HIV Transcription Repressor Complex and Compositions and Methods Based Thereon
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    发明申请
    HIV Transcription Repressor Complex and Compositions and Methods Based Thereon 审中-公开
    艾滋病毒转录阻遏物复合物及其组合物和方法

    公开(公告)号:US20090081183A1

    公开(公告)日:2009-03-26

    申请号:US12032043

    申请日:2008-02-15

    IPC分类号: A61K38/16 A61K38/50 A61P31/18

    摘要: The molecular mechanism of YY1/LSF-associated repression of HIV-1 is described herein. More particularly, an HIV transcription repressor complex containing YY1, LSF and HDAC1 is described. The invention is based on our discovery that (1) HDAC1 co-purifies with the LTR-binding YY1-LSF repressor complex; (2) the domain of YY1 that interacts with HDAC1 is required to repress the HIV-1 promoter; (3) the expression of HDAC1 augments repression of the LTR by YY1, and (4) the deacetylase inhibitor trichostatin-A blocks repression mediated by YY1. This novel link between HDAC1 recruitment and inhibition of HIV-1 expression by YY1 and LSF, in the natural context of a viral promoter integrated into chromosomal DNA, supports novel HIV therapies described herein and has significant implications for the long-term treatment of AIDS.

    摘要翻译: 本文描述了YY1 / LSF相关性抑制HIV-1的分子机制。 更具体地,描述了含有YY1,LSF和HDAC1的HIV转录阻遏物复合物。 本发明基于我们的发现:(1)HDAC1与LTR结合的YY1-LSF阻遏物复合物共同纯化; (2)与HDAC1相互作用的YY1结构域需要抑制HIV-1启动子; (3)HDAC1的表达增强了YY1对LTR的抑制,(4)脱乙酰酶抑制剂曲古抑菌素-A阻断YY1介导的抑制。 HDAC1募集与YY1和LSF的HIV-1表达抑制之间的这种新联系,在整合到染色体DNA中的病毒启动子的天然环境中,支持本文所述的新型HIV疗法,对艾滋病的长期治疗具有重要意义。