患有明显自身免疫/炎症性疾病的患者的调控性T细胞子群,有或没有先天免疫错误
Sevil Oskay Halacli1,2,3, Dilan Inan1, Saliha Esenboga1,2
1Division of Pediatric Immunology, Department of Basic Sciences of Pediatrics, Institute of Child's Health, Ankara 06230, Turkey.
Diagnostics (Basel, Switzerland)
|August 14, 2025
概括
调节性T细胞 (Tregs) 对免疫耐受性至关重要. 这项研究发现,特定的Treg子集 (CD4+CD127低CD25高FOXP3+) 在自身免疫性疾病中减少,这表明疾病监测的潜在生物标志物.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 这是一种自身免疫力.
背景情况:
- 调节性T细胞 (Tregs) 对于维持免疫耐受性和预防自身免疫性疾病至关重要.
- 改变的Treg数量或功能与各种自身免疫/炎症性 (AI/I) 疾病有关,包括具有先天性免疫错误 (IEI) 的疾病.
- 识别Treg子集的表型是开发疾病活性生物标志物的关键.
研究的目的:
- 在患有AI/I疾病的患者中调查Treg子集的表型特征.
- 为了将Treg亚群特征与免疫失调相关联,包括淋巴细胞概况和自身抗体多样性.
- 为了确定AI/I疾病中疾病活动的潜在生物标志物.
主要方法:
- 多参数流细胞计用于分析40名AI/I患者和38名健康对照的外周血液单核细胞.
- 测量了Treg亚群,淋巴细胞亚群和自身抗体多样性.
- 应用了先进的统计和机器学习技术 (t-SNE,k-means,ROC分析) 来分析免疫表型模式.
主要成果:
- 与对照组相比,在患者中观察到CD4+CD127低CD25高FOXP3+Tregs的显著下降 (p <0.05).
- 患者的FOXP3表达强度降低显示出诊断潜力 (AUC = 0.754).
- 这种Treg亚群与CD19+B细胞有负相关性,与自身抗体多样性有正相关性,无监督聚类显示患者异质性.
结论:
- 患者表现出CD4+CD127低CD25高FOXP3+调节性T细胞功能受损,其特征是频率和FOXP3表达减少.
- 无监督的聚类突出了免疫异质性和FOXP3-中心调控失败在疾病病理生理学中的关键作用.
- 评估FOXP3-中心的免疫因子为监测自身免疫和免疫缺陷条件下的疾病进展提供了一个有希望的方法.
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