Chloroquine anticancer activity is mediated by autophagy-independent effects on the tumor vasculature
Hannelore Maes1, Anna Kuchnio2, Peter Carmeliet2
1Department Cellular and Molecular Medicine; Laboratory of Cell Death and Therapy ; KU Leuven, Leuven, Belgium.
Abstract:
Chloroquine is used clinically as an autophagy blocker to potentiate anticancer treatments. However, whether chloroquine acts solely through autophagy-dependent and cancer cell autonomous mechanisms has remained elusive. In a recent study we found that chloroquine reduced intratumoral hypoxia and metastasis, while improving chemotherapy response, largely through an autophagy-independent, NOTCH1-reliant mechanism of tumor vessel normalization.
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