---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '22229'
abstract:
- lang: eng
  text: Hippocampal CA3 pyramidal neurons (PNs) form the largest autoassociative network
    in the mammalian brain. Whether CA3–CA3 recurrent connectivity is genetically
    preconfigured or environmentally shaped during ongoing memory storage is currently
    unknown. To address this question, we performed multicellular patch-clamp-based
    circuit mapping of up to eight CA3 PNs in the mouse hippocampus at multiple postnatal
    time points (P7–8, P18–25, and P45–50). Here, we show that the hippocampal CA3
    network undergoes a developmental transformation from local, dense, and random
    connectivity to a distributed, sparse, and structured configuration. Thus, sparse
    and structured connectivity may emerge via experience-dependent mechanisms. In
    parallel, the strength of single synapses is downregulated; single synaptic events
    are sufficient to trigger postsynaptic spiking early in development, whereas spatial
    summation of several inputs is required at later time points. Biologically inspired
    models of memory storage by Hebbian synaptic plasticity and retrieval via pattern
    completion suggest that developmental changes improve specific aspects of memory
    storage and retrieval. Our results imply a developmental transformation of the
    neuronal code and the memory functions in the hippocampal CA3 network.</jats:p>
acknowledged_ssus:
- _id: PreCl
- _id: Bio
- _id: M-Shop
- _id: ScienComp
acknowledgement: 'We thank Jose Guzman, Simon Hippenmeyer, and Tim Vogels for critically
  reading the manuscript, Jozsef Csicsvari for useful discussions, Florian Marr for
  technical assistance, and Eleftheria Kralli-Beller for manuscript editing. This
  research was supported by the Scientific Services Units (SSUs) of ISTA: the preclinical
  facility (PCF) provided housing and breeding of the animals, the imaging and optics
  facility (IOF) offered technical training and state of the art equipment, the Miba
  machine shop contributed to the construction and maintenance of multicellular recording
  setups, and the scientific computing unit helped with the large-scale simulations.
  The project received funding from the European Union’s Horizon 2020 research and
  innovation programme (ERC Advanced Grants No 692692 GIANTSYN and 101199096 CA3-SYNGRAM
  to P.J.; Marie Skłodowska-Curie Grant 754411 to V.V.B.; Marie Skłodowska-Curie Grant
  101026635 to J.F.W.), the Fond zur Förderung der Wissenschaftlichen Forschung (P
  36232-B, PAT4178023, and 10.55776/CoE16 to P.J.), and the Nomis Foundation (fellowship
  to A.N.-O.). V.V.B. received funding from a CONACyT fellowship (289638).'
article_number: '5540'
article_processing_charge: Yes
article_type: original
author:
- first_name: Victor M
  full_name: Vargas Barroso, Victor M
  id: 2F55A9DE-F248-11E8-B48F-1D18A9856A87
  last_name: Vargas Barroso
- first_name: Jake
  full_name: Watson, Jake
  id: 63836096-4690-11EA-BD4E-32803DDC885E
  last_name: Watson
  orcid: 0000-0002-8698-3823
- first_name: Andrea C
  full_name: Navas Olivé, Andrea C
  id: 739d26c9-52e8-11ee-8d72-f14d3893b4ce
  last_name: Navas Olivé
  orcid: 0000-0002-9280-8597
- first_name: Alois
  full_name: Schlögl, Alois
  id: 45BF87EE-F248-11E8-B48F-1D18A9856A87
  last_name: Schlögl
  orcid: 0000-0002-5621-8100
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Vargas Barroso VM, Watson J, Navas Olivé AC, Schlögl A, Jonas PM. Developmental
    emergence of sparse and structured synaptic connectivity in the hippocampal CA3
    memory circuit. <i>Nature Communications</i>. 2026;17. doi:<a href="https://doi.org/10.1038/s41467-026-71914-x">10.1038/s41467-026-71914-x</a>
  apa: Vargas Barroso, V. M., Watson, J., Navas Olivé, A. C., Schlögl, A., &#38; Jonas,
    P. M. (2026). Developmental emergence of sparse and structured synaptic connectivity
    in the hippocampal CA3 memory circuit. <i>Nature Communications</i>. Springer
    Nature. <a href="https://doi.org/10.1038/s41467-026-71914-x">https://doi.org/10.1038/s41467-026-71914-x</a>
  chicago: Vargas Barroso, Victor M, Jake Watson, Andrea C Navas Olivé, Alois Schlögl,
    and Peter M Jonas. “Developmental Emergence of Sparse and Structured Synaptic
    Connectivity in the Hippocampal CA3 Memory Circuit.” <i>Nature Communications</i>.
    Springer Nature, 2026. <a href="https://doi.org/10.1038/s41467-026-71914-x">https://doi.org/10.1038/s41467-026-71914-x</a>.
  ieee: V. M. Vargas Barroso, J. Watson, A. C. Navas Olivé, A. Schlögl, and P. M.
    Jonas, “Developmental emergence of sparse and structured synaptic connectivity
    in the hippocampal CA3 memory circuit,” <i>Nature Communications</i>, vol. 17.
    Springer Nature, 2026.
  ista: Vargas Barroso VM, Watson J, Navas Olivé AC, Schlögl A, Jonas PM. 2026. Developmental
    emergence of sparse and structured synaptic connectivity in the hippocampal CA3
    memory circuit. Nature Communications. 17, 5540.
  mla: Vargas Barroso, Victor M., et al. “Developmental Emergence of Sparse and Structured
    Synaptic Connectivity in the Hippocampal CA3 Memory Circuit.” <i>Nature Communications</i>,
    vol. 17, 5540, Springer Nature, 2026, doi:<a href="https://doi.org/10.1038/s41467-026-71914-x">10.1038/s41467-026-71914-x</a>.
  short: V.M. Vargas Barroso, J. Watson, A.C. Navas Olivé, A. Schlögl, P.M. Jonas,
    Nature Communications 17 (2026).
corr_author: '1'
das_tickbox: '1'
dataavailabilitystatement: Source data are provided with this paper. Additional original
  data are available from the corresponding author upon request. Code is available
  from https://doi.org/10.15479/AT-ISTA-21442 under the link https://research-explorer.ista.ac.at/download/21442/21443/ca3simu-vargas2026v1.tar.gz
date_created: 2026-06-30T13:05:52Z
date_published: 2026-06-23T00:00:00Z
date_updated: 2026-07-01T06:47:49Z
day: '23'
ddc:
- '570'
department:
- _id: PeJo
- _id: ScienComp
doi: 10.1038/s41467-026-71914-x
ec_funded: 1
external_id:
  pmid:
  - '42014695'
file:
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  date_created: 2026-07-01T06:46:06Z
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  file_id: '22231'
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fulldoi: https://doi.org/10.1038/s41467-026-71914-x
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intvolume: '        17'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: e62b56fe-ab3c-11f0-94c7-d181dd352b3b
  grant_number: '101199096'
  name: Synaptic mechanisms of engram storage and retrieval in CA3 hippocampal microcircuits
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
- _id: fc2be41b-9c52-11eb-aca3-faa90aa144e9
  call_identifier: H2020
  grant_number: '101026635'
  name: Synaptic computations of the hippocampal CA3 circuitry
- _id: bd88be38-d553-11ed-ba76-81d5a70a6ef5
  grant_number: P36232
  name: Mechanisms of GABA release in hippocampal circuits
- _id: 8d9195e9-16d5-11f0-9cad-d075be887a1e
  grant_number: PAT 4178023
  name: Synaptic networks of human brain
- _id: 26366136-B435-11E9-9278-68D0E5697425
  name: Reglas de Conectividad funcional en el hipocampo
publication: Nature Communications
publication_identifier:
  eissn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
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supplementarymaterial: yes
title: Developmental emergence of sparse and structured synaptic connectivity in the
  hippocampal CA3 memory circuit
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 17
year: '2026'
...
---
OA_type: closed access
_id: '22305'
abstract:
- lang: eng
  text: Active dendrites enrich the repertoire of single-neuron computations. Whereas
    a lot is known about the function of dendrites in vitro, information about their
    in vivo properties is limited. A new study1 uses advanced imaging to study hippocampal
    CA1 pyramidal neuron dendrites in head-fixed, awake animals.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Subhodeep
  full_name: Bhattacharya, Subhodeep
  id: 45f74010-66f6-11f0-a7d4-c441fa3685ff
  last_name: Bhattacharya
  orcid: 0009-0009-0334-9068
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Bhattacharya S, Jonas PM. Mission impossible? Quantitative analysis of dendritic
    computations in vivo. <i>Neuron</i>. 2026;114(10):1706-1708. doi:<a href="https://doi.org/10.1016/j.neuron.2026.04.002">10.1016/j.neuron.2026.04.002</a>
  apa: Bhattacharya, S., &#38; Jonas, P. M. (2026). Mission impossible? Quantitative
    analysis of dendritic computations in vivo. <i>Neuron</i>. Cell Press. <a href="https://doi.org/10.1016/j.neuron.2026.04.002">https://doi.org/10.1016/j.neuron.2026.04.002</a>
  chicago: Bhattacharya, Subhodeep, and Peter M Jonas. “Mission Impossible? Quantitative
    Analysis of Dendritic Computations in Vivo.” <i>Neuron</i>. Cell Press, 2026.
    <a href="https://doi.org/10.1016/j.neuron.2026.04.002">https://doi.org/10.1016/j.neuron.2026.04.002</a>.
  ieee: S. Bhattacharya and P. M. Jonas, “Mission impossible? Quantitative analysis
    of dendritic computations in vivo,” <i>Neuron</i>, vol. 114, no. 10. Cell Press,
    pp. 1706–1708, 2026.
  ista: Bhattacharya S, Jonas PM. 2026. Mission impossible? Quantitative analysis
    of dendritic computations in vivo. Neuron. 114(10), 1706–1708.
  mla: Bhattacharya, Subhodeep, and Peter M. Jonas. “Mission Impossible? Quantitative
    Analysis of Dendritic Computations in Vivo.” <i>Neuron</i>, vol. 114, no. 10,
    Cell Press, 2026, pp. 1706–08, doi:<a href="https://doi.org/10.1016/j.neuron.2026.04.002">10.1016/j.neuron.2026.04.002</a>.
  short: S. Bhattacharya, P.M. Jonas, Neuron 114 (2026) 1706–1708.
corr_author: '1'
das_tickbox: '0'
date_created: 2026-07-13T10:51:27Z
date_published: 2026-05-20T00:00:00Z
date_updated: 2026-10-20T09:00:56Z
day: '20'
department:
- _id: PeJo
doi: 10.1016/j.neuron.2026.04.002
external_id:
  pmid:
  - '42161246'
fulldoi: https://doi.org/10.1016/j.neuron.2026.04.002
intvolume: '       114'
issue: '10'
language:
- iso: eng
month: '05'
oa_version: None
page: 1706-1708
pmid: 1
publication: Neuron
publication_identifier:
  issn:
  - 0896-6273
publication_status: published
publisher: Cell Press
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: Mission impossible? Quantitative analysis of dendritic computations in vivo
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 114
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
_id: '18879'
abstract:
- lang: eng
  text: 'Our brain has remarkable computational power, generating sophisticated behaviors,
    storing memories over an individual’s lifetime, and producing higher cognitive
    functions. However, little of our neuroscience knowledge covers the human brain.
    Is this organ truly unique, or is it a scaled version of the extensively studied
    rodent brain? Combining multicellular patch-clamp recording with expansion-based
    superresolution microscopy and full-scale modeling, we determined the cellular
    and microcircuit properties of the human hippocampal CA3 region, a fundamental
    circuit for memory storage. In contrast to neocortical networks, human hippocampal
    CA3 displayed sparse connectivity, providing a circuit architecture that maximizes
    associational power. Human synapses showed unique reliability, high precision,
    and long integration times, exhibiting both species- and circuit-specific properties.
    Together with expanded neuronal numbers, these circuit characteristics greatly
    enhanced the memory storage capacity of CA3. Our results reveal distinct microcircuit
    properties of the human hippocampus and begin to unravel the inner workings of
    our most complex organ. '
acknowledged_ssus:
- _id: Bio
- _id: PreCl
- _id: LifeSc
- _id: M-Shop
- _id: ScienComp
acknowledgement: We thank Florian Marr for excellent technical assistance, Christina
  Altmutter and Julia Flor for technical support, Alois Schlögl for programming, Todor
  Asenov for development of the transportation box for human brain tissue, Tim Vogels
  for guidance on simulations, Marcus Huber for mathematical advice, Walter Kaufmann
  for assistance with handling frozen tissue, and Eleftheria Kralli-Beller for manuscript
  editing. This research was supported by the Scientific Services Units (SSUs) of
  ISTA, and we are grateful for assistance from Christoph Sommer and the Imaging and
  Optics Facility, Preclinical Facility, Lab Support Facility, Miba Machine Shop,
  and Scientific Computing. We are particularly grateful to the patient donors for
  their support of this project and also acknowledge the excellent support of the
  Medical University of Vienna Department of Neurosurgery staff; Romana Hoeftberger
  and the Division of Neuropathology and Neurochemistry; Gregor Kasprian and the Division
  of Neuroradiology and Musculoskeletal Radiology; and Christoph Baumgartner, Martha
  Feucht, and Ekaterina Pataraia for their clinical care of the patients included
  in this study. We thank Laura Jonkman, the NABCA biobank, and postmortem brain sample
  donors for their support of this research. The project received funding from the
  European Research Council (ERC) under the European Union’s Horizon 2020 research
  and innovation programme (advanced grant no. 692692 to P.J. and Marie Skłodowska-Curie
  Actions Individual Fellowship no. 101026635 to J.F.W.), the Austrian Science Fund
  (FWF; grant PAT 4178023 to P.J. and grant DK W1232 to M.R.T. and J.G.D.), the Austrian
  Academy of Sciences (DOC fellowship 26137 to M.R.T.), and a NOMIS-ISTA fellowship
  (to A.N.-O.).
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Jake
  full_name: Watson, Jake
  id: 63836096-4690-11EA-BD4E-32803DDC885E
  last_name: Watson
  orcid: 0000-0002-8698-3823
- first_name: Victor M
  full_name: Vargas Barroso, Victor M
  id: 2F55A9DE-F248-11E8-B48F-1D18A9856A87
  last_name: Vargas Barroso
- first_name: Rebecca
  full_name: Morse, Rebecca
  id: ceb89ae7-dc8d-11ea-abe3-da3301d0eab4
  last_name: Morse
- first_name: Andrea C
  full_name: Navas Olivé, Andrea C
  id: 739d26c9-52e8-11ee-8d72-f14d3893b4ce
  last_name: Navas Olivé
  orcid: 0000-0002-9280-8597
- first_name: Mojtaba
  full_name: Tavakoli, Mojtaba
  id: 3A0A06F4-F248-11E8-B48F-1D18A9856A87
  last_name: Tavakoli
  orcid: 0000-0002-7667-6854
- first_name: Johann G
  full_name: Danzl, Johann G
  id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
  last_name: Danzl
  orcid: 0000-0001-8559-3973
- first_name: Matthias
  full_name: Tomschik, Matthias
  last_name: Tomschik
- first_name: Karl
  full_name: Rössler, Karl
  last_name: Rössler
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Watson J, Vargas Barroso VM, Morse R, et al. Human hippocampal CA3 uses specific
    functional connectivity rules for efficient associative memory. <i>Cell</i>. 2025;188(2):501-514.e18.
    doi:<a href="https://doi.org/10.1016/j.cell.2024.11.022">10.1016/j.cell.2024.11.022</a>
  apa: Watson, J., Vargas Barroso, V. M., Morse, R., Navas Olivé, A. C., Tavakoli,
    M., Danzl, J. G., … Jonas, P. M. (2025). Human hippocampal CA3 uses specific functional
    connectivity rules for efficient associative memory. <i>Cell</i>. Cell Press.
    <a href="https://doi.org/10.1016/j.cell.2024.11.022">https://doi.org/10.1016/j.cell.2024.11.022</a>
  chicago: Watson, Jake, Victor M Vargas Barroso, Rebecca Morse, Andrea C Navas Olivé,
    Mojtaba Tavakoli, Johann G Danzl, Matthias Tomschik, Karl Rössler, and Peter M
    Jonas. “Human Hippocampal CA3 Uses Specific Functional Connectivity Rules for
    Efficient Associative Memory.” <i>Cell</i>. Cell Press, 2025. <a href="https://doi.org/10.1016/j.cell.2024.11.022">https://doi.org/10.1016/j.cell.2024.11.022</a>.
  ieee: J. Watson <i>et al.</i>, “Human hippocampal CA3 uses specific functional connectivity
    rules for efficient associative memory,” <i>Cell</i>, vol. 188, no. 2. Cell Press,
    p. 501–514.e18, 2025.
  ista: Watson J, Vargas Barroso VM, Morse R, Navas Olivé AC, Tavakoli M, Danzl JG,
    Tomschik M, Rössler K, Jonas PM. 2025. Human hippocampal CA3 uses specific functional
    connectivity rules for efficient associative memory. Cell. 188(2), 501–514.e18.
  mla: Watson, Jake, et al. “Human Hippocampal CA3 Uses Specific Functional Connectivity
    Rules for Efficient Associative Memory.” <i>Cell</i>, vol. 188, no. 2, Cell Press,
    2025, p. 501–514.e18, doi:<a href="https://doi.org/10.1016/j.cell.2024.11.022">10.1016/j.cell.2024.11.022</a>.
  short: J. Watson, V.M. Vargas Barroso, R. Morse, A.C. Navas Olivé, M. Tavakoli,
    J.G. Danzl, M. Tomschik, K. Rössler, P.M. Jonas, Cell 188 (2025) 501–514.e18.
corr_author: '1'
date_created: 2025-01-26T23:01:49Z
date_published: 2025-01-23T00:00:00Z
date_updated: 2026-10-20T08:20:04Z
day: '23'
ddc:
- '570'
department:
- _id: JoDa
- _id: PeJo
- _id: GradSch
doi: 10.1016/j.cell.2024.11.022
ec_funded: 1
external_id:
  isi:
  - '001408395600001'
  pmid:
  - '39667938'
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intvolume: '       188'
isi: 1
issue: '2'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 501-514.e18
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project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: fc2be41b-9c52-11eb-aca3-faa90aa144e9
  call_identifier: H2020
  grant_number: '101026635'
  name: Synaptic computations of the hippocampal CA3 circuitry
- _id: 6285a163-2b32-11ec-9570-8e204ca2dba5
  grant_number: '26137'
  name: Studying Organelle Structure and Function at Nanoscale Resolution with Expansion
    Microscopy
- _id: 2548AE96-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232
  name: Molecular Drug Targets
- _id: 8d9195e9-16d5-11f0-9cad-d075be887a1e
  grant_number: PAT 4178023
  name: Synaptic networks of human brain
- _id: 9B861AAC-BA93-11EA-9121-9846C619BF3A
  name: NOMIS Fellowship Program
publication: Cell
publication_identifier:
  eissn:
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publisher: Cell Press
quality_controlled: '1'
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scopus_import: '1'
status: public
title: Human hippocampal CA3 uses specific functional connectivity rules for efficient
  associative memory
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 188
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '20099'
abstract:
- lang: eng
  text: The hippocampus, critical for learning and memory, is dogmatically described
    as a trisynaptic circuit where dentate gyrus granule cells (GCs), CA3 pyramidal
    neurons (PNs), and CA1 PNs are serially connected. However, CA3 also forms an
    autoassociative network, and its PNs have diverse morphologies, intrinsic properties,
    and GC input levels. How PN subtypes compose this recurrent network is unknown.
    To determine the synaptic arrangement of identified CA3 PNs, we combine multicellular
    patch-clamp recording and post hoc morphological analysis in mouse hippocampal
    slices. PNs can be divided into distinct “superficial” and “deep” subclasses,
    the latter including previously reported “athorny” cells. Subclasses have distinct
    input-output transformations and asymmetric connectivity, which is more abundant
    from superficial to deep PNs, splitting CA3 locally into two parallel recurrent
    networks. Coincident spontaneous inhibition occurs frequently within but not between
    subclasses, implying subclass-specific inhibitory innervation. Our results suggest
    two separately controlled sublayers for parallel information processing in hippocampal
    CA3.
acknowledged_ssus:
- _id: Bio
- _id: PreCl
- _id: LifeSc
- _id: M-Shop
acknowledgement: We thank Andrea Navas-Olive and Rebecca J. Morse-Mora for critically
  reading an earlier version of the manuscript. We also thank Florian Marr and Christina
  Altmutter for excellent technical assistance, Alois Schlögl for programming and
  data-handling assistance, Todor Asenov for technical support, and Eleftheria Kralli-Beller
  for manuscript editing. This research was supported by the Scientific Services Units
  (SSUs) of ISTA. We are particularly grateful for assistance from the Imaging and
  Optics Facility, Preclinical Facility, Lab Support Facility, and Miba Machine Shop.
  The project received funding from the European Research Council (ERC) under the
  European Union’s Horizon 2020 research and innovation program (grant agreement no.
  692692 to P.J., Marie Skłodowska-Curie Actions Individual Fellowship no. 101026635
  to J.F.W., and an ISTplus Fellowship through Marie Skłodowska-Curie grant agreement
  no. 754411 to V.V.-B.), the Austrian Science Fund (P 36232-B, PAT 4178023, and Cluster
  of Excellence 10.55776/COE16 to P.J.), and a CONACyT fellowship (289638 to V.V.-B.)
  and was supported by a non-stipendiary EMBO fellowship (ALTF 756–2020 to J.F.W.).
article_number: '116080'
article_processing_charge: Yes
article_type: original
author:
- first_name: Jake
  full_name: Watson, Jake
  id: 63836096-4690-11EA-BD4E-32803DDC885E
  last_name: Watson
  orcid: 0000-0002-8698-3823
- first_name: Victor M
  full_name: Vargas Barroso, Victor M
  id: 2F55A9DE-F248-11E8-B48F-1D18A9856A87
  last_name: Vargas Barroso
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Watson J, Vargas Barroso VM, Jonas PM. Cell-specific wiring routes information
    flow through hippocampal CA3. <i>Cell Reports</i>. 2025;44(8). doi:<a href="https://doi.org/10.1016/j.celrep.2025.116080">10.1016/j.celrep.2025.116080</a>
  apa: Watson, J., Vargas Barroso, V. M., &#38; Jonas, P. M. (2025). Cell-specific
    wiring routes information flow through hippocampal CA3. <i>Cell Reports</i>. Cell
    Press. <a href="https://doi.org/10.1016/j.celrep.2025.116080">https://doi.org/10.1016/j.celrep.2025.116080</a>
  chicago: Watson, Jake, Victor M Vargas Barroso, and Peter M Jonas. “Cell-Specific
    Wiring Routes Information Flow through Hippocampal CA3.” <i>Cell Reports</i>.
    Cell Press, 2025. <a href="https://doi.org/10.1016/j.celrep.2025.116080">https://doi.org/10.1016/j.celrep.2025.116080</a>.
  ieee: J. Watson, V. M. Vargas Barroso, and P. M. Jonas, “Cell-specific wiring routes
    information flow through hippocampal CA3,” <i>Cell Reports</i>, vol. 44, no. 8.
    Cell Press, 2025.
  ista: Watson J, Vargas Barroso VM, Jonas PM. 2025. Cell-specific wiring routes information
    flow through hippocampal CA3. Cell Reports. 44(8), 116080.
  mla: Watson, Jake, et al. “Cell-Specific Wiring Routes Information Flow through
    Hippocampal CA3.” <i>Cell Reports</i>, vol. 44, no. 8, 116080, Cell Press, 2025,
    doi:<a href="https://doi.org/10.1016/j.celrep.2025.116080">10.1016/j.celrep.2025.116080</a>.
  short: J. Watson, V.M. Vargas Barroso, P.M. Jonas, Cell Reports 44 (2025).
corr_author: '1'
date_created: 2025-08-03T22:01:30Z
date_published: 2025-08-01T00:00:00Z
date_updated: 2026-10-20T08:55:57Z
day: '01'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1016/j.celrep.2025.116080
ec_funded: 1
external_id:
  isi:
  - '001544472300002'
file:
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  checksum: 556ff9760661ecd23949d75031043b1f
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  creator: dernst
  date_created: 2025-08-04T06:53:07Z
  date_updated: 2025-08-04T06:53:07Z
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file_date_updated: 2025-08-04T06:53:07Z
fulldoi: https://doi.org/10.1016/j.celrep.2025.116080
has_accepted_license: '1'
intvolume: '        44'
isi: 1
issue: '8'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: fc2be41b-9c52-11eb-aca3-faa90aa144e9
  call_identifier: H2020
  grant_number: '101026635'
  name: Synaptic computations of the hippocampal CA3 circuitry
- _id: bd88be38-d553-11ed-ba76-81d5a70a6ef5
  grant_number: P36232
  name: Mechanisms of GABA release in hippocampal circuits
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
- _id: 0a6c8641-b036-11f1-bacf-e4eec62b5bb4
  grant_number: COE16
  name: Neuronal circuits in health and disease (Jonas)
publication: Cell Reports
publication_identifier:
  eissn:
  - 2211-1247
  issn:
  - 2639-1856
publication_status: published
publisher: Cell Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cell-specific wiring routes information flow through hippocampal CA3
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 44
year: '2025'
...
---
APC_amount: 6248,82 EUR
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '18603'
abstract:
- lang: eng
  text: It is widely believed that information storage in neuronal circuits involves
    nanoscopic structural changes at synapses, resulting in the formation of synaptic
    engrams. However, direct evidence for this hypothesis is lacking. To test this
    conjecture, we combined chemical potentiation, functional analysis by paired pre-postsynaptic
    recordings, and structural analysis by electron microscopy (EM) and freeze-fracture
    replica labeling (FRL) at the rodent hippocampal mossy fiber synapse, a key synapse
    in the trisynaptic circuit of the hippocampus. Biophysical analysis of synaptic
    transmission revealed that forskolin-induced chemical potentiation increased the
    readily releasable vesicle pool size and vesicular release probability by 146%
    and 49%, respectively. Structural analysis of mossy fiber synapses by EM and FRL
    demonstrated an increase in the number of vesicles close to the plasma membrane
    and the number of clusters of the priming protein Munc13-1, indicating an increase
    in the number of both docked and primed vesicles. Furthermore, FRL analysis revealed
    a significant reduction of the distance between Munc13-1 and CaV2.1 Ca2+ channels,
    suggesting reconfiguration of the channel-vesicle coupling nanotopography. Our
    results indicate that presynaptic plasticity is associated with structural reorganization
    of active zones. We propose that changes in potential nanoscopic organization
    at synaptic vesicle release sites may be correlates of learning and memory at
    a plastic central synapse.
acknowledged_ssus:
- _id: EM-Fac
- _id: PreCl
acknowledgement: "We thank Carolina Borges-Merjane, Jing-Jing Chen, Katharina Lichter,
  and Samuel Young for critically reading the manuscript; the Electron Microscopy
  Facility of ISTA, in particular Vanessa Zheden, for extensive support, advice, and
  experimental assistance; the Preclinical Facility of ISTA, in particular Victoria
  Wimmer and Michael Schunn, for experimental assistance; Florian Marr and Christina
  Altmutter for technical support; Alois Schlögl for help with analysis; and Eleftheria
  Kralli-Beller for manuscript editing. We also thank Cordelia Imig for providing
  Munc13-1cKO-Munc13-2/3(−/−) mutant mice. Part of the work has been published in
  O.K.’s thesis in partial fulfillment of the requirements for the degree of Doctor
  of Philosophy.\r\nThis project received funding from the European Research Council
  and European Union’s Horizon 2020 research and innovation programme (ERC 692692
  to P.J.; https://cordis.europa.eu/project/id/692692/de) and from the Fond zur Förderung
  der Wissenschaftlichen Forschung (Z312-B27 Wittgenstein award to P.J., https://www.fwf.ac.at/en/funding/portfolio/projects/fwf-wittgenstein-award;
  W1205-B09 and P36232-B to P.J., https://www.fwf.ac.at/en/funding; I6166-B to R.S.;
  https://www.fwf.ac.at/en/funding). The funders had no role in study design, data
  collection and analysis, decision to publish, or preparation of the manuscript."
article_number: e3002879
article_processing_charge: Yes
article_type: original
author:
- first_name: Olena
  full_name: Kim, Olena
  id: 3F8ABDDA-F248-11E8-B48F-1D18A9856A87
  last_name: Kim
  orcid: 0000-0003-2344-1039
- first_name: Yuji
  full_name: Okamoto, Yuji
  id: 3337E116-F248-11E8-B48F-1D18A9856A87
  last_name: Okamoto
  orcid: 0000-0003-0408-6094
- first_name: Walter
  full_name: Kaufmann, Walter
  id: 3F99E422-F248-11E8-B48F-1D18A9856A87
  last_name: Kaufmann
  orcid: 0000-0001-9735-5315
- first_name: Nils
  full_name: Brose, Nils
  last_name: Brose
- first_name: Ryuichi
  full_name: Shigemoto, Ryuichi
  id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
  last_name: Shigemoto
  orcid: 0000-0001-8761-9444
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Kim O, Okamoto Y, Kaufmann W, Brose N, Shigemoto R, Jonas PM. Presynaptic cAMP-PKA-mediated
    potentiation induces reconfiguration of synaptic vesicle pools and channel-vesicle
    coupling at hippocampal mossy fiber boutons. <i>PLoS Biology</i>. 2024;22(11).
    doi:<a href="https://doi.org/10.1371/journal.pbio.3002879">10.1371/journal.pbio.3002879</a>
  apa: Kim, O., Okamoto, Y., Kaufmann, W., Brose, N., Shigemoto, R., &#38; Jonas,
    P. M. (2024). Presynaptic cAMP-PKA-mediated potentiation induces reconfiguration
    of synaptic vesicle pools and channel-vesicle coupling at hippocampal mossy fiber
    boutons. <i>PLoS Biology</i>. Public Library of Science. <a href="https://doi.org/10.1371/journal.pbio.3002879">https://doi.org/10.1371/journal.pbio.3002879</a>
  chicago: Kim, Olena, Yuji Okamoto, Walter Kaufmann, Nils Brose, Ryuichi Shigemoto,
    and Peter M Jonas. “Presynaptic CAMP-PKA-Mediated Potentiation Induces Reconfiguration
    of Synaptic Vesicle Pools and Channel-Vesicle Coupling at Hippocampal Mossy Fiber
    Boutons.” <i>PLoS Biology</i>. Public Library of Science, 2024. <a href="https://doi.org/10.1371/journal.pbio.3002879">https://doi.org/10.1371/journal.pbio.3002879</a>.
  ieee: O. Kim, Y. Okamoto, W. Kaufmann, N. Brose, R. Shigemoto, and P. M. Jonas,
    “Presynaptic cAMP-PKA-mediated potentiation induces reconfiguration of synaptic
    vesicle pools and channel-vesicle coupling at hippocampal mossy fiber boutons,”
    <i>PLoS Biology</i>, vol. 22, no. 11. Public Library of Science, 2024.
  ista: Kim O, Okamoto Y, Kaufmann W, Brose N, Shigemoto R, Jonas PM. 2024. Presynaptic
    cAMP-PKA-mediated potentiation induces reconfiguration of synaptic vesicle pools
    and channel-vesicle coupling at hippocampal mossy fiber boutons. PLoS Biology.
    22(11), e3002879.
  mla: Kim, Olena, et al. “Presynaptic CAMP-PKA-Mediated Potentiation Induces Reconfiguration
    of Synaptic Vesicle Pools and Channel-Vesicle Coupling at Hippocampal Mossy Fiber
    Boutons.” <i>PLoS Biology</i>, vol. 22, no. 11, e3002879, Public Library of Science,
    2024, doi:<a href="https://doi.org/10.1371/journal.pbio.3002879">10.1371/journal.pbio.3002879</a>.
  short: O. Kim, Y. Okamoto, W. Kaufmann, N. Brose, R. Shigemoto, P.M. Jonas, PLoS
    Biology 22 (2024).
corr_author: '1'
date_created: 2024-12-01T23:01:54Z
date_published: 2024-11-18T00:00:00Z
date_updated: 2026-04-16T12:20:34Z
day: '18'
ddc:
- '570'
department:
- _id: PeJo
- _id: EM-Fac
- _id: RySh
doi: 10.1371/journal.pbio.3002879
ec_funded: 1
external_id:
  isi:
  - '001358568700003'
  pmid:
  - '39556620'
file:
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  checksum: 7de2dcb50deb65dde05c80082bb85a82
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  creator: dernst
  date_created: 2024-12-03T08:56:53Z
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  file_id: '18608'
  file_name: 2024_PloSBio_Kim.pdf
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  success: 1
file_date_updated: 2024-12-03T08:56:53Z
fulldoi: https://doi.org/10.1371/journal.pbio.3002879
has_accepted_license: '1'
intvolume: '        22'
isi: 1
issue: '11'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
- _id: bd88be38-d553-11ed-ba76-81d5a70a6ef5
  grant_number: P36232
  name: Mechanisms of GABA release in hippocampal circuits
- _id: b1b85715-d554-11ed-a5ad-84a07fc9f18e
  grant_number: I06166
  name: Structural & functional basis of presynaptic plasticity
- _id: 25C3DBB6-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W01205
  name: Zellkommunikation in Gesundheit und Krankheit
- _id: 3AC91DDA-15DF-11EA-824D-93A3E7B544D1
  call_identifier: FWF
  name: FWF Open Access Fund
publication: PLoS Biology
publication_identifier:
  eissn:
  - 1545-7885
  issn:
  - 1544-9173
publication_status: published
publisher: Public Library of Science
quality_controlled: '1'
related_material:
  record:
  - id: '18296'
    relation: research_data
    status: public
scopus_import: '1'
status: public
title: Presynaptic cAMP-PKA-mediated potentiation induces reconfiguration of synaptic
  vesicle pools and channel-vesicle coupling at hippocampal mossy fiber boutons
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 22
year: '2024'
...
---
_id: '15117'
abstract:
- lang: eng
  text: 'The hippocampal mossy fiber synapse, formed between axons of dentate gyrus
    granule cells and dendrites of CA3 pyramidal neurons, is a key synapse in the
    trisynaptic circuitry of the hippocampus. Because of its comparatively large size,
    this synapse is accessible to direct presynaptic recording, allowing a rigorous
    investigation of the biophysical mechanisms of synaptic transmission and plasticity.
    Furthermore, because of its placement in the very center of the hippocampal memory
    circuit, this synapse seems to be critically involved in several higher network
    functions, such as learning, memory, pattern separation, and pattern completion.
    Recent work based on new technologies in both nanoanatomy and nanophysiology,
    including presynaptic patch-clamp recording, paired recording, super-resolution
    light microscopy, and freeze-fracture and “flash-and-freeze” electron microscopy,
    has provided new insights into the structure, biophysics, and network function
    of this intriguing synapse. This brings us one step closer to answering a fundamental
    question in neuroscience: how basic synaptic properties shape higher network computations.'
acknowledgement: "We thank previous students, postdocs, and collaborators, particularly
  J. Geiger, and (in alphabetical order) H. Alle, J. Bischofberger, C. Borges-Merjane,
  D. Engel, M. Frotscher, S. Hallermann, M. Heckmann, S. Jamrichova, O. Kim, L. Li,
  K. Lichter, P. Lin, J. Lübke, Y. Okamoto, C. Pawlu, C. Schmidt-Hieber, N. Spruston,
  and N. Vyleta for their outstanding experimental contributions. We also thank P.
  Castillo, J. Geiger, T. Sakaba, S. Siegert, T. Vogels, and J. Watson for critically
  reading the manuscript, E. Kralli-Beller for text editing, and J. Malikovic and
  L. Slomianka for useful discussions. We apologize that, due to space constraints,
  not all relevant papers could be cited.\r\nThis project was supported by the European
  Research Council (ERC) under the European Union’s Horizon 2020 research and innovation
  program (grant agreement 692692, AdG “GIANTSYN”) and the Fonds zur Förderung der
  Wissenschaftlichen Forschung (Z 312-B27, Wittgenstein Award; P 36232-B, stand-alone
  grant), both to P.J."
article_processing_charge: No
article_type: review
author:
- first_name: David H
  full_name: Vandael, David H
  id: 3AE48E0A-F248-11E8-B48F-1D18A9856A87
  last_name: Vandael
  orcid: 0000-0001-7577-1676
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Vandael DH, Jonas PM. Structure, biophysics, and circuit function of a “giant”
    cortical presynaptic terminal. <i>Science</i>. 2024;383(6687):eadg6757. doi:<a
    href="https://doi.org/10.1126/science.adg6757">10.1126/science.adg6757</a>
  apa: Vandael, D. H., &#38; Jonas, P. M. (2024). Structure, biophysics, and circuit
    function of a “giant” cortical presynaptic terminal. <i>Science</i>. AAAS. <a
    href="https://doi.org/10.1126/science.adg6757">https://doi.org/10.1126/science.adg6757</a>
  chicago: Vandael, David H, and Peter M Jonas. “Structure, Biophysics, and Circuit
    Function of a ‘Giant’ Cortical Presynaptic Terminal.” <i>Science</i>. AAAS, 2024.
    <a href="https://doi.org/10.1126/science.adg6757">https://doi.org/10.1126/science.adg6757</a>.
  ieee: D. H. Vandael and P. M. Jonas, “Structure, biophysics, and circuit function
    of a ‘giant’ cortical presynaptic terminal,” <i>Science</i>, vol. 383, no. 6687.
    AAAS, p. eadg6757, 2024.
  ista: Vandael DH, Jonas PM. 2024. Structure, biophysics, and circuit function of
    a ‘giant’ cortical presynaptic terminal. Science. 383(6687), eadg6757.
  mla: Vandael, David H., and Peter M. Jonas. “Structure, Biophysics, and Circuit
    Function of a ‘Giant’ Cortical Presynaptic Terminal.” <i>Science</i>, vol. 383,
    no. 6687, AAAS, 2024, p. eadg6757, doi:<a href="https://doi.org/10.1126/science.adg6757">10.1126/science.adg6757</a>.
  short: D.H. Vandael, P.M. Jonas, Science 383 (2024) eadg6757.
corr_author: '1'
das_tickbox: '0'
date_created: 2024-03-17T23:00:57Z
date_published: 2024-03-08T00:00:00Z
date_updated: 2026-09-17T09:49:03Z
day: '08'
department:
- _id: PeJo
doi: 10.1126/science.adg6757
ec_funded: 1
external_id:
  isi:
  - '001216996700015'
  pmid:
  - '38452088'
fulldoi: https://doi.org/10.1126/science.adg6757
intvolume: '       383'
isi: 1
issue: '6687'
language:
- iso: eng
month: '03'
oa_version: None
page: eadg6757
pmid: 1
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
- _id: bd88be38-d553-11ed-ba76-81d5a70a6ef5
  grant_number: P36232
  name: Mechanisms of GABA release in hippocampal circuits
publication: Science
publication_identifier:
  eissn:
  - 1095-9203
publication_status: published
publisher: AAAS
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: Structure, biophysics, and circuit function of a "giant" cortical presynaptic
  terminal
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 383
year: '2024'
...
---
OA_place: repository
_id: '18688'
abstract:
- lang: eng
  text: The human brain has remarkable computational power. It generates sophisticated
    behavioral sequences, stores engrams over an individual’s lifetime, and produces
    higher cognitive functions up to the level of consciousness. However, so little
    of our neuroscience knowledge covers the human brain, and it remains unknown whether
    this organ is truly unique, or is a scaled version of the extensively studied
    rodent brain. To address this fundamental question, we determined the cellular,
    synaptic, and connectivity rules of the hippocampal CA3 recurrent circuit using
    multicellular patch clamp-recording. This circuit is the largest autoassociative
    network in the brain, and plays a key role in memory and higher-order computations
    such as pattern separation and pattern completion. We demonstrate that human hippocampal
    CA3 employs sparse connectivity, in stark contrast to neocortical recurrent networks.
    Connectivity sparsifies from rodents to humans, providing a circuit architecture
    that maximizes associational power. Unitary synaptic events at human CA3–CA3 synapses
    showed both distinct species-specific and circuit-dependent properties, with high
    reliability, unique amplitude precision, and long integration times. We also identify
    differential scaling rules between hippocampal pathways from rodents to humans,
    with a moderate increase in the convergence of CA3 inputs per cell, but a marked
    increase in human mossy fiber innervation. Anatomically guided full-scale modeling
    suggests that the human brain’s sparse connectivity, expanded neuronal number,
    and reliable synaptic signaling combine to enhance the associative memory storage
    capacity of CA3. Together, our results reveal unique rules of connectivity and
    synaptic signaling in the human hippocampus, demonstrating the absolute necessity
    of human brain research and beginning to unravel the remarkable performance of
    our autoassociative memory circuits.
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
- _id: M-Shop
- _id: PreCl
- _id: ScienComp
acknowledgement: We thank Florian Marr for excellent technical assistance, Christina
  Altmutter and Julia Flor for technical support, Alois Schlögl for programming, Todor
  Asenov for development of the transportation box for human brain tissue, Tim Vogels
  for guidance on simulations, Marcus Huber for mathematical advice, and Eleftheria
  Kralli-Beller for manuscript editing. This research was supported by the Scientific
  Services Units (SSUs) of ISTA, and we are particularly grateful for assistance from
  Christoph Sommer and the Imaging and Optics Facility, Preclinical Facility, Life
  Science Facility, Miba Machine Shop, and Scientific Computing. We also acknowledge
  the excellent support of the Medical University of Vienna Department of Neurosurgery
  staff, Romana Hoeftberger and the Division of Neuropathology and Neurochemistry,
  and Gregor Kasprian and the Division of Neuroradiology and Musculoskeletal Radiology.
  The project received funding from the European Research Council (ERC) under the
  European Union’s Horizon 2020 research and innovation programme (Marie Skłodowska-Curie
  Actions Individual Fellowship no. 101026635 to J.F.W.), the Austrian Science Fund
  (FWF; grant PAT 4178023 to P.J.; grant DK W1232 to M.R.T. and J.G.D.) and the Austrian
  Academy of Sciences (DOC fellowship 26137 to M.R.T.).
article_processing_charge: No
author:
- first_name: Jake F.
  full_name: Watson, Jake F.
  last_name: Watson
- first_name: Victor
  full_name: Vargas-Barroso, Victor
  last_name: Vargas-Barroso
- first_name: Rebecca J.
  full_name: Morse-Mora, Rebecca J.
  last_name: Morse-Mora
- first_name: Andrea
  full_name: Navas-Olive, Andrea
  last_name: Navas-Olive
- first_name: Mojtaba
  full_name: Tavakoli, Mojtaba
  id: 3A0A06F4-F248-11E8-B48F-1D18A9856A87
  last_name: Tavakoli
  orcid: 0000-0002-7667-6854
- first_name: Johann G
  full_name: Danzl, Johann G
  id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
  last_name: Danzl
  orcid: 0000-0001-8559-3973
- first_name: Matthias
  full_name: Tomschik, Matthias
  last_name: Tomschik
- first_name: Karl
  full_name: Rössler, Karl
  last_name: Rössler
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Watson JF, Vargas-Barroso V, Morse-Mora RJ, et al. Human hippocampal CA3 uses
    specific functional connectivity rules for efficient associative memory. <i>bioRxiv</i>.
    doi:<a href="https://doi.org/10.1101/2024.05.02.592169">10.1101/2024.05.02.592169</a>
  apa: Watson, J. F., Vargas-Barroso, V., Morse-Mora, R. J., Navas-Olive, A., Tavakoli,
    M., Danzl, J. G., … Jonas, P. M. (n.d.). Human hippocampal CA3 uses specific functional
    connectivity rules for efficient associative memory. <i>bioRxiv</i>. <a href="https://doi.org/10.1101/2024.05.02.592169">https://doi.org/10.1101/2024.05.02.592169</a>
  chicago: Watson, Jake F., Victor Vargas-Barroso, Rebecca J. Morse-Mora, Andrea Navas-Olive,
    Mojtaba Tavakoli, Johann G Danzl, Matthias Tomschik, Karl Rössler, and Peter M
    Jonas. “Human Hippocampal CA3 Uses Specific Functional Connectivity Rules for
    Efficient Associative Memory.” <i>BioRxiv</i>, n.d. <a href="https://doi.org/10.1101/2024.05.02.592169">https://doi.org/10.1101/2024.05.02.592169</a>.
  ieee: J. F. Watson <i>et al.</i>, “Human hippocampal CA3 uses specific functional
    connectivity rules for efficient associative memory,” <i>bioRxiv</i>. .
  ista: Watson JF, Vargas-Barroso V, Morse-Mora RJ, Navas-Olive A, Tavakoli M, Danzl
    JG, Tomschik M, Rössler K, Jonas PM. Human hippocampal CA3 uses specific functional
    connectivity rules for efficient associative memory. bioRxiv, <a href="https://doi.org/10.1101/2024.05.02.592169">10.1101/2024.05.02.592169</a>.
  mla: Watson, Jake F., et al. “Human Hippocampal CA3 Uses Specific Functional Connectivity
    Rules for Efficient Associative Memory.” <i>BioRxiv</i>, doi:<a href="https://doi.org/10.1101/2024.05.02.592169">10.1101/2024.05.02.592169</a>.
  short: J.F. Watson, V. Vargas-Barroso, R.J. Morse-Mora, A. Navas-Olive, M. Tavakoli,
    J.G. Danzl, M. Tomschik, K. Rössler, P.M. Jonas, BioRxiv (n.d.).
corr_author: '1'
date_created: 2024-12-19T11:35:08Z
date_published: 2024-05-02T00:00:00Z
date_updated: 2026-10-20T08:20:04Z
day: '02'
department:
- _id: JoDa
- _id: PeJo
doi: 10.1101/2024.05.02.592169
ec_funded: 1
fulldoi: https://doi.org/10.1101/2024.05.02.592169
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1101/2024.05.02.592169
month: '05'
oa: 1
oa_version: Preprint
project:
- _id: fc2be41b-9c52-11eb-aca3-faa90aa144e9
  call_identifier: H2020
  grant_number: '101026635'
  name: Synaptic computations of the hippocampal CA3 circuitry
- _id: 26AA4EF2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232-B24
  name: Molecular Drug Targets
- _id: 6285a163-2b32-11ec-9570-8e204ca2dba5
  grant_number: '26137'
  name: Studying Organelle Structure and Function at Nanoscale Resolution with Expansion
    Microscopy
publication: bioRxiv
publication_status: draft
related_material:
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    status: public
  - id: '18879'
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    status: public
status: public
title: Human hippocampal CA3 uses specific functional connectivity rules for efficient
  associative memory
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '14257'
abstract:
- lang: eng
  text: Mapping the complex and dense arrangement of cells and their connectivity
    in brain tissue demands nanoscale spatial resolution imaging. Super-resolution
    optical microscopy excels at visualizing specific molecules and individual cells
    but fails to provide tissue context. Here we developed Comprehensive Analysis
    of Tissues across Scales (CATS), a technology to densely map brain tissue architecture
    from millimeter regional to nanometer synaptic scales in diverse chemically fixed
    brain preparations, including rodent and human. CATS uses fixation-compatible
    extracellular labeling and optical imaging, including stimulated emission depletion
    or expansion microscopy, to comprehensively delineate cellular structures. It
    enables three-dimensional reconstruction of single synapses and mapping of synaptic
    connectivity by identification and analysis of putative synaptic cleft regions.
    Applying CATS to the mouse hippocampal mossy fiber circuitry, we reconstructed
    and quantified the synaptic input and output structure of identified neurons.
    We furthermore demonstrate applicability to clinically derived human tissue samples,
    including formalin-fixed paraffin-embedded routine diagnostic specimens, for visualizing
    the cellular architecture of brain tissue in health and disease.
acknowledged_ssus:
- _id: ScienComp
- _id: Bio
- _id: PreCl
- _id: LifeSc
- _id: M-Shop
- _id: E-Lib
acknowledgement: 'We thank J. Vorlaufer, N. Agudelo-Dueñas, W. Jahr and A. Wartak
  for microscope maintenance and troubleshooting; C. Kreuzinger, A. Freeman and I.
  Erber for technical assistance; and M. Tomschik for support with obtaining human
  samples. We gratefully acknowledge E. Miguel for setting up webKnossos and M. Šuplata
  for computational support and hardware control. We are grateful to R. Shigemoto
  and B. Bickel for generous support and M. Sixt and S. Boyd (Stanford University)
  for discussions and critical reading of the paper. PSD95-HaloTag mice were kindly
  provided by S. Grant (University of Edinburgh). We acknowledge expert support by
  Institute of Science and Technology Austria’s scientific computing, imaging and
  optics, preclinical and lab support facilities and by the Miba machine shop and
  library. We gratefully acknowledge funding by the following sources: Austrian Science
  Fund (FWF) grant I3600-B27 (J.G.D.); Austrian Science Fund (FWF) grant DK W1232
  (J.G.D. and J.M.M.); Austrian Science Fund (FWF) grant Z 312-B27, Wittgenstein award
  (P.J.); Austrian Science Fund (FWF) projects I4685-B, I6565-B (SYNABS) and DOC 33-B27
  (R.H.); Gesellschaft für Forschungsförderung NÖ (NFB) grant LSC18-022 (J.G.D.);
  European Union’s Horizon 2020 research and innovation programme, European Research
  Council (ERC) grant 715508 – REVERSEAUTISM (G.N.); European Union’s Horizon 2020
  research and innovation programme, European Research Council (ERC) grant 692692
  – GIANTSYN (P.J.); Marie Skłodowska-Curie Actions Fellowship GA no. 665385 under
  the EU Horizon 2020 program (J.M.M. and J.L.); and Marie Skłodowska-Curie Actions
  Individual Fellowship no. 101026635 under the EU Horizon 2020 program (J.F.W.).'
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Julia M
  full_name: Michalska, Julia M
  id: 443DB6DE-F248-11E8-B48F-1D18A9856A87
  last_name: Michalska
  orcid: 0000-0003-3862-1235
- first_name: Julia
  full_name: Lyudchik, Julia
  id: 46E28B80-F248-11E8-B48F-1D18A9856A87
  last_name: Lyudchik
- first_name: Philipp
  full_name: Velicky, Philipp
  id: 39BDC62C-F248-11E8-B48F-1D18A9856A87
  last_name: Velicky
  orcid: 0000-0002-2340-7431
- first_name: Hana
  full_name: Korinkova, Hana
  id: ee3cb6ca-ec98-11ea-ae11-ff703e2254ed
  last_name: Korinkova
- first_name: Jake
  full_name: Watson, Jake
  id: 63836096-4690-11EA-BD4E-32803DDC885E
  last_name: Watson
  orcid: 0000-0002-8698-3823
- first_name: Alban
  full_name: Cenameri, Alban
  id: 9ac8f577-2357-11eb-997a-e566c5550886
  last_name: Cenameri
- first_name: Christoph M
  full_name: Sommer, Christoph M
  id: 4DF26D8C-F248-11E8-B48F-1D18A9856A87
  last_name: Sommer
  orcid: 0000-0003-1216-9105
- first_name: Nicole
  full_name: Amberg, Nicole
  id: 4CD6AAC6-F248-11E8-B48F-1D18A9856A87
  last_name: Amberg
  orcid: 0000-0002-3183-8207
- first_name: Alessandro
  full_name: Venturino, Alessandro
  id: 41CB84B2-F248-11E8-B48F-1D18A9856A87
  last_name: Venturino
  orcid: 0000-0003-2356-9403
- first_name: Karl
  full_name: Roessler, Karl
  last_name: Roessler
- first_name: Thomas
  full_name: Czech, Thomas
  last_name: Czech
- first_name: Romana
  full_name: Höftberger, Romana
  last_name: Höftberger
- first_name: Sandra
  full_name: Siegert, Sandra
  id: 36ACD32E-F248-11E8-B48F-1D18A9856A87
  last_name: Siegert
  orcid: 0000-0001-8635-0877
- first_name: Gaia
  full_name: Novarino, Gaia
  id: 3E57A680-F248-11E8-B48F-1D18A9856A87
  last_name: Novarino
  orcid: 0000-0002-7673-7178
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Johann G
  full_name: Danzl, Johann G
  id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
  last_name: Danzl
  orcid: 0000-0001-8559-3973
citation:
  ama: Michalska JM, Lyudchik J, Velicky P, et al. Imaging brain tissue architecture
    across millimeter to nanometer scales. <i>Nature Biotechnology</i>. 2024;42:1051-1064.
    doi:<a href="https://doi.org/10.1038/s41587-023-01911-8">10.1038/s41587-023-01911-8</a>
  apa: Michalska, J. M., Lyudchik, J., Velicky, P., Korinkova, H., Watson, J., Cenameri,
    A., … Danzl, J. G. (2024). Imaging brain tissue architecture across millimeter
    to nanometer scales. <i>Nature Biotechnology</i>. Springer Nature. <a href="https://doi.org/10.1038/s41587-023-01911-8">https://doi.org/10.1038/s41587-023-01911-8</a>
  chicago: Michalska, Julia M, Julia Lyudchik, Philipp Velicky, Hana Korinkova, Jake
    Watson, Alban Cenameri, Christoph M Sommer, et al. “Imaging Brain Tissue Architecture
    across Millimeter to Nanometer Scales.” <i>Nature Biotechnology</i>. Springer
    Nature, 2024. <a href="https://doi.org/10.1038/s41587-023-01911-8">https://doi.org/10.1038/s41587-023-01911-8</a>.
  ieee: J. M. Michalska <i>et al.</i>, “Imaging brain tissue architecture across millimeter
    to nanometer scales,” <i>Nature Biotechnology</i>, vol. 42. Springer Nature, pp.
    1051–1064, 2024.
  ista: Michalska JM, Lyudchik J, Velicky P, Korinkova H, Watson J, Cenameri A, Sommer
    CM, Amberg N, Venturino A, Roessler K, Czech T, Höftberger R, Siegert S, Novarino
    G, Jonas PM, Danzl JG. 2024. Imaging brain tissue architecture across millimeter
    to nanometer scales. Nature Biotechnology. 42, 1051–1064.
  mla: Michalska, Julia M., et al. “Imaging Brain Tissue Architecture across Millimeter
    to Nanometer Scales.” <i>Nature Biotechnology</i>, vol. 42, Springer Nature, 2024,
    pp. 1051–64, doi:<a href="https://doi.org/10.1038/s41587-023-01911-8">10.1038/s41587-023-01911-8</a>.
  short: J.M. Michalska, J. Lyudchik, P. Velicky, H. Korinkova, J. Watson, A. Cenameri,
    C.M. Sommer, N. Amberg, A. Venturino, K. Roessler, T. Czech, R. Höftberger, S.
    Siegert, G. Novarino, P.M. Jonas, J.G. Danzl, Nature Biotechnology 42 (2024) 1051–1064.
corr_author: '1'
das_tickbox: '1'
date_created: 2023-09-03T22:01:15Z
date_published: 2024-07-01T00:00:00Z
date_updated: 2026-10-21T08:36:20Z
day: '01'
ddc:
- '570'
department:
- _id: SaSi
- _id: GaNo
- _id: PeJo
- _id: JoDa
- _id: Bio
- _id: RySh
doi: 10.1038/s41587-023-01911-8
ec_funded: 1
external_id:
  isi:
  - '001065254200001'
  pmid:
  - '37653226'
file:
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  checksum: 57d5fafb16f02dcb9f7dddb1bd7e2a71
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  date_created: 2025-01-09T07:48:01Z
  date_updated: 2025-01-09T07:48:01Z
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  file_size: 26065165
  relation: main_file
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file_date_updated: 2025-01-09T07:48:01Z
fulldoi: https://doi.org/10.1038/s41587-023-01911-8
has_accepted_license: '1'
intvolume: '        42'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 1051-1064
pmid: 1
project:
- _id: 265CB4D0-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I03600
  name: Optical control of synaptic function via adhesion molecules
- _id: 2548AE96-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232
  name: Molecular Drug Targets
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
- _id: 23889792-32DE-11EA-91FC-C7463DDC885E
  grant_number: LS18-022
  name: High content imaging to decode human immune cell interactions in health and
    allergic disease
- _id: 25444568-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '715508'
  name: Probing the Reversibility of Autism Spectrum Disorders by Employing in vivo
    and in vitro Models
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
- _id: fc2be41b-9c52-11eb-aca3-faa90aa144e9
  call_identifier: H2020
  grant_number: '101026635'
  name: Synaptic computations of the hippocampal CA3 circuitry
publication: Nature Biotechnology
publication_identifier:
  eissn:
  - 1546-1696
  issn:
  - 1087-0156
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
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    url: https://github.com/danzllab/CATS
  record:
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    relation: dissertation_contains
    status: deleted
  - id: '13126'
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    status: public
researchdata_availability: yes
scopus_import: '1'
status: public
supplementarymaterial: yes
title: Imaging brain tissue architecture across millimeter to nanometer scales
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 42
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '14843'
abstract:
- lang: eng
  text: The coupling between Ca2+ channels and release sensors is a key factor defining
    the signaling properties of a synapse. However, the coupling nanotopography at
    many synapses remains unknown, and it is unclear how it changes during development.
    To address these questions, we examined coupling at the cerebellar inhibitory
    basket cell (BC)-Purkinje cell (PC) synapse. Biophysical analysis of transmission
    by paired recording and intracellular pipette perfusion revealed that the effects
    of exogenous Ca2+ chelators decreased during development, despite constant reliance
    of release on P/Q-type Ca2+ channels. Structural analysis by freeze-fracture replica
    labeling (FRL) and transmission electron microscopy (EM) indicated that presynaptic
    P/Q-type Ca2+ channels formed nanoclusters throughout development, whereas docked
    vesicles were only clustered at later developmental stages. Modeling suggested
    a developmental transformation from a more random to a more clustered coupling
    nanotopography. Thus, presynaptic signaling developmentally approaches a point-to-point
    configuration, optimizing speed, reliability, and energy efficiency of synaptic
    transmission.
acknowledged_ssus:
- _id: EM-Fac
- _id: PreCl
- _id: M-Shop
acknowledgement: We thank Drs. David DiGregorio and Erwin Neher for critically reading
  an earlier version of the manuscript, Ralf Schneggenburger for helpful discussions,
  Benjamin Suter and Katharina Lichter for support with image analysis, Chris Wojtan
  for advice on numerical solution of partial differential equations, Maria Reva for
  help with Ripley analysis, Alois Schlögl for programming, and Akari Hagiwara and
  Toshihisa Ohtsuka for anti-ELKS antibody. We are grateful to Florian Marr, Christina
  Altmutter, and Vanessa Zheden for excellent technical assistance and to Eleftheria
  Kralli-Beller for manuscript editing. This research was supported by the Scientific
  Services Units (SSUs) of ISTA (Electron Microscopy Facility, Preclinical Facility,
  and Machine Shop). The project received funding from the European Research Council
  (ERC) under the European Union’s Horizon 2020 research and innovation program (grant
  agreement no. 692692), the Fonds zur Förderung der Wissenschaftlichen Forschung
  (Z 312-B27, Wittgenstein award; P 36232-B), all to P.J., and a DOC fellowship of
  the Austrian Academy of Sciences to J.-J.C.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: JingJing
  full_name: Chen, JingJing
  id: 2C4E65C8-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Walter
  full_name: Kaufmann, Walter
  id: 3F99E422-F248-11E8-B48F-1D18A9856A87
  last_name: Kaufmann
  orcid: 0000-0001-9735-5315
- first_name: Chong
  full_name: Chen, Chong
  id: 3DFD581A-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Itaru
  full_name: Arai, Itaru
  id: 32A73F6C-F248-11E8-B48F-1D18A9856A87
  last_name: Arai
- first_name: Olena
  full_name: Kim, Olena
  id: 3F8ABDDA-F248-11E8-B48F-1D18A9856A87
  last_name: Kim
  orcid: 0000-0003-2344-1039
- first_name: Ryuichi
  full_name: Shigemoto, Ryuichi
  id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
  last_name: Shigemoto
  orcid: 0000-0001-8761-9444
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Chen J, Kaufmann W, Chen C, et al. Developmental transformation of Ca2+ channel-vesicle
    nanotopography at a central GABAergic synapse. <i>Neuron</i>. 2024;112(5):755-771.e9.
    doi:<a href="https://doi.org/10.1016/j.neuron.2023.12.002">10.1016/j.neuron.2023.12.002</a>
  apa: Chen, J., Kaufmann, W., Chen, C., Arai,  itaru, Kim, O., Shigemoto, R., &#38;
    Jonas, P. M. (2024). Developmental transformation of Ca2+ channel-vesicle nanotopography
    at a central GABAergic synapse. <i>Neuron</i>. Elsevier. <a href="https://doi.org/10.1016/j.neuron.2023.12.002">https://doi.org/10.1016/j.neuron.2023.12.002</a>
  chicago: Chen, JingJing, Walter Kaufmann, Chong Chen, itaru Arai, Olena Kim, Ryuichi
    Shigemoto, and Peter M Jonas. “Developmental Transformation of Ca2+ Channel-Vesicle
    Nanotopography at a Central GABAergic Synapse.” <i>Neuron</i>. Elsevier, 2024.
    <a href="https://doi.org/10.1016/j.neuron.2023.12.002">https://doi.org/10.1016/j.neuron.2023.12.002</a>.
  ieee: J. Chen <i>et al.</i>, “Developmental transformation of Ca2+ channel-vesicle
    nanotopography at a central GABAergic synapse,” <i>Neuron</i>, vol. 112, no. 5.
    Elsevier, p. 755–771.e9, 2024.
  ista: Chen J, Kaufmann W, Chen C, Arai  itaru, Kim O, Shigemoto R, Jonas PM. 2024.
    Developmental transformation of Ca2+ channel-vesicle nanotopography at a central
    GABAergic synapse. Neuron. 112(5), 755–771.e9.
  mla: Chen, JingJing, et al. “Developmental Transformation of Ca2+ Channel-Vesicle
    Nanotopography at a Central GABAergic Synapse.” <i>Neuron</i>, vol. 112, no. 5,
    Elsevier, 2024, p. 755–771.e9, doi:<a href="https://doi.org/10.1016/j.neuron.2023.12.002">10.1016/j.neuron.2023.12.002</a>.
  short: J. Chen, W. Kaufmann, C. Chen,  itaru Arai, O. Kim, R. Shigemoto, P.M. Jonas,
    Neuron 112 (2024) 755–771.e9.
corr_author: '1'
date_created: 2024-01-21T23:00:56Z
date_published: 2024-03-06T00:00:00Z
date_updated: 2026-10-25T23:31:20Z
day: '06'
ddc:
- '570'
department:
- _id: PeJo
- _id: EM-Fac
- _id: RySh
doi: 10.1016/j.neuron.2023.12.002
ec_funded: 1
external_id:
  isi:
  - '001202925700001'
  pmid:
  - '38215739'
file:
- access_level: open_access
  checksum: 30098b4f0209556ddfb3540a23d07ca5
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  creator: dernst
  date_created: 2025-04-23T14:02:08Z
  date_updated: 2025-04-23T14:02:08Z
  file_id: '19614'
  file_name: 2024_Neuron_Chen.pdf
  file_size: 8192355
  relation: main_file
  success: 1
file_date_updated: 2025-04-23T14:02:08Z
fulldoi: https://doi.org/10.1016/j.neuron.2023.12.002
has_accepted_license: '1'
intvolume: '       112'
isi: 1
issue: '5'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: 755-771.e9
pmid: 1
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
- _id: bd88be38-d553-11ed-ba76-81d5a70a6ef5
  grant_number: P36232
  name: Mechanisms of GABA release in hippocampal circuits
- _id: 26B66A3E-B435-11E9-9278-68D0E5697425
  grant_number: '25383'
  name: Development of nanodomain coupling between Ca2+ channels and release sensors
    at a central inhibitory synapse
publication: Neuron
publication_identifier:
  eissn:
  - 1097-4199
  issn:
  - 0896-6273
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
  link:
  - description: News on ISTA Website
    relation: press_release
    url: https://ista.ac.at/en/news/synapses-brought-to-the-point/
  record:
  - id: '15101'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Developmental transformation of Ca2+ channel-vesicle nanotopography at a central
  GABAergic synapse
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 112
year: '2024'
...
---
APC_amount: 5887,8 EUR
OA_place: publisher
OA_type: hybrid
_id: '15084'
abstract:
- lang: eng
  text: "GABAB receptor (GBR) activation inhibits neurotransmitter release in axon
    terminals in the brain, except in medial habenula (MHb) terminals, which show
    robust potentiation. However, mechanisms underlying this enigmatic potentiation
    remain elusive. Here, we report that GBR activation on MHb terminals induces an
    activity-dependent transition from a facilitating, tonic to a depressing, phasic
    neurotransmitter release mode. This transition is accompanied by a 4.1-fold increase
    in readily releasable vesicle pool (RRP) size and a 3.5-fold increase of docked
    synaptic vesicles (SVs) at the presynaptic active zone (AZ). Strikingly, the depressing
    phasic release exhibits looser coupling distance than the tonic release. Furthermore,
    the tonic and phasic release are selectively affected by deletion of synaptoporin
    (SPO) and Ca\r\n            <jats:sup>2+</jats:sup>\r\n            -dependent
    activator protein for secretion 2 (CAPS2), respectively. SPO modulates augmentation,
    the short-term plasticity associated with tonic release, and CAPS2 retains the
    increased RRP for initial responses in phasic response trains. The cytosolic protein
    CAPS2 showed a SV-associated distribution similar to the vesicular transmembrane
    protein SPO, and they were colocalized in the same terminals. We developed the
    “Flash and Freeze-fracture” method, and revealed the release of SPO-associated
    vesicles in both tonic and phasic modes and activity-dependent recruitment of
    CAPS2 to the AZ during phasic release, which lasted several minutes. Overall,
    these results indicate that GBR activation translocates CAPS2 to the AZ along
    with the fusion of CAPS2-associated SVs, contributing to persistency of the RRP
    increase. Thus, we identified structural and molecular mechanisms underlying tonic
    and phasic neurotransmitter release and their transition by GBR activation in
    MHb terminals."
acknowledged_ssus:
- _id: M-Shop
- _id: PreCl
- _id: EM-Fac
acknowledgement: We thank Erwin Neher and Ipe Ninan for critical comments on the manuscript.
  This project has received funding from the European Research Council (ERC) and European
  Commission, under the European Union’s Horizon 2020 research and innovation program
  (ERC grant agreement no. 694539 to R.S. and the Marie Skłodowska-Curie grant agreement
  no. 665385 to C.Ö.). This study was supported by the Cooperative Study Program of
  Center for Animal Resources and Collaborative Study of NINS. We thank Kohgaku Eguchi
  for statistical analysis, Yu Kasugai for additional EM imaging, Robert Beattie for
  the design of the slice recovery chamber for Flash and Freeze experiments, Todor
  Asenov from the ISTA machine shop for custom part preparations for high-pressure
  freezing, the ISTA preclinical facility for animal caretaking, and the ISTA EM facilities
  for technical support.
article_number: e2301449121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Peter
  full_name: Koppensteiner, Peter
  id: 3B8B25A8-F248-11E8-B48F-1D18A9856A87
  last_name: Koppensteiner
  orcid: 0000-0002-3509-1948
- first_name: Pradeep
  full_name: Bhandari, Pradeep
  id: 45EDD1BC-F248-11E8-B48F-1D18A9856A87
  last_name: Bhandari
  orcid: 0000-0003-0863-4481
- first_name: Hüseyin C
  full_name: Önal, Hüseyin C
  id: 4659D740-F248-11E8-B48F-1D18A9856A87
  last_name: Önal
  orcid: 0000-0002-2771-2011
- first_name: Carolina
  full_name: Borges Merjane, Carolina
  id: 4305C450-F248-11E8-B48F-1D18A9856A87
  last_name: Borges Merjane
  orcid: 0000-0003-0005-401X
- first_name: Elodie
  full_name: Le Monnier, Elodie
  id: 3B59276A-F248-11E8-B48F-1D18A9856A87
  last_name: Le Monnier
- first_name: Utsa
  full_name: Roy, Utsa
  id: 4d26cf11-5355-11ee-ae5a-eb05e255b9b2
  last_name: Roy
- first_name: Yukihiro
  full_name: Nakamura, Yukihiro
  last_name: Nakamura
- first_name: Tetsushi
  full_name: Sadakata, Tetsushi
  last_name: Sadakata
- first_name: Makoto
  full_name: Sanbo, Makoto
  last_name: Sanbo
- first_name: Masumi
  full_name: Hirabayashi, Masumi
  last_name: Hirabayashi
- first_name: JeongSeop
  full_name: Rhee, JeongSeop
  last_name: Rhee
- first_name: Nils
  full_name: Brose, Nils
  last_name: Brose
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Ryuichi
  full_name: Shigemoto, Ryuichi
  id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
  last_name: Shigemoto
  orcid: 0000-0001-8761-9444
citation:
  ama: Koppensteiner P, Bhandari P, Önal C, et al. GABAB receptors induce phasic release
    from medial habenula terminals through activity-dependent recruitment of release-ready
    vesicles. <i>Proceedings of the National Academy of Sciences of the United States
    of America</i>. 2024;121(8). doi:<a href="https://doi.org/10.1073/pnas.2301449121">10.1073/pnas.2301449121</a>
  apa: Koppensteiner, P., Bhandari, P., Önal, C., Borges Merjane, C., Le Monnier,
    E., Roy, U., … Shigemoto, R. (2024). GABAB receptors induce phasic release from
    medial habenula terminals through activity-dependent recruitment of release-ready
    vesicles. <i>Proceedings of the National Academy of Sciences of the United States
    of America</i>. National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2301449121">https://doi.org/10.1073/pnas.2301449121</a>
  chicago: Koppensteiner, Peter, Pradeep Bhandari, Cihan Önal, Carolina Borges Merjane,
    Elodie Le Monnier, Utsa Roy, Yukihiro Nakamura, et al. “GABAB Receptors Induce
    Phasic Release from Medial Habenula Terminals through Activity-Dependent Recruitment
    of Release-Ready Vesicles.” <i>Proceedings of the National Academy of Sciences
    of the United States of America</i>. National Academy of Sciences, 2024. <a href="https://doi.org/10.1073/pnas.2301449121">https://doi.org/10.1073/pnas.2301449121</a>.
  ieee: P. Koppensteiner <i>et al.</i>, “GABAB receptors induce phasic release from
    medial habenula terminals through activity-dependent recruitment of release-ready
    vesicles,” <i>Proceedings of the National Academy of Sciences of the United States
    of America</i>, vol. 121, no. 8. National Academy of Sciences, 2024.
  ista: Koppensteiner P, Bhandari P, Önal C, Borges Merjane C, Le Monnier E, Roy U,
    Nakamura Y, Sadakata T, Sanbo M, Hirabayashi M, Rhee J, Brose N, Jonas PM, Shigemoto
    R. 2024. GABAB receptors induce phasic release from medial habenula terminals
    through activity-dependent recruitment of release-ready vesicles. Proceedings
    of the National Academy of Sciences of the United States of America. 121(8), e2301449121.
  mla: Koppensteiner, Peter, et al. “GABAB Receptors Induce Phasic Release from Medial
    Habenula Terminals through Activity-Dependent Recruitment of Release-Ready Vesicles.”
    <i>Proceedings of the National Academy of Sciences of the United States of America</i>,
    vol. 121, no. 8, e2301449121, National Academy of Sciences, 2024, doi:<a href="https://doi.org/10.1073/pnas.2301449121">10.1073/pnas.2301449121</a>.
  short: P. Koppensteiner, P. Bhandari, C. Önal, C. Borges Merjane, E. Le Monnier,
    U. Roy, Y. Nakamura, T. Sadakata, M. Sanbo, M. Hirabayashi, J. Rhee, N. Brose,
    P.M. Jonas, R. Shigemoto, Proceedings of the National Academy of Sciences of the
    United States of America 121 (2024).
corr_author: '1'
das_tickbox: '1'
date_created: 2024-03-05T09:23:55Z
date_published: 2024-02-20T00:00:00Z
date_updated: 2026-10-25T23:31:31Z
day: '20'
ddc:
- '570'
department:
- _id: RySh
- _id: PeJo
doi: 10.1073/pnas.2301449121
ec_funded: 1
external_id:
  isi:
  - '001208567300006'
  pmid:
  - '38346189'
file:
- access_level: open_access
  checksum: b25b2a057c266ff317a48b0d54d6fc8a
  content_type: application/pdf
  creator: dernst
  date_created: 2024-03-12T13:42:42Z
  date_updated: 2024-03-12T13:42:42Z
  file_id: '15110'
  file_name: 2024_PNAS_Koppensteiner.pdf
  file_size: 13648221
  relation: main_file
  success: 1
file_date_updated: 2024-03-12T13:42:42Z
fulldoi: https://doi.org/10.1073/pnas.2301449121
has_accepted_license: '1'
intvolume: '       121'
isi: 1
issue: '8'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25CA28EA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '694539'
  name: 'In situ analysis of single channel subunit composition in neurons: physiological
    implication in synaptic plasticity and behaviour'
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
publication: Proceedings of the National Academy of Sciences of the United States
  of America
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
  link:
  - description: News on ISTA Website
    relation: press_release
    url: https://ista.ac.at/en/news/neuronal-insights-flash-and-freeze-fracture/
  record:
  - id: '13173'
    relation: research_data
    status: public
  - id: '19271'
    relation: dissertation_contains
    status: public
researchdata_availability: yes
scopus_import: '1'
status: public
supplementarymaterial: yes
title: GABAB receptors induce phasic release from medial habenula terminals through
  activity-dependent recruitment of release-ready vesicles
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 121
year: '2024'
...
---
_id: '12759'
abstract:
- lang: eng
  text: Stereological methods for estimating the 3D particle size and density from
    2D projections are essential to many research fields. These methods are, however,
    prone to errors arising from undetected particle profiles due to sectioning and
    limited resolution, known as ‘lost caps’. A potential solution developed by Keiding,
    Jensen, and Ranek in 1972, which we refer to as the Keiding model, accounts for
    lost caps by quantifying the smallest detectable profile in terms of its limiting
    ‘cap angle’ (ϕ), a size-independent measure of a particle’s distance from the
    section surface. However, this simple solution has not been widely adopted nor
    tested. Rather, model-independent design-based stereological methods, which do
    not explicitly account for lost caps, have come to the fore. Here, we provide
    the first experimental validation of the Keiding model by comparing the size and
    density of particles estimated from 2D projections with direct measurement from
    3D EM reconstructions of the same tissue. We applied the Keiding model to estimate
    the size and density of somata, nuclei and vesicles in the cerebellum of mice
    and rats, where high packing density can be problematic for design-based methods.
    Our analysis reveals a Gaussian distribution for ϕ rather than a single value.
    Nevertheless, curve fits of the Keiding model to the 2D diameter distribution
    accurately estimate the mean ϕ and 3D diameter distribution. While systematic
    testing using simulations revealed an upper limit to determining ϕ, our analysis
    shows that estimated ϕ can be used to determine the 3D particle density from the
    2D density under a wide range of conditions, and this method is potentially more
    accurate than minimum-size-based lost-cap corrections and disector methods. Our
    results show the Keiding model provides an efficient means of accurately estimating
    the size and density of particles from 2D projections even under conditions of
    a high density.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: "We thank the IST Austria Electron Microscopy Facility for technical
  support, and Diccon Coyle, Andrea Lőrincz and Zoltan Nusser for their helpful comments
  and discussions.\r\nFunding for JSR and RAS was from the Wellcome Trust (203048;
  224499; https://\r\nwellcome.org/). RAS is in receipt of a Wellcome Trust Principal
  Research Fellowship (224499).\r\nFunding for CBM and PJ was from Fond zur Förderung
  der Wissenschaftlichen Forschung (V\r\n739-B27 Elise-Richter Programme to CBM, Z
  312-B27 Wittgenstein Award to PJ; \r\nhttps://www.fwf.ac.at). PJ received funding
  from the European Research Council (ERC; https://erc.europa.eu) under the European
  Union’s Horizon 2020 research and innovation programme (grant agreement no. 692692).
  NH was supported by a European\r\nResearch Council Advanced Grant (ERC-AG787157)."
article_number: e0277148
article_processing_charge: No
article_type: original
author:
- first_name: Jason Seth
  full_name: Rothman, Jason Seth
  last_name: Rothman
- first_name: Carolina
  full_name: Borges Merjane, Carolina
  id: 4305C450-F248-11E8-B48F-1D18A9856A87
  last_name: Borges Merjane
  orcid: 0000-0003-0005-401X
- first_name: Noemi
  full_name: Holderith, Noemi
  last_name: Holderith
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: R.
  full_name: Angus Silver, R.
  last_name: Angus Silver
citation:
  ama: Rothman JS, Borges Merjane C, Holderith N, Jonas PM, Angus Silver R. Validation
    of a stereological method for estimating particle size and density from 2D projections
    with high accuracy. <i>PLoS ONE</i>. 2023;18(3 March). doi:<a href="https://doi.org/10.1371/journal.pone.0277148">10.1371/journal.pone.0277148</a>
  apa: Rothman, J. S., Borges Merjane, C., Holderith, N., Jonas, P. M., &#38; Angus
    Silver, R. (2023). Validation of a stereological method for estimating particle
    size and density from 2D projections with high accuracy. <i>PLoS ONE</i>. Public
    Library of Science. <a href="https://doi.org/10.1371/journal.pone.0277148">https://doi.org/10.1371/journal.pone.0277148</a>
  chicago: Rothman, Jason Seth, Carolina Borges Merjane, Noemi Holderith, Peter M
    Jonas, and R. Angus Silver. “Validation of a Stereological Method for Estimating
    Particle Size and Density from 2D Projections with High Accuracy.” <i>PLoS ONE</i>.
    Public Library of Science, 2023. <a href="https://doi.org/10.1371/journal.pone.0277148">https://doi.org/10.1371/journal.pone.0277148</a>.
  ieee: J. S. Rothman, C. Borges Merjane, N. Holderith, P. M. Jonas, and R. Angus
    Silver, “Validation of a stereological method for estimating particle size and
    density from 2D projections with high accuracy,” <i>PLoS ONE</i>, vol. 18, no.
    3 March. Public Library of Science, 2023.
  ista: Rothman JS, Borges Merjane C, Holderith N, Jonas PM, Angus Silver R. 2023.
    Validation of a stereological method for estimating particle size and density
    from 2D projections with high accuracy. PLoS ONE. 18(3 March), e0277148.
  mla: Rothman, Jason Seth, et al. “Validation of a Stereological Method for Estimating
    Particle Size and Density from 2D Projections with High Accuracy.” <i>PLoS ONE</i>,
    vol. 18, no. 3 March, e0277148, Public Library of Science, 2023, doi:<a href="https://doi.org/10.1371/journal.pone.0277148">10.1371/journal.pone.0277148</a>.
  short: J.S. Rothman, C. Borges Merjane, N. Holderith, P.M. Jonas, R. Angus Silver,
    PLoS ONE 18 (2023).
date_created: 2023-03-26T22:01:07Z
date_published: 2023-03-17T00:00:00Z
date_updated: 2025-04-23T08:50:50Z
day: '17'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1371/journal.pone.0277148
ec_funded: 1
external_id:
  isi:
  - '001024737400001'
  pmid:
  - '36930689'
file:
- access_level: open_access
  checksum: 2380331ec27cc87808826fc64419ac1c
  content_type: application/pdf
  creator: dernst
  date_created: 2023-03-27T06:51:09Z
  date_updated: 2023-03-27T06:51:09Z
  file_id: '12770'
  file_name: 2023_PLoSOne_Rothman.pdf
  file_size: 7290413
  relation: main_file
  success: 1
file_date_updated: 2023-03-27T06:51:09Z
fulldoi: https://doi.org/10.1371/journal.pone.0277148
has_accepted_license: '1'
intvolume: '        18'
isi: 1
issue: 3 March
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
- _id: 2696E7FE-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: V00739
  name: Structural plasticity at mossy fiber-CA3 synapses
publication: PLoS ONE
publication_identifier:
  eissn:
  - 1932-6203
publication_status: published
publisher: Public Library of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: Validation of a stereological method for estimating particle size and density
  from 2D projections with high accuracy
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 18
year: '2023'
...
---
OA_place: publisher
OA_type: hybrid
_id: '13267'
abstract:
- lang: eng
  text: Three-dimensional (3D) reconstruction of living brain tissue down to an individual
    synapse level would create opportunities for decoding the dynamics and structure–function
    relationships of the brain’s complex and dense information processing network;
    however, this has been hindered by insufficient 3D resolution, inadequate signal-to-noise
    ratio and prohibitive light burden in optical imaging, whereas electron microscopy
    is inherently static. Here we solved these challenges by developing an integrated
    optical/machine-learning technology, LIONESS (live information-optimized nanoscopy
    enabling saturated segmentation). This leverages optical modifications to stimulated
    emission depletion microscopy in comprehensively, extracellularly labeled tissue
    and previous information on sample structure via machine learning to simultaneously
    achieve isotropic super-resolution, high signal-to-noise ratio and compatibility
    with living tissue. This allows dense deep-learning-based instance segmentation
    and 3D reconstruction at a synapse level, incorporating molecular, activity and
    morphodynamic information. LIONESS opens up avenues for studying the dynamic functional
    (nano-)architecture of living brain tissue.
acknowledged_ssus:
- _id: ScienComp
- _id: Bio
- _id: PreCl
- _id: E-Lib
- _id: LifeSc
- _id: M-Shop
acknowledgement: "We thank J. Vorlaufer, N. Agudelo and A. Wartak for microscope maintenance
  and troubleshooting, C. Kreuzinger and A. Freeman for technical assistance, M. Šuplata
  for hardware control support and M. Cunha dos Santos for initial exploration of
  software. We\r\nthank P. Henderson for advice on deep-learning training and M. Sixt,
  S. Boyd and T. Weiss for discussions and critical reading of the manuscript. L.
  Lavis (Janelia Research Campus) generously provided the JF585-HaloTag ligand. We
  acknowledge expert support by IST\r\nAustria’s scientific computing, imaging and
  optics, preclinical, library and laboratory support facilities and by the Miba machine
  shop. We gratefully acknowledge funding by the following sources: Austrian Science
  Fund (F.W.F.) grant no. I3600-B27 (J.G.D.), grant no. DK W1232\r\n(J.G.D. and J.M.M.)
  and grant no. Z 312-B27, Wittgenstein award (P.J.); the Gesellschaft für Forschungsförderung
  NÖ grant no. LSC18-022 (J.G.D.); an ISTA Interdisciplinary project grant (J.G.D.
  and B.B.); the European Union’s Horizon 2020 research and innovation programme,\r\nMarie-Skłodowska
  Curie grant 665385 (J.M.M. and J.L.); the European Union’s Horizon 2020 research
  and innovation programme, European Research Council grant no. 715767, MATERIALIZABLE
  (B.B.); grant no. 715508, REVERSEAUTISM (G.N.); grant no. 695568, SYNNOVATE (S.G.N.G.);
  and grant no. 692692, GIANTSYN (P.J.); the Simons\r\nFoundation Autism Research
  Initiative grant no. 529085 (S.G.N.G.); the Wellcome Trust Technology Development
  grant no. 202932 (S.G.N.G.); the Marie Skłodowska-Curie Actions Individual Fellowship
  no. 101026635 under the EU Horizon 2020 program (J.F.W.);\r\nthe Human Frontier
  Science Program postdoctoral fellowship LT000557/2018 (W.J.); and the National Science
  Foundation grant no. IIS-1835231 (H.P.) and NCS-FO-2124179 (H.P.)."
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Philipp
  full_name: Velicky, Philipp
  id: 39BDC62C-F248-11E8-B48F-1D18A9856A87
  last_name: Velicky
  orcid: 0000-0002-2340-7431
- first_name: Eder
  full_name: Miguel Villalba, Eder
  id: 3FB91342-F248-11E8-B48F-1D18A9856A87
  last_name: Miguel Villalba
  orcid: 0000-0001-5665-0430
- first_name: Julia M
  full_name: Michalska, Julia M
  id: 443DB6DE-F248-11E8-B48F-1D18A9856A87
  last_name: Michalska
  orcid: 0000-0003-3862-1235
- first_name: Julia
  full_name: Lyudchik, Julia
  id: 46E28B80-F248-11E8-B48F-1D18A9856A87
  last_name: Lyudchik
- first_name: Donglai
  full_name: Wei, Donglai
  last_name: Wei
- first_name: Zudi
  full_name: Lin, Zudi
  last_name: Lin
- first_name: Jake
  full_name: Watson, Jake
  id: 63836096-4690-11EA-BD4E-32803DDC885E
  last_name: Watson
  orcid: 0000-0002-8698-3823
- first_name: Jakob
  full_name: Troidl, Jakob
  last_name: Troidl
- first_name: Johanna
  full_name: Beyer, Johanna
  last_name: Beyer
- first_name: Yoav
  full_name: Ben Simon, Yoav
  id: 43DF3136-F248-11E8-B48F-1D18A9856A87
  last_name: Ben Simon
- first_name: Christoph M
  full_name: Sommer, Christoph M
  id: 4DF26D8C-F248-11E8-B48F-1D18A9856A87
  last_name: Sommer
  orcid: 0000-0003-1216-9105
- first_name: Wiebke
  full_name: Jahr, Wiebke
  id: 425C1CE8-F248-11E8-B48F-1D18A9856A87
  last_name: Jahr
  orcid: 0000-0003-0201-2315
- first_name: Alban
  full_name: Cenameri, Alban
  id: 9ac8f577-2357-11eb-997a-e566c5550886
  last_name: Cenameri
- first_name: Johannes
  full_name: Broichhagen, Johannes
  last_name: Broichhagen
- first_name: Seth G.N.
  full_name: Grant, Seth G.N.
  last_name: Grant
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Gaia
  full_name: Novarino, Gaia
  id: 3E57A680-F248-11E8-B48F-1D18A9856A87
  last_name: Novarino
  orcid: 0000-0002-7673-7178
- first_name: Hanspeter
  full_name: Pfister, Hanspeter
  last_name: Pfister
- first_name: Bernd
  full_name: Bickel, Bernd
  id: 49876194-F248-11E8-B48F-1D18A9856A87
  last_name: Bickel
  orcid: 0000-0001-6511-9385
- first_name: Johann G
  full_name: Danzl, Johann G
  id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
  last_name: Danzl
  orcid: 0000-0001-8559-3973
citation:
  ama: Velicky P, Miguel Villalba E, Michalska JM, et al. Dense 4D nanoscale reconstruction
    of living brain tissue. <i>Nature Methods</i>. 2023;20:1256-1265. doi:<a href="https://doi.org/10.1038/s41592-023-01936-6">10.1038/s41592-023-01936-6</a>
  apa: Velicky, P., Miguel Villalba, E., Michalska, J. M., Lyudchik, J., Wei, D.,
    Lin, Z., … Danzl, J. G. (2023). Dense 4D nanoscale reconstruction of living brain
    tissue. <i>Nature Methods</i>. Springer Nature. <a href="https://doi.org/10.1038/s41592-023-01936-6">https://doi.org/10.1038/s41592-023-01936-6</a>
  chicago: Velicky, Philipp, Eder Miguel Villalba, Julia M Michalska, Julia Lyudchik,
    Donglai Wei, Zudi Lin, Jake Watson, et al. “Dense 4D Nanoscale Reconstruction
    of Living Brain Tissue.” <i>Nature Methods</i>. Springer Nature, 2023. <a href="https://doi.org/10.1038/s41592-023-01936-6">https://doi.org/10.1038/s41592-023-01936-6</a>.
  ieee: P. Velicky <i>et al.</i>, “Dense 4D nanoscale reconstruction of living brain
    tissue,” <i>Nature Methods</i>, vol. 20. Springer Nature, pp. 1256–1265, 2023.
  ista: Velicky P, Miguel Villalba E, Michalska JM, Lyudchik J, Wei D, Lin Z, Watson
    J, Troidl J, Beyer J, Ben Simon Y, Sommer CM, Jahr W, Cenameri A, Broichhagen
    J, Grant SGN, Jonas PM, Novarino G, Pfister H, Bickel B, Danzl JG. 2023. Dense
    4D nanoscale reconstruction of living brain tissue. Nature Methods. 20, 1256–1265.
  mla: Velicky, Philipp, et al. “Dense 4D Nanoscale Reconstruction of Living Brain
    Tissue.” <i>Nature Methods</i>, vol. 20, Springer Nature, 2023, pp. 1256–65, doi:<a
    href="https://doi.org/10.1038/s41592-023-01936-6">10.1038/s41592-023-01936-6</a>.
  short: P. Velicky, E. Miguel Villalba, J.M. Michalska, J. Lyudchik, D. Wei, Z. Lin,
    J. Watson, J. Troidl, J. Beyer, Y. Ben Simon, C.M. Sommer, W. Jahr, A. Cenameri,
    J. Broichhagen, S.G.N. Grant, P.M. Jonas, G. Novarino, H. Pfister, B. Bickel,
    J.G. Danzl, Nature Methods 20 (2023) 1256–1265.
corr_author: '1'
date_created: 2023-07-23T22:01:13Z
date_published: 2023-08-01T00:00:00Z
date_updated: 2026-10-02T11:27:12Z
day: '01'
ddc:
- '570'
department:
- _id: PeJo
- _id: GaNo
- _id: BeBi
- _id: JoDa
- _id: Bio
doi: 10.1038/s41592-023-01936-6
ec_funded: 1
external_id:
  isi:
  - '001025621500001'
  pmid:
  - '37429995'
file:
- access_level: open_access
  checksum: a68e845780a82ea36d0d4d3212a87c10
  content_type: application/pdf
  creator: dernst
  date_created: 2025-02-26T08:01:57Z
  date_updated: 2025-02-26T08:01:57Z
  file_id: '19088'
  file_name: 2023_NatureMethods_Velicky.pdf
  file_size: 14103039
  relation: main_file
  success: 1
file_date_updated: 2025-02-26T08:01:57Z
fulldoi: https://doi.org/10.1038/s41592-023-01936-6
has_accepted_license: '1'
intvolume: '        20'
isi: 1
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: 1256-1265
pmid: 1
project:
- _id: 265CB4D0-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I03600
  name: Optical control of synaptic function via adhesion molecules
- _id: 2548AE96-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232
  name: Molecular Drug Targets
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
- _id: 23889792-32DE-11EA-91FC-C7463DDC885E
  grant_number: LS18-022
  name: High content imaging to decode human immune cell interactions in health and
    allergic disease
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '715767'
  name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
    Modeling'
- _id: 25444568-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '715508'
  name: Probing the Reversibility of Autism Spectrum Disorders by Employing in vivo
    and in vitro Models
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: fc2be41b-9c52-11eb-aca3-faa90aa144e9
  call_identifier: H2020
  grant_number: '101026635'
  name: Synaptic computations of the hippocampal CA3 circuitry
- _id: 2668BFA0-B435-11E9-9278-68D0E5697425
  grant_number: LT00057
  name: High-speed 3D-nanoscopy to study the role of adhesion during 3D cell migration
publication: Nature Methods
publication_identifier:
  eissn:
  - 1548-7105
  issn:
  - 1548-7091
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/danzllab/LIONESS
  record:
  - id: '12817'
    relation: research_data
    status: public
  - id: '14770'
    relation: shorter_version
    status: public
  - id: '11943'
    relation: earlier_version
    status: public
  - id: '18674'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Dense 4D nanoscale reconstruction of living brain tissue
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 20
year: '2023'
...
---
_id: '11951'
abstract:
- lang: eng
  text: The mammalian hippocampal formation (HF) plays a key role in several higher
    brain functions, such as spatial coding, learning and memory. Its simple circuit
    architecture is often viewed as a trisynaptic loop, processing input originating
    from the superficial layers of the entorhinal cortex (EC) and sending it back
    to its deeper layers. Here, we show that excitatory neurons in layer 6b of the
    mouse EC project to all sub-regions comprising the HF and receive input from the
    CA1, thalamus and claustrum. Furthermore, their output is characterized by unique
    slow-decaying excitatory postsynaptic currents capable of driving plateau-like
    potentials in their postsynaptic targets. Optogenetic inhibition of the EC-6b
    pathway affects spatial coding in CA1 pyramidal neurons, while cell ablation impairs
    not only acquisition of new spatial memories, but also degradation of previously
    acquired ones. Our results provide evidence of a functional role for cortical
    layer 6b neurons in the adult brain.
acknowledged_ssus:
- _id: Bio
- _id: SSU
acknowledgement: We thank F. Marr and A. Schlögl for technical assistance, E. Kralli-Beller
  for manuscript editing, as well as C. Sommer and the Imaging and Optics Facility
  of the Institute of Science and Technology Austria (ISTA) for image analysis scripts
  and microscopy support. We extend our gratitude to J. Wallenschus and D. Rangel
  Guerrero for technical assistance acquiring single-unit data and I. Gridchyn for
  help with single-unit clustering. Finally, we also thank B. Suter for discussions,
  A. Saunders, M. Jösch, and H. Monyer for critically reading earlier versions of
  the manuscript, C. Petersen for sharing clearing protocols, and the Scientific Service
  Units of ISTA for efficient support. This project was funded by the European Research
  Council (ERC) under the European Union’s Horizon 2020 research and innovation programme
  (ERC advanced grant No 692692 to P.J.) and the Fond zur Förderung der Wissenschaftlichen
  Forschung (Z 312-B27, Wittgenstein award for P.J. and I3600-B27 for J.G.D. and P.V.).
article_number: '4826'
article_processing_charge: No
article_type: original
author:
- first_name: Yoav
  full_name: Ben Simon, Yoav
  id: 43DF3136-F248-11E8-B48F-1D18A9856A87
  last_name: Ben Simon
- first_name: Karola
  full_name: Käfer, Karola
  id: 2DAA49AA-F248-11E8-B48F-1D18A9856A87
  last_name: Käfer
- first_name: Philipp
  full_name: Velicky, Philipp
  id: 39BDC62C-F248-11E8-B48F-1D18A9856A87
  last_name: Velicky
  orcid: 0000-0002-2340-7431
- first_name: Jozsef L
  full_name: Csicsvari, Jozsef L
  id: 3FA14672-F248-11E8-B48F-1D18A9856A87
  last_name: Csicsvari
  orcid: 0000-0002-5193-4036
- first_name: Johann G
  full_name: Danzl, Johann G
  id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
  last_name: Danzl
  orcid: 0000-0001-8559-3973
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Ben Simon Y, Käfer K, Velicky P, Csicsvari JL, Danzl JG, Jonas PM. A direct
    excitatory projection from entorhinal layer 6b neurons to the hippocampus contributes
    to spatial coding and memory. <i>Nature Communications</i>. 2022;13. doi:<a href="https://doi.org/10.1038/s41467-022-32559-8">10.1038/s41467-022-32559-8</a>
  apa: Ben Simon, Y., Käfer, K., Velicky, P., Csicsvari, J. L., Danzl, J. G., &#38;
    Jonas, P. M. (2022). A direct excitatory projection from entorhinal layer 6b neurons
    to the hippocampus contributes to spatial coding and memory. <i>Nature Communications</i>.
    Springer Nature. <a href="https://doi.org/10.1038/s41467-022-32559-8">https://doi.org/10.1038/s41467-022-32559-8</a>
  chicago: Ben Simon, Yoav, Karola Käfer, Philipp Velicky, Jozsef L Csicsvari, Johann
    G Danzl, and Peter M Jonas. “A Direct Excitatory Projection from Entorhinal Layer
    6b Neurons to the Hippocampus Contributes to Spatial Coding and Memory.” <i>Nature
    Communications</i>. Springer Nature, 2022. <a href="https://doi.org/10.1038/s41467-022-32559-8">https://doi.org/10.1038/s41467-022-32559-8</a>.
  ieee: Y. Ben Simon, K. Käfer, P. Velicky, J. L. Csicsvari, J. G. Danzl, and P. M.
    Jonas, “A direct excitatory projection from entorhinal layer 6b neurons to the
    hippocampus contributes to spatial coding and memory,” <i>Nature Communications</i>,
    vol. 13. Springer Nature, 2022.
  ista: Ben Simon Y, Käfer K, Velicky P, Csicsvari JL, Danzl JG, Jonas PM. 2022. A
    direct excitatory projection from entorhinal layer 6b neurons to the hippocampus
    contributes to spatial coding and memory. Nature Communications. 13, 4826.
  mla: Ben Simon, Yoav, et al. “A Direct Excitatory Projection from Entorhinal Layer
    6b Neurons to the Hippocampus Contributes to Spatial Coding and Memory.” <i>Nature
    Communications</i>, vol. 13, 4826, Springer Nature, 2022, doi:<a href="https://doi.org/10.1038/s41467-022-32559-8">10.1038/s41467-022-32559-8</a>.
  short: Y. Ben Simon, K. Käfer, P. Velicky, J.L. Csicsvari, J.G. Danzl, P.M. Jonas,
    Nature Communications 13 (2022).
corr_author: '1'
date_created: 2022-08-24T08:25:50Z
date_published: 2022-08-16T00:00:00Z
date_updated: 2025-06-12T06:10:44Z
day: '16'
ddc:
- '570'
department:
- _id: JoCs
- _id: PeJo
- _id: JoDa
doi: 10.1038/s41467-022-32559-8
ec_funded: 1
external_id:
  isi:
  - '000841396400008'
  pmid:
  - '35974109'
file:
- access_level: open_access
  checksum: 405936d9e4d33625d80c093c9713a91f
  content_type: application/pdf
  creator: dernst
  date_created: 2022-08-26T11:51:40Z
  date_updated: 2022-08-26T11:51:40Z
  file_id: '11990'
  file_name: 2022_NatureCommunications_BenSimon.pdf
  file_size: 5910357
  relation: main_file
  success: 1
file_date_updated: 2022-08-26T11:51:40Z
fulldoi: https://doi.org/10.1038/s41467-022-32559-8
has_accepted_license: '1'
intvolume: '        13'
isi: 1
keyword:
- General Physics and Astronomy
- General Biochemistry
- Genetics and Molecular Biology
- General Chemistry
- Multidisciplinary
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 265CB4D0-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I03600
  name: Optical control of synaptic function via adhesion molecules
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: A direct excitatory projection from entorhinal layer 6b neurons to the hippocampus
  contributes to spatial coding and memory
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2022'
...
---
_id: '12288'
abstract:
- lang: eng
  text: To understand the function of neuronal circuits, it is crucial to disentangle
    the connectivity patterns within the network. However, most tools currently used
    to explore connectivity have low throughput, low selectivity, or limited accessibility.
    Here, we report the development of an improved packaging system for the production
    of the highly neurotropic RVdGenvA-CVS-N2c rabies viral vectors, yielding titers
    orders of magnitude higher with no background contamination, at a fraction of
    the production time, while preserving the efficiency of transsynaptic labeling.
    Along with the production pipeline, we developed suites of ‘starter’ AAV and bicistronic
    RVdG-CVS-N2c vectors, enabling retrograde labeling from a wide range of neuronal
    populations, tailored for diverse experimental requirements. We demonstrate the
    power and flexibility of the new system by uncovering hidden local and distal
    inhibitory connections in the mouse hippocampal formation and by imaging the functional
    properties of a cortical microcircuit across weeks. Our novel production pipeline
    provides a convenient approach to generate new rabies vectors, while our toolkit
    flexibly and efficiently expands the current capacity to label, manipulate and
    image the neuronal activity of interconnected neuronal circuits in vitro and in
    vivo.
acknowledged_ssus:
- _id: Bio
- _id: PreCl
acknowledgement: We thank F Marr for technical assistance, A Murray for RVdG-CVS-N2c
  viruses and Neuro2A packaging cell-lines and J Watson for reading the manuscript.
  This research was supported by the Scientific Service Units (SSU) of IST-Austria
  through resources provided by the Imaging and Optics Facility (IOF) and the Preclinical
  Facility (PCF). This project was funded by the European Research Council (ERC) under
  the European Union’s Horizon 2020 research and innovation programme (ERC advanced
  grant No 692692, PJ, ERC starting grant No 756502, MJ), the Fond zur Förderung der
  Wissenschaftlichen Forschung (Z 312-B27, Wittgenstein award, PJ), the Human Frontier
  Science Program (LT000256/2018-L, AS) and EMBO (ALTF 1098-2017, AS).
article_number: '79848'
article_processing_charge: No
article_type: original
author:
- first_name: Anton L
  full_name: Sumser, Anton L
  id: 3320A096-F248-11E8-B48F-1D18A9856A87
  last_name: Sumser
  orcid: 0000-0002-4792-1881
- first_name: Maximilian A
  full_name: Jösch, Maximilian A
  id: 2BD278E6-F248-11E8-B48F-1D18A9856A87
  last_name: Jösch
  orcid: 0000-0002-3937-1330
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Yoav
  full_name: Ben Simon, Yoav
  id: 43DF3136-F248-11E8-B48F-1D18A9856A87
  last_name: Ben Simon
citation:
  ama: Sumser AL, Jösch MA, Jonas PM, Ben Simon Y. Fast, high-throughput production
    of improved rabies viral vectors for specific, efficient and versatile transsynaptic
    retrograde labeling. <i>eLife</i>. 2022;11. doi:<a href="https://doi.org/10.7554/elife.79848">10.7554/elife.79848</a>
  apa: Sumser, A. L., Jösch, M. A., Jonas, P. M., &#38; Ben Simon, Y. (2022). Fast,
    high-throughput production of improved rabies viral vectors for specific, efficient
    and versatile transsynaptic retrograde labeling. <i>ELife</i>. eLife Sciences
    Publications. <a href="https://doi.org/10.7554/elife.79848">https://doi.org/10.7554/elife.79848</a>
  chicago: Sumser, Anton L, Maximilian A Jösch, Peter M Jonas, and Yoav Ben Simon.
    “Fast, High-Throughput Production of Improved Rabies Viral Vectors for Specific,
    Efficient and Versatile Transsynaptic Retrograde Labeling.” <i>ELife</i>. eLife
    Sciences Publications, 2022. <a href="https://doi.org/10.7554/elife.79848">https://doi.org/10.7554/elife.79848</a>.
  ieee: A. L. Sumser, M. A. Jösch, P. M. Jonas, and Y. Ben Simon, “Fast, high-throughput
    production of improved rabies viral vectors for specific, efficient and versatile
    transsynaptic retrograde labeling,” <i>eLife</i>, vol. 11. eLife Sciences Publications,
    2022.
  ista: Sumser AL, Jösch MA, Jonas PM, Ben Simon Y. 2022. Fast, high-throughput production
    of improved rabies viral vectors for specific, efficient and versatile transsynaptic
    retrograde labeling. eLife. 11, 79848.
  mla: Sumser, Anton L., et al. “Fast, High-Throughput Production of Improved Rabies
    Viral Vectors for Specific, Efficient and Versatile Transsynaptic Retrograde Labeling.”
    <i>ELife</i>, vol. 11, 79848, eLife Sciences Publications, 2022, doi:<a href="https://doi.org/10.7554/elife.79848">10.7554/elife.79848</a>.
  short: A.L. Sumser, M.A. Jösch, P.M. Jonas, Y. Ben Simon, ELife 11 (2022).
corr_author: '1'
date_created: 2023-01-16T10:04:15Z
date_published: 2022-09-15T00:00:00Z
date_updated: 2025-04-15T08:29:05Z
day: '15'
ddc:
- '570'
department:
- _id: MaJö
- _id: PeJo
doi: 10.7554/elife.79848
ec_funded: 1
external_id:
  isi:
  - '000892204300001'
  pmid:
  - '36040301'
file:
- access_level: open_access
  checksum: 5a2a65e3e7225090c3d8199f3bbd7b7b
  content_type: application/pdf
  creator: dernst
  date_created: 2023-01-30T11:50:53Z
  date_updated: 2023-01-30T11:50:53Z
  file_id: '12463'
  file_name: 2022_eLife_Sumser.pdf
  file_size: 8506811
  relation: main_file
  success: 1
file_date_updated: 2023-01-30T11:50:53Z
fulldoi: https://doi.org/10.7554/elife.79848
has_accepted_license: '1'
intvolume: '        11'
isi: 1
keyword:
- General Immunology and Microbiology
- General Biochemistry
- Genetics and Molecular Biology
- General Medicine
- General Neuroscience
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 2634E9D2-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '756502'
  name: Circuits of Visual Attention
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
- _id: 266D407A-B435-11E9-9278-68D0E5697425
  grant_number: LT000256
  name: Neuronal networks of salience and spatial detection in the murine superior
    colliculus
- _id: 264FEA02-B435-11E9-9278-68D0E5697425
  grant_number: ALTF 1098-2017
  name: Connecting sensory with motor processing in the superior colliculus
publication: eLife
publication_identifier:
  eissn:
  - 2050-084X
publication_status: published
publisher: eLife Sciences Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: Fast, high-throughput production of improved rabies viral vectors for specific,
  efficient and versatile transsynaptic retrograde labeling
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 11
year: '2022'
...
---
OA_place: repository
_id: '11943'
abstract:
- lang: eng
  text: Complex wiring between neurons underlies the information-processing network
    enabling all brain functions, including cognition and memory. For understanding
    how the network is structured, processes information, and changes over time, comprehensive
    visualization of the architecture of living brain tissue with its cellular and
    molecular components would open up major opportunities. However, electron microscopy
    (EM) provides nanometre-scale resolution required for full <jats:italic>in-silico</jats:italic>
    reconstruction<jats:sup>1–5</jats:sup>, yet is limited to fixed specimens and
    static representations. Light microscopy allows live observation, with super-resolution
    approaches<jats:sup>6–12</jats:sup> facilitating nanoscale visualization, but
    comprehensive 3D-reconstruction of living brain tissue has been hindered by tissue
    photo-burden, photobleaching, insufficient 3D-resolution, and inadequate signal-to-noise
    ratio (SNR). Here we demonstrate saturated reconstruction of living brain tissue.
    We developed an integrated imaging and analysis technology, adapting stimulated
    emission depletion (STED) microscopy<jats:sup>6,13</jats:sup> in extracellularly
    labelled tissue<jats:sup>14</jats:sup> for high SNR and near-isotropic resolution.
    Centrally, a two-stage deep-learning approach leveraged previously obtained information
    on sample structure to drastically reduce photo-burden and enable automated volumetric
    reconstruction down to single synapse level. Live reconstruction provides unbiased
    analysis of tissue architecture across time in relation to functional activity
    and targeted activation, and contextual understanding of molecular labelling.
    This adoptable technology will facilitate novel insights into the dynamic functional
    architecture of living brain tissue.
article_processing_charge: No
author:
- first_name: Philipp
  full_name: Velicky, Philipp
  id: 39BDC62C-F248-11E8-B48F-1D18A9856A87
  last_name: Velicky
  orcid: 0000-0002-2340-7431
- first_name: Eder
  full_name: Miguel Villalba, Eder
  id: 3FB91342-F248-11E8-B48F-1D18A9856A87
  last_name: Miguel Villalba
  orcid: 0000-0001-5665-0430
- first_name: Julia M
  full_name: Michalska, Julia M
  id: 443DB6DE-F248-11E8-B48F-1D18A9856A87
  last_name: Michalska
  orcid: 0000-0003-3862-1235
- first_name: Donglai
  full_name: Wei, Donglai
  last_name: Wei
- first_name: Zudi
  full_name: Lin, Zudi
  last_name: Lin
- first_name: Jake
  full_name: Watson, Jake
  id: 63836096-4690-11EA-BD4E-32803DDC885E
  last_name: Watson
  orcid: 0000-0002-8698-3823
- first_name: Jakob
  full_name: Troidl, Jakob
  last_name: Troidl
- first_name: Johanna
  full_name: Beyer, Johanna
  last_name: Beyer
- first_name: Yoav
  full_name: Ben Simon, Yoav
  id: 43DF3136-F248-11E8-B48F-1D18A9856A87
  last_name: Ben Simon
- first_name: Christoph M
  full_name: Sommer, Christoph M
  id: 4DF26D8C-F248-11E8-B48F-1D18A9856A87
  last_name: Sommer
  orcid: 0000-0003-1216-9105
- first_name: Wiebke
  full_name: Jahr, Wiebke
  id: 425C1CE8-F248-11E8-B48F-1D18A9856A87
  last_name: Jahr
  orcid: 0000-0003-0201-2315
- first_name: Alban
  full_name: Cenameri, Alban
  id: 9ac8f577-2357-11eb-997a-e566c5550886
  last_name: Cenameri
- first_name: Johannes
  full_name: Broichhagen, Johannes
  last_name: Broichhagen
- first_name: Seth G. N.
  full_name: Grant, Seth G. N.
  last_name: Grant
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Gaia
  full_name: Novarino, Gaia
  id: 3E57A680-F248-11E8-B48F-1D18A9856A87
  last_name: Novarino
  orcid: 0000-0002-7673-7178
- first_name: Hanspeter
  full_name: Pfister, Hanspeter
  last_name: Pfister
- first_name: Bernd
  full_name: Bickel, Bernd
  id: 49876194-F248-11E8-B48F-1D18A9856A87
  last_name: Bickel
  orcid: 0000-0001-6511-9385
- first_name: Johann G
  full_name: Danzl, Johann G
  id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
  last_name: Danzl
  orcid: 0000-0001-8559-3973
citation:
  ama: Velicky P, Miguel Villalba E, Michalska JM, et al. Saturated reconstruction
    of living brain tissue. <i>bioRxiv</i>. doi:<a href="https://doi.org/10.1101/2022.03.16.484431">10.1101/2022.03.16.484431</a>
  apa: Velicky, P., Miguel Villalba, E., Michalska, J. M., Wei, D., Lin, Z., Watson,
    J., … Danzl, J. G. (n.d.). Saturated reconstruction of living brain tissue. <i>bioRxiv</i>.
    <a href="https://doi.org/10.1101/2022.03.16.484431">https://doi.org/10.1101/2022.03.16.484431</a>
  chicago: Velicky, Philipp, Eder Miguel Villalba, Julia M Michalska, Donglai Wei,
    Zudi Lin, Jake Watson, Jakob Troidl, et al. “Saturated Reconstruction of Living
    Brain Tissue.” <i>BioRxiv</i>, n.d. <a href="https://doi.org/10.1101/2022.03.16.484431">https://doi.org/10.1101/2022.03.16.484431</a>.
  ieee: P. Velicky <i>et al.</i>, “Saturated reconstruction of living brain tissue,”
    <i>bioRxiv</i>. .
  ista: Velicky P, Miguel Villalba E, Michalska JM, Wei D, Lin Z, Watson J, Troidl
    J, Beyer J, Ben Simon Y, Sommer CM, Jahr W, Cenameri A, Broichhagen J, Grant SGN,
    Jonas PM, Novarino G, Pfister H, Bickel B, Danzl JG. Saturated reconstruction
    of living brain tissue. bioRxiv, <a href="https://doi.org/10.1101/2022.03.16.484431">10.1101/2022.03.16.484431</a>.
  mla: Velicky, Philipp, et al. “Saturated Reconstruction of Living Brain Tissue.”
    <i>BioRxiv</i>, doi:<a href="https://doi.org/10.1101/2022.03.16.484431">10.1101/2022.03.16.484431</a>.
  short: P. Velicky, E. Miguel Villalba, J.M. Michalska, D. Wei, Z. Lin, J. Watson,
    J. Troidl, J. Beyer, Y. Ben Simon, C.M. Sommer, W. Jahr, A. Cenameri, J. Broichhagen,
    S.G.N. Grant, P.M. Jonas, G. Novarino, H. Pfister, B. Bickel, J.G. Danzl, BioRxiv
    (n.d.).
corr_author: '1'
das_tickbox: '1'
date_created: 2022-08-23T11:07:59Z
date_published: 2022-05-09T00:00:00Z
date_updated: 2026-10-25T23:31:00Z
day: '09'
department:
- _id: PeJo
- _id: GaNo
- _id: BeBi
- _id: JoDa
doi: 10.1101/2022.03.16.484431
fulldoi: https://doi.org/10.1101/2022.03.16.484431
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1101/2022.03.16.484431
month: '05'
oa: 1
oa_version: Preprint
publication: bioRxiv
publication_status: draft
related_material:
  record:
  - id: '13267'
    relation: later_version
    status: public
  - id: '12470'
    relation: dissertation_contains
    status: public
status: public
title: Saturated reconstruction of living brain tissue
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2022'
...
---
_id: '11950'
abstract:
- lang: eng
  text: Mapping the complex and dense arrangement of cells and their connectivity
    in brain tissue demands nanoscale spatial resolution imaging. Super-resolution
    optical microscopy excels at visualizing specific molecules and individual cells
    but fails to provide tissue context. Here we developed Comprehensive Analysis
    of Tissues across Scales (CATS), a technology to densely map brain tissue architecture
    from millimeter regional to nanoscopic synaptic scales in diverse chemically fixed
    brain preparations, including rodent and human. CATS leverages fixation-compatible
    extracellular labeling and advanced optical readout, in particular stimulated-emission
    depletion and expansion microscopy, to comprehensively delineate cellular structures.
    It enables 3D-reconstructing single synapses and mapping synaptic connectivity
    by identification and tailored analysis of putative synaptic cleft regions. Applying
    CATS to the hippocampal mossy fiber circuitry, we demonstrate its power to reveal
    the system’s molecularly informed ultrastructure across spatial scales and assess
    local connectivity by reconstructing and quantifying the synaptic input and output
    structure of identified neurons.
article_processing_charge: No
author:
- first_name: Julia M
  full_name: Michalska, Julia M
  id: 443DB6DE-F248-11E8-B48F-1D18A9856A87
  last_name: Michalska
  orcid: 0000-0003-3862-1235
- first_name: Julia
  full_name: Lyudchik, Julia
  id: 46E28B80-F248-11E8-B48F-1D18A9856A87
  last_name: Lyudchik
- first_name: Philipp
  full_name: Velicky, Philipp
  id: 39BDC62C-F248-11E8-B48F-1D18A9856A87
  last_name: Velicky
  orcid: 0000-0002-2340-7431
- first_name: Hana
  full_name: Korinkova, Hana
  id: ee3cb6ca-ec98-11ea-ae11-ff703e2254ed
  last_name: Korinkova
- first_name: Jake
  full_name: Watson, Jake
  id: 63836096-4690-11EA-BD4E-32803DDC885E
  last_name: Watson
  orcid: 0000-0002-8698-3823
- first_name: Alban
  full_name: Cenameri, Alban
  id: 9ac8f577-2357-11eb-997a-e566c5550886
  last_name: Cenameri
- first_name: Christoph M
  full_name: Sommer, Christoph M
  id: 4DF26D8C-F248-11E8-B48F-1D18A9856A87
  last_name: Sommer
  orcid: 0000-0003-1216-9105
- first_name: Alessandro
  full_name: Venturino, Alessandro
  id: 41CB84B2-F248-11E8-B48F-1D18A9856A87
  last_name: Venturino
  orcid: 0000-0003-2356-9403
- first_name: Karl
  full_name: Roessler, Karl
  last_name: Roessler
- first_name: Thomas
  full_name: Czech, Thomas
  last_name: Czech
- first_name: Sandra
  full_name: Siegert, Sandra
  id: 36ACD32E-F248-11E8-B48F-1D18A9856A87
  last_name: Siegert
  orcid: 0000-0001-8635-0877
- first_name: Gaia
  full_name: Novarino, Gaia
  id: 3E57A680-F248-11E8-B48F-1D18A9856A87
  last_name: Novarino
  orcid: 0000-0002-7673-7178
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
- first_name: Johann G
  full_name: Danzl, Johann G
  id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
  last_name: Danzl
  orcid: 0000-0001-8559-3973
citation:
  ama: Michalska JM, Lyudchik J, Velicky P, et al. Uncovering brain tissue architecture
    across scales with super-resolution light microscopy. <i>bioRxiv</i>. doi:<a href="https://doi.org/10.1101/2022.08.17.504272">10.1101/2022.08.17.504272</a>
  apa: Michalska, J. M., Lyudchik, J., Velicky, P., Korinkova, H., Watson, J., Cenameri,
    A., … Danzl, J. G. (n.d.). Uncovering brain tissue architecture across scales
    with super-resolution light microscopy. <i>bioRxiv</i>. <a href="https://doi.org/10.1101/2022.08.17.504272">https://doi.org/10.1101/2022.08.17.504272</a>
  chicago: Michalska, Julia M, Julia Lyudchik, Philipp Velicky, Hana Korinkova, Jake
    Watson, Alban Cenameri, Christoph M Sommer, et al. “Uncovering Brain Tissue Architecture
    across Scales with Super-Resolution Light Microscopy.” <i>BioRxiv</i>, n.d. <a
    href="https://doi.org/10.1101/2022.08.17.504272">https://doi.org/10.1101/2022.08.17.504272</a>.
  ieee: J. M. Michalska <i>et al.</i>, “Uncovering brain tissue architecture across
    scales with super-resolution light microscopy,” <i>bioRxiv</i>. .
  ista: Michalska JM, Lyudchik J, Velicky P, Korinkova H, Watson J, Cenameri A, Sommer
    CM, Venturino A, Roessler K, Czech T, Siegert S, Novarino G, Jonas PM, Danzl JG.
    Uncovering brain tissue architecture across scales with super-resolution light
    microscopy. bioRxiv, <a href="https://doi.org/10.1101/2022.08.17.504272">10.1101/2022.08.17.504272</a>.
  mla: Michalska, Julia M., et al. “Uncovering Brain Tissue Architecture across Scales
    with Super-Resolution Light Microscopy.” <i>BioRxiv</i>, doi:<a href="https://doi.org/10.1101/2022.08.17.504272">10.1101/2022.08.17.504272</a>.
  short: J.M. Michalska, J. Lyudchik, P. Velicky, H. Korinkova, J. Watson, A. Cenameri,
    C.M. Sommer, A. Venturino, K. Roessler, T. Czech, S. Siegert, G. Novarino, P.M.
    Jonas, J.G. Danzl, BioRxiv (n.d.).
corr_author: '1'
das_tickbox: '1'
date_created: 2022-08-24T08:24:52Z
date_published: 2022-08-18T00:00:00Z
date_updated: 2026-10-25T23:31:00Z
day: '18'
department:
- _id: SaSi
- _id: GaNo
- _id: PeJo
- _id: JoDa
doi: 10.1101/2022.08.17.504272
fulldoi: https://doi.org/10.1101/2022.08.17.504272
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1101/2022.08.17.504272
month: '08'
oa: 1
oa_version: Preprint
publication: bioRxiv
publication_status: draft
related_material:
  record:
  - id: '12470'
    relation: dissertation_contains
    status: public
status: public
title: Uncovering brain tissue architecture across scales with super-resolution light
  microscopy
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2022'
...
---
_id: '9329'
abstract:
- lang: eng
  text: "Background: To understand information coding in single neurons, it is necessary
    to analyze subthreshold synaptic events, action potentials (APs), and their interrelation
    in different behavioral states. However, detecting excitatory postsynaptic potentials
    (EPSPs) or currents (EPSCs) in behaving animals remains challenging, because of
    unfavorable signal-to-noise ratio, high frequency, fluctuating amplitude, and
    variable time course of synaptic events.\r\nNew method: We developed a method
    for synaptic event detection, termed MOD (Machine-learning Optimal-filtering Detection-procedure),
    which combines concepts of supervised machine learning and optimal Wiener filtering.
    Experts were asked to manually score short epochs of data. The algorithm was trained
    to obtain the optimal filter coefficients of a Wiener filter and the optimal detection
    threshold. Scored and unscored data were then processed with the optimal filter,
    and events were detected as peaks above threshold.\r\nResults: We challenged MOD
    with EPSP traces in vivo in mice during spatial navigation and EPSC traces in
    vitro in slices under conditions of enhanced transmitter release. The area under
    the curve (AUC) of the receiver operating characteristics (ROC) curve was, on
    average, 0.894 for in vivo and 0.969 for in vitro data sets, indicating high detection
    accuracy and efficiency.\r\nComparison with existing methods: When benchmarked
    using a (1 − AUC)−1 metric, MOD outperformed previous methods (template-fit, deconvolution,
    and Bayesian methods) by an average factor of 3.13 for in vivo data sets, but
    showed comparable (template-fit, deconvolution) or higher (Bayesian) computational
    efficacy.\r\nConclusions: MOD may become an important new tool for large-scale,
    real-time analysis of synaptic activity."
acknowledged_ssus:
- _id: SSU
acknowledgement: This project has received funding from the European Research Council
  (ERC) under the European Union’s Horizon 2020 research and innovation programme
  (grant agreement number 692692 to P.J.) and the Fond zur Förderung der Wissenschaftlichen
  Forschung (Z 312-B27, Wittgenstein award to P.J.). We thank Drs. Jozsef Csicsvari,
  Christoph Lampert, and Federico Stella for critically reading previous manuscript
  versions. We are also grateful to Drs. Josh Merel and Ben Shababo for their help
  with applying the Bayesian detection method to our data. We also thank Florian Marr
  for technical assistance, Eleftheria Kralli-Beller for manuscript editing, and the
  Scientific Service Units of IST Austria for efficient support.
article_number: '109125'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Xiaomin
  full_name: Zhang, Xiaomin
  id: 423EC9C2-F248-11E8-B48F-1D18A9856A87
  last_name: Zhang
- first_name: Alois
  full_name: Schlögl, Alois
  id: 45BF87EE-F248-11E8-B48F-1D18A9856A87
  last_name: Schlögl
  orcid: 0000-0002-5621-8100
- first_name: David H
  full_name: Vandael, David H
  id: 3AE48E0A-F248-11E8-B48F-1D18A9856A87
  last_name: Vandael
  orcid: 0000-0001-7577-1676
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: 'Zhang X, Schlögl A, Vandael DH, Jonas PM. MOD: A novel machine-learning optimal-filtering
    method for accurate and efficient detection of subthreshold synaptic events in
    vivo. <i>Journal of Neuroscience Methods</i>. 2021;357(6). doi:<a href="https://doi.org/10.1016/j.jneumeth.2021.109125">10.1016/j.jneumeth.2021.109125</a>'
  apa: 'Zhang, X., Schlögl, A., Vandael, D. H., &#38; Jonas, P. M. (2021). MOD: A
    novel machine-learning optimal-filtering method for accurate and efficient detection
    of subthreshold synaptic events in vivo. <i>Journal of Neuroscience Methods</i>.
    Elsevier. <a href="https://doi.org/10.1016/j.jneumeth.2021.109125">https://doi.org/10.1016/j.jneumeth.2021.109125</a>'
  chicago: 'Zhang, Xiaomin, Alois Schlögl, David H Vandael, and Peter M Jonas. “MOD:
    A Novel Machine-Learning Optimal-Filtering Method for Accurate and Efficient Detection
    of Subthreshold Synaptic Events in Vivo.” <i>Journal of Neuroscience Methods</i>.
    Elsevier, 2021. <a href="https://doi.org/10.1016/j.jneumeth.2021.109125">https://doi.org/10.1016/j.jneumeth.2021.109125</a>.'
  ieee: 'X. Zhang, A. Schlögl, D. H. Vandael, and P. M. Jonas, “MOD: A novel machine-learning
    optimal-filtering method for accurate and efficient detection of subthreshold
    synaptic events in vivo,” <i>Journal of Neuroscience Methods</i>, vol. 357, no.
    6. Elsevier, 2021.'
  ista: 'Zhang X, Schlögl A, Vandael DH, Jonas PM. 2021. MOD: A novel machine-learning
    optimal-filtering method for accurate and efficient detection of subthreshold
    synaptic events in vivo. Journal of Neuroscience Methods. 357(6), 109125.'
  mla: 'Zhang, Xiaomin, et al. “MOD: A Novel Machine-Learning Optimal-Filtering Method
    for Accurate and Efficient Detection of Subthreshold Synaptic Events in Vivo.”
    <i>Journal of Neuroscience Methods</i>, vol. 357, no. 6, 109125, Elsevier, 2021,
    doi:<a href="https://doi.org/10.1016/j.jneumeth.2021.109125">10.1016/j.jneumeth.2021.109125</a>.'
  short: X. Zhang, A. Schlögl, D.H. Vandael, P.M. Jonas, Journal of Neuroscience Methods
    357 (2021).
date_created: 2021-04-18T22:01:39Z
date_published: 2021-03-09T00:00:00Z
date_updated: 2025-06-12T06:39:15Z
day: '09'
ddc:
- '570'
department:
- _id: PeJo
- _id: ScienComp
doi: 10.1016/j.jneumeth.2021.109125
ec_funded: 1
external_id:
  isi:
  - '000661088500005'
  pmid:
  - '33711356'
file:
- access_level: open_access
  checksum: 2a5800d91b96d08b525e17319dcd5e44
  content_type: application/pdf
  creator: dernst
  date_created: 2021-04-19T08:30:22Z
  date_updated: 2021-04-19T08:30:22Z
  file_id: '9339'
  file_name: 2021_JourNeuroscienceMeth_Zhang.pdf
  file_size: 6924738
  relation: main_file
  success: 1
file_date_updated: 2021-04-19T08:30:22Z
fulldoi: https://doi.org/10.1016/j.jneumeth.2021.109125
has_accepted_license: '1'
intvolume: '       357'
isi: 1
issue: '6'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
publication: Journal of Neuroscience Methods
publication_identifier:
  eissn:
  - 1872-678X
  issn:
  - 0165-0270
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'MOD: A novel machine-learning optimal-filtering method for accurate and efficient
  detection of subthreshold synaptic events in vivo'
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
    (CC BY-NC-ND 4.0)
  short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 357
year: '2021'
...
---
OA_place: publisher
OA_type: gold
_id: '9778'
abstract:
- lang: eng
  text: The hippocampal mossy fiber synapse is a key synapse of the trisynaptic circuit.
    Post-tetanic potentiation (PTP) is the most powerful form of plasticity at this
    synaptic connection. It is widely believed that mossy fiber PTP is an entirely
    presynaptic phenomenon, implying that PTP induction is input-specific, and requires
    neither activity of multiple inputs nor stimulation of postsynaptic neurons. To
    directly test cooperativity and associativity, we made paired recordings between
    single mossy fiber terminals and postsynaptic CA3 pyramidal neurons in rat brain
    slices. By stimulating non-overlapping mossy fiber inputs converging onto single
    CA3 neurons, we confirm that PTP is input-specific and non-cooperative. Unexpectedly,
    mossy fiber PTP exhibits anti-associative induction properties. EPSCs show only
    minimal PTP after combined pre- and postsynaptic high-frequency stimulation with
    intact postsynaptic Ca2+ signaling, but marked PTP in the absence of postsynaptic
    spiking and after suppression of postsynaptic Ca2+ signaling (10 mM EGTA). PTP
    is largely recovered by inhibitors of voltage-gated R- and L-type Ca2+ channels,
    group II mGluRs, and vacuolar-type H+-ATPase, suggesting the involvement of retrograde
    vesicular glutamate signaling. Transsynaptic regulation of PTP extends the repertoire
    of synaptic computations, implementing a brake on mossy fiber detonation and a
    “smart teacher” function of hippocampal mossy fiber synapses.
acknowledged_ssus:
- _id: SSU
acknowledgement: We thank Drs. Carolina Borges-Merjane and Jose Guzman for critically
  reading the manuscript, and Pablo Castillo for discussions. We are grateful to Alois
  Schlögl for help with analysis, Florian Marr for excellent technical assistance
  and cell reconstruction, Christina Altmutter for technical help, Eleftheria Kralli-Beller
  for manuscript editing, and the Scientific Service Units of IST Austria for support.
  This project received funding from the European Research Council (ERC) under the
  European Union’s Horizon 2020 research and innovation program (grant agreement No
  692692) and the Fond zur Förderung der Wissenschaftlichen Forschung (Z 312-B27,
  Wittgenstein award), both to P.J.
article_number: '2912'
article_processing_charge: Yes
article_type: original
author:
- first_name: David H
  full_name: Vandael, David H
  id: 3AE48E0A-F248-11E8-B48F-1D18A9856A87
  last_name: Vandael
  orcid: 0000-0001-7577-1676
- first_name: Yuji
  full_name: Okamoto, Yuji
  id: 3337E116-F248-11E8-B48F-1D18A9856A87
  last_name: Okamoto
  orcid: 0000-0003-0408-6094
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Vandael DH, Okamoto Y, Jonas PM. Transsynaptic modulation of presynaptic short-term
    plasticity in hippocampal mossy fiber synapses. <i>Nature Communications</i>.
    2021;12(1). doi:<a href="https://doi.org/10.1038/s41467-021-23153-5">10.1038/s41467-021-23153-5</a>
  apa: Vandael, D. H., Okamoto, Y., &#38; Jonas, P. M. (2021). Transsynaptic modulation
    of presynaptic short-term plasticity in hippocampal mossy fiber synapses. <i>Nature
    Communications</i>. Springer. <a href="https://doi.org/10.1038/s41467-021-23153-5">https://doi.org/10.1038/s41467-021-23153-5</a>
  chicago: Vandael, David H, Yuji Okamoto, and Peter M Jonas. “Transsynaptic Modulation
    of Presynaptic Short-Term Plasticity in Hippocampal Mossy Fiber Synapses.” <i>Nature
    Communications</i>. Springer, 2021. <a href="https://doi.org/10.1038/s41467-021-23153-5">https://doi.org/10.1038/s41467-021-23153-5</a>.
  ieee: D. H. Vandael, Y. Okamoto, and P. M. Jonas, “Transsynaptic modulation of presynaptic
    short-term plasticity in hippocampal mossy fiber synapses,” <i>Nature Communications</i>,
    vol. 12, no. 1. Springer, 2021.
  ista: Vandael DH, Okamoto Y, Jonas PM. 2021. Transsynaptic modulation of presynaptic
    short-term plasticity in hippocampal mossy fiber synapses. Nature Communications.
    12(1), 2912.
  mla: Vandael, David H., et al. “Transsynaptic Modulation of Presynaptic Short-Term
    Plasticity in Hippocampal Mossy Fiber Synapses.” <i>Nature Communications</i>,
    vol. 12, no. 1, 2912, Springer, 2021, doi:<a href="https://doi.org/10.1038/s41467-021-23153-5">10.1038/s41467-021-23153-5</a>.
  short: D.H. Vandael, Y. Okamoto, P.M. Jonas, Nature Communications 12 (2021).
corr_author: '1'
date_created: 2021-08-06T07:22:55Z
date_published: 2021-05-18T00:00:00Z
date_updated: 2025-06-12T06:28:45Z
day: '18'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1038/s41467-021-23153-5
ec_funded: 1
external_id:
  isi:
  - '000655481800014'
  pmid:
  - '34006874'
file:
- access_level: open_access
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  creator: kschuh
  date_created: 2021-12-17T11:34:50Z
  date_updated: 2021-12-17T11:34:50Z
  file_id: '10563'
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  file_size: 3108845
  relation: main_file
  success: 1
file_date_updated: 2021-12-17T11:34:50Z
fulldoi: https://doi.org/10.1038/s41467-021-23153-5
has_accepted_license: '1'
intvolume: '        12'
isi: 1
issue: '1'
keyword:
- general physics and astronomy
- general biochemistry
- genetics and molecular biology
- general chemistry
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Springer
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/synaptic-transmission-not-a-one-way-street/
scopus_import: '1'
status: public
title: Transsynaptic modulation of presynaptic short-term plasticity in hippocampal
  mossy fiber synapses
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 12
year: '2021'
...
---
_id: '9438'
abstract:
- lang: eng
  text: Rigorous investigation of synaptic transmission requires analysis of unitary
    synaptic events by simultaneous recording from presynaptic terminals and postsynaptic
    target neurons. However, this has been achieved at only a limited number of model
    synapses, including the squid giant synapse and the mammalian calyx of Held. Cortical
    presynaptic terminals have been largely inaccessible to direct presynaptic recording,
    due to their small size. Here, we describe a protocol for improved subcellular
    patch-clamp recording in rat and mouse brain slices, with the synapse in a largely
    intact environment. Slice preparation takes ~2 h, recording ~3 h and post hoc
    morphological analysis 2 d. Single presynaptic hippocampal mossy fiber terminals
    are stimulated minimally invasively in the bouton-attached configuration, in which
    the cytoplasmic content remains unperturbed, or in the whole-bouton configuration,
    in which the cytoplasmic composition can be precisely controlled. Paired pre–postsynaptic
    recordings can be integrated with biocytin labeling and morphological analysis,
    allowing correlative investigation of synapse structure and function. Paired recordings
    can be obtained from mossy fiber terminals in slices from both rats and mice,
    implying applicability to genetically modified synapses. Paired recordings can
    also be performed together with axon tract stimulation or optogenetic activation,
    allowing comparison of unitary and compound synaptic events in the same target
    cell. Finally, paired recordings can be combined with spontaneous event analysis,
    permitting collection of miniature events generated at a single identified synapse.
    In conclusion, the subcellular patch-clamp techniques detailed here should facilitate
    analysis of biophysics, plasticity and circuit function of cortical synapses in
    the mammalian central nervous system.
acknowledged_ssus:
- _id: M-Shop
acknowledgement: This project received funding from the European Research Council
  (ERC) under the European Union’s Horizon 2020 research and innovation programme
  (grant agreement no. 692692 to P.J.) and the Fond zur Förderung der Wissenschaftlichen
  Forschung (Z 312-B27, Wittgenstein award to P.J., V 739-B27 to C.B.M.). We are grateful
  to F. Marr and C. Altmutter for excellent technical assistance and cell reconstruction,
  E. Kralli-Beller for manuscript editing, and the Scientific Service Units of IST
  Austria, especially T. Asenov and Miba machine shop, for maximally efficient support.
article_processing_charge: No
article_type: original
author:
- first_name: David H
  full_name: Vandael, David H
  id: 3AE48E0A-F248-11E8-B48F-1D18A9856A87
  last_name: Vandael
  orcid: 0000-0001-7577-1676
- first_name: Yuji
  full_name: Okamoto, Yuji
  id: 3337E116-F248-11E8-B48F-1D18A9856A87
  last_name: Okamoto
  orcid: 0000-0003-0408-6094
- first_name: Carolina
  full_name: Borges Merjane, Carolina
  id: 4305C450-F248-11E8-B48F-1D18A9856A87
  last_name: Borges Merjane
  orcid: 0000-0003-0005-401X
- first_name: Victor M
  full_name: Vargas Barroso, Victor M
  id: 2F55A9DE-F248-11E8-B48F-1D18A9856A87
  last_name: Vargas Barroso
- first_name: Benjamin
  full_name: Suter, Benjamin
  id: 4952F31E-F248-11E8-B48F-1D18A9856A87
  last_name: Suter
  orcid: 0000-0002-9885-6936
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
citation:
  ama: Vandael DH, Okamoto Y, Borges Merjane C, Vargas Barroso VM, Suter B, Jonas
    PM. Subcellular patch-clamp techniques for single-bouton stimulation and simultaneous
    pre- and postsynaptic recording at cortical synapses. <i>Nature Protocols</i>.
    2021;16(6):2947–2967. doi:<a href="https://doi.org/10.1038/s41596-021-00526-0">10.1038/s41596-021-00526-0</a>
  apa: Vandael, D. H., Okamoto, Y., Borges Merjane, C., Vargas Barroso, V. M., Suter,
    B., &#38; Jonas, P. M. (2021). Subcellular patch-clamp techniques for single-bouton
    stimulation and simultaneous pre- and postsynaptic recording at cortical synapses.
    <i>Nature Protocols</i>. Springer Nature. <a href="https://doi.org/10.1038/s41596-021-00526-0">https://doi.org/10.1038/s41596-021-00526-0</a>
  chicago: Vandael, David H, Yuji Okamoto, Carolina Borges Merjane, Victor M Vargas
    Barroso, Benjamin Suter, and Peter M Jonas. “Subcellular Patch-Clamp Techniques
    for Single-Bouton Stimulation and Simultaneous Pre- and Postsynaptic Recording
    at Cortical Synapses.” <i>Nature Protocols</i>. Springer Nature, 2021. <a href="https://doi.org/10.1038/s41596-021-00526-0">https://doi.org/10.1038/s41596-021-00526-0</a>.
  ieee: D. H. Vandael, Y. Okamoto, C. Borges Merjane, V. M. Vargas Barroso, B. Suter,
    and P. M. Jonas, “Subcellular patch-clamp techniques for single-bouton stimulation
    and simultaneous pre- and postsynaptic recording at cortical synapses,” <i>Nature
    Protocols</i>, vol. 16, no. 6. Springer Nature, pp. 2947–2967, 2021.
  ista: Vandael DH, Okamoto Y, Borges Merjane C, Vargas Barroso VM, Suter B, Jonas
    PM. 2021. Subcellular patch-clamp techniques for single-bouton stimulation and
    simultaneous pre- and postsynaptic recording at cortical synapses. Nature Protocols.
    16(6), 2947–2967.
  mla: Vandael, David H., et al. “Subcellular Patch-Clamp Techniques for Single-Bouton
    Stimulation and Simultaneous Pre- and Postsynaptic Recording at Cortical Synapses.”
    <i>Nature Protocols</i>, vol. 16, no. 6, Springer Nature, 2021, pp. 2947–2967,
    doi:<a href="https://doi.org/10.1038/s41596-021-00526-0">10.1038/s41596-021-00526-0</a>.
  short: D.H. Vandael, Y. Okamoto, C. Borges Merjane, V.M. Vargas Barroso, B. Suter,
    P.M. Jonas, Nature Protocols 16 (2021) 2947–2967.
corr_author: '1'
date_created: 2021-05-30T22:01:24Z
date_published: 2021-06-01T00:00:00Z
date_updated: 2025-04-22T22:30:43Z
day: '01'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1038/s41596-021-00526-0
ec_funded: 1
external_id:
  isi:
  - '000650528700003'
  pmid:
  - '33990799'
file:
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  date_created: 2021-07-08T12:27:55Z
  date_updated: 2021-12-02T23:30:05Z
  embargo: 2021-12-01
  file_id: '9639'
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  relation: main_file
file_date_updated: 2021-12-02T23:30:05Z
fulldoi: https://doi.org/10.1038/s41596-021-00526-0
has_accepted_license: '1'
intvolume: '        16'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Submitted Version
page: 2947–2967
pmid: 1
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
- _id: 2696E7FE-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: V00739
  name: Structural plasticity at mossy fiber-CA3 synapses
publication: Nature Protocols
publication_identifier:
  eissn:
  - 1750-2799
  issn:
  - 1754-2189
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Subcellular patch-clamp techniques for single-bouton stimulation and simultaneous
  pre- and postsynaptic recording at cortical synapses
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2021'
...
---
OA_place: repository
OA_type: green
_id: '10816'
abstract:
- lang: eng
  text: Pattern separation is a fundamental brain computation that converts small
    differences in input patterns into large differences in output patterns. Several
    synaptic mechanisms of pattern separation have been proposed, including code expansion,
    inhibition and plasticity; however, which of these mechanisms play a role in the
    entorhinal cortex (EC)–dentate gyrus (DG)–CA3 circuit, a classical pattern separation
    circuit, remains unclear. Here we show that a biologically realistic, full-scale
    EC–DG–CA3 circuit model, including granule cells (GCs) and parvalbumin-positive
    inhibitory interneurons (PV+-INs) in the DG, is an efficient pattern separator.
    Both external gamma-modulated inhibition and internal lateral inhibition mediated
    by PV+-INs substantially contributed to pattern separation. Both local connectivity
    and fast signaling at GC–PV+-IN synapses were important for maximum effectiveness.
    Similarly, mossy fiber synapses with conditional detonator properties contributed
    to pattern separation. By contrast, perforant path synapses with Hebbian synaptic
    plasticity and direct EC–CA3 connection shifted the network towards pattern completion.
    Our results demonstrate that the specific properties of cells and synapses optimize
    higher-order computations in biological networks and might be useful to improve
    the deep learning capabilities of technical networks.
acknowledged_ssus:
- _id: SSU
acknowledgement: We thank A. Aertsen, N. Kopell, W. Maass, A. Roth, F. Stella and
  T. Vogels for critically reading earlier versions of the manuscript. We are grateful
  to F. Marr and C. Altmutter for excellent technical assistance, E. Kralli-Beller
  for manuscript editing, and the Scientific Service Units of IST Austria for efficient
  support. Finally, we thank T. Carnevale, L. Erdös, M. Hines, D. Nykamp and D. Schröder
  for useful discussions, and R. Friedrich and S. Wiechert for sharing unpublished
  data. This project received funding from the European Research Council (ERC) under
  the European Union’s Horizon 2020 research and innovation programme (grant agreement
  no. 692692, P.J.) and the Fond zur Förderung der Wissenschaftlichen Forschung (Z
  312-B27, Wittgenstein award to P.J. and P 31815 to S.J.G.).
article_processing_charge: No
article_type: original
author:
- first_name: José
  full_name: Guzmán, José
  id: 30CC5506-F248-11E8-B48F-1D18A9856A87
  last_name: Guzmán
  orcid: 0000-0003-2209-5242
- first_name: Alois
  full_name: Schlögl, Alois
  id: 45BF87EE-F248-11E8-B48F-1D18A9856A87
  last_name: Schlögl
  orcid: 0000-0002-5621-8100
- first_name: 'Claudia '
  full_name: 'Espinoza Martinez, Claudia '
  id: 31FFEE2E-F248-11E8-B48F-1D18A9856A87
  last_name: Espinoza Martinez
  orcid: 0000-0003-4710-2082
- first_name: Xiaomin
  full_name: Zhang, Xiaomin
  id: 423EC9C2-F248-11E8-B48F-1D18A9856A87
  last_name: Zhang
  orcid: 0000-0003-0256-6529
- first_name: Benjamin
  full_name: Suter, Benjamin
  id: 4952F31E-F248-11E8-B48F-1D18A9856A87
  last_name: Suter
  orcid: 0000-0002-9885-6936
- first_name: Peter M
  full_name: Jonas, Peter M
  id: 353C1B58-F248-11E8-B48F-1D18A9856A87
  last_name: Jonas
  orcid: 0000-0001-5001-4804
biorxivid: 1
citation:
  ama: Guzmán J, Schlögl A, Espinoza Martinez C, Zhang X, Suter B, Jonas PM. How connectivity
    rules and synaptic properties shape the efficacy of pattern separation in the
    entorhinal cortex–dentate gyrus–CA3 network. <i>Nature Computational Science</i>.
    2021;1(12):830-842. doi:<a href="https://doi.org/10.1038/s43588-021-00157-1">10.1038/s43588-021-00157-1</a>
  apa: Guzmán, J., Schlögl, A., Espinoza Martinez, C., Zhang, X., Suter, B., &#38;
    Jonas, P. M. (2021). How connectivity rules and synaptic properties shape the
    efficacy of pattern separation in the entorhinal cortex–dentate gyrus–CA3 network.
    <i>Nature Computational Science</i>. Springer Nature. <a href="https://doi.org/10.1038/s43588-021-00157-1">https://doi.org/10.1038/s43588-021-00157-1</a>
  chicago: Guzmán, José, Alois Schlögl, Claudia  Espinoza Martinez, Xiaomin Zhang,
    Benjamin Suter, and Peter M Jonas. “How Connectivity Rules and Synaptic Properties
    Shape the Efficacy of Pattern Separation in the Entorhinal Cortex–Dentate Gyrus–CA3
    Network.” <i>Nature Computational Science</i>. Springer Nature, 2021. <a href="https://doi.org/10.1038/s43588-021-00157-1">https://doi.org/10.1038/s43588-021-00157-1</a>.
  ieee: J. Guzmán, A. Schlögl, C. Espinoza Martinez, X. Zhang, B. Suter, and P. M.
    Jonas, “How connectivity rules and synaptic properties shape the efficacy of pattern
    separation in the entorhinal cortex–dentate gyrus–CA3 network,” <i>Nature Computational
    Science</i>, vol. 1, no. 12. Springer Nature, pp. 830–842, 2021.
  ista: Guzmán J, Schlögl A, Espinoza Martinez C, Zhang X, Suter B, Jonas PM. 2021.
    How connectivity rules and synaptic properties shape the efficacy of pattern separation
    in the entorhinal cortex–dentate gyrus–CA3 network. Nature Computational Science.
    1(12), 830–842.
  mla: Guzmán, José, et al. “How Connectivity Rules and Synaptic Properties Shape
    the Efficacy of Pattern Separation in the Entorhinal Cortex–Dentate Gyrus–CA3
    Network.” <i>Nature Computational Science</i>, vol. 1, no. 12, Springer Nature,
    2021, pp. 830–42, doi:<a href="https://doi.org/10.1038/s43588-021-00157-1">10.1038/s43588-021-00157-1</a>.
  short: J. Guzmán, A. Schlögl, C. Espinoza Martinez, X. Zhang, B. Suter, P.M. Jonas,
    Nature Computational Science 1 (2021) 830–842.
corr_author: '1'
date_created: 2022-03-04T08:32:36Z
date_published: 2021-12-16T00:00:00Z
date_updated: 2026-07-28T12:15:17Z
day: '16'
ddc:
- '610'
department:
- _id: PeJo
doi: 10.1038/s43588-021-00157-1
ec_funded: 1
external_id:
  biorxivid:
  - 10.1101/647800
  isi:
  - '000888567500015'
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file_date_updated: 2022-06-18T22:30:03Z
fulldoi: https://doi.org/10.1038/s43588-021-00157-1
has_accepted_license: '1'
intvolume: '         1'
isi: 1
issue: '12'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Submitted Version
page: 830-842
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '692692'
  name: Biophysics and circuit function of a giant cortical glutamatergic synapse
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Z00312
  name: Synaptic communication in neuronal microcircuits
publication: Nature Computational Science
publication_identifier:
  issn:
  - 2662-8457
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - description: News on ISTA Website
    relation: press_release
    url: https://ista.ac.at/en/news/spot-the-difference/
  record:
  - id: '10110'
    relation: software
    status: public
scopus_import: '1'
status: public
title: How connectivity rules and synaptic properties shape the efficacy of pattern
  separation in the entorhinal cortex–dentate gyrus–CA3 network
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1
year: '2021'
...
