喷雾冷干燥的多西环素纳米颗粒用于巨细胞向的肺部输送
Manar Magdy1, Hugh D C Smyth1, Azza A Mahmoud2
1Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, 2409 University Ave., Austin, TX 78712, USA.
International journal of pharmaceutics
|October 11, 2025
概括
这项研究开发了可吸入的多西环素载脂纳米颗粒 (LNP) 用于肺部疾病. 优化的配方显示了高的药物含量和有效的向巨细胞传递,增强了抗微生物药物的有效性.
科学领域:
- 制药科学 制药科学
- 纳米技术 纳米技术
- 肺部药物输送 肺部药物输送
背景情况:
- 吸入式药物输送系统为肺部疾病提供局部和持续的治疗.
- 脂质纳米颗粒 (LNP) 是增强药物的生物可用性和治疗功效的有希望的载体.
研究的目的:
- 开发和描述可吸入的多西环林载荷的LNP用于治疗肺部感染.
- 为了优化LNP的组成和配方用于肺部的管理和巨细胞向.
主要方法:
- 使用具有不同脂质比率的微流体 (EPG/DOPA,HSPC,CHO) 将多西环素封装到LNP中.
- 对于LNP的表征 (颗粒大小,PDI,ZP,药物含量,体外释放).
- 喷雾冷干燥 (SFD) 以创建一个干粉吸入 (DPI) 配方和使用NGI. aerosolization研究.
主要成果:
- 具有60:20:20的DOPA:HSPC:CHO比率的LNP显示了最佳特征 (低PDI,约95%的药物含量).
- 该DPI配方显示出适合于下呼吸道沉积的气溶性质.
- 观察到J774.A1巨细胞的有效细胞吸收和增强的抗菌活性.
结论:
- 开发的多西环素加载的LNP DPI配方是一种有希望的可吸入系统,用于向膜巨细胞.
- 这种方法可以促进抗微生物活性对抗关键肺部感染.
相关概念视频
01:24External and Internal Respiration
External respiration occurs in the lungs, and it is the first step in the journey of oxygen inside the body. When we inhale, oxygen enters our lungs and diffuses across the thin alveolar membrane. The alveoli are tiny, air-filled sacs that provide a vast surface area for gas exchange. Oxygen in the alveoli has a higher partial pressure (105 mmHg) than in the adjacent pulmonary capillaries (40 mmHg), establishing a pressure gradient. As a result, oxygen molecules move from the alveoli into the...
01:23Inhaled Medications
Inhaled medications are crucial for managing chronic obstructive pulmonary disease (COPD) and asthma. They are essential for effective treatment and control, ensuring optimal respiratory health and well-being. Inhaled medication delivers drugs directly to the lungs, providing a rapid onset of action and reducing systemic side effects compared to oral or injectable medications. Three primary types of inhalation devices are used to administer these medications: nebulizers, metered-dose inhalers...