YY1 transcription factor down-regulates expression of CCR5, a major coreceptor for HIV-1

YY1 transcription factor down-regulates expression of CCR5, a major coreceptor for HIV-1
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DOI:
10.1074/jbc.m204980200
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发表时间:
2003-04-11
影响因子:
4.8
通讯作者:
Moriuchi, H
Moriuchi, H
中科院分区:
生物学2区
文献类型:
--
作者:
Moriuchi, M;Moriuchi, H

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CCR 5是人类免疫缺陷病毒1型(HIV-1)的主要辅助受体,其表达受多种转录因子调控。在这里,我们报告说,YY 1转录因子下调CCR 5启动子的活性和YY 1的过表达减少细胞表面CCR 5的表达和感染性的R5-HIV-1。由于YY 1还下调CXCR 4(HIV-1和HIV-1长末端重复序列的另一种主要辅助受体)的启动子活性,因此该转录因子可能在HIV-1疾病的发病机制中发挥关键作用。
Expression of CCR5, a major coreceptor for human immunodeficiency virus type 1 (HIV-1), is regulated by a number of transcription factors. Here we report that the YY1 transcription factor down-regulates CCR5 promoter activity and that overexpression of YY1 reduces cell surface CCR5 expression and infectibility by R5-HIV-1. Because YY1 also down-regulates promoter activities of CXCR4, another major coreceptor for HIV-1 and HIV-1 long terminal repeat, this transcription factor may play a critical role in the pathogenesis of HIV-1 disease.