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超分子工程细菌介导过载和瘤免疫疗法
Beibei Xie1,2, Linmiao Dong2, Leo Wang3
1Department of Liver Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine; Shanghai Engineering Research Center of Transplantation and Immunology, Shanghai 200127, China.
Theranostics
|October 31, 2024
概括
携带碳酸纳米颗粒携带黄素的工程细菌有效地向瘤. 这种方法增强了过载疗法,并与免疫疗法协同作用,改善了癌症治疗结果.
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:
- 细胞内 (Ca2+) 纳米生成器在癌症治疗中显示出潜力,但由于向和瘤透不佳而受到影响.
- 开发有效的Ca2+过载和瘤细胞积累策略对于提高治疗疗效至关重要.
研究的目的:
- 开发一种结合Ca2+过载和癌症免疫治疗的协同方法.
- 创建一个有针对性的输送系统,以增强Ca2+过载和治疗剂的输送到瘤中.
主要方法:
- 工程生物细菌 (Salmonella typhimurium VNP20009,VNP) 与碳酸 (CaCO3) 纳米粒子结合在一起.
- 库尔库 (CUR) 是一种Ca2+外流抑制剂,被加载到CaCO3纳米颗粒中,通过VNP向瘤进行向输送.
主要成果:
- 该VNP-CaCO3结合体显示增强了细胞内Ca2+过载,通过线粒体功能障碍诱导瘤细胞亡.
- VNP表现出显著的瘤向,殖民和抗癌活性,副作用最小.
- 黄素加载进一步放大了Ca2+过载和亡效应.
结论:
- 合VNP-CaCO3代表了针对癌症治疗的有前途的战略.
- 这种方法将Ca2+过载与癌症免疫疗法的协同作用,提高治疗效率.
- 开发的系统为改善癌症治疗治疗结果提供了一个新的平台.
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