集成微针与阿托瓦斯塔丁载基索姆用于乳腺癌治疗:一种局部化输送方法
Lamia A Heikal1, Asmaa A Ashour1, Alaa R Aboushanab1
1Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.
概括
这项研究开发了装有阿托瓦斯塔丁 (ATV) 的新南瓜种子油纳米载体 (PUMP),用于向乳腺癌治疗. 在临床前模型中,ATV-PUMP的微针输送增强了药物的疗效,并减少了瘤的生长.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 药理学 药理学是指药理学的学科.
背景情况:
- 乳腺癌是全球女性死亡的主要原因之一.
- 早期检测和有效治疗对于改善患者存活率至关重要.
- 微针 (MN) 技术为癌症治疗中的局部,非侵入性药物输送提供了一个有希望的途径.
研究的目的:
- 为了配制一种含有阿托瓦斯塔丁 (ATV) 的生物活性南瓜种子油囊状纳米载体,称为 pumpkisomes (PUMP).
- 评估PUMP集成到溶解微针 (ATV-PUMP@dMN) 中,用于增强局部乳腺癌治疗的疗效.
- 在临床前瘤模型中评估ATV-PUMP@dMN的抗癌作用.
主要方法:
- PUMP的配方和特征,包括粒子大小,泽塔潜力和捕获效率.
- 在体外评估ATV释放动力学,细胞毒性,细胞内化和对MDA-MB-231细胞的抗迁移作用.
- 溶解微针的制造和评估 (ATV-PUMP@dMN) 溶解速度,机械强度,穿孔效率和皮肤透.
- 在埃里希炎乳腺瘤模型中对ATV-PUMP@dMN的体内评估,分析与增殖,血管生成和亡相关的瘤生物标志物.
主要成果:
- 优化的PUMP配方表现出有利的物理化学特性 (151.8纳米大小,54.1mV泽塔电位,73%的捕获效率) 和持续的ATV释放.
- 与自由ATV相比,ATV-PUMP表现出强大的选择性细胞毒性 (IC50: 2.82μg/mL),增强细胞吸收 (2.8倍),以及显著的抗迁移活性.
- ATV-PUMP@dMN显示有效溶解,机械完整性,皮肤透率提高 (1.8倍),瘤生长和进展在体内显著减少,使生物标志物恢复到正常水平.
结论:
- 基素体 (PUMP) 是一种新且有效的纳米载体系统,用于局部药物输送.
- 微针集成的ATV-PUMP增强了药物输送和治疗乳腺癌的疗效.
- 这种与PUMP集成的微针平台对未来局部乳腺癌治疗具有重大潜力.
相关概念视频
01:22Modified-Release Drug Delivery Systems: Rate-Programmed I
Rate-programmed drug delivery systems (DDS) are designed to release drugs at specific, controlled rates to maintain consistent therapeutic levels. These systems are categorized based on their release mechanisms, including dissolution-controlled DDS, diffusion-controlled DDS, and combined dissolution-diffusion-controlled DDS.In dissolution-controlled DDS, the release rate depends on the slow dissolution of the drug itself or the surrounding matrix. Drugs with inherently slow dissolution rates,...
01:24Modified-Release Drug Delivery Systems: Site-Targeted
Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
01:24Site-Targeted Drug Delivery Systems: Polymeric Carriers
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...