维生素k3载磁纳米粒子介导的协同作用的磁热动力学疗法引发大规模的ROS和免疫调节,增强抗瘤潜力
Anjali Chauhan1, Km Anjaly2, Anamika Saini1,3
1Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India.
ACS applied materials & interfaces
|June 2, 2023
概括
磁热热力学疗法结合了ROS和热效应,用于增强癌症治疗. 这种使用含有维生素k3的纳米颗粒的新方法显著抑制瘤生长,并促进完全根除.
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:
- 磁性纳米粒子介导磁性高温症 (MHT) 显示了通过反应性氧物种 (ROS) 生成瘤回归的前景.
- 低氧瘤微环境由于低ROS水平限制了MHT的疗效,需要改进治疗策略.
- 增强ROS生成对于不可逆转的氧化损伤和有效的癌症治疗至关重要.
研究的目的:
- 开发一种新的磁热动力学 (MTD) 疗法,将ROS和热介导免疫效应结合起来,用于增强癌症治疗.
- 创建维生素k3 (Vk3) 装载的铜铁酸盐纳米颗粒 (Vk3@Si@CuZnIONPs) 作为一种高效的MTD剂.
- 在低氧瘤中克服传统MHT的局限性.
主要方法:
- 发展Vk3@Si@CuZnIONPs作为MTD代理商.
- 在实验室中评估在交替磁场 (AMF) 下的ROS产生和抗癌反应.
- 在A549肺腺癌外阴瘤模型中对MTD治疗的体内评估.
主要成果:
- 在AMF下观察到增强的ROS生产体外,导致显著的抗癌反应.
- 在活体中,MTD治疗在20天内实现了69%的瘤抑制率,并在30天内完全根除.
- 治疗MTD诱导显著的亡和热冲击蛋白和促炎细胞因子的表达增加,表明激活的免疫反应.
结论:
- 使用Vk3@Si@CuZnIONPs和AMF的MTD疗法,通过结合ROS和热介导免疫效应,为癌症治疗提供了强大的方法.
- 这种协同方法提高了与传统MHT相比的抗瘤疗效,特别是在具有挑战性的低氧环境中.
- 双重ROS和热介导的免疫效应具有改善未来癌症磁疗的巨大潜力.
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