Matches in SemOpenAlex for { <https://semopenalex.org/work/W3127601078> ?p ?o ?g. }
- W3127601078 abstract "SUMMARY As the principal internalization mechanism in mammalian cells, clathrin-mediated endocytosis (CME) is critical for cellular signal transduction, receptor recycling, and membrane homeostasis. Acute depletion of cholesterol disrupts CME, motivating analysis of CME dynamics in the context of disrupted cholesterol synthesis, sterol specificity, mechanisms involved, and relevance to disease pathology. Using genome-edited cell lines, we demonstrate that inhibition of post-squalene cholesterol biosynthesis as observed in inborn errors of cholesterol metabolism, results in striking immobilization of CME and impaired transferrin uptake. Imaging of membrane bending dynamics and CME pit ultrastructure revealed prolonged clathrin pit lifetimes and accumulation of shallow clathrin-coated structures that scaled with diminishing sterol abundance. Moreover, fibroblasts derived from Smith-Lemli-Opitz syndrome subjects displayed reduced CME function. We conclude that sterols lower the energetic costs of membrane bending during pit formation and vesicular scission during CME and suggest reduced CME contributes to cellular phenotypes observed within disorders of cholesterol metabolism." @default.
- W3127601078 created "2021-02-15" @default.
- W3127601078 creator A5003114401 @default.
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- W3127601078 date "2021-01-31" @default.
- W3127601078 modified "2023-10-16" @default.
- W3127601078 title "Sterols lower energetic barriers of membrane bending and fission necessary for efficient clathrin mediated endocytosis" @default.
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