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IFP35通过促进Nrf2-调节的铁灭菌来加剧金黄色葡萄球菌感染

Min Dai¹, Wei Ouyang¹, Yangle Yu²

¹Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China.

Journal of advanced research

|September 30, 2023

概括

干扰素诱导的蛋白35 (IFP35) 通过通过Nrf2降解促进铁亡,加剧金色葡萄球菌 (SA) 肺部感染. 针对IFP35可能为SA感染提供新的治疗策略.

科学领域:

免疫学免疫学免疫学
细胞死亡机制细胞死亡机制
传染性疾病传染性疾病

背景情况:

严重的金黄色葡萄球菌 (SA) 感染对健康构成重大风险.
干扰素诱导蛋白35 (IFP35) 在SA感染中的作用及其与铁亡的联系仍然不清楚.
铁亡,一种受调节的细胞死亡形式,与组织损伤有关,但其在SA诱导的病理学中的作用尚不清楚.

研究的目的:

研究IFP35在Staphylococcus aureus引起的肺部感染中的作用和分子机制.
确定铁死是否参与SA诱导的肺损伤以及IFP35如何调节它.

主要方法:

已建立的SA感染的小鼠模型使用野生型和IFP35淘汰赛小鼠.
通过组织学分析评估肺部损伤.
使用qPCR,西方涂抹,流细胞计和共聚焦显微镜的量化铁亡标记物.
使用共免疫沉和免疫光,阐明了调节机制.

主要成果:

在SA感染的巨细胞和肺组织中,IFP35的表达被上调.
IFP35缺陷显著地保护了SA诱导的肺损伤和铁亡.
铁亡被确定为SA感染中肺损伤的关键因素.
发现IFP35通过促进Nrf2.2的无化和降解来促进铁亡.

结论:

通过向Nrf2进行降解,IFP35促进铁亡并加剧SA感染期间的肺损伤.
抑制IFP35为治疗SA诱导的传染病提供了潜在的治疗策略.

关键词:

铁化是铁化的一种.IFP3535 年度工作计划这就是NRF2的NRF2.黄金葡萄球菌黄金葡萄球菌在Ubiquitination中使用.

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