维门的重组杆域通过阻断尖端蛋白-ACE2相互作用来减少SARS-CoV-2病毒复制
Fong Wilson Lam1,2, Cameron August Brown1,3, Shannon Elizabeth Ronca1,4
1Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA.
International journal of molecular sciences
|March 13, 2024
概括
一种新型蛋白质,丁 (rhod) 的 rhodDomain,有效地抑制了细胞培养中的SARS-CoV-2复制,并减少了小鼠的肺炎. 这种抗病毒蛋白对未来的流行病准备有很大的希望.
科学领域:
- 病毒学 病毒学
- 药物发现 药物发现 药物发现
- 免疫学 免疫学 免疫学
背景情况:
- 目前的SARS-CoV-2疗法主要针对细胞内病毒复制.
- 对于针对病毒生命周期的不同阶段的新型抗病毒药物有着至关重要的需求,以对抗未来的流行病.
研究的目的:
- 设计和评估一种新型蛋白质,即维门丁 (rhod) 的重组棒域,其在抑制SARS-CoV-2复制的有效性.
- 评估罗德作为抗病毒治疗药物对抗SARS-CoV-2的潜力.
主要方法:
- 重组罗德蛋白在大肠杆菌中得到表达.
- 生物层干涉测量用于确定罗德与SARS-CoV-2尖端蛋白的结合亲和力及其阻断ACE2相互作用的能力.
- 在Vero E6细胞中的斑块测定和在感染SARS-CoV-2-感染K18-hACE小鼠的体内研究进行了评估抗病毒活性和肺炎.
主要成果:
- 罗德对SARS-CoV-2的S1S2尖端蛋白具有很高的亲和力,并有效地阻止了S1S2-ACE2相互作用.
- 每天服用罗德,在48小时后,在1μM以上的度下,在Vero E6细胞中显著降低了SARS-CoV-2的复制.
- 与对照组相比,接受罗德治疗的SARS-CoV-2感染小鼠表现出肺炎的减少.
结论:
- 维门 (rhod) 的重组棒域在体外有效抑制SARS-CoV-2复制,并在体内减轻肺炎.
- 罗德代表了开发针对SARS-CoV-2的新型抗病毒疗法的有希望的候选人.
- 进一步的研究是有必要的,以探索罗德的有效性对各种病毒变体,并优化其治疗应用.
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