接种BCG疫苗会在Vδ1/3 T细胞中诱导抗菌效应器功能,这些T细胞与预防结核病有关
Megan D Maerz1, Mohau S Makatsa2, Allison N Bucsan3
1Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA; Molecular Medicine and Mechanisms of Disease Program, Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA.
Cell reports. Medicine
|January 13, 2026
概括
Vδ1/3 T细胞通过BCG疫苗接种被激活,并在肺部积累. 这些细胞发展出细胞毒性和促炎功能,可能有助于对结核菌菌 (Mtb) 的保护性免疫力.
科学领域:
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
- 疫苗学 疫苗学 疫苗学
背景情况:
- γδ T 细胞,特别是 Vδ1/3 T 细胞受体类型,存在于粘膜部位.
- 它们在预防Mycobacterium tuberculosis (Mtb) 方面的具体作用尚不清楚.
研究的目的:
- 为了研究BCG疫苗接种后Vδ1/3 T细胞的功能.
- 确定它们在对MTB的免疫反应中的作用.
主要方法:
- 多模式单细胞RNA测序,质量细胞计和流细胞计.
- 在BCG接种疫苗后对人类婴儿和的γδ T细胞进行分析.
主要成果:
- 在婴儿中,BCG疫苗接种诱导了Vδ1/3 T细胞的克隆扩张和分化,使其成为Mtb反应性细胞毒性作用因子细胞.
- 在身上,BCG促进了气道丰富的Vδ1/3 T细胞的促炎和细胞毒性反应.
- 气道Vδ1/3 T细胞细胞因子表达与对抗Mtb挑战的保护相关.
结论:
- Vδ1/3 T细胞通过BCG疫苗接种被激活并迁移到肺部.
- 这些细胞表现出增强的细胞毒性和抗炎功能,这表明它们在BCG介导的保护中发挥了作用.
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