期刊
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
卷 10, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fcell.2022.988014
关键词
ER-mitochondria contact sites; lipids; lipid transfer protein; Ca2+ signaling; cancer
资金
- C1 KU Leuven Consortium InterAction
- Flemish Research Foundation [C14/21/095]
- EOS Meta Niche consortium [G0A3320N, G094922N]
- iBOF/21/053 ATLANTIS consortium [40007532]
Membrane contact sites (MCS) between organelles are crucial for the structural integrity and homeostasis of eukaryotic cells, facilitating intracellular signaling and exchange of ions, metabolites, and lipids. In particular, ER-mitochondria contacts (EMCS) play a key role in regulating lipid composition, physiological functions, and lipid-mediated signaling pathways, with disruptions potentially favoring key traits of cancer cells.
Membrane contact sites (MCS) between organelles of eukaryotic cells provide structural integrity and promote organelle homeostasis by facilitating intracellular signaling, exchange of ions, metabolites and lipids and membrane dynamics. Cataloguing MCS revolutionized our understanding of the structural organization of a eukaryotic cell, but the functional role of MSCs and their role in complex diseases, such as cancer, are only gradually emerging. In particular, the endoplasmic reticulum (ER)-mitochondria contacts (EMCS) are key effectors of non-vesicular lipid trafficking, thereby regulating the lipid composition of cellular membranes and organelles, their physiological functions and lipid-mediated signaling pathways both in physiological and diseased conditions. In this short review, we discuss key aspects of the functional complexity of EMCS in mammalian cells, with particular emphasis on their role as central hubs for lipid transport between these organelles and how perturbations of these pathways may favor key traits of cancer cells.
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