CELL:托泊替康可以抑制新冠相关的致命炎症反应

2021-04-09 haibei MedSci原创

研究人员使用了两种剂量的拓扑替康(TPT),一种FDA批准的TOP1抑制剂进行治疗,发现其可抑制仓鼠感染诱导的炎症。在转基因小鼠模型中,晚至感染后4天开始TPT治疗,都可以降低发病率并减少死亡率。

目前为止,新冠的大流行已经影响了全球数百万人的生命,并对全球卫生系统和经济造成了巨大的负担。开发针对SARS-CoV-2的新型疗法是当务之急。在评估和采取预防措施的同时,人们亟需针对SARS-CoV-2并能够发挥治疗功能的药物,尤其是针对严重的COVID-19病例。

重症COVID-19的疾病进展特点是初始阶段病毒血症增加,而后逐渐消失,随后是以全身炎症陡增为特征的第二阶段。已有的大型回顾性研究表明,炎症细胞因子和促炎因子水平的升高与疾病严重程度和死亡率的增加有关

最近,研究人员使用多维度的表观遗传学、转录、体外和体内分析,报告了拓扑异构酶1(TOP1)的抑制可以缓解SARS-CoV-2诱导的致命性炎症

研究人员使用了两种剂量的拓扑替康(TPT),一种FDA批准的TOP1抑制剂进行治疗,发现其可抑制仓鼠感染诱导的炎症。在转基因小鼠模型中,晚至感染后4天开始TPT治疗,都可以降低发病率并减少死亡率。

托泊替康抑制新冠相关的炎症反应

这些结果支持了TOP1抑制剂作为一种有效的宿主导向疗法对抗严重SARS-CoV-2感染的潜力。TPT及其衍生物是廉价的临床级抑制剂,可在大多数国家获得。

此外,我们还需要进行临床试验,来评估重新使用TOP1抑制剂治疗COVID-19在人类中的疗效。

 

原始出处:

Jessica Sook Yuin Ho et al. TOP1 inhibition therapy protects against SARS-CoV-2-induced lethal inflammation. CELL (2021). 

 

 

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    2022-02-04 维他命
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    2021-04-09 公卫新人

    新冠肺炎,疫情何时才能消失

    0

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