一个基于CaCO3的纳米平台,具有激活的声动力学和瘤微环境,用于结合体外癌症治疗
Jiale Cai1, Guiping Hu1, Lihua Hu2
1Beijing Advanced Innovation Center for Biomedical Engineering, Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Engineering Medicine Beijing, Beihang University, Beijing 100191, China.
Translational oncology
|September 20, 2023
概括
这项研究介绍了一种用于声动疗 (SDT) 的新型纳米平台 (QD@Ca/ML-Arg),它有效调节瘤微环境 (TME),并通过组合疗法增强癌症治疗.
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:
- 声动力疗法 (SDT) 对癌症治疗有希望,但受到复杂瘤微环境 (TME) 因素的限制.
- 有效的TME调制和高效的瘤治疗仍然是SDT的关键挑战.
研究的目的:
- 为超声波 (美国) 触发的SDT开发一个纳米平台,该平台对TME做出反应.
- 研究用于增强癌症治疗的综合治疗策略.
主要方法:
- 设计了一个碳酸 (CaCO3) 纳米平台 (QD@Ca/ML-Arg),封装了Ag2S和l-Arg,被包裹在红细胞/血小板膜中.
- 美国引发的SDT,酸性环境响应药物释放和体外实验被采用.
- RNA测序阐明了治疗机制,共同培养系统评估了免疫激活.
主要成果:
- 实现了美国触发的非侵入性SDT和对酸性环境有反应的药物释放.
- 在实验室中验证了联合SDT,Ca-离子干扰和氧化 (NO) 气体治疗的疗效.
- 阐明了SDT在氧化还原通路中的机制,并通过免疫细胞死亡 (ICD) 证实了免疫激活.
结论:
- QD@Ca/ML-Arg纳米平台展示了TME调制和癌症治疗的潜力.
- 该研究强调了该平台在体外癌症治疗和临床转化方面的有效性.
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