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H₂S-可激活BiFeO_{3-x纳米催化剂用于铁死驱动的癌症免疫治疗}

Jinzhe Liang¹, Xianliu Luo², Ya-Qian Shi²

¹MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Anti-Infective Drug Discovery and Development, Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, P. R. China.

|February 2, 2026

概括

研究人员开发了一种新的半导体 - - 木铁酸盐 (BiFeO3-x) - - 以使用瘤气体控制铁亡 (一种细胞死亡形式). 这种H2S活性材料将"冷"瘤转化为"热"瘤,增强癌症免疫疗法.

科学领域:

催化纳米医学是一种催化纳米医学.
半导体材料科学半导体材料科学
免疫瘤学免疫瘤学

背景情况:

通过材料氧化还原动力学控制铁灭对于催化纳米医学至关重要.
非固体测量双铁酸盐 (BiFeO_3-x) 作为一种新型半导体剂正在被探索.
瘤微环境经常表现出"寒冷"的特征,限制了免疫反应.

研究的目的:

开发一种H2S可激活的半导体,用于空间时间控制的免疫性铁死.
研究BiFeO_3-x在触发铁亡和免疫重塑中的机制.
建立用于癌症治疗中的可氧化还原可编程纳米材料的设计框架.

主要方法:

采用非静态测量木铁酸盐 (BiFeO_3-x) 被硫化 (H₂S) 激活.
采用芬顿式反应和光热效应在808nm激发下用于产生反应性氧物种.
进行*in vivo*研究,使用光声学指导和质细胞计进行免疫分析.

主要成果:

在H₂S的存在下,BiFeO_{3-x转化为Bi₂S₃,释放Fe²⁺以诱导脂质过氧化.}
该材料放大了反应性氧物种的产生,导致线粒体崩和铁亡.
活体研究表明显著的免疫重塑,包括树突细胞成熟和T细胞透,将感冒瘤转化为免疫性瘤.

结论:

非固体测量木铁酸盐 (BiFeO_3-x) 有效控制铁亡并重塑瘤免疫微环境.
氧化还原可编程半导体的以缺陷化学为导向的设计为癌症免疫治疗提供了一个有前途的策略.
这种方法将铁电材料科学和免疫瘤学结合起来,以提高治疗结果.

关键词:

可以激活的纳米探针.结肠直肠癌是什么意思铁性化 (ferroptosis) 是一种免疫疗法免疫疗法质量细胞计量质量测量

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