The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Traction Dynamics of Filopodia on Compliant Substrates
Abstract
Cells sense the environment's mechanical stiffness to control their own shape, migration, and fate. To better understand stiffness sensing, we constructed a stochastic model of the “motor-clutch” force transmission system, where molecular clutches link F-actin to the substrate and mechanically resist myosin-driven F-actin retrograde flow. The model predicts two distinct regimes: (i) “frictional slippage,” with fast retrograde flow and low traction forces on stiff substrates and (ii) oscillatory “load-and-fail” dynamics, with slower retrograde flow and higher traction forces on soft substrates. We experimentally confirmed these model predictions in embryonic chick forebrain neurons by measuring the nanoscale dynamics of single–growth-cone filopodia. Furthermore, we experimentally observed a model-predicted switch in F-actin dynamics around an elastic modulus of 1 kilopascal. Thus, a motor-clutch system inherently senses and responds to the mechanical stiffness of the local environment.
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Cites
Matrix elasticity directs stem cell lineage specification
Engler, A. J., Sen, S., Sweeney, H. L., & Discher, D. E. (2006) · Cell · doi:10.1016/j.cell.2006.06.044 · Cited by 13,915
Cell Movement Is Guided by the Rigidity of the Substrate
Lo, C.-M., Wang, H.-B., Dembo, M., & Wang, Y.-L. (2000) · Biophysical Journal · doi:10.1016/s0006-3495(00)76279-5 · Cited by 3,289
Effects of substrate stiffness on cell morphology, cytoskeletal structure, and adhesion
Yeung, T., Georges, P. C., Flanagan, L. A., Marg, B., Ortiz, M., Funaki, M., Zahir, N., Ming, W., Weaver, V., & Janmey, P. A. (2005) · Cell Motility and the Cytoskeleton · doi:10.1002/cm.20041 · Cited by 2,325
Cited by
Effects of extracellular matrix viscoelasticity on cellular behaviour
Chaudhuri, O., Cooper-White, J., Janmey, P. A., Mooney, D. J., & Shenoy, V. B. (2020) · Nature · doi:10.1038/s41586-020-2612-2 · Cited by 2,224
Mechanotransduction and extracellular matrix homeostasis
Humphrey, J. D., Dufresne, E. R., & Schwartz, M. A. (2014) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm3896 · Cited by 2,124
Every step of the way: integrins in cancer progression and metastasis
Hamidi, H., & Ivaska, J. (2018) · Nature Reviews Cancer · doi:10.1038/s41568-018-0038-z · Cited by 1,493
Actin Dynamics, Architecture, and Mechanics in Cell Motility
Blanchoin, L., Boujemaa-Paterski, R., Sykes, C., & Plastino, J. (2014) · Physiological Reviews · doi:10.1152/physrev.00018.2013 · Cited by 1,457
Integrins as biomechanical sensors of the microenvironment
Kechagia, J. Z., Ivaska, J., & Roca-Cusachs, P. (2019) · Nature Reviews Molecular Cell Biology · doi:10.1038/s41580-019-0134-2 · Cited by 1,311
Metadata
- Authors
- Chan, C. E., & Odde, D. J.
- Venue
- Science
- Published
- 2008-12-12
- Volume
- 322
- Issue
- 5908
- Pages
- 1687-1691
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2164244652
- Cited by
- 936
- References
- 3
- FWCI
- 10.91
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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