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Focal adhesion disassembly requires clathrin-dependent endocytosis of integrins
Abstract
Cell migration requires the controlled disassembly of focal adhesions, but the underlying mechanisms remain poorly understood. Here, we show that adhesion turnover is mediated through dynamin‐ and clathrin‐dependent endocytosis of activated β1 integrins. Consistent with this, clathrin and the clathrin adaptors AP‐2 and disabled‐2 (DAB2) distribute along with dynamin 2 to adhesion sites prior to adhesion disassembly. Moreover, knockdown of either dynamin 2 or both clathrin adaptors blocks β1 integrin internalization, leading to impaired focal adhesion disassembly and cell migration. Together, these results provide important insight into the mechanisms underlying adhesion disassembly and identify novel components of the disassembly pathway.
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Dab2 tumor suppressor function is attributed to cell adhesion/migration.
“and cell adhesion/migration (Chetrit et al., 2009; Chao and Kunz, 2009; Chetrit et al., 2009; Teckchandani et al., 2009; Xie et al., 2015).”
From Endocytosis and Physiology: Insights from Disabled-2 Deficient Mice (2016) · cites this paper as Chao and Kunz, 2009
The Results (§3.3; page not provided) show that DAB2 helps regulate focal adhesion disassembly and that combined DAB2/AP-2 knockdown inhibits cell migration. The paper does not attribute DAB2’s tumor-suppressor function to its role in adhesion or migration. (LLM, conf=0.86)
Experimental — accuracy not yet measuredStudies in cultured cells suggested a role of Dab2 in endocytic recycling and trafficking of integrins and thus impact cell mobility.
“Studies in cultured cells suggested a role of Dab2 in endocytic recycling and trafficking of integrins and thus impact cell mobility”
From Endocytosis and Physiology: Insights from Disabled-2 Deficient Mice (2016) · cites this paper as Chao and Kunz, 2009
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Disabled‐2 exhibits the properties of a cargo‐selective endocytic clathrin adaptor
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Keyel, P. A., Mishra, S. K., Roth, R., Heuser, J. E., Watkins, S. C., & Traub, L. M. (2006) · Molecular Biology of the Cell · doi:10.1091/mbc.e06-05-0421 · Cited by 134
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Endocytosis and signaling: Cell logistics shape the eukaryotic cell plan
Sigismund, S., Confalonieri, S., Ciliberto, A., Polo, S., Scita, G., & Di Fiore, P. P. (2012) · Physiological Reviews · doi:10.1152/physrev.00005.2011 · Cited by 338
Targeting and transport: How microtubules control focal adhesion dynamics
Stehbens, S., & Wittmann, T. (2012) · Journal of Cell Biology · doi:10.1083/jcb.201206050 · Cited by 244
Endocytosis and Physiology: Insights from Disabled-2 Deficient Mice
Tao, W., Moore, R., Smith, E. R., & Xu, X.-X. (2016) · Frontiers in Cell and Developmental Biology · doi:10.3389/fcell.2016.00129 · Cited by 43
Shafaq-Zadah, M., Dransart, E., Hamitouche, I., Wunder, C., Chambon, V., Valades-Cruz, C. A., Leconte, L., Sarangi, N. K., Robinson, J., Bai, S.-K., et al. (2025) · Nature Communications · doi:10.1038/s41467-025-64523-7 · Cited by 12
“The vesicular fraction likely re fl ects clathrin-dependent uptake, based on: (i) previous fi ndings 17,18,20 ; (ii) vesicle size (120nm ±29 nm, n = 95) 79 ; (iii) the observation of a substantial inhibition of uptake of this conformer (9EG7; Supplementary Fig.”
Metadata
- Authors
- Chao, W.-T., & Kunz, J.
- Venue
- FEBS Letters
- Publisher
- Wiley
- Published
- 2009-03-21
- Volume
- 583
- Issue
- 8
- Pages
- 1337-1343
- ISSN
- 0014-5793
- 1873-3468
- PMC
- PMC2801759
- Cited by
- 200
- References
- 2
- Language
- en
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