了解长期COVID:SARS-CoV-2袭击宿主细胞核
1Departamento de Genética, Instituto de Investigaciones Biológicas Clemente Estable, Ministerio de Educación y Cultura, Montevideo 11600, Uruguay.
Pathogens (Basel, Switzerland)
|June 28, 2023
概括
严重急性呼吸系统综合征冠状病毒-2 (SARS-CoV-2) 影响多个身体系统,并可能影响宿主细胞核. 进入细胞核的病毒成分可能导致基因组整合和慢性炎症.
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:
- 严重急性呼吸系统综合征冠状病毒-2 (SARS-CoV-2) 流行病已经显示出超出急性呼吸系统疾病的广泛影响,包括长期后续 (长期COVID) 和多系统性参与.
- 目前对SARS-CoV-2复制的理解传统上集中在细胞质过程上,很大程度上排除了核相互作用.
研究的目的:
- 调查SARS-CoV-2成分与宿主细胞核相互作用并可能改变的程度.
- 探索核病毒存在的影响,包括潜在的基因组整合及其后果.
主要方法:
- 对SARS-CoV-2蛋白质和RNA在宿主细胞内的局部化累积证据的分析.
- 审查研究检查病毒蛋白质核孔运输中断的研究.
- 检查SARS-CoV-2序列逆转录和集成到宿主基因组的研究.
主要成果:
- 多个SARS-CoV-2蛋白质 (Spike,Nucleocapsid,Nsp1,Nsp3,ORF3d,ORF6,ORF9a) 和一些病毒RNA可以通过核定位信号或蛋白质穿进入宿主细胞核.
- 有证据表明,SARS-CoV-2序列可以被逆转录并集成到宿主基因组中,形成嵌合基因.
- 这些嵌合蛋白的表达可能导致新抗原的形成,自身免疫和慢性炎症.
结论:
- SARS-CoV-2 积极入侵宿主细胞核,挑战了先前的病毒溶液循环模型.
- 病毒遗传物质的核融合为持续的病毒效应,慢性炎症和感染后的自身免疫反应提供了潜在的机制.
关键词:
在NLS中使用NLS.在 Nsp Nsp 的情况下.核囊酸是核囊酸的一种.在ORF9a中,ORF9a是指ORF9a.这就是SARS-CoV-2病毒.附加蛋白质是辅助蛋白质.核细胞质的穿运输逆转录是指反向转录.sgRNARNA 是一个斯派克斯派克斯派克斯就是一个尖刺.更多相关视频
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