| Literature DB >> 30057145 |
Masao Nakagawa1, Arthur L Shaffer2, Michele Ceribelli3, Meili Zhang2, George Wright4, Da Wei Huang2, Wenming Xiao5, John Powell6, Michael N Petrus2, Yibin Yang7, James D Phelan2, Holger Kohlhammer2, Sigrid P Dubois2, Hee Min Yoo2, Emmanuel Bachy2, Daniel E Webster2, Yandan Yang2, Weihong Xu2, Xin Yu2, Hong Zhao2, Bonita R Bryant2, Joji Shimono8, Takashi Ishio8, Michiyuki Maeda9, Patrick L Green10, Thomas A Waldmann11, Louis M Staudt12.
Abstract
Adult T cell leukemia/lymphoma (ATLL) is a frequently incurable disease associated with the human lymphotropic virus type I (HTLV-I). RNAi screening of ATLL lines revealed that their proliferation depends on BATF3 and IRF4, which cooperatively drive ATLL-specific gene expression. HBZ, the only HTLV-I encoded transcription factor that is expressed in all ATLL cases, binds to an ATLL-specific BATF3 super-enhancer and thereby regulates the expression of BATF3 and its downstream targets, including MYC. Inhibitors of bromodomain-and-extra-terminal-domain (BET) chromatin proteins collapsed the transcriptional network directed by HBZ and BATF3, and were consequently toxic for ATLL cell lines, patient samples, and xenografts. Our study demonstrates that the HTLV-I oncogenic retrovirus exploits a regulatory module that can be attacked therapeutically with BET inhibitors. Published by Elsevier Inc.Entities:
Keywords: ATLL; BATF3; BET inhibitor; HBZ; functional genomics
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Year: 2018 PMID: 30057145 PMCID: PMC8078141 DOI: 10.1016/j.ccell.2018.06.014
Source DB: PubMed Journal: Cancer Cell ISSN: 1535-6108 Impact factor: 31.743