Abstract
In this article, we aim to evaluate the effects of photobiomodulation on mitochondria quantity, biogenesis, and mitophagy-associated genes in breast cancer (BC) cells. Both models were irradiated with a low-power infrared laser (880nm, 150 mW) and amber LED (617nm, 1500 mW), alone or simultaneously. We evaluated the mRNA expression of PINK1 and PGC-1α genes, and the mitochondrial number was assessed based on the ratio of mitochondrial DNA/genomic DNA (mtDNA/gDNA). No significant difference was observed in the mtDNA/gDNA ratio comparing the low-power infrared laser (LPIL) and LED-irradiated groups to their control counterparts. Similarly, no difference was observed in the mRNA levels of PINK1 and PGC-1α of the irradiated group with an LPIL and LED alone or in combination. In conclusion, PBM with LPIL and LED did not alter the mtDNA/gDNA ratio nor modulate the mRNA levels of the genes related to mitophagy and biogenesis in BC cells.
Published Version
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