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空洞的尖的MnOx纳米载体放大了放射治疗诱导的热,以引起抗瘤免疫力

Yifan Zhang¹, Yuqian Liu¹, Bin Hu¹

¹State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Department of Oncology, The Fourth Affiliated Hospital of Soochow University, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China.

Journal of nanobiotechnology

|December 4, 2025

概括

这项研究引入了空洞的尖的氧化纳米载体,以增强放射治疗诱导的瘤细胞热致死,增强抗瘤免疫力并改善癌症治疗结果.

科学领域:

生物医学工程生物医学工程
纳米技术纳米技术
免疫学免疫学免疫学

背景情况:

放射治疗 (RT) 是癌症治疗的基石,但其激活抗瘤免疫力的能力有限.
炎症性细胞死亡的Pyroptosis显示出增强抗瘤免疫反应的潜力.

研究的目的:

开发新型纳米载体,以增强RT诱导的热和抗瘤免疫力.
为了研究纳米载体,RT和热致死诱导的协同效应.

主要方法:

开发空洞的尖氧化 (HSpiM) 纳米载体.
将一个ESCRT抑制剂 (BAPTA-AM) 封装成HSpiM (BA@HSpiM).
评估HSpiM和BA@HSpiM与RT结合用于诱导热,ROS产生和免疫反应.

主要成果:

HSpiM纳米载体促进 lysosomal 破裂和 ROS 生产,协同激活 NLRP3 炎症体.
自抑制放大了热亡,BA@HSpiM破坏了膜修复,增强了热亡.
通过BA@HSpiM引发的RT诱导的烧引起了强大的抗瘤免疫力,抑制了转移,并产生了免疫记忆.

结论:

用BA@HSpiM纳米载体诱导瘤烧灭是一种增强RT疗效的有希望的策略.
这种方法可以改善局部瘤控制,并激活全身抗瘤免疫反应.
这些发现表明了改善癌症治疗结果的新治疗途径.

关键词:

抗瘤免疫力抗瘤免疫力氧化物氧化物热灭菌的发生.辐射疗法辐射疗法

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