岛屿自反应性CD4+T细胞与1型糖尿病患者对阿莱法塞普的反应有关
Elisa Balmas1, Janice Chen1, Alex K Hu2
1Center for Translational Immunology, and.
JCI insight
|September 26, 2023
概括
在基线确定小岛抗原反应性CD4+T细胞可以预测1型糖尿病 (T1D) 的治疗反应. 特定的T细胞子集与C-的保存相关,有助于T1D的治疗选择.
科学领域:
- 免疫学 免疫学 免疫学
- 内分泌学 在内分泌学.
- 临床试验 临床试验
背景情况:
- 1型糖尿病 (T1D) 的治疗反应有所不同,因此需要生物标志物来预测疗效.
- 在T1DAL试验中,研究了alefacept (LFA-3-Ig) 针对新发T1D的T细胞向,观察了约30%的参与者C-的保存.
研究的目的:
- 为了确定基线生物标志物,预测T1D患者治疗alefacept的C-保存.
- 与治疗反应相关的CD4+T细胞及其表型的特征.
主要方法:
- 流细胞计和单细胞RNA测序被用来分析从前处理的外周血液单核细胞 (PBMC) 样本中的IAR CD4+ T细胞.
- 分析的重点是基线T细胞表型,转录形状和T细胞受体 (TCR) 克隆性.
主要成果:
- 基线IAR CD4+ T细胞表现出异质的表型和转录基因特征,沿着成熟和激活轨迹形成集群.
- 一个特定的IAR CD4+ T细胞子集 (集群3),具有记忆表型,益炎性标记物 (BHLHE40,GM-CSF,TNF-α) 和与效应记忆细胞共享的TCR,与alefacept治疗个体的C-保存相反相关.
- 在接受安慰剂治疗的个体中没有观察到这种相关性.
结论:
- IAR CD4+ T细胞具有特定的益炎性记忆表型 (集群3) 可能作为T1D中alefacept治疗反应的预测生物标志物.
- 这些发现表明,有可能使用IAR CD4+ T细胞指导针对CD2通路和其他T细胞介导治疗的T1D治疗方法.
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