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Investigating Intestinal Inflammation in DSS-induced Model of IBD
Published on: February 1, 2012
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通过调节TRPV1-MAPK/NF-κB通路,诱导大肠炎中的巨细胞M2b两极化
Zehua Zhang1, Zhuyun Leng1, Le Kang2
1Endoscopy Center, Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.
概括
酒精通过TRPV1-MAPK/NF-κB信号传递促进巨细胞M2b极化,使结肠炎恶化. 泽 (CPZ) 显示出治疗酒精加剧性结肠炎的潜力.
科学领域:
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 巨细胞在炎症性肠病 (IBD) 中发挥双重作用,影响炎症或基于两极分化的修复.
- 酒精消费与大肠炎风险增加有关,但其对IBD巨细胞的影响尚不清楚.
研究的目的:
- 为了研究酒精对巨细胞的影响,德克斯硫酸盐 (DSS) 诱导的大肠炎.
- 阐明酒精对巨细胞两极分化和大肠炎中的功能影响的机制.
主要方法:
- 使用DSS治疗的小鼠暴露于酒精和TRPV1抗剂 (泽).
- 在结肠组织和巨细胞上进行了组织学,分子 (Western blot,qPCR,RNA-seq) 和细胞分析.
- 评估了离子流入,信号通路激活 (MAPK,NF-κB) 和细胞因子分泌.
主要成果:
- 酒精加剧了DSS诱导的大肠炎,并增加了结肠巨细胞的炎症性细胞因子分泌.
- 酒精通过TRPV1增强了LPS诱导的巨细胞中的流,激活了MAPK/NF-κB通路,并促进了M2b极化.
- 西平 (CPZ) 逆转了酒精的促炎作用,抑制了流入和M2b两极化.
结论:
- 酒精通过TRPV1-MAPK/NF-κB通路诱导M2b巨分极,从而加剧实验性结肠炎.
- 泽 (CPZ) 成为酒精加剧性结肠炎的潜在治疗剂.
- TRPV1和TRPA1代表了IBD治疗的新型治疗点.
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