Chloroquine (CQ) can induce cell death in a subset of cancer cell lines, and some melanoma cell lines are quite susceptible. Although it is well known that CQ impairs lysosomal function and can serve as an autophagy inhibitor, the molecular target of CQ and the subsequent cascade of events that lead to cell death are not fully understood. Recent evidence indicates that in melanoma cell lines, CQ induces apoptosis by preventing degradation of the pro-apoptotic BH3-only protein p53-upregulated modulator of apoptosis. This finding adds to the unfolding story of CQ's mechanism of action as a cancer therapeutic agent. © 2013 The Society for Investigative Dermatology.
CITATION STYLE
Amaravadi, R. K. (2013). PUMA: A puzzle piece in chloroquine’s antimelanoma activity. Journal of Investigative Dermatology. Nature Publishing Group. https://doi.org/10.1038/jid.2013.135
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