Mitophagy is the selective autophagic degradation of mitochondria and functions as a mitochondrial quality-control pathway that removes damaged, depolarized, excess, or developmentally programmed mitochondria. The pathway links mitochondrial damage recognition, autophagosome recruitment, lysosomal delivery, and mitochondrial turnover to phenotypes such as mitochondrial homeostasis, oxidative-stress control, metabolic remodeling, differentiation, and neurodegeneration-related mitochondrial fidelity. The best-characterized damage-induced pathway is the PINK1-Parkin axis. Parkin is recruited selectively to impaired mitochondria and promotes their autophagic elimination, while mitochondrial depolarization stabilizes PINK1 on damaged mitochondria, recruits Parkin, and activates Parkin-dependent mitophagy. PINK1 also phosphorylates ubiquitin to activate Parkin E3 ubiquitin ligase activity, and PINK1-driven ubiquitin phosphorylation creates a feed-forward signal for recruiting autophagy machi
Mitophagy Pathway
Mitophagy assay is an experimental method used to assess the levels of mitophagy in cells. Technologies such as fluorescent probes, protein markers, or electron microscopy are usually used to monitor the fusion of autophagic vacuoles and mitochondria in cells. Mitophagy, also known as the progressive degradation of mitochondria, is an important process for maintaining mitochondrial quality and function within cells. This research helps understand the role of mitophagy in cell survival, stress response, and a variety of diseases, such as neurodegenerative diseases and tumors.
Related Experimental Schemes
