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Epigenetic Regulation of Epithelial-Mesenchymal Transition by Hypoxia in Cancer: Targets and Therapy

[ Vol. 21 , Issue. 10 ]

Author(s):

Jian -Qiu Wang and Kou -Juey Wu   Pages 1272 - 1278 ( 7 )

Abstract:


Intratumoral hypoxia followed by stabilization/activation of hypoxia-inducible factor 1 (HIF-1) and its downstream transcriptional factors, is one of the most important mechanisms inducing epithelial-mesenchymal transition (EMT), which has been widely accepted as a crucial step to generate early stage of tumor metastasis. Accumulating evidence suggests that epigenetic mechanisms play important roles in hypoxia-induced EMT and metastasis. These epigenetic regulations are mediated by various players including chromatin modifiers, transcriptional co-regulators, microRNAs, etc. In this review, we discuss how his tone-modifying enzymes and transcriptional co-regulators regulate EMT under hypoxic conditions. Developed or potential anticancer agents targeting epigenetic molecules regulating hypoxia-induced EMT are also discussed.

Keywords:

Epigenetic regulation, hypoxia, epithelial-mesenchymal transition, HIF-1α, chromatin modifier, co-regulator, target.

Affiliation:

Research Center for Tumor Medical Science, Graduate Institute of Cancer Biology, China Medical University, Taichung 40402, Taiwan.



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