---
_id: '946'
abstract:
- lang: eng
  text: Roots navigate through soil integrating environmental signals to orient their
    growth. The Arabidopsis root is a widely used model for developmental, physiological
    and cell biological studies. Live imaging greatly aids these efforts, but the
    horizontal sample position and continuous root tip displacement present significant
    difficulties. Here, we develop a confocal microscope setup for vertical sample
    mounting and integrated directional illumination. We present TipTracker – a custom
    software for automatic tracking of diverse moving objects usable on various microscope
    setups. Combined, this enables observation of root tips growing along the natural
    gravity vector over prolonged periods of time, as well as the ability to induce
    rapid gravity or light stimulation. We also track migrating cells in the developing
    zebrafish embryo, demonstrating the utility of this system in the acquisition
    of high-resolution data sets of dynamic samples. We provide detailed descriptions
    of the tools enabling the easy implementation on other microscopes.
acknowledged_ssus:
- _id: M-Shop
- _id: Bio
acknowledgement: "Funding: Marie Curie Actions (FP7/2007-2013 no 291734) to Daniel
  von Wangenheim; Austrian Science Fund (M 2128-B21) to Matyáš Fendrych; Austrian
  Science Fund (FWF01_I1774S) to Eva Benková; European Research Council (FP7/2007-2013
  no 282300) to Jiří Friml. \r\nThe authors are grateful to the Miba Machine Shop
  at IST Austria for their contribution to the microscope setup and to Yvonne Kemper
  for reading, understanding and correcting the manuscript.\r\n#BioimagingFacility"
article_number: e26792
article_processing_charge: Yes
author:
- first_name: Daniel
  full_name: Von Wangenheim, Daniel
  id: 49E91952-F248-11E8-B48F-1D18A9856A87
  last_name: Von Wangenheim
  orcid: 0000-0002-6862-1247
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Matyas
  full_name: Fendrych, Matyas
  id: 43905548-F248-11E8-B48F-1D18A9856A87
  last_name: Fendrych
  orcid: 0000-0002-9767-8699
- first_name: Vanessa
  full_name: Barone, Vanessa
  id: 419EECCC-F248-11E8-B48F-1D18A9856A87
  last_name: Barone
  orcid: 0000-0003-2676-3367
- first_name: Eva
  full_name: Benková, Eva
  id: 38F4F166-F248-11E8-B48F-1D18A9856A87
  last_name: Benková
  orcid: 0000-0002-8510-9739
- first_name: Jirí
  full_name: Friml, Jirí
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: von Wangenheim D, Hauschild R, Fendrych M, Barone V, Benková E, Friml J. Live
    tracking of moving samples in confocal microscopy for vertically grown roots.
    <i>eLife</i>. 2017;6. doi:<a href="https://doi.org/10.7554/eLife.26792">10.7554/eLife.26792</a>
  apa: von Wangenheim, D., Hauschild, R., Fendrych, M., Barone, V., Benková, E., &#38;
    Friml, J. (2017). Live tracking of moving samples in confocal microscopy for vertically
    grown roots. <i>ELife</i>. eLife Sciences Publications. <a href="https://doi.org/10.7554/eLife.26792">https://doi.org/10.7554/eLife.26792</a>
  chicago: Wangenheim, Daniel von, Robert Hauschild, Matyas Fendrych, Vanessa Barone,
    Eva Benková, and Jiří Friml. “Live Tracking of Moving Samples in Confocal Microscopy
    for Vertically Grown Roots.” <i>ELife</i>. eLife Sciences Publications, 2017.
    <a href="https://doi.org/10.7554/eLife.26792">https://doi.org/10.7554/eLife.26792</a>.
  ieee: D. von Wangenheim, R. Hauschild, M. Fendrych, V. Barone, E. Benková, and J.
    Friml, “Live tracking of moving samples in confocal microscopy for vertically
    grown roots,” <i>eLife</i>, vol. 6. eLife Sciences Publications, 2017.
  ista: von Wangenheim D, Hauschild R, Fendrych M, Barone V, Benková E, Friml J. 2017.
    Live tracking of moving samples in confocal microscopy for vertically grown roots.
    eLife. 6, e26792.
  mla: von Wangenheim, Daniel, et al. “Live Tracking of Moving Samples in Confocal
    Microscopy for Vertically Grown Roots.” <i>ELife</i>, vol. 6, e26792, eLife Sciences
    Publications, 2017, doi:<a href="https://doi.org/10.7554/eLife.26792">10.7554/eLife.26792</a>.
  short: D. von Wangenheim, R. Hauschild, M. Fendrych, V. Barone, E. Benková, J. Friml,
    ELife 6 (2017).
date_created: 2018-12-11T11:49:21Z
date_published: 2017-06-19T00:00:00Z
date_updated: 2025-04-15T06:37:26Z
day: '19'
ddc:
- '570'
department:
- _id: JiFr
- _id: Bio
- _id: CaHe
- _id: EvBe
doi: 10.7554/eLife.26792
ec_funded: 1
external_id:
  isi:
  - '000404728300001'
file:
- access_level: open_access
  checksum: 9af3398cb0d81f99d79016a616df22e9
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:17:57Z
  date_updated: 2020-07-14T12:48:15Z
  file_id: '5315'
  file_name: IST-2017-847-v1+1_elife-26792-v2.pdf
  file_size: 19581847
  relation: main_file
file_date_updated: 2020-07-14T12:48:15Z
has_accepted_license: '1'
intvolume: '         6'
isi: 1
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '06'
oa: 1
oa_version: Published Version
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
- _id: 2572ED28-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: M02128
  name: Molecular basis of root growth inhibition by auxin
- _id: 2542D156-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I 1774-B16
  name: Hormone cross-talk drives nutrient dependent plant development
- _id: 25716A02-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '282300'
  name: Polarity and subcellular dynamics in plants
publication: eLife
publication_status: published
publisher: eLife Sciences Publications
publist_id: '6471'
pubrep_id: '847'
quality_controlled: '1'
related_material:
  record:
  - id: '5566'
    relation: popular_science
    status: public
scopus_import: '1'
status: public
title: Live tracking of moving samples in confocal microscopy for vertically grown
  roots
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: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 6
year: '2017'
...
---
_id: '5560'
abstract:
- lang: eng
  text: "This repository contains the data collected for the manuscript \"Biased partitioning
    of the multi-drug efflux pump AcrAB-TolC underlies long-lived phenotypic heterogeneity\".\r\nThe
    data is compressed into a single archive. Within the archive, different folders
    correspond to figures of the main text and the SI of the related publication.\r\nData
    is saved as plain text, with each folder containing a separate readme file describing
    the format. Typically, the data is from fluorescence microscopy measurements of
    single cells growing in a microfluidic \"mother machine\" device, and consists
    of relevant values (primarily arbitrary unit or normalized fluorescence measurements,
    and division times / growth rates) after raw microscopy images have been processed,
    segmented, and their features extracted, as described in the methods section of
    the related publication."
article_processing_charge: No
author:
- first_name: Tobias
  full_name: Bergmiller, Tobias
  id: 2C471CFA-F248-11E8-B48F-1D18A9856A87
  last_name: Bergmiller
  orcid: 0000-0001-5396-4346
- first_name: Anna M
  full_name: Andersson, Anna M
  id: 2B8A40DA-F248-11E8-B48F-1D18A9856A87
  last_name: Andersson
  orcid: 0000-0003-2912-6769
- first_name: Kathrin
  full_name: Tomasek, Kathrin
  id: 3AEC8556-F248-11E8-B48F-1D18A9856A87
  last_name: Tomasek
  orcid: 0000-0003-3768-877X
- first_name: Enrique
  full_name: Balleza, Enrique
  last_name: Balleza
- first_name: Daniel
  full_name: Kiviet, Daniel
  last_name: Kiviet
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Gasper
  full_name: Tkacik, Gasper
  id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
  last_name: Tkacik
  orcid: 0000-0002-6699-1455
- first_name: Calin C
  full_name: Guet, Calin C
  id: 47F8433E-F248-11E8-B48F-1D18A9856A87
  last_name: Guet
  orcid: 0000-0001-6220-2052
citation:
  ama: Bergmiller T, Andersson AM, Tomasek K, et al. Biased partitioning of the multi-drug
    efflux pump AcrAB-TolC underlies long-lived phenotypic heterogeneity. 2017. doi:<a
    href="https://doi.org/10.15479/AT:ISTA:53">10.15479/AT:ISTA:53</a>
  apa: Bergmiller, T., Andersson, A. M., Tomasek, K., Balleza, E., Kiviet, D., Hauschild,
    R., … Guet, C. C. (2017). Biased partitioning of the multi-drug efflux pump AcrAB-TolC
    underlies long-lived phenotypic heterogeneity. Institute of Science and Technology
    Austria. <a href="https://doi.org/10.15479/AT:ISTA:53">https://doi.org/10.15479/AT:ISTA:53</a>
  chicago: Bergmiller, Tobias, Anna M Andersson, Kathrin Tomasek, Enrique Balleza,
    Daniel Kiviet, Robert Hauschild, Gašper Tkačik, and Calin C Guet. “Biased Partitioning
    of the Multi-Drug Efflux Pump AcrAB-TolC Underlies Long-Lived Phenotypic Heterogeneity.”
    Institute of Science and Technology Austria, 2017. <a href="https://doi.org/10.15479/AT:ISTA:53">https://doi.org/10.15479/AT:ISTA:53</a>.
  ieee: T. Bergmiller <i>et al.</i>, “Biased partitioning of the multi-drug efflux
    pump AcrAB-TolC underlies long-lived phenotypic heterogeneity.” Institute of Science
    and Technology Austria, 2017.
  ista: Bergmiller T, Andersson AM, Tomasek K, Balleza E, Kiviet D, Hauschild R, Tkačik
    G, Guet CC. 2017. Biased partitioning of the multi-drug efflux pump AcrAB-TolC
    underlies long-lived phenotypic heterogeneity, Institute of Science and Technology
    Austria, <a href="https://doi.org/10.15479/AT:ISTA:53">10.15479/AT:ISTA:53</a>.
  mla: Bergmiller, Tobias, et al. <i>Biased Partitioning of the Multi-Drug Efflux
    Pump AcrAB-TolC Underlies Long-Lived Phenotypic Heterogeneity</i>. Institute of
    Science and Technology Austria, 2017, doi:<a href="https://doi.org/10.15479/AT:ISTA:53">10.15479/AT:ISTA:53</a>.
  short: T. Bergmiller, A.M. Andersson, K. Tomasek, E. Balleza, D. Kiviet, R. Hauschild,
    G. Tkačik, C.C. Guet, (2017).
datarep_id: '53'
date_created: 2018-12-12T12:31:32Z
date_published: 2017-03-10T00:00:00Z
date_updated: 2025-09-11T07:05:03Z
day: '10'
ddc:
- '571'
department:
- _id: CaGu
- _id: GaTk
- _id: Bio
doi: 10.15479/AT:ISTA:53
file:
- access_level: open_access
  checksum: d77859af757ac8025c50c7b12b52eaf3
  content_type: application/zip
  creator: system
  date_created: 2018-12-12T13:02:38Z
  date_updated: 2020-07-14T12:47:03Z
  file_id: '5603'
  file_name: IST-2017-53-v1+1_Data_MDE.zip
  file_size: 6773204
  relation: main_file
file_date_updated: 2020-07-14T12:47:03Z
has_accepted_license: '1'
keyword:
- single cell microscopy
- mother machine microfluidic device
- AcrAB-TolC pump
- multi-drug efflux
- Escherichia coli
license: https://creativecommons.org/publicdomain/zero/1.0/
month: '03'
oa: 1
oa_version: Published Version
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '665'
    relation: research_paper
    status: public
status: public
title: Biased partitioning of the multi-drug efflux pump AcrAB-TolC underlies long-lived
  phenotypic heterogeneity
tmp:
  image: /images/cc_0.png
  legal_code_url: https://creativecommons.org/publicdomain/zero/1.0/legalcode
  name: Creative Commons Public Domain Dedication (CC0 1.0)
  short: CC0 (1.0)
type: research_data
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2017'
...
---
_id: '5565'
abstract:
- lang: eng
  text: "One of the key questions in understanding plant development is how single
    cells behave in a larger context of the tissue. Therefore, it requires the observation
    of the whole organ with a high spatial- as well as temporal resolution over prolonged
    periods of time, which may cause photo-toxic effects. This protocol shows a plant
    sample preparation method for light-sheet microscopy, which is characterized by
    mounting the plant vertically on the surface of a gel. The plant is mounted in
    such a way that the roots are submerged in a liquid medium while the leaves remain
    in the air. In order to ensure photosynthetic activity of the plant, a custom-made
    lighting system illuminates the leaves. To keep the roots in darkness the water
    surface is covered with sheets of black plastic foil. This method allows long-term
    imaging of plant organ development in standardized conditions. \r\nThe Video is
    licensed under a CC BY NC ND license. "
acknowledgement: 'fund: FP7-ERC 0101109'
article_processing_charge: No
author:
- first_name: Daniel
  full_name: Von Wangenheim, Daniel
  id: 49E91952-F248-11E8-B48F-1D18A9856A87
  last_name: Von Wangenheim
  orcid: 0000-0002-6862-1247
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Jirí
  full_name: Friml, Jirí
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: von Wangenheim D, Hauschild R, Friml J. Light Sheet Fluorescence microscopy
    of plant roots growing on the surface of a gel. 2017. doi:<a href="https://doi.org/10.15479/AT:ISTA:66">10.15479/AT:ISTA:66</a>
  apa: von Wangenheim, D., Hauschild, R., &#38; Friml, J. (2017). Light Sheet Fluorescence
    microscopy of plant roots growing on the surface of a gel. Institute of Science
    and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:66">https://doi.org/10.15479/AT:ISTA:66</a>
  chicago: Wangenheim, Daniel von, Robert Hauschild, and Jiří Friml. “Light Sheet
    Fluorescence Microscopy of Plant Roots Growing on the Surface of a Gel.” Institute
    of Science and Technology Austria, 2017. <a href="https://doi.org/10.15479/AT:ISTA:66">https://doi.org/10.15479/AT:ISTA:66</a>.
  ieee: D. von Wangenheim, R. Hauschild, and J. Friml, “Light Sheet Fluorescence microscopy
    of plant roots growing on the surface of a gel.” Institute of Science and Technology
    Austria, 2017.
  ista: von Wangenheim D, Hauschild R, Friml J. 2017. Light Sheet Fluorescence microscopy
    of plant roots growing on the surface of a gel, Institute of Science and Technology
    Austria, <a href="https://doi.org/10.15479/AT:ISTA:66">10.15479/AT:ISTA:66</a>.
  mla: von Wangenheim, Daniel, et al. <i>Light Sheet Fluorescence Microscopy of Plant
    Roots Growing on the Surface of a Gel</i>. Institute of Science and Technology
    Austria, 2017, doi:<a href="https://doi.org/10.15479/AT:ISTA:66">10.15479/AT:ISTA:66</a>.
  short: D. von Wangenheim, R. Hauschild, J. Friml, (2017).
datarep_id: '66'
date_created: 2018-12-12T12:31:34Z
date_published: 2017-04-10T00:00:00Z
date_updated: 2025-04-15T07:48:04Z
day: '10'
ddc:
- '580'
department:
- _id: JiFr
- _id: Bio
doi: 10.15479/AT:ISTA:66
ec_funded: 1
file:
- access_level: open_access
  checksum: b7552fc23540a85dc5a22fd4484eae71
  content_type: video/mp4
  creator: system
  date_created: 2018-12-12T13:02:33Z
  date_updated: 2020-07-14T12:47:03Z
  file_id: '5599'
  file_name: IST-2017-66-v1+1_WangenheimHighResolution55044-NEW_1.mp4
  file_size: 101497758
  relation: main_file
file_date_updated: 2020-07-14T12:47:03Z
has_accepted_license: '1'
month: '04'
oa: 1
oa_version: Published Version
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
publisher: Institute of Science and Technology Austria
publist_id: '6302'
related_material:
  record:
  - id: '1078'
    relation: research_paper
    status: public
status: public
title: Light Sheet Fluorescence microscopy of plant roots growing on the surface of
  a gel
type: research_data
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2017'
...
---
_id: '5566'
abstract:
- lang: eng
  text: Current minimal version of TipTracker
article_processing_charge: No
author:
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
citation:
  ama: Hauschild R. Live tracking of moving samples in confocal microscopy for vertically
    grown roots. 2017. doi:<a href="https://doi.org/10.15479/AT:ISTA:69">10.15479/AT:ISTA:69</a>
  apa: Hauschild, R. (2017). Live tracking of moving samples in confocal microscopy
    for vertically grown roots. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:69">https://doi.org/10.15479/AT:ISTA:69</a>
  chicago: Hauschild, Robert. “Live Tracking of Moving Samples in Confocal Microscopy
    for Vertically Grown Roots.” Institute of Science and Technology Austria, 2017.
    <a href="https://doi.org/10.15479/AT:ISTA:69">https://doi.org/10.15479/AT:ISTA:69</a>.
  ieee: R. Hauschild, “Live tracking of moving samples in confocal microscopy for
    vertically grown roots.” Institute of Science and Technology Austria, 2017.
  ista: Hauschild R. 2017. Live tracking of moving samples in confocal microscopy
    for vertically grown roots, Institute of Science and Technology Austria, <a href="https://doi.org/10.15479/AT:ISTA:69">10.15479/AT:ISTA:69</a>.
  mla: Hauschild, Robert. <i>Live Tracking of Moving Samples in Confocal Microscopy
    for Vertically Grown Roots</i>. Institute of Science and Technology Austria, 2017,
    doi:<a href="https://doi.org/10.15479/AT:ISTA:69">10.15479/AT:ISTA:69</a>.
  short: R. Hauschild, (2017).
datarep_id: '69'
date_created: 2018-12-12T12:31:34Z
date_published: 2017-07-21T00:00:00Z
date_updated: 2025-04-15T07:48:05Z
day: '21'
ddc:
- '570'
department:
- _id: Bio
doi: 10.15479/AT:ISTA:69
file:
- access_level: open_access
  checksum: a976000e6715106724a271cc9422be4a
  content_type: application/zip
  creator: system
  date_created: 2018-12-12T13:04:12Z
  date_updated: 2020-07-14T12:47:04Z
  file_id: '5636'
  file_name: IST-2017-69-v1+2_TipTrackerZeissLSM700.zip
  file_size: 1587986
  relation: main_file
file_date_updated: 2020-07-14T12:47:04Z
has_accepted_license: '1'
keyword:
- tool
- tracking
- confocal microscopy
license: https://creativecommons.org/licenses/by-sa/4.0/
month: '07'
oa: 1
oa_version: Published Version
publisher: Institute of Science and Technology Austria
related_material:
  record:
  - id: '946'
    relation: research_paper
    status: public
status: public
title: Live tracking of moving samples in confocal microscopy for vertically grown
  roots
tmp:
  image: /images/cc_by_sa.png
  legal_code_url: https://creativecommons.org/licenses/by-sa/4.0/legalcode
  name: Creative Commons Attribution-ShareAlike 4.0 International Public License (CC
    BY-SA 4.0)
  short: CC BY-SA (4.0)
type: research_data
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2017'
...
---
_id: '5570'
abstract:
- lang: eng
  text: Matlab script to calculate the forward migration indexes (<d_y>/<L>) from
    TrackMate spot-statistics files.
article_processing_charge: No
author:
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
citation:
  ama: Hauschild R. Forward migration indexes. 2017. doi:<a href="https://doi.org/10.15479/AT:ISTA:75">10.15479/AT:ISTA:75</a>
  apa: Hauschild, R. (2017). Forward migration indexes. Institute of Science and Technology
    Austria. <a href="https://doi.org/10.15479/AT:ISTA:75">https://doi.org/10.15479/AT:ISTA:75</a>
  chicago: Hauschild, Robert. “Forward Migration Indexes.” Institute of Science and
    Technology Austria, 2017. <a href="https://doi.org/10.15479/AT:ISTA:75">https://doi.org/10.15479/AT:ISTA:75</a>.
  ieee: R. Hauschild, “Forward migration indexes.” Institute of Science and Technology
    Austria, 2017.
  ista: Hauschild R. 2017. Forward migration indexes, Institute of Science and Technology
    Austria, <a href="https://doi.org/10.15479/AT:ISTA:75">10.15479/AT:ISTA:75</a>.
  mla: Hauschild, Robert. <i>Forward Migration Indexes</i>. Institute of Science and
    Technology Austria, 2017, doi:<a href="https://doi.org/10.15479/AT:ISTA:75">10.15479/AT:ISTA:75</a>.
  short: R. Hauschild, (2017).
datarep_id: '75'
date_created: 2018-12-12T12:31:35Z
date_published: 2017-10-04T00:00:00Z
date_updated: 2024-02-21T13:47:14Z
day: '04'
ddc:
- '570'
department:
- _id: Bio
doi: 10.15479/AT:ISTA:75
file:
- access_level: open_access
  checksum: cb7a2fa622460eca6231d659ce590e32
  content_type: application/octet-stream
  creator: system
  date_created: 2018-12-12T13:02:29Z
  date_updated: 2020-07-14T12:47:04Z
  file_id: '5596'
  file_name: IST-2017-75-v1+1_FMI.m
  file_size: 799
  relation: main_file
file_date_updated: 2020-07-14T12:47:04Z
has_accepted_license: '1'
keyword:
- Cell migration
- tracking
- forward migration index
- FMI
month: '10'
oa: 1
oa_version: Published Version
publisher: Institute of Science and Technology Austria
status: public
title: Forward migration indexes
tmp:
  image: /images/cc_0.png
  legal_code_url: https://creativecommons.org/publicdomain/zero/1.0/legalcode
  name: Creative Commons Public Domain Dedication (CC0 1.0)
  short: CC0 (1.0)
type: research_data
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2017'
...
---
_id: '665'
abstract:
- lang: eng
  text: The molecular mechanisms underlying phenotypic variation in isogenic bacterial
    populations remain poorly understood.We report that AcrAB-TolC, the main multidrug
    efflux pump of Escherichia coli, exhibits a strong partitioning bias for old cell
    poles by a segregation mechanism that is mediated by ternary AcrAB-TolC complex
    formation. Mother cells inheriting old poles are phenotypically distinct and display
    increased drug efflux activity relative to daughters. Consequently, we find systematic
    and long-lived growth differences between mother and daughter cells in the presence
    of subinhibitory drug concentrations. A simple model for biased partitioning predicts
    a population structure of long-lived and highly heterogeneous phenotypes. This
    straightforward mechanism of generating sustained growth rate differences at subinhibitory
    antibiotic concentrations has implications for understanding the emergence of
    multidrug resistance in bacteria.
article_processing_charge: No
article_type: original
author:
- first_name: Tobias
  full_name: Bergmiller, Tobias
  id: 2C471CFA-F248-11E8-B48F-1D18A9856A87
  last_name: Bergmiller
  orcid: 0000-0001-5396-4346
- first_name: Anna M
  full_name: Andersson, Anna M
  id: 2B8A40DA-F248-11E8-B48F-1D18A9856A87
  last_name: Andersson
  orcid: 0000-0003-2912-6769
- first_name: Kathrin
  full_name: Tomasek, Kathrin
  id: 3AEC8556-F248-11E8-B48F-1D18A9856A87
  last_name: Tomasek
  orcid: 0000-0003-3768-877X
- first_name: Enrique
  full_name: Balleza, Enrique
  last_name: Balleza
- first_name: Daniel
  full_name: Kiviet, Daniel
  last_name: Kiviet
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Gasper
  full_name: Tkacik, Gasper
  id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
  last_name: Tkacik
  orcid: 0000-0002-6699-1455
- first_name: Calin C
  full_name: Guet, Calin C
  id: 47F8433E-F248-11E8-B48F-1D18A9856A87
  last_name: Guet
  orcid: 0000-0001-6220-2052
citation:
  ama: Bergmiller T, Andersson AM, Tomasek K, et al. Biased partitioning of the multidrug
    efflux pump AcrAB TolC underlies long lived phenotypic heterogeneity. <i>Science</i>.
    2017;356(6335):311-315. doi:<a href="https://doi.org/10.1126/science.aaf4762">10.1126/science.aaf4762</a>
  apa: Bergmiller, T., Andersson, A. M., Tomasek, K., Balleza, E., Kiviet, D., Hauschild,
    R., … Guet, C. C. (2017). Biased partitioning of the multidrug efflux pump AcrAB
    TolC underlies long lived phenotypic heterogeneity. <i>Science</i>. American Association
    for the Advancement of Science. <a href="https://doi.org/10.1126/science.aaf4762">https://doi.org/10.1126/science.aaf4762</a>
  chicago: Bergmiller, Tobias, Anna M Andersson, Kathrin Tomasek, Enrique Balleza,
    Daniel Kiviet, Robert Hauschild, Gašper Tkačik, and Calin C Guet. “Biased Partitioning
    of the Multidrug Efflux Pump AcrAB TolC Underlies Long Lived Phenotypic Heterogeneity.”
    <i>Science</i>. American Association for the Advancement of Science, 2017. <a
    href="https://doi.org/10.1126/science.aaf4762">https://doi.org/10.1126/science.aaf4762</a>.
  ieee: T. Bergmiller <i>et al.</i>, “Biased partitioning of the multidrug efflux
    pump AcrAB TolC underlies long lived phenotypic heterogeneity,” <i>Science</i>,
    vol. 356, no. 6335. American Association for the Advancement of Science, pp. 311–315,
    2017.
  ista: Bergmiller T, Andersson AM, Tomasek K, Balleza E, Kiviet D, Hauschild R, Tkačik
    G, Guet CC. 2017. Biased partitioning of the multidrug efflux pump AcrAB TolC
    underlies long lived phenotypic heterogeneity. Science. 356(6335), 311–315.
  mla: Bergmiller, Tobias, et al. “Biased Partitioning of the Multidrug Efflux Pump
    AcrAB TolC Underlies Long Lived Phenotypic Heterogeneity.” <i>Science</i>, vol.
    356, no. 6335, American Association for the Advancement of Science, 2017, pp.
    311–15, doi:<a href="https://doi.org/10.1126/science.aaf4762">10.1126/science.aaf4762</a>.
  short: T. Bergmiller, A.M. Andersson, K. Tomasek, E. Balleza, D. Kiviet, R. Hauschild,
    G. Tkačik, C.C. Guet, Science 356 (2017) 311–315.
corr_author: '1'
date_created: 2018-12-11T11:47:48Z
date_published: 2017-04-21T00:00:00Z
date_updated: 2025-09-11T07:05:04Z
day: '21'
department:
- _id: CaGu
- _id: GaTk
- _id: Bio
doi: 10.1126/science.aaf4762
external_id:
  isi:
  - '000399540100060'
intvolume: '       356'
isi: 1
issue: '6335'
language:
- iso: eng
month: '04'
oa_version: None
page: 311 - 315
project:
- _id: 254E9036-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P28844-B27
  name: Biophysics of information processing in gene regulation
publication: Science
publication_identifier:
  issn:
  - 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '7064'
quality_controlled: '1'
related_material:
  record:
  - id: '5560'
    relation: popular_science
    status: public
scopus_import: '1'
status: public
title: Biased partitioning of the multidrug efflux pump AcrAB TolC underlies long
  lived phenotypic heterogeneity
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 356
year: '2017'
...
---
_id: '672'
abstract:
- lang: eng
  text: Trafficking cells frequently transmigrate through epithelial and endothelial
    monolayers. How monolayers cooperate with the penetrating cells to support their
    transit is poorly understood. We studied dendritic cell (DC) entry into lymphatic
    capillaries as a model system for transendothelial migration. We find that the
    chemokine CCL21, which is the decisive guidance cue for intravasation, mainly
    localizes in the trans-Golgi network and intracellular vesicles of lymphatic endothelial
    cells. Upon DC transmigration, these Golgi deposits disperse and CCL21 becomes
    extracellularly enriched at the sites of endothelial cell-cell junctions. When
    we reconstitute the transmigration process in vitro, we find that secretion of
    CCL21-positive vesicles is triggered by a DC contact-induced calcium signal, and
    selective calcium chelation in lymphatic endothelium attenuates transmigration.
    Altogether, our data demonstrate a chemokine-mediated feedback between DCs and
    lymphatic endothelium, which facilitates transendothelial migration.
article_processing_charge: Yes
author:
- first_name: Kari
  full_name: Vaahtomeri, Kari
  id: 368EE576-F248-11E8-B48F-1D18A9856A87
  last_name: Vaahtomeri
  orcid: 0000-0001-7829-3518
- first_name: Markus
  full_name: Brown, Markus
  id: 3DAB9AFC-F248-11E8-B48F-1D18A9856A87
  last_name: Brown
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Ingrid
  full_name: De Vries, Ingrid
  id: 4C7D837E-F248-11E8-B48F-1D18A9856A87
  last_name: De Vries
- first_name: Alexander F
  full_name: Leithner, Alexander F
  id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87
  last_name: Leithner
  orcid: 0000-0002-1073-744X
- first_name: Matthias
  full_name: Mehling, Matthias
  id: 3C23B994-F248-11E8-B48F-1D18A9856A87
  last_name: Mehling
  orcid: 0000-0001-8599-1226
- first_name: Walter
  full_name: Kaufmann, Walter
  id: 3F99E422-F248-11E8-B48F-1D18A9856A87
  last_name: Kaufmann
  orcid: 0000-0001-9735-5315
- 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: Vaahtomeri K, Brown M, Hauschild R, et al. Locally triggered release of the
    chemokine CCL21 promotes dendritic cell transmigration across lymphatic endothelia.
    <i>Cell Reports</i>. 2017;19(5):902-909. doi:<a href="https://doi.org/10.1016/j.celrep.2017.04.027">10.1016/j.celrep.2017.04.027</a>
  apa: Vaahtomeri, K., Brown, M., Hauschild, R., de Vries, I., Leithner, A. F., Mehling,
    M., … Sixt, M. K. (2017). Locally triggered release of the chemokine CCL21 promotes
    dendritic cell transmigration across lymphatic endothelia. <i>Cell Reports</i>.
    Cell Press. <a href="https://doi.org/10.1016/j.celrep.2017.04.027">https://doi.org/10.1016/j.celrep.2017.04.027</a>
  chicago: Vaahtomeri, Kari, Markus Brown, Robert Hauschild, Ingrid de Vries, Alexander
    F Leithner, Matthias Mehling, Walter Kaufmann, and Michael K Sixt. “Locally Triggered
    Release of the Chemokine CCL21 Promotes Dendritic Cell Transmigration across Lymphatic
    Endothelia.” <i>Cell Reports</i>. Cell Press, 2017. <a href="https://doi.org/10.1016/j.celrep.2017.04.027">https://doi.org/10.1016/j.celrep.2017.04.027</a>.
  ieee: K. Vaahtomeri <i>et al.</i>, “Locally triggered release of the chemokine CCL21
    promotes dendritic cell transmigration across lymphatic endothelia,” <i>Cell Reports</i>,
    vol. 19, no. 5. Cell Press, pp. 902–909, 2017.
  ista: Vaahtomeri K, Brown M, Hauschild R, de Vries I, Leithner AF, Mehling M, Kaufmann
    W, Sixt MK. 2017. Locally triggered release of the chemokine CCL21 promotes dendritic
    cell transmigration across lymphatic endothelia. Cell Reports. 19(5), 902–909.
  mla: Vaahtomeri, Kari, et al. “Locally Triggered Release of the Chemokine CCL21
    Promotes Dendritic Cell Transmigration across Lymphatic Endothelia.” <i>Cell Reports</i>,
    vol. 19, no. 5, Cell Press, 2017, pp. 902–09, doi:<a href="https://doi.org/10.1016/j.celrep.2017.04.027">10.1016/j.celrep.2017.04.027</a>.
  short: K. Vaahtomeri, M. Brown, R. Hauschild, I. de Vries, A.F. Leithner, M. Mehling,
    W. Kaufmann, M.K. Sixt, Cell Reports 19 (2017) 902–909.
corr_author: '1'
date_created: 2018-12-11T11:47:50Z
date_published: 2017-05-02T00:00:00Z
date_updated: 2025-09-10T14:27:34Z
day: '02'
ddc:
- '570'
department:
- _id: MiSi
- _id: Bio
- _id: EM-Fac
doi: 10.1016/j.celrep.2017.04.027
ec_funded: 1
external_id:
  isi:
  - '000402124100002'
file:
- access_level: open_access
  checksum: 8fdddaab1f1d76a6ec9ca94dcb6b07a2
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:14:54Z
  date_updated: 2020-07-14T12:47:38Z
  file_id: '5109'
  file_name: IST-2017-900-v1+1_1-s2.0-S2211124717305211-main.pdf
  file_size: 2248814
  relation: main_file
file_date_updated: 2020-07-14T12:47:38Z
has_accepted_license: '1'
intvolume: '        19'
isi: 1
issue: '5'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '05'
oa: 1
oa_version: Published Version
page: 902 - 909
project:
- _id: 25A603A2-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '281556'
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
- _id: 25A8E5EA-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Y 564-B12
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
publication: Cell Reports
publication_identifier:
  issn:
  - 2211-1247
publication_status: published
publisher: Cell Press
publist_id: '7052'
pubrep_id: '900'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Locally triggered release of the chemokine CCL21 promotes dendritic cell transmigration
  across lymphatic endothelia
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: 19
year: '2017'
...
---
_id: '674'
abstract:
- lang: eng
  text: Navigation of cells along gradients of guidance cues is a determining step
    in many developmental and immunological processes. Gradients can either be soluble
    or immobilized to tissues as demonstrated for the haptotactic migration of dendritic
    cells (DCs) toward higher concentrations of immobilized chemokine CCL21. To elucidate
    how gradient characteristics govern cellular response patterns, we here introduce
    an in vitro system allowing to track migratory responses of DCs to precisely controlled
    immobilized gradients of CCL21. We find that haptotactic sensing depends on the
    absolute CCL21 concentration and local steepness of the gradient, consistent with
    a scenario where DC directionality is governed by the signal-to-noise ratio of
    CCL21 binding to the receptor CCR7. We find that the conditions for optimal DC
    guidance are perfectly provided by the CCL21 gradients we measure in vivo. Furthermore,
    we find that CCR7 signal termination by the G-protein-coupled receptor kinase
    6 (GRK6) is crucial for haptotactic but dispensable for chemotactic CCL21 gradient
    sensing in vitro and confirm those observations in vivo. These findings suggest
    that stable, tissue-bound CCL21 gradients as sustainable “roads” ensure optimal
    guidance in vivo.
article_processing_charge: No
author:
- first_name: Jan
  full_name: Schwarz, Jan
  id: 346C1EC6-F248-11E8-B48F-1D18A9856A87
  last_name: Schwarz
- first_name: Veronika
  full_name: Bierbaum, Veronika
  id: 3FD04378-F248-11E8-B48F-1D18A9856A87
  last_name: Bierbaum
- first_name: Kari
  full_name: Vaahtomeri, Kari
  id: 368EE576-F248-11E8-B48F-1D18A9856A87
  last_name: Vaahtomeri
  orcid: 0000-0001-7829-3518
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Markus
  full_name: Brown, Markus
  id: 3DAB9AFC-F248-11E8-B48F-1D18A9856A87
  last_name: Brown
- first_name: Ingrid
  full_name: De Vries, Ingrid
  id: 4C7D837E-F248-11E8-B48F-1D18A9856A87
  last_name: De Vries
- first_name: Alexander F
  full_name: Leithner, Alexander F
  id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87
  last_name: Leithner
  orcid: 0000-0002-1073-744X
- first_name: Anne
  full_name: Reversat, Anne
  id: 35B76592-F248-11E8-B48F-1D18A9856A87
  last_name: Reversat
  orcid: 0000-0003-0666-8928
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
- first_name: Teresa
  full_name: Tarrant, Teresa
  last_name: Tarrant
- first_name: Tobias
  full_name: Bollenbach, Tobias
  id: 3E6DB97A-F248-11E8-B48F-1D18A9856A87
  last_name: Bollenbach
  orcid: 0000-0003-4398-476X
- 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: Schwarz J, Bierbaum V, Vaahtomeri K, et al. Dendritic cells interpret haptotactic
    chemokine gradients in a manner governed by signal to noise ratio and dependent
    on GRK6. <i>Current Biology</i>. 2017;27(9):1314-1325. doi:<a href="https://doi.org/10.1016/j.cub.2017.04.004">10.1016/j.cub.2017.04.004</a>
  apa: Schwarz, J., Bierbaum, V., Vaahtomeri, K., Hauschild, R., Brown, M., de Vries,
    I., … Sixt, M. K. (2017). Dendritic cells interpret haptotactic chemokine gradients
    in a manner governed by signal to noise ratio and dependent on GRK6. <i>Current
    Biology</i>. Cell Press. <a href="https://doi.org/10.1016/j.cub.2017.04.004">https://doi.org/10.1016/j.cub.2017.04.004</a>
  chicago: Schwarz, Jan, Veronika Bierbaum, Kari Vaahtomeri, Robert Hauschild, Markus
    Brown, Ingrid de Vries, Alexander F Leithner, et al. “Dendritic Cells Interpret
    Haptotactic Chemokine Gradients in a Manner Governed by Signal to Noise Ratio
    and Dependent on GRK6.” <i>Current Biology</i>. Cell Press, 2017. <a href="https://doi.org/10.1016/j.cub.2017.04.004">https://doi.org/10.1016/j.cub.2017.04.004</a>.
  ieee: J. Schwarz <i>et al.</i>, “Dendritic cells interpret haptotactic chemokine
    gradients in a manner governed by signal to noise ratio and dependent on GRK6,”
    <i>Current Biology</i>, vol. 27, no. 9. Cell Press, pp. 1314–1325, 2017.
  ista: Schwarz J, Bierbaum V, Vaahtomeri K, Hauschild R, Brown M, de Vries I, Leithner
    AF, Reversat A, Merrin J, Tarrant T, Bollenbach MT, Sixt MK. 2017. Dendritic cells
    interpret haptotactic chemokine gradients in a manner governed by signal to noise
    ratio and dependent on GRK6. Current Biology. 27(9), 1314–1325.
  mla: Schwarz, Jan, et al. “Dendritic Cells Interpret Haptotactic Chemokine Gradients
    in a Manner Governed by Signal to Noise Ratio and Dependent on GRK6.” <i>Current
    Biology</i>, vol. 27, no. 9, Cell Press, 2017, pp. 1314–25, doi:<a href="https://doi.org/10.1016/j.cub.2017.04.004">10.1016/j.cub.2017.04.004</a>.
  short: J. Schwarz, V. Bierbaum, K. Vaahtomeri, R. Hauschild, M. Brown, I. de Vries,
    A.F. Leithner, A. Reversat, J. Merrin, T. Tarrant, M.T. Bollenbach, M.K. Sixt,
    Current Biology 27 (2017) 1314–1325.
corr_author: '1'
date_created: 2018-12-11T11:47:51Z
date_published: 2017-05-09T00:00:00Z
date_updated: 2025-09-10T14:26:47Z
day: '09'
department:
- _id: MiSi
- _id: Bio
- _id: NanoFab
doi: 10.1016/j.cub.2017.04.004
ec_funded: 1
external_id:
  isi:
  - '000400741700021'
intvolume: '        27'
isi: 1
issue: '9'
language:
- iso: eng
month: '05'
oa_version: None
page: 1314 - 1325
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '291734'
  name: International IST Postdoc Fellowship Programme
- _id: 25A8E5EA-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Y 564-B12
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
publication: Current Biology
publication_identifier:
  issn:
  - '09609822'
publication_status: published
publisher: Cell Press
publist_id: '7050'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Dendritic cells interpret haptotactic chemokine gradients in a manner governed
  by signal to noise ratio and dependent on GRK6
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 27
year: '2017'
...
---
_id: '727'
abstract:
- lang: eng
  text: 'Actin filaments polymerizing against membranes power endocytosis, vesicular
    traffic, and cell motility. In vitro reconstitution studies suggest that the structure
    and the dynamics of actin networks respond to mechanical forces. We demonstrate
    that lamellipodial actin of migrating cells responds to mechanical load when membrane
    tension is modulated. In a steady state, migrating cell filaments assume the canonical
    dendritic geometry, defined by Arp2/3-generated 70° branch points. Increased tension
    triggers a dense network with a broadened range of angles, whereas decreased tension
    causes a shift to a sparse configuration dominated by filaments growing perpendicularly
    to the plasma membrane. We show that these responses emerge from the geometry
    of branched actin: when load per filament decreases, elongation speed increases
    and perpendicular filaments gradually outcompete others because they polymerize
    the shortest distance to the membrane, where they are protected from capping.
    This network-intrinsic geometrical adaptation mechanism tunes protrusive force
    in response to mechanical load.'
acknowledged_ssus:
- _id: ScienComp
article_processing_charge: No
author:
- first_name: Jan
  full_name: Mueller, Jan
  last_name: Mueller
- first_name: Gregory
  full_name: Szep, Gregory
  id: 4BFB7762-F248-11E8-B48F-1D18A9856A87
  last_name: Szep
- first_name: Maria
  full_name: Nemethova, Maria
  id: 34E27F1C-F248-11E8-B48F-1D18A9856A87
  last_name: Nemethova
- first_name: Ingrid
  full_name: De Vries, Ingrid
  id: 4C7D837E-F248-11E8-B48F-1D18A9856A87
  last_name: De Vries
- first_name: Arnon
  full_name: Lieber, Arnon
  last_name: Lieber
- first_name: Christoph
  full_name: Winkler, Christoph
  last_name: Winkler
- first_name: Karsten
  full_name: Kruse, Karsten
  last_name: Kruse
- first_name: John
  full_name: Small, John
  last_name: Small
- first_name: Christian
  full_name: Schmeiser, Christian
  last_name: Schmeiser
- first_name: Kinneret
  full_name: Keren, Kinneret
  last_name: Keren
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- 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: Mueller J, Szep G, Nemethova M, et al. Load adaptation of lamellipodial actin
    networks. <i>Cell</i>. 2017;171(1):188-200. doi:<a href="https://doi.org/10.1016/j.cell.2017.07.051">10.1016/j.cell.2017.07.051</a>
  apa: Mueller, J., Szep, G., Nemethova, M., de Vries, I., Lieber, A., Winkler, C.,
    … Sixt, M. K. (2017). Load adaptation of lamellipodial actin networks. <i>Cell</i>.
    Cell Press. <a href="https://doi.org/10.1016/j.cell.2017.07.051">https://doi.org/10.1016/j.cell.2017.07.051</a>
  chicago: Mueller, Jan, Gregory Szep, Maria Nemethova, Ingrid de Vries, Arnon Lieber,
    Christoph Winkler, Karsten Kruse, et al. “Load Adaptation of Lamellipodial Actin
    Networks.” <i>Cell</i>. Cell Press, 2017. <a href="https://doi.org/10.1016/j.cell.2017.07.051">https://doi.org/10.1016/j.cell.2017.07.051</a>.
  ieee: J. Mueller <i>et al.</i>, “Load adaptation of lamellipodial actin networks,”
    <i>Cell</i>, vol. 171, no. 1. Cell Press, pp. 188–200, 2017.
  ista: Mueller J, Szep G, Nemethova M, de Vries I, Lieber A, Winkler C, Kruse K,
    Small J, Schmeiser C, Keren K, Hauschild R, Sixt MK. 2017. Load adaptation of
    lamellipodial actin networks. Cell. 171(1), 188–200.
  mla: Mueller, Jan, et al. “Load Adaptation of Lamellipodial Actin Networks.” <i>Cell</i>,
    vol. 171, no. 1, Cell Press, 2017, pp. 188–200, doi:<a href="https://doi.org/10.1016/j.cell.2017.07.051">10.1016/j.cell.2017.07.051</a>.
  short: J. Mueller, G. Szep, M. Nemethova, I. de Vries, A. Lieber, C. Winkler, K.
    Kruse, J. Small, C. Schmeiser, K. Keren, R. Hauschild, M.K. Sixt, Cell 171 (2017)
    188–200.
corr_author: '1'
date_created: 2018-12-11T11:48:10Z
date_published: 2017-09-21T00:00:00Z
date_updated: 2025-07-10T11:54:27Z
day: '21'
department:
- _id: MiSi
- _id: Bio
doi: 10.1016/j.cell.2017.07.051
ec_funded: 1
external_id:
  isi:
  - '000411331800020'
intvolume: '       171'
isi: 1
issue: '1'
language:
- iso: eng
month: '09'
oa_version: None
page: 188 - 200
project:
- _id: 25AD6156-B435-11E9-9278-68D0E5697425
  grant_number: LS13-029
  name: Modeling of Polarization and Motility of Leukocytes in Three-Dimensional Environments
- _id: 25A603A2-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '281556'
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
publication: Cell
publication_identifier:
  issn:
  - 0092-8674
publication_status: published
publisher: Cell Press
publist_id: '6951'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Load adaptation of lamellipodial actin networks
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 171
year: '2017'
...
---
_id: '676'
abstract:
- lang: eng
  text: The segregation of different cell types into distinct tissues is a fundamental
    process in metazoan development. Differences in cell adhesion and cortex tension
    are commonly thought to drive cell sorting by regulating tissue surface tension
    (TST). However, the role that differential TST plays in cell segregation within
    the developing embryo is as yet unclear. Here, we have analyzed the role of differential
    TST for germ layer progenitor cell segregation during zebrafish gastrulation.
    Contrary to previous observations that differential TST drives germ layer progenitor
    cell segregation in vitro, we show that germ layers display indistinguishable
    TST within the gastrulating embryo, arguing against differential TST driving germ
    layer progenitor cell segregation in vivo. We further show that the osmolarity
    of the interstitial fluid (IF) is an important factor that influences germ layer
    TST in vivo, and that lower osmolarity of the IF compared with standard cell culture
    medium can explain why germ layers display differential TST in culture but not
    in vivo. Finally, we show that directed migration of mesendoderm progenitors is
    required for germ layer progenitor cell segregation and germ layer formation.
article_processing_charge: No
article_type: original
author:
- first_name: Gabriel
  full_name: Krens, Gabriel
  id: 2B819732-F248-11E8-B48F-1D18A9856A87
  last_name: Krens
  orcid: 0000-0003-4761-5996
- first_name: Jim
  full_name: Veldhuis, Jim
  last_name: Veldhuis
- first_name: Vanessa
  full_name: Barone, Vanessa
  id: 419EECCC-F248-11E8-B48F-1D18A9856A87
  last_name: Barone
  orcid: 0000-0003-2676-3367
- first_name: Daniel
  full_name: Capek, Daniel
  id: 31C42484-F248-11E8-B48F-1D18A9856A87
  last_name: Capek
  orcid: 0000-0001-5199-9940
- first_name: Jean-Léon
  full_name: Maître, Jean-Léon
  id: 48F1E0D8-F248-11E8-B48F-1D18A9856A87
  last_name: Maître
  orcid: 0000-0002-3688-1474
- first_name: Wayne
  full_name: Brodland, Wayne
  last_name: Brodland
- first_name: Carl-Philipp J
  full_name: Heisenberg, Carl-Philipp J
  id: 39427864-F248-11E8-B48F-1D18A9856A87
  last_name: Heisenberg
  orcid: 0000-0002-0912-4566
citation:
  ama: Krens G, Veldhuis J, Barone V, et al. Interstitial fluid osmolarity modulates
    the action of differential tissue surface tension in progenitor cell segregation
    during gastrulation. <i>Development</i>. 2017;144(10):1798-1806. doi:<a href="https://doi.org/10.1242/dev.144964">10.1242/dev.144964</a>
  apa: Krens, G., Veldhuis, J., Barone, V., Capek, D., Maître, J.-L., Brodland, W.,
    &#38; Heisenberg, C.-P. J. (2017). Interstitial fluid osmolarity modulates the
    action of differential tissue surface tension in progenitor cell segregation during
    gastrulation. <i>Development</i>. Company of Biologists. <a href="https://doi.org/10.1242/dev.144964">https://doi.org/10.1242/dev.144964</a>
  chicago: Krens, Gabriel, Jim Veldhuis, Vanessa Barone, Daniel Capek, Jean-Léon Maître,
    Wayne Brodland, and Carl-Philipp J Heisenberg. “Interstitial Fluid Osmolarity
    Modulates the Action of Differential Tissue Surface Tension in Progenitor Cell
    Segregation during Gastrulation.” <i>Development</i>. Company of Biologists, 2017.
    <a href="https://doi.org/10.1242/dev.144964">https://doi.org/10.1242/dev.144964</a>.
  ieee: G. Krens <i>et al.</i>, “Interstitial fluid osmolarity modulates the action
    of differential tissue surface tension in progenitor cell segregation during gastrulation,”
    <i>Development</i>, vol. 144, no. 10. Company of Biologists, pp. 1798–1806, 2017.
  ista: Krens G, Veldhuis J, Barone V, Capek D, Maître J-L, Brodland W, Heisenberg
    C-PJ. 2017. Interstitial fluid osmolarity modulates the action of differential
    tissue surface tension in progenitor cell segregation during gastrulation. Development.
    144(10), 1798–1806.
  mla: Krens, Gabriel, et al. “Interstitial Fluid Osmolarity Modulates the Action
    of Differential Tissue Surface Tension in Progenitor Cell Segregation during Gastrulation.”
    <i>Development</i>, vol. 144, no. 10, Company of Biologists, 2017, pp. 1798–806,
    doi:<a href="https://doi.org/10.1242/dev.144964">10.1242/dev.144964</a>.
  short: G. Krens, J. Veldhuis, V. Barone, D. Capek, J.-L. Maître, W. Brodland, C.-P.J.
    Heisenberg, Development 144 (2017) 1798–1806.
corr_author: '1'
date_created: 2018-12-11T11:47:52Z
date_published: 2017-05-15T00:00:00Z
date_updated: 2026-06-02T22:31:15Z
day: '15'
ddc:
- '570'
department:
- _id: Bio
- _id: CaHe
doi: 10.1242/dev.144964
external_id:
  isi:
  - '000402275900007'
  pmid:
  - '28512197'
file:
- access_level: open_access
  checksum: bc25125fb664706cdf180e061429f91d
  content_type: application/pdf
  creator: dernst
  date_created: 2019-09-24T06:56:22Z
  date_updated: 2020-07-14T12:47:39Z
  file_id: '6905'
  file_name: 2017_Development_Krens.pdf
  file_size: 8194516
  relation: main_file
file_date_updated: 2020-07-14T12:47:39Z
has_accepted_license: '1'
intvolume: '       144'
isi: 1
issue: '10'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: 1798 - 1806
pmid: 1
publication: Development
publication_identifier:
  issn:
  - 0950-1991
publication_status: published
publisher: Company of Biologists
publist_id: '7047'
quality_controlled: '1'
related_material:
  record:
  - id: '961'
    relation: dissertation_contains
    status: public
  - id: '50'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Interstitial fluid osmolarity modulates the action of differential tissue surface
  tension in progenitor cell segregation during gastrulation
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: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 144
year: '2017'
...
---
_id: '661'
abstract:
- lang: eng
  text: During embryonic development, mechanical forces are essential for cellular
    rearrangements driving tissue morphogenesis. Here, we show that in the early zebrafish
    embryo, friction forces are generated at the interface between anterior axial
    mesoderm (prechordal plate, ppl) progenitors migrating towards the animal pole
    and neurectoderm progenitors moving in the opposite direction towards the vegetal
    pole of the embryo. These friction forces lead to global rearrangement of cells
    within the neurectoderm and determine the position of the neural anlage. Using
    a combination of experiments and simulations, we show that this process depends
    on hydrodynamic coupling between neurectoderm and ppl as a result of E-cadherin-mediated
    adhesion between those tissues. Our data thus establish the emergence of friction
    forces at the interface between moving tissues as a critical force-generating
    process shaping the embryo.
acknowledged_ssus:
- _id: SSU
article_processing_charge: No
author:
- first_name: Michael
  full_name: Smutny, Michael
  id: 3FE6E4E8-F248-11E8-B48F-1D18A9856A87
  last_name: Smutny
  orcid: 0000-0002-5920-9090
- first_name: Zsuzsa
  full_name: Ákos, Zsuzsa
  last_name: Ákos
- first_name: Silvia
  full_name: Grigolon, Silvia
  last_name: Grigolon
- first_name: Shayan
  full_name: Shamipour, Shayan
  id: 40B34FE2-F248-11E8-B48F-1D18A9856A87
  last_name: Shamipour
- first_name: Verena
  full_name: Ruprecht, Verena
  last_name: Ruprecht
- first_name: Daniel
  full_name: Capek, Daniel
  id: 31C42484-F248-11E8-B48F-1D18A9856A87
  last_name: Capek
  orcid: 0000-0001-5199-9940
- first_name: Martin
  full_name: Behrndt, Martin
  id: 3ECECA3A-F248-11E8-B48F-1D18A9856A87
  last_name: Behrndt
- first_name: Ekaterina
  full_name: Papusheva, Ekaterina
  id: 41DB591E-F248-11E8-B48F-1D18A9856A87
  last_name: Papusheva
- first_name: Masazumi
  full_name: Tada, Masazumi
  last_name: Tada
- first_name: Björn
  full_name: Hof, Björn
  id: 3A374330-F248-11E8-B48F-1D18A9856A87
  last_name: Hof
  orcid: 0000-0003-2057-2754
- first_name: Tamás
  full_name: Vicsek, Tamás
  last_name: Vicsek
- first_name: Guillaume
  full_name: Salbreux, Guillaume
  last_name: Salbreux
- first_name: Carl-Philipp J
  full_name: Heisenberg, Carl-Philipp J
  id: 39427864-F248-11E8-B48F-1D18A9856A87
  last_name: Heisenberg
  orcid: 0000-0002-0912-4566
citation:
  ama: Smutny M, Ákos Z, Grigolon S, et al. Friction forces position the neural anlage.
    <i>Nature Cell Biology</i>. 2017;19:306-317. doi:<a href="https://doi.org/10.1038/ncb3492">10.1038/ncb3492</a>
  apa: Smutny, M., Ákos, Z., Grigolon, S., Shamipour, S., Ruprecht, V., Capek, D.,
    … Heisenberg, C.-P. J. (2017). Friction forces position the neural anlage. <i>Nature
    Cell Biology</i>. Nature Publishing Group. <a href="https://doi.org/10.1038/ncb3492">https://doi.org/10.1038/ncb3492</a>
  chicago: Smutny, Michael, Zsuzsa Ákos, Silvia Grigolon, Shayan Shamipour, Verena
    Ruprecht, Daniel Capek, Martin Behrndt, et al. “Friction Forces Position the Neural
    Anlage.” <i>Nature Cell Biology</i>. Nature Publishing Group, 2017. <a href="https://doi.org/10.1038/ncb3492">https://doi.org/10.1038/ncb3492</a>.
  ieee: M. Smutny <i>et al.</i>, “Friction forces position the neural anlage,” <i>Nature
    Cell Biology</i>, vol. 19. Nature Publishing Group, pp. 306–317, 2017.
  ista: Smutny M, Ákos Z, Grigolon S, Shamipour S, Ruprecht V, Capek D, Behrndt M,
    Papusheva E, Tada M, Hof B, Vicsek T, Salbreux G, Heisenberg C-PJ. 2017. Friction
    forces position the neural anlage. Nature Cell Biology. 19, 306–317.
  mla: Smutny, Michael, et al. “Friction Forces Position the Neural Anlage.” <i>Nature
    Cell Biology</i>, vol. 19, Nature Publishing Group, 2017, pp. 306–17, doi:<a href="https://doi.org/10.1038/ncb3492">10.1038/ncb3492</a>.
  short: M. Smutny, Z. Ákos, S. Grigolon, S. Shamipour, V. Ruprecht, D. Capek, M.
    Behrndt, E. Papusheva, M. Tada, B. Hof, T. Vicsek, G. Salbreux, C.-P.J. Heisenberg,
    Nature Cell Biology 19 (2017) 306–317.
corr_author: '1'
date_created: 2018-12-11T11:47:46Z
date_published: 2017-03-27T00:00:00Z
date_updated: 2026-06-02T22:31:15Z
day: '27'
department:
- _id: CaHe
- _id: BjHo
- _id: Bio
doi: 10.1038/ncb3492
ec_funded: 1
external_id:
  isi:
  - '000397917000009'
  pmid:
  - '28346437'
intvolume: '        19'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://europepmc.org/articles/pmc5635970
month: '03'
oa: 1
oa_version: Submitted Version
page: 306 - 317
pmid: 1
project:
- _id: 25152F3A-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '306589'
  name: Decoding the complexity of turbulence at its origin
- _id: 252ABD0A-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I930-B20
  name: Control of Epithelial Cell Layer Spreading in Zebrafish
publication: Nature Cell Biology
publication_identifier:
  issn:
  - 1465-7392
publication_status: published
publisher: Nature Publishing Group
publist_id: '7074'
quality_controlled: '1'
related_material:
  record:
  - id: '8350'
    relation: dissertation_contains
    status: public
  - id: '50'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Friction forces position the neural anlage
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 19
year: '2017'
...
---
_id: '1154'
abstract:
- lang: eng
  text: "Cellular locomotion is a central hallmark of eukaryotic life. It is governed
    by cell-extrinsic molecular factors, which can either emerge in the soluble phase
    or as immobilized, often adhesive ligands. To encode for direction, every cue
    must be present as a spatial or temporal gradient. Here, we developed a microfluidic
    chamber that allows measurement of cell migration in combined response to surface
    immobilized and soluble molecular gradients. As a proof of principle we study
    the response of dendritic cells to their major guidance cues, chemokines. The
    majority of data on chemokine gradient sensing is based on in vitro studies employing
    soluble gradients. Despite evidence suggesting that in vivo chemokines are often
    immobilized to sugar residues, limited information is available how cells respond
    to immobilized chemokines. We tracked migration of dendritic cells towards immobilized
    gradients of the chemokine CCL21 and varying superimposed soluble gradients of
    CCL19. Differential migratory patterns illustrate the potential of our setup to
    quantitatively study the competitive response to both types of gradients. Beyond
    chemokines our approach is broadly applicable to alternative systems of chemo-
    and haptotaxis such as cells migrating along gradients of adhesion receptor ligands
    vs. any soluble cue. \r\n"
acknowledgement: 'This work was supported by the Swiss National Science Foundation
  (Ambizione fellowship; PZ00P3-154733 to M.M.), the Swiss Multiple Sclerosis Society
  (research support to M.M.), a fellowship from the Boehringer Ingelheim Fonds (BIF)
  to J.S., the European Research Council (grant ERC GA 281556) and a START award from
  the Austrian Science Foundation (FWF) to M.S. #BioimagingFacility'
article_number: '36440'
article_processing_charge: No
author:
- first_name: Jan
  full_name: Schwarz, Jan
  id: 346C1EC6-F248-11E8-B48F-1D18A9856A87
  last_name: Schwarz
- first_name: Veronika
  full_name: Bierbaum, Veronika
  id: 3FD04378-F248-11E8-B48F-1D18A9856A87
  last_name: Bierbaum
- first_name: Jack
  full_name: Merrin, Jack
  id: 4515C308-F248-11E8-B48F-1D18A9856A87
  last_name: Merrin
  orcid: 0000-0001-5145-4609
- first_name: Tino
  full_name: Frank, Tino
  last_name: Frank
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Mark Tobias
  full_name: Bollenbach, Mark Tobias
  id: 3E6DB97A-F248-11E8-B48F-1D18A9856A87
  last_name: Bollenbach
  orcid: 0000-0003-4398-476X
- first_name: Savaş
  full_name: Tay, Savaş
  last_name: Tay
- 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: Matthias
  full_name: Mehling, Matthias
  id: 3C23B994-F248-11E8-B48F-1D18A9856A87
  last_name: Mehling
  orcid: 0000-0001-8599-1226
citation:
  ama: Schwarz J, Bierbaum V, Merrin J, et al. A microfluidic device for measuring
    cell migration towards substrate bound and soluble chemokine gradients. <i>Scientific
    Reports</i>. 2016;6. doi:<a href="https://doi.org/10.1038/srep36440">10.1038/srep36440</a>
  apa: Schwarz, J., Bierbaum, V., Merrin, J., Frank, T., Hauschild, R., Bollenbach,
    M. T., … Mehling, M. (2016). A microfluidic device for measuring cell migration
    towards substrate bound and soluble chemokine gradients. <i>Scientific Reports</i>.
    Nature Publishing Group. <a href="https://doi.org/10.1038/srep36440">https://doi.org/10.1038/srep36440</a>
  chicago: Schwarz, Jan, Veronika Bierbaum, Jack Merrin, Tino Frank, Robert Hauschild,
    Mark Tobias Bollenbach, Savaş Tay, Michael K Sixt, and Matthias Mehling. “A Microfluidic
    Device for Measuring Cell Migration towards Substrate Bound and Soluble Chemokine
    Gradients.” <i>Scientific Reports</i>. Nature Publishing Group, 2016. <a href="https://doi.org/10.1038/srep36440">https://doi.org/10.1038/srep36440</a>.
  ieee: J. Schwarz <i>et al.</i>, “A microfluidic device for measuring cell migration
    towards substrate bound and soluble chemokine gradients,” <i>Scientific Reports</i>,
    vol. 6. Nature Publishing Group, 2016.
  ista: Schwarz J, Bierbaum V, Merrin J, Frank T, Hauschild R, Bollenbach MT, Tay
    S, Sixt MK, Mehling M. 2016. A microfluidic device for measuring cell migration
    towards substrate bound and soluble chemokine gradients. Scientific Reports. 6,
    36440.
  mla: Schwarz, Jan, et al. “A Microfluidic Device for Measuring Cell Migration towards
    Substrate Bound and Soluble Chemokine Gradients.” <i>Scientific Reports</i>, vol.
    6, 36440, Nature Publishing Group, 2016, doi:<a href="https://doi.org/10.1038/srep36440">10.1038/srep36440</a>.
  short: J. Schwarz, V. Bierbaum, J. Merrin, T. Frank, R. Hauschild, M.T. Bollenbach,
    S. Tay, M.K. Sixt, M. Mehling, Scientific Reports 6 (2016).
date_created: 2018-12-11T11:50:27Z
date_published: 2016-11-07T00:00:00Z
date_updated: 2025-09-22T09:56:13Z
day: '07'
ddc:
- '579'
department:
- _id: MiSi
- _id: NanoFab
- _id: Bio
- _id: ToBo
doi: 10.1038/srep36440
ec_funded: 1
external_id:
  isi:
  - '000387118300001'
file:
- access_level: open_access
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:09:32Z
  date_updated: 2018-12-12T10:09:32Z
  file_id: '4756'
  file_name: IST-2017-744-v1+1_srep36440.pdf
  file_size: 2353456
  relation: main_file
file_date_updated: 2018-12-12T10:09:32Z
has_accepted_license: '1'
intvolume: '         6'
isi: 1
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
project:
- _id: 25A603A2-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '281556'
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
- _id: 25A8E5EA-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Y 564-B12
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
publication: Scientific Reports
publication_status: published
publisher: Nature Publishing Group
publist_id: '6204'
pubrep_id: '744'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A microfluidic device for measuring cell migration towards substrate bound
  and soluble chemokine gradients
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: 6
year: '2016'
...
---
_id: '5555'
abstract:
- lang: eng
  text: This FIJI script calculates the population average of the migration speed
    as a function of time of all cells from wide field microscopy movies.
article_processing_charge: No
author:
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
citation:
  ama: Hauschild R. Fiji script to determine average speed and direction of migration
    of cells. 2016. doi:<a href="https://doi.org/10.15479/AT:ISTA:44">10.15479/AT:ISTA:44</a>
  apa: Hauschild, R. (2016). Fiji script to determine average speed and direction
    of migration of cells. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/AT:ISTA:44">https://doi.org/10.15479/AT:ISTA:44</a>
  chicago: Hauschild, Robert. “Fiji Script to Determine Average Speed and Direction
    of Migration of Cells.” Institute of Science and Technology Austria, 2016. <a
    href="https://doi.org/10.15479/AT:ISTA:44">https://doi.org/10.15479/AT:ISTA:44</a>.
  ieee: R. Hauschild, “Fiji script to determine average speed and direction of migration
    of cells.” Institute of Science and Technology Austria, 2016.
  ista: Hauschild R. 2016. Fiji script to determine average speed and direction of
    migration of cells, Institute of Science and Technology Austria, <a href="https://doi.org/10.15479/AT:ISTA:44">10.15479/AT:ISTA:44</a>.
  mla: Hauschild, Robert. <i>Fiji Script to Determine Average Speed and Direction
    of Migration of Cells</i>. Institute of Science and Technology Austria, 2016,
    doi:<a href="https://doi.org/10.15479/AT:ISTA:44">10.15479/AT:ISTA:44</a>.
  short: R. Hauschild, (2016).
datarep_id: '44'
date_created: 2018-12-12T12:31:31Z
date_published: 2016-07-08T00:00:00Z
date_updated: 2024-02-21T13:50:06Z
day: '08'
ddc:
- '570'
department:
- _id: Bio
doi: 10.15479/AT:ISTA:44
file:
- access_level: open_access
  checksum: 9f96cddbcd4ed689f48712ffe234d5e5
  content_type: application/zip
  creator: system
  date_created: 2018-12-12T13:03:03Z
  date_updated: 2020-07-14T12:47:02Z
  file_id: '5621'
  file_name: IST-2016-44-v1+1_migrationAnalyzer.zip
  file_size: 20692
  relation: main_file
file_date_updated: 2020-07-14T12:47:02Z
has_accepted_license: '1'
keyword:
- cell migration
- wide field microscopy
- FIJI
month: '07'
oa: 1
oa_version: Published Version
publisher: Institute of Science and Technology Austria
status: public
title: Fiji script to determine average speed and direction of migration of cells
tmp:
  image: /images/cc_0.png
  legal_code_url: https://creativecommons.org/publicdomain/zero/1.0/legalcode
  name: Creative Commons Public Domain Dedication (CC0 1.0)
  short: CC0 (1.0)
type: research_data
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2016'
...
---
_id: '1321'
abstract:
- lang: eng
  text: Most migrating cells extrude their front by the force of actin polymerization.
    Polymerization requires an initial nucleation step, which is mediated by factors
    establishing either parallel filaments in the case of filopodia or branched filaments
    that form the branched lamellipodial network. Branches are considered essential
    for regular cell motility and are initiated by the Arp2/3 complex, which in turn
    is activated by nucleation-promoting factors of the WASP and WAVE families. Here
    we employed rapid amoeboid crawling leukocytes and found that deletion of the
    WAVE complex eliminated actin branching and thus lamellipodia formation. The cells
    were left with parallel filaments at the leading edge, which translated, depending
    on the differentiation status of the cell, into a unipolar pointed cell shape
    or cells with multiple filopodia. Remarkably, unipolar cells migrated with increased
    speed and enormous directional persistence, while they were unable to turn towards
    chemotactic gradients. Cells with multiple filopodia retained chemotactic activity
    but their migration was progressively impaired with increasing geometrical complexity
    of the extracellular environment. These findings establish that diversified leading
    edge protrusions serve as explorative structures while they slow down actual locomotion.
acknowledged_ssus:
- _id: SSU
acknowledgement: "This work was supported by the German Research Foundation (DFG)
  Priority Program SP 1464 to T.E.B.S. and M.S., and European Research Council (ERC
  GA 281556) and Human Frontiers Program grants to M.S.\r\nService Units of IST Austria
  for excellent technical support."
article_processing_charge: No
article_type: original
author:
- first_name: Alexander F
  full_name: Leithner, Alexander F
  id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87
  last_name: Leithner
  orcid: 0000-0002-1073-744X
- first_name: Alexander
  full_name: Eichner, Alexander
  id: 4DFA52AE-F248-11E8-B48F-1D18A9856A87
  last_name: Eichner
- first_name: Jan
  full_name: Müller, Jan
  id: AD07FDB4-0F61-11EA-8158-C4CC64CEAA8D
  last_name: Müller
- first_name: Anne
  full_name: Reversat, Anne
  id: 35B76592-F248-11E8-B48F-1D18A9856A87
  last_name: Reversat
  orcid: 0000-0003-0666-8928
- first_name: Markus
  full_name: Brown, Markus
  id: 3DAB9AFC-F248-11E8-B48F-1D18A9856A87
  last_name: Brown
- 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: David
  full_name: De Gorter, David
  last_name: De Gorter
- first_name: Florian
  full_name: Schur, Florian
  id: 48AD8942-F248-11E8-B48F-1D18A9856A87
  last_name: Schur
  orcid: 0000-0003-4790-8078
- first_name: Jonathan
  full_name: Bayerl, Jonathan
  last_name: Bayerl
- first_name: Ingrid
  full_name: De Vries, Ingrid
  id: 4C7D837E-F248-11E8-B48F-1D18A9856A87
  last_name: De Vries
- first_name: Stefan
  full_name: Wieser, Stefan
  id: 355AA5A0-F248-11E8-B48F-1D18A9856A87
  last_name: Wieser
  orcid: 0000-0002-2670-2217
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Frank
  full_name: Lai, Frank
  last_name: Lai
- first_name: Markus
  full_name: Moser, Markus
  last_name: Moser
- first_name: Dontscho
  full_name: Kerjaschki, Dontscho
  last_name: Kerjaschki
- first_name: Klemens
  full_name: Rottner, Klemens
  last_name: Rottner
- first_name: Victor
  full_name: Small, Victor
  last_name: Small
- first_name: Theresia
  full_name: Stradal, Theresia
  last_name: Stradal
- 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: Leithner AF, Eichner A, Müller J, et al. Diversified actin protrusions promote
    environmental exploration but are dispensable for locomotion of leukocytes. <i>Nature
    Cell Biology</i>. 2016;18:1253-1259. doi:<a href="https://doi.org/10.1038/ncb3426">10.1038/ncb3426</a>
  apa: Leithner, A. F., Eichner, A., Müller, J., Reversat, A., Brown, M., Schwarz,
    J., … Sixt, M. K. (2016). Diversified actin protrusions promote environmental
    exploration but are dispensable for locomotion of leukocytes. <i>Nature Cell Biology</i>.
    Nature Publishing Group. <a href="https://doi.org/10.1038/ncb3426">https://doi.org/10.1038/ncb3426</a>
  chicago: Leithner, Alexander F, Alexander Eichner, Jan Müller, Anne Reversat, Markus
    Brown, Jan Schwarz, Jack Merrin, et al. “Diversified Actin Protrusions Promote
    Environmental Exploration but Are Dispensable for Locomotion of Leukocytes.” <i>Nature
    Cell Biology</i>. Nature Publishing Group, 2016. <a href="https://doi.org/10.1038/ncb3426">https://doi.org/10.1038/ncb3426</a>.
  ieee: A. F. Leithner <i>et al.</i>, “Diversified actin protrusions promote environmental
    exploration but are dispensable for locomotion of leukocytes,” <i>Nature Cell
    Biology</i>, vol. 18. Nature Publishing Group, pp. 1253–1259, 2016.
  ista: Leithner AF, Eichner A, Müller J, Reversat A, Brown M, Schwarz J, Merrin J,
    De Gorter D, Schur FK, Bayerl J, de Vries I, Wieser S, Hauschild R, Lai F, Moser
    M, Kerjaschki D, Rottner K, Small V, Stradal T, Sixt MK. 2016. Diversified actin
    protrusions promote environmental exploration but are dispensable for locomotion
    of leukocytes. Nature Cell Biology. 18, 1253–1259.
  mla: Leithner, Alexander F., et al. “Diversified Actin Protrusions Promote Environmental
    Exploration but Are Dispensable for Locomotion of Leukocytes.” <i>Nature Cell
    Biology</i>, vol. 18, Nature Publishing Group, 2016, pp. 1253–59, doi:<a href="https://doi.org/10.1038/ncb3426">10.1038/ncb3426</a>.
  short: A.F. Leithner, A. Eichner, J. Müller, A. Reversat, M. Brown, J. Schwarz,
    J. Merrin, D. De Gorter, F.K. Schur, J. Bayerl, I. de Vries, S. Wieser, R. Hauschild,
    F. Lai, M. Moser, D. Kerjaschki, K. Rottner, V. Small, T. Stradal, M.K. Sixt,
    Nature Cell Biology 18 (2016) 1253–1259.
corr_author: '1'
date_created: 2018-12-11T11:51:21Z
date_published: 2016-10-24T00:00:00Z
date_updated: 2026-06-02T22:30:14Z
day: '24'
ddc:
- '570'
department:
- _id: MiSi
- _id: NanoFab
- _id: Bio
doi: 10.1038/ncb3426
ec_funded: 1
external_id:
  isi:
  - '000387165600018'
file:
- access_level: open_access
  checksum: e1411cb7c99a2d9089c178a6abef25e7
  content_type: application/pdf
  creator: dernst
  date_created: 2020-05-14T16:33:46Z
  date_updated: 2020-07-14T12:44:43Z
  file_id: '7844'
  file_name: 2018_NatureCell_Leithner.pdf
  file_size: 4433280
  relation: main_file
file_date_updated: 2020-07-14T12:44:43Z
has_accepted_license: '1'
intvolume: '        18'
isi: 1
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-sa/4.0/
month: '10'
oa: 1
oa_version: Submitted Version
page: 1253 - 1259
project:
- _id: 25A603A2-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '281556'
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
publication: Nature Cell Biology
publication_status: published
publisher: Nature Publishing Group
publist_id: '5949'
quality_controlled: '1'
related_material:
  record:
  - id: '323'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Diversified actin protrusions promote environmental exploration but are dispensable
  for locomotion of leukocytes
tmp:
  image: /images/cc_by_nc_sa.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC
    BY-NC-SA 4.0)
  short: CC BY-NC-SA (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 18
year: '2016'
...
---
_id: '1862'
abstract:
- lang: eng
  text: The prominent and evolutionarily ancient role of the plant hormone auxin is
    the regulation of cell expansion. Cell expansion requires ordered arrangement
    of the cytoskeleton but molecular mechanisms underlying its regulation by signalling
    molecules including auxin are unknown. Here we show in the model plant Arabidopsis
    thaliana that in elongating cells exogenous application of auxin or redistribution
    of endogenous auxin induces very rapid microtubule re-orientation from transverse
    to longitudinal, coherent with the inhibition of cell expansion. This fast auxin
    effect requires auxin binding protein 1 (ABP1) and involves a contribution of
    downstream signalling components such as ROP6 GTPase, ROP-interactive protein
    RIC1 and the microtubule-severing protein katanin. These components are required
    for rapid auxin-and ABP1-mediated re-orientation of microtubules to regulate cell
    elongation in roots and dark-grown hypocotyls as well as asymmetric growth during
    gravitropic responses.
acknowledgement: We thank R. Dixit for performing complementary experiments, D. W.
  Ehrhardt and T. Hashimoto for providing the seeds of TUB6–RFP and EB1b–GFP respectively,
  E. Zazimalova, J. Petrasek and M. Fendrych for discussing the manuscript and J.
  Leung for text optimization. This work was supported by the European Research Council
  (project ERC-2011-StG-20101109-PSDP, to J.F.), ANR blanc AuxiWall project (ANR-11-BSV5-0007,
  to C.P.-R. and L.G.) and the Agency for Innovation by Science and Technology (IWT)
  (to H.R.). This work benefited from the facilities and expertise of the Imagif Cell
  Biology platform (http://www.imagif.cnrs.fr), which is supported by the Conseil
  Général de l’Essonne.
article_processing_charge: No
article_type: original
author:
- first_name: Xu
  full_name: Chen, Xu
  id: 4E5ADCAA-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Laurie
  full_name: Grandont, Laurie
  last_name: Grandont
- first_name: Hongjiang
  full_name: Li, Hongjiang
  id: 33CA54A6-F248-11E8-B48F-1D18A9856A87
  last_name: Li
  orcid: 0000-0001-5039-9660
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Sébastien
  full_name: Paque, Sébastien
  last_name: Paque
- first_name: Anas
  full_name: Abuzeineh, Anas
  last_name: Abuzeineh
- first_name: Hana
  full_name: Rakusova, Hana
  id: 4CAAA450-78D2-11EA-8E57-B40A396E08BA
  last_name: Rakusova
- first_name: Eva
  full_name: Benková, Eva
  id: 38F4F166-F248-11E8-B48F-1D18A9856A87
  last_name: Benková
  orcid: 0000-0002-8510-9739
- first_name: Catherine
  full_name: Perrot Rechenmann, Catherine
  last_name: Perrot Rechenmann
- first_name: Jirí
  full_name: Friml, Jirí
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
citation:
  ama: Chen X, Grandont L, Li H, et al. Inhibition of cell expansion by rapid ABP1-mediated
    auxin effect on microtubules. <i>Nature</i>. 2014;516(729):90-93. doi:<a href="https://doi.org/10.1038/nature13889">10.1038/nature13889</a>
  apa: Chen, X., Grandont, L., Li, H., Hauschild, R., Paque, S., Abuzeineh, A., …
    Friml, J. (2014). Inhibition of cell expansion by rapid ABP1-mediated auxin effect
    on microtubules. <i>Nature</i>. Nature Publishing Group. <a href="https://doi.org/10.1038/nature13889">https://doi.org/10.1038/nature13889</a>
  chicago: Chen, Xu, Laurie Grandont, Hongjiang Li, Robert Hauschild, Sébastien Paque,
    Anas Abuzeineh, Hana Rakusova, Eva Benková, Catherine Perrot Rechenmann, and Jiří
    Friml. “Inhibition of Cell Expansion by Rapid ABP1-Mediated Auxin Effect on Microtubules.”
    <i>Nature</i>. Nature Publishing Group, 2014. <a href="https://doi.org/10.1038/nature13889">https://doi.org/10.1038/nature13889</a>.
  ieee: X. Chen <i>et al.</i>, “Inhibition of cell expansion by rapid ABP1-mediated
    auxin effect on microtubules,” <i>Nature</i>, vol. 516, no. 729. Nature Publishing
    Group, pp. 90–93, 2014.
  ista: Chen X, Grandont L, Li H, Hauschild R, Paque S, Abuzeineh A, Rakusova H, Benková
    E, Perrot Rechenmann C, Friml J. 2014. Inhibition of cell expansion by rapid ABP1-mediated
    auxin effect on microtubules. Nature. 516(729), 90–93.
  mla: Chen, Xu, et al. “Inhibition of Cell Expansion by Rapid ABP1-Mediated Auxin
    Effect on Microtubules.” <i>Nature</i>, vol. 516, no. 729, Nature Publishing Group,
    2014, pp. 90–93, doi:<a href="https://doi.org/10.1038/nature13889">10.1038/nature13889</a>.
  short: X. Chen, L. Grandont, H. Li, R. Hauschild, S. Paque, A. Abuzeineh, H. Rakusova,
    E. Benková, C. Perrot Rechenmann, J. Friml, Nature 516 (2014) 90–93.
corr_author: '1'
date_created: 2018-12-11T11:54:25Z
date_published: 2014-12-04T00:00:00Z
date_updated: 2025-09-29T13:10:05Z
day: '04'
department:
- _id: JiFr
- _id: Bio
- _id: EvBe
doi: 10.1038/nature13889
ec_funded: 1
external_id:
  isi:
  - '000346310800045'
  pmid:
  - '25409144'
intvolume: '       516'
isi: 1
issue: '729'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4257754/
month: '12'
oa: 1
oa_version: Submitted Version
page: 90 - 93
pmid: 1
project:
- _id: 25716A02-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '282300'
  name: Polarity and subcellular dynamics in plants
publication: Nature
publication_identifier:
  eissn:
  - 1476-4687
  issn:
  - 0028-0836
publication_status: published
publisher: Nature Publishing Group
publist_id: '5237'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Inhibition of cell expansion by rapid ABP1-mediated auxin effect on microtubules
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 516
year: '2014'
...
---
_id: '2022'
abstract:
- lang: eng
  text: Radial glial progenitors (RGPs) are responsible for producing nearly all neocortical
    neurons. To gain insight into the patterns of RGP division and neuron production,
    we quantitatively analyzed excitatory neuron genesis in the mouse neocortex using
    Mosaic Analysis with Double Markers, which provides single-cell resolution of
    progenitor division patterns and potential in vivo. We found that RGPs progress
    through a coherent program in which their proliferative potential diminishes in
    a predictable manner. Upon entry into the neurogenic phase, individual RGPs produce
    ∼8–9 neurons distributed in both deep and superficial layers, indicating a unitary
    output in neuronal production. Removal of OTX1, a transcription factor transiently
    expressed in RGPs, results in both deep- and superficial-layer neuron loss and
    a reduction in neuronal unit size. Moreover, ∼1/6 of neurogenic RGPs proceed to
    produce glia. These results suggest that progenitor behavior and histogenesis
    in the mammalian neocortex conform to a remarkably orderly and deterministic program.
article_processing_charge: No
author:
- first_name: Peng
  full_name: Gao, Peng
  last_name: Gao
- first_name: Maria P
  full_name: Postiglione, Maria P
  id: 2C67902A-F248-11E8-B48F-1D18A9856A87
  last_name: Postiglione
- first_name: Teresa
  full_name: Krieger, Teresa
  last_name: Krieger
- first_name: Luisirene
  full_name: Hernandez, Luisirene
  last_name: Hernandez
- first_name: Chao
  full_name: Wang, Chao
  last_name: Wang
- first_name: Zhi
  full_name: Han, Zhi
  last_name: Han
- first_name: Carmen
  full_name: Streicher, Carmen
  id: 36BCB99C-F248-11E8-B48F-1D18A9856A87
  last_name: Streicher
- first_name: Ekaterina
  full_name: Papusheva, Ekaterina
  id: 41DB591E-F248-11E8-B48F-1D18A9856A87
  last_name: Papusheva
- first_name: Ryan
  full_name: Insolera, Ryan
  last_name: Insolera
- first_name: Kritika
  full_name: Chugh, Kritika
  last_name: Chugh
- first_name: Oren
  full_name: Kodish, Oren
  last_name: Kodish
- first_name: Kun
  full_name: Huang, Kun
  last_name: Huang
- first_name: Benjamin
  full_name: Simons, Benjamin
  last_name: Simons
- first_name: Liqun
  full_name: Luo, Liqun
  last_name: Luo
- first_name: Simon
  full_name: Hippenmeyer, Simon
  id: 37B36620-F248-11E8-B48F-1D18A9856A87
  last_name: Hippenmeyer
  orcid: 0000-0003-2279-1061
- first_name: Song
  full_name: Shi, Song
  last_name: Shi
citation:
  ama: Gao P, Postiglione MP, Krieger T, et al. Deterministic progenitor behavior
    and unitary production of neurons in the neocortex. <i>Cell</i>. 2014;159(4):775-788.
    doi:<a href="https://doi.org/10.1016/j.cell.2014.10.027">10.1016/j.cell.2014.10.027</a>
  apa: Gao, P., Postiglione, M. P., Krieger, T., Hernandez, L., Wang, C., Han, Z.,
    … Shi, S. (2014). Deterministic progenitor behavior and unitary production of
    neurons in the neocortex. <i>Cell</i>. Cell Press. <a href="https://doi.org/10.1016/j.cell.2014.10.027">https://doi.org/10.1016/j.cell.2014.10.027</a>
  chicago: Gao, Peng, Maria P Postiglione, Teresa Krieger, Luisirene Hernandez, Chao
    Wang, Zhi Han, Carmen Streicher, et al. “Deterministic Progenitor Behavior and
    Unitary Production of Neurons in the Neocortex.” <i>Cell</i>. Cell Press, 2014.
    <a href="https://doi.org/10.1016/j.cell.2014.10.027">https://doi.org/10.1016/j.cell.2014.10.027</a>.
  ieee: P. Gao <i>et al.</i>, “Deterministic progenitor behavior and unitary production
    of neurons in the neocortex,” <i>Cell</i>, vol. 159, no. 4. Cell Press, pp. 775–788,
    2014.
  ista: Gao P, Postiglione MP, Krieger T, Hernandez L, Wang C, Han Z, Streicher C,
    Papusheva E, Insolera R, Chugh K, Kodish O, Huang K, Simons B, Luo L, Hippenmeyer
    S, Shi S. 2014. Deterministic progenitor behavior and unitary production of neurons
    in the neocortex. Cell. 159(4), 775–788.
  mla: Gao, Peng, et al. “Deterministic Progenitor Behavior and Unitary Production
    of Neurons in the Neocortex.” <i>Cell</i>, vol. 159, no. 4, Cell Press, 2014,
    pp. 775–88, doi:<a href="https://doi.org/10.1016/j.cell.2014.10.027">10.1016/j.cell.2014.10.027</a>.
  short: P. Gao, M.P. Postiglione, T. Krieger, L. Hernandez, C. Wang, Z. Han, C. Streicher,
    E. Papusheva, R. Insolera, K. Chugh, O. Kodish, K. Huang, B. Simons, L. Luo, S.
    Hippenmeyer, S. Shi, Cell 159 (2014) 775–788.
corr_author: '1'
date_created: 2018-12-11T11:55:16Z
date_published: 2014-11-06T00:00:00Z
date_updated: 2025-09-29T11:57:49Z
day: '06'
ddc:
- '570'
department:
- _id: SiHi
- _id: Bio
doi: 10.1016/j.cell.2014.10.027
ec_funded: 1
external_id:
  isi:
  - '000344522000011'
file:
- access_level: open_access
  checksum: 6c5de8329bb2ffa71cba9fda750f14ce
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:08:47Z
  date_updated: 2020-07-14T12:45:25Z
  file_id: '4709'
  file_name: IST-2016-423-v1+1_1-s2.0-S0092867414013154-main.pdf
  file_size: 4435787
  relation: main_file
file_date_updated: 2020-07-14T12:45:25Z
has_accepted_license: '1'
intvolume: '       159'
isi: 1
issue: '4'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: 775 - 788
project:
- _id: 25D61E48-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '618444'
  name: Molecular Mechanisms of Cerebral Cortex Development
- _id: 25D7962E-B435-11E9-9278-68D0E5697425
  grant_number: RGP0053/2014
  name: Quantitative Structure-Function Analysis of Cerebral Cortex Assembly at Clonal
    Level
publication: Cell
publication_status: published
publisher: Cell Press
publist_id: '5050'
pubrep_id: '423'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Deterministic progenitor behavior and unitary production of neurons in the
  neocortex
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: 159
year: '2014'
...
---
_id: '2839'
abstract:
- lang: eng
  text: Directional guidance of cells via gradients of chemokines is considered crucial
    for embryonic development, cancer dissemination, and immune responses. Nevertheless,
    the concept still lacks direct experimental confirmation in vivo. Here, we identify
    endogenous gradients of the chemokine CCL21 within mouse skin and show that they
    guide dendritic cells toward lymphatic vessels. Quantitative imaging reveals depots
    of CCL21 within lymphatic endothelial cells and steeply decaying gradients within
    the perilymphatic interstitium. These gradients match the migratory patterns of
    the dendritic cells, which directionally approach vessels from a distance of up
    to 90-micrometers. Interstitial CCL21 is immobilized to heparan sulfates, and
    its experimental delocalization or swamping the endogenous gradients abolishes
    directed migration. These findings functionally establish the concept of haptotaxis,
    directed migration along immobilized gradients, in tissues.
acknowledgement: We thank M. Frank for technical assistance and S. Cremer, P. Schmalhorst,
  and E. Kiermaier for critical reading of the manuscript. This work was supported
  by a Humboldt Foundation postdoctoral fellowship (to M.W.), the German Research
  Foundation (Si1323 1,2 to M.S.), the Human Frontier Science Program (HFSP RGP0058/2011
  to M.S.), the European Research Council (ERC StG 281556 to M.S.), and the Swiss
  National Science Foundation (31003A 127474 to D.F.L., 130488 to S.A.L.).
article_processing_charge: No
article_type: original
author:
- first_name: Michele
  full_name: Weber, Michele
  id: 3A3FC708-F248-11E8-B48F-1D18A9856A87
  last_name: Weber
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Jan
  full_name: Schwarz, Jan
  id: 346C1EC6-F248-11E8-B48F-1D18A9856A87
  last_name: Schwarz
- first_name: Christine
  full_name: Moussion, Christine
  id: 3356F664-F248-11E8-B48F-1D18A9856A87
  last_name: Moussion
- first_name: Ingrid
  full_name: De Vries, Ingrid
  id: 4C7D837E-F248-11E8-B48F-1D18A9856A87
  last_name: De Vries
- first_name: Daniel
  full_name: Legler, Daniel
  last_name: Legler
- first_name: Sanjiv
  full_name: Luther, Sanjiv
  last_name: Luther
- first_name: Mark Tobias
  full_name: Bollenbach, Mark Tobias
  id: 3E6DB97A-F248-11E8-B48F-1D18A9856A87
  last_name: Bollenbach
  orcid: 0000-0003-4398-476X
- 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: Weber M, Hauschild R, Schwarz J, et al. Interstitial dendritic cell guidance
    by haptotactic chemokine gradients. <i>Science</i>. 2013;339(6117):328-332. doi:<a
    href="https://doi.org/10.1126/science.1228456">10.1126/science.1228456</a>
  apa: Weber, M., Hauschild, R., Schwarz, J., Moussion, C., de Vries, I., Legler,
    D., … Sixt, M. K. (2013). Interstitial dendritic cell guidance by haptotactic
    chemokine gradients. <i>Science</i>. American Association for the Advancement
    of Science. <a href="https://doi.org/10.1126/science.1228456">https://doi.org/10.1126/science.1228456</a>
  chicago: Weber, Michele, Robert Hauschild, Jan Schwarz, Christine Moussion, Ingrid
    de Vries, Daniel Legler, Sanjiv Luther, Mark Tobias Bollenbach, and Michael K
    Sixt. “Interstitial Dendritic Cell Guidance by Haptotactic Chemokine Gradients.”
    <i>Science</i>. American Association for the Advancement of Science, 2013. <a
    href="https://doi.org/10.1126/science.1228456">https://doi.org/10.1126/science.1228456</a>.
  ieee: M. Weber <i>et al.</i>, “Interstitial dendritic cell guidance by haptotactic
    chemokine gradients,” <i>Science</i>, vol. 339, no. 6117. American Association
    for the Advancement of Science, pp. 328–332, 2013.
  ista: Weber M, Hauschild R, Schwarz J, Moussion C, de Vries I, Legler D, Luther
    S, Bollenbach MT, Sixt MK. 2013. Interstitial dendritic cell guidance by haptotactic
    chemokine gradients. Science. 339(6117), 328–332.
  mla: Weber, Michele, et al. “Interstitial Dendritic Cell Guidance by Haptotactic
    Chemokine Gradients.” <i>Science</i>, vol. 339, no. 6117, American Association
    for the Advancement of Science, 2013, pp. 328–32, doi:<a href="https://doi.org/10.1126/science.1228456">10.1126/science.1228456</a>.
  short: M. Weber, R. Hauschild, J. Schwarz, C. Moussion, I. de Vries, D. Legler,
    S. Luther, M.T. Bollenbach, M.K. Sixt, Science 339 (2013) 328–332.
corr_author: '1'
date_created: 2018-12-11T11:59:52Z
date_published: 2013-01-18T00:00:00Z
date_updated: 2025-09-29T13:45:52Z
day: '18'
department:
- _id: MiSi
- _id: Bio
doi: 10.1126/science.1228456
ec_funded: 1
external_id:
  isi:
  - '000313622000047'
intvolume: '       339'
isi: 1
issue: '6117'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://kops.uni-konstanz.de/bitstream/123456789/26341/2/Weber_263418.pdf
month: '01'
oa: 1
oa_version: Published Version
page: 328 - 332
project:
- _id: 25A603A2-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '281556'
  name: Cytoskeletal force generation and force transduction of migrating leukocytes
- _id: 25ABD200-B435-11E9-9278-68D0E5697425
  grant_number: RGP0058/2011
  name: 'Cell migration in complex environments: from in vivo experiments to theoretical
    models'
publication: Science
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '3959'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Interstitial dendritic cell guidance by haptotactic chemokine gradients
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 339
year: '2013'
...
---
OA_type: closed access
_id: '2950'
abstract:
- lang: eng
  text: Contractile actomyosin rings drive various fundamental morphogenetic processes
    ranging from cytokinesis to wound healing. Actomyosin rings are generally thought
    to function by circumferential contraction. Here, we show that the spreading of
    the enveloping cell layer (EVL) over the yolk cell during zebrafish gastrulation
    is driven by a contractile actomyosin ring. In contrast to previous suggestions,
    we find that this ring functions not only by circumferential contraction but also
    by a flow-friction mechanism. This generates a pulling force through resistance
    against retrograde actomyosin flow. EVL spreading proceeds normally in situations
    where circumferential contraction is unproductive, indicating that the flow-friction
    mechanism is sufficient. Thus, actomyosin rings can function in epithelial morphogenesis
    through a combination of cable-constriction and flow-friction mechanisms.
acknowledged_ssus:
- _id: SSU
acknowledgement: We are grateful to M. Sixt, T. Bollenbach, and E. Martin-Blanco for
  advice and the service facilities of the IST Austria and MPI-CBG for continuous
  help. M.B., G.S., S.W.G., and C.-P.H. synergistically and equally developed the
  presented ideas and the experimental and theoretical approaches. M.B. and P.C. performed
  the experiments; G.S. developed the theory; and R.H., F.O., and J.R. contributed
  to the experimental work. This work was supported by a grant from the Fonds zur
  Förderung der wissenschaftlichen Forschung (FWF) and the Deutsche Forschungsgemeinschaft
  (DFG) (I930-B20) to C.-P.H., S.W.G., and G.S.
article_processing_charge: No
article_type: original
author:
- first_name: Martin
  full_name: Behrndt, Martin
  id: 3ECECA3A-F248-11E8-B48F-1D18A9856A87
  last_name: Behrndt
- first_name: Guillaume
  full_name: Salbreux, Guillaume
  last_name: Salbreux
- first_name: Pedro
  full_name: Campinho, Pedro
  id: 3AFBBC42-F248-11E8-B48F-1D18A9856A87
  last_name: Campinho
  orcid: 0000-0002-8526-5416
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Felix
  full_name: Oswald, Felix
  last_name: Oswald
- first_name: Julia
  full_name: Roensch, Julia
  id: 4220E59C-F248-11E8-B48F-1D18A9856A87
  last_name: Roensch
- first_name: Stephan
  full_name: Grill, Stephan
  last_name: Grill
- first_name: Carl-Philipp J
  full_name: Heisenberg, Carl-Philipp J
  id: 39427864-F248-11E8-B48F-1D18A9856A87
  last_name: Heisenberg
  orcid: 0000-0002-0912-4566
citation:
  ama: Behrndt M, Salbreux G, Campinho P, et al. Forces driving epithelial spreading
    in zebrafish gastrulation. <i>Science</i>. 2012;338(6104):257-260. doi:<a href="https://doi.org/10.1126/science.1224143">10.1126/science.1224143</a>
  apa: Behrndt, M., Salbreux, G., Campinho, P., Hauschild, R., Oswald, F., Roensch,
    J., … Heisenberg, C.-P. J. (2012). Forces driving epithelial spreading in zebrafish
    gastrulation. <i>Science</i>. American Association for the Advancement of Science.
    <a href="https://doi.org/10.1126/science.1224143">https://doi.org/10.1126/science.1224143</a>
  chicago: Behrndt, Martin, Guillaume Salbreux, Pedro Campinho, Robert Hauschild,
    Felix Oswald, Julia Roensch, Stephan Grill, and Carl-Philipp J Heisenberg. “Forces
    Driving Epithelial Spreading in Zebrafish Gastrulation.” <i>Science</i>. American
    Association for the Advancement of Science, 2012. <a href="https://doi.org/10.1126/science.1224143">https://doi.org/10.1126/science.1224143</a>.
  ieee: M. Behrndt <i>et al.</i>, “Forces driving epithelial spreading in zebrafish
    gastrulation,” <i>Science</i>, vol. 338, no. 6104. American Association for the
    Advancement of Science, pp. 257–260, 2012.
  ista: Behrndt M, Salbreux G, Campinho P, Hauschild R, Oswald F, Roensch J, Grill
    S, Heisenberg C-PJ. 2012. Forces driving epithelial spreading in zebrafish gastrulation.
    Science. 338(6104), 257–260.
  mla: Behrndt, Martin, et al. “Forces Driving Epithelial Spreading in Zebrafish Gastrulation.”
    <i>Science</i>, vol. 338, no. 6104, American Association for the Advancement of
    Science, 2012, pp. 257–60, doi:<a href="https://doi.org/10.1126/science.1224143">10.1126/science.1224143</a>.
  short: M. Behrndt, G. Salbreux, P. Campinho, R. Hauschild, F. Oswald, J. Roensch,
    S. Grill, C.-P.J. Heisenberg, Science 338 (2012) 257–260.
corr_author: '1'
date_created: 2018-12-11T12:00:30Z
date_published: 2012-10-12T00:00:00Z
date_updated: 2026-03-09T14:56:18Z
day: '12'
department:
- _id: CaHe
- _id: Bio
doi: 10.1126/science.1224143
external_id:
  isi:
  - '000309712300046'
  pmid:
  - '23066079'
intvolume: '       338'
isi: 1
issue: '6104'
language:
- iso: eng
month: '10'
oa_version: None
page: 257 - 260
pmid: 1
project:
- _id: 252ABD0A-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I930-B20
  name: Control of Epithelial Cell Layer Spreading in Zebrafish
publication: Science
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '3778'
quality_controlled: '1'
related_material:
  record:
  - id: '1403'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Forces driving epithelial spreading in zebrafish gastrulation
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 338
year: '2012'
...
---
_id: '9943'
abstract:
- lang: eng
  text: Segmentation is the process of partitioning digital images into meaningful
    regions. The analysis of biological high content images often requires segmentation
    as a first step. We propose ilastik as an easy-to-use tool which allows the user
    without expertise in image processing to perform segmentation and classification
    in a unified way. ilastik learns from labels provided by the user through a convenient
    mouse interface. Based on these labels, ilastik infers a problem specific segmentation.
    A random forest classifier is used in the learning step, in which each pixel's
    neighborhood is characterized by a set of generic (nonlinear) features. ilastik
    supports up to three spatial plus one spectral dimension and makes use of all
    dimensions in the feature calculation. ilastik provides realtime feedback that
    enables the user to interactively refine the segmentation result and hence further
    fine-tune the classifier. An uncertainty measure guides the user to ambiguous
    regions in the images. Real time performance is achieved by multi-threading which
    fully exploits the capabilities of modern multi-core machines. Once a classifier
    has been trained on a set of representative images, it can be exported and used
    to automatically process a very large number of images (e.g. using the CellProfiler
    pipeline). ilastik is an open source project and released under the BSD license
    at www.ilastik.org.
article_processing_charge: No
author:
- 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: Christoph
  full_name: Straehle, Christoph
  last_name: Straehle
- first_name: Ullrich
  full_name: Köthe, Ullrich
  last_name: Köthe
- first_name: Fred A.
  full_name: Hamprecht, Fred A.
  last_name: Hamprecht
citation:
  ama: 'Sommer CM, Straehle C, Köthe U, Hamprecht FA. Ilastik: Interactive learning
    and segmentation toolkit. In: <i>2011 IEEE International Symposium on Biomedical
    Imaging: From Nano to Micro</i>. Institute of Electrical and Electronics Engineers;
    2011. doi:<a href="https://doi.org/10.1109/isbi.2011.5872394">10.1109/isbi.2011.5872394</a>'
  apa: 'Sommer, C. M., Straehle, C., Köthe, U., &#38; Hamprecht, F. A. (2011). Ilastik:
    Interactive learning and segmentation toolkit. In <i>2011 IEEE International Symposium
    on Biomedical Imaging: from Nano to Micro</i>. Chicago, Illinois, USA: Institute
    of Electrical and Electronics Engineers. <a href="https://doi.org/10.1109/isbi.2011.5872394">https://doi.org/10.1109/isbi.2011.5872394</a>'
  chicago: 'Sommer, Christoph M, Christoph Straehle, Ullrich Köthe, and Fred A. Hamprecht.
    “Ilastik: Interactive Learning and Segmentation Toolkit.” In <i>2011 IEEE International
    Symposium on Biomedical Imaging: From Nano to Micro</i>. Institute of Electrical
    and Electronics Engineers, 2011. <a href="https://doi.org/10.1109/isbi.2011.5872394">https://doi.org/10.1109/isbi.2011.5872394</a>.'
  ieee: 'C. M. Sommer, C. Straehle, U. Köthe, and F. A. Hamprecht, “Ilastik: Interactive
    learning and segmentation toolkit,” in <i>2011 IEEE International Symposium on
    Biomedical Imaging: from Nano to Micro</i>, Chicago, Illinois, USA, 2011.'
  ista: 'Sommer CM, Straehle C, Köthe U, Hamprecht FA. 2011. Ilastik: Interactive
    learning and segmentation toolkit. 2011 IEEE International Symposium on Biomedical
    Imaging: from Nano to Micro. ISBI: International Symposium on Biomedical Imaging.'
  mla: 'Sommer, Christoph M., et al. “Ilastik: Interactive Learning and Segmentation
    Toolkit.” <i>2011 IEEE International Symposium on Biomedical Imaging: From Nano
    to Micro</i>, Institute of Electrical and Electronics Engineers, 2011, doi:<a
    href="https://doi.org/10.1109/isbi.2011.5872394">10.1109/isbi.2011.5872394</a>.'
  short: 'C.M. Sommer, C. Straehle, U. Köthe, F.A. Hamprecht, in:, 2011 IEEE International
    Symposium on Biomedical Imaging: From Nano to Micro, Institute of Electrical and
    Electronics Engineers, 2011.'
conference:
  end_date: 2011-04-02
  location: Chicago, Illinois, USA
  name: 'ISBI: International Symposium on Biomedical Imaging'
  start_date: 2011-03-30
date_created: 2021-08-19T11:49:58Z
date_published: 2011-06-09T00:00:00Z
date_updated: 2023-02-23T14:13:38Z
day: '09'
department:
- _id: Bio
doi: 10.1109/isbi.2011.5872394
extern: '1'
keyword:
- image segmentation
- biomedical imaging
- three dimensional displays
- neurons
- retina
- observers
- image color analysis
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.researchgate.net/publication/224241106_Ilastik_Interactive_learning_and_segmentation_toolkit
month: '06'
oa: 1
oa_version: Preprint
publication: '2011 IEEE International Symposium on Biomedical Imaging: from Nano to
  Micro'
publication_identifier:
  eissn:
  - 1945-8452
  isbn:
  - 978-1-4244-4127-3
  issn:
  - 1945-7928
publication_status: published
publisher: Institute of Electrical and Electronics Engineers
quality_controlled: '1'
status: public
title: 'Ilastik: Interactive learning and segmentation toolkit'
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2011'
...
---
_id: '4157'
abstract:
- lang: eng
  text: Integrin- and cadherin-mediated adhesion is central for cell and tissue morphogenesis,
    allowing cells and tissues to change shape without loosing integrity. Studies
    predominantly in cell culture showed that mechanosensation through adhesion structures
    is achieved by force-mediated modulation of their molecular composition. The specific
    molecular composition of adhesion sites in turn determines their signalling activity
    and dynamic reorganization. Here, we will review how adhesion sites respond to
    mecanical stimuli, and how spatially and temporally regulated signalling from
    different adhesion sites controls cell migration and tissue morphogenesis.
acknowledged_ssus:
- _id: Bio
article_processing_charge: No
author:
- first_name: Ekaterina
  full_name: Papusheva, Ekaterina
  id: 41DB591E-F248-11E8-B48F-1D18A9856A87
  last_name: Papusheva
- first_name: Carl-Philipp J
  full_name: Heisenberg, Carl-Philipp J
  id: 39427864-F248-11E8-B48F-1D18A9856A87
  last_name: Heisenberg
  orcid: 0000-0002-0912-4566
citation:
  ama: 'Papusheva E, Heisenberg C-PJ. Spatial organization of adhesion: force-dependent
    regulation and function in tissue morphogenesis. <i>EMBO Journal</i>. 2010;29(16):2753-2768.
    doi:<a href="https://doi.org/10.1038/emboj.2010.182">10.1038/emboj.2010.182</a>'
  apa: 'Papusheva, E., &#38; Heisenberg, C.-P. J. (2010). Spatial organization of
    adhesion: force-dependent regulation and function in tissue morphogenesis. <i>EMBO
    Journal</i>. Wiley-Blackwell. <a href="https://doi.org/10.1038/emboj.2010.182">https://doi.org/10.1038/emboj.2010.182</a>'
  chicago: 'Papusheva, Ekaterina, and Carl-Philipp J Heisenberg. “Spatial Organization
    of Adhesion: Force-Dependent Regulation and Function in Tissue Morphogenesis.”
    <i>EMBO Journal</i>. Wiley-Blackwell, 2010. <a href="https://doi.org/10.1038/emboj.2010.182">https://doi.org/10.1038/emboj.2010.182</a>.'
  ieee: 'E. Papusheva and C.-P. J. Heisenberg, “Spatial organization of adhesion:
    force-dependent regulation and function in tissue morphogenesis,” <i>EMBO Journal</i>,
    vol. 29, no. 16. Wiley-Blackwell, pp. 2753–2768, 2010.'
  ista: 'Papusheva E, Heisenberg C-PJ. 2010. Spatial organization of adhesion: force-dependent
    regulation and function in tissue morphogenesis. EMBO Journal. 29(16), 2753–2768.'
  mla: 'Papusheva, Ekaterina, and Carl-Philipp J. Heisenberg. “Spatial Organization
    of Adhesion: Force-Dependent Regulation and Function in Tissue Morphogenesis.”
    <i>EMBO Journal</i>, vol. 29, no. 16, Wiley-Blackwell, 2010, pp. 2753–68, doi:<a
    href="https://doi.org/10.1038/emboj.2010.182">10.1038/emboj.2010.182</a>.'
  short: E. Papusheva, C.-P.J. Heisenberg, EMBO Journal 29 (2010) 2753–2768.
date_created: 2018-12-11T12:07:17Z
date_published: 2010-08-18T00:00:00Z
date_updated: 2025-09-30T09:29:30Z
day: '18'
department:
- _id: Bio
- _id: CaHe
doi: 10.1038/emboj.2010.182
external_id:
  isi:
  - '000281006400009'
  pmid:
  - '20717145'
intvolume: '        29'
isi: 1
issue: '16'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2924654/
month: '08'
oa: 1
oa_version: Submitted Version
page: 2753 - 2768
pmid: 1
publication: EMBO Journal
publication_status: published
publisher: Wiley-Blackwell
publist_id: '1962'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Spatial organization of adhesion: force-dependent regulation and function
  in tissue morphogenesis'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 29
year: '2010'
...
