---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20289'
abstract:
- lang: eng
  text: Cell and tissue movement in development, cancer invasion, and immune response
    relies on chemical or mechanical guidance cues. In many systems, this behavior
    is locally directed by self-generated signaling gradients rather than long-range,
    prepatterned cues. However, how heterogeneous mixtures of cells interact nonreciprocally
    and navigate through self-generated gradients remains largely unexplored. Here,
    we introduce a theoretical framework for the self-organized chemotaxis of heterogeneous
    cell populations. We find that the relative chemotactic sensitivities of different
    cell populations control their long-time coupling and comigration dynamics, with
    boundary conditions such as external cell and attractant reservoirs substantially
    influencing the migration patterns. Our model predicts an optimal parameter regime
    that enables robust and colocalized migration. We test our theoretical predictions
    with in vitro experiments demonstrating the comigration of distinct immune cell
    populations, and quantitatively reproduce observed migration patterns under wild-type
    and perturbed conditions. Interestingly, immune cell comigration occurs close
    to the predicted optimal regime. Finally, we incorporate mechanical interactions
    into our framework, revealing a nontrivial interplay between chemotactic and mechanical
    nonreciprocity in driving collective migration. Together, our findings suggest
    that self-generated chemotaxis is a robust strategy for the navigation of mixed
    cell populations.
acknowledged_ssus:
- _id: Bio
- _id: PreCl
- _id: LifeSc
- _id: NanoFab
acknowledgement: We thank all members of the M.S. and E.H. groups for stimulating
  discussions.We thank the Imaging and Optics facility, the Pre-clinical and Lab Support
  facility of the Institute of Science and Technology Austria for their excellent
  support and provided resources for the experimental research. In particular, we
  thank Jack Merrin from the Nanofabrication facility who generated the microfabricated
  channel used in this study. This work received funding fromt he European Research
  Council under the European Union’s Horizon 2020 research and innovation program
  (grant agreement No. 851288 to E.H.). M.C.U.is funded by a University of Shefﬁeld
  Strategic Research Fellowship in the Physics of Life and Quantitative Biology.
article_number: e2504064122
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Mehmet C
  full_name: Ucar, Mehmet C
  id: 50B2A802-6007-11E9-A42B-EB23E6697425
  last_name: Ucar
  orcid: 0000-0003-0506-4217
- first_name: Alsberga
  full_name: Zane, Alsberga
  id: 60f7509a-f652-11ea-9d86-b963d6490d7c
  last_name: Zane
  orcid: 0009-0003-0415-7603
- first_name: Jonna H
  full_name: Alanko, Jonna H
  id: 2CC12E8C-F248-11E8-B48F-1D18A9856A87
  last_name: Alanko
  orcid: 0000-0002-7698-3061
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
- first_name: Edouard B
  full_name: Hannezo, Edouard B
  id: 3A9DB764-F248-11E8-B48F-1D18A9856A87
  last_name: Hannezo
  orcid: 0000-0001-6005-1561
citation:
  ama: Ucar MC, Zane A, Alanko JH, Sixt MK, Hannezo EB. Self-generated chemotaxis
    of mixed cell populations. <i>Proceedings of the National Academy of Sciences</i>.
    2025;122(34). doi:<a href="https://doi.org/10.1073/pnas.2504064122">10.1073/pnas.2504064122</a>
  apa: Ucar, M. C., Zane, A., Alanko, J. H., Sixt, M. K., &#38; Hannezo, E. B. (2025).
    Self-generated chemotaxis of mixed cell populations. <i>Proceedings of the National
    Academy of Sciences</i>. National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2504064122">https://doi.org/10.1073/pnas.2504064122</a>
  chicago: Ucar, Mehmet C, Alsberga Zane, Jonna H Alanko, Michael K Sixt, and Edouard
    B Hannezo. “Self-Generated Chemotaxis of Mixed Cell Populations.” <i>Proceedings
    of the National Academy of Sciences</i>. National Academy of Sciences, 2025. <a
    href="https://doi.org/10.1073/pnas.2504064122">https://doi.org/10.1073/pnas.2504064122</a>.
  ieee: M. C. Ucar, A. Zane, J. H. Alanko, M. K. Sixt, and E. B. Hannezo, “Self-generated
    chemotaxis of mixed cell populations,” <i>Proceedings of the National Academy
    of Sciences</i>, vol. 122, no. 34. National Academy of Sciences, 2025.
  ista: Ucar MC, Zane A, Alanko JH, Sixt MK, Hannezo EB. 2025. Self-generated chemotaxis
    of mixed cell populations. Proceedings of the National Academy of Sciences. 122(34),
    e2504064122.
  mla: Ucar, Mehmet C., et al. “Self-Generated Chemotaxis of Mixed Cell Populations.”
    <i>Proceedings of the National Academy of Sciences</i>, vol. 122, no. 34, e2504064122,
    National Academy of Sciences, 2025, doi:<a href="https://doi.org/10.1073/pnas.2504064122">10.1073/pnas.2504064122</a>.
  short: M.C. Ucar, A. Zane, J.H. Alanko, M.K. Sixt, E.B. Hannezo, Proceedings of
    the National Academy of Sciences 122 (2025).
corr_author: '1'
date_created: 2025-09-07T22:01:32Z
date_published: 2025-08-26T00:00:00Z
date_updated: 2026-02-16T12:31:05Z
day: '26'
ddc:
- '570'
department:
- _id: EdHa
- _id: MiSi
doi: 10.1073/pnas.2504064122
ec_funded: 1
external_id:
  isi:
  - '001562181600001'
  pmid:
  - '40838890'
file:
- access_level: open_access
  checksum: b36abd92673b6d76376fc9434bad52cc
  content_type: application/pdf
  creator: dernst
  date_created: 2025-09-08T07:23:29Z
  date_updated: 2025-09-08T07:23:29Z
  file_id: '20307'
  file_name: 2025_PNAS_Ucar.pdf
  file_size: 16069140
  relation: main_file
  success: 1
file_date_updated: 2025-09-08T07:23:29Z
has_accepted_license: '1'
intvolume: '       122'
isi: 1
issue: '34'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 05943252-7A3F-11EA-A408-12923DDC885E
  call_identifier: H2020
  grant_number: '851288'
  name: Design Principles of Branching Morphogenesis
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
related_material:
  link:
  - relation: software
    url: https://github.com/mehmetcanucar/Self-generated-chemotaxis
scopus_import: '1'
status: public
title: Self-generated chemotaxis of mixed cell populations
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: 122
year: '2025'
...
---
_id: '15146'
abstract:
- lang: eng
  text: The extracellular matrix (ECM) serves as a scaffold for cells and plays an
    essential role in regulating numerous cellular processes, including cell migration
    and proliferation. Due to limitations in specimen preparation for conventional
    room-temperature electron microscopy, we lack structural knowledge on how ECM
    components are secreted, remodeled, and interact with surrounding cells. We have
    developed a 3D-ECM platform compatible with sample thinning by cryo-focused ion
    beam milling, the lift-out extraction procedure, and cryo-electron tomography.
    Our workflow implements cell-derived matrices (CDMs) grown on EM grids, resulting
    in a versatile tool closely mimicking ECM environments. This allows us to visualize
    ECM for the first time in its hydrated, native context. Our data reveal an intricate
    network of extracellular fibers, their positioning relative to matrix-secreting
    cells, and previously unresolved structural entities. Our workflow and results
    add to the structural atlas of the ECM, providing novel insights into its secretion
    and assembly.
acknowledged_ssus:
- _id: LifeSc
- _id: ScienComp
- _id: EM-Fac
- _id: M-Shop
acknowledgement: "Open Access funding provided by IST Austria. We thank Armel Nicolas
  and his team at the ISTA proteomics facility, Alois Schloegl, Stefano Elefante,
  and colleagues at the ISTA Scientific Computing facility, Tommaso Constanzo and
  Ludek Lovicar at the Electron Microsocpy Facility (EMF), and Thomas Menner at the
  Miba Machine shop for their support. We also thank Wanda Kukulski (University of
  Bern) as well as Darío Porley, Andreas Thader, and other members of the Schur group
  for helpful discussions. Matt Swulius and Jessica Heebner provided great support
  in using Dragonfly. We thank Dorotea Fracciolla (Art & Science) for support in figure
  illustration.\r\n\r\nThis research was supported by the Scientific Service Units
  of ISTA through resources provided by Scientific Computing, the Lab Support Facility,
  and the Electron Microscopy Facility. We acknowledge funding support from the following
  sources: Austrian Science Fund (FWF) grant P33367 (to F.K.M. Schur), the Federation
  of European Biochemical Societies (to F.K.M. Schur), Niederösterreich (NÖ) Fonds
  (to B. Zens), FWF grant E435 (to J.M. Hansen), European Research Council under the
  European Union’s Horizon 2020 research (grant agreement No. 724373) (to M. Sixt),
  and Jenny and Antti Wihuri Foundation (to J. Alanko). This publication has been
  made possible in part by CZI grant DAF2021-234754 and grant DOI https://doi.org/10.37921/812628ebpcwg
  from the Chan Zuckerberg Initiative DAF, an advised fund of Silicon Valley Community
  Foundation (to F.K.M. Schur)."
article_number: e202309125
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Bettina
  full_name: Zens, Bettina
  id: 45FD126C-F248-11E8-B48F-1D18A9856A87
  last_name: Zens
  orcid: 0000-0002-9561-1239
- first_name: Florian
  full_name: Fäßler, Florian
  id: 404F5528-F248-11E8-B48F-1D18A9856A87
  last_name: Fäßler
  orcid: 0000-0001-7149-769X
- first_name: Jesse
  full_name: Hansen, Jesse
  id: 1063c618-6f9b-11ec-9123-f912fccded63
  last_name: Hansen
  orcid: 0000-0001-7967-2085
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Julia
  full_name: Datler, Julia
  id: 3B12E2E6-F248-11E8-B48F-1D18A9856A87
  last_name: Datler
  orcid: 0000-0002-3616-8580
- first_name: Victor-Valentin
  full_name: Hodirnau, Victor-Valentin
  id: 3661B498-F248-11E8-B48F-1D18A9856A87
  last_name: Hodirnau
  orcid: 0000-0003-3904-947X
- first_name: Vanessa
  full_name: Zheden, Vanessa
  id: 39C5A68A-F248-11E8-B48F-1D18A9856A87
  last_name: Zheden
  orcid: 0000-0002-9438-4783
- first_name: Jonna H
  full_name: Alanko, Jonna H
  id: 2CC12E8C-F248-11E8-B48F-1D18A9856A87
  last_name: Alanko
  orcid: 0000-0002-7698-3061
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
- first_name: Florian KM
  full_name: Schur, Florian KM
  id: 48AD8942-F248-11E8-B48F-1D18A9856A87
  last_name: Schur
  orcid: 0000-0003-4790-8078
citation:
  ama: Zens B, Fäßler F, Hansen J, et al. Lift-out cryo-FIBSEM and cryo-ET reveal
    the ultrastructural landscape of extracellular matrix. <i>Journal of Cell Biology</i>.
    2024;223(6). doi:<a href="https://doi.org/10.1083/jcb.202309125">10.1083/jcb.202309125</a>
  apa: Zens, B., Fäßler, F., Hansen, J., Hauschild, R., Datler, J., Hodirnau, V.-V.,
    … Schur, F. K. (2024). Lift-out cryo-FIBSEM and cryo-ET reveal the ultrastructural
    landscape of extracellular matrix. <i>Journal of Cell Biology</i>. Rockefeller
    University Press. <a href="https://doi.org/10.1083/jcb.202309125">https://doi.org/10.1083/jcb.202309125</a>
  chicago: Zens, Bettina, Florian Fäßler, Jesse Hansen, Robert Hauschild, Julia Datler,
    Victor-Valentin Hodirnau, Vanessa Zheden, Jonna H Alanko, Michael K Sixt, and
    Florian KM Schur. “Lift-out Cryo-FIBSEM and Cryo-ET Reveal the Ultrastructural
    Landscape of Extracellular Matrix.” <i>Journal of Cell Biology</i>. Rockefeller
    University Press, 2024. <a href="https://doi.org/10.1083/jcb.202309125">https://doi.org/10.1083/jcb.202309125</a>.
  ieee: B. Zens <i>et al.</i>, “Lift-out cryo-FIBSEM and cryo-ET reveal the ultrastructural
    landscape of extracellular matrix,” <i>Journal of Cell Biology</i>, vol. 223,
    no. 6. Rockefeller University Press, 2024.
  ista: Zens B, Fäßler F, Hansen J, Hauschild R, Datler J, Hodirnau V-V, Zheden V,
    Alanko JH, Sixt MK, Schur FK. 2024. Lift-out cryo-FIBSEM and cryo-ET reveal the
    ultrastructural landscape of extracellular matrix. Journal of Cell Biology. 223(6),
    e202309125.
  mla: Zens, Bettina, et al. “Lift-out Cryo-FIBSEM and Cryo-ET Reveal the Ultrastructural
    Landscape of Extracellular Matrix.” <i>Journal of Cell Biology</i>, vol. 223,
    no. 6, e202309125, Rockefeller University Press, 2024, doi:<a href="https://doi.org/10.1083/jcb.202309125">10.1083/jcb.202309125</a>.
  short: B. Zens, F. Fäßler, J. Hansen, R. Hauschild, J. Datler, V.-V. Hodirnau, V.
    Zheden, J.H. Alanko, M.K. Sixt, F.K. Schur, Journal of Cell Biology 223 (2024).
corr_author: '1'
date_created: 2024-03-21T06:45:51Z
date_published: 2024-03-20T00:00:00Z
date_updated: 2025-09-04T13:17:16Z
day: '20'
ddc:
- '570'
department:
- _id: FlSc
- _id: MiSi
- _id: Bio
- _id: EM-Fac
doi: 10.1083/jcb.202309125
ec_funded: 1
external_id:
  isi:
  - '001264190100001'
  pmid:
  - '38506714'
file:
- access_level: open_access
  checksum: 90d1984a93660735e506c2a304bc3f73
  content_type: application/pdf
  creator: dernst
  date_created: 2024-03-25T12:52:04Z
  date_updated: 2024-03-25T12:52:04Z
  file_id: '15188'
  file_name: 2024_JCB_Zens.pdf
  file_size: 11907016
  relation: main_file
  success: 1
file_date_updated: 2024-03-25T12:52:04Z
has_accepted_license: '1'
intvolume: '       223'
isi: 1
issue: '6'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 9B954C5C-BA93-11EA-9121-9846C619BF3A
  grant_number: P33367
  name: Structure and isoform diversity of the Arp2/3 complex
- _id: 7bd318a1-9f16-11ee-852c-cc9217763180
  grant_number: E435
  name: In Situ Actin Structures via Hybrid Cryo-electron Microscopy
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '724373'
  name: Cellular Navigation Along Spatial Gradients
- _id: 059B463C-7A3F-11EA-A408-12923DDC885E
  name: "NÃ\x96-Fonds Preis fÃ¼r die Jungforscherin des Jahres am IST Austria"
- _id: 2615199A-B435-11E9-9278-68D0E5697425
  grant_number: '21317'
  name: Spatiotemporal regulation of chemokine-induced signalling in leukocyte chemotaxis
- _id: 62909c6f-2b32-11ec-9570-e1476aab5308
  grant_number: CZI01
  name: CryoMinflux-guided in-situ visual proteomics and structure determination
publication: Journal of Cell Biology
publication_identifier:
  eissn:
  - 1540-8140
  issn:
  - 0021-9525
publication_status: published
publisher: Rockefeller University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Lift-out cryo-FIBSEM and cryo-ET reveal the ultrastructural landscape of extracellular
  matrix
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: 223
year: '2024'
...
---
_id: '14274'
abstract:
- lang: eng
  text: Immune responses rely on the rapid and coordinated migration of leukocytes.
    Whereas it is well established that single-cell migration is often guided by gradients
    of chemokines and other chemoattractants, it remains poorly understood how these
    gradients are generated, maintained, and modulated. By combining experimental
    data with theory on leukocyte chemotaxis guided by the G protein–coupled receptor
    (GPCR) CCR7, we demonstrate that in addition to its role as the sensory receptor
    that steers migration, CCR7 also acts as a generator and a modulator of chemotactic
    gradients. Upon exposure to the CCR7 ligand CCL19, dendritic cells (DCs) effectively
    internalize the receptor and ligand as part of the canonical GPCR desensitization
    response. We show that CCR7 internalization also acts as an effective sink for
    the chemoattractant, dynamically shaping the spatiotemporal distribution of the
    chemokine. This mechanism drives complex collective migration patterns, enabling
    DCs to create or sharpen chemotactic gradients. We further show that these self-generated
    gradients can sustain the long-range guidance of DCs, adapt collective migration
    patterns to the size and geometry of the environment, and provide a guidance cue
    for other comigrating cells. Such a dual role of CCR7 as a GPCR that both senses
    and consumes its ligand can thus provide a novel mode of cellular self-organization.
acknowledgement: "We thank I. de Vries and the Scientific Service Units (Life Sciences,
  Bioimaging, Nanofabrication, Preclinical and Miba Machine Shop) of the Institute
  of Science and Technology Austria for excellent support, as well as all the rotation
  students assisting in the laboratory work (B. Zens, H. Schön, and D. Babic).\r\nThis
  work was supported by grants from the European Research Council under the European
  Union’s Horizon 2020 research to M.S. (grant agreement no. 724373) and to E.H. (grant
  agreement no. 851288), and a grant by the Austrian Science Fund (DK Nanocell W1250-B20)
  to M.S. J.A. was supported by the Jenny and Antti Wihuri Foundation and Research
  Council of Finland's Flagship Programme InFLAMES (decision number: 357910). M.C.U.
  was supported by the European Union’s Horizon 2020 research and innovation programme
  under the Marie Skłodowska-Curie grant agreement no. 754411."
article_number: adc9584
article_processing_charge: No
article_type: original
author:
- first_name: Jonna H
  full_name: Alanko, Jonna H
  id: 2CC12E8C-F248-11E8-B48F-1D18A9856A87
  last_name: Alanko
  orcid: 0000-0002-7698-3061
- first_name: Mehmet C
  full_name: Ucar, Mehmet C
  id: 50B2A802-6007-11E9-A42B-EB23E6697425
  last_name: Ucar
  orcid: 0000-0003-0506-4217
- first_name: Nikola
  full_name: Canigova, Nikola
  id: 3795523E-F248-11E8-B48F-1D18A9856A87
  last_name: Canigova
  orcid: 0000-0002-8518-5926
- first_name: Julian A
  full_name: Stopp, Julian A
  id: 489E3F00-F248-11E8-B48F-1D18A9856A87
  last_name: Stopp
- first_name: Jan
  full_name: Schwarz, Jan
  id: 346C1EC6-F248-11E8-B48F-1D18A9856A87
  last_name: Schwarz
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
- first_name: Edouard B
  full_name: Hannezo, Edouard B
  id: 3A9DB764-F248-11E8-B48F-1D18A9856A87
  last_name: Hannezo
  orcid: 0000-0001-6005-1561
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
citation:
  ama: Alanko JH, Ucar MC, Canigova N, et al. CCR7 acts as both a sensor and a sink
    for CCL19 to coordinate collective leukocyte migration. <i>Science Immunology</i>.
    2023;8(87). doi:<a href="https://doi.org/10.1126/sciimmunol.adc9584">10.1126/sciimmunol.adc9584</a>
  apa: Alanko, J. H., Ucar, M. C., Canigova, N., Stopp, J. A., Schwarz, J., Merrin,
    J., … Sixt, M. K. (2023). CCR7 acts as both a sensor and a sink for CCL19 to coordinate
    collective leukocyte migration. <i>Science Immunology</i>. American Association
    for the Advancement of Science. <a href="https://doi.org/10.1126/sciimmunol.adc9584">https://doi.org/10.1126/sciimmunol.adc9584</a>
  chicago: Alanko, Jonna H, Mehmet C Ucar, Nikola Canigova, Julian A Stopp, Jan Schwarz,
    Jack Merrin, Edouard B Hannezo, and Michael K Sixt. “CCR7 Acts as Both a Sensor
    and a Sink for CCL19 to Coordinate Collective Leukocyte Migration.” <i>Science
    Immunology</i>. American Association for the Advancement of Science, 2023. <a
    href="https://doi.org/10.1126/sciimmunol.adc9584">https://doi.org/10.1126/sciimmunol.adc9584</a>.
  ieee: J. H. Alanko <i>et al.</i>, “CCR7 acts as both a sensor and a sink for CCL19
    to coordinate collective leukocyte migration,” <i>Science Immunology</i>, vol.
    8, no. 87. American Association for the Advancement of Science, 2023.
  ista: Alanko JH, Ucar MC, Canigova N, Stopp JA, Schwarz J, Merrin J, Hannezo EB,
    Sixt MK. 2023. CCR7 acts as both a sensor and a sink for CCL19 to coordinate collective
    leukocyte migration. Science Immunology. 8(87), adc9584.
  mla: Alanko, Jonna H., et al. “CCR7 Acts as Both a Sensor and a Sink for CCL19 to
    Coordinate Collective Leukocyte Migration.” <i>Science Immunology</i>, vol. 8,
    no. 87, adc9584, American Association for the Advancement of Science, 2023, doi:<a
    href="https://doi.org/10.1126/sciimmunol.adc9584">10.1126/sciimmunol.adc9584</a>.
  short: J.H. Alanko, M.C. Ucar, N. Canigova, J.A. Stopp, J. Schwarz, J. Merrin, E.B.
    Hannezo, M.K. Sixt, Science Immunology 8 (2023).
corr_author: '1'
date_created: 2023-09-06T08:07:51Z
date_published: 2023-09-01T00:00:00Z
date_updated: 2026-04-29T22:30:26Z
day: '01'
department:
- _id: MiSi
- _id: EdHa
- _id: NanoFab
doi: 10.1126/sciimmunol.adc9584
ec_funded: 1
external_id:
  isi:
  - '001062110600003'
  pmid:
  - '37656776'
intvolume: '         8'
isi: 1
issue: '87'
keyword:
- General Medicine
- Immunology
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1126/sciimmunol.adc9584
month: '09'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25FE9508-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '724373'
  name: Cellular Navigation Along Spatial Gradients
- _id: 05943252-7A3F-11EA-A408-12923DDC885E
  call_identifier: H2020
  grant_number: '851288'
  name: Design Principles of Branching Morphogenesis
- _id: 265E2996-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W01250-B20
  name: Nano-Analytics of Cellular Systems
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: Science Immunology
publication_identifier:
  issn:
  - 2470-9468
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
related_material:
  record:
  - id: '14279'
    relation: research_data
    status: public
  - id: '19745'
    relation: dissertation_contains
    status: public
  - id: '14697'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: CCR7 acts as both a sensor and a sink for CCL19 to coordinate collective leukocyte
  migration
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2023'
...
---
_id: '7420'
abstract:
- lang: eng
  text: β1-integrins mediate cell–matrix interactions and their trafficking is important
    in the dynamic regulation of cell adhesion, migration and malignant processes,
    including cancer cell invasion. Here, we employ an RNAi screen to characterize
    regulators of integrin traffic and identify the association of Golgi-localized
    gamma ear-containing Arf-binding protein 2 (GGA2) with β1-integrin, and its role
    in recycling of active but not inactive β1-integrin receptors. Silencing of GGA2
    limits active β1-integrin levels in focal adhesions and decreases cancer cell
    migration and invasion, which is in agreement with its ability to regulate the
    dynamics of active integrins. By using the proximity-dependent biotin identification
    (BioID) method, we identified two RAB family small GTPases, i.e. RAB13 and RAB10,
    as novel interactors of GGA2. Functionally, RAB13 silencing triggers the intracellular
    accumulation of active β1-integrin, and reduces integrin activity in focal adhesions
    and cell migration similarly to GGA2 depletion, indicating that both facilitate
    active β1-integrin recycling to the plasma membrane. Thus, GGA2 and RAB13 are
    important specificity determinants for integrin activity-dependent traffic.
article_number: jcs233387
article_processing_charge: No
article_type: original
author:
- first_name: Pranshu
  full_name: Sahgal, Pranshu
  last_name: Sahgal
- first_name: Jonna H
  full_name: Alanko, Jonna H
  id: 2CC12E8C-F248-11E8-B48F-1D18A9856A87
  last_name: Alanko
  orcid: 0000-0002-7698-3061
- first_name: Jaroslav
  full_name: Icha, Jaroslav
  last_name: Icha
- first_name: Ilkka
  full_name: Paatero, Ilkka
  last_name: Paatero
- first_name: Hellyeh
  full_name: Hamidi, Hellyeh
  last_name: Hamidi
- first_name: Antti
  full_name: Arjonen, Antti
  last_name: Arjonen
- first_name: Mika
  full_name: Pietilä, Mika
  last_name: Pietilä
- first_name: Anne
  full_name: Rokka, Anne
  last_name: Rokka
- first_name: Johanna
  full_name: Ivaska, Johanna
  last_name: Ivaska
citation:
  ama: Sahgal P, Alanko JH, Icha J, et al. GGA2 and RAB13 promote activity-dependent
    β1-integrin recycling. <i>Journal of Cell Science</i>. 2019;132(11). doi:<a href="https://doi.org/10.1242/jcs.233387">10.1242/jcs.233387</a>
  apa: Sahgal, P., Alanko, J. H., Icha, J., Paatero, I., Hamidi, H., Arjonen, A.,
    … Ivaska, J. (2019). GGA2 and RAB13 promote activity-dependent β1-integrin recycling.
    <i>Journal of Cell Science</i>. The Company of Biologists. <a href="https://doi.org/10.1242/jcs.233387">https://doi.org/10.1242/jcs.233387</a>
  chicago: Sahgal, Pranshu, Jonna H Alanko, Jaroslav Icha, Ilkka Paatero, Hellyeh
    Hamidi, Antti Arjonen, Mika Pietilä, Anne Rokka, and Johanna Ivaska. “GGA2 and
    RAB13 Promote Activity-Dependent Β1-Integrin Recycling.” <i>Journal of Cell Science</i>.
    The Company of Biologists, 2019. <a href="https://doi.org/10.1242/jcs.233387">https://doi.org/10.1242/jcs.233387</a>.
  ieee: P. Sahgal <i>et al.</i>, “GGA2 and RAB13 promote activity-dependent β1-integrin
    recycling,” <i>Journal of Cell Science</i>, vol. 132, no. 11. The Company of Biologists,
    2019.
  ista: Sahgal P, Alanko JH, Icha J, Paatero I, Hamidi H, Arjonen A, Pietilä M, Rokka
    A, Ivaska J. 2019. GGA2 and RAB13 promote activity-dependent β1-integrin recycling.
    Journal of Cell Science. 132(11), jcs233387.
  mla: Sahgal, Pranshu, et al. “GGA2 and RAB13 Promote Activity-Dependent Β1-Integrin
    Recycling.” <i>Journal of Cell Science</i>, vol. 132, no. 11, jcs233387, The Company
    of Biologists, 2019, doi:<a href="https://doi.org/10.1242/jcs.233387">10.1242/jcs.233387</a>.
  short: P. Sahgal, J.H. Alanko, J. Icha, I. Paatero, H. Hamidi, A. Arjonen, M. Pietilä,
    A. Rokka, J. Ivaska, Journal of Cell Science 132 (2019).
date_created: 2020-01-30T10:31:42Z
date_published: 2019-06-07T00:00:00Z
date_updated: 2023-09-06T15:01:00Z
day: '07'
department:
- _id: MiSi
doi: 10.1242/jcs.233387
external_id:
  isi:
  - '000473327900017'
  pmid:
  - '31076515'
intvolume: '       132'
isi: 1
issue: '11'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1242/jcs.233387
month: '06'
oa: 1
oa_version: Published Version
pmid: 1
publication: Journal of Cell Science
publication_identifier:
  eissn:
  - 1477-9137
  issn:
  - 0021-9533
publication_status: published
publisher: The Company of Biologists
quality_controlled: '1'
status: public
title: GGA2 and RAB13 promote activity-dependent β1-integrin recycling
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 132
year: '2019'
...
---
_id: '5861'
abstract:
- lang: eng
  text: In zebrafish larvae, it is the cell type that determines how the cell responds
    to a chemokine signal.
article_number: e37888
article_processing_charge: No
article_type: original
author:
- first_name: Jonna H
  full_name: Alanko, Jonna H
  id: 2CC12E8C-F248-11E8-B48F-1D18A9856A87
  last_name: Alanko
  orcid: 0000-0002-7698-3061
- first_name: Michael K
  full_name: Sixt, Michael K
  id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
  last_name: Sixt
  orcid: 0000-0002-6620-9179
citation:
  ama: Alanko JH, Sixt MK. The cell sets the tone. <i>eLife</i>. 2018;7. doi:<a href="https://doi.org/10.7554/eLife.37888">10.7554/eLife.37888</a>
  apa: Alanko, J. H., &#38; Sixt, M. K. (2018). The cell sets the tone. <i>ELife</i>.
    eLife Sciences Publications. <a href="https://doi.org/10.7554/eLife.37888">https://doi.org/10.7554/eLife.37888</a>
  chicago: Alanko, Jonna H, and Michael K Sixt. “The Cell Sets the Tone.” <i>ELife</i>.
    eLife Sciences Publications, 2018. <a href="https://doi.org/10.7554/eLife.37888">https://doi.org/10.7554/eLife.37888</a>.
  ieee: J. H. Alanko and M. K. Sixt, “The cell sets the tone,” <i>eLife</i>, vol.
    7. eLife Sciences Publications, 2018.
  ista: Alanko JH, Sixt MK. 2018. The cell sets the tone. eLife. 7, e37888.
  mla: Alanko, Jonna H., and Michael K. Sixt. “The Cell Sets the Tone.” <i>ELife</i>,
    vol. 7, e37888, eLife Sciences Publications, 2018, doi:<a href="https://doi.org/10.7554/eLife.37888">10.7554/eLife.37888</a>.
  short: J.H. Alanko, M.K. Sixt, ELife 7 (2018).
corr_author: '1'
date_created: 2019-01-20T22:59:19Z
date_published: 2018-06-06T00:00:00Z
date_updated: 2025-07-10T11:53:05Z
day: '06'
ddc:
- '570'
department:
- _id: MiSi
doi: 10.7554/eLife.37888
external_id:
  isi:
  - '000434375000001'
file:
- access_level: open_access
  checksum: f1c7ec2a809408d763c4b529a98f9a3b
  content_type: application/pdf
  creator: dernst
  date_created: 2019-02-13T10:52:11Z
  date_updated: 2020-07-14T12:47:13Z
  file_id: '5973'
  file_name: 2018_eLife_Alanko.pdf
  file_size: 358141
  relation: main_file
file_date_updated: 2020-07-14T12:47:13Z
has_accepted_license: '1'
intvolume: '         7'
isi: 1
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
publication: eLife
publication_identifier:
  issn:
  - 2050-084X
publication_status: published
publisher: eLife Sciences Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: The cell sets the tone
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: 7
year: '2018'
...
