素-1-向化学抗原受体T细胞在控制免疫能力强的主体固体瘤方面是有效和安全的
Ru Zhou1, Shu-Ta Wu1,2, Mahboubeh Yazdanifar1,3
1Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC.
Journal of immunotherapy (Hagerstown, Md. : 1997)
|January 25, 2024
概括
针对瘤粘素-1 (tMUC1) 的工程化仿真抗原受体 (CAR) T细胞有效地减少了小鼠的固体瘤. 这种CAR T细胞疗法显示出有希望的有效性与最小的毒性,表明治疗表达tMUC1的癌症的潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 生物技术是生物技术.
背景情况:
- 化学抗原受体 (CAR) T细胞疗法在固体上皮质瘤中表现出有限的成功.
- 临床前研究经常使用免疫受损的模型,可能缺少与免疫相关的疗效和毒性.
研究的目的:
- 为了设计和测试针对人体素-1 (tMUC1) 的瘤形式的同基因小鼠CAR T细胞.
- 在表达人类MUC1的免疫能力较强的小鼠模型中评估MUC1 CAR T细胞的疗效和毒性.
主要方法:
- 工程合成的突变性小鼠CAR T细胞针对tMUC1.
- 在免疫能力强的小鼠模型中测试了MUC1 CAR T细胞 (PyVMT×MUC1.Tg和正型胰腺癌模型).
- 在实验室评估癌细胞系消除和体内瘤进展,转移,存活率和毒性.
主要成果:
- 在实验室中,MUC1 CAR T细胞有效地消除了小鼠胰腺癌和乳腺癌细胞系.
- 在体内,MUC1 CAR T细胞减缓了乳腺瘤的进展,预防了肺转移,并延长了MMT小鼠的存活时间.
- 治疗导致了最小的短期/长期毒性,包括暂时的肝脏影响,但没有脏毒性,并且没有显著的体重减轻或行为变化.
结论:
- 针对tMUC1的CAR T细胞在免疫能力强的模型中显示出对固体瘤的显著疗效.
- 该疗法相对安全,副作用可控.
- 这些发现支持tMUC1 CAR T细胞进一步开发用于治疗各种固体瘤.
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