Plasma membrane nanodeformations promote actin polymerization through CIP4/CDC42 recruitment and regulate type II IFN signalingopen access
- Authors
- Ledoux, Benjamin; Zanin, Natacha; Yang, Jinsung; Mercier, Vincent; Coster, Charlotte; Dupont-Gillain, Christine; Alsteens, David; Morsomme, Pierre; Renard, Henri-Francois
- Issue Date
- Dec-2023
- Publisher
- AMER ASSOC ADVANCEMENT SCIENCE
- Citation
- SCIENCE ADVANCES, v.9, no.50
- Indexed
- SCIE
SCOPUS
- Journal Title
- SCIENCE ADVANCES
- Volume
- 9
- Number
- 50
- URI
- https://scholarworks.gnu.ac.kr/handle/sw.gnu/69114
- DOI
- 10.1126/sciadv.ade1660
- ISSN
- 2375-2548
2375-2548
- Abstract
- In their environment, cells must cope with mechanical stresses constantly. Among these, nanoscale deformations of plasma membrane induced by substrate nanotopography are now largely accepted as a biophysical stimulus influencing cell behavior and function. However, the mechanotransduction cascades involved and their precise molecular effects on cellular physiology are still poorly understood. Here, using homemade fluorescent nanostructured cell culture surfaces, we explored the role of Bin/Amphiphysin/Rvs (BAR) domain proteins as mechanosensors of plasma membrane geometry. Our data reveal that distinct subsets of BAR proteins bind to plasma membrane deformations in a membrane curvature radius-dependent manner. Furthermore, we show that membrane curvature promotes the formation of dynamic actin structures mediated by the Rho GTPase CDC42, the F-BAR protein CIP4, and the presence of PI(4,5)P-2. In addition, these actin-enriched nanodomains can serve as platforms to regulate receptor signaling as they appear to contain interferon-gamma receptor (IFN gamma-R) and to lead to the partial inhibition of IFN gamma-induced JAK/STAT signaling.
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Collections - College of Medicine > Department of Medicine > Journal Articles
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