VSIG4通过抑制巨细胞NLRP3炎症酶和热灭菌来改善肠道炎症
Yuan Liao1, Chaonan Deng2, Xichuan Wang1
1Department of Pathology, The Sixth People's Hospital of Chengdu, Chengdu 610000, Sichuan Province, China.
Tissue & cell
|December 19, 2023
概括
在炎症性肠病 (IBD) 患者中,发现V-set和含有免疫球蛋白域4 (VSIG4) 的下调. VSIG4的过度表达逆转了M1巨细胞的炎症反应,这表明它可以通过调节巨细胞表型来缓解IBD.
科学领域:
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
背景情况:
- 炎症性肠病 (IBD) 的特点是消化系统的异常炎症.
- 含有V集和免疫球蛋白域4 (VSIG4) 是一种具有已知的抗炎活性的巨受体,但其在IBD中的作用尚未被探索.
研究的目的:
- 研究VSIG4在炎症性肠病中的作用和潜在机制.
主要方法:
- 临床IBD样本的免疫组织化学染色.
- 在体外分化和刺激THP-1衍生巨细胞 (M1/M2表型).
- VSIG4过度表达,西部斑,免疫光学,ELISA,以及与Caco-2细胞的细胞共同培养模型.
主要成果:
- 在IBD患者中,VSIG4表达下调,与NLRP3炎症酶激活负相关.
- M1巨细胞显示较高的NLRP3炎症和热细胞水平,这些水平被VSIG4过度表达逆转.
- 巨细胞中VSIG4的过度表达减少了Caco-2细胞活力丧失,炎症,亡和烧亡.
结论:
- 通过调节M1/M2巨细胞两极化,VSIG4可以缓解IBD中的肠炎症.
- VSIG4代表了管理炎症性肠病的潜在治疗标.
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