两性维生素E衍生物的注射水凝用于局部区域化疗
Qianli Sheng1, Min Yuan1,2, Dan Wang1
1Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, School of Pharmacy, Henan University, Kaifeng 475004, China.
Langmuir : the ACS journal of surfaces and colloids
|August 10, 2023
概括
这项研究介绍了一种可注射的水凝,使用维生素E衍生物 (α-TOS) 来输送诸如多克索鲁比 (DOX) 等化疗药物. 这种新型配方增强了药物的疗效,并降低了毒性,改善了癌症治疗.
科学领域:
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
- 纳米技术纳米技术
背景情况:
- 维生素E衍生物,特别是α-托哥菲林糖酸盐 (α-TOS),由于其安全性和选择性,在化疗中表现有前途.
- α-TOS 的疏水性阻碍了系统的管理,需要先进的局部传递方法.
- 目前α-TOS的本地化配方有限,因此需要创新的交付平台.
研究的目的:
- 开发一种可注射的水凝系统,用于局部和协同输送α-TOS和化疗剂.
- 用于将多克索鲁比辛 (DOX) 封装在自组装的α-TOS衍生物 (PEG-2VES) 微粒中,用于联合化疗.
- 为了评估水凝的稳定性,药物释放概况和治疗疗效 in vitro 和 in vivo.
主要方法:
- 通过将α-TOS接种在聚乙烯糖醇 (PEG) 链上,合成一个triblock双胞胎α-TOS衍生物 (PEG-2VES).
- 在疏水核中形成自我组装的细胞,封装多克索鲁比辛 (DOX).
- 通过在水中溶解PEG-2VES聚合物或DOX载小粒来制备注射用水凝.
- 皮下注射水凝和评估其结构完整性,持续释放超过7天,以及炎症反应.
- 在体外和体内对协同抗瘤效应和毒性概况的评估.
主要成果:
- 开发的水凝在皮下注射后保持其形状,并在7天内持续释放有效载荷.
- 注射后没有观察到显著的炎症反应,表明良好的生物相容性.
- 在体外和体内研究证实了当水凝和装载DOX一起使用时,协同作用的抗瘤作用.
- 与单独使用DOX相比,装载DOX的水凝显示出更高的治疗效率和更少的毒性副作用.
结论:
- 基于PEG-2VES菌根的可注射水凝是一种可行的,有效的局部药物输送系统.
- 这种多功能系统成功地提供药物,通过协同作用增强治疗结果,并最大限度地减少全身毒性.
- 开发的水凝通过结合α-TOS和传统化疗剂的好处,具有改善化疗的巨大潜力.
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