Syndecan-4 tunes cell mechanics by activating the kindlin-integrin-RhoA pathway

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Chronopoulos , A , Thorpe , S D , Cortes , E , Lachowski , D , Rice , A J , Mykuliak , V V , Rog , T , Lee , D A , Hytönen , V P & Hernandez , A E D R 2020 , ' Syndecan-4 tunes cell mechanics by activating the kindlin-integrin-RhoA pathway ' , Nature Materials , vol. 19 , no. 6 , pp. 669-678+ .

Titel: Syndecan-4 tunes cell mechanics by activating the kindlin-integrin-RhoA pathway
Författare: Chronopoulos, Antonios; Thorpe, Stephen D.; Cortes, Ernesto; Lachowski, Dariusz; Rice, Alistair J.; Mykuliak, Vasyl V.; Rog, Tomasz; Lee, David A.; Hytönen, Vesa P.; Hernandez, Armando E. del Rio
Upphovmannens organisation: Department of Physics
Datum: 2020-06
Språk: eng
Sidantal: 15
Tillhör serie: Nature Materials
ISSN: 1476-1122
Permanenta länken (URI):
Abstrakt: A mechanism of cell response to localized tension shows that syndecan-4 synergizes with EGFR to elicit a mechanosignalling cascade that leads to adaptive cell stiffening through PI3K/kindlin-2 mediated integrin activation. Extensive research over the past decades has identified integrins to be the primary transmembrane receptors that enable cells to respond to external mechanical cues. We reveal here a mechanism whereby syndecan-4 tunes cell mechanics in response to localized tension via a coordinated mechanochemical signalling response that involves activation of two other receptors: epidermal growth factor receptor and beta 1 integrin. Tension on syndecan-4 induces cell-wide activation of the kindlin-2/beta 1 integrin/RhoA axis in a PI3K-dependent manner. Furthermore, syndecan-4-mediated tension at the cell-extracellular matrix interface is required for yes-associated protein activation. Extracellular tension on syndecan-4 triggers a conformational change in the cytoplasmic domain, the variable region of which is indispensable for the mechanical adaptation to force, facilitating the assembly of a syndecan-4/alpha-actinin/F-actin molecular scaffold at the bead adhesion. This mechanotransduction pathway for syndecan-4 should have immediate implications for the broader field of mechanobiology.
1182 Biochemistry, cell and molecular biology
Referentgranskad: Ja
Licens: unspecified
Användningsbegränsning: openAccess
Parallelpublicerad version: acceptedVersion

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