通过诱导HDAC6,SARS-CoV-2核体蛋白促进自我脱乙烯化,以促进病毒复制
Arpita Mukherjee1, Mahadeb Lo1, Pritam Chandra1
1Division of Virology, ICMR-National Institute of Cholera and Enteric Diseases, P-33, C.I.T. Road, Scheme-XM, Beliaghata, Kolkata, West Bengal, 700010, India.
Virology journal
|August 12, 2024
概括
海斯脱乙酶6 (HDAC6) 通过脱乙病毒N蛋白来促进SARS-CoV-2的复制,从而破坏压力颗粒. 抑制HDAC6可以降低病毒载量,这表明它是抗病毒点.
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 由SARS-CoV-2引起的COVID-19大流行,需要了解宿主病毒相互作用,以找到抗病毒点.
- 识别影响严重疾病的宿主因素对于流行病准备至关重要.
研究的目的:
- 为了研究基因组脱乙酶6 (HDAC6) 在调节SARS-CoV-2感染中的作用.
- 阐明HDAC6影响病毒复制和宿主细胞反应的分子机制.
主要方法:
- 在SARS-CoV-2感染细胞系中分析HDAC6表达.
- 研究HDAC6,SARS-CoV-2核体 (N) 蛋白和G3BP1.1.之间的相互作用.
- 使用shRNA和特定抑制剂 (tubacin) 来降低HDAC6活性.
- 评估HDAC6调制对病毒复制的影响.
主要成果:
- 在SARS-CoV-2感染时,HDAC6的表达增加,由病毒N蛋白调高.
- 低调HDAC6降低了病毒复制,这表明它对其脱乙酶活性有前病毒作用.
- HDAC6与G3BP1和SARS-CoV-2 N蛋白进行相互作用.
- 通过HDAC6介导的N蛋白脱乙基化对于其与G3BP1.1的关联至关重要.
结论:
- 通过促进病毒复制,HDAC6在SARS-CoV-2感染中发挥着重要作用.
- 这项研究揭示了HDAC6通过N蛋白脱乙烯化来破坏细胞质压力颗粒的参与.
- HDAC6成为COVID-19治疗的潜在治疗标.
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