在现场化疗免疫治疗水凝引起免疫细胞死亡,并唤起有效的抗瘤免疫反应
Qin Liu1, Rui Xu2, Jingwen Shen2
1The Comprehensive Cancer Centre, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China. liuqin@nju.edu.cn.
Journal of translational medicine
|April 9, 2024
概括
这项研究开发了一种可注射的水凝,将化疗和免疫疗法结合起来,用于局部癌症治疗. 这种新型的化疗免疫治疗水凝有效地抑制了瘤生长,并激活了抗瘤免疫力,系统毒性最小.
科学领域:
- 生物医学工程 生物医学工程
- 癌症研究 癌症研究
- 免疫治疗是一种免疫疗法.
背景情况:
- 化学免疫疗法通过诱导免疫细胞死亡和激活抗瘤免疫力,为癌症治疗提供了潜在的潜力.
- 化疗的全身毒性和免疫抑制性瘤微环境对临床应用提出了重大挑战.
研究的目的:
- 开发一种可注射的水凝系统,用于局部同时提供化疗和免疫疗法.
- 在临床前癌症模型中评估化疗免疫治疗水凝的抗瘤疗效和免疫反应.
主要方法:
- 一种可注射的甲基酸盐水凝 (ALG) 被制成,以封装纳米颗粒素结合的帕克利塔塞尔 (Nab-PTX) 和R837,一种免疫刺激剂.
- 建立了肝细胞癌和乳腺癌的小鼠模型,并且携带瘤的小鼠接受了R837/Nab-PTX/ALG水凝的周周注射.
- 评估了抗瘤疗效,免疫反应和瘤微环境调节.
主要成果:
- 化疗免疫治疗水凝显示持续释放,有效杀死瘤细胞并抑制瘤生长,降低了全身毒性.
- 周注射显著增强了免疫细胞死亡,导致效应记忆T细胞透率增加3.30倍.
- 该疗法提高了瘤微环境中与免疫反应相关的20个生物过程的调节,显示出对肝细胞癌和乳腺癌的有效性.
结论:
- 开发的化疗免疫治疗水凝为局部癌症治疗提供了一个有希望的策略.
- 这种方法显示出通过结合化疗和免疫治疗来克服治疗局限性的临床转化潜力.
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