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口服的4'-氨酸可以拯救非人类灵长类动物的拉萨发烧

Robert W Cross^1,2, Jacquelyn Turcinovic^1,2, Abhishek N Prasad^1,2

¹Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX, USA.

|January 7, 2026

概括

4'- fluorouridine有效地治疗了非洲绿的拉萨热,清除了病毒,甚至在延迟治疗时也确保了生存. 这种抗病毒药物有望控制疫情和治疗受感染的患者.

科学领域:

病毒学
传染性疾病
药理学

背景情况:

拉萨热缺乏经批准的治疗方法,
在几内亚猪模型中显示出4'- 尿素 (EIDD-2749) 的保护作用.
更致病的拉萨病毒株需要在相关动物模型中进行评估.

研究的目的:

评估4'- uridine对非洲绿的治疗疗效.
使用当代的拉萨病毒菌株来评估4'-尿素.
确定4'- 氨酸作为暴露后预防和治疗剂的潜力.

主要方法:

非洲绿感染了拉萨病毒 (第七代).
感染后6天开始每天口服4'- 尿素.
对病毒载量,临床症状和存活率进行了监测.
针对性转录学分析了细胞免疫反应.

主要成果:

在5个子中,有4个子的病毒清除速度很快.
所有接受治疗的子都在研究期间存活下来.
转录组分析显示免疫反应和细胞动力学控制.

结论:

4' - 氨酸对拉萨热有显著的治疗潜力.
即使在疾病发作后开始治疗,该药也有效.
疫情控制和患者治疗需要进一步发展.

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