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一个超声触发的刺痛途径纳米激动剂,用于增强化疗诱导的免疫细胞死亡

Ye Tian^1,2, Hao Tian^1,2, Bei Li^1,2

¹Cancer Center and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau SAR, 999078, China.

Small (Weinheim an der Bergstrasse, Germany)

|January 15, 2024

概括

这项研究介绍了一种新的超声波触发的纳米激动剂,用于化疗免疫治疗. 纳米激动剂通过控制免疫反应和促进免疫细胞死亡 (ICD) 来增强癌症治疗.

科学领域:

生物医学工程生物医学工程
纳米技术纳米技术
癌症免疫疗法癌症免疫疗法

背景情况:

化疗可以通过免疫细胞死亡 (ICD) 诱导瘤免疫疗法,但控制免疫反应强度仍然是一个挑战.
开发针对性药物输送系统,以响应外部刺激,为增强癌症治疗提供了一个有希望的方法.

研究的目的:

合成可控制的超声波触发化学免疫疗法纳米激剂,用于调节癌症诱导的免疫反应.
研究纳米激动剂促进ICD和抗原特异性T细胞免疫的作用机制.

主要方法:

一个双响应 (pH和ROS) 的纳米激剂 (PZnO@DOX) 用PEG-多,氧化 (ZnO) 和多克索鲁比 (DOX) 来合成.
超声波 (US) 辐射被用于通过声动疗来触发ROS生成并加速药物释放.
该研究分析了双链DNA (dsDNA) 的释放和治疗后STING通路的激活.

主要成果:

PZnO@DOX纳米粒子展示了智能分解,在酸性条件下释放DOX和离子.
美国的辐射有效地产生了ROS和增强了药物释放,导致细胞dsDNA释放.
治疗激活了STING通路,促进树突细胞成熟,增强DOX诱导的ICD和T细胞免疫力.

结论:

开发的超声触发纳米激活剂为化学免疫疗法提供了可控制的方法.
这种方法有效调节化疗诱导的免疫反应,通过ICD和T细胞激活增强抗瘤免疫力.

关键词:

化疗-免疫疗法化疗-免疫疗法免疫性细胞死亡效应的影响金属氧化物纳米粒子金属氧化物纳米粒子干扰素基因通路的刺激剂.超声波超声波是指超声波的使用.

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