Actomyosin-generated tension on cadherin is similar between dividing and non-dividing epithelial cells in early Xenopus laevis embryos

<p>Epithelia represent a unique situation where polarized cells must maintain sufficiently strong cellcell contacts to guarantee the epithelial integrity indispensable for barrier functions. Nevertheless, epithelia must also keep sufficient plasticity which is crucial during development and mo...

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প্রধান লেখক: Herbomel, G, Hatte, G, Roul, J, Padilla-Parra, S, Tassan, J, Tramier, M
বিন্যাস: Journal article
প্রকাশিত: Springer Nature 2017
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author Herbomel, G
Hatte, G
Roul, J
Padilla-Parra, S
Tassan, J
Tramier, M
author_facet Herbomel, G
Hatte, G
Roul, J
Padilla-Parra, S
Tassan, J
Tramier, M
author_sort Herbomel, G
collection OXFORD
description <p>Epithelia represent a unique situation where polarized cells must maintain sufficiently strong cellcell contacts to guarantee the epithelial integrity indispensable for barrier functions. Nevertheless, epithelia must also keep sufficient plasticity which is crucial during development and morphogenesis. Adherens junctions and mechanical forces produced by the actomyosin cytoskeleton are major players for epithelial integrity maintenance and plasticity regulations. To understand how the epithelium is able to meet such a challenge, it is indispensable to determine how cellular junctions and mechanical forces acting at adherens junctions are regulated. Here, we investigate the tensile forces acting on adherens junctions via cadherin during cell division in the Xenopus embryos epithelium. Using the recently developed E-cadherin FRET tension sensor and a fastFLIM prototype microscope, we were able to measure mechanical forces applied on cadherin at cell-cell junctions. We have shown that the Xenopus epithelium is under tension, approximately 3 pN which remains stable, indicating that tensile forces acting on cadherin at the adherens junction are at equilibrium. Unexpectedly, mechanical tension across cadherin was similar between dividing and non-dividing epithelial cells.</p>
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spelling oxford-uuid:f2f12b62-252c-455d-a577-8066767bf9aa2022-03-27T12:08:01ZActomyosin-generated tension on cadherin is similar between dividing and non-dividing epithelial cells in early Xenopus laevis embryosJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f2f12b62-252c-455d-a577-8066767bf9aaSymplectic Elements at OxfordSpringer Nature2017Herbomel, GHatte, GRoul, JPadilla-Parra, STassan, JTramier, M<p>Epithelia represent a unique situation where polarized cells must maintain sufficiently strong cellcell contacts to guarantee the epithelial integrity indispensable for barrier functions. Nevertheless, epithelia must also keep sufficient plasticity which is crucial during development and morphogenesis. Adherens junctions and mechanical forces produced by the actomyosin cytoskeleton are major players for epithelial integrity maintenance and plasticity regulations. To understand how the epithelium is able to meet such a challenge, it is indispensable to determine how cellular junctions and mechanical forces acting at adherens junctions are regulated. Here, we investigate the tensile forces acting on adherens junctions via cadherin during cell division in the Xenopus embryos epithelium. Using the recently developed E-cadherin FRET tension sensor and a fastFLIM prototype microscope, we were able to measure mechanical forces applied on cadherin at cell-cell junctions. We have shown that the Xenopus epithelium is under tension, approximately 3 pN which remains stable, indicating that tensile forces acting on cadherin at the adherens junction are at equilibrium. Unexpectedly, mechanical tension across cadherin was similar between dividing and non-dividing epithelial cells.</p>
spellingShingle Herbomel, G
Hatte, G
Roul, J
Padilla-Parra, S
Tassan, J
Tramier, M
Actomyosin-generated tension on cadherin is similar between dividing and non-dividing epithelial cells in early Xenopus laevis embryos
title Actomyosin-generated tension on cadherin is similar between dividing and non-dividing epithelial cells in early Xenopus laevis embryos
title_full Actomyosin-generated tension on cadherin is similar between dividing and non-dividing epithelial cells in early Xenopus laevis embryos
title_fullStr Actomyosin-generated tension on cadherin is similar between dividing and non-dividing epithelial cells in early Xenopus laevis embryos
title_full_unstemmed Actomyosin-generated tension on cadherin is similar between dividing and non-dividing epithelial cells in early Xenopus laevis embryos
title_short Actomyosin-generated tension on cadherin is similar between dividing and non-dividing epithelial cells in early Xenopus laevis embryos
title_sort actomyosin generated tension on cadherin is similar between dividing and non dividing epithelial cells in early xenopus laevis embryos
work_keys_str_mv AT herbomelg actomyosingeneratedtensiononcadherinissimilarbetweendividingandnondividingepithelialcellsinearlyxenopuslaevisembryos
AT hatteg actomyosingeneratedtensiononcadherinissimilarbetweendividingandnondividingepithelialcellsinearlyxenopuslaevisembryos
AT roulj actomyosingeneratedtensiononcadherinissimilarbetweendividingandnondividingepithelialcellsinearlyxenopuslaevisembryos
AT padillaparras actomyosingeneratedtensiononcadherinissimilarbetweendividingandnondividingepithelialcellsinearlyxenopuslaevisembryos
AT tassanj actomyosingeneratedtensiononcadherinissimilarbetweendividingandnondividingepithelialcellsinearlyxenopuslaevisembryos
AT tramierm actomyosingeneratedtensiononcadherinissimilarbetweendividingandnondividingepithelialcellsinearlyxenopuslaevisembryos