哥斯塔丁M诱导肠道亚皮质肌纤维细胞中的一种亲炎性表型
Georgios Kokkotis1, Eirini Filidou2,3, Gesthimani Tarapatzi2,3
1GI-Unit, 3rd Department of Internal Medicine, Sotiria Hospital, Athens, Greece.
Inflammatory bowel diseases
|May 8, 2024
概括
在炎症性肠病 (IBD) 中,哥斯塔丁-M (OSM) 受体升高,这表明OSM可能通过吸引免疫细胞进入肠道来驱动炎症. 这项研究调查了OSM.
科学领域:
- 胃肠道学和免疫学
- 细胞生物学和分子医学
背景情况:
- 哥斯塔丁-M (OSM) 与炎症性肠病 (IBD) 和纤维化中的抗TNF-α耐药性有关.
- 它在IBD的发病过程中的作用,特别是关于肠子亚皮质肌纤维细胞 (SEMFs) 的作用,需要进一步阐明.
研究的目的:
- 研究OSM及其受体 (OSMR,gp130) 在SEMF上的表达.
- 在IBD的背景下,确定OSM刺激对SEMF的影响.
主要方法:
- 在IBD患者活检和SEMF中分析OSM,OSMR,gp130,纤维化和化学性因子表达.
- 用OSM和IL-1α/TNF-α刺激SEMF和人类肠道有机体 (HIOs).
- 粘膜活检的RNAseq分析.
主要成果:
- 在IBD患者的活检中,OSMR和gp130过度表达,特别是在炎症区域.
- 通过OSM刺激SEMFs和HIOs,增加了化基因的表达 (CCL2,CXCL9,CXCL10,CXCL11).
- 在IBD活检中,OSM受体表达与这些化学激素表达呈正相关性.
结论:
- 人类SEMF在IBD等炎症性疾病中过度表达OSMR.
- 通过刺激SEMFs,OSM可能会促进IBD炎症,通过化学吸引免疫细胞进入肠道粘膜.
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