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在人类的THP-1巨细胞中,Oropouche病毒感染会诱导热

Eduardo Jurado-Cobena¹, Cigdem Alkan², Tetsuro Ikegami³

¹Department of Microbiology and Immunology, The University of Texas Medical Branch at Galveston, 301 University Boulevard, TX, Galveston, 77555, USA.

|July 25, 2025

概括

耳鼻病毒 (OROV) 感染巨细胞,触发NLRP3炎症酶激活. 这导致热和IL-1β的释放,这是一个关键的炎症性细胞因子,有助于Oropouche发烧的病原性.

科学领域:

病毒学病毒学
免疫学免疫学免疫学
细胞生物学细胞生物学

背景情况:

耳鼻病毒 (OROV) 引起耳鼻热,这是美洲新兴的动物传播疾病.
严重的OROV感染会导致神经和发育方面的并发症.
巨细胞和炎症酶途径在OROV病原发生中的作用尚不清楚.

研究的目的:

为了研究NLRP3炎症酶在OROV感染的人类巨细胞中的作用.
为了确定OROV感染是否会诱导巨细胞中的热和IL-1β释放.

主要方法:

人类的THP-1巨细胞被OROV感染.
分析炎症酶激活,酶活性,热致死标记物 (GSDMD,GSDME) 和IL-1β释放.
实验使用NLRP3缺乏的巨细胞进行.

主要成果:

巨细胞,但不是单细胞,容易受到OROV感染.
OROV感染通过caspase-1, -3,和 -8激活诱导热,导致GSDMD/GSDME裂变和IL-1β释放.
在NLRP3缺乏症中,可取消OROV诱导的酶激活,灭以及IL-1β的产生.

结论:

OROV感染激活了巨细胞中的NLRP3炎症酶,驱动热和IL-1β释放.
这种NLRP3介导的途径对于OROV诱导的炎症和发病过程至关重要.
巨细胞在宿主对Oropouche发烧的反应中发挥着重要作用.

关键词:

加斯德明 D D D 燃气站 E E E E 燃气站互乐金-1β是其中的一种.巨细胞是一个巨细胞.在NLRP3中,NLRP3是NLRP3中的一个.耳鼻病毒病毒热灭菌的发生.

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