阿尔法赫尔佩斯病毒操纵视网膜酸代谢,以实现最佳的复制
Shengli Ming1,2,3, Shijun Zhang1,2,3, Jiayou Xing1,2,3
1College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan Province, China.
iScience
|July 11, 2024
概括
简单疹病毒 (HSV) 感染通过激活P53和增加DHRS3表达来破坏视网膜酸 (RA) 合成. 恢复RA水平可以增强抗病毒防御,减少病毒生长,提供潜在的治疗策略.
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 来自视网醇 (ROL) 的视网酸 (RA) 对于细胞生长和分化至关重要.
- 已知RA抑制了简单疹病毒 (HSV) 复制,但与alphaherpesvirus代谢的相互作用尚未完全理解.
研究的目的:
- 阐明阿尔法疹病毒 (HSV-1,PRV) 干扰RA代谢的机制.
- 作为一种抗病毒策略,研究调节RA合成和信号的潜力.
主要方法:
- 研究了HSV-1和PRV感染对RA合成 in vitro和 in vivo的影响.
- 分析了P53,DHRS3,DNA损伤反应和基因组修饰在RA病毒抑制中的作用.
- 评估了抵消DHRS3或P53对病毒复制的影响.
- 评估了RA对抗病毒防御的作用,包括脂质流出 (ABCA1,ABCG1).
- 在HSV-1感染的小鼠模型中测试了一种视网膜酸受体 (RAR) 激动剂 (palovarotene) 的治疗疗效.
主要成果:
- 阿尔法疹病毒感染通过激活P53抑制了RA合成,导致DHRS3的表达增加,从而将视网膜甲转化为ROL.
- 这种抑制与病毒诱导的DNA损伤反应,基因素脱乙酶降解和H3/H4过乙化有关.
- 抑制DHRS3或P53恢复了RA合成,并降低了病毒载量.
- 通过ABCA1和ABCG1介导的脂质流动,RA增强了抗病毒免疫力.
- 帕洛瓦罗治疗保护小鼠免受HSV-1感染.
结论:
- 阿尔法疹病毒通过P53-DHRS3轴激活来操纵宿主RA代谢,破坏抗病毒防御.
- 向DHRS3或P53,或通过帕洛瓦罗等RAR激动剂增强RA信号传递,为对抗HSV感染提供了一个有前途的治疗途径.
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