Stability of adhesion clusters under constant force

We solve the stochastic equations for a cluster of parallel bonds with shared constant loading, rebinding, and the completely dissociated state as an absorbing boundary. In the small force regime, cluster lifetime grows only logarithmically with bond number for weak rebinding, but exponentially for...

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Hauptverfasser: Erdmann, Thorsten (VerfasserIn) , Schwarz, Ulrich S. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 10 March 2004
In: Physical review letters
Year: 2004, Jahrgang: 92, Heft: 10
ISSN:1079-7114
DOI:10.1103/PhysRevLett.92.108102
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevLett.92.108102
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.92.108102
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Verfasserangaben:T. Erdmann and U.S. Schwarz
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Zusammenfassung:We solve the stochastic equations for a cluster of parallel bonds with shared constant loading, rebinding, and the completely dissociated state as an absorbing boundary. In the small force regime, cluster lifetime grows only logarithmically with bond number for weak rebinding, but exponentially for strong rebinding. Therefore rebinding is essential to ensure physiological lifetimes. The number of bonds decays exponentially with time for most cases, but in the intermediate force regime a small increase in loading can lead to much faster decay. This effect might be used by cell-matrix adhesions to induce signaling events through cytoskeletal loading.
Beschreibung:Gesehen am 15.12.2017
Beschreibung:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.92.108102