粘膜粘合剂和角膜透性纳米眼液,用于改善抗光眼治疗
Xuehan Zhang1,2, Qiuyun Shao1,2, Mengjuan Yu1,2
1National Engineering Research Center of Ophthalmology and Optometry, School of Biomedical Engineering, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, Zhejiang, China.
Journal of nanobiotechnology
|February 15, 2026
概括
新的基于素的纳米颗粒有效地为玻璃眼提供拉坦诺普罗斯特眼滴. 这种增强的输送系统比目前的治疗方法更有效地改善药物透率并降低眼内压力 (IOP).
科学领域:
- 生物材料科学 生物材料科学
- 眼科医生 眼科 眼科
- 纳米技术纳米技术
背景情况:
- 青光眼的治疗依赖于局部眼滴来控制眼内压力 (IOP).
- 眼障碍物限制了药物的生物可用性,阻碍了有效的青光眼治疗.
- 需要新的药物输送系统来增强角膜药物透和保留.
研究的目的:
- 开发和评估以素为基础的纳米颗粒 (Lig-QCOS) 来增强拉坦普罗斯特 (Lat) 的眼部输送.
- 研究Lig-QCOS纳米颗粒的粘粘性和增强透性的特性.
- 评估Lat@Lig-QCOS纳米颗粒在青光眼小鼠模型中的有效性和安全性.
主要方法:
- 合成了用四级氨基基基托寡糖化物 (Lig-QCOS) 涂覆的基于的纳米粒子.
- Lat@Lig-QCOS纳米粒子的特点是大小,多分散性和Zeta潜力.
- 在试验室中评估了角膜透性和体内IOP降低在德克萨米他诱导的青光眼小鼠模型.
- 生物相容性通过体外和体内研究来评估.
主要成果:
- Lat@Lig-QCOS纳米粒子显示出有利的物理化学特性 (大小~225.6 nm,PDI 0.08,泽塔电位+21.5 mV).
- 带正电荷的纳米粒子增强了角膜透率2.2倍,并证明了长时间的眼膜粘附.
- 单剂量Lat@Lig-QCOS在持续10小时的时间内,与免费的拉坦诺普罗斯特和商业的Xalatan® (4.1 mmHg) 相比,可以实现更高的内血压降低 (5.2 mmHg).
- 药理动力学反应曲线 (AUC) 下的面积对于Lat@Lig-QCOS来说是自由拉坦诺的3.1倍.
- Lig-QCOS纳米载体在体外和体外表现出极好的生物相容性.
结论:
- Lig-QCOS纳米颗粒代表了一种有前途的平台,用于增强眼部药物输送在青光眼治疗.
- 粘膜粘合和增强的角膜透性的双重机制显著提高了治疗疗效.
- 这种基于天然生物聚合物的纳米系统为玻璃眼病眼滴配方提供了有效和安全的替代方案.
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