新型PAP向的CAR-T疗法通过CoupledCAR方法提高了抗瘤疗效
Zhiyuan Cao1, Chengfei Pu1, Xianyang Jiang1
1Innovative Cellular Therapeutics, Shanghai, China.
Journal for immunotherapy of cancer
|May 31, 2025
概括
这项研究确定了前列腺酸酸酶 (PAP) 作为前列腺癌化学抗原受体 (CAR) -T细胞治疗的特定标. 新的CoupledCAR平台增强了CAR-T细胞扩张和对抗固体瘤的功能,而不需要瘤抗原.
科学领域:
- 在瘤学瘤学.
- 免疫治疗是一种免疫疗法.
- 癌症生物学 癌症生物学
背景情况:
- 用CAR-T细胞治疗固体瘤面临挑战,原因是瘤特异性标有限,CAR-T细胞扩张/功能差.
- 目前用于前列腺癌的CAR-T疗法缺乏特异性,增加了安全风险.
- 前列腺癌是全球重要的健康问题,需要改进治疗策略.
研究的目的:
- 为了确定前列腺癌CAR-T治疗的特定目标.
- 开发一种用于固体瘤的新型CAR-T细胞扩张平台.
- 评估新治疗方法的疗效和机制.
主要方法:
- 在前列腺癌中使用癌症基因组图谱和免疫组织化学分析了PAP表达.
- 从人类单链抗体库中生成和选择PAP特异性抗体.
- 构建了针对PAP的CAR-T细胞,并评估了体外和体内的抗瘤疗效,包括scRNA-Seq分析.
主要成果:
- PAP 特别表达在前列腺癌细胞中,而不是在其他组织中.
- PAP CAR-T细胞在体外和体内都表现出显著的抗瘤疗效.
- 结合CAR系统有效地扩展了PAP CAR-T细胞,促进了类似记忆的状态,并通过辅助刺激和细胞因子信号增强了抗瘤活性.
结论:
- 前列腺酸酶 (PAP) 是前列腺癌中CAR-T治疗的经过验证的特定标.
- 结合CAR平台技术使瘤向CAR-T细胞的抗原独立扩张成为可能.
- 这种方法增强了CAR-T细胞对固体瘤的功能,提供了一个有前途的新疗法策略.
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