Membrane curvature governs the distribution of Piezo1 in live cells
| Autor: | Shilong Yang, Xinwen Miao, Steven Arnold, Boxuan Li, Alan T. Ly, Huan Wang, Matthew Wang, Xiangfu Guo, Medha M. Pathak, Wenting Zhao, Charles D. Cox, Zheng Shi |
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| Rok vydání: | 2023 |
| Předmět: |
Mammals
Multidisciplinary 1.1 Normal biological development and functioning Cell Membrane Biophysics General Physics and Astronomy General Chemistry General Biochemistry Genetics and Molecular Biology Cell Movement Underpinning research Animals Calcium Pseudopodia Generic health relevance Cytokinesis |
| Zdroj: | Nature communications, vol 13, iss 1 |
| ISSN: | 0006-3495 |
| Popis: | Piezo1 is abona fidemechanosensitive ion channel ubiquitously expressed in mammalian cells. The distribution of Piezo1 within a cell is essential for various biological processes including cytokinesis, cell migration, and wound healing. However, the underlying principles that guide the subcellular distribution of Piezo1 remain largely unexplored. Here, we demonstrate that membrane curvature serves as a key regulator of the spatial distribution of Piezo1 in the plasma membrane of living cells. Piezo1 depletes from highly curved membrane protrusions such as filopodia and enriches to nanoscale membrane invaginations. Quantification of the curvaturedependent sorting of Piezo1 directly reveals thein situnano-geometry of the Piezo1-membrane complex. Piezo1 density on filopodia increases upon activation, independent of Ca2+, suggesting flattening of the channel upon opening. Consequently, the expression of Piezo1 inhibits filopodia formation, an effect that diminishes with channel activation. |
| Databáze: | OpenAIRE |
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