Lysosomal activity and autophagy pathways

The autophagy pathway is a conserved cellular process enabling the degradation and recycling of cytoplasmic material within lysosomes, ensuring cellular homeostasis and adaptation to stressors such as starvation[1][2][3]. Lysosomal activity is essential for autophagic flux, which relies on over 60 hydrolases for breakdown of macromolecules. There are several types of autophagy: macroautophagy, chaperone-mediated autophagy, and microautophagy, each differing in how cytoplasmic components are targeted to lysosomes[1][3]. The pathway is tightly regulated by nutrient sensing kinases (notably mTORC1) and is implicated in diverse biological functions and diseases. Specific components of this pathway (rather than the entire system) are therapeutic and research targets, such as mTORC1, LAMP2A, and various autophagy-related proteins[1][2][3]. For structured analyses and data, queries should specify a particular protein, receptor, or enzyme within these pathways (e.g., "LAMP2A," "mTORC1," "ATG5") rather than the holistic system.

Other names

Lysosomal-autophagy systemLysosome-autophagy axisAutophagic lysosome activityLysosomal pathway

mTOR inhibition: induces autophagy Lysosomal acidification: restores autophagic flux in disease settings Autophagy induction or blockade: impacts cellular survival, protein clearance[1]