Sharma 2020 Integr Cancer Ther

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Sharma P, Singh S (2020) Combinatorial effect of DCA and let-7a on triple-negative MDA-MB-231 cells: A metabolic approach of treatment. Integr Cancer Ther 19:1534735420911437.

» PMID: 32248711 Open Access

Sharma P, Singh S (2020) Integr Cancer Ther

Abstract: Dichloroacetate (DCA) is a metabolic modulator that inhibits pyruvate dehydrogenase activity and promotes the influx of pyruvate into the tricarboxylic acid cycle for complete oxidation of glucose. DCA stimulates oxidative phosphorylation (OXPHOS) more than glycolysis by altering the morphology of the mitochondria and supports mitochondrial apoptosis. As a consequence, DCA induces apoptosis in cancer cells and inhibits the proliferation of cancer cells. Recently, the role of miRNAs has been reported in regulating gene expression at the transcriptional level and also in reprogramming energy metabolism. In this article, we indicate that DCA treatment leads to the upregulation of let-7a expression, but DCA-induced cancer cell death is independent of let-7a. We observed that the combined effect of DCA and let-7a induces apoptosis, reduces reactive oxygen species generation and autophagy, and stimulates mitochondrial biogenesis. This was later accompanied by stimulation of OXPHOS in combined treatment and was thus involved in metabolic reprogramming of MDA-MB-231 cells.

Keywords: DCA, OXPHOS, Breast cancer, Metabolic reprogramming, miRNA, Mitogenesis Bioblast editor: Plangger M


Labels: MiParea: Respiration, Pharmacology;toxicology  Pathology: Cancer 

Organism: Human  Tissue;cell: Endothelial;epithelial;mesothelial cell  Preparation: Permeabilized cells 


Coupling state: LEAK, OXPHOS  Pathway: N, S  HRR: Oxygraph-2k 

2020-04