Endocytosis is a fine-tuned mechanism of cellular communication through which cells internalize molecules on the plasma membrane, such as receptors and their bound ligands. Through receptor clustering in endocytic pits, recruitment of active receptors to different endocytic routes and their trafficking towards different fates, endocytosis modulates cell signaling and ultimately leads to a variety of biological responses. Many studies have focused their attention on specialized endocytic mechanisms depending on the nature of the internalizing cargo and cellular context, distinct sets of coat proteins, endocytic adaptors and membrane lipids. Here, we review recent advances in our understanding of the principles underlying endocytic vesicle formation, integrating both biochemical and biophysical factors, with a particular focus on intrinsically disordered regions (IDRs) creating weakly interconnected protein networks assembled through liquid-liquid phase separation (LLPS) and driving membrane bending especially in clathrin-mediated endocytosis (CME). We finally discuss how these properties impinge on receptor fate and signaling.

Biophysics of endocytic vesicle formation: A focus on liquid-liquid phase separation / I. Schiano Lomoriello, S. Sigismund, K.J. Day. - In: CURRENT OPINION IN CELL BIOLOGY. - ISSN 0955-0674. - 75:(2022 Apr), pp. 102068.1-102068.12. [10.1016/j.ceb.2022.02.002]

Biophysics of endocytic vesicle formation: A focus on liquid-liquid phase separation

I. Schiano Lomoriello
Primo
Writing – Original Draft Preparation
;
S. Sigismund
Secondo
Writing – Original Draft Preparation
;
2022

Abstract

Endocytosis is a fine-tuned mechanism of cellular communication through which cells internalize molecules on the plasma membrane, such as receptors and their bound ligands. Through receptor clustering in endocytic pits, recruitment of active receptors to different endocytic routes and their trafficking towards different fates, endocytosis modulates cell signaling and ultimately leads to a variety of biological responses. Many studies have focused their attention on specialized endocytic mechanisms depending on the nature of the internalizing cargo and cellular context, distinct sets of coat proteins, endocytic adaptors and membrane lipids. Here, we review recent advances in our understanding of the principles underlying endocytic vesicle formation, integrating both biochemical and biophysical factors, with a particular focus on intrinsically disordered regions (IDRs) creating weakly interconnected protein networks assembled through liquid-liquid phase separation (LLPS) and driving membrane bending especially in clathrin-mediated endocytosis (CME). We finally discuss how these properties impinge on receptor fate and signaling.
Settore BIO/13 - Biologia Applicata
   Discovering how signalling pathways coordinate intracellular organelle communication.
   MINISTERO DELL'ISTRUZIONE E DEL MERITO
   2017E5L5P3_003
apr-2022
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/955971
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