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溶酶体向纳米粒子聚合逆转免疫抑制瘤微环境癌症免疫疗法

Yumeng Xing^1,2,3, Jianhui Yang^1,2, Ao Peng^1,2

¹Research Center for Translational Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230032, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|October 3, 2024

概括

工程纳米粒子向癌细胞溶解体,导致胀和死亡. 这种方法增强了抗瘤免疫力,对先进的癌症疗法显示出有前途.

科学领域:

生物医学工程生物医学工程
纳米医学是一种纳米医学.
癌症治疗癌症治疗

背景情况:

目前的纳米医学研究优先考虑药物输送,忽视了纳米粒子的直接生理调节潜力.
由物质积累引发的 lysosomal 功能障碍激发了新的治疗策略.

研究的目的:

开发用于癌症治疗的溶酶体向聚合纳米粒子 (LTANP).
研究LTANP诱导癌细胞死亡和调节瘤免疫微环境的能力.

主要方法:

纳米粒子表面特性和粒子间相互作用的理性工程,用于向的溶酶体聚合.
在癌细胞中诱导 lysosomal 胀和膜通透 (LMP).
在黑色素瘤模型中评估LTANP诱导的免疫细胞死亡 (ICD) 和与PD-L1抗体的联合治疗.

主要成果:

在癌细胞溶解体内,LTANP证明了有效的瘤积累和选择性聚合.
纳米粒子聚合介导的LMP通过破坏自-溶酶体通路有效触发了ICD.
LTANP逆转了"冷"到"热"的瘤免疫力,增强T细胞反应并抑制瘤复发和转移,特别是当与PD-L1抗体结合时.

结论:

理性设计的纳米结构可以通过诱导溶酶体功能障碍直接对抗癌症.
通过触发ICD和增强抗瘤免疫力,LTANP为癌症治疗提供了一种新的策略.
这种方法为开发基于纳米粒子的先进癌症疗法提供了新的见解.

关键词:

在PD-1/PD-L1封锁中.癌症免疫疗法免疫疗法免疫性细胞死亡免疫性细胞死亡溶酶体膜透性透化纳米粒子聚合方式

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