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在NRP1促销器中的DNA G-四重复 促进SARS-CoV-2感染
Pihai Gong1, Rongxin Zhang1, Ke Xiao1
1State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing 211189, China.
International journal of molecular sciences
|April 27, 2024
概括
在NRP1促进体中的G-四重体 (G4s) 促进SARS-CoV-2宿主因子表达,增强病毒进入. 针对这些G4结构可能会提供新的COVID-19治疗方法.
科学领域:
- 分子生物学分子生物学
- 病毒学 病毒学
- 基因组学就是基因组学.
背景情况:
- 严重急性呼吸道综合征冠状病毒2 (SARS-CoV-2) 感染构成了全球健康威胁.
- 宿主因素对SARS-CoV-2感染至关重要,但它们的调节机制尚未完全理解.
- G四重复体 (G4s) 是非正规的DNA结构,在基因表达中起着调节作用.
研究的目的:
- 研究SARS-CoV-2宿主因子在促进体区域中的G四复合体 (G4s) 的作用.
- 阐明G4s影响宿主因子NRP1.1表达的机制.
- 探索G4结构作为COVID-19治疗点的潜力.
主要方法:
- 生物信息分析以确定宿主因素促进区域的G4结构.
- 生物化学和生物分析以确认G4的存在和功能.
- 来自受感染的人类支气管上皮细胞 (HBEC) 的单细胞RNA测序数据的分析.
主要成果:
- 在SARS-CoV-2宿主因子NRP1.1的促进子区域中确定了G4结构.
- 在NRP1促进体中的G4s显著增加NRP1的表达,促进SARS-CoV-2的进入.
- 具有高NRP1水平的状细胞是SARS-CoV-2的首选目标;E2F1与这些G4s结合.
结论:
- 在NRP1促进体中的G-四复合体在SARS-CoV-2感染期间在调节宿主因子表达方面发挥着关键作用.
- 这些发现揭示了涉及G4s和NRP1在SARS-CoV-2病变发生过程中的新型机制.
- 针对G4结构提出了预防和治疗COVID-19的潜在治疗策略.
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