新型双层PLGA微粒溶解微针 (MPs-DMN) 系统用于通过透皮输送持续释放的类药物
Bo Xu1, Han Liu2, Guozhong Yang2
1Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
International journal of pharmaceutics
|December 26, 2024
概括
这项研究引入了一种新型的双层溶解微针系统,载有微粒,用于持续通过皮肤递送像exenatide这样的类药物. 该系统在糖尿病小鼠中展示了高药载荷,高效的输送和长时间的治疗效果.
科学领域:
- 生物材料科学 生物材料科学
- 药物输送系统 药物输送系统
- 纳米技术 纳米技术
背景情况:
- 通过皮肤递送药物为生物大分子的持续释放提供了优势.
- 溶解微针 (DMN) 结合微粒 (MP) 是一个有前途的策略.
- 在优化治疗药物加载和释放动力学方面仍然存在挑战.
研究的目的:
- 开发和描述一个双层微粒溶解微针 (MPs-DMN) 系统,用于持续通过皮肤递送类药物.
- 评估MPs-DMN系统的药物加载效率,释放动力学和体内疗效.
- 建立分析方法来量化输送系统和生物流体中的类药物.
主要方法:
- 使用超声波辅助的双乳液溶剂蒸发制造PLGA微粒.
- 开发一个双层DMN系统,在针尖集中MP.
- 使用HPLC-UV和UPLC-MS对外化物 (EXT) 的定量分析.
- 在糖尿病小鼠的体外药物释放研究,药理动力学和药理动力学评估.
主要成果:
- 在PLGA MPs中实现了高的exenatide负载效率 (22.76 ± 0.64%).
- 通过皮肤传递药物的有效性 (92.86 ± 1.62%) 证明,MPs集中在针头尖端.
- 药物释放时间延长,半衰期长 (466.4±12.2小时),生物可用性高 (89.71%).
- 在糖尿病小鼠中成功控制了血糖水平两周.
结论:
- 开发的MPs-DMN系统为持续通过皮肤递送类药物提供了一个有效的平台.
- 这项技术为慢性疾病管理提供了传统注射方法的可行替代方案.
- 进一步的研究可以为各种疗法和临床应用优化该系统.
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