Apr 23, 2015

Diverse involvement of EZH2 in cancer epigenetics

American Journal of Translational Research
Pamela VölkelPierre-Olivier Angrand

Abstract

EZH2 is the catalytic subunit of Polycomb Repressor Complex 2 (PRC2) which catalyzes methylation of histone H3 at lysine 27 (H3K27me) and mediates gene silencing of target genes via local chromatin reorganization. Numerous evidences show that EZH2 plays a critical role in cancer initiation, progression and metastasis, as well as in cancer stem cell biology. Indeed, EZH2 dysregulation alters gene expression programs in various cancer types. The molecular mechanisms responsible for EZH2 alteration appear to be diverse and depending on the type of cancer. Furthermore, accumulating evidences indicate that EZH2 could also act as a PRC2-independent transcriptional activator in cancer. In this review, we address the current understanding of the oncogenic role of EZH2, including the mechanisms of EZH2 dysregulation in cancer and progresses in therapeutic approaches targeting EZH2.

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Mentioned in this Paper

Transcription Repressor/Corepressor
Protein Methylation
Candidate Disease Gene
Neoplasms
Transcription Initiation
Gene Expression
Lysine
Study of Epigenetics
EZH2 protein, human
Repressor Proteins

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