[{"author":[{"full_name":"Jankowiak, Gaspard","last_name":"Jankowiak","first_name":"Gaspard"},{"last_name":"Peurichard","first_name":"Diane","full_name":"Peurichard, Diane"},{"full_name":"Reversat, Anne","orcid":"0000-0003-0666-8928","id":"35B76592-F248-11E8-B48F-1D18A9856A87","last_name":"Reversat","first_name":"Anne"},{"first_name":"Christian","last_name":"Schmeiser","full_name":"Schmeiser, Christian"},{"id":"41E9FBEA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6620-9179","first_name":"Michael K","last_name":"Sixt","full_name":"Sixt, Michael K"}],"date_created":"2020-03-31T11:25:05Z","date_updated":"2023-08-18T10:18:56Z","volume":30,"year":"2020","acknowledgement":"This work has been supported by the Vienna Science and Technology Fund, Grant no. LS13-029. G.J. and C.S. also acknowledge support by the Austrian Science Fund, Grants no. W1245, F 65, and W1261, as well as by the Fondation Sciences Mathématiques de Paris, and by Paris-Sciences-et-Lettres.","publication_status":"published","publisher":"World Scientific","department":[{"_id":"MiSi"}],"month":"03","publication_identifier":{"issn":["02182025"]},"doi":"10.1142/S021820252050013X","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://arxiv.org/abs/1903.09426","open_access":"1"}],"external_id":{"arxiv":["1903.09426"],"isi":["000525349900003"]},"oa":1,"isi":1,"quality_controlled":"1","project":[{"name":"Modeling of Polarization and Motility of Leukocytes in Three-Dimensional Environments","grant_number":"LS13-029","_id":"25AD6156-B435-11E9-9278-68D0E5697425"}],"abstract":[{"lang":"eng","text":"A two-dimensional mathematical model for cells migrating without adhesion capabilities is presented and analyzed. Cells are represented by their cortex, which is modeled as an elastic curve, subject to an internal pressure force. Net polymerization or depolymerization in the cortex is modeled via local addition or removal of material, driving a cortical flow. The model takes the form of a fully nonlinear degenerate parabolic system. An existence analysis is carried out by adapting ideas from the theory of gradient flows. Numerical simulations show that these simple rules can account for the behavior observed in experiments, suggesting a possible mechanical mechanism for adhesion-independent motility."}],"issue":"3","type":"journal_article","oa_version":"Preprint","_id":"7623","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","title":"Modeling adhesion-independent cell migration","status":"public","intvolume":" 30","day":"18","article_processing_charge":"No","scopus_import":"1","date_published":"2020-03-18T00:00:00Z","publication":"Mathematical Models and Methods in Applied Sciences","citation":{"ama":"Jankowiak G, Peurichard D, Reversat A, Schmeiser C, Sixt MK. Modeling adhesion-independent cell migration. Mathematical Models and Methods in Applied Sciences. 2020;30(3):513-537. doi:10.1142/S021820252050013X","ieee":"G. Jankowiak, D. Peurichard, A. Reversat, C. Schmeiser, and M. K. Sixt, “Modeling adhesion-independent cell migration,” Mathematical Models and Methods in Applied Sciences, vol. 30, no. 3. World Scientific, pp. 513–537, 2020.","apa":"Jankowiak, G., Peurichard, D., Reversat, A., Schmeiser, C., & Sixt, M. K. (2020). Modeling adhesion-independent cell migration. Mathematical Models and Methods in Applied Sciences. World Scientific. https://doi.org/10.1142/S021820252050013X","ista":"Jankowiak G, Peurichard D, Reversat A, Schmeiser C, Sixt MK. 2020. Modeling adhesion-independent cell migration. Mathematical Models and Methods in Applied Sciences. 30(3), 513–537.","short":"G. Jankowiak, D. Peurichard, A. Reversat, C. Schmeiser, M.K. Sixt, Mathematical Models and Methods in Applied Sciences 30 (2020) 513–537.","mla":"Jankowiak, Gaspard, et al. “Modeling Adhesion-Independent Cell Migration.” Mathematical Models and Methods in Applied Sciences, vol. 30, no. 3, World Scientific, 2020, pp. 513–37, doi:10.1142/S021820252050013X.","chicago":"Jankowiak, Gaspard, Diane Peurichard, Anne Reversat, Christian Schmeiser, and Michael K Sixt. “Modeling Adhesion-Independent Cell Migration.” Mathematical Models and Methods in Applied Sciences. World Scientific, 2020. https://doi.org/10.1142/S021820252050013X."},"article_type":"original","page":"513-537"},{"doi":"10.1038/s41586-020-2283-z","language":[{"iso":"eng"}],"acknowledged_ssus":[{"_id":"Bio"},{"_id":"LifeSc"},{"_id":"M-Shop"}],"external_id":{"isi":["000532688300008"]},"project":[{"name":"Cytoskeletal force generation and force transduction of migrating leukocytes","call_identifier":"FP7","grant_number":"281556","_id":"25A603A2-B435-11E9-9278-68D0E5697425"},{"name":"Cellular navigation along spatial gradients","call_identifier":"H2020","grant_number":"724373","_id":"25FE9508-B435-11E9-9278-68D0E5697425"},{"call_identifier":"FWF","name":"Mechanical adaptation of lamellipodial actin","grant_number":"P29911","_id":"26018E70-B435-11E9-9278-68D0E5697425"},{"_id":"260AA4E2-B435-11E9-9278-68D0E5697425","grant_number":"747687","call_identifier":"H2020","name":"Mechanical Adaptation of Lamellipodial Actin Networks in Migrating Cells"}],"isi":1,"quality_controlled":"1","publication_identifier":{"eissn":["14764687"],"issn":["00280836"]},"month":"06","related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"14697"},{"status":"public","relation":"dissertation_contains","id":"12401"}],"link":[{"description":"News on IST Homepage","relation":"press_release","url":"https://ist.ac.at/en/news/off-road-mode-enables-mobile-cells-to-move-freely/"}]},"author":[{"orcid":"0000-0003-0666-8928","id":"35B76592-F248-11E8-B48F-1D18A9856A87","last_name":"Reversat","first_name":"Anne","full_name":"Reversat, Anne"},{"orcid":"0000-0001-6120-3723","id":"397A88EE-F248-11E8-B48F-1D18A9856A87","last_name":"Gärtner","first_name":"Florian R","full_name":"Gärtner, Florian R"},{"last_name":"Merrin","first_name":"Jack","orcid":"0000-0001-5145-4609","id":"4515C308-F248-11E8-B48F-1D18A9856A87","full_name":"Merrin, Jack"},{"first_name":"Julian A","last_name":"Stopp","id":"489E3F00-F248-11E8-B48F-1D18A9856A87","full_name":"Stopp, Julian A"},{"last_name":"Tasciyan","first_name":"Saren","orcid":"0000-0003-1671-393X","id":"4323B49C-F248-11E8-B48F-1D18A9856A87","full_name":"Tasciyan, Saren"},{"orcid":"0000-0002-2862-8372","id":"2A67C376-F248-11E8-B48F-1D18A9856A87","last_name":"Aguilera Servin","first_name":"Juan L","full_name":"Aguilera Servin, Juan L"},{"last_name":"De Vries","first_name":"Ingrid","id":"4C7D837E-F248-11E8-B48F-1D18A9856A87","full_name":"De Vries, Ingrid"},{"orcid":"0000-0001-9843-3522","id":"4E01D6B4-F248-11E8-B48F-1D18A9856A87","last_name":"Hauschild","first_name":"Robert","full_name":"Hauschild, Robert"},{"full_name":"Hons, Miroslav","first_name":"Miroslav","last_name":"Hons","id":"4167FE56-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6625-3348"},{"last_name":"Piel","first_name":"Matthieu","full_name":"Piel, Matthieu"},{"first_name":"Andrew","last_name":"Callan-Jones","full_name":"Callan-Jones, Andrew"},{"first_name":"Raphael","last_name":"Voituriez","full_name":"Voituriez, Raphael"},{"full_name":"Sixt, Michael K","last_name":"Sixt","first_name":"Michael K","orcid":"0000-0002-6620-9179","id":"41E9FBEA-F248-11E8-B48F-1D18A9856A87"}],"volume":582,"date_updated":"2024-03-28T23:30:24Z","date_created":"2020-05-24T22:01:01Z","acknowledgement":"We thank A. Leithner and J. Renkawitz for discussion and critical reading of the manuscript; J. Schwarz and M. Mehling for establishing the microfluidic setups; the Bioimaging Facility of IST Austria for excellent support, as well as the Life Science Facility and the Miba Machine Shop of IST Austria; and F. N. Arslan, L. E. Burnett and L. Li for their work during their rotation in the IST PhD programme. This work was supported by the European Research Council (ERC StG 281556 and CoG 724373) to M.S. and grants from the Austrian Science Fund (FWF P29911) and the WWTF to M.S. M.H. was supported by the European Regional Development Fund Project (CZ.02.1.01/0.0/0.0/15_003/0000476). F.G. received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement no. 747687.","year":"2020","publisher":"Springer Nature","department":[{"_id":"NanoFab"},{"_id":"Bio"},{"_id":"MiSi"}],"publication_status":"published","ec_funded":1,"date_published":"2020-06-25T00:00:00Z","citation":{"short":"A. Reversat, F.R. Gärtner, J. Merrin, J.A. Stopp, S. Tasciyan, J.L. Aguilera Servin, I. de Vries, R. Hauschild, M. Hons, M. Piel, A. Callan-Jones, R. Voituriez, M.K. Sixt, Nature 582 (2020) 582–585.","mla":"Reversat, Anne, et al. “Cellular Locomotion Using Environmental Topography.” Nature, vol. 582, Springer Nature, 2020, pp. 582–585, doi:10.1038/s41586-020-2283-z.","chicago":"Reversat, Anne, Florian R Gärtner, Jack Merrin, Julian A Stopp, Saren Tasciyan, Juan L Aguilera Servin, Ingrid de Vries, et al. “Cellular Locomotion Using Environmental Topography.” Nature. Springer Nature, 2020. https://doi.org/10.1038/s41586-020-2283-z.","ama":"Reversat A, Gärtner FR, Merrin J, et al. Cellular locomotion using environmental topography. Nature. 2020;582:582–585. doi:10.1038/s41586-020-2283-z","apa":"Reversat, A., Gärtner, F. R., Merrin, J., Stopp, J. A., Tasciyan, S., Aguilera Servin, J. L., … Sixt, M. K. (2020). Cellular locomotion using environmental topography. Nature. Springer Nature. https://doi.org/10.1038/s41586-020-2283-z","ieee":"A. Reversat et al., “Cellular locomotion using environmental topography,” Nature, vol. 582. Springer Nature, pp. 582–585, 2020.","ista":"Reversat A, Gärtner FR, Merrin J, Stopp JA, Tasciyan S, Aguilera Servin JL, de Vries I, Hauschild R, Hons M, Piel M, Callan-Jones A, Voituriez R, Sixt MK. 2020. Cellular locomotion using environmental topography. Nature. 582, 582–585."},"publication":"Nature","page":"582–585","article_type":"original","article_processing_charge":"No","day":"25","scopus_import":"1","oa_version":"None","_id":"7885","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","intvolume":" 582","status":"public","title":"Cellular locomotion using environmental topography","abstract":[{"lang":"eng","text":"Eukaryotic cells migrate by coupling the intracellular force of the actin cytoskeleton to the environment. While force coupling is usually mediated by transmembrane adhesion receptors, especially those of the integrin family, amoeboid cells such as leukocytes can migrate extremely fast despite very low adhesive forces1. Here we show that leukocytes cannot only migrate under low adhesion but can also transmit forces in the complete absence of transmembrane force coupling. When confined within three-dimensional environments, they use the topographical features of the substrate to propel themselves. Here the retrograde flow of the actin cytoskeleton follows the texture of the substrate, creating retrograde shear forces that are sufficient to drive the cell body forwards. Notably, adhesion-dependent and adhesion-independent migration are not mutually exclusive, but rather are variants of the same principle of coupling retrograde actin flow to the environment and thus can potentially operate interchangeably and simultaneously. As adhesion-free migration is independent of the chemical composition of the environment, it renders cells completely autonomous in their locomotive behaviour."}],"type":"journal_article"},{"month":"11","publication_identifier":{"issn":["00221007"]},"language":[{"iso":"eng"}],"doi":"10.1084/jem.20181934","isi":1,"quality_controlled":"1","oa":1,"tmp":{"name":"Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode","image":"/images/cc_by_nc_sa.png","short":"CC BY-NC-SA (4.0)"},"external_id":{"isi":["000451920600002"]},"license":"https://creativecommons.org/licenses/by-nc-sa/4.0/","file_date_updated":"2020-07-14T12:47:09Z","date_created":"2018-12-16T22:59:18Z","date_updated":"2023-09-11T14:12:06Z","volume":215,"author":[{"full_name":"Reversat, Anne","orcid":"0000-0003-0666-8928","id":"35B76592-F248-11E8-B48F-1D18A9856A87","last_name":"Reversat","first_name":"Anne"},{"last_name":"Sixt","first_name":"Michael K","orcid":"0000-0002-6620-9179","id":"41E9FBEA-F248-11E8-B48F-1D18A9856A87","full_name":"Sixt, Michael K"}],"publication_status":"published","department":[{"_id":"MiSi"}],"publisher":"Rockefeller University Press","year":"2018","day":"20","article_processing_charge":"No","has_accepted_license":"1","scopus_import":"1","date_published":"2018-11-20T00:00:00Z","page":"2959-2961","publication":"Journal of Experimental Medicine","citation":{"chicago":"Reversat, Anne, and Michael K Sixt. “IgM’s Exit Route.” Journal of Experimental Medicine. Rockefeller University Press, 2018. https://doi.org/10.1084/jem.20181934.","short":"A. Reversat, M.K. Sixt, Journal of Experimental Medicine 215 (2018) 2959–2961.","mla":"Reversat, Anne, and Michael K. Sixt. “IgM’s Exit Route.” Journal of Experimental Medicine, vol. 215, no. 12, Rockefeller University Press, 2018, pp. 2959–61, doi:10.1084/jem.20181934.","apa":"Reversat, A., & Sixt, M. K. (2018). IgM’s exit route. Journal of Experimental Medicine. Rockefeller University Press. https://doi.org/10.1084/jem.20181934","ieee":"A. Reversat and M. K. Sixt, “IgM’s exit route,” Journal of Experimental Medicine, vol. 215, no. 12. Rockefeller University Press, pp. 2959–2961, 2018.","ista":"Reversat A, Sixt MK. 2018. IgM’s exit route. Journal of Experimental Medicine. 215(12), 2959–2961.","ama":"Reversat A, Sixt MK. IgM’s exit route. Journal of Experimental Medicine. 2018;215(12):2959-2961. doi:10.1084/jem.20181934"},"abstract":[{"text":"The release of IgM is the first line of an antibody response and precedes the generation of high affinity IgG in germinal centers. Once secreted by freshly activated plasmablasts, IgM is released into the efferent lymph of reactive lymph nodes as early as 3 d after immunization. As pentameric IgM has an enormous size of 1,000 kD, its diffusibility is low, and one might wonder how it can pass through the densely lymphocyte-packed environment of a lymph node parenchyma in order to reach its exit. In this issue of JEM, Thierry et al. show that, in order to reach the blood stream, IgM molecules take a specific micro-anatomical route via lymph node conduits.","lang":"eng"}],"issue":"12","type":"journal_article","file":[{"date_updated":"2020-07-14T12:47:09Z","date_created":"2019-02-06T08:49:52Z","checksum":"687beea1d64c213f4cb9e3c29ec11a14","file_id":"5931","relation":"main_file","creator":"dernst","content_type":"application/pdf","file_size":1216437,"file_name":"2018_JournalExperMed_Reversat.pdf","access_level":"open_access"}],"oa_version":"Published Version","ddc":["570"],"status":"public","title":"IgM's exit route","intvolume":" 215","_id":"5672","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1"},{"abstract":[{"lang":"eng","text":"Cells migrating in multicellular organisms steadily traverse complex three-dimensional (3D) environments. To decipher the underlying cell biology, current experimental setups either use simplified 2D, tissue-mimetic 3D (e.g., collagen matrices) or in vivo environments. While only in vivo experiments are truly physiological, they do not allow for precise manipulation of environmental parameters. 2D in vitro experiments do allow mechanical and chemical manipulations, but increasing evidence demonstrates substantial differences of migratory mechanisms in 2D and 3D. Here, we describe simple, robust, and versatile “pillar forests” to investigate cell migration in complex but fully controllable 3D environments. Pillar forests are polydimethylsiloxane-based setups, in which two closely adjacent surfaces are interconnected by arrays of micrometer-sized pillars. Changing the pillar shape, size, height and the inter-pillar distance precisely manipulates microenvironmental parameters (e.g., pore sizes, micro-geometry, micro-topology), while being easily combined with chemotactic cues, surface coatings, diverse cell types and advanced imaging techniques. Thus, pillar forests combine the advantages of 2D cell migration assays with the precise definition of 3D environmental parameters."}],"type":"book_chapter","oa_version":"None","intvolume":" 147","status":"public","title":"Micro-engineered “pillar forests” to study cell migration in complex but controlled 3D environments","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"153","article_processing_charge":"No","day":"27","scopus_import":"1","date_published":"2018-07-27T00:00:00Z","page":"79 - 91","citation":{"ama":"Renkawitz J, Reversat A, Leithner AF, Merrin J, Sixt MK. Micro-engineered “pillar forests” to study cell migration in complex but controlled 3D environments. In: Methods in Cell Biology. Vol 147. Academic Press; 2018:79-91. doi:10.1016/bs.mcb.2018.07.004","ista":"Renkawitz J, Reversat A, Leithner AF, Merrin J, Sixt MK. 2018.Micro-engineered “pillar forests” to study cell migration in complex but controlled 3D environments. In: Methods in Cell Biology. vol. 147, 79–91.","apa":"Renkawitz, J., Reversat, A., Leithner, A. F., Merrin, J., & Sixt, M. K. (2018). Micro-engineered “pillar forests” to study cell migration in complex but controlled 3D environments. In Methods in Cell Biology (Vol. 147, pp. 79–91). Academic Press. https://doi.org/10.1016/bs.mcb.2018.07.004","ieee":"J. Renkawitz, A. Reversat, A. F. Leithner, J. Merrin, and M. K. Sixt, “Micro-engineered ‘pillar forests’ to study cell migration in complex but controlled 3D environments,” in Methods in Cell Biology, vol. 147, Academic Press, 2018, pp. 79–91.","mla":"Renkawitz, Jörg, et al. “Micro-Engineered ‘Pillar Forests’ to Study Cell Migration in Complex but Controlled 3D Environments.” Methods in Cell Biology, vol. 147, Academic Press, 2018, pp. 79–91, doi:10.1016/bs.mcb.2018.07.004.","short":"J. Renkawitz, A. Reversat, A.F. Leithner, J. Merrin, M.K. Sixt, in:, Methods in Cell Biology, Academic Press, 2018, pp. 79–91.","chicago":"Renkawitz, Jörg, Anne Reversat, Alexander F Leithner, Jack Merrin, and Michael K Sixt. “Micro-Engineered ‘Pillar Forests’ to Study Cell Migration in Complex but Controlled 3D Environments.” In Methods in Cell Biology, 147:79–91. Academic Press, 2018. https://doi.org/10.1016/bs.mcb.2018.07.004."},"publication":"Methods in Cell Biology","publist_id":"7768","volume":147,"date_created":"2018-12-11T11:44:54Z","date_updated":"2023-09-13T08:56:35Z","author":[{"full_name":"Renkawitz, Jörg","orcid":"0000-0003-2856-3369","id":"3F0587C8-F248-11E8-B48F-1D18A9856A87","last_name":"Renkawitz","first_name":"Jörg"},{"last_name":"Reversat","first_name":"Anne","orcid":"0000-0003-0666-8928","id":"35B76592-F248-11E8-B48F-1D18A9856A87","full_name":"Reversat, Anne"},{"id":"3B1B77E4-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-1073-744X","first_name":"Alexander F","last_name":"Leithner","full_name":"Leithner, Alexander F"},{"orcid":"0000-0001-5145-4609","id":"4515C308-F248-11E8-B48F-1D18A9856A87","last_name":"Merrin","first_name":"Jack","full_name":"Merrin, Jack"},{"full_name":"Sixt, Michael K","last_name":"Sixt","first_name":"Michael K","orcid":"0000-0002-6620-9179","id":"41E9FBEA-F248-11E8-B48F-1D18A9856A87"}],"department":[{"_id":"MiSi"},{"_id":"NanoFab"}],"publisher":"Academic Press","publication_status":"published","pmid":1,"year":"2018","publication_identifier":{"issn":["0091679X"]},"month":"07","language":[{"iso":"eng"}],"doi":"10.1016/bs.mcb.2018.07.004","isi":1,"quality_controlled":"1","external_id":{"isi":["000452412300006"],"pmid":["30165964"]}},{"scopus_import":1,"has_accepted_license":"1","day":"06","citation":{"short":"F. Spira, S. Cuylen Haering, S. Mehta, M. Samwer, A. Reversat, A. Verma, R. Oldenbourg, M.K. Sixt, D. Gerlich, ELife 6 (2017).","mla":"Spira, Felix, et al. “Cytokinesis in Vertebrate Cells Initiates by Contraction of an Equatorial Actomyosin Network Composed of Randomly Oriented Filaments.” ELife, vol. 6, e30867, eLife Sciences Publications, 2017, doi:10.7554/eLife.30867.","chicago":"Spira, Felix, Sara Cuylen Haering, Shalin Mehta, Matthias Samwer, Anne Reversat, Amitabh Verma, Rudolf Oldenbourg, Michael K Sixt, and Daniel Gerlich. “Cytokinesis in Vertebrate Cells Initiates by Contraction of an Equatorial Actomyosin Network Composed of Randomly Oriented Filaments.” ELife. eLife Sciences Publications, 2017. https://doi.org/10.7554/eLife.30867.","ama":"Spira F, Cuylen Haering S, Mehta S, et al. Cytokinesis in vertebrate cells initiates by contraction of an equatorial actomyosin network composed of randomly oriented filaments. eLife. 2017;6. doi:10.7554/eLife.30867","ieee":"F. Spira et al., “Cytokinesis in vertebrate cells initiates by contraction of an equatorial actomyosin network composed of randomly oriented filaments,” eLife, vol. 6. eLife Sciences Publications, 2017.","apa":"Spira, F., Cuylen Haering, S., Mehta, S., Samwer, M., Reversat, A., Verma, A., … Gerlich, D. (2017). Cytokinesis in vertebrate cells initiates by contraction of an equatorial actomyosin network composed of randomly oriented filaments. ELife. eLife Sciences Publications. https://doi.org/10.7554/eLife.30867","ista":"Spira F, Cuylen Haering S, Mehta S, Samwer M, Reversat A, Verma A, Oldenbourg R, Sixt MK, Gerlich D. 2017. Cytokinesis in vertebrate cells initiates by contraction of an equatorial actomyosin network composed of randomly oriented filaments. eLife. 6, e30867."},"publication":"eLife","date_published":"2017-11-06T00:00:00Z","type":"journal_article","abstract":[{"text":"The actomyosin ring generates force to ingress the cytokinetic cleavage furrow in animal cells, yet its filament organization and the mechanism of contractility is not well understood. We quantified actin filament order in human cells using fluorescence polarization microscopy and found that cleavage furrow ingression initiates by contraction of an equatorial actin network with randomly oriented filaments. The network subsequently gradually reoriented actin filaments along the cell equator. This strictly depended on myosin II activity, suggesting local network reorganization by mechanical forces. Cortical laser microsurgery revealed that during cytokinesis progression, mechanical tension increased substantially along the direction of the cell equator, while the network contracted laterally along the pole-to-pole axis without a detectable increase in tension. Our data suggest that an asymmetric increase in cortical tension promotes filament reorientation along the cytokinetic cleavage furrow, which might have implications for diverse other biological processes involving actomyosin rings.","lang":"eng"}],"_id":"569","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","intvolume":" 6","status":"public","title":"Cytokinesis in vertebrate cells initiates by contraction of an equatorial actomyosin network composed of randomly oriented filaments","ddc":["570"],"pubrep_id":"919","oa_version":"Published Version","file":[{"file_id":"4829","relation":"main_file","checksum":"ba09c1451153d39e4f4b7cee013e314c","date_created":"2018-12-12T10:10:40Z","date_updated":"2020-07-14T12:47:10Z","access_level":"open_access","file_name":"IST-2017-919-v1+1_elife-30867-figures-v1.pdf","creator":"system","file_size":9666973,"content_type":"application/pdf"},{"creator":"system","file_size":5951246,"content_type":"application/pdf","access_level":"open_access","file_name":"IST-2017-919-v1+2_elife-30867-v1.pdf","checksum":"01eb51f1d6ad679947415a51c988e137","date_updated":"2020-07-14T12:47:10Z","date_created":"2018-12-12T10:10:41Z","file_id":"4830","relation":"main_file"}],"publication_identifier":{"issn":["2050084X"]},"month":"11","oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"quality_controlled":"1","doi":"10.7554/eLife.30867","language":[{"iso":"eng"}],"article_number":"e30867","publist_id":"7245","file_date_updated":"2020-07-14T12:47:10Z","license":"https://creativecommons.org/licenses/by/4.0/","year":"2017","publisher":"eLife Sciences Publications","department":[{"_id":"MiSi"}],"publication_status":"published","author":[{"first_name":"Felix","last_name":"Spira","full_name":"Spira, Felix"},{"first_name":"Sara","last_name":"Cuylen Haering","full_name":"Cuylen Haering, Sara"},{"first_name":"Shalin","last_name":"Mehta","full_name":"Mehta, Shalin"},{"first_name":"Matthias","last_name":"Samwer","full_name":"Samwer, Matthias"},{"full_name":"Reversat, Anne","orcid":"0000-0003-0666-8928","id":"35B76592-F248-11E8-B48F-1D18A9856A87","last_name":"Reversat","first_name":"Anne"},{"full_name":"Verma, Amitabh","first_name":"Amitabh","last_name":"Verma"},{"last_name":"Oldenbourg","first_name":"Rudolf","full_name":"Oldenbourg, Rudolf"},{"full_name":"Sixt, Michael K","id":"41E9FBEA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6620-9179","first_name":"Michael K","last_name":"Sixt"},{"full_name":"Gerlich, Daniel","first_name":"Daniel","last_name":"Gerlich"}],"volume":6,"date_created":"2018-12-11T11:47:14Z","date_updated":"2023-02-23T12:30:29Z"},{"abstract":[{"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.","lang":"eng"}],"issue":"9","type":"journal_article","oa_version":"None","_id":"674","user_id":"4435EBFC-F248-11E8-B48F-1D18A9856A87","status":"public","title":"Dendritic cells interpret haptotactic chemokine gradients in a manner governed by signal to noise ratio and dependent on GRK6","intvolume":" 27","day":"09","scopus_import":1,"date_published":"2017-05-09T00:00:00Z","publication":"Current Biology","citation":{"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.” Current Biology. Cell Press, 2017. https://doi.org/10.1016/j.cub.2017.04.004.","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.","mla":"Schwarz, Jan, et al. “Dendritic Cells Interpret Haptotactic Chemokine Gradients in a Manner Governed by Signal to Noise Ratio and Dependent on GRK6.” Current Biology, vol. 27, no. 9, Cell Press, 2017, pp. 1314–25, doi:10.1016/j.cub.2017.04.004.","ieee":"J. Schwarz et al., “Dendritic cells interpret haptotactic chemokine gradients in a manner governed by signal to noise ratio and dependent on GRK6,” Current Biology, vol. 27, no. 9. Cell Press, pp. 1314–1325, 2017.","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. Current Biology. Cell Press. https://doi.org/10.1016/j.cub.2017.04.004","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.","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. Current Biology. 2017;27(9):1314-1325. doi:10.1016/j.cub.2017.04.004"},"page":"1314 - 1325","publist_id":"7050","ec_funded":1,"author":[{"id":"346C1EC6-F248-11E8-B48F-1D18A9856A87","first_name":"Jan","last_name":"Schwarz","full_name":"Schwarz, Jan"},{"id":"3FD04378-F248-11E8-B48F-1D18A9856A87","first_name":"Veronika","last_name":"Bierbaum","full_name":"Bierbaum, Veronika"},{"full_name":"Vaahtomeri, Kari","orcid":"0000-0001-7829-3518","id":"368EE576-F248-11E8-B48F-1D18A9856A87","last_name":"Vaahtomeri","first_name":"Kari"},{"last_name":"Hauschild","first_name":"Robert","orcid":"0000-0001-9843-3522","id":"4E01D6B4-F248-11E8-B48F-1D18A9856A87","full_name":"Hauschild, Robert"},{"first_name":"Markus","last_name":"Brown","id":"3DAB9AFC-F248-11E8-B48F-1D18A9856A87","full_name":"Brown, Markus"},{"first_name":"Ingrid","last_name":"De Vries","id":"4C7D837E-F248-11E8-B48F-1D18A9856A87","full_name":"De Vries, Ingrid"},{"full_name":"Leithner, Alexander F","first_name":"Alexander F","last_name":"Leithner","id":"3B1B77E4-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Reversat, Anne","last_name":"Reversat","first_name":"Anne","orcid":"0000-0003-0666-8928","id":"35B76592-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Merrin, Jack","last_name":"Merrin","first_name":"Jack","orcid":"0000-0001-5145-4609","id":"4515C308-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Teresa","last_name":"Tarrant","full_name":"Tarrant, Teresa"},{"id":"3E6DB97A-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-4398-476X","first_name":"Tobias","last_name":"Bollenbach","full_name":"Bollenbach, Tobias"},{"full_name":"Sixt, Michael K","id":"41E9FBEA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6620-9179","first_name":"Michael K","last_name":"Sixt"}],"date_created":"2018-12-11T11:47:51Z","date_updated":"2023-02-23T12:50:44Z","volume":27,"year":"2017","publication_status":"published","publisher":"Cell Press","department":[{"_id":"MiSi"},{"_id":"Bio"},{"_id":"NanoFab"}],"month":"05","publication_identifier":{"issn":["09609822"]},"doi":"10.1016/j.cub.2017.04.004","language":[{"iso":"eng"}],"quality_controlled":"1","project":[{"grant_number":"291734","_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme","call_identifier":"FP7"},{"name":"Cytoskeletal force generation and transduction of leukocytes (FWF)","call_identifier":"FWF","_id":"25A8E5EA-B435-11E9-9278-68D0E5697425","grant_number":"Y 564-B12"}]},{"date_published":"2016-10-24T00:00:00Z","page":"1253 - 1259","article_type":"original","citation":{"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.","mla":"Leithner, Alexander F., et al. “Diversified Actin Protrusions Promote Environmental Exploration but Are Dispensable for Locomotion of Leukocytes.” Nature Cell Biology, vol. 18, Nature Publishing Group, 2016, pp. 1253–59, doi:10.1038/ncb3426.","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.” Nature Cell Biology. Nature Publishing Group, 2016. https://doi.org/10.1038/ncb3426.","ama":"Leithner AF, Eichner A, Müller J, et al. Diversified actin protrusions promote environmental exploration but are dispensable for locomotion of leukocytes. Nature Cell Biology. 2016;18:1253-1259. doi:10.1038/ncb3426","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. Nature Cell Biology. Nature Publishing Group. https://doi.org/10.1038/ncb3426","ieee":"A. F. Leithner et al., “Diversified actin protrusions promote environmental exploration but are dispensable for locomotion of leukocytes,” Nature Cell Biology, 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."},"publication":"Nature Cell Biology","has_accepted_license":"1","article_processing_charge":"No","day":"24","scopus_import":1,"oa_version":"Submitted Version","file":[{"file_name":"2018_NatureCell_Leithner.pdf","access_level":"open_access","file_size":4433280,"content_type":"application/pdf","creator":"dernst","relation":"main_file","file_id":"7844","date_created":"2020-05-14T16:33:46Z","date_updated":"2020-07-14T12:44:43Z","checksum":"e1411cb7c99a2d9089c178a6abef25e7"}],"intvolume":" 18","status":"public","ddc":["570"],"title":"Diversified actin protrusions promote environmental exploration but are dispensable for locomotion of leukocytes","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","_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."}],"type":"journal_article","language":[{"iso":"eng"}],"acknowledged_ssus":[{"_id":"SSU"}],"doi":"10.1038/ncb3426","project":[{"grant_number":"281556","_id":"25A603A2-B435-11E9-9278-68D0E5697425","call_identifier":"FP7","name":"Cytoskeletal force generation and force transduction of migrating leukocytes (EU)"}],"quality_controlled":"1","tmp":{"name":"Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode","image":"/images/cc_by_nc_sa.png","short":"CC BY-NC-SA (4.0)"},"oa":1,"month":"10","volume":18,"date_updated":"2024-03-28T23:30:16Z","date_created":"2018-12-11T11:51:21Z","related_material":{"record":[{"id":"323","relation":"dissertation_contains","status":"public"}]},"author":[{"full_name":"Leithner, Alexander F","first_name":"Alexander F","last_name":"Leithner","id":"3B1B77E4-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-1073-744X"},{"first_name":"Alexander","last_name":"Eichner","id":"4DFA52AE-F248-11E8-B48F-1D18A9856A87","full_name":"Eichner, Alexander"},{"id":"AD07FDB4-0F61-11EA-8158-C4CC64CEAA8D","first_name":"Jan","last_name":"Müller","full_name":"Müller, Jan"},{"orcid":"0000-0003-0666-8928","id":"35B76592-F248-11E8-B48F-1D18A9856A87","last_name":"Reversat","first_name":"Anne","full_name":"Reversat, Anne"},{"full_name":"Brown, Markus","id":"3DAB9AFC-F248-11E8-B48F-1D18A9856A87","last_name":"Brown","first_name":"Markus"},{"last_name":"Schwarz","first_name":"Jan","id":"346C1EC6-F248-11E8-B48F-1D18A9856A87","full_name":"Schwarz, Jan"},{"first_name":"Jack","last_name":"Merrin","id":"4515C308-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5145-4609","full_name":"Merrin, Jack"},{"full_name":"De Gorter, David","last_name":"De Gorter","first_name":"David"},{"orcid":"0000-0003-4790-8078","id":"48AD8942-F248-11E8-B48F-1D18A9856A87","last_name":"Schur","first_name":"Florian","full_name":"Schur, Florian"},{"full_name":"Bayerl, Jonathan","first_name":"Jonathan","last_name":"Bayerl"},{"id":"4C7D837E-F248-11E8-B48F-1D18A9856A87","first_name":"Ingrid","last_name":"De Vries","full_name":"De Vries, Ingrid"},{"full_name":"Wieser, Stefan","orcid":"0000-0002-2670-2217","id":"355AA5A0-F248-11E8-B48F-1D18A9856A87","last_name":"Wieser","first_name":"Stefan"},{"full_name":"Hauschild, Robert","first_name":"Robert","last_name":"Hauschild","id":"4E01D6B4-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9843-3522"},{"full_name":"Lai, Frank","first_name":"Frank","last_name":"Lai"},{"last_name":"Moser","first_name":"Markus","full_name":"Moser, Markus"},{"full_name":"Kerjaschki, Dontscho","first_name":"Dontscho","last_name":"Kerjaschki"},{"last_name":"Rottner","first_name":"Klemens","full_name":"Rottner, Klemens"},{"full_name":"Small, Victor","last_name":"Small","first_name":"Victor"},{"last_name":"Stradal","first_name":"Theresia","full_name":"Stradal, Theresia"},{"full_name":"Sixt, Michael K","id":"41E9FBEA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6620-9179","first_name":"Michael K","last_name":"Sixt"}],"publisher":"Nature Publishing Group","department":[{"_id":"MiSi"},{"_id":"NanoFab"},{"_id":"Bio"}],"publication_status":"published","year":"2016","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.","publist_id":"5949","ec_funded":1,"file_date_updated":"2020-07-14T12:44:43Z"}]