How Mitochondria Selectively Remove Damaged Mitochondrial DNA

Source https://www.fightaging.org/archives/2022/11/how-mitochondria-selectively-remove-damaged-mitochondrial-dna/

Mitochondrial DNA becomes damaged more readily than nuclear DNA, as the systems of DNA repair in mitochondria are less effective, and the DNA structures are less well protected. Some forms of mitochondrial DNA damage can cause mitochondria to become dysfunction while also replicating more efficiently than their peers, leading to pathological cells overtaken by pathological mitochondria that cause damage to their surroundings. As an opposing force, there appear to be ways in which mitochondria can selectively eliminate damaged DNA under some circumstances. Can these mechanisms be meaningfully enhanced to reduce mitochondrial DNA damage an…

Source https://www.fightaging.org/archives/2022/11/how-mitochondria-selectively-remove-damaged-mitochondrial-dna/

Mitochondrial DNA becomes damaged more readily than nuclear DNA, as the systems of DNA repair in mitochondria are less effective, and the DNA structures are less well protected. Some forms of mitochondrial DNA damage can cause mitochondria to become dysfunction while also replicating more efficiently than their peers, leading to pathological cells overtaken by pathological mitochondria that cause damage to their surroundings. As an opposing force, there appear to be ways in which mitochondria can selectively eliminate damaged DNA under some circumstances. Can these mechanisms be meaningfully enhanced to reduce mitochondrial DNA damage an…

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