酸基于阻塞的化疗免疫疗法,具有癌细胞化学敏感性和抗瘤免疫反应协同作用
Xiang Zhang1, Zi-Yi Li1, Jia-Heng Xiao1
1State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Chemical Biology Center, Peking University, Beijing, 100191, China.
Advanced healthcare materials
|June 28, 2024
概括
这项研究引入了新型纳米粒子 (NCP-STI),可以阻断癌症.
科学领域:
- 在瘤学瘤学.
- 纳米技术纳米技术
- 免疫治疗是一种免疫疗法.
背景情况:
- 免疫检查点封锁 (ICB) 在许多癌症患者中显示出有限的疗效.
- 癌细胞经常过度表达酸甘氨酸,促进免疫逃避和疾病进展.
- 向酸糖免疫检查点提供了一个新的治疗途径.
研究的目的:
- 开发新型纳米粒子 (NCP-STI) 来破坏酸糖免疫检查点.
- 调查NCP-STI抑制癌细胞化和增强化疗的能力.
- 为了评估NCP-STI和gemcitabine (Gem) 的联合化疗免疫疗法的疗效.
主要方法:
- 自组装的核心外纳米级协调聚合物纳米颗粒 (NCP) 装载有基转移酶抑制剂 (STI).
- 将NCP-STI注射到癌细胞以剥离sianoglycans并抑制CNT1.1的sianylation.
- 在小鼠瘤模型中使用NCP-STI和gemcitabine (Gem) 的组合疗法.
主要成果:
- NCP-STI有效地从癌细胞中去除了sialoglycans,破坏了 Siglec-sialic 酸检查点,独立于抗体.
- NCP-STI增强了凝的细胞内积累,并促进了凝诱导的免疫细胞死亡 (ICD).
- 结合NCP-STI和Gem,对各种小鼠瘤和肺转移有显著的抗瘤疗效.
结论:
- NCP-STI代表了一种新的基于小分子的化学免疫疗法方法.
- 通过NCP-STI阻塞的酸协同增强化疗敏感性和抗瘤免疫反应.
- 这一策略通过结合化学和免疫疗法,为癌症治疗提供了一个有希望的新途径.
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