优化帕克利塔塞尔口服吸收和生物可用性:通过超临界抗溶剂流化床技术进行TPGS联合涂层
Zicheng Zhong1, Yanling Lan1, Jinxing Chen1,2
1School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 232 University City Ring Road East, Panyu District, Guangzhou 510006, China.
Pharmaceuticals (Basel, Switzerland)
|April 27, 2024
概括
超临界抗溶剂流化床 (SAS-FB) 涂层增强了帕克利塔塞尔 (PTX) 对难溶性药物的生物可用性. 这项技术显著提高了药物输送和治疗疗效 in vivo.
科学领域:
- 制药技术 制药技术 制药技术
- 药物输送系统 药物输送系统
- 纳米技术在医学中的应用
背景情况:
- 生物制药分类系统 (BCS) 第四类药物,如帕克利塔塞尔 (PTX),具有较差的溶解性和较低的生物可用性,限制了它们的治疗效果.
- 克服这些挑战对于提高许多抗癌药物的疗效至关重要.
- 超临界抗溶剂流化床 (SAS-FB) 涂层提供了一种有希望的方法来增强药物特性.
研究的目的:
- 探索SAS-FB技术的应用,以D-α-多科菲醇聚乙烯甘氨酸1000糖酸盐 (TPGS) 涂上乳糖的帕克利塔塞尔 (PTX).
- 评估SAS-FB共同涂层对PTX特征,溶解,细胞透性和体内口服生物利用性的影响.
- 展示SAS-FB技术在解决BCS IV类药物的生物可用性问题上的潜力.
主要方法:
- 在乳糖颗粒上使用TPGS对PTX进行优化SAS-FB涂层.
- 使用扫描电子显微镜 (SEM) 和X射线粉末衍射 (XRPD) 进行表征.
- 在体外溶解研究,细胞膜传输测定,以及在动物模型中的体内药物动力学研究.
主要成果:
- 使用优化的SAS-FB条件实现了96.8%的高PTX涂层效率.
- 证实了乳糖涂层内PTX的结晶状态.
- 在SAS-FB处理的样本中,药物释放速度快 (>95%在1分钟内) 并且细胞吸收和透性增强.
- 在口服生物利用度显著增加:与未经加工的PTX相比,SAS-FB (TPGS) 的2.66倍和SAS-FB加工样本的1.49倍.
结论:
- 通过SAS-FB对PTX与TPGS的共同涂层是一种高度有效的策略,可以提高不溶性BCS类IV药物的生物可用性.
- 该技术增强了药物溶解,细胞运输和体内疗效.
- 这种方法为提高具有挑战性的药物的性能提供了一种有价值的方法.
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