Journal
FRONTIERS IN MOLECULAR BIOSCIENCES
Volume 8, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fmolb.2021.671908
Keywords
atherosclerosis; cancer; diabetes; DNA damage; mitochondria; reactive oxygen species; reactive nitrogen species
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Funding
- Russian Science Foundation [20-15-00337]
- Russian Science Foundation [20-15-00337] Funding Source: Russian Science Foundation
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Mitochondrial dysfunction is closely associated with various human pathologies, with ROS and RNS playing a critical role in causing protein and mtDNA damage and leading to the development of diseases. Recent studies have identified numerous mtDNA mutations linked to different human pathologies, each having distinct effects in disease progression.
Mitochondrial dysfunction is known to be associated with a wide range of human pathologies, such as cancer, metabolic, and cardiovascular diseases. One of the possible ways of mitochondrial involvement in the cellular damage is excessive production of reactive oxygen and nitrogen species (ROS and RNS) that cannot be effectively neutralized by existing antioxidant systems. In mitochondria, ROS and RNS can contribute to protein and mitochondrial DNA (mtDNA) damage causing failure of enzymatic chains and mutations that can impair mitochondrial function. These processes further lead to abnormal cell signaling, premature cell senescence, initiation of inflammation, and apoptosis. Recent studies have identified numerous mtDNA mutations associated with different human pathologies. Some of them result in imbalanced oxidative phosphorylation, while others affect mitochondrial protein synthesis. In this review, we discuss the role of mtDNA mutations in cancer, diabetes, cardiovascular diseases, and atherosclerosis. We provide a list of currently described mtDNA mutations associated with each pathology and discuss the possible future perspective of the research.
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