Journal
CELL DEATH AND DIFFERENTIATION
Volume 15, Issue 12, Pages 1824-1837Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/cdd.2008.115
Keywords
cell death; Fas; glycosphingolipid; signal transduction
Categories
Funding
- Centre National de la Recherche Scientifique (CNRS)
- Ligue nationale contre le cancer (LNCC)
- Association pour la Recherche contre le Cancer (ARC)
- Emerald Foundation
- Agence Nationale de la Recherche (ANR)
- Susan G Komen Breast Cancer Foundation
Ask authors/readers for more resources
Selective compartmentalization and internalization have been shown as a means for regulating specific signals of cell surface receptors to correspond to cellular requirements and conditions. Here, we present a conserved extracellular glycosphingolipid-binding motif of Fas as one of the regulatory elements in the selection of its internalization route and consequently the signals transmitted upon ligand binding. This motif is required for clathrin-mediated internalization of Fas, which allows the transduction of its cell death signal. The loss of function of the motif drives the activated receptor to an alternative internalization route that is independent of clathrin and cholesterol-dependent rafts but dependent on ezrin, and thereby extinguishing its cell death signal while promoting its non-death functions. Through biochemical, biophysical, and genetic approaches, we present a protein/lipid-based mechanism as a key to the versatility of the signal transduction by the multifunctional Fas receptor-ligand system.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available