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Ca Transportome and the Interorganelle Communication in Hepatocellular Carcinoma

Overview
Journal Cells
Publisher MDPI
Date 2022 Mar 10
PMID 35269437
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Abstract

Hepatocellular carcinoma (HCC) is a type of liver cancer with a poor prognosis for survival given the complications it bears on the patient. Though damages to the liver are acknowledged prodromic factors, the precise molecular aetiology remains ill-defined. However, many genes coding for proteins involved in calcium (Ca) homeostasis emerge as either mutated or deregulated. Ca is a versatile signalling messenger that regulates functions that prime and drive oncogenesis, favouring metabolic reprogramming and gene expression. Ca is present in cell compartments, between which it is trafficked through a network of transporters and exchangers, known as the Ca transportome. The latter regulates and controls Ca dynamics and tonicity. In HCC, the deregulation of the Ca transportome contributes to tumorigenesis, the formation of metastasizing cells, and evasion of cell death. In this review, we reflect on these aspects by summarizing the current knowledge of the Ca transportome and overviewing its composition in the plasma membrane, endoplasmic reticulum, and the mitochondria.

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