减少的T细胞干细胞是T17扩张和移植接受者的移植功能障碍的基础
Chang Liu1, Hao Jiang2, Andu Zhu3
1Department of Urology, Suzhou Ninth People's Hospital, Soochow University, Suzhou, China.
Frontiers in genetics
|June 30, 2025
概括
减少CD4+T细胞干细胞和扭曲的Th17细胞平衡有助于移植功能障碍. 这些免疫特征可以作为生物标志物和治疗点,以改善移植的存活率.
科学领域:
- 免疫学 免疫学 免疫学
- 移植生物学 移植生物学
- 基因组学就是基因组学.
背景情况:
- 末期病 (ESRD) 是一个日益严重的全球健康问题.
- 移植提供了更好的生存率,但受到长期移植损失的限制,主要是由于免疫媒介排斥.
- 了解免疫机制区分稳定和受损代移植功能至关重要.
研究的目的:
- 为了确定与脏全移植功能障碍相关的免疫细胞概况和分子机制.
- 划分免疫特征,区分接受者与稳定与受损的移植后移植功能.
主要方法:
- 单细胞RNA测序来自正常或受损功能移植患者的外周血液单核细胞.
- 使用mRNAsi和EREG_mRNAsi指数对CD4+T细胞干细胞的量化.
- 血统轨迹的重建和联结体-受体相互作用的推断.
- 在独立的散装RNA-seq队列中使用差异表达和WGCNA进行验证.
主要成果:
- 移植功能障碍与Th17细胞增加,Treg细胞减少和CD4+T细胞干细胞减少有关 (下方的mRNAsi/EREG_mRNAsi).
- 免疫细胞的轨迹倾向于Th17分化,并且骨髓细胞对中性细胞的S100A8 / A9-TLR4信号增强.
- 八个枢纽基因 (例如,S100A4) 与低干度和不良结果相关,涉及移植损伤中的细胞形态发生和代谢途径.
结论:
- 减少CD4+T细胞干细胞,Th17-主导的两极分化和S100A4-介导的中性粒细胞招募与移植异能有关.
- 茎状指数,Th17/Treg平衡和S100-TLR4轴代表了监测移植健康的潜在生物标志物.
- 这些发现突出了新的治疗目标,以保护全移植完整性和延长移植存活时间.
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