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FUBP3增强了HIV-1转录活性,并调节T细胞中的免疫反应途径

Quentin M R Gibaut^1,2, Chuan Li², Anqi Cheng^1,2

¹The Skaggs Graduate School of Chemical and Biological Sciences, The Scripps Research Institute, Jupiter, FL 33458, USA.

Molecular therapy. Nucleic acids

|April 18, 2025

概括

远向前的元素结合蛋白3 (FUBP3) 通过结合Tat和TAR-RNA来增强HIV-1的转录. 抑制FUBP3会减少病毒转录并影响宿主基因表达,这表明FUBP3是潜在的HIV治疗标.

科学领域:

分子生物学分子生物学
病毒学病毒学
基因规则基因规则

背景情况:

已知远上游元素结合蛋白3 (FUBP3) 通过结合DNA和RNA来调节细胞转录和翻译.
它在人类免疫缺陷病毒1型 (HIV-1) 转录调节中的特定作用以前未被描述.

研究的目的:

研究FUBP3在HIV-1转录调节中的作用.
阐明FUBP3影响HIV-1转录的分子机制.

主要方法:

染色体亲和度净化和质谱测量,以确定FUBP3在艾滋病毒传播者.
转录组分析,染色体免疫沉和生物化学测试用于研究FUBP3-TAR-RNA和FUBP3-Tat相互作用.
抑制FUBP3,以评估其对HIV-1转录和宿主基因表达的影响.

主要成果:

鉴定出FUBP3在积极转录的艾滋病毒促进体中.
通过与Tat和TAR-RNA相互作用,FUBP3增强了HIV-1的转录激活,稳定了TAR-RNA,并增加了Tat水平.
抑制FUBP3降低了HIV-1转录和改变了与T细胞激活和炎症相关的宿主基因表达.

结论:

在HIV-1转录调节和病毒生命周期中,FUBP3起着关键作用.
FUBP3与Tat和TAR-RNA的相互作用对于促进病毒转录至关重要.
FUBP3代表了HIV-1感染的潜在治疗标,并对瘤和炎症途径产生影响.

关键词:

在FUBP3中,FUBP3是FUBP3的.艾滋病病毒艾滋病病毒艾滋病病毒 MT: 寡核酸是一种原核酸.RNA 稳定性 RNA 稳定性在T细胞,T细胞.塔尔塔尔塔尔是什么意思?这就是Tat Tat Tat.治疗方法和应用方法免疫反应的免疫反应.转录转录是一种转录.

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