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Vacuolin-1 inhibits autophagy by impairing lysosomal maturation via PIKfyve inhibition

Lysosomal protein degradation via autophagy strictly regulates cellular protein homoeostasis. Herein we performed high-content screening to identify compounds that inhibit autophagy pathways. We obtained 11 hit compounds and performed cluster analysis using cellular morphological information. Vacuolin-1, which induces the formation of giant vacuoles and is a target unknown compound, clustered with the known PIKfyve inhibitor YM201636. We further confirmed that vacuolin-1 is a potent PIKfyve inhibitor, and we finally concluded that PIKfyve inhibitors are novel chemical tools for regulating autophagy.

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Cat.No. Product Name Information
S1219 YM201636 YM201636 is a selective PIKfyve inhibitor with IC50 of 33 nM, less potent to p110α and insensitive to Fabl (yeast orthologue). YM-201636 suppresses the growth of liver cancer via the induction of autophagy.

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PI3K