T cells in space and time

IF 27.6 1区 医学 Q1 IMMUNOLOGY
Nicholas J. Bernard
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引用次数: 0
T细胞在空间和时间上的变化
追踪人体组织中免疫细胞的持久性或“年龄”尤其困难。现在发表在《免疫》杂志上的数据是使用回顾性放射性碳(14C)出生年代测定法收集的,以克服这一挑战。这种方法利用了第二次世界大战后核试验导致的大气中碳- 14的峰值(以及随后的衰减)。研究人员将这种方法与Ki67表达的评估结合起来,观察了138名年龄在2-97岁之间的已故器官捐献者的记忆T细胞。他们收集了血液、淋巴结、肺、肠和脾脏,并使用RNA和全基因组亚硫酸氢盐测序对分离的循环和组织记忆T细胞进行了后续分析。记忆T细胞在血液和粘膜部位的寿命一般为1-2年,但在脾脏的寿命为3 - 10年。数据还显示,尽管随着年龄的增长,组织驻留细胞的低甲基化程度更高,但循环记忆T细胞上的衰老标记比组织驻留T细胞上的衰老标记更普遍,这与组织驻留细胞可能更能抵抗衰老影响的观点一致。原参考文献:豁免https://doi.org/10.1016/j.immuni.2025.07.001 (2025)
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Nature Immunology
Nature Immunology 医学-免疫学
CiteScore
40.00
自引率
2.30%
发文量
248
审稿时长
4-8 weeks
期刊介绍: Nature Immunology is a monthly journal that publishes the highest quality research in all areas of immunology. The editorial decisions are made by a team of full-time professional editors. The journal prioritizes work that provides translational and/or fundamental insight into the workings of the immune system. It covers a wide range of topics including innate immunity and inflammation, development, immune receptors, signaling and apoptosis, antigen presentation, gene regulation and recombination, cellular and systemic immunity, vaccines, immune tolerance, autoimmunity, tumor immunology, and microbial immunopathology. In addition to publishing significant original research, Nature Immunology also includes comments, News and Views, research highlights, matters arising from readers, and reviews of the literature. The journal serves as a major conduit of top-quality information for the immunology community.
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