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Full Description
Calcium entry pathways in non-excitable cells presents a concise synthesis of thoughtfully selected topics covering from the different calcium entry mechanisms in non-excitable cells to the cellular microdomains and organelles regulating the calcium entry process. Particular attention is given to the fascinating group of ion channels involved in different calcium entry pathways as well as the emerging role of these channels in human disease. Calcium entry is an essential mechanism for cellular function in non-excitable cells. In general, two main calcium entry pathways exist in non-excitable cells: one pathway, named store-operated calcium entry (SOCE) requires store depletion and the second pathway is regulated by receptor occupation, but independently on calcium store depletion. The search for the molecular components of calcium entry has identified the stromal interaction molecule 1 (STIM1), as the calcium sensor of the intracellular calcium stores, and Orai as well as TRP channelsas the calcium-permeable channels located in the plasma membrane. The location, interactions and function of these channels are finely regulated by a number of scaffolding proteins, membrane microdomains and cellular organelles that fine tune the amount of calcium entering the cell. Cutting-edge and user-friendly, this volume presents relevant background information, critical analysis of the current observations and directions for future research. The book is intended for basic scientists specializing in cellular biology or ion transport, as well as for biomedical researchers.
Contents
Historical overview of store-operated Ca2+ entry.- The STIM1- Orai interaction.- The
TRPCs, Orais and STIMs in ER/PM junctions.- The TRP-Na-Ca2+
exchanger coupling.- Role of TRPC channels in store-operated calcium entry.- Phospholipase
A2 as a molecular determinant of store-operated calcium entry.- Extracellular
calcium has multiple targets to control cell proliferation.- Regulation of
platelet function by Orai, STIM and TRP.- On the roles of the Transient
Receptor Potential Canonical 3 (TRPC3) channel in endothelium and macrophages:
implications in atherosclerosis.- Second messenger-operated calcium entry
through TRPC6.- Transient Receptor Potential Canonical 7 (TRPC7), a Calcium
(Ca2+) Permeable Nonselective Cation Channel.- Calcium entry through
thermosensory channels.- Calcium signalling through ligand-gated ion channels
such as P2X1 receptors in the platelet and other non-excitable cells.- The
calcium entry-calcium refilling coupling.- Microdomains associated to lipid
rafts.- Role of scaffolding proteins in the regulation of TRPC-dependent
calcium entry.- Modulation of calcium entry by mitochondria.- Modulation of
calcium entry by the endo-lysosomal system.- Remodeling of
calcium entry pathways in cancer.
