A chalcone derivative reactivates latent HIV-1 transcription through activating P-TEFb and promoting Tat-SEC interaction on viral promoter.
A chalcone derivative reactivates latent HIV-1 transcription through activating P-TEFb and promoting Tat-SEC interaction on viral promoter.
复制标题
查尔酮衍生物通过激活 P-TEFb 并促进病毒启动子上的 Tat-SEC 相互作用来重新激活潜在的 HIV-1 转录
DOI:
10.1038/s41598-017-10728-w
复制
发表时间:
2017-09-06
影响因子:
4.6
通讯作者:
Xue YH
中科院分区:
文献类型:
--
作者:
Wu J;Ao MT;Shao R;Wang HR;Yu D;Fang MJ;Gao X;Wu Z;Zhou Q;Xue YH
The principal barrier to the eradication of HIV/AIDS is the existence of latent viral reservoirs. One strategy to overcome this barrier is to use latency-reversing agents (LRAs) to reactivate the latent proviruses, which can then be eliminated by effective anti-retroviral therapy. Although a number of LRAs have been found to reactivate latent HIV, they have not been used clinically due to high toxicity and poor efficacy. In this study, we report the identification of a chalcone analogue called Amt-87 that can significantly reactivate the transcription of latent HIV provirses and act synergistically with known LRAs such as prostratin and JQ1 to reverse latency. Amt-87 works by activating the human transcriptional elongation factor P-TEFb, a CDK9-cyclin T1 heterodimer that is part of the super elongation complex (SEC) used by the viral encoded Tat protein to activate HIV transcription. Amt-87 does so by promoting the phosphorylation of CDK9 at the T-loop, liberating P-TEFb from the inactive 7SK snRNP, and inducing the formation of the Tat-SEC complex at the viral promoter. Together, our data reveal chalcones as a promising category of compounds that should be further explored to identify effective LRAs for targeted reversal of HIV latency.
登录
查看更多内容
DOI:
10.1126/science.aaf6517
发表时间:
2016-07-22
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Margolis DM;Garcia JV;Hazuda DJ;Haynes BF
通讯作者:
Haynes BF
影响因子:
16
作者:
He N;Liu M;Hsu J;Xue Y;Chou S;Burlingame A;Krogan NJ;Alber T;Zhou Q
通讯作者:
Zhou Q
DOI:
10.1097/qad.0000000000000289
发表时间:
2014-07-17
期刊:
AIDS (London, England)
影响因子:
--
作者:
Jiang G;Mendes EA;Kaiser P;Sankaran-Walters S;Tang Y;Weber MG;Melcher GP;Thompson GR 3rd;Tanuri A;Pianowski LF;Wong JK;Dandekar S
通讯作者:
Dandekar S
DOI:
10.1073/pnas.1318503111
发表时间:
2014-01-07
影响因子:
11.1
作者:
Lu, Huasong;Li, Zichong;Zhou, Qiang
通讯作者:
Zhou, Qiang
影响因子:
6.7
作者:
通讯作者:
--