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Thomas Tipih¹, Kimberly Meade-White¹, Deepashri Rao¹

¹Laboratory of Virology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rocky Mountain Laboratories, Hamilton, MT, USA.

Antiviral research

|August 23, 2023

概括

费维皮拉维尔和利巴维林在治疗克里米亚 - 刚果出血性发烧病毒 (CCHFV) 感染方面表现有前途. 这些药物保护小鼠免受致命的CCHFV疾病,即使治疗延迟,突出了它们作为CCHFV对策的潜力.

科学领域:

病毒学病毒学
传染性疾病传染性疾病
药物发现药物发现药物发现

背景情况:

克里米亚 - 刚果出血热病毒 (CCHFV) 引起严重的疾病,死亡率高.
目前没有批准的抗病毒药物或疫苗用于CCHFV.
一个致命的小鼠模型对于评估潜在的CCHFV治疗非常重要.

研究的目的:

建立和验证CCHFV感染的致命小鼠模型.
用这个模型评估各种药物对致命的CCHFV感染的疗效.
为了确定CCHFV治疗的潜在抗病毒药物.

主要方法:

使用适应小鼠CCHFV菌株 (MA-CCHFV) 开发了一种致命的小鼠模型.
向感染的小鼠注射了潜在的抗病毒药物 (单皮拉维尔,法维皮拉维尔,里巴维林,提格赛克林,德克萨米他,甲基前尼索隆).
根据生存率,临床症状,病毒载量和病理学来评估药物的疗效.

主要成果:

提格环素,单皮拉维尔和皮质类固醇并没有保护小鼠免受致命的MA-CCHFV感染.
费维皮拉维尔和利巴维林显著保护临床疾病和死亡.
在接受favipiravir和ribavirin治疗的幸存者中,CCHFVRNA持续存在,这表明病毒清除不完全.

结论:

费维皮拉维尔和利巴维林在相关动物模型中表现出抗CCHFV的有效性.
已建立的MA-CCHFV小鼠模型适合进一步开发CCHFV对策.
需要进一步的研究来优化治疗策略,并实现完全的病毒根除.

关键词:

皮质类固醇是一种皮质类固醇.克里米亚-刚果出血热病毒病毒费维皮拉维尔 (Favipiravir) 是一个莫尔努皮拉维尔 (Molnupiravir) 是一种鼠标模型模型利巴维林 (ribavirin) 是一种药物.提格环素是一种提格环素.

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