生物功能化聚合物纳米粒子用于癌症治疗中增强erlotinib的输送
Ruchi Tiwari1, Anasuya Patil2, Ritu Verma3
1Pranveer Singh Institute of Technology (Pharmacy), Kanpur, Uttar Pradesh, India.
Journal of biomaterials science. Polymer edition
|November 23, 2024
概括
优化了带有erlotinib的PLGA纳米颗粒可以改善药物输送. 该研究确定了一种稳定的配方 (F5),具有增强的生物可用性和治疗癌症治疗的疗效.
科学领域:
- 制药纳米技术 制药纳米技术
- 药物输送系统 药物输送系统
- 材料科学 材料科学 材料科学
背景情况:
- 埃洛提尼布是一种表皮生长因子受体 (EGFR) 抑制剂,具有较差的水溶性和稳定性,限制了其生物可用性.
- 聚乳糖糖酸 (PLGA) 纳米颗粒为改善难溶性药物的输送提供了一个有前途的平台.
- 优化纳米粒子配方对于增强药物负载,稳定性和受控释放至关重要.
研究的目的:
- 使用3 ^ 2因数设计优化带有erlotinib的PLGA纳米颗粒.
- 研究PLGA和NaTPP度对纳米粒子特性的影响.
- 提高埃洛提尼布的生物可用性和治疗疗效,以改善药物输送.
主要方法:
- 为了优化纳米粒子配方,采用了3 ^ 2的因数设计.
- 测量了粒子大小,泽塔潜力和多分散度指数 (PDI),以描述纳米粒子.
- 传输电子显微镜 (TEM) 和X射线衍射 (XRD) 用于形态和结构分析.
- 为了评估性能,进行了体外药物释放和细胞毒性试验.
主要成果:
- 最佳配方 (F5) 的粒子大小为169.1nm,泽塔电位为20.0mV,PDI为0.146,表明纳米粒子均且稳定.
- 配方F5实现了高的捕获效率 (81.9%) 和产量 (83.0%).
- 在零顺序动力学和低细胞毒性之后,观察到持续的药物释放 (90.0%在48小时内).
结论:
- 优化的erlotinib载荷的PLGA纳米粒子 (F5) 显示了增强药物递送的有利特性.
- 该配方表现出改善的稳定性,受控释放和安全的毒性概况.
- 这些优化的纳米颗粒具有显著的潜力,可以通过增强生物可用性和实现有针对性的输送来提高erlotinib的治疗疗效.
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