The role of the Na+/Ca2+-exchanger (NCX) in cancer-associated fibroblasts.
Biol Chem
; 404(4): 325-337, 2023 03 28.
Article
em En
| MEDLINE
| ID: mdl-36594183
ABSTRACT
Cancer is characterized by uncontrolled growth, invasion, and metastasis. In addition to solid cancer cells, cancer-associated fibroblasts (CAFs) play important roles in cancer pathophysiology. They arise from "healthy" cells but get manipulated by solid cancer cells to supply them and develop a tumor microenvironment (TME) that protects the cancer cells from the immune defense. A wide variety of cell types can differentiate into CAFs, including fibroblasts, endothelial cells, and epithelial cells. Precise Ca2+ regulation is essential for each cell including CAFs. The electrogenic Na+/Ca2+ exchanger (NCX) is one of the ubiquitously expressed regulatory Ca2+ transport proteins that rapidly responds to changes of the intracellular ion concentrations. Its transport function is also influenced by the membrane potential and thereby indirectly by the activity of ion channels. NCX transports Ca2+ out of the cell (forward mode) or allows its influx (reverse mode), always in exchange for 3 Na+ ions that are moved into the opposite direction. In this review, we discuss the functional roles NCX has in CAFs and how these depend on the properties of the TME. NCX activity modifies migration and leads to a reduced proliferation and apoptosis. The effect of the NCX in fibrosis is still largely unknown.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fibroblastos Associados a Câncer
/
Neoplasias
Tipo de estudo:
Risk_factors_studies
Idioma:
En
Revista:
Biol Chem
Assunto da revista:
BIOQUIMICA
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Alemanha