骨髓细胞粘附分子1 (CADM1) 在人类炎症性肠病中促进促炎信号
Kimberly Darlington1, Alexandria J Shumway2, Chandan Sona3
1Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
Cellular and molecular gastroenterology and hepatology
|August 29, 2025
概括
细胞粘附分子1 (CADM1) 在炎症性肠病 (IBD) 中促进炎症. 针对骨髓细胞中的CADM1减少了结肠炎的严重程度,并保护了肠道上皮,表明CADM1是治疗点.
科学领域:
- 免疫学
- 胃肠病学
- 分子生物学
背景情况:
- 炎症性肠道疾病 (IBD) 涉及肠道上皮损伤.
- 细胞毒性T细胞与IBD的发病有关.
- 细胞粘附分子CADM1在IBD结肠中上调.
研究的目的:
- 研究CADM1在IBD病变中的作用.
- 确定CADM1在骨髓细胞中的功能.
- 评估CADM1作为IBD的治疗点.
主要方法:
- 从IBD和非IBD (NIBD) 患者的结肠组织进行RNA测序.
- 可溶性CADM1 (sCADM1) 在膜自身单核细胞 (LPMC) 的功能性表征.
- 为化学诱导的结肠炎生成一个神经细胞特异性的Cadm1条件淘汰小鼠模型.
主要成果:
- 在IBD结肠中的巨细胞和树突细胞中增加了CADM1的表达.
- 骨髓特异性Cadm1删除降低了T细胞的激活,并保护小鼠免受大肠炎的影响.
- 服用CADM1中和抗体可以改善大肠炎并保护肠表皮.
- 在IBD患者中,血清sCADM1水平升高与LPMCs中增强的炎症性STAT3酸化相关.
结论:
- 在结肠中,CADM1 作为促炎信号的媒介.
- 对于IBD来说,CADM1是一个潜在的治疗目标.
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