划痕配体是RA患者抗TNF反应的生物标志物
Stephanie R Zack1,2, Anja Meyer1,2, Brian Zanotti3
1Jesse Brown VA Medical Center, Chicago, IL, USA.
Angiogenesis
|October 5, 2023
概括
诺奇通路在类风湿性关节炎 (RA) 中至关重要. 关节骨髓性RA的Notch配体可以预测抗TNF治疗的反应,并激活关节骨髓性RA结膜组织中的细胞.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 类风湿病学 类风湿病学
背景情况:
- 诺奇信号通路与类风湿性关节炎 (RA) 的病变发生有关.
- 了解RA突发性关节组织 (ST) 细胞中诺奇配体和受体的作用至关重要.
- 研究RA治疗对Notch通路表达的影响对于治疗策略至关重要.
研究的目的:
- 为了研究RA突发性关节组织 (ST) 细胞中Notch通路的功能意义.
- 确定RA治疗对ST细胞中Notch通路组件表达的影响.
- 在Notch路径中识别抗TNF治疗响应的潜在生物标志物.
主要方法:
- 用形态学研究和单细胞RNA测序 (scRNA-seq) 来分析RAST细胞中的Notch途径组件.
- 分析的细胞包括巨细胞 (MΦs),纤维细胞样同胞细胞 (FLSs) 和内皮细胞.
- 在用TLR4/5连接体,TNF,Syntenin-1和IL-6刺激后,以及在接受DMARD,IL-6R Ab或抗TNF疗法治疗的患者中,评估了表达水平.
主要成果:
- JAG1,DLL4和Notch1富含RAST巨细胞 (MΦs),其转录通过TLR4/5结合和TNF升调.
- 纤维细胞样同胞细胞 (FLS) 和内皮细胞也表达了Notch通路组件,表达由TLR4结合和IL-6调节.
- 虽然DMARDs和IL-6R Ab疗法没有改变突突转录组,但抗TNF疗法在骨髓类病变型RA患者中减少了JAG1/JAG2/DLL1/DLL4,这表明它作为响应标志物的作用.
结论:
- RA 突性巨细胞表达由炎症刺激调节的诺奇配体 (JAG1,DLL4).
- 在RA FLS和内皮细胞上存在痕通路组件,这表明细胞-细胞通信的潜力.
- 在RA中,骨髓突结合体可能作为抗TNF治疗响应性的预测生物标志物.
关键词:
DLL4 DLL4 DLL4 DLL4 DLL4 DLL4 DLL4 DLL4 DLL4 DLL4 DLL4 DLL4 DLL4 DLL4内皮细胞是内皮细胞.简介:JAG1是一支特工突击队.标记1 标记1 标记在 RA FLS 中使用 RA FLS.在RA的巨细胞.更多相关视频
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