与年龄相关的尼古丁胺胺腺因二核酸下降驱动CAR-T细胞衰竭
Helen Carrasco Hope1,2, Jana de Sostoa3,4,5,6, Pierpaolo Ginefra7,8
1Department of Oncology, University of Lausanne, Lausanne, Switzerland. helen.carrascohope@unil.ch.
Nature cancer
|May 20, 2025
概括
衰老会损害CAR T细胞疗法,因为尼古丁胺氨酸二核酸 (NAD) 枯竭导致线粒体功能障碍. 恢复NAD水平可以增强老年人CAR T细胞功能,改善癌症治疗结果.
科学领域:
- 免疫学 免疫学 免疫学
- 老年学是指老年学的学科.
- 癌症生物学 癌症生物学
背景情况:
- 化学抗原受体 (CAR) T细胞疗法在癌症治疗方面表现有前途.
- 存在一些障碍,限制了CAR T细胞治疗的应用和有效性.
- 衰老对CAR T细胞结局的影响在很大程度上是未知的.
研究的目的:
- 研究老化如何影响CAR T细胞功能.
- 探索线粒体功能障碍和NAD代谢在与年龄相关的CAR T细胞损伤中的作用.
- 评估改善老年人CAR T细胞治疗的策略.
主要方法:
- 从老年和年轻的雌性小鼠中生成了CAR T细胞.
- 在CAR T细胞中评估了线粒体功能和NAD水平.
- 评估了CAR T细胞的体内功能.
- 人类数据分析将年龄和NAD代谢与CAR T细胞治疗响应度相关联.
- 针对NAD通路的目标是恢复CAR T细胞功能.
主要成果:
- 来自老老小鼠的CAR T细胞表现出与NAD枯竭相关的线粒体功能障碍.
- 衰老导致干状性质减少,并损害了CAR T细胞的体内功能.
- 人类数据表明,年龄和NAD代谢都会影响CAR T细胞治疗反应.
- 准NAD途径成功地恢复了老年人的CAR T细胞中的线粒体健康和功能.
结论:
- 衰老是成功的CAR T细胞反应的一个重要限制因素.
- NAD 枯竭有助于与年龄相关的 CAR T 细胞功能障碍.
- 恢复NAD代谢是一种有希望的策略,可以提高CAR T细胞治疗在老年人群中的疗效.
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