JOURNAL ARTICLE
REVIEW

Inhibition of BET bromodomains as a therapeutic strategy for cancer drug discovery

Lei-lei Fu, Mao Tian, Xiang Li, Jing-jing Li, Jian Huang, Liang Ouyang, Yonghui Zhang, Bo Liu
Oncotarget 2015 March 20, 6 (8): 5501-16
25849938
As a conserved protein interaction module that recognizes and binds to acetylated lysine, bromodomain (BRD) contains a deep, largely hydrophobic acetyl lysine binding site. Proteins that share the feature of containing two BRDs and an extra-terminal domain belong to BET family, including BRD2, BRD3, BRD4 and BRDT. BET family proteins perform transcription regulatory function under normal conditions, while in cancer, they regulate transcription of several oncogenes, such as c-Myc and Bcl-2. Thus, targeting BET proteins may be a promising strategy, and intense interest of BET proteins has fueled the development of structure-based bromodomain inhibitors in cancer. In this review, we focus on summarizing several small-molecule BET inhibitors and their relevant anti-tumor mechanisms, which would provide a clue for exploiting new targeted BET inhibitors in the future cancer therapy.

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