Mitochondrial autophagy pathway

The **mitochondrial autophagy pathway**, also known as **mitophagy**, is a selective form of autophagy responsible for the degradation and recycling of damaged or dysfunctional mitochondria within cells. This process is essential for maintaining mitochondrial quality and overall cellular health. During mitophagy, defective mitochondria are recognized and engulfed by double-membraned vesicles called autophagosomes, which then fuse with lysosomes where the contents are degraded. Key molecular regulators include PINK1 and Parkin in mammals, which mediate the recognition and targeting of damaged mitochondria for removal. The pathway plays a critical role in protecting cells from oxidative stress, regulating cell death, supporting energy homeostasis, and preventing the accumulation of dysfunctional organelles that can contribute to diseases such as neurodegeneration, cardiovascular conditions, cancer, and metabolic disorders[1][2][3]. Note on target status: The "mitochondrial autophagy pathway" refers to a **cellular process** rather than a single molecule or protein target such as an enzyme or receptor. Therefore it is not considered a direct therapeutic target itself but rather encompasses multiple molecular targets involved in its regulation (such as PINK1 or Parkin). For structured drug discovery purposes or biomarker identification, it would be more appropriate to specify individual proteins within this pathway rather than the entire process[2][3].

Other names

Mitophagy pathwayMitochondrial autophagyMitophagy