免疫原性细胞死亡
光热治疗
线粒体
未折叠蛋白反应
光动力疗法
内质网
癌细胞
程序性细胞死亡
癌症研究
材料科学
活性氧
细胞凋亡
生物物理学
癌症
细胞生物学
化学
生物
纳米技术
生物化学
遗传学
有机化学
作者
Shaozhe Wang,Yuxin Guo,Xinping Zhang,Hui‐Heng Feng,Shun‐Yu Wu,Ya‐Xuan Zhu,Hao‐Ran Jia,Qiu‐Yi Duan,Shijie Hao,Fu‐Gen Wu
标识
DOI:10.1002/adfm.202303328
摘要
Abstract Induction of immunogenic cell death (ICD) represents a robust therapeutic strategy for cancer treatment. However, only a few ICD inducers are currently available and many of them take effect based on traditional endoplasmic reticulum (ER) stress rather than mitochondrial stress. Besides, mitochondrion is closely related to ER and drug delivery via mitochondrial targeting usually shows a higher efficiency and cytotoxicity than that via ER targeting, which inspires to explore the ICD effect of cancer cells through mitochondrial stress. Herein, a mito‐missile that can realize not only mitochondria‐targeted photodynamic therapy (PDT)/mild‐temperature photothermal therapy (MTPTT) but also ICD‐induced cancer immunotherapy is constructed. The mito‐missile (termed DIH) is prepared by coating dc‐IR825 (a mitochondrion‐targeting cyanine dye)‐loaded polyamidoamine dendrimer with hyaluronic acid. dc‐IR825 can precisely target mitochondria and produce reactive oxygen species (ROS) and mild heat upon near‐infrared (NIR) light irradiation, inducing mitochondrial damage and mitochondrial stress‐caused enhanced ICD. By combining PDT, MTPTT, and ICD‐induced immunotherapy, the DIH mito‐missile can efficiently inhibit tumor growth and even eradicate tumors. This study develops a dendrimer‐based nanoplatform for realizing mitochondrion‐acting PDT/MTPTT as well as mitochondrial stress‐induced potentiated ICD, which may provide a guideline for designing effective ICD inducers in the future.
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