Abstract
Mitochondria are bilayer membrane organelles with basic metabolic activity. They are considered hubs for biosynthesis, bioenergy, and signaling functions, coordinating major biological pathways. Mitochondria are coupled to the oxidation of fatty acids and pyruvate through electron transport chains and have historically been considered the primary source of cellular energy. Recent studies have depicted that mitochondria are centers that promote inflammatory responses and play a crucial role in combating pathogenic infections. Moreover, mitochondria provide the basis for tumor synthesis metabolism, control redox and calcium homeostasis, participate in transcriptional regulation, and control cell death. Mitochondria are involved in all steps of tumorigenesis. This review discusses the relationship between mitochondria (including mitochondrial metabolism and mitophagy) and tumors, and the relationship between mtDNA and inflammation, as well as its clinical application in inflammatory diseases. More importantly, the application and targeted treatment strategies provide more opportunities for the development of new anticancer drugs.