单细胞转录组学揭示了结核病患者红色素原体细胞的表型和功能变化
Hao Zhang1, Yan Cao2, Ling Yang3
1Senior Department of Tuberculosis, Chinese PLA General Hospital, Beijing, 100091, China; Senior Department of Oncology, The Fifth Medical Center of PLA General Hospital, Beijin, 100071, China.
Tuberculosis (Edinburgh, Scotland)
|February 24, 2026
概括
结核病 (TB) 贫血涉及具有独特代谢和信号特征的独特红色素原生细胞 (EPC). 这项研究揭示了它们与免疫细胞的相互作用,为结核病提供了潜在的诊断生物标志物.
科学领域:
- 免疫学 免疫学 免疫学
- 血液学 血液学 血液学
- 传染性疾病 传染性疾病
背景情况:
- 贫血是结核病 (TB) 的常见并发症,与不良结果有关.
- 红色素原生细胞 (EPC) 在结核病相关性贫血中的作用尚不清楚.
研究的目的:
- 研究结核病不同阶段 (潜伏性,活跃性,扩散性) 和组织部位的EPC异质性.
- 探索结核病中EPC和免疫细胞之间的相互作用.
- 确定结核病诊断和预后的潜在生物标志物.
主要方法:
- 从健康对照组和结核病患者的外周血液单核细胞 (PBMC) 的单细胞转录组分析.
- 对标有18F-FDG的结核病肺组织进行分析.
- 生物信息分析以确定EPC亚群和信号通路.
主要成果:
- 在转移性结核病中鉴定出不同的EPC亚群 (EPC_DTB),其代谢和基因表达发生了变化.
- 通过特定途径 (ANNEXIN,GALECTIN,MIF) 揭示了EPC和免疫细胞 (巨细胞,树突细胞,单细胞) 之间的双向信号交互.
- 在结核病肺病变中发现了特定疾病的EPC集群,并使用EPC特征基因开发了潜在结核病的预测模型.
结论:
- 在结核病的各个阶段和组织中,EPCs表现出显著的异质性,在贫血和免疫调节中发挥作用.
- 在结核病发病过程中,EPC与免疫细胞的相互作用至关重要.
- 确定了结核病相关性贫血的潜在诊断生物标志物和治疗点.
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