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TIPE2抑制了SARS-CoV-2尖端蛋白触发的巨细胞中的铁和亲炎性两极化

Simin Zhu¹, Wei Li¹, Yuqiu Hao¹

¹Department of Respiratory Medicine, Second Affiliated Hospital of Jilin University, Ziqiang Street 218, Changchun, 130041, Jilin, China.

Scientific reports

|August 18, 2025

概括

瘤坏死因子-α诱导蛋白-8样蛋白2 (TIPE2) 有助于调节COVID-19中的免疫反应. 恢复TIPE2水平可能会减少有害的炎症和严重情况下的器官损伤.

科学领域:

免疫学免疫学免疫学
病毒学病毒学
细胞生物学细胞生物学

背景情况:

由SARS-CoV-2引起的COVID-19导致危险的细胞因子风暴和严重情况下的器官衰竭.
免疫调节器TIPE2和铁亡标志物GPx4的减少表达与重症COVID-19患者的炎症相关.
巨细胞两极分化和功能障碍在COVID-19病变发生过程中至关重要.

研究的目的:

研究TIPE2在SARS-CoV-2 S蛋白诱导的巨细胞极化和铁死中的作用.
探索TIPE2作为缓解COVID-19相关炎症的潜在治疗点.

主要方法:

使用一种由THP-1衍生的巨模型,用SARS-CoV-2尖峰 (S) 蛋白刺激.
分析了TIPE2对巨细胞极化 (M1/M2) 和铁亡的调节.
在患者PBMC中对TIPE2和GPx4mRNA表达的相关临床观察.

主要成果:

TIPE2显著调节S蛋白诱导的巨细胞极化.
TIPE2抑制了促炎性M1巨细胞的两极分化,并促进了抗炎性M2两极分化.
在巨模型中,TIPE2减轻了炎症反应.

结论:

在SARS-CoV-2感染的进展中,TIPE2起着至关重要的免疫调节作用.
通过减少病理性炎症,TIPE2是管理严重COVID-19的潜在治疗标.

关键词:

在 COVID-19 疫情中,铁化是铁化的一种.巨细胞的两极分化在SARS-CoV-2病毒中,尖蛋白是最常见的.类型2 类型2 类型2

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