SCIENCE:III型干扰素在病毒识别时破坏肺上皮屏障 

2020-06-13 MedSci原创 MedSci原创

下呼吸道病毒感染是导致死亡的一个主要原因。越来越多的证据表明,大多数严重病例的特点是异常的免疫反应,而并不取决于病毒负荷。

下呼吸道病毒感染是导致死亡的一个主要原因。越来越多的证据表明,大多数严重病例的特点是异常的免疫反应,而并不取决于病毒负荷。

在这里,研究人员评估了III型干扰素(IFN-λ)如何有助于RNA病毒诱导的发病机制。

研究人员发现,IFN-λ存在于COVID-19患者的下呼吸道,但不是上呼吸道。

在小鼠中,研究人员证明,在响应合成病毒RNA时,肺树突状细胞产生的IFN-λ会诱导屏障损伤,导致对致命性细菌超级感染的易感性。

这些研究结果为重新考虑IFN-λ的病理生理作用,及其在临床上对抗流行性病毒(如流感病毒)以及新兴的SARS-CoV-2病毒感染的可能性提供了强有力的依据。

 

原始出处:

Achille Broggi et al. Type III interferons disrupt the lung epithelial barrier upon viral recognition, SCIENCE (2020). DOI: 10.1126/science.abc3545

 

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    2021-04-24 juliusluan78
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    2020-06-15 jichang

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