对年龄依赖的人类T淋巴细胞恒温的系统综述和定量元分析
Victoria Kulesh1,2, Kirill Peskov1,2,3, Gabriel Helmlinger4
1Research Center of Model-Informed Drug Development, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.
Frontiers in immunology
|February 11, 2025
概括
这项研究量化了健康人群T淋巴细胞计数的年龄相关变化. 大多数T细胞种群随着年龄的增长而减少,而老年人的记忆T细胞增加,为免疫系统进化提供了洞察力.
科学领域:
- 免疫学 免疫学 免疫学
- 人体生理学 人体生理学
- 定量生物学 定量生物学
背景情况:
- T淋巴细胞对于适应性免疫非常重要.
- 了解T细胞平衡中与年龄相关的变化对于免疫健康至关重要.
- 现有的关于T细胞生命周期的动态数据是碎片化的.
研究的目的:
- 在健康人群中量化描述年龄依赖的T细胞平衡.
- 分析总T细胞和特定的T淋巴细胞亚群.
- 建立不同年龄组T细胞计数的参考值.
主要方法:
- 血液和器官中的T淋巴细胞计数的系统文献综述.
- 数字化和个人和汇总受试者数据的策划.
- 用年龄区间内的加权平均值进行年龄依赖评估的元分析.
主要成果:
- 分析了124项研究,包括20个T淋巴细胞亚群中的11,722个观察结果.
- 大多数T淋巴细胞数量随着年龄的增长而下降,特别是在生命早期.
- 记忆T淋巴细胞在50岁以上的个体中增加;早期生活显示向差异化较少的细胞转移.
结论:
- 提供了T细胞子集与年龄的动态的定量描述.
- 集成器官特定和系统级流细胞计数据.
- 作为了解健康和疾病中的免疫状态的参考.
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