用于口服药物输送的冷磨砂β-葡萄糖纳米颗粒
Guanyu Chen1, Yi Liu1, Darren Svirskis2
1School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China.
Pharmaceutics
|April 27, 2024
概括
这项研究开发了新的β-葡萄糖纳米颗粒 (NP) 用于口服凝,显著提高其生物可用性和瘤抑制. 新的gemcitabine输送系统在口服化疗中显示出有前途的应用.
科学领域:
- 纳米技术纳米技术
- 药物运输 药物运输 药物运输
- 癌症治疗 癌症治疗
背景情况:
- 强效的抗癌药物格姆西塔因其水友性和肠道透性低,口服生物可用性 (<10%) 较差.
- 有效的口服输送系统对于改善gemcitabine的治疗指数和患者遵从性至关重要.
研究的目的:
- 开发一种新的纳米颗粒药物输送系统,用于口服凝.
- 通过封装在β-葡萄糖纳米颗粒 (NP) 中来增强gemcitabine的口服生物可用性和抗瘤功效.
主要方法:
- 用gemcitabine装载的β-葡萄糖NP是使用造和冷加工技术制造的.
- 特性包括颗粒大小,药物捕获效率,药物释放动力学,ex vivo肠道透,细胞毒性,急性毒性,药物动力学和体内抗瘤疗效.
- 分析了药物释放机制,表明异常扩散 (Fickian扩散和矩阵侵蚀).
主要成果:
- β-葡萄糖NP的颗粒大小为447.6 ± 14.2 nm,并且具有很高的药物捕获效率 (64.3 ± 2.1%).
- 观察到持续的药物释放,与凝胺溶液相比,增强了ex vivo肠道透.
- 药理动力学研究显示,半衰期长7.4倍,口服生物可用性增加5.1倍.
- 在体内研究表明,显著抑制4T1乳腺瘤生长 (3.04倍减少与控制).
结论:
- 冷粉碎的β-葡萄糖NP系统提供了一个有效的平台,用于口服凝,克服其生物可用性限制.
- 这种新型的输送系统显示出改善口服化疗疗效率和患者治疗结果的巨大潜力.
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