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在PBC患者中,通过干扰素α调节CD14⁺单细胞上的CD47表达

Xi Su^1,2, Wenwen Jin^1,2, Lizhi Liu²

¹Department of Laboratory Medicine, Hunan Provincial People's Hospital (the First- Affiliated Hospital of Hunan Normal University), Changsha, China.

Frontiers in immunology

|December 19, 2023

概括

这项研究在初级胆道胆道炎 (PBC) 患者中发现CD47表达和抗CD47抗体的增加,这表明CD47/SIRPα信号失衡有助于PBC病变并提供诊断潜力.

科学领域:

免疫学免疫学免疫学
肝病学肝病学是一种肝病学.
自免疫性疾病自免疫性疾病

背景情况:

初级胆道胆炎 (PBC) 是一种自身免疫性肝脏疾病,其病因不明.
CD47/信号调节蛋白α (SIRPα) 途径通过调节炎症反应,与自身免疫性疾病有关.

研究的目的:

研究CD47/SIRPα表达及其在PBC病变发生中的作用.
探索PBC中CD47相关标记物的诊断潜力.

主要方法:

流细胞测量用于测量来自PBC患者和健康对照的外周血液单核细胞 (PBMC) 上的CD47和SIRPα表达.
用患者/健康血清,IFN-α或TNF-α刺激PBMC,以评估CD47表达变化.
通过ELISA测试,量化了血清抗CD47抗体和IFN-α水平.
在用抗CD47抗体和LPS刺激的单细胞中分析了TNF-α表达.

主要成果:

与对照人群相比,PBC患者的单细胞中CD47表达显著更高.
PBC患者血清和IFN-α增加了单细胞上的CD47表达.
血清抗CD47抗体和IFN-α水平在PBC患者中升高.
反CD47抗体增强了单细胞中LPS诱导的TNF-α产生.

结论:

CD47/SIRPα通路在PBC中不平衡,并可能通过炎症机制促进疾病的发病.
在PBC患者中CD47表达率升高和抗CD47抗体的存在表明,它们有可能作为诊断和治疗点的生物标志物.

关键词:

在PBC中,PBC是PBC.这就是SIRPα.cd47 cd47 在线播放免疫检查点是一个检查点.炎症反应是一种炎症反应.

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