广谱宏环抑制剂的鼻腔内注射可以防止SARS-CoV-2 Omicron变种的发生
Min Wang1,2,3, Jinyue Yang4, Yahong Tan5
1Beijing Life Science Academy, Beijing, China.
Nature communications
|January 26, 2026
概括
一种新的宏环,6L3-3P11K,通过稳定尖端蛋白质,有效抑制SARS-CoV-2变体. 修改后的版本在小鼠中显示了针对COVID-19的预防和治疗效果.
科学领域:
- 病毒学 病毒学
- 药物发现 药物发现 药物发现
- 结构生物学 结构生物学
背景情况:
- 严重急性呼吸道综合征冠状病毒2 (SARS-CoV-2) 仍然是一个全球健康问题,需要新的广泛抗病毒策略.
- 突变变种的出现强调了对各种病毒菌株有效的对策的需要.
研究的目的:
- 识别和开发具有针对SARS-CoV-2变体的广泛活性的宏环.
- 阐明已识别的的作用机制.
- 在临床前模型中评估改性的预防和治疗潜力.
主要方法:
- 获得并描述了向SARS-CoV-2尖端蛋白的宏环 (6L3-3P11K).
- 利用结构研究来了解突蛋白相互作用.
- 进行结构引导的修改,以提高的稳定性和有效性.
- 在人类ACE2转基因小鼠模型中评估了SARS-CoV-2感染的预防和治疗效果.
主要成果:
- 宏环6L3-3P11K有效抑制了广泛的SARS-CoV-2变种.
- 结构分析显示,该锁定了尖端蛋白三元体,通过与保存的非受体结合动机结合,将其锁定在一个封闭的形状中,从而破坏了ACE2受体的参与.
- 一种经过修改,热稳定和抗素的 (6L3-1F3P11hR) 在鼻内给药后在小鼠模型中显示出预防和治疗效果.
结论:
- 宏环6L3-1F3P11hR是控制和预防SARS-CoV-2感染的有希望的候选药物.
- 这些发现支持宏环的发展,作为广泛的抗病毒剂对抗冠状病毒.
- 对针对冠状病毒感染的基于宏环的治疗方法进行进一步的研究是有必要的.
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