抵消FOX蛋白在表观遗传上控制了疹病毒的乳液-潜质平衡
Yuhang Xiang1,2,3, Xiyuan Yang1,2,3, Juncheng Zhang1,2,3
1State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Nature communications
|February 2, 2026
概括
宿主转录因子,叉头盒 (FOX) 蛋白质,控制简单疹病毒 (HSV) 延迟. 它们的平衡决定了病毒的持久性和重新激活,为治愈HSV感染提供了新的治疗点.
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 简单疹病毒 (HSV) 通过液性潜伏平衡的持久性阻碍了疾病的治愈.
- 在Lytic感染后,HSV潜伏在神经元中建立,并因压力而重新激活.
- 控制HSV乳液-潜伏平衡的机制尚不清楚.
研究的目的:
- 确定调节HSV复制和延迟的宿主转录因子.
- 调查分叉盒 (FOX) 蛋白在HSV-1流感潜伏平衡中的作用.
- 阐明了FOX蛋白介导的病毒基因调节背后的表观遗传机制.
主要方法:
- 评估了FOX转录因子对HSV-1和其他alphaherpesvirus的活性.
- 在神经元与非神经元细胞中比较FOX基因表达.
- 在神经元培养和体内模型中利用了淘汰和过度表达策略.
- 研究了FOX蛋白与病毒基因组和表观遗传辅因子的相互作用.
主要成果:
- 福克斯转录因子通过差异性调节HSV复制.
- 神经元优先表达抑制FOXK基因,而非神经元/压力细胞表达激活FOX基因.
- 淘汰或激活Foxk1的FOX基因过度表达诱导了HSV从潜伏状态的重新激活.
- 狐蛋白与病毒基因组无特异地结合,并招募表观遗传修饰剂 (CBP/P300,SIN3A/MAX).
结论:
- 病毒流体-潜伏平衡由相对丰富的对抗FOX转录因子来决定.
- 通过表观遗传辅因子招募,FOX蛋白调节病毒染色质的可访问性.
- 准FOX蛋白及其相关的表观遗传机制为控制HSV持久性提供了一种新的策略.
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