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查确定了氧化-4-碳胺KB-2777在体外表现出抗冠状病毒活性

Bud Jung¹, Woonsung Na², Minjoo Yeom³

¹Department of Pharmacy, College of Pharmacy, Korea University, Sejong 30019, Republic of Korea.

|November 27, 2025

概括

新型抗病毒KB-2777对包括SARS-CoV-2变种在内的α和β冠状病毒具有广泛的体外活性. 当与现有的直接作用抗病毒药物 (DAA) 结合时,它显示出有前途的协同效应添加剂.

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:

直接作用抗病毒药物 (DAA) 呈现出血统特异性的活性,容易迅速发展耐药性.
氧-4-碳胺化合物KB-2777被确定为广泛的冠状病毒抑制的有希望的头.

研究的目的:

描述KB-2777对α和β冠状病毒的体外抗病毒活性.
为了确定KB-2777.7的添加时间 (TOA) 配置和主机响应签名.
为了评估KB-2777与基准DAA的结合性.

主要方法:

KB-2777对HCoV-NL63,HCoV-OC43和PEDV进行了测试,量化了病毒RNA,病毒载量 (TCID50) 和细胞病变效应 (CPE).
添加时间实验评估了不同治疗时间 (感染前,同时,感染后) 的抑制.
使用ZIP分数评估了与涅马特里尔维尔和GS-441524的组合; 宿主反应转录被描述.

主要成果:

在测试的冠状病毒中,KB-2777表现出强大的抗病毒活性,EC50值在1.59至5.27μM之间.
该化合物在治疗后表现出显著的活性,感染后48-72小时观察到明显的抑制.
与尼马特里尔维尔和GS-441524的组合显示了对协同效应的添加 (ZIP分数分别为5.16和8.40).
在感染细胞中KB-2777调节了宿主反应转录,包括IL6,IFNB1和ISG15.

结论:

KB-2777在阿尔法和β系中显示可复制的基于细胞的抗冠状病毒活性.
它的TOA概况表明了早期进入后的主机调制机制.
KB-2777与基准DAA兼容,支持进一步开发冠状病毒治疗.

关键词:

在这种情况下,HCoV-NL63 在HCoV-OC43中.在PEDV中,您可以使用PEDV.组合疗法治疗组合治疗.氧沙-4-碳胺胺添加时间的时间.

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