核酸感应的Toll-Like受体9/Toll-Like受体7系统是IgA脏病的潜在治疗标
Mingfeng Lee1, Hitoshi Suzuki2, Kei Ogiwara1
1Department of Nephrology, Juntendo University Faculty of Medicine, Tokyo, Japan.
Kidney international
|August 30, 2023
概括
收费类受体 (TLR) 7的激活加剧IgA脏病 (IgAN) 通过增加异常糖化IgA. 针对核酸感应TLRs可能为Igan患者提供新的治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 腎臟病學 (nephrology) 是一種醫學專業.
- 分子生物学分子生物学
背景情况:
- 不完全理解IgA病 (IgAN) 的进展情况.
- 以前的研究通过异常的IgA生产将通用类受体 (TLR) 9与IgAN联系起来.
- 最近的观察表明,像TLR7这样的RNA感应途径也可能导致Igan恶化.
研究的目的:
- 研究TLR7在IgA病 (IgAN) 进展中的作用.
- 为了确定TLR7激活是否影响异常糖化IgA的产生.
- 探索Igan患者桃体中的TLR7表达及其与疾病标志物的相关性.
主要方法:
- 在IGAN易受感染的小鼠中,用鼻子注射伊米基莫德 (TLR7配体).
- 在小鼠中评估血清IgA糖化,质IgA沉积和蛋白尿.
- 在实验室中刺激小鼠细胞,并分析细胞因子和IgA水平.
- 从Igan患者和对照组的人类桃体组织中分析TLR7和APRIL表达.
主要成果:
- 在小鼠中TLR7刺激增加了血清异常甘油化IgA,诱导了IgA在淋巴细胞中的沉积,并引起蛋白尿.
- 作为TLR抑制剂的氧化可以逆转TLR7诱导的损伤.
- 在体外,TLR7激活增加了IL-6和异常糖化IGA.
- 在Igan桃体中增加的TLR7表达与APRIL正相关,APRIL是异常IgA产生的一个关键因素.
结论:
- 核酸感应TLR7在IgA脏病发病过程中起着重要作用.
- 通过调节甘氨基化途径,TLR7刺激增强了异常IgA合成.
- 向核酸感应TLRs (TLR9和TLR7) 为Igan提供了一个有前途的治疗途径.
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