Target intelligence / Profile preview

Autophagosome-Lysosome Fusion Process

Molecular classification
Cellular process, Protein-protein interaction, Membrane fusion
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Overview

The autophagosome–lysosome fusion process is a critical step in macroautophagy, a conserved catabolic pathway in eukaryotic cells. During this process, cytoplasmic material is first sequestered into double-membrane vesicles called autophagosomes. These autophagosomes then fuse with lysosomes to form autolysosomes, where the cargo is degraded by lysosomal enzymes. This fusion event ensures the breakdown and recycling of cellular components, maintaining cellular homeostasis. Key molecular players include SNARE proteins (Stx17, SNAP29, VAMP8), Rab7, HOPS complex, ATG14, and INPP5E. Defects in this process are linked to various diseases, including neurodegenerative disorders and cancer.

Other names
Autophagosome-lysosome fusionAutophagy completionAutolysosome formation
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Mechanism of action

Inhibition of autophagosome-lysosome fusion

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Biological functions

Degradation of cellular componentsRecycling of cellular componentsCellular homeostasisAutophagyImmune response regulation
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Disease associations

Neurodegenerative disordersCancerInfectious diseasesInflammatory diseases
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Safety considerations

Off-target effects of autophagy inhibitorsPotential disruption of cellular homeostasis
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Interacting drugs

Pharmacological inhibitors of autophagy

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