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缺少Hspa13会损害边缘区域B细胞的调节功能,并导致狼的发病

Chen Xing¹, Haoran Cui¹, Ge Li¹

¹Beijing Institute of Basic Medical Sciences, Beijing, 100850, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|December 31, 2024

概括

热冲击蛋白13 (Hspa13) 调节调节性B细胞 (Bregs) 中的IL-10的产生,影响狼的进展. 降低Hspa13会损害Breg功能,阻碍调节性T细胞分化,并恶化狼病理.

科学领域:

免疫学免疫学免疫学
分子生物学分子生物学
自免疫性疾病自免疫性疾病

背景情况:

失调的IL-10产生调节性B细胞 (Bregs) 与系统性红斑狼 (SLE) 的进展有关.
热冲击蛋白 (HSP) 在自身免疫性疾病中具有免疫调节作用,但HSpa13在Bregs和狼中的特定功能尚不清楚.

研究的目的:

阐明Hspa13在调节布雷格功能中的分子机制及其对狼病原性的影响.

主要方法:

在Bregs和IL-10阴性B细胞中比较Hspa13表达.
在B细胞中评估IL-10的产生,Hspa13被淘汰/淘汰.
研究了Hspa13与IL-10促进体的结合.
在CD19creHspa13fl/fl小鼠中分析了Breg和调控性T细胞 (Treg) 的分化.
在狼模型中评估了Hspa13表达Bregs的治疗潜力.

主要成果:

Bregs表现出比IL-10阴性B细胞更高的Hspa13表达.
Hspa13的淘汰/淘汰会影响B细胞中的IL-10诱导.
Hspa13直接与IL-10促进体结合,激活转录.
Hspa13在边缘区 (MZ) B细胞中富含,用于IL-10调节.
CD19creHspa13fl/fl小鼠显示Treg分化受损,狼病理恶化.
收养Hspa13缺乏Bregs的转移未能改善狼的症状.

结论:

Hspa13在调节Bregs的IL-10产生方面发挥着至关重要的作用,特别是在MZ B细胞内.
缺少Hspa13会影响Breg介导的Treg诱导,从而加剧狼的发病性.
Hspa13是治疗狼和相关自身免疫性疾病的潜在治疗标.

关键词:

在Hspa13中使用.一个IL-10的IL-10.MZ B 细胞 MZ B 细胞一个小小的东西.监管性B单元格的监管性B单元格监管T细胞的监管性T细胞

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