老化CAR T细胞可以逆转老化相关的病态
Corina Amor1,2, Judith Feucht3,4, Josef Leibold2
1Louis V. Gerstner Jr Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Nature
|June 20, 2020
概括
化抗原受体 (CAR) 的T细胞向泌尿酸酶类型的血激活受体 (uPAR) 有效地消除衰老的细胞. 这种老化方法显示了与年龄相关的疾病的治疗潜力,并在临床前模型中改善了生存率.
科学领域:
- 细胞生物学
- 免疫疗法
- 老龄化研究
背景情况:
- 细胞衰老是一个稳定的细胞循环停止的状态, 在瘤抑制和伤口愈合中起着双重作用.
- 异常积累的衰老细胞会导致慢性炎症,并导致与年龄相关的疾病,
- 在临床前研究中,消除衰老细胞 (衰老) 已显示出改善疾病症状和延长寿命的前景.
研究的目的:
- 研究作为老化剂的仿真抗原受体 (CAR) T 细胞的治疗潜力.
- 确定CAR T细胞介导消除的老化细胞的具体目标.
- 在老化相关疾病的临床前模型中评估PAR特异性CAR T细胞的疗效.
主要方法:
- 在老化细胞上广泛诱导的细胞表面标记物的识别.
- 泌尿酸酶类型血原激活受体 (uPAR) 特定的CAR T细胞的发展和特征.
- 在肺腺癌和肝纤维化模型中对PAR特异性CAR T细胞进行体外和体内测试.
主要成果:
- UPAR被确定为细胞表面蛋白质,在细胞衰老过程中被广泛诱导.
- 在试验室和体内,PAR特异性的CAR T细胞显示出有效的衰老细胞剥离.
- 在药物诱导肺腺癌的小鼠中,针对UPAR的CAR T细胞治疗延长了生存时间,并在肝纤维化模型中恢复了组织平衡.
结论:
- uPAR是衰老细胞的一个可行的治疗点.
- 针对PAR的老化CAR T细胞代表了与衰老相关的疾病的有前途的治疗策略.
- 这种方法可以治疗从癌症并发症到慢性纤维化疾病的各种疾病.
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