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生物模拟铁基纳米粒子重塑免疫抑制瘤微环境用于代谢性免疫疗法

Wenyu Zhang¹, Linquan Li¹, Yaguang Wu¹

¹School of Clinical and Basic Medical Sciences, Medical Science and Technology Innovation Center, Shandong Provincial Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250000, People's Republic of China.

International journal of nanomedicine

|September 17, 2024

概括

这项研究开发了含有埃莫丁的铁基纳米粒子,用于重新编程与瘤相关的巨细胞. 这种方法逆转了免疫抑制性瘤微环境,提高了抗瘤免疫疗法的疗效.

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:

免疫疗法正在彻底改变癌症治疗.
与瘤相关的巨细胞 (TAMs) 创造了一个免疫抑制性瘤微环境 (TME).
对TME的代谢重编程可以增强抗瘤免疫疗法.

研究的目的:

为癌症免疫疗法设计一种基于铁的纳米平台 (ERFe3O4 NPs).
调节乳酸生产并逆转瘤免疫抑制微环境 (TIME).
将传统中医 (TCM) 与纳米材料结合起来,用于协同的TAM重编程.

主要方法:

工程技术中空的Fe3O4纳米颗粒装有埃莫丁,并涂有mRBCs.
嵌入的DSPE-PEG2000-银糖通过银素 (Mgl) 结合来准M2类TAM.
研究了乳酸调节,铁丰富,M1 TAM极化 (CD16/32,TNF-α) 和瘤细胞亡在体外和体内.

主要成果:

ERFe3O4 NPs有效地准了类似M2的TAM.
纳米平台通过减少乳酸盐和增加铁,扭转了时间.
ERFe3O4 NPs促进了M1 TAM两极分化,诱导了瘤细胞亡,并增强了抗瘤免疫反应.

结论:

ERFe3O4 NPs在重新编程TAM和逆转时间方面显示出潜力.
这种方法为改善抗瘤免疫治疗提供了一种新的策略.
将TCM与纳米材料相结合,为癌症治疗提供了一个有前途的途径.

关键词:

铁氧化物铁氧化物巨细胞是什么?巨细胞是什么?代谢性免疫疗法代谢性免疫疗法纳米颗粒是一种纳米粒子.通过重新编程重新编程.

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