"目标加控制" - 复合纳米输送系统打开了瘤血管和微环境正常化窗口,用于抗瘤治疗
Ruoyu Shen1, Qi Jiang1, Peirong Li1
1College of Pharmaceutical Science, Zhejiang University, 310058 Hangzhou, China.
International journal of pharmaceutics
|October 15, 2023
概括
这项研究引入了一种新的纳米输送系统,P-V@MG,它使瘤血管正常化并重新编程瘤微环境. 这种方法增强了药物输送和免疫细胞透,提高了抗癌治疗的疗效.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 癌症研究 癌症研究
背景情况:
- 异常的瘤微环境,以泄漏的血管系统为特征,阻碍了传统的抗癌疗法,阻碍了药物和免疫细胞的透,同时促进了瘤转移.
- 瘤血管正常化是重编程瘤微环境的有希望的策略,但控制药物剂量和释放持续作用仍然是一个挑战.
研究的目的:
- 开发一种pH响应的复合纳米输送系统 (P-V@MG),用于持续释放抗血管新生药物,以实现稳定的瘤血管正常化.
- 研究P-V@MG在重编程瘤微环境和增强抗瘤疗法的有效性.
主要方法:
- 一个复合纳米输送系统,P-V@MG,是用响应pH的PHMEMA外设计的,以提高两性和体内保留.
- 该系统旨在在弱酸性瘤微环境中持续释放Vandetanib (一种抗血管原药物).
- 治疗效果在4T1乳腺癌模型中进行了评估,评估了血管正常化,瘤微环境重编程以及用多克索鲁比辛化联合治疗的疗效.
主要成果:
- P-V@MG成功地延长了瘤血管正常化窗口.
- 纳米输送系统重新编程了瘤微环境,导致 perfusion 增加,增强免疫细胞透,并减少缺氧.
- 使用P-V@MG与多克索鲁比辛化的联合治疗证明了抗瘤效率的提高.
结论:
- 开发的P-V@MG纳米输送系统为持续的瘤血管正常化和微环境重编程提供了一个有希望的策略.
- 这种亲血管正常化方法具有显著的潜力,可以提高联合抗癌疗法的疗效.
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