胆固醇25-基酶通过其酶产物25-基胆固醇抑制鸟类reovirus复制
Yuyang Wang1,2, Wei Zuo1, Yangyang Zhang1
1Jiangsu Co-Innovation Center for Prevention and Control of Animal Infectious Disease and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, China.
Frontiers in microbiology
|July 17, 2023
概括
胆固醇25-基酶 (CH25H) 通过产生25-基胆固醇 (25HC) 来抑制鸟类复原病毒 (ARV) 的复制. 这种宿主因子准病毒的进入和合成体的形成,为禽类抗ARV的新抗病毒疗法提供了潜力.
科学领域:
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
- 生物化学 生物化学
背景情况:
- 禽类再病毒 (ARV) 在全球的家禽行业造成了重大经济损失.
- 抗病毒复制取决于脂质内的细胞胆固醇.
- 胆固醇25-基酶 (CH25H) 和其产物25-基胆固醇 (25HC) 对包裹病毒表现出抗病毒活性,但它们在非包裹ARV复制中的作用尚不清楚.
研究的目的:
- 为了研究CH25H (chCH25H) 在ARV复制中的作用.
- 阐明CH25H对ARV产生抗病毒作用的机制.
主要方法:
- 对ARV感染细胞中chCH25H表达的分析.
- 对chCH25H的过度表达和敲击测定.
- 用25HC和一种催化无活性的chCH25H突变体进行治疗.
- 评估ARV复制,病毒的进入,脱涂,和syncytium的形成.
主要成果:
- 在ARV感染的早期,chCH25H的表达上调.
- 过度表达chCH25H和治疗25HC显著抑制了ARV复制.
- CH25H的抗病毒活性取决于其基酶功能和25HC的产生.
- 25HC通过延迟脱涂来抑制ARV的进入,而CH25H阻断ARVp10诱导的细胞融合.
结论:
- CH25H作为对抗ARV的宿主限制因子.
- 抗病毒机制涉及25HC的生产,针对病毒的入口和syncytium的形成.
- 这些发现表明CH25H是开发针对ARV的广泛抗病毒疗法的潜在目标.
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