装甲IL-36γCAR T细胞重新编程中性粒细胞以诱导内源性抗瘤免疫力
Yihan Zuo1, David J Vohwinkel1, Bowen Dong2
1Department of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA.
Cancer cell
|December 12, 2025
概括
甲素-36γ (IL-36γ) 装甲的CAR T细胞通过重编程中性粒细胞,增强抗瘤免疫力,并使后续瘤的排斥能够克服固体瘤的挑战.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 细胞疗法细胞疗法
背景情况:
- 化学抗原受体 (CAR) T细胞在治疗固体瘤方面面临挑战,包括抗原异质性和免疫抑制性瘤微环境 (TME).
- 之前的研究重点是CAR T细胞的内在特性,如细胞毒性和持久性,对它们对宿主抗瘤免疫力的影响进行了有限的探索.
研究的目的:
- 研究是否用IL-36γ增强CAR T细胞可以克服固体瘤的局限性.
- 为了确定IL-36γ修饰的CAR T细胞是否可以调节宿主免疫反应并提高治疗疗效.
主要方法:
- 用IL-36γ (IL-36γ装甲CAR T细胞) 设计的CAR T细胞.
- 在初级固体瘤模型中评估瘤根除.
- 评估了拒绝重新挑战的抗原阴性瘤的能力.
- 分析了TME调制和中性粒细胞子集重编程.
主要成果:
- IL-36γ 装甲的 CAR T 细胞根除了初级固体瘤,并导致随后的抗原阴性瘤挑战的拒绝.
- 这些修改后的CAR-T细胞重新编程了中性粒细胞,赋予它们瘤杀伤和抗原呈现功能.
- 这种重编程诱导了内源性T细胞识别超出CAR准的瘤抗原.
结论:
- 通过CAR T细胞对中性粒细胞的参与对于建立癌症免疫循环至关重要.
- 通过克服关键障碍,IL-36γ装甲提供了一种广泛适用的战略,以增强固体瘤的采用细胞疗法.
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