基于德克斯的T细胞扩张纳米颗粒用于制造具有增强疗效的CAR T细胞
Tao Zheng1, Keerthana Ramanathan1, Maria Ormhøj1
1Experimental and Translational Immunology Section, Department for Health Technology, Technical University of Denmark, Lyngby, Denmark.
Nature communications
|January 20, 2026
概括
T-Expand纳米颗粒通过改善T细胞扩张,持久性和抗瘤活性来增强仿真抗原受体 (CAR) T细胞疗法. 这种生物相容的平台简化了制造过程,并提高了CAR T细胞在癌症治疗中的疗效.
科学领域:
- 免疫学 免疫学 免疫学
- 生物技术是生物技术.
- 在瘤学瘤学.
背景情况:
- 采用T细胞疗法,特别是仿真抗原受体 (CAR) T细胞疗法,对各种癌症具有前景.
- 目前的CAR T细胞制造涉及T细胞激活和扩张,这可能会对T细胞适应性和持久性产生负面影响.
- 现有的扩张方法,如微珠,可能需要额外的去除步骤,并可能影响T细胞质量.
研究的目的:
- 开发和评估一种新的T细胞扩张平台,T-Expand,用于CAR T细胞治疗.
- 评估T-Expand对T细胞激活,扩张,健康和体内疗效的影响.
- 为了比较T-Expand与商业的基于微珠的扩展方法.
主要方法:
- 开发基于德克斯的纳米颗粒与抗CD3和抗CD28抗体结合 (T-Expand).
- 在T-Expand治疗后评估T细胞扩张效率和T细胞表型.
- 在体外评估工程 CD19 CAR T 细胞的增殖能力,细胞毒性和持久性.
- 在小鼠淋巴瘤模型中对CAR T细胞疗法的有效性进行了体内测试.
主要成果:
- T-Expand纳米粒子诱导了强大的多克隆T细胞扩张,相当于商业微珠.
- 用T-Expand进行工程的CAR T细胞在体外表现出增强的增殖,细胞毒性和持久性.
- 活体研究显示强烈的抗淋巴瘤活性,在降低的CAR T细胞剂量下实现完整的瘤清除.
- T-Expand证明了生物相容性,没有观察到毒性,并且消除了需要扩张后去除步骤的需要.
结论:
- 在CAR T细胞制造中,T-Expand作为T细胞激活和扩张的有效和生物相容的平台.
- 这种方法简化了生产过程,同时提高了CAR T细胞的持久性和功能.
- 在癌症治疗中,T-Expand具有显著的潜力,可以提高CAR T细胞治疗的临床疗效.
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