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Updated: Jul 24, 2025

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新型PdPtCu纳米酶用于重编程瘤微环境,通过内分泌网膜应激增强免疫疗法,并阻断IDO介导的免疫逃逸

Yulin Xie¹, Man Wang¹, Yanrong Qian¹

¹Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, 266237, P. R. China.

Small (Weinheim an der Bergstrasse, Germany)

|July 3, 2023

概括

这项研究引入了一种新型纳米酶 (PNBCT^ER),通过结合多种疗法来重塑瘤微环境 (TME). 这种方法有效地通过打破免疫抑制来抑制瘤生长和复发.

科学领域:

生物医学工程生物医学工程
纳米技术纳米技术
癌症治疗癌症治疗

背景情况:

免疫抑制性瘤微环境 (TME) 对有效的癌症治疗构成了重大挑战.
打破这种免疫抑制对于抑制瘤生长和预防复发至关重要.

研究的目的:

为了开发一种向纳米酶 (PNBCT^ER),以促进癌症免疫疗法.
研究PNBCT^ER在重塑TME和激活抗瘤免疫反应方面的综合治疗效果.

主要方法:

制备一种PdPtCu纳米酶 (PNBCT^ER),具有类似于catalase (CAT),glutathione oxidase (GSHOx) 和peroxidase (POD) 的活性.
使用PNBCT^ER进行光动力疗法 (PDT),光热疗法 (PTT) 和化学动力疗法 (CDT),以向瘤细胞及其ER.
使用NLG919来阻断托/金林免疫逃生通路.

主要成果:

PNBCT^ER显示出能够重塑TME的显著酶活动.
纳米酶有效地通过PDT和PTT杀死瘤细胞,并诱导ER损伤.
与NLG919的联合治疗逆转了免疫抑制的TME,并激活了抗瘤免疫力.

结论:

开发的针对ER的纳米酶 (PNBCT^ER) 为结合性癌症治疗提供了一种新的策略.
通过酶催化和打破免疫抑制来重塑TME是治疗瘤的一个有希望的方法.
这项研究为应用组合疗法克服瘤免疫逃避提供了新的途径.

关键词:

组合疗法治疗组合治疗.细胞内膜网膜向向的目标免疫检查点抑制剂免疫检查点抑制剂免疫性细胞死亡免疫性细胞死亡贵金属的纳米酶是贵金属的纳米酶.

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