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Huantong Wu¹, Guangji Zhang¹, Zhongfeng Liu¹

¹Cell Therapy Center, Beijing Institute of Geriatrics, Xuanwu Hospital Capital Medical University, National Clinical Research Center for Geriatric Diseases, and Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, China; Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China.

|June 21, 2024

概括

结合GD2和GPC2特异性CAR-T细胞,由选择性单克隆抗体激活,增强抗瘤活性和耐高风险神经母细胞瘤免疫治疗的持久性.

科学领域:

免疫治疗是一种免疫疗法.
在瘤学瘤学.
儿科恶性瘤儿童恶性瘤

背景情况:

卡特-T细胞疗法在固体瘤中面临挑战,例如高风险神经母细胞瘤 (HRNB),原因是抗原异质性,T细胞持久性差,以及疲劳.
目前的单抗原CAR-T方法不足以有效治疗HRNB.

研究的目的:

开发一种针对多个瘤相关抗原 (TAA) 的新型组合CAR-T细胞策略,以提高HRNB的疗效.
为了增强CAR-T细胞的生物活性,持久性和抗瘤细胞毒性.

主要方法:

具有选择性域 (sCAR) 的工程 GD2 特定和 GPC2 特定的仿真抗原受体 (CAR).
使用选择性单克隆抗体 (SmAb) 刺激的sCAR-T细胞在体外和体内评估增殖和细胞毒性.
评估单一和组合sCAR-T细胞疗法的抗瘤作用和细胞机制.

主要成果:

SmAb介导的刺激增强了sCAR-T细胞的增殖和中央记忆T细胞的产生.
组合疗法证明了长期延长的抗瘤活性,并在HRNB模型中克服异质TAA表达.
在体内研究显示,通过caspase-3/PARP诱导的亡以及抑制促进瘤的细胞因子.

结论:

用sCAR-T细胞对多个TAA的联合向是固体瘤免疫治疗的有前途的策略,特别是在HRNB.
这种方法增强了CAR-T细胞的持久性,克服了抗原异质性,提供了潜在的新疗法途径.

关键词:

抗原异质性的异质性仿制性抗原受体T细胞的T细胞.组合疗法治疗组合治疗.分解化物 2 分解化物 2 格利皮坎-2的使用方法高风险神经母细胞瘤

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