通过对氧化铁和金纳米颗粒的结合,向性帕克利塔塞尔
Jih Ru Hwu1, Yu Sern Lin, Thainashmuthu Josephrajan
1Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan 300, ROC.
Journal of the American Chemical Society
|December 17, 2008
概括
磁铁纳米颗粒被功能化,以携带帕克利塔塞尔药物分子. 这些纳米粒子在暴露于特定酶时成功释放了药物有效载荷,显示了针对药物输送的潜力.
科学领域:
- 生物技术是生物技术.
- 纳米医学是一种纳米医学.
- 药物运输 药物运输 药物运输
背景情况:
- 药物输送系统对于提高治疗疗效和减少副作用至关重要.
- 由于其独特的特性,纳米粒子为向药物输送提供了一个有前途的平台.
- 帕克利塔克塞尔是一种强大的化疗剂,其当前的施用方法有局限性.
研究的目的:
- 开发新的铁氧化物 (Fe(3) O(4)) 纳米颗粒,用于针对性地输送帕克利塔塞尔.
- 为了将帕克利塔塞尔与纳米颗粒结合,使用可切割的链接器进行控制释放.
- 描述开发的纳米载体的药物加载和释放特性.
主要方法:
- 合成和表征Fe(3) O(4) 纳米粒子.
- 纳米颗粒的功能化与maleimidyl 3-succinimidopropionate连接体.
- 通过聚乙烯糖醇 (PEG) 间隔剂和基结合,对帕克利塔塞尔的结合.
- 每个纳米粒子的药物负载量化.
- 在实验室中使用固酶进行药物释放研究.
主要成果:
- 已经成功合成和功能化Fe(3) O(4) 纳米粒子.
- 每个纳米粒子平均有83个帕克利塔塞尔分子被结合.
- 这些纳米颗粒在暴露于基化酶时,证明了可以通过酶切割的药物释放.
- 聚乙烯糖醇 (PEG) 间隔剂和基结合促进了药物的受控释放.
结论:
- 开发的Fe(3) O(4) 纳米颗粒代表了帕克利塔塞尔的一种可行的药物输送系统.
- 对酶敏感的链接剂能够控制和向地释放化疗剂.
- 这种方法有可能通过提高药物的疗效和最大限度地减少全身毒性来改善癌症治疗.
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