Mitochondrial hOGG1-2a overexpression sensitizes HeLaS3 cells to oxidative stress, accompanied by mitochondrial dysfunction and reduced mtDNA integrity.
Mitochondria are essential organelles responsible for cellular ATP production and contain their own mitochondrial DNA (mtDNA), which encodes key components of oxidative phosphorylation. Because mitochondria continuously generate reactive oxygen species (ROS), mtDNA is particularly susceptible to oxidative damage. Altho...