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核向的声敏剂激活了cGAS-STING途径,用于瘤声动力免疫疗法

Jian Chen¹, Zeyu Duan¹, Qiyu Zhan¹

¹Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou 510515, PR China.

ACS applied bio materials

|November 6, 2024

概括

这项研究引入了TBzT-CPi,一种新型分子,通过向癌细胞核来增强声动疗 (SDT). 这种方法可以增强抗瘤免疫力,并触发癌细胞死亡,为癌症治疗提供了一种新的策略.

科学领域:

生物医学工程生物医学工程
癌症研究癌症研究
免疫学免疫学免疫学

背景情况:

核对于声动力学疗法 (SDT) 和抗瘤免疫非常重要.
在现场产生反应性氧物种 (ROS),损伤核,并激活cGAS-STING途径以产生免疫反应方面存在挑战.

研究的目的:

开发一种小分子,TBzT-CPi,可以放大核向SDT和cGAS-STING通路依赖的免疫刺激.
研究TBzT-CPi在诱导癌细胞死亡和调节瘤微环境方面的疗效.

主要方法:

设计了一个D-A-π-A1结构小分子,TBzT-CPi.
利用超声波辐射触发ROS生成和TBzT-CPi的核积累.
在瘤微环境中评估DNA损伤,免疫细胞死亡 (ICD),细胞亡和免疫细胞激活 (细胞毒性T淋巴细胞,树突细胞).

主要成果:

在超声波照射时,TBzT-CPi在核中积累,在现场产生ROS.
向核的SDT诱导了瘤细胞中的DNA损伤,亡和ICD.
TBzT-CPi治疗通过激活免疫细胞和分泌细胞因子来改变免疫抑制瘤微环境.

结论:

用TBzT-CPi向核的SDT有效诱导癌细胞死亡并增强抗瘤免疫力.
这一战略显示出开发用于声动力免疫治疗的新型声敏化剂的前景.
TBzT-CPi通过将直接杀死瘤细胞与免疫系统激活相结合,代表了癌症治疗的潜在治疗剂.

关键词:

免疫原性细胞死亡免疫治疗是一种免疫疗法.核准的目标是核.这是一个sonosensitizer.在cGAS-STING路径中.

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