在接触结核病和最近结核病感染时,QuantiFERON-TB Gold Plus CD8+ T 细胞的反应
Cynthia Bin-Eng Chee1, KhinMar Kyi-Win2, Shera Tan1
1Department of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore, Singapore.
Microbiology spectrum
|October 20, 2025
概括
量子费隆-结核病黄金加 (QFT-Plus) 试验表明,CD8+ T细胞反应可以预测结核病 (TB) 疾病和最近的结核病感染. 在结核病患者和严格的QFT-Plus转换患者中观察到更高的CD8+反应.
科学领域:
- 免疫学 免疫学 免疫学
- 传染性疾病 传染性疾病
- 结核病研究 结核病研究
背景情况:
- 2016年推出的QuantiFERON-TB Gold Plus (QFT-Plus) 试验旨在通过结合CD8+ T细胞反应来改善结核病感染 (TBI) 的检测.
- CD8+ T 细胞对于宿主对 Mycobacterium 结核病的反应至关重要,有可能识别受感染的细胞.
研究的目的:
- 研究通过QFT-Plus测量的CD8+T细胞反应与结核病或最近TBI的存在之间的关联.
- 评估QFT-Plus CD8+ T细胞反应作为结核病和最近感染的标记物的有用性.
主要方法:
- 在新加坡结核病接触诊所 (2018年1月 - 2018年10月) 查的接触者的QFT-Plus结果的回顾性分析.
- 使用TB2-TB1干扰素-马 (IFN-γ) 差异评估CD8+T细胞反应,值为>0.6 IU/mL.
- 在结核病,严格转换和其他TBI状态的群体之间比较了CD8+反应比例和IFN-γ值的中位数.
主要成果:
- 与其他 (12.6%) 相比,与结核病接触者 (28.8%) 和严格转换者 (23.3%) 的比例显著更高,显示出CD8+ T细胞反应.
- 在患有结核病 (0.13 IU/mL) 和严格转换器 (0.17 IU/mL) 的个人中,TB2-TB1 IFN-γ 值的中位数明显高于其他患者 (0.06 IU/mL).
结论:
- 通过QFT-Plus检测测量的CD8+ T细胞反应与结核病和严格的QFT-Plus转化有关.
- 这一发现支持QFT-Plus CD8+反应作为生物标志物的潜力,用于识别需要进一步结核病评估或预防治疗的个体.
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