抗SARS-CoV-2小分子向氧化醇结合蛋白 (OSBP) 激活细胞抗病毒天生的免疫力
Bharathiraja Subramaniyan1, Emily C Falcon2, Andrew R Moore1
1Department of Medicine, Section of Pulmonary, Critical Care & Sleep Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104, United States.
ACS infectious diseases
|April 21, 2025
概括
自然化合物OSW-1向氧胆固醇结合蛋白 (OSBP),抑制多种RNA病毒的复制,调节细胞抗病毒免疫力. 这为各种病毒感染提供了潜在的治疗策略.
科学领域:
- 病毒学 病毒学
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
背景情况:
- 人类氧结合蛋白 (OSBP) 是一种脂质载体,对于各种正感单链RNA病毒的复制至关重要.
- 针对OSBP的抗病毒化合物,如天然产品OSW-1,已经显示出希望.
- 以前的研究表明,OSW-1可以降低细胞代的OSBP水平,从而产生抗病毒活性.
研究的目的:
- 评估OSW-1对致病性 (+) ssRNA病毒的体外抗病毒活性.
- 研究OSW-1对细胞抗病毒先天免疫反应的影响.
主要方法:
- 在体外抗病毒试验中使用人类犀利病毒 (HRV1B),猫科冠状病毒腹膜炎病毒 (FIPV),人类冠状病毒229E (HCoV-229E) 和SARS-CoV-2.
- 用OSW-1治疗的人类呼吸道上皮细胞的基因表达变化的分析,重点关注与干扰素相关的基因.
- 评估OSW-1对由聚氨酸-聚乙烯酸 (Poly IC) 诱导的I型和III型干扰素反应的影响.
主要成果:
- 在实验室中,OSW-1对HRV1B,FIPV,HCoV-229E和SARS-CoV-2具有抗病毒活性.
- 治疗OSW-1改变了关键的抗病毒先天免疫媒介的表达,包括IFNB1,IFNL3,CXCL10,ISG15和MX1.
- OSW-1增强了诱导I型和III型干扰素抗病毒反应的作用.
结论:
- OSBP对于 (+) sRNA病毒复制至关重要.
- 在OSW-1中,它对致病性 (+) ssRNA病毒具有广泛的抗病毒活性.
- OSW-1调节细胞抗病毒先天免疫反应,这表明它具有双重的作用机制.
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