携带CD28的NECTIN-4重定向的T细胞抗原结合剂T细胞对固体瘤表现出优异的抗瘤反应
Cheng Wei1, Xin Huang2, Tianlong Xu2
1Zhejiang Provincial Key Laboratory of Aging and Neurological Disorder Research, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
Frontiers in immunology
|December 30, 2024
概括
工程T细胞抗原合剂 (TAC) 针对NECTIN-4的T细胞,加上CD28联合刺激,显示增强的抗瘤活性. 这种NECTIN-4 TAC28-T细胞疗法为固体瘤提供了一个有希望的,更安全的选择.
科学领域:
- 免疫治疗是一种免疫疗法.
- 细胞疗法 细胞疗法
- 在瘤学瘤学.
背景情况:
- T细胞抗原结合剂 (TAC) T细胞激活T细胞对瘤的反应,但在固体瘤的有效性方面面临挑战,包括透,持久性和毒性.
- 目前的细胞免疫疗法与固体瘤的透和持续活动作斗争,限制了它们的治疗潜力.
研究的目的:
- 通过开发一种与CD28共同刺激的NECTIN-4向变异来增强TAC T细胞对固体瘤的抗瘤疗效.
- 为了比较新型NECTIN-4 TAC28-T细胞与原始NECTIN-4 TAC-T细胞的体外和体内抗瘤活性.
主要方法:
- 产生一种新型的NECTIN-4向的TAC T细胞变体 (NECTIN-4 TAC28-T),包含CD28细胞质区域.
- 在体外和体内对NECTIN-4 TAC-T细胞和NECTIN-4 TAC28-T细胞的评估,包括激活,增殖和抗瘤作用的评估.
- 使用NECTIN-4蛋白质涂层磁珠激活NECTIN-4 TAC28-T细胞.
主要成果:
- 当NECTIN-4 TAC28-T细胞被NECTIN-4珠刺激时,它们表现出有效的激活和增殖.
- 集成的CD28共刺激域显著增强了NECTIN-4 TAC28-T细胞的激活和增殖.
- 与NECTIN-4 TAC28-T细胞相比,NECTIN-4 TAC28-T细胞在体外和体内模型中表现出优异的抗瘤作用.
结论:
- 在NECTIN-4 TAC28-T细胞中,对于NECTIN-4过度表达的固体瘤,NECTIN-4 TAC28-T细胞是一个强大的细胞疗法候选者.
- 结合CD28协同刺激可提高TAC T细胞的疗效,有可能克服固体瘤治疗的局限性.
- 这种工程细胞疗法显示了对固体瘤的安全和有效治疗的承诺,其中释放的细胞因子最小.
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