Mitochondrial metabolic and antioxidant pathways

Mitochondrial metabolic and antioxidant pathways represent the integrated network of biochemical processes responsible for ATP production and the regulation of reactive oxygen species (ROS) within the cell. Key components include the electron transport chain (ETC), the tricarboxylic acid (TCA) cycle, and antioxidant enzymes like manganese superoxide dismutase (MnSOD) and glutathione peroxidase. These pathways are critical for maintaining cellular homeostasis, and their dysfunction is linked to a wide array of conditions, including neurodegenerative diseases, cardiovascular disorders, and cancer. In oncology, drugs may target mitochondrial metabolism to starve tumor cells, while in aging and neurodegeneration, the focus is often on enhancing antioxidant defenses or mitochondrial efficiency. Because these pathways are fundamental to the survival of almost all eukaryotic cells, therapeutic intervention must be carefully calibrated to minimize systemic toxicity and off-target effects.

Other names

Mitochondrial metabolismMitochondrial redox systemsMitochondrial oxidative stress pathwaysMitochondrial bioenergetics

Modulation of the electron transport chain, scavenging of mitochondrial reactive oxygen species, stabilization of mitochondrial membranes, and regulation of metabolic flux through the tricarboxylic acid cycle.