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冷诱导性RNA结合蛋白通过激活IBS-D中的巨细胞促进肠道屏障功能障碍和内脏过敏性
Tao Wang1, Peiwen Yang2, Siyuan Dong3
1Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China; Shaanxi Province Key Laboratory of Gastrointestinal Motility Disorders, Xi'an, Shaanxi Province, China; National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, Shaanxi Provincial Center for Regenerative Medicine and Surgical Engineering, Center for Regenerative and Reconstructive Medicine, Med-X Institute, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China.
冷诱导型RNA结合蛋白 (CIRP) 通过激活巨细胞,加剧了腹主导性易怒肠综合征 (IBS-D) 中的肠道屏障功能障碍和内脏过敏. 抑制CIRP显示了IBS-D的治疗潜力.
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:
- 冷诱导型RNA结合蛋白 (CIRP) 影响肠道屏障功能和免疫反应.
- 乳腺细胞 (MCs) 是刺激性肠综合征 (IBS) 发病过程中的关键参与者.
- 在杆细胞调节和IBS与腹 (IBS-D) 中CIRP的具体作用尚不清楚.
研究的目的:
- 研究CIRP在IBS-D病理生理学中的作用.
- 确定CIRP如何影响IBS-D患者的乳腺细胞活动,肠道屏障功能和内脏敏感性.
主要方法:
- 评估CIRP表达在乙酸/抑制应激 (AA/RS) 诱导的IBS-D.小鼠模型中.
- 用于重组性小鼠CIRP (rmCIRP) 或使用CIRP淘汰 (CIRP-/-) 的小鼠.
- 评估肠道屏障功能,内脏敏感性和巨细胞激活.
主要成果:
- 在IBS-D模型中,CIRP表达显著增加.
- 外源CIRP通过巨细胞激活恶化了肠道屏障功能障碍和过敏性.
- 缺乏CIRP改善了肠道屏障功能,并通过抑制巨细胞减少了过敏性.
- 抑制TLR4和TRPV1阻断了CIRP诱导的大细胞激活.
结论:
- 在IBS-D的发展中,CIRP起着至关重要的作用.
- 准CIRP为管理IBS-D提供了一个潜在的治疗策略.
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