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循环的外周辅助T细胞被扩大,并与多层炎的颗粒瘤病的疾病活动相关联

Hang Liao¹, Nanthicha Inrueangsri¹, Matthew A Jackson-Wood²

¹Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, 9713 GZ, the Netherlands.

Arthritis research & therapy

|December 6, 2025

概括

循环的Tph (T卵泡辅助细胞) 细胞在多炎 (GPA) 的活性颗粒瘤中增加和激活. 这些Tph细胞与疾病活性相关,这表明它们在GPA病变发生过程中的作用以及作为治疗点的潜力.

科学领域:

免疫学免疫学免疫学
类风湿病学类风湿病学
细胞生物学细胞生物学

背景情况:

外围辅助T (Tph) 细胞是最近发现的T辅助细胞的一个子集,涉及到自身免疫性疾病.
对于Tph细胞在多炎 (GPA) 颗粒瘤症中的特定作用尚不清楚.
在GPA中研究Tph细胞可以揭示疾病机制的新见解.

研究的目的:

研究GPA中循环Tph (cTph) 细胞的临床意义.
为了确定cTph细胞频率和表型是否在活性GPA,缓解GPA和健康对照之间有所不同.
探索cTph细胞和GPA疾病活动标志物之间的关联.

主要方法:

收集了来自74名缓解GPA患者,26名活跃GPA患者和22名健康对照者的外周血液单核细胞.
使用流细胞计量量化cTph细胞及其子集.
进行了单细胞多组体分析,测量了血IL-21,并评估了与临床参数的关联.

主要成果:

与缓解期患者相比,活跃的GPA患者的cTph细胞频率和数量增加.
两组GPA都显示了cTph2倾斜分布与健康对照对比.
活跃GPA中的cTph细胞表现出激活的表型和亲炎性基因表达,与疾病活性和c-ANCA标位相关.

结论:

在活跃的GPA中,循环的Tph细胞被扩大,激活,并倾向于cTph2表型.
cTph细胞与疾病活动的关联表明它在GPA病变发生过程中发挥了作用.
cTph细胞代表了GPA的潜在治疗点,值得进一步研究.

关键词:

疾病活动疾病活动带有多阳性炎的粒状瘤.周围的辅助T细胞单细胞多组体的单细胞多组体

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