Science:Bruton酪氨酸激酶治疗重症COVID-19患者的疗效

2020-06-09 QQY MedSci原创

重症COVID-19患者具有提示巨噬细胞激活的超炎性免疫反应。Bruton酪氨酸激酶(BTK)调节巨噬细胞信号转导和活化。

重症COVID-19患者具有提示巨噬细胞激活的超炎性免疫反应。Bruton酪氨酸激酶(BTK)调节巨噬细胞信号转导和活化。

Acalabrutinib,一种选择性BTK抑制剂,被开放性的用于19位住院的重症COVID-19患者(11位依赖于辅助供氧,8位采用了机械通气),其中18位患者在起始时的需氧量增加。

经过10-14天的治疗,acalabrutinib改善了大多数患者的氧合能力,通常在1-3天内,而且没有明显的毒性。大部分患者的炎症检测指标,C反应蛋白和IL-6,迅速恢复正常,与淋巴细胞减少一样,这与氧合能力改善有关。

Acalabrutinib治疗结束时,11位依赖辅助供氧的患者中有8位(72.7%)顺利出院;机械通气组有4位(50%)患者成功拔管,2位(25%)顺利出院。

体外分析显示,与健康志愿者的血液单核细胞相比,重症COVID-19患者的血液单核细胞中的BTK活性显著升高(自磷酸化),IL-6产量增加。

本研究结果提示,使用BTK抑制剂靶向宿主的超炎症是重症COVID-19患者的一种治疗策略,目前已开展了一项验证性的国际前瞻性随机对照临床试验对其进行进一步的评估。

原始出处:

Mark Roschewski,et al. Inhibition of Bruton tyrosine kinase in patients with severe COVID-19. Science Immunology  05 Jun 2020:
Vol. 5, Issue 48, eabd0110. DOI: 10.1126/sciimmunol.abd0110

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    2020-06-10 jichang
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    2020-06-10 redcrab
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    2020-06-09 内科新手

    谢谢梅斯提供这么好的信息,学到很多

    0

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