通过抑制p68/miR-155信号通路,Nogo-B抑制可以限制性结肠炎
Juan Zheng1, Shengnan Wang1, Tingting Zhang1
1Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes, School of Food and Biological Engineering, Hefei University of Technology, Hefei, China.
International immunopharmacology
|May 27, 2023
概括
通过抑制炎症,Nogo-B 缺乏改善了性结肠炎 (UC). 阻断Nogo-B可能为UC治疗提供了一个新的治疗策略.
科学领域:
- 胃肠病学 胃肠病学
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 性结肠炎 (UC) 是一种全球性炎症性肠病,原因不明.
- 西方化的生活方式与UC患病率的增加有关.
- 在UC病原体中Nogo-B的作用需要阐明.
研究的目的:
- 调查Nogo-B在性结肠炎的发展中的作用.
- 探索涉及Nogo-B,miR-155和炎症的潜在分子机制.
主要方法:
- 建立了酸 (DSS) 诱导的性结肠炎小鼠模型.
- 使用nogo缺陷和野生型小鼠来评估疾病严重程度和炎症标志物.
- 在体外研究中使用细胞系 (RAW264.7,THP1,NCM460) 来检查Nogo-B或miR-155干预下的巨细胞炎症和肠细胞行为.
主要成果:
- 诺戈缺乏症显著减轻了DSS诱导的UC症状,包括体重减轻和结肠损伤.
- 诺戈-B 缺乏减少了促炎性细胞因子 (TNFα,IL-1β,IL-6) 和增强了紧固/粘附结蛋白.
- 诺戈-B抑制降低了miR-155成熟度,这对细胞因子表达至关重要;诺戈-B与p68相互作用,促进miR-155成熟度和巨细胞炎症.
结论:
- 诺戈缺乏通过抑制p68-miR-155介导的炎症来减轻实验性性结肠炎.
- 诺戈-B抑制为性结肠炎的预防和治疗提供了一个有希望的治疗途径.
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