--- _id: '8988' abstract: - lang: eng text: The differentiation of cells depends on a precise control of their internal organization, which is the result of a complex dynamic interplay between the cytoskeleton, molecular motors, signaling molecules, and membranes. For example, in the developing neuron, the protein ADAP1 (ADP-ribosylation factor GTPase-activating protein [ArfGAP] with dual pleckstrin homology [PH] domains 1) has been suggested to control dendrite branching by regulating the small GTPase ARF6. Together with the motor protein KIF13B, ADAP1 is also thought to mediate delivery of the second messenger phosphatidylinositol (3,4,5)-trisphosphate (PIP3) to the axon tip, thus contributing to PIP3 polarity. However, what defines the function of ADAP1 and how its different roles are coordinated are still not clear. Here, we studied ADAP1’s functions using in vitro reconstitutions. We found that KIF13B transports ADAP1 along microtubules, but that PIP3 as well as PI(3,4)P2 act as stop signals for this transport instead of being transported. We also demonstrate that these phosphoinositides activate ADAP1’s enzymatic activity to catalyze GTP hydrolysis by ARF6. Together, our results support a model for the cellular function of ADAP1, where KIF13B transports ADAP1 until it encounters high PIP3/PI(3,4)P2 concentrations in the plasma membrane. Here, ADAP1 disassociates from the motor to inactivate ARF6, promoting dendrite branching. acknowledged_ssus: - _id: Bio - _id: LifeSc - _id: EM-Fac acknowledgement: "We thank Urban Bezeljak, Natalia Baranova, Mar Lopez-Pelegrin, Catarina Alcarva, and Victoria Faas for sharing reagents and helpful discussions. We thank Veronika Szentirmai for help with protein purifications. We thank Carrie Bernecky, Sascha Martens, and the M.L. lab for comments on the manuscript. We thank the bioimaging facility, the life science facility, and Armel Nicolas from the mass spec facility at the Institute of Science and Technology (IST) Austria for technical support. C.D. acknowledges funding from the IST fellowship program; this work was supported by Human Frontier Science Program Young Investigator Grant\r\nRGY0083/2016. " article_number: e2010054118 article_processing_charge: No article_type: original author: - first_name: Christian F full_name: Düllberg, Christian F id: 459064DC-F248-11E8-B48F-1D18A9856A87 last_name: Düllberg orcid: 0000-0001-6335-9748 - first_name: Albert full_name: Auer, Albert id: 3018E8C2-F248-11E8-B48F-1D18A9856A87 last_name: Auer orcid: 0000-0002-3580-2906 - first_name: Nikola full_name: Canigova, Nikola id: 3795523E-F248-11E8-B48F-1D18A9856A87 last_name: Canigova orcid: 0000-0002-8518-5926 - first_name: Katrin full_name: Loibl, Katrin id: 3760F32C-F248-11E8-B48F-1D18A9856A87 last_name: Loibl orcid: 0000-0002-2429-7668 - first_name: Martin full_name: Loose, Martin id: 462D4284-F248-11E8-B48F-1D18A9856A87 last_name: Loose orcid: 0000-0001-7309-9724 citation: ama: Düllberg CF, Auer A, Canigova N, Loibl K, Loose M. In vitro reconstitution reveals phosphoinositides as cargo-release factors and activators of the ARF6 GAP ADAP1. PNAS. 2021;118(1). doi:10.1073/pnas.2010054118 apa: Düllberg, C. F., Auer, A., Canigova, N., Loibl, K., & Loose, M. (2021). In vitro reconstitution reveals phosphoinositides as cargo-release factors and activators of the ARF6 GAP ADAP1. PNAS. National Academy of Sciences. https://doi.org/10.1073/pnas.2010054118 chicago: Düllberg, Christian F, Albert Auer, Nikola Canigova, Katrin Loibl, and Martin Loose. “In Vitro Reconstitution Reveals Phosphoinositides as Cargo-Release Factors and Activators of the ARF6 GAP ADAP1.” PNAS. National Academy of Sciences, 2021. https://doi.org/10.1073/pnas.2010054118. ieee: C. F. Düllberg, A. Auer, N. Canigova, K. Loibl, and M. Loose, “In vitro reconstitution reveals phosphoinositides as cargo-release factors and activators of the ARF6 GAP ADAP1,” PNAS, vol. 118, no. 1. National Academy of Sciences, 2021. ista: Düllberg CF, Auer A, Canigova N, Loibl K, Loose M. 2021. In vitro reconstitution reveals phosphoinositides as cargo-release factors and activators of the ARF6 GAP ADAP1. PNAS. 118(1), e2010054118. mla: Düllberg, Christian F., et al. “In Vitro Reconstitution Reveals Phosphoinositides as Cargo-Release Factors and Activators of the ARF6 GAP ADAP1.” PNAS, vol. 118, no. 1, e2010054118, National Academy of Sciences, 2021, doi:10.1073/pnas.2010054118. short: C.F. Düllberg, A. Auer, N. Canigova, K. Loibl, M. Loose, PNAS 118 (2021). date_created: 2021-01-03T23:01:23Z date_published: 2021-01-05T00:00:00Z date_updated: 2023-08-04T11:20:46Z day: '05' department: - _id: MaLo - _id: MiSi doi: 10.1073/pnas.2010054118 external_id: isi: - '000607270100018' pmid: - '33443153' intvolume: ' 118' isi: 1 issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1073/pnas.2010054118 month: '01' oa: 1 oa_version: Published Version pmid: 1 project: - _id: 2599F062-B435-11E9-9278-68D0E5697425 grant_number: RGY0083/2016 name: Reconstitution of cell polarity and axis determination in a cell-free system publication: PNAS publication_identifier: eissn: - '10916490' issn: - '00278424' publication_status: published publisher: National Academy of Sciences quality_controlled: '1' scopus_import: '1' status: public title: In vitro reconstitution reveals phosphoinositides as cargo-release factors and activators of the ARF6 GAP ADAP1 type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 118 year: '2021' ... --- _id: '9259' abstract: - lang: eng text: Gradients of chemokines and growth factors guide migrating cells and morphogenetic processes. Migration of antigen-presenting dendritic cells from the interstitium into the lymphatic system is dependent on chemokine CCL21, which is secreted by endothelial cells of the lymphatic capillary, binds heparan sulfates and forms gradients decaying into the interstitium. Despite the importance of CCL21 gradients, and chemokine gradients in general, the mechanisms of gradient formation are unclear. Studies on fibroblast growth factors have shown that limited diffusion is crucial for gradient formation. Here, we used the mouse dermis as a model tissue to address the necessity of CCL21 anchoring to lymphatic capillary heparan sulfates in the formation of interstitial CCL21 gradients. Surprisingly, the absence of lymphatic endothelial heparan sulfates resulted only in a modest decrease of CCL21 levels at the lymphatic capillaries and did neither affect interstitial CCL21 gradient shape nor dendritic cell migration toward lymphatic capillaries. Thus, heparan sulfates at the level of the lymphatic endothelium are dispensable for the formation of a functional CCL21 gradient. acknowledgement: "This work was supported by Sigrid Juselius fellowship (KV), University of Helsinki 3-year research grant (KV), Academy of Finland Research fellow funding (315710, to KV), the European Research Council (ERC CoG 724373 to MS), and by the Austrian Science foundation (FWF) (Y564-B12 START award to MS).\r\nTaija Mäkinen is acknowledged for providing Prox1CreERT2 transgenic mice and Yu Yamaguchi for providing the conditional Ext1 mouse strain." article_number: '630002' article_processing_charge: No article_type: original author: - first_name: Kari full_name: Vaahtomeri, Kari id: 368EE576-F248-11E8-B48F-1D18A9856A87 last_name: Vaahtomeri orcid: 0000-0001-7829-3518 - first_name: Christine full_name: Moussion, Christine id: 3356F664-F248-11E8-B48F-1D18A9856A87 last_name: Moussion - 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: Vaahtomeri K, Moussion C, Hauschild R, Sixt MK. Shape and function of interstitial chemokine CCL21 gradients are independent of heparan sulfates produced by lymphatic endothelium. Frontiers in Immunology. 2021;12. doi:10.3389/fimmu.2021.630002 apa: Vaahtomeri, K., Moussion, C., Hauschild, R., & Sixt, M. K. (2021). Shape and function of interstitial chemokine CCL21 gradients are independent of heparan sulfates produced by lymphatic endothelium. Frontiers in Immunology. Frontiers. https://doi.org/10.3389/fimmu.2021.630002 chicago: Vaahtomeri, Kari, Christine Moussion, Robert Hauschild, and Michael K Sixt. “Shape and Function of Interstitial Chemokine CCL21 Gradients Are Independent of Heparan Sulfates Produced by Lymphatic Endothelium.” Frontiers in Immunology. Frontiers, 2021. https://doi.org/10.3389/fimmu.2021.630002. ieee: K. Vaahtomeri, C. Moussion, R. Hauschild, and M. K. Sixt, “Shape and function of interstitial chemokine CCL21 gradients are independent of heparan sulfates produced by lymphatic endothelium,” Frontiers in Immunology, vol. 12. Frontiers, 2021. ista: Vaahtomeri K, Moussion C, Hauschild R, Sixt MK. 2021. Shape and function of interstitial chemokine CCL21 gradients are independent of heparan sulfates produced by lymphatic endothelium. Frontiers in Immunology. 12, 630002. mla: Vaahtomeri, Kari, et al. “Shape and Function of Interstitial Chemokine CCL21 Gradients Are Independent of Heparan Sulfates Produced by Lymphatic Endothelium.” Frontiers in Immunology, vol. 12, 630002, Frontiers, 2021, doi:10.3389/fimmu.2021.630002. short: K. Vaahtomeri, C. Moussion, R. Hauschild, M.K. Sixt, Frontiers in Immunology 12 (2021). date_created: 2021-03-21T23:01:20Z date_published: 2021-02-25T00:00:00Z date_updated: 2023-08-07T14:18:26Z day: '25' ddc: - '570' department: - _id: MiSi - _id: Bio doi: 10.3389/fimmu.2021.630002 ec_funded: 1 external_id: isi: - '000627134400001' pmid: - '33717158' file: - access_level: open_access checksum: 663f5a48375e42afa4bfef58d42ec186 content_type: application/pdf creator: dernst date_created: 2021-03-22T12:08:26Z date_updated: 2021-03-22T12:08:26Z file_id: '9277' file_name: 2021_FrontiersImmumo_Vaahtomeri.pdf file_size: 3740146 relation: main_file success: 1 file_date_updated: 2021-03-22T12:08:26Z has_accepted_license: '1' intvolume: ' 12' isi: 1 language: - iso: eng license: https://creativecommons.org/licenses/by/4.0/ month: '02' oa: 1 oa_version: Published Version pmid: 1 project: - _id: 25FE9508-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '724373' name: Cellular navigation along spatial gradients - _id: 25A8E5EA-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Y 564-B12 name: Cytoskeletal force generation and force transduction of migrating leukocytes publication: Frontiers in Immunology publication_identifier: eissn: - 1664-3224 publication_status: published publisher: Frontiers quality_controlled: '1' scopus_import: '1' status: public title: Shape and function of interstitial chemokine CCL21 gradients are independent of heparan sulfates produced by lymphatic endothelium tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 12 year: '2021' ... --- _id: '9294' abstract: - lang: eng text: In this issue of Developmental Cell, Doyle and colleagues identify periodic anterior contraction as a characteristic feature of fibroblasts and mesenchymal cancer cells embedded in 3D collagen gels. This contractile mechanism generates a matrix prestrain required for crawling in fibrous 3D environments. article_processing_charge: No article_type: original author: - first_name: Florian R full_name: Gärtner, Florian R id: 397A88EE-F248-11E8-B48F-1D18A9856A87 last_name: Gärtner orcid: 0000-0001-6120-3723 - 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: Gärtner FR, Sixt MK. Engaging the front wheels to drive through fibrous terrain. Developmental Cell. 2021;56(6):723-725. doi:10.1016/j.devcel.2021.03.002 apa: Gärtner, F. R., & Sixt, M. K. (2021). Engaging the front wheels to drive through fibrous terrain. Developmental Cell. Elsevier. https://doi.org/10.1016/j.devcel.2021.03.002 chicago: Gärtner, Florian R, and Michael K Sixt. “Engaging the Front Wheels to Drive through Fibrous Terrain.” Developmental Cell. Elsevier, 2021. https://doi.org/10.1016/j.devcel.2021.03.002. ieee: F. R. Gärtner and M. K. Sixt, “Engaging the front wheels to drive through fibrous terrain,” Developmental Cell, vol. 56, no. 6. Elsevier, pp. 723–725, 2021. ista: Gärtner FR, Sixt MK. 2021. Engaging the front wheels to drive through fibrous terrain. Developmental Cell. 56(6), 723–725. mla: Gärtner, Florian R., and Michael K. Sixt. “Engaging the Front Wheels to Drive through Fibrous Terrain.” Developmental Cell, vol. 56, no. 6, Elsevier, 2021, pp. 723–25, doi:10.1016/j.devcel.2021.03.002. short: F.R. Gärtner, M.K. Sixt, Developmental Cell 56 (2021) 723–725. date_created: 2021-03-28T22:01:41Z date_published: 2021-03-22T00:00:00Z date_updated: 2023-08-07T14:26:47Z day: '22' department: - _id: MiSi doi: 10.1016/j.devcel.2021.03.002 external_id: isi: - '000631681200004' pmid: - '33756118' intvolume: ' 56' isi: 1 issue: '6' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1016/j.devcel.2021.03.002 month: '03' oa: 1 oa_version: Published Version page: 723-725 pmid: 1 publication: Developmental Cell publication_identifier: eissn: - '18781551' issn: - '15345807' publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: Engaging the front wheels to drive through fibrous terrain type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 56 year: '2021' ... --- _id: '9822' abstract: - lang: eng text: Attachment of adhesive molecules on cell culture surfaces to restrict cell adhesion to defined areas and shapes has been vital for the progress of in vitro research. In currently existing patterning methods, a combination of pattern properties such as stability, precision, specificity, high-throughput outcome, and spatiotemporal control is highly desirable but challenging to achieve. Here, we introduce a versatile and high-throughput covalent photoimmobilization technique, comprising a light-dose-dependent patterning step and a subsequent functionalization of the pattern via click chemistry. This two-step process is feasible on arbitrary surfaces and allows for generation of sustainable patterns and gradients. The method is validated in different biological systems by patterning adhesive ligands on cell-repellent surfaces, thereby constraining the growth and migration of cells to the designated areas. We then implement a sequential photopatterning approach by adding a second switchable patterning step, allowing for spatiotemporal control over two distinct surface patterns. As a proof of concept, we reconstruct the dynamics of the tip/stalk cell switch during angiogenesis. Our results show that the spatiotemporal control provided by our “sequential photopatterning” system is essential for mimicking dynamic biological processes and that our innovative approach has great potential for further applications in cell science. acknowledgement: We would like to thank Charlott Leu for the production of our chromium wafers, Louise Ritter for her contribution of the IF stainings in Figure 4, Shokoufeh Teymouri for her help with the Bioinert coated slides, and finally Prof. Dr. Joachim Rädler for his valuable scientific guidance. article_processing_charge: Yes (in subscription journal) article_type: original author: - first_name: Themistoklis full_name: Zisis, Themistoklis last_name: Zisis - first_name: Jan full_name: Schwarz, Jan id: 346C1EC6-F248-11E8-B48F-1D18A9856A87 last_name: Schwarz - first_name: Miriam full_name: Balles, Miriam last_name: Balles - first_name: Maibritt full_name: Kretschmer, Maibritt last_name: Kretschmer - first_name: Maria full_name: Nemethova, Maria id: 34E27F1C-F248-11E8-B48F-1D18A9856A87 last_name: Nemethova - first_name: Remy P full_name: Chait, Remy P id: 3464AE84-F248-11E8-B48F-1D18A9856A87 last_name: Chait orcid: 0000-0003-0876-3187 - first_name: Robert full_name: Hauschild, Robert id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87 last_name: Hauschild orcid: 0000-0001-9843-3522 - first_name: Janina full_name: Lange, Janina last_name: Lange - first_name: Calin C full_name: Guet, Calin C id: 47F8433E-F248-11E8-B48F-1D18A9856A87 last_name: Guet orcid: 0000-0001-6220-2052 - first_name: Michael K full_name: Sixt, Michael K id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87 last_name: Sixt orcid: 0000-0002-4561-241X - first_name: Stefan full_name: Zahler, Stefan last_name: Zahler citation: ama: Zisis T, Schwarz J, Balles M, et al. Sequential and switchable patterning for studying cellular processes under spatiotemporal control. ACS Applied Materials and Interfaces. 2021;13(30):35545–35560. doi:10.1021/acsami.1c09850 apa: Zisis, T., Schwarz, J., Balles, M., Kretschmer, M., Nemethova, M., Chait, R. P., … Zahler, S. (2021). Sequential and switchable patterning for studying cellular processes under spatiotemporal control. ACS Applied Materials and Interfaces. American Chemical Society. https://doi.org/10.1021/acsami.1c09850 chicago: Zisis, Themistoklis, Jan Schwarz, Miriam Balles, Maibritt Kretschmer, Maria Nemethova, Remy P Chait, Robert Hauschild, et al. “Sequential and Switchable Patterning for Studying Cellular Processes under Spatiotemporal Control.” ACS Applied Materials and Interfaces. American Chemical Society, 2021. https://doi.org/10.1021/acsami.1c09850. ieee: T. Zisis et al., “Sequential and switchable patterning for studying cellular processes under spatiotemporal control,” ACS Applied Materials and Interfaces, vol. 13, no. 30. American Chemical Society, pp. 35545–35560, 2021. ista: Zisis T, Schwarz J, Balles M, Kretschmer M, Nemethova M, Chait RP, Hauschild R, Lange J, Guet CC, Sixt MK, Zahler S. 2021. Sequential and switchable patterning for studying cellular processes under spatiotemporal control. ACS Applied Materials and Interfaces. 13(30), 35545–35560. mla: Zisis, Themistoklis, et al. “Sequential and Switchable Patterning for Studying Cellular Processes under Spatiotemporal Control.” ACS Applied Materials and Interfaces, vol. 13, no. 30, American Chemical Society, 2021, pp. 35545–35560, doi:10.1021/acsami.1c09850. short: T. Zisis, J. Schwarz, M. Balles, M. Kretschmer, M. Nemethova, R.P. Chait, R. Hauschild, J. Lange, C.C. Guet, M.K. Sixt, S. Zahler, ACS Applied Materials and Interfaces 13 (2021) 35545–35560. date_created: 2021-08-08T22:01:28Z date_published: 2021-08-04T00:00:00Z date_updated: 2023-08-10T14:22:48Z day: '04' ddc: - '620' - '570' department: - _id: MiSi - _id: GaTk - _id: Bio - _id: CaGu doi: 10.1021/acsami.1c09850 ec_funded: 1 external_id: isi: - '000683741400026' pmid: - '34283577' file: - access_level: open_access checksum: b043a91d9f9200e467b970b692687ed3 content_type: application/pdf creator: asandaue date_created: 2021-08-09T09:44:03Z date_updated: 2021-08-09T09:44:03Z file_id: '9833' file_name: 2021_ACSAppliedMaterialsAndInterfaces_Zisis.pdf file_size: 7123293 relation: main_file success: 1 file_date_updated: 2021-08-09T09:44:03Z has_accepted_license: '1' intvolume: ' 13' isi: 1 issue: '30' language: - iso: eng license: https://creativecommons.org/licenses/by-nc-nd/4.0/ month: '08' oa: 1 oa_version: Published Version page: 35545–35560 pmid: 1 project: - _id: 25FE9508-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '724373' name: Cellular navigation along spatial gradients publication: ACS Applied Materials and Interfaces publication_identifier: eissn: - '19448252' issn: - '19448244' publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: Sequential and switchable patterning for studying cellular processes under spatiotemporal control 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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 13 year: '2021' ... --- _id: '10834' abstract: - lang: eng text: Hematopoietic-specific protein 1 (Hem1) is an essential subunit of the WAVE regulatory complex (WRC) in immune cells. WRC is crucial for Arp2/3 complex activation and the protrusion of branched actin filament networks. Moreover, Hem1 loss of function in immune cells causes autoimmune diseases in humans. Here, we show that genetic removal of Hem1 in macrophages diminishes frequency and efficacy of phagocytosis as well as phagocytic cup formation in addition to defects in lamellipodial protrusion and migration. Moreover, Hem1-null macrophages displayed strong defects in cell adhesion despite unaltered podosome formation and concomitant extracellular matrix degradation. Specifically, dynamics of both adhesion and de-adhesion as well as concomitant phosphorylation of paxillin and focal adhesion kinase (FAK) were significantly compromised. Accordingly, disruption of WRC function in non-hematopoietic cells coincided with both defects in adhesion turnover and altered FAK and paxillin phosphorylation. Consistently, platelets exhibited reduced adhesion and diminished integrin αIIbβ3 activation upon WRC removal. Interestingly, adhesion phenotypes, but not lamellipodia formation, were partially rescued by small molecule activation of FAK. A full rescue of the phenotype, including lamellipodia formation, required not only the presence of WRCs but also their binding to and activation by Rac. Collectively, our results uncover that WRC impacts on integrin-dependent processes in a FAK-dependent manner, controlling formation and dismantling of adhesions, relevant for properly grabbing onto extracellular surfaces and particles during cell edge expansion, like in migration or phagocytosis. acknowledgement: We are grateful to Silvia Prettin, Ina Schleicher, and Petra Hagendorff for expert technical assistance; David Dettbarn for animal keeping and breeding; and Lothar Gröbe and Maria Höxter for cell sorting. We also thank Werner Tegge for peptides and Giorgio Scita for antibodies. This work was supported, in part, by the Deutsche Forschungsgemeinschaft (DFG), Priority Programm SPP1150 (to T.E.B.S., K.R., and M. Sixt), and by DFG grant GRK2223/1 (to K.R.). T.E.B.S. acknowledges support by the Helmholtz Society through HGF impulse fund W2/W3-066 and M. Schnoor by the Mexican Council for Science and Technology (CONACyT, 284292 ), Fund SEP-Cinvestav ( 108 ), and the Royal Society, UK (Newton Advanced Fellowship, NAF/R1/180017 ). article_processing_charge: No article_type: original author: - first_name: Stephanie full_name: Stahnke, Stephanie last_name: Stahnke - first_name: Hermann full_name: Döring, Hermann last_name: Döring - first_name: Charly full_name: Kusch, Charly last_name: Kusch - first_name: David J.J. full_name: de Gorter, David J.J. last_name: de Gorter - first_name: Sebastian full_name: Dütting, Sebastian last_name: Dütting - first_name: Aleks full_name: Guledani, Aleks last_name: Guledani - first_name: Irina full_name: Pleines, Irina last_name: Pleines - first_name: Michael full_name: Schnoor, Michael last_name: Schnoor - 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: Robert full_name: Geffers, Robert last_name: Geffers - first_name: Manfred full_name: Rohde, Manfred last_name: Rohde - first_name: Mathias full_name: Müsken, Mathias last_name: Müsken - first_name: Frieda full_name: Kage, Frieda last_name: Kage - first_name: Anika full_name: Steffen, Anika last_name: Steffen - first_name: Jan full_name: Faix, Jan last_name: Faix - first_name: Bernhard full_name: Nieswandt, Bernhard last_name: Nieswandt - first_name: Klemens full_name: Rottner, Klemens last_name: Rottner - first_name: Theresia E.B. full_name: Stradal, Theresia E.B. last_name: Stradal citation: ama: Stahnke S, Döring H, Kusch C, et al. Loss of Hem1 disrupts macrophage function and impacts migration, phagocytosis, and integrin-mediated adhesion. Current Biology. 2021;31(10):2051-2064.e8. doi:10.1016/j.cub.2021.02.043 apa: Stahnke, S., Döring, H., Kusch, C., de Gorter, D. J. J., Dütting, S., Guledani, A., … Stradal, T. E. B. (2021). Loss of Hem1 disrupts macrophage function and impacts migration, phagocytosis, and integrin-mediated adhesion. Current Biology. Elsevier. https://doi.org/10.1016/j.cub.2021.02.043 chicago: Stahnke, Stephanie, Hermann Döring, Charly Kusch, David J.J. de Gorter, Sebastian Dütting, Aleks Guledani, Irina Pleines, et al. “Loss of Hem1 Disrupts Macrophage Function and Impacts Migration, Phagocytosis, and Integrin-Mediated Adhesion.” Current Biology. Elsevier, 2021. https://doi.org/10.1016/j.cub.2021.02.043. ieee: S. Stahnke et al., “Loss of Hem1 disrupts macrophage function and impacts migration, phagocytosis, and integrin-mediated adhesion,” Current Biology, vol. 31, no. 10. Elsevier, p. 2051–2064.e8, 2021. ista: Stahnke S, Döring H, Kusch C, de Gorter DJJ, Dütting S, Guledani A, Pleines I, Schnoor M, Sixt MK, Geffers R, Rohde M, Müsken M, Kage F, Steffen A, Faix J, Nieswandt B, Rottner K, Stradal TEB. 2021. Loss of Hem1 disrupts macrophage function and impacts migration, phagocytosis, and integrin-mediated adhesion. Current Biology. 31(10), 2051–2064.e8. mla: Stahnke, Stephanie, et al. “Loss of Hem1 Disrupts Macrophage Function and Impacts Migration, Phagocytosis, and Integrin-Mediated Adhesion.” Current Biology, vol. 31, no. 10, Elsevier, 2021, p. 2051–2064.e8, doi:10.1016/j.cub.2021.02.043. short: S. Stahnke, H. Döring, C. Kusch, D.J.J. de Gorter, S. Dütting, A. Guledani, I. Pleines, M. Schnoor, M.K. Sixt, R. Geffers, M. Rohde, M. Müsken, F. Kage, A. Steffen, J. Faix, B. Nieswandt, K. Rottner, T.E.B. Stradal, Current Biology 31 (2021) 2051–2064.e8. date_created: 2022-03-08T07:51:04Z date_published: 2021-05-24T00:00:00Z date_updated: 2023-08-17T07:01:14Z day: '24' department: - _id: MiSi doi: 10.1016/j.cub.2021.02.043 external_id: isi: - '000654652200002' pmid: - '33711252' intvolume: ' 31' isi: 1 issue: '10' keyword: - General Agricultural and Biological Sciences - General Biochemistry - Genetics and Molecular Biology language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1101/2020.03.24.005835 month: '05' oa: 1 oa_version: Preprint page: 2051-2064.e8 pmid: 1 publication: Current Biology publication_identifier: issn: - 0960-9822 publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: Loss of Hem1 disrupts macrophage function and impacts migration, phagocytosis, and integrin-mediated adhesion type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 31 year: '2021' ... --- _id: '9094' abstract: - lang: eng text: Dendritic cells (DCs) are crucial for the priming of naive T cells and the initiation of adaptive immunity. Priming is initiated at a heterologous cell–cell contact, the immunological synapse (IS). While it is established that F-actin dynamics regulates signaling at the T cell side of the contact, little is known about the cytoskeletal contribution on the DC side. Here, we show that the DC actin cytoskeleton is decisive for the formation of a multifocal synaptic structure, which correlates with T cell priming efficiency. DC actin at the IS appears in transient foci that are dynamized by the WAVE regulatory complex (WRC). The absence of the WRC in DCs leads to stabilized contacts with T cells, caused by an increase in ICAM1-integrin–mediated cell–cell adhesion. This results in lower numbers of activated and proliferating T cells, demonstrating an important role for DC actin in the regulation of immune synapse functionality. article_number: e202006081 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: LM full_name: Altenburger, LM last_name: Altenburger - first_name: R full_name: Hauschild, R last_name: Hauschild - first_name: Frank P full_name: Assen, Frank P id: 3A8E7F24-F248-11E8-B48F-1D18A9856A87 last_name: Assen orcid: 0000-0003-3470-6119 - first_name: K full_name: Rottner, K last_name: Rottner - first_name: Stradal full_name: TEB, Stradal last_name: TEB - first_name: A full_name: Diz-Muñoz, A last_name: Diz-Muñoz - first_name: JV full_name: Stein, JV last_name: Stein - 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, Altenburger L, Hauschild R, et al. Dendritic cell actin dynamics control contact duration and priming efficiency at the immunological synapse. Journal of Cell Biology. 2021;220(4). doi:10.1083/jcb.202006081 apa: Leithner, A. F., Altenburger, L., Hauschild, R., Assen, F. P., Rottner, K., TEB, S., … Sixt, M. K. (2021). Dendritic cell actin dynamics control contact duration and priming efficiency at the immunological synapse. Journal of Cell Biology. Rockefeller University Press. https://doi.org/10.1083/jcb.202006081 chicago: Leithner, Alexander F, LM Altenburger, R Hauschild, Frank P Assen, K Rottner, Stradal TEB, A Diz-Muñoz, JV Stein, and Michael K Sixt. “Dendritic Cell Actin Dynamics Control Contact Duration and Priming Efficiency at the Immunological Synapse.” Journal of Cell Biology. Rockefeller University Press, 2021. https://doi.org/10.1083/jcb.202006081. ieee: A. F. Leithner et al., “Dendritic cell actin dynamics control contact duration and priming efficiency at the immunological synapse,” Journal of Cell Biology, vol. 220, no. 4. Rockefeller University Press, 2021. ista: Leithner AF, Altenburger L, Hauschild R, Assen FP, Rottner K, TEB S, Diz-Muñoz A, Stein J, Sixt MK. 2021. Dendritic cell actin dynamics control contact duration and priming efficiency at the immunological synapse. Journal of Cell Biology. 220(4), e202006081. mla: Leithner, Alexander F., et al. “Dendritic Cell Actin Dynamics Control Contact Duration and Priming Efficiency at the Immunological Synapse.” Journal of Cell Biology, vol. 220, no. 4, e202006081, Rockefeller University Press, 2021, doi:10.1083/jcb.202006081. short: A.F. Leithner, L. Altenburger, R. Hauschild, F.P. Assen, K. Rottner, S. TEB, A. Diz-Muñoz, J. Stein, M.K. Sixt, Journal of Cell Biology 220 (2021). date_created: 2021-02-05T10:08:04Z date_published: 2021-04-05T00:00:00Z date_updated: 2023-09-05T13:57:53Z day: '05' ddc: - '570' department: - _id: MiSi doi: 10.1083/jcb.202006081 external_id: isi: - '000626365700001' pmid: - '33533935' file: - access_level: open_access checksum: 843ebc153847c8626e13c9c5ce71d533 content_type: application/pdf creator: dernst date_created: 2022-05-12T14:16:21Z date_updated: 2022-05-12T14:16:21Z file_id: '11367' file_name: 2021_JournCellBiology_Leithner.pdf file_size: 5102328 relation: main_file success: 1 file_date_updated: 2022-05-12T14:16:21Z has_accepted_license: '1' intvolume: ' 220' isi: 1 issue: '4' language: - iso: eng license: https://creativecommons.org/licenses/by-nc-sa/4.0/ month: '04' oa: 1 oa_version: Published Version pmid: 1 publication: Journal of Cell Biology publication_identifier: eissn: - 1540-8140 issn: - 0021-9525 publication_status: published publisher: Rockefeller University Press quality_controlled: '1' scopus_import: '1' status: public title: Dendritic cell actin dynamics control contact duration and priming efficiency at the immunological synapse 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: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 220 year: '2021' ... --- _id: '9429' abstract: - lang: eng text: De novo loss of function mutations in the ubiquitin ligase-encoding gene Cullin3 lead to autism spectrum disorder (ASD). In mouse, constitutive haploinsufficiency leads to motor coordination deficits as well as ASD-relevant social and cognitive impairments. However, induction of Cul3 haploinsufficiency later in life does not lead to ASD-relevant behaviors, pointing to an important role of Cul3 during a critical developmental window. Here we show that Cul3 is essential to regulate neuronal migration and, therefore, constitutive Cul3 heterozygous mutant mice display cortical lamination abnormalities. At the molecular level, we found that Cul3 controls neuronal migration by tightly regulating the amount of Plastin3 (Pls3), a previously unrecognized player of neural migration. Furthermore, we found that Pls3 cell-autonomously regulates cell migration by regulating actin cytoskeleton organization, and its levels are inversely proportional to neural migration speed. Finally, we provide evidence that cellular phenotypes associated with autism-linked gene haploinsufficiency can be rescued by transcriptional activation of the intact allele in vitro, offering a proof of concept for a potential therapeutic approach for ASDs. acknowledged_ssus: - _id: PreCl acknowledgement: We thank A. Coll Manzano, F. Freeman, M. Ladron de Guevara, and A. Ç. Yahya for technical assistance, S. Deixler, A. Lepold, and A. Schlerka for the management of our animal colony, as well as M. Schunn and the Preclinical Facility team for technical assistance. We thank K. Heesom and her team at the University of Bristol Proteomics Facility for the proteomics sample preparation, data generation, and analysis support. We thank Y. B. Simon for kindly providing the plasmid for lentiviral labeling. Further, we thank M. Sixt for his advice regarding cell migration and the fruitful discussions. This work was supported by the ISTPlus postdoctoral fellowship (Grant Agreement No. 754411) to B.B., by the European Union’s Horizon 2020 research and innovation program (ERC) grant 715508 (REVERSEAUTISM), and by the Austrian Science Fund (FWF) to G.N. (DK W1232-B24 and SFB F7807-B) and to J.G.D (I3600-B27). article_number: '3058' article_processing_charge: No article_type: original author: - first_name: Jasmin full_name: Morandell, Jasmin id: 4739D480-F248-11E8-B48F-1D18A9856A87 last_name: Morandell - first_name: Lena A full_name: Schwarz, Lena A id: 29A8453C-F248-11E8-B48F-1D18A9856A87 last_name: Schwarz - first_name: Bernadette full_name: Basilico, Bernadette id: 36035796-5ACA-11E9-A75E-7AF2E5697425 last_name: Basilico orcid: 0000-0003-1843-3173 - first_name: Saren full_name: Tasciyan, Saren id: 4323B49C-F248-11E8-B48F-1D18A9856A87 last_name: Tasciyan orcid: 0000-0003-1671-393X - first_name: Georgi A full_name: Dimchev, Georgi A id: 38C393BE-F248-11E8-B48F-1D18A9856A87 last_name: Dimchev orcid: 0000-0001-8370-6161 - first_name: Armel full_name: Nicolas, Armel id: 2A103192-F248-11E8-B48F-1D18A9856A87 last_name: Nicolas - 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: Caroline full_name: Kreuzinger, Caroline id: 382077BA-F248-11E8-B48F-1D18A9856A87 last_name: Kreuzinger - first_name: Christoph full_name: Dotter, Christoph id: 4C66542E-F248-11E8-B48F-1D18A9856A87 last_name: Dotter orcid: 0000-0002-9033-9096 - first_name: Lisa full_name: Knaus, Lisa id: 3B2ABCF4-F248-11E8-B48F-1D18A9856A87 last_name: Knaus - first_name: Zoe full_name: Dobler, Zoe id: D23090A2-9057-11EA-883A-A8396FC7A38F last_name: Dobler - first_name: Emanuele full_name: Cacci, Emanuele last_name: Cacci - first_name: Florian KM full_name: Schur, Florian KM id: 48AD8942-F248-11E8-B48F-1D18A9856A87 last_name: Schur orcid: 0000-0003-4790-8078 - first_name: Johann G full_name: Danzl, Johann G id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87 last_name: Danzl orcid: 0000-0001-8559-3973 - first_name: Gaia full_name: Novarino, Gaia id: 3E57A680-F248-11E8-B48F-1D18A9856A87 last_name: Novarino orcid: 0000-0002-7673-7178 citation: ama: Morandell J, Schwarz LA, Basilico B, et al. Cul3 regulates cytoskeleton protein homeostasis and cell migration during a critical window of brain development. Nature Communications. 2021;12(1). doi:10.1038/s41467-021-23123-x apa: Morandell, J., Schwarz, L. A., Basilico, B., Tasciyan, S., Dimchev, G. A., Nicolas, A., … Novarino, G. (2021). Cul3 regulates cytoskeleton protein homeostasis and cell migration during a critical window of brain development. Nature Communications. Springer Nature. https://doi.org/10.1038/s41467-021-23123-x chicago: Morandell, Jasmin, Lena A Schwarz, Bernadette Basilico, Saren Tasciyan, Georgi A Dimchev, Armel Nicolas, Christoph M Sommer, et al. “Cul3 Regulates Cytoskeleton Protein Homeostasis and Cell Migration during a Critical Window of Brain Development.” Nature Communications. Springer Nature, 2021. https://doi.org/10.1038/s41467-021-23123-x. ieee: J. Morandell et al., “Cul3 regulates cytoskeleton protein homeostasis and cell migration during a critical window of brain development,” Nature Communications, vol. 12, no. 1. Springer Nature, 2021. ista: Morandell J, Schwarz LA, Basilico B, Tasciyan S, Dimchev GA, Nicolas A, Sommer CM, Kreuzinger C, Dotter C, Knaus L, Dobler Z, Cacci E, Schur FK, Danzl JG, Novarino G. 2021. Cul3 regulates cytoskeleton protein homeostasis and cell migration during a critical window of brain development. Nature Communications. 12(1), 3058. mla: Morandell, Jasmin, et al. “Cul3 Regulates Cytoskeleton Protein Homeostasis and Cell Migration during a Critical Window of Brain Development.” Nature Communications, vol. 12, no. 1, 3058, Springer Nature, 2021, doi:10.1038/s41467-021-23123-x. short: J. Morandell, L.A. Schwarz, B. Basilico, S. Tasciyan, G.A. Dimchev, A. Nicolas, C.M. Sommer, C. Kreuzinger, C. Dotter, L. Knaus, Z. Dobler, E. Cacci, F.K. Schur, J.G. Danzl, G. Novarino, Nature Communications 12 (2021). date_created: 2021-05-28T11:49:46Z date_published: 2021-05-24T00:00:00Z date_updated: 2024-03-27T23:30:23Z day: '24' ddc: - '572' department: - _id: GaNo - _id: JoDa - _id: FlSc - _id: MiSi - _id: LifeSc - _id: Bio doi: 10.1038/s41467-021-23123-x ec_funded: 1 external_id: isi: - '000658769900010' file: - access_level: open_access checksum: 337e0f7959c35ec959984cacdcb472ba content_type: application/pdf creator: kschuh date_created: 2021-05-28T12:39:43Z date_updated: 2021-05-28T12:39:43Z file_id: '9430' file_name: 2021_NatureCommunications_Morandell.pdf file_size: 9358599 relation: main_file success: 1 file_date_updated: 2021-05-28T12:39:43Z has_accepted_license: '1' intvolume: ' 12' isi: 1 issue: '1' keyword: - General Biochemistry - Genetics and Molecular Biology language: - iso: eng month: '05' oa: 1 oa_version: Published Version project: - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships - _id: 25444568-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '715508' name: Probing the Reversibility of Autism Spectrum Disorders by Employing in vivo and in vitro Models - _id: 2548AE96-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: W1232-B24 name: Molecular Drug Targets - _id: 05A0D778-7A3F-11EA-A408-12923DDC885E grant_number: F07807 name: Neural stem cells in autism and epilepsy - _id: 265CB4D0-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: I03600 name: Optical control of synaptic function via adhesion molecules publication: Nature Communications publication_identifier: eissn: - 2041-1723 publication_status: published publisher: Springer Nature quality_controlled: '1' related_material: link: - relation: press_release url: https://ist.ac.at/en/news/defective-gene-slows-down-brain-cells/ record: - id: '7800' relation: earlier_version status: public - id: '12401' relation: dissertation_contains status: public status: public title: Cul3 regulates cytoskeleton protein homeostasis and cell migration during a critical window of brain development tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 12 year: '2021' ... --- _id: '10307' abstract: - lang: eng text: Bacteria-host interactions represent a continuous trade-off between benefit and risk. Thus, the host immune response is faced with a non-trivial problem – accommodate beneficial commensals and remove harmful pathogens. This is especially difficult as molecular patterns, such as lipopolysaccharide or specific surface organelles such as pili, are conserved in both, commensal and pathogenic bacteria. Type 1 pili, tightly regulated by phase variation, are considered an important virulence factor of pathogenic bacteria as they facilitate invasion into host cells. While invasion represents a de facto passive mechanism for pathogens to escape the host immune response, we demonstrate a fundamental role of type 1 pili as active modulators of the innate and adaptive immune response. acknowledged_ssus: - _id: LifeSc - _id: Bio - _id: PreCl - _id: EM-Fac alternative_title: - ISTA Thesis article_processing_charge: No author: - first_name: Kathrin full_name: Tomasek, Kathrin id: 3AEC8556-F248-11E8-B48F-1D18A9856A87 last_name: Tomasek orcid: 0000-0003-3768-877X citation: ama: Tomasek K. Pathogenic Escherichia coli hijack the host immune response. 2021. doi:10.15479/at:ista:10307 apa: Tomasek, K. (2021). Pathogenic Escherichia coli hijack the host immune response. Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:10307 chicago: Tomasek, Kathrin. “Pathogenic Escherichia Coli Hijack the Host Immune Response.” Institute of Science and Technology Austria, 2021. https://doi.org/10.15479/at:ista:10307. ieee: K. Tomasek, “Pathogenic Escherichia coli hijack the host immune response,” Institute of Science and Technology Austria, 2021. ista: Tomasek K. 2021. Pathogenic Escherichia coli hijack the host immune response. Institute of Science and Technology Austria. mla: Tomasek, Kathrin. Pathogenic Escherichia Coli Hijack the Host Immune Response. Institute of Science and Technology Austria, 2021, doi:10.15479/at:ista:10307. short: K. Tomasek, Pathogenic Escherichia Coli Hijack the Host Immune Response, Institute of Science and Technology Austria, 2021. date_created: 2021-11-18T15:05:06Z date_published: 2021-11-18T00:00:00Z date_updated: 2023-09-07T13:34:38Z day: '18' ddc: - '570' degree_awarded: PhD department: - _id: MiSi - _id: CaGu - _id: GradSch doi: 10.15479/at:ista:10307 file: - access_level: open_access checksum: b39c9e0ef18d0484d537a67551effd02 content_type: application/pdf creator: ktomasek date_created: 2021-11-18T15:07:31Z date_updated: 2022-12-20T23:30:05Z embargo: 2022-11-18 file_id: '10308' file_name: ThesisTomasekKathrin.pdf file_size: 13266088 relation: main_file - access_level: closed checksum: c0c440ee9e5ef1102a518a4f9f023e7c content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document creator: ktomasek date_created: 2021-11-18T15:07:46Z date_updated: 2022-12-20T23:30:05Z embargo_to: open_access file_id: '10309' file_name: ThesisTomasekKathrin.docx file_size: 7539509 relation: source_file file_date_updated: 2022-12-20T23:30:05Z has_accepted_license: '1' language: - iso: eng month: '11' oa: 1 oa_version: Published Version page: '73' publication_identifier: issn: - 2663-337X publication_status: published publisher: Institute of Science and Technology Austria related_material: record: - id: '10316' relation: part_of_dissertation status: public status: public supervisor: - first_name: Michael K full_name: Sixt, Michael K id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87 last_name: Sixt orcid: 0000-0002-4561-241X - first_name: Calin C full_name: Guet, Calin C id: 47F8433E-F248-11E8-B48F-1D18A9856A87 last_name: Guet orcid: 0000-0001-6220-2052 title: Pathogenic Escherichia coli hijack the host immune response type: dissertation user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 year: '2021' ... --- _id: '10316' abstract: - lang: eng text: A key attribute of persistent or recurring bacterial infections is the ability of the pathogen to evade the host’s immune response. Many Enterobacteriaceae express type 1 pili, a pre-adapted virulence trait, to invade host epithelial cells and establish persistent infections. However, the molecular mechanisms and strategies by which bacteria actively circumvent the immune response of the host remain poorly understood. Here, we identified CD14, the major co-receptor for lipopolysaccharide detection, on dendritic cells as a previously undescribed binding partner of FimH, the protein located at the tip of the type 1 pilus of Escherichia coli. The FimH amino acids involved in CD14 binding are highly conserved across pathogenic and non-pathogenic strains. Binding of pathogenic bacteria to CD14 lead to reduced dendritic cell migration and blunted expression of co-stimulatory molecules, both rate-limiting factors of T cell activation. While defining an active molecular mechanism of immune evasion by pathogens, the interaction between FimH and CD14 represents a potential target to interfere with persistent and recurrent infections, such as urinary tract infections or Crohn’s disease. acknowledged_ssus: - _id: Bio - _id: PreCl - _id: EM-Fac acknowledgement: We thank Ulrich Dobrindt for providing UPEC strain CFT073, Vlad Gavra and Maximilian Götz, Bor Kavčič, Jonna Alanko and Eva Kiermaier for help with experiments and Robert Hauschild, Julian Stopp and Saren Tasciyan for help with data analysis. We thank the IST Austria Scientific Service Units, especially the Bioimaging facility, the Preclinical facility and the Electron microscopy facility for technical support, Jakob Wallner and all members of the Guet and Sixt lab for fruitful discussions and Daria Siekhaus for critically reading the manuscript. This work was supported by grants from the Austrian Research Promotion Agency (FEMtech 868984) to I.G., the European Research Council (CoG 724373) and the Austrian Science Fund (FWF P29911) to M.S. article_processing_charge: No author: - first_name: Kathrin full_name: Tomasek, Kathrin id: 3AEC8556-F248-11E8-B48F-1D18A9856A87 last_name: Tomasek orcid: 0000-0003-3768-877X - 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: Ivana full_name: Glatzová, Ivana id: 727b3c7d-4939-11ec-89b3-b9b0750ab74d last_name: Glatzová - first_name: Michael S. full_name: Lukesch, Michael S. last_name: Lukesch - first_name: Calin C full_name: Guet, Calin C id: 47F8433E-F248-11E8-B48F-1D18A9856A87 last_name: Guet orcid: 0000-0001-6220-2052 - first_name: Michael K full_name: Sixt, Michael K id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87 last_name: Sixt orcid: 0000-0002-4561-241X citation: ama: Tomasek K, Leithner AF, Glatzová I, Lukesch MS, Guet CC, Sixt MK. Type 1 piliated uropathogenic Escherichia coli hijack the host immune response by binding to CD14. bioRxiv. doi:10.1101/2021.10.18.464770 apa: Tomasek, K., Leithner, A. F., Glatzová, I., Lukesch, M. S., Guet, C. C., & Sixt, M. K. (n.d.). Type 1 piliated uropathogenic Escherichia coli hijack the host immune response by binding to CD14. bioRxiv. Cold Spring Harbor Laboratory. https://doi.org/10.1101/2021.10.18.464770 chicago: Tomasek, Kathrin, Alexander F Leithner, Ivana Glatzová, Michael S. Lukesch, Calin C Guet, and Michael K Sixt. “Type 1 Piliated Uropathogenic Escherichia Coli Hijack the Host Immune Response by Binding to CD14.” BioRxiv. Cold Spring Harbor Laboratory, n.d. https://doi.org/10.1101/2021.10.18.464770. ieee: K. Tomasek, A. F. Leithner, I. Glatzová, M. S. Lukesch, C. C. Guet, and M. K. Sixt, “Type 1 piliated uropathogenic Escherichia coli hijack the host immune response by binding to CD14,” bioRxiv. Cold Spring Harbor Laboratory. ista: Tomasek K, Leithner AF, Glatzová I, Lukesch MS, Guet CC, Sixt MK. Type 1 piliated uropathogenic Escherichia coli hijack the host immune response by binding to CD14. bioRxiv, 10.1101/2021.10.18.464770. mla: Tomasek, Kathrin, et al. “Type 1 Piliated Uropathogenic Escherichia Coli Hijack the Host Immune Response by Binding to CD14.” BioRxiv, Cold Spring Harbor Laboratory, doi:10.1101/2021.10.18.464770. short: K. Tomasek, A.F. Leithner, I. Glatzová, M.S. Lukesch, C.C. Guet, M.K. Sixt, BioRxiv (n.d.). date_created: 2021-11-19T12:24:16Z date_published: 2021-10-18T00:00:00Z date_updated: 2024-03-27T23:30:35Z day: '18' department: - _id: CaGu - _id: MiSi doi: 10.1101/2021.10.18.464770 ec_funded: 1 language: - iso: eng main_file_link: - open_access: '1' url: https://www.biorxiv.org/content/10.1101/2021.10.18.464770v1 month: '10' oa: 1 oa_version: Preprint project: - _id: 25FE9508-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '724373' name: Cellular navigation along spatial gradients - _id: 26018E70-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29911 name: Mechanical adaptation of lamellipodial actin publication: bioRxiv publication_status: submitted publisher: Cold Spring Harbor Laboratory related_material: record: - id: '11843' relation: later_version status: public - id: '10307' relation: dissertation_contains status: public status: public title: Type 1 piliated uropathogenic Escherichia coli hijack the host immune response by binding to CD14 type: preprint user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9 year: '2021' ... --- _id: '7234' abstract: - lang: eng text: T lymphocytes utilize amoeboid migration to navigate effectively within complex microenvironments. The precise rearrangement of the actin cytoskeleton required for cellular forward propulsion is mediated by actin regulators, including the actin‐related protein 2/3 (Arp2/3) complex, a macromolecular machine that nucleates branched actin filaments at the leading edge. The consequences of modulating Arp2/3 activity on the biophysical properties of the actomyosin cortex and downstream T cell function are incompletely understood. We report that even a moderate decrease of Arp3 levels in T cells profoundly affects actin cortex integrity. Reduction in total F‐actin content leads to reduced cortical tension and disrupted lamellipodia formation. Instead, in Arp3‐knockdown cells, the motility mode is dominated by blebbing migration characterized by transient, balloon‐like protrusions at the leading edge. Although this migration mode seems to be compatible with interstitial migration in three‐dimensional environments, diminished locomotion kinetics and impaired cytotoxicity interfere with optimal T cell function. These findings define the importance of finely tuned, Arp2/3‐dependent mechanophysical membrane integrity in cytotoxic effector T lymphocyte activities. article_processing_charge: No article_type: original author: - first_name: Peyman full_name: Obeidy, Peyman last_name: Obeidy - first_name: Lining A. full_name: Ju, Lining A. last_name: Ju - first_name: Stefan H. full_name: Oehlers, Stefan H. last_name: Oehlers - first_name: Nursafwana S. full_name: Zulkhernain, Nursafwana S. last_name: Zulkhernain - first_name: Quintin full_name: Lee, Quintin last_name: Lee - first_name: Jorge L. full_name: Galeano Niño, Jorge L. last_name: Galeano Niño - first_name: Rain Y.Q. full_name: Kwan, Rain Y.Q. last_name: Kwan - first_name: Shweta full_name: Tikoo, Shweta last_name: Tikoo - first_name: Lois L. full_name: Cavanagh, Lois L. last_name: Cavanagh - first_name: Paulus full_name: Mrass, Paulus last_name: Mrass - first_name: Adam J.L. full_name: Cook, Adam J.L. last_name: Cook - first_name: Shaun P. full_name: Jackson, Shaun P. last_name: Jackson - first_name: Maté full_name: Biro, Maté last_name: Biro - first_name: Ben full_name: Roediger, Ben last_name: Roediger - 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: Wolfgang full_name: Weninger, Wolfgang last_name: Weninger citation: ama: Obeidy P, Ju LA, Oehlers SH, et al. Partial loss of actin nucleator actin-related protein 2/3 activity triggers blebbing in primary T lymphocytes. Immunology and Cell Biology. 2020;98(2):93-113. doi:10.1111/imcb.12304 apa: Obeidy, P., Ju, L. A., Oehlers, S. H., Zulkhernain, N. S., Lee, Q., Galeano Niño, J. L., … Weninger, W. (2020). Partial loss of actin nucleator actin-related protein 2/3 activity triggers blebbing in primary T lymphocytes. Immunology and Cell Biology. Wiley. https://doi.org/10.1111/imcb.12304 chicago: Obeidy, Peyman, Lining A. Ju, Stefan H. Oehlers, Nursafwana S. Zulkhernain, Quintin Lee, Jorge L. Galeano Niño, Rain Y.Q. Kwan, et al. “Partial Loss of Actin Nucleator Actin-Related Protein 2/3 Activity Triggers Blebbing in Primary T Lymphocytes.” Immunology and Cell Biology. Wiley, 2020. https://doi.org/10.1111/imcb.12304. ieee: P. Obeidy et al., “Partial loss of actin nucleator actin-related protein 2/3 activity triggers blebbing in primary T lymphocytes,” Immunology and Cell Biology, vol. 98, no. 2. Wiley, pp. 93–113, 2020. ista: Obeidy P, Ju LA, Oehlers SH, Zulkhernain NS, Lee Q, Galeano Niño JL, Kwan RYQ, Tikoo S, Cavanagh LL, Mrass P, Cook AJL, Jackson SP, Biro M, Roediger B, Sixt MK, Weninger W. 2020. Partial loss of actin nucleator actin-related protein 2/3 activity triggers blebbing in primary T lymphocytes. Immunology and Cell Biology. 98(2), 93–113. mla: Obeidy, Peyman, et al. “Partial Loss of Actin Nucleator Actin-Related Protein 2/3 Activity Triggers Blebbing in Primary T Lymphocytes.” Immunology and Cell Biology, vol. 98, no. 2, Wiley, 2020, pp. 93–113, doi:10.1111/imcb.12304. short: P. Obeidy, L.A. Ju, S.H. Oehlers, N.S. Zulkhernain, Q. Lee, J.L. Galeano Niño, R.Y.Q. Kwan, S. Tikoo, L.L. Cavanagh, P. Mrass, A.J.L. Cook, S.P. Jackson, M. Biro, B. Roediger, M.K. Sixt, W. Weninger, Immunology and Cell Biology 98 (2020) 93–113. date_created: 2020-01-05T23:00:48Z date_published: 2020-02-01T00:00:00Z date_updated: 2023-08-17T14:21:12Z day: '01' ddc: - '570' department: - _id: MiSi doi: 10.1111/imcb.12304 external_id: isi: - '000503885600001' pmid: - '31698518' file: - access_level: open_access checksum: c389477b4b52172ef76afff8a06c6775 content_type: application/pdf creator: dernst date_created: 2020-11-19T11:22:33Z date_updated: 2020-11-19T11:22:33Z file_id: '8775' file_name: 2020_ImmunologyCellBio_Obeidy.pdf file_size: 8569945 relation: main_file success: 1 file_date_updated: 2020-11-19T11:22:33Z has_accepted_license: '1' intvolume: ' 98' isi: 1 issue: '2' language: - iso: eng month: '02' oa: 1 oa_version: Published Version page: 93-113 pmid: 1 publication: Immunology and Cell Biology publication_identifier: eissn: - '14401711' issn: - '08189641' publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: Partial loss of actin nucleator actin-related protein 2/3 activity triggers blebbing in primary T lymphocytes tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 98 year: '2020' ... --- _id: '7623' 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. 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. article_processing_charge: No article_type: original author: - first_name: Gaspard full_name: Jankowiak, Gaspard last_name: Jankowiak - first_name: Diane full_name: Peurichard, Diane last_name: Peurichard - first_name: Anne full_name: Reversat, Anne id: 35B76592-F248-11E8-B48F-1D18A9856A87 last_name: Reversat orcid: 0000-0003-0666-8928 - first_name: Christian full_name: Schmeiser, Christian last_name: Schmeiser - 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: 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 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 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. 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. 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. 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. short: G. Jankowiak, D. Peurichard, A. Reversat, C. Schmeiser, M.K. Sixt, Mathematical Models and Methods in Applied Sciences 30 (2020) 513–537. date_created: 2020-03-31T11:25:05Z date_published: 2020-03-18T00:00:00Z date_updated: 2023-08-18T10:18:56Z day: '18' department: - _id: MiSi doi: 10.1142/S021820252050013X external_id: arxiv: - '1903.09426' isi: - '000525349900003' intvolume: ' 30' isi: 1 issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1903.09426 month: '03' oa: 1 oa_version: Preprint page: 513-537 project: - _id: 25AD6156-B435-11E9-9278-68D0E5697425 grant_number: LS13-029 name: Modeling of Polarization and Motility of Leukocytes in Three-Dimensional Environments publication: Mathematical Models and Methods in Applied Sciences publication_identifier: issn: - '02182025' publication_status: published publisher: World Scientific quality_controlled: '1' scopus_import: '1' status: public title: Modeling adhesion-independent cell migration type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 30 year: '2020' ... --- _id: '7875' abstract: - lang: eng text: 'Cells navigating through complex tissues face a fundamental challenge: while multiple protrusions explore different paths, the cell needs to avoid entanglement. How a cell surveys and then corrects its own shape is poorly understood. Here, we demonstrate that spatially distinct microtubule dynamics regulate amoeboid cell migration by locally promoting the retraction of protrusions. In migrating dendritic cells, local microtubule depolymerization within protrusions remote from the microtubule organizing center triggers actomyosin contractility controlled by RhoA and its exchange factor Lfc. Depletion of Lfc leads to aberrant myosin localization, thereby causing two effects that rate-limit locomotion: (1) impaired cell edge coordination during path finding and (2) defective adhesion resolution. Compromised shape control is particularly hindering in geometrically complex microenvironments, where it leads to entanglement and ultimately fragmentation of the cell body. We thus demonstrate that microtubules can act as a proprioceptive device: they sense cell shape and control actomyosin retraction to sustain cellular coherence.' acknowledged_ssus: - _id: LifeSc - _id: Bio - _id: PreCl acknowledgement: "The authors thank the Scientific Service Units (Life Sciences, Bioimaging, Preclinical) of the Institute of Science and Technology Austria for excellent support. This work was funded by the European Research Council (ERC StG 281556 and CoG 724373), two grants from the Austrian\r\nScience Fund (FWF; P29911 and DK Nanocell W1250-B20 to M. Sixt) and by the German Research Foundation (DFG SFB1032 project B09) to O. Thorn-Seshold and D. Trauner. J. Renkawitz was supported by ISTFELLOW funding from the People Program (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007-2013) under the Research Executive Agency grant agreement (291734) and a European Molecular Biology Organization long-term fellowship (ALTF 1396-2014) co-funded by the European Commission (LTFCOFUND2013, GA-2013-609409), E. Kiermaier by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC 2151—390873048, and H. Hacker by the American Lebanese Syrian Associated ¨Charities. K.-D. Fischer was supported by the Analysis, Imaging and Modelling of Neuronal and Inflammatory Processes graduate school funded by the Ministry of Economics, Science, and Digitisation of the State Saxony-Anhalt and by the European Funds for Social and Regional Development." article_number: e201907154 article_processing_charge: No article_type: original author: - first_name: Aglaja full_name: Kopf, Aglaja id: 31DAC7B6-F248-11E8-B48F-1D18A9856A87 last_name: Kopf orcid: 0000-0002-2187-6656 - first_name: Jörg full_name: Renkawitz, Jörg id: 3F0587C8-F248-11E8-B48F-1D18A9856A87 last_name: Renkawitz orcid: 0000-0003-2856-3369 - first_name: Robert full_name: Hauschild, Robert id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87 last_name: Hauschild orcid: 0000-0001-9843-3522 - first_name: Irute full_name: Girkontaite, Irute last_name: Girkontaite - first_name: Kerry full_name: Tedford, Kerry last_name: Tedford - first_name: Jack full_name: Merrin, Jack id: 4515C308-F248-11E8-B48F-1D18A9856A87 last_name: Merrin orcid: 0000-0001-5145-4609 - first_name: Oliver full_name: Thorn-Seshold, Oliver last_name: Thorn-Seshold - first_name: Dirk full_name: Trauner, Dirk id: E8F27F48-3EBA-11E9-92A1-B709E6697425 last_name: Trauner - first_name: Hans full_name: Häcker, Hans last_name: Häcker - first_name: Klaus Dieter full_name: Fischer, Klaus Dieter last_name: Fischer - first_name: Eva full_name: Kiermaier, Eva id: 3EB04B78-F248-11E8-B48F-1D18A9856A87 last_name: Kiermaier orcid: 0000-0001-6165-5738 - 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: Kopf A, Renkawitz J, Hauschild R, et al. Microtubules control cellular shape and coherence in amoeboid migrating cells. The Journal of Cell Biology. 2020;219(6). doi:10.1083/jcb.201907154 apa: Kopf, A., Renkawitz, J., Hauschild, R., Girkontaite, I., Tedford, K., Merrin, J., … Sixt, M. K. (2020). Microtubules control cellular shape and coherence in amoeboid migrating cells. The Journal of Cell Biology. Rockefeller University Press. https://doi.org/10.1083/jcb.201907154 chicago: Kopf, Aglaja, Jörg Renkawitz, Robert Hauschild, Irute Girkontaite, Kerry Tedford, Jack Merrin, Oliver Thorn-Seshold, et al. “Microtubules Control Cellular Shape and Coherence in Amoeboid Migrating Cells.” The Journal of Cell Biology. Rockefeller University Press, 2020. https://doi.org/10.1083/jcb.201907154. ieee: A. Kopf et al., “Microtubules control cellular shape and coherence in amoeboid migrating cells,” The Journal of Cell Biology, vol. 219, no. 6. Rockefeller University Press, 2020. ista: Kopf A, Renkawitz J, Hauschild R, Girkontaite I, Tedford K, Merrin J, Thorn-Seshold O, Trauner D, Häcker H, Fischer KD, Kiermaier E, Sixt MK. 2020. Microtubules control cellular shape and coherence in amoeboid migrating cells. The Journal of Cell Biology. 219(6), e201907154. mla: Kopf, Aglaja, et al. “Microtubules Control Cellular Shape and Coherence in Amoeboid Migrating Cells.” The Journal of Cell Biology, vol. 219, no. 6, e201907154, Rockefeller University Press, 2020, doi:10.1083/jcb.201907154. short: A. Kopf, J. Renkawitz, R. Hauschild, I. Girkontaite, K. Tedford, J. Merrin, O. Thorn-Seshold, D. Trauner, H. Häcker, K.D. Fischer, E. Kiermaier, M.K. Sixt, The Journal of Cell Biology 219 (2020). date_created: 2020-05-24T22:00:56Z date_published: 2020-06-01T00:00:00Z date_updated: 2023-08-21T06:28:17Z day: '01' ddc: - '570' department: - _id: MiSi - _id: Bio - _id: NanoFab doi: 10.1083/jcb.201907154 ec_funded: 1 external_id: isi: - '000538141100020' pmid: - '32379884' file: - access_level: open_access checksum: cb0b9c77842ae1214caade7b77e4d82d content_type: application/pdf creator: dernst date_created: 2020-11-24T13:25:13Z date_updated: 2020-11-24T13:25:13Z file_id: '8801' file_name: 2020_JCellBiol_Kopf.pdf file_size: 7536712 relation: main_file success: 1 file_date_updated: 2020-11-24T13:25:13Z has_accepted_license: '1' intvolume: ' 219' isi: 1 issue: '6' language: - iso: eng month: '06' oa: 1 oa_version: Published Version pmid: 1 project: - _id: 25A603A2-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '281556' name: Cytoskeletal force generation and force transduction of migrating leukocytes - _id: 25FE9508-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '724373' name: Cellular navigation along spatial gradients - _id: 26018E70-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29911 name: Mechanical adaptation of lamellipodial actin - _id: 252C3B08-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: W 1250-B20 name: Nano-Analytics of Cellular Systems - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 25A48D24-B435-11E9-9278-68D0E5697425 grant_number: ALTF 1396-2014 name: Molecular and system level view of immune cell migration publication: The Journal of Cell Biology publication_identifier: eissn: - 1540-8140 publication_status: published publisher: Rockefeller University Press quality_controlled: '1' scopus_import: '1' status: public title: Microtubules control cellular shape and coherence in amoeboid migrating cells tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 219 year: '2020' ... --- _id: '7876' abstract: - lang: eng text: 'In contrast to lymph nodes, the lymphoid regions of the spleen—the white pulp—are located deep within the organ, yielding the trafficking paths of T cells in the white pulp largely invisible. In an intravital microscopy tour de force reported in this issue of Immunity, Chauveau et al. show that T cells perform unidirectional, perivascular migration through the enigmatic marginal zone bridging channels. ' article_processing_charge: No article_type: original author: - 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: Tim full_name: Lämmermann, Tim last_name: Lämmermann citation: ama: 'Sixt MK, Lämmermann T. T cells: Bridge-and-channel commute to the white pulp. Immunity. 2020;52(5):721-723. doi:10.1016/j.immuni.2020.04.020' apa: 'Sixt, M. K., & Lämmermann, T. (2020). T cells: Bridge-and-channel commute to the white pulp. Immunity. Elsevier. https://doi.org/10.1016/j.immuni.2020.04.020' chicago: 'Sixt, Michael K, and Tim Lämmermann. “T Cells: Bridge-and-Channel Commute to the White Pulp.” Immunity. Elsevier, 2020. https://doi.org/10.1016/j.immuni.2020.04.020.' ieee: 'M. K. Sixt and T. Lämmermann, “T cells: Bridge-and-channel commute to the white pulp,” Immunity, vol. 52, no. 5. Elsevier, pp. 721–723, 2020.' ista: 'Sixt MK, Lämmermann T. 2020. T cells: Bridge-and-channel commute to the white pulp. Immunity. 52(5), 721–723.' mla: 'Sixt, Michael K., and Tim Lämmermann. “T Cells: Bridge-and-Channel Commute to the White Pulp.” Immunity, vol. 52, no. 5, Elsevier, 2020, pp. 721–23, doi:10.1016/j.immuni.2020.04.020.' short: M.K. Sixt, T. Lämmermann, Immunity 52 (2020) 721–723. date_created: 2020-05-24T22:00:57Z date_published: 2020-05-19T00:00:00Z date_updated: 2023-08-21T06:27:18Z day: '19' department: - _id: MiSi doi: 10.1016/j.immuni.2020.04.020 external_id: isi: - '000535371100002' intvolume: ' 52' isi: 1 issue: '5' language: - iso: eng main_file_link: - open_access: '1' url: https://pure.mpg.de/pubman/item/item_3265599_2/component/file_3265620/Sixt%20et%20al..pdf month: '05' oa: 1 oa_version: Published Version page: 721-723 publication: Immunity publication_identifier: eissn: - '10974180' issn: - '10747613' publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: 'T cells: Bridge-and-channel commute to the white pulp' type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 52 year: '2020' ... --- _id: '7909' abstract: - lang: eng text: Cell migration entails networks and bundles of actin filaments termed lamellipodia and microspikes or filopodia, respectively, as well as focal adhesions, all of which recruit Ena/VASP family members hitherto thought to antagonize efficient cell motility. However, we find these proteins to act as positive regulators of migration in different murine cell lines. CRISPR/Cas9-mediated loss of Ena/VASP proteins reduced lamellipodial actin assembly and perturbed lamellipodial architecture, as evidenced by changed network geometry as well as reduction of filament length and number that was accompanied by abnormal Arp2/3 complex and heterodimeric capping protein accumulation. Loss of Ena/VASP function also abolished the formation of microspikes normally embedded in lamellipodia, but not of filopodia capable of emanating without lamellipodia. Ena/VASP-deficiency also impaired integrin-mediated adhesion accompanied by reduced traction forces exerted through these structures. Our data thus uncover novel Ena/VASP functions of these actin polymerases that are fully consistent with their promotion of cell migration. article_number: e55351 article_processing_charge: No article_type: original author: - first_name: Julia full_name: Damiano-Guercio, Julia last_name: Damiano-Guercio - first_name: Laëtitia full_name: Kurzawa, Laëtitia last_name: Kurzawa - first_name: Jan full_name: Müller, Jan id: AD07FDB4-0F61-11EA-8158-C4CC64CEAA8D last_name: Müller - first_name: Georgi A full_name: Dimchev, Georgi A id: 38C393BE-F248-11E8-B48F-1D18A9856A87 last_name: Dimchev orcid: 0000-0001-8370-6161 - first_name: Matthias full_name: Schaks, Matthias last_name: Schaks - first_name: Maria full_name: Nemethova, Maria id: 34E27F1C-F248-11E8-B48F-1D18A9856A87 last_name: Nemethova - first_name: Thomas full_name: Pokrant, Thomas last_name: Pokrant - first_name: Stefan full_name: Brühmann, Stefan last_name: Brühmann - first_name: Joern full_name: Linkner, Joern last_name: Linkner - first_name: Laurent full_name: Blanchoin, Laurent last_name: Blanchoin - 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: Klemens full_name: Rottner, Klemens last_name: Rottner - first_name: Jan full_name: Faix, Jan last_name: Faix citation: ama: Damiano-Guercio J, Kurzawa L, Müller J, et al. Loss of Ena/VASP interferes with lamellipodium architecture, motility and integrin-dependent adhesion. eLife. 2020;9. doi:10.7554/eLife.55351 apa: Damiano-Guercio, J., Kurzawa, L., Müller, J., Dimchev, G. A., Schaks, M., Nemethova, M., … Faix, J. (2020). Loss of Ena/VASP interferes with lamellipodium architecture, motility and integrin-dependent adhesion. ELife. eLife Sciences Publications. https://doi.org/10.7554/eLife.55351 chicago: Damiano-Guercio, Julia, Laëtitia Kurzawa, Jan Müller, Georgi A Dimchev, Matthias Schaks, Maria Nemethova, Thomas Pokrant, et al. “Loss of Ena/VASP Interferes with Lamellipodium Architecture, Motility and Integrin-Dependent Adhesion.” ELife. eLife Sciences Publications, 2020. https://doi.org/10.7554/eLife.55351. ieee: J. Damiano-Guercio et al., “Loss of Ena/VASP interferes with lamellipodium architecture, motility and integrin-dependent adhesion,” eLife, vol. 9. eLife Sciences Publications, 2020. ista: Damiano-Guercio J, Kurzawa L, Müller J, Dimchev GA, Schaks M, Nemethova M, Pokrant T, Brühmann S, Linkner J, Blanchoin L, Sixt MK, Rottner K, Faix J. 2020. Loss of Ena/VASP interferes with lamellipodium architecture, motility and integrin-dependent adhesion. eLife. 9, e55351. mla: Damiano-Guercio, Julia, et al. “Loss of Ena/VASP Interferes with Lamellipodium Architecture, Motility and Integrin-Dependent Adhesion.” ELife, vol. 9, e55351, eLife Sciences Publications, 2020, doi:10.7554/eLife.55351. short: J. Damiano-Guercio, L. Kurzawa, J. Müller, G.A. Dimchev, M. Schaks, M. Nemethova, T. Pokrant, S. Brühmann, J. Linkner, L. Blanchoin, M.K. Sixt, K. Rottner, J. Faix, ELife 9 (2020). date_created: 2020-05-31T22:00:49Z date_published: 2020-05-11T00:00:00Z date_updated: 2023-08-21T06:32:25Z day: '11' ddc: - '570' department: - _id: MiSi doi: 10.7554/eLife.55351 ec_funded: 1 external_id: isi: - '000537208000001' file: - access_level: open_access checksum: d33bd4441b9a0195718ce1ba5d2c48a6 content_type: application/pdf creator: dernst date_created: 2020-06-02T10:35:37Z date_updated: 2020-07-14T12:48:05Z file_id: '7914' file_name: 2020_eLife_Damiano_Guercio.pdf file_size: 10535713 relation: main_file file_date_updated: 2020-07-14T12:48:05Z has_accepted_license: '1' intvolume: ' 9' isi: 1 language: - iso: eng month: '05' oa: 1 oa_version: Published Version project: - _id: 25FE9508-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '724373' name: Cellular navigation along spatial gradients publication: eLife publication_identifier: eissn: - 2050084X publication_status: published publisher: eLife Sciences Publications quality_controlled: '1' scopus_import: '1' status: public title: Loss of Ena/VASP interferes with lamellipodium architecture, motility and integrin-dependent adhesion tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 9 year: '2020' ... --- _id: '8132' abstract: - lang: eng text: The WAVE regulatory complex (WRC) is crucial for assembly of the peripheral branched actin network constituting one of the main drivers of eukaryotic cell migration. Here, we uncover an essential role of the hematopoietic-specific WRC component HEM1 for immune cell development. Germline-encoded HEM1 deficiency underlies an inborn error of immunity with systemic autoimmunity, at cellular level marked by WRC destabilization, reduced filamentous actin, and failure to assemble lamellipodia. Hem1−/− mice display systemic autoimmunity, phenocopying the human disease. In the absence of Hem1, B cells become deprived of extracellular stimuli necessary to maintain the strength of B cell receptor signaling at a level permissive for survival of non-autoreactive B cells. This shifts the balance of B cell fate choices toward autoreactive B cells and thus autoimmunity. article_number: eabc3979 article_processing_charge: No article_type: original author: - first_name: Elisabeth full_name: Salzer, Elisabeth last_name: Salzer - first_name: Samaneh full_name: Zoghi, Samaneh last_name: Zoghi - first_name: Máté G. full_name: Kiss, Máté G. last_name: Kiss - first_name: Frieda full_name: Kage, Frieda last_name: Kage - first_name: Christina full_name: Rashkova, Christina last_name: Rashkova - first_name: Stephanie full_name: Stahnke, Stephanie last_name: Stahnke - first_name: Matthias full_name: Haimel, Matthias last_name: Haimel - first_name: René full_name: Platzer, René last_name: Platzer - first_name: Michael full_name: Caldera, Michael last_name: Caldera - first_name: Rico Chandra full_name: Ardy, Rico Chandra last_name: Ardy - first_name: Birgit full_name: Hoeger, Birgit last_name: Hoeger - first_name: Jana full_name: Block, Jana last_name: Block - first_name: David full_name: Medgyesi, David last_name: Medgyesi - first_name: Celine full_name: Sin, Celine last_name: Sin - first_name: Sepideh full_name: Shahkarami, Sepideh last_name: Shahkarami - first_name: Renate full_name: Kain, Renate last_name: Kain - first_name: Vahid full_name: Ziaee, Vahid last_name: Ziaee - first_name: Peter full_name: Hammerl, Peter last_name: Hammerl - first_name: Christoph full_name: Bock, Christoph last_name: Bock - first_name: Jörg full_name: Menche, Jörg last_name: Menche - first_name: Loïc full_name: Dupré, Loïc last_name: Dupré - first_name: Johannes B. full_name: Huppa, Johannes B. last_name: Huppa - 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: Alexis full_name: Lomakin, Alexis last_name: Lomakin - first_name: Klemens full_name: Rottner, Klemens last_name: Rottner - first_name: Christoph J. full_name: Binder, Christoph J. last_name: Binder - first_name: Theresia E.B. full_name: Stradal, Theresia E.B. last_name: Stradal - first_name: Nima full_name: Rezaei, Nima last_name: Rezaei - first_name: Kaan full_name: Boztug, Kaan last_name: Boztug citation: ama: Salzer E, Zoghi S, Kiss MG, et al. The cytoskeletal regulator HEM1 governs B cell development and prevents autoimmunity. Science Immunology. 2020;5(49). doi:10.1126/sciimmunol.abc3979 apa: Salzer, E., Zoghi, S., Kiss, M. G., Kage, F., Rashkova, C., Stahnke, S., … Boztug, K. (2020). The cytoskeletal regulator HEM1 governs B cell development and prevents autoimmunity. Science Immunology. AAAS. https://doi.org/10.1126/sciimmunol.abc3979 chicago: Salzer, Elisabeth, Samaneh Zoghi, Máté G. Kiss, Frieda Kage, Christina Rashkova, Stephanie Stahnke, Matthias Haimel, et al. “The Cytoskeletal Regulator HEM1 Governs B Cell Development and Prevents Autoimmunity.” Science Immunology. AAAS, 2020. https://doi.org/10.1126/sciimmunol.abc3979. ieee: E. Salzer et al., “The cytoskeletal regulator HEM1 governs B cell development and prevents autoimmunity,” Science Immunology, vol. 5, no. 49. AAAS, 2020. ista: Salzer E, Zoghi S, Kiss MG, Kage F, Rashkova C, Stahnke S, Haimel M, Platzer R, Caldera M, Ardy RC, Hoeger B, Block J, Medgyesi D, Sin C, Shahkarami S, Kain R, Ziaee V, Hammerl P, Bock C, Menche J, Dupré L, Huppa JB, Sixt MK, Lomakin A, Rottner K, Binder CJ, Stradal TEB, Rezaei N, Boztug K. 2020. The cytoskeletal regulator HEM1 governs B cell development and prevents autoimmunity. Science Immunology. 5(49), eabc3979. mla: Salzer, Elisabeth, et al. “The Cytoskeletal Regulator HEM1 Governs B Cell Development and Prevents Autoimmunity.” Science Immunology, vol. 5, no. 49, eabc3979, AAAS, 2020, doi:10.1126/sciimmunol.abc3979. short: E. Salzer, S. Zoghi, M.G. Kiss, F. Kage, C. Rashkova, S. Stahnke, M. Haimel, R. Platzer, M. Caldera, R.C. Ardy, B. Hoeger, J. Block, D. Medgyesi, C. Sin, S. Shahkarami, R. Kain, V. Ziaee, P. Hammerl, C. Bock, J. Menche, L. Dupré, J.B. Huppa, M.K. Sixt, A. Lomakin, K. Rottner, C.J. Binder, T.E.B. Stradal, N. Rezaei, K. Boztug, Science Immunology 5 (2020). date_created: 2020-07-19T22:00:58Z date_published: 2020-07-10T00:00:00Z date_updated: 2023-08-22T07:56:04Z day: '10' department: - _id: MiSi doi: 10.1126/sciimmunol.abc3979 external_id: isi: - '000546994600004' pmid: - '32646852' intvolume: ' 5' isi: 1 issue: '49' language: - iso: eng month: '07' oa_version: None pmid: 1 publication: Science Immunology publication_identifier: eissn: - '24709468' publication_status: published publisher: AAAS quality_controlled: '1' scopus_import: '1' status: public title: The cytoskeletal regulator HEM1 governs B cell development and prevents autoimmunity type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 5 year: '2020' ... --- _id: '8787' abstract: - lang: eng text: Breakdown of vascular barriers is a major complication of inflammatory diseases. Anucleate platelets form blood-clots during thrombosis, but also play a crucial role in inflammation. While spatio-temporal dynamics of clot formation are well characterized, the cell-biological mechanisms of platelet recruitment to inflammatory micro-environments remain incompletely understood. Here we identify Arp2/3-dependent lamellipodia formation as a prominent morphological feature of immune-responsive platelets. Platelets use lamellipodia to scan for fibrin(ogen) deposited on the inflamed vasculature and to directionally spread, to polarize and to govern haptotactic migration along gradients of the adhesive ligand. Platelet-specific abrogation of Arp2/3 interferes with haptotactic repositioning of platelets to microlesions, thus impairing vascular sealing and provoking inflammatory microbleeding. During infection, haptotaxis promotes capture of bacteria and prevents hematogenic dissemination, rendering platelets gate-keepers of the inflamed microvasculature. Consequently, these findings identify haptotaxis as a key effector function of immune-responsive platelets. acknowledgement: "We thank Sebastian Helmer, Nicole Blount, Christine Mann, and Beate Jantz for technical assistance; Hellen Ishikawa-Ankerhold for help and advice; Michael Sixt for critical\r\ndiscussions. This study was supported by the DFG SFB 914 (S.M. [B02 and Z01], K.Sch.\r\n[B02], B.W. [A02 and Z03], C.A.R. [B03], C.S. [A10], J.P. [Gerok position]), the DFG\r\nSFB 1123 (S.M. [B06]), the DFG FOR 2033 (S.M. and F.G.), the German Center for\r\nCardiovascular Research (DZHK) (Clinician Scientist Program [L.N.], MHA 1.4VD\r\n[S.M.], Postdoc Start-up Grant, 81×3600213 [F.G.]), FP7 program (project 260309,\r\nPRESTIGE [S.M.]), FöFoLe project 1015/1009 (L.N.), FöFoLe project 947 (F.G.), the\r\nFriedrich-Baur-Stiftung project 41/16 (F.G.), and LMUexcellence NFF (F.G.). This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement no.\r\n833440) (S.M.). F.G. received funding from the European Union’s Horizon 2020 research\r\nand innovation program under the Marie Skłodowska-Curie grant agreement no.\r\n747687." article_number: '5778' article_processing_charge: No article_type: original author: - first_name: Leo full_name: Nicolai, Leo last_name: Nicolai - first_name: Karin full_name: Schiefelbein, Karin last_name: Schiefelbein - first_name: Silvia full_name: Lipsky, Silvia last_name: Lipsky - first_name: Alexander full_name: Leunig, Alexander last_name: Leunig - first_name: Marie full_name: Hoffknecht, Marie last_name: Hoffknecht - first_name: Kami full_name: Pekayvaz, Kami last_name: Pekayvaz - first_name: Ben full_name: Raude, Ben last_name: Raude - first_name: Charlotte full_name: Marx, Charlotte last_name: Marx - first_name: Andreas full_name: Ehrlich, Andreas last_name: Ehrlich - first_name: Joachim full_name: Pircher, Joachim last_name: Pircher - first_name: Zhe full_name: Zhang, Zhe last_name: Zhang - first_name: Inas full_name: Saleh, Inas last_name: Saleh - first_name: Anna-Kristina full_name: Marel, Anna-Kristina last_name: Marel - first_name: Achim full_name: Löf, Achim last_name: Löf - first_name: Tobias full_name: Petzold, Tobias last_name: Petzold - first_name: Michael full_name: Lorenz, Michael last_name: Lorenz - first_name: Konstantin full_name: Stark, Konstantin last_name: Stark - first_name: Robert full_name: Pick, Robert last_name: Pick - first_name: Gerhild full_name: Rosenberger, Gerhild last_name: Rosenberger - first_name: Ludwig full_name: Weckbach, Ludwig last_name: Weckbach - first_name: Bernd full_name: Uhl, Bernd last_name: Uhl - first_name: Sheng full_name: Xia, Sheng last_name: Xia - first_name: Christoph Andreas full_name: Reichel, Christoph Andreas last_name: Reichel - first_name: Barbara full_name: Walzog, Barbara last_name: Walzog - first_name: Christian full_name: Schulz, Christian last_name: Schulz - first_name: Vanessa full_name: Zheden, Vanessa id: 39C5A68A-F248-11E8-B48F-1D18A9856A87 last_name: Zheden orcid: 0000-0002-9438-4783 - first_name: Markus full_name: Bender, Markus last_name: Bender - first_name: Rong full_name: Li, Rong last_name: Li - first_name: Steffen full_name: Massberg, Steffen last_name: Massberg - first_name: Florian R full_name: Gärtner, Florian R id: 397A88EE-F248-11E8-B48F-1D18A9856A87 last_name: Gärtner orcid: 0000-0001-6120-3723 citation: ama: Nicolai L, Schiefelbein K, Lipsky S, et al. Vascular surveillance by haptotactic blood platelets in inflammation and infection. Nature Communications. 2020;11. doi:10.1038/s41467-020-19515-0 apa: Nicolai, L., Schiefelbein, K., Lipsky, S., Leunig, A., Hoffknecht, M., Pekayvaz, K., … Gärtner, F. R. (2020). Vascular surveillance by haptotactic blood platelets in inflammation and infection. Nature Communications. Springer Nature. https://doi.org/10.1038/s41467-020-19515-0 chicago: Nicolai, Leo, Karin Schiefelbein, Silvia Lipsky, Alexander Leunig, Marie Hoffknecht, Kami Pekayvaz, Ben Raude, et al. “Vascular Surveillance by Haptotactic Blood Platelets in Inflammation and Infection.” Nature Communications. Springer Nature, 2020. https://doi.org/10.1038/s41467-020-19515-0. ieee: L. Nicolai et al., “Vascular surveillance by haptotactic blood platelets in inflammation and infection,” Nature Communications, vol. 11. Springer Nature, 2020. ista: Nicolai L, Schiefelbein K, Lipsky S, Leunig A, Hoffknecht M, Pekayvaz K, Raude B, Marx C, Ehrlich A, Pircher J, Zhang Z, Saleh I, Marel A-K, Löf A, Petzold T, Lorenz M, Stark K, Pick R, Rosenberger G, Weckbach L, Uhl B, Xia S, Reichel CA, Walzog B, Schulz C, Zheden V, Bender M, Li R, Massberg S, Gärtner FR. 2020. Vascular surveillance by haptotactic blood platelets in inflammation and infection. Nature Communications. 11, 5778. mla: Nicolai, Leo, et al. “Vascular Surveillance by Haptotactic Blood Platelets in Inflammation and Infection.” Nature Communications, vol. 11, 5778, Springer Nature, 2020, doi:10.1038/s41467-020-19515-0. short: L. Nicolai, K. Schiefelbein, S. Lipsky, A. Leunig, M. Hoffknecht, K. Pekayvaz, B. Raude, C. Marx, A. Ehrlich, J. Pircher, Z. Zhang, I. Saleh, A.-K. Marel, A. Löf, T. Petzold, M. Lorenz, K. Stark, R. Pick, G. Rosenberger, L. Weckbach, B. Uhl, S. Xia, C.A. Reichel, B. Walzog, C. Schulz, V. Zheden, M. Bender, R. Li, S. Massberg, F.R. Gärtner, Nature Communications 11 (2020). date_created: 2020-11-22T23:01:23Z date_published: 2020-11-13T00:00:00Z date_updated: 2023-08-22T13:26:26Z day: '13' ddc: - '570' department: - _id: MiSi - _id: EM-Fac doi: 10.1038/s41467-020-19515-0 ec_funded: 1 external_id: isi: - '000594648000014' pmid: - '33188196' file: - access_level: open_access checksum: 485b7b6cf30198ba0ce126491a28f125 content_type: application/pdf creator: dernst date_created: 2020-11-23T13:29:49Z date_updated: 2020-11-23T13:29:49Z file_id: '8798' file_name: 2020_NatureComm_Nicolai.pdf file_size: 7035340 relation: main_file success: 1 file_date_updated: 2020-11-23T13:29:49Z has_accepted_license: '1' intvolume: ' 11' isi: 1 language: - iso: eng month: '11' oa: 1 oa_version: Published Version pmid: 1 project: - _id: 260AA4E2-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '747687' name: Mechanical Adaptation of Lamellipodial Actin Networks in Migrating Cells publication: Nature Communications publication_identifier: eissn: - '20411723' publication_status: published publisher: Springer Nature quality_controlled: '1' related_material: link: - relation: erratum url: https://doi.org/10.1038/s41467-022-31310-7 scopus_import: '1' status: public title: Vascular surveillance by haptotactic blood platelets in inflammation and infection tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 11 year: '2020' ... --- _id: '8142' abstract: - lang: eng text: Cell production and differentiation for the acquisition of specific functions are key features of living systems. The dynamic network of cellular microtubules provides the necessary platform to accommodate processes associated with the transition of cells through the individual phases of cytogenesis. Here, we show that the plant hormone cytokinin fine‐tunes the activity of the microtubular cytoskeleton during cell differentiation and counteracts microtubular rearrangements driven by the hormone auxin. The endogenous upward gradient of cytokinin activity along the longitudinal growth axis in Arabidopsis thaliana roots correlates with robust rearrangements of the microtubule cytoskeleton in epidermal cells progressing from the proliferative to the differentiation stage. Controlled increases in cytokinin activity result in premature re‐organization of the microtubule network from transversal to an oblique disposition in cells prior to their differentiation, whereas attenuated hormone perception delays cytoskeleton conversion into a configuration typical for differentiated cells. Intriguingly, cytokinin can interfere with microtubules also in animal cells, such as leukocytes, suggesting that a cytokinin‐sensitive control pathway for the microtubular cytoskeleton may be at least partially conserved between plant and animal cells. acknowledged_ssus: - _id: Bio - _id: LifeSc acknowledgement: We thank Takashi Aoyama, David Alabadi, and Bert De Rybel for sharing material, Jiří Friml, Maciek Adamowski, and Katerina Schwarzerová for inspiring discussions, and Martine De Cock for help in preparing the manuscript. This research was supported by the Scientific Service Units (SSUs) of IST Austria through resources provided by the Bioimaging Facility (BIF), especially to Robert Hauschild; and the Life Science Facility (LSF). J.C.M. is the recipient of a EMBO Long‐Term Fellowship (ALTF number 710‐2016). This work was supported with MEYS CR, project no.CZ.02.1.01/0.0/0.0/16_019/0000738 to J.P., and by the Austrian Science Fund (FWF01_I1774S) to E.B. article_number: e104238 article_processing_charge: Yes (via OA deal) article_type: original author: - first_name: Juan C full_name: Montesinos López, Juan C id: 310A8E3E-F248-11E8-B48F-1D18A9856A87 last_name: Montesinos López orcid: 0000-0001-9179-6099 - first_name: A full_name: Abuzeineh, A last_name: Abuzeineh - first_name: Aglaja full_name: Kopf, Aglaja id: 31DAC7B6-F248-11E8-B48F-1D18A9856A87 last_name: Kopf orcid: 0000-0002-2187-6656 - first_name: Alba full_name: Juanes Garcia, Alba id: 40F05888-F248-11E8-B48F-1D18A9856A87 last_name: Juanes Garcia orcid: 0000-0002-1009-9652 - first_name: Krisztina full_name: Ötvös, Krisztina id: 29B901B0-F248-11E8-B48F-1D18A9856A87 last_name: Ötvös orcid: 0000-0002-5503-4983 - first_name: J full_name: Petrášek, J last_name: Petrášek - 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: Eva full_name: Benková, Eva id: 38F4F166-F248-11E8-B48F-1D18A9856A87 last_name: Benková orcid: 0000-0002-8510-9739 citation: ama: Montesinos López JC, Abuzeineh A, Kopf A, et al. Phytohormone cytokinin guides microtubule dynamics during cell progression from proliferative to differentiated stage. The Embo Journal. 2020;39(17). doi:10.15252/embj.2019104238 apa: Montesinos López, J. C., Abuzeineh, A., Kopf, A., Juanes Garcia, A., Ötvös, K., Petrášek, J., … Benková, E. (2020). Phytohormone cytokinin guides microtubule dynamics during cell progression from proliferative to differentiated stage. The Embo Journal. Embo Press. https://doi.org/10.15252/embj.2019104238 chicago: Montesinos López, Juan C, A Abuzeineh, Aglaja Kopf, Alba Juanes Garcia, Krisztina Ötvös, J Petrášek, Michael K Sixt, and Eva Benková. “Phytohormone Cytokinin Guides Microtubule Dynamics during Cell Progression from Proliferative to Differentiated Stage.” The Embo Journal. Embo Press, 2020. https://doi.org/10.15252/embj.2019104238. ieee: J. C. Montesinos López et al., “Phytohormone cytokinin guides microtubule dynamics during cell progression from proliferative to differentiated stage,” The Embo Journal, vol. 39, no. 17. Embo Press, 2020. ista: Montesinos López JC, Abuzeineh A, Kopf A, Juanes Garcia A, Ötvös K, Petrášek J, Sixt MK, Benková E. 2020. Phytohormone cytokinin guides microtubule dynamics during cell progression from proliferative to differentiated stage. The Embo Journal. 39(17), e104238. mla: Montesinos López, Juan C., et al. “Phytohormone Cytokinin Guides Microtubule Dynamics during Cell Progression from Proliferative to Differentiated Stage.” The Embo Journal, vol. 39, no. 17, e104238, Embo Press, 2020, doi:10.15252/embj.2019104238. short: J.C. Montesinos López, A. Abuzeineh, A. Kopf, A. Juanes Garcia, K. Ötvös, J. Petrášek, M.K. Sixt, E. Benková, The Embo Journal 39 (2020). date_created: 2020-07-21T09:08:38Z date_published: 2020-09-01T00:00:00Z date_updated: 2023-09-05T13:05:47Z day: '01' ddc: - '580' department: - _id: MiSi - _id: EvBe doi: 10.15252/embj.2019104238 external_id: isi: - '000548311800001' pmid: - '32667089' file: - access_level: open_access checksum: 43d2b36598708e6ab05c69074e191d57 content_type: application/pdf creator: dernst date_created: 2020-12-02T09:13:23Z date_updated: 2020-12-02T09:13:23Z file_id: '8827' file_name: 2020_EMBO_Montesinos.pdf file_size: 3497156 relation: main_file success: 1 file_date_updated: 2020-12-02T09:13:23Z has_accepted_license: '1' intvolume: ' 39' isi: 1 issue: '17' language: - iso: eng month: '09' oa: 1 oa_version: Published Version pmid: 1 project: - _id: 253E54C8-B435-11E9-9278-68D0E5697425 grant_number: ALTF710-2016 name: Molecular mechanism of auxindriven formative divisions delineating lateral root organogenesis in plants - _id: 2542D156-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: I 1774-B16 name: Hormone cross-talk drives nutrient dependent plant development publication: The Embo Journal publication_identifier: eissn: - 1460-2075 issn: - 0261-4189 publication_status: published publisher: Embo Press quality_controlled: '1' scopus_import: '1' status: public title: Phytohormone cytokinin guides microtubule dynamics during cell progression from proliferative to differentiated stage 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: 39 year: '2020' ... --- _id: '7885' 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. acknowledged_ssus: - _id: Bio - _id: LifeSc - _id: M-Shop 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. article_processing_charge: No article_type: original author: - first_name: Anne full_name: Reversat, Anne id: 35B76592-F248-11E8-B48F-1D18A9856A87 last_name: Reversat orcid: 0000-0003-0666-8928 - first_name: Florian R full_name: Gärtner, Florian R id: 397A88EE-F248-11E8-B48F-1D18A9856A87 last_name: Gärtner orcid: 0000-0001-6120-3723 - first_name: Jack full_name: Merrin, Jack id: 4515C308-F248-11E8-B48F-1D18A9856A87 last_name: Merrin orcid: 0000-0001-5145-4609 - first_name: Julian A full_name: Stopp, Julian A id: 489E3F00-F248-11E8-B48F-1D18A9856A87 last_name: Stopp - first_name: Saren full_name: Tasciyan, Saren id: 4323B49C-F248-11E8-B48F-1D18A9856A87 last_name: Tasciyan orcid: 0000-0003-1671-393X - first_name: Juan L full_name: Aguilera Servin, Juan L id: 2A67C376-F248-11E8-B48F-1D18A9856A87 last_name: Aguilera Servin orcid: 0000-0002-2862-8372 - first_name: Ingrid full_name: De Vries, Ingrid id: 4C7D837E-F248-11E8-B48F-1D18A9856A87 last_name: De Vries - first_name: Robert full_name: Hauschild, Robert id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87 last_name: Hauschild orcid: 0000-0001-9843-3522 - first_name: Miroslav full_name: Hons, Miroslav id: 4167FE56-F248-11E8-B48F-1D18A9856A87 last_name: Hons orcid: 0000-0002-6625-3348 - first_name: Matthieu full_name: Piel, Matthieu last_name: Piel - first_name: Andrew full_name: Callan-Jones, Andrew last_name: Callan-Jones - first_name: Raphael full_name: Voituriez, Raphael last_name: Voituriez - 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: 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 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. 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. 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. 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. date_created: 2020-05-24T22:01:01Z date_published: 2020-06-25T00:00:00Z date_updated: 2024-03-27T23:30:23Z day: '25' department: - _id: NanoFab - _id: Bio - _id: MiSi doi: 10.1038/s41586-020-2283-z ec_funded: 1 external_id: isi: - '000532688300008' intvolume: ' 582' isi: 1 language: - iso: eng month: '06' oa_version: None page: 582–585 project: - _id: 25A603A2-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '281556' name: Cytoskeletal force generation and force transduction of migrating leukocytes - _id: 25FE9508-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '724373' name: Cellular navigation along spatial gradients - _id: 26018E70-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P29911 name: Mechanical adaptation of lamellipodial actin - _id: 260AA4E2-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '747687' name: Mechanical Adaptation of Lamellipodial Actin Networks in Migrating Cells publication: Nature publication_identifier: eissn: - '14764687' issn: - '00280836' publication_status: published publisher: Springer Nature quality_controlled: '1' related_material: 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/ record: - id: '14697' relation: dissertation_contains status: public - id: '12401' relation: dissertation_contains status: public scopus_import: '1' status: public title: Cellular locomotion using environmental topography type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 582 year: '2020' ... --- _id: '8190' article_number: e202007029 article_processing_charge: No article_type: letter_note author: - 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: Anna full_name: Huttenlocher, Anna last_name: Huttenlocher citation: ama: 'Sixt MK, Huttenlocher A. Zena Werb (1945-2020): Cell biology in context. The Journal of Cell Biology. 2020;219(8). doi:10.1083/jcb.202007029' apa: 'Sixt, M. K., & Huttenlocher, A. (2020). Zena Werb (1945-2020): Cell biology in context. The Journal of Cell Biology. Rockefeller University Press. https://doi.org/10.1083/jcb.202007029' chicago: 'Sixt, Michael K, and Anna Huttenlocher. “Zena Werb (1945-2020): Cell Biology in Context.” The Journal of Cell Biology. Rockefeller University Press, 2020. https://doi.org/10.1083/jcb.202007029.' ieee: 'M. K. Sixt and A. Huttenlocher, “Zena Werb (1945-2020): Cell biology in context,” The Journal of Cell Biology, vol. 219, no. 8. Rockefeller University Press, 2020.' ista: 'Sixt MK, Huttenlocher A. 2020. Zena Werb (1945-2020): Cell biology in context. The Journal of Cell Biology. 219(8), e202007029.' mla: 'Sixt, Michael K., and Anna Huttenlocher. “Zena Werb (1945-2020): Cell Biology in Context.” The Journal of Cell Biology, vol. 219, no. 8, e202007029, Rockefeller University Press, 2020, doi:10.1083/jcb.202007029.' short: M.K. Sixt, A. Huttenlocher, The Journal of Cell Biology 219 (2020). date_created: 2020-08-02T22:00:57Z date_published: 2020-07-22T00:00:00Z date_updated: 2023-10-17T10:04:49Z day: '22' ddc: - '570' department: - _id: MiSi doi: 10.1083/jcb.202007029 external_id: isi: - '000573631000004' file: - access_level: open_access checksum: 30016d778d266b8e17d01094917873b8 content_type: application/pdf creator: dernst date_created: 2020-08-04T13:11:52Z date_updated: 2021-02-02T23:30:03Z embargo: 2021-02-01 file_id: '8200' file_name: 2020_JCB_Sixt.pdf file_size: 830725 relation: main_file file_date_updated: 2021-02-02T23:30:03Z has_accepted_license: '1' intvolume: ' 219' isi: 1 issue: '8' language: - iso: eng month: '07' oa: 1 oa_version: Published Version publication: The Journal of Cell Biology publication_identifier: eissn: - 1540-8140 publication_status: published publisher: Rockefeller University Press scopus_import: '1' status: public title: 'Zena Werb (1945-2020): Cell biology in context' 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: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 219 year: '2020' ... --- _id: '6824' abstract: - lang: eng text: Platelets are small anucleate cellular fragments that are released by megakaryocytes and safeguard vascular integrity through a process termed ‘haemostasis’. However, platelets have important roles beyond haemostasis as they contribute to the initiation and coordination of intravascular immune responses. They continuously monitor blood vessel integrity and tightly coordinate vascular trafficking and functions of multiple cell types. In this way platelets act as ‘patrolling officers of the vascular highway’ that help to establish effective immune responses to infections and cancer. Here we discuss the distinct biological features of platelets that allow them to shape immune responses to pathogens and tumour cells, highlighting the parallels between these responses. article_processing_charge: No article_type: original author: - first_name: Florian R full_name: Gärtner, Florian R id: 397A88EE-F248-11E8-B48F-1D18A9856A87 last_name: Gärtner orcid: 0000-0001-6120-3723 - first_name: Steffen full_name: Massberg, Steffen last_name: Massberg citation: ama: 'Gärtner FR, Massberg S. Patrolling the vascular borders: Platelets in immunity to infection and cancer. Nature Reviews Immunology. 2019;19(12):747–760. doi:10.1038/s41577-019-0202-z' apa: 'Gärtner, F. R., & Massberg, S. (2019). Patrolling the vascular borders: Platelets in immunity to infection and cancer. Nature Reviews Immunology. Springer Nature. https://doi.org/10.1038/s41577-019-0202-z' chicago: 'Gärtner, Florian R, and Steffen Massberg. “Patrolling the Vascular Borders: Platelets in Immunity to Infection and Cancer.” Nature Reviews Immunology. Springer Nature, 2019. https://doi.org/10.1038/s41577-019-0202-z.' ieee: 'F. R. Gärtner and S. Massberg, “Patrolling the vascular borders: Platelets in immunity to infection and cancer,” Nature Reviews Immunology, vol. 19, no. 12. Springer Nature, pp. 747–760, 2019.' ista: 'Gärtner FR, Massberg S. 2019. Patrolling the vascular borders: Platelets in immunity to infection and cancer. Nature Reviews Immunology. 19(12), 747–760.' mla: 'Gärtner, Florian R., and Steffen Massberg. “Patrolling the Vascular Borders: Platelets in Immunity to Infection and Cancer.” Nature Reviews Immunology, vol. 19, no. 12, Springer Nature, 2019, pp. 747–760, doi:10.1038/s41577-019-0202-z.' short: F.R. Gärtner, S. Massberg, Nature Reviews Immunology 19 (2019) 747–760. date_created: 2019-08-20T17:24:32Z date_published: 2019-12-01T00:00:00Z date_updated: 2023-08-29T07:16:14Z day: '01' department: - _id: MiSi doi: 10.1038/s41577-019-0202-z ec_funded: 1 external_id: isi: - '000499090600011' pmid: - '31409920' intvolume: ' 19' isi: 1 issue: '12' language: - iso: eng month: '12' oa_version: None page: 747–760 pmid: 1 project: - _id: 260AA4E2-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '747687' name: Mechanical Adaptation of Lamellipodial Actin Networks in Migrating Cells publication: Nature Reviews Immunology publication_identifier: eissn: - 1474-1741 issn: - 1474-1733 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: 'Patrolling the vascular borders: Platelets in immunity to infection and cancer' type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 19 year: '2019' ...