Abstract

Background: The intrinsic autophagy-dependence of human tumor cell lines has been demonstrated using CRISPR screens showing that some cell lines respond in similar ways to loss of core autophagy genes as they do to loss of an established essential gene such as proliferating cell nuclear antigen (PCNA). Pharmacologic inhibition of autophagy can be achieved using lysosomotropic agents such as hydroxychloroquine (HCQ) that interfere with fusion of the autophagosome to the lysosome thus preventing completion of the recycling process.

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