[用于药物输送的多糖胺修饰脂质纳米颗粒的研究进展]
Yuqing Ma1,2, Haiyun Liu1, Xiaoqiang Wang3
1State Key Laboratory for Animal Disease Control and Prevention, College of Veterinary Medicine, Lanzhou University, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730000, Gansu, China.
Sheng wu gong cheng xue bao = Chinese journal of biotechnology
|December 26, 2024
概括
聚糖胺修饰增强脂质纳米颗粒用于药物输送,改善稳定性和向性. 这些改性纳米粒子由于其生物相容性和低毒性,具有很大的临床应用潜力.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 药物输送系统 药物输送系统
背景情况:
- 脂质纳米颗粒 (LNP) 是有前途的药物输送载体,因为它们的生物相容性,非免疫性和高药物载荷能力.
- 未经修改的LNP具有不良的稳定性,易受水解和快速清除,限制了它们的治疗疗效.
- 为了提高LNP的性能,已经探索了各种修改,包括,抗体,连接体,核酸胺和多糖修改.
研究的目的:
- 审查多糖胺修饰脂质纳米颗粒的制备方法和应用.
- 突出聚糖基改造改善LNP特性的优点.
- 为未来的研究和开发提供参考,用于临床翻译的多糖胺修饰的LNP.
主要方法:
- 文献综述专注于脂质纳米颗粒的多糖化物修饰策略.
- 对经过多糖胺修饰的LNP报告的制备技术的分析.
- 评估详细介绍这些改性纳米颗粒的应用和性能的研究.
主要成果:
- 聚糖修饰显著提高了LNP的稳定性,生物相容性和准精度.
- 与未经修改的对应物相比,多糖化物修改的LNP显示出较低的毒性.
- 这些纳米粒子表现出增强的药物加载效率和受控释放特性.
结论:
- 经过多糖化物修饰的脂质纳米颗粒提供了一个卓越的药物递送平台,具有增强的治疗潜力.
- 它们的改进特性使得它们非常适合各种临床应用.
- 对多糖胺修饰的LNP进行进一步的研究是有必要的,以充分实现它们的临床益处.
相关概念视频
01:19Modified-Release Drug Delivery Systems: Rate-Programmed II
Rate-programmed drug delivery systems release drugs in a controlled manner to maintain therapeutic levels. Three main designs include reservoir, matrix, and hybrid systems.Reservoir systems consist of a drug core enclosed within a membrane that controls drug release. In non-swelling reservoir systems, polymers like ethyl cellulose or polymethacrylates are used. These do not hydrate in aqueous media and control release through membrane thickness, porosity, or insolubility. This type includes...
01:20Modified-Release Drug Delivery Systems: Influencing Factors
Modified-release drug delivery systems are designed to optimize the therapeutic effect of drugs by minimizing side effects, reducing the dosage required, and controlling drug release to align with pharmacokinetic and pharmacodynamic needs. The system depends on two key factors: the drug's release from the formulation and its movement through the body to the target site. Unlike conventional dosage forms, where absorption is the limiting step, the rate of drug release is the key determinant in...
01:23Modified-Release Drug Delivery Systems: Classification
Modified-release drug delivery systems improve drug efficacy and minimize side effects by controlling the rate and location of drug release. These systems fall into three categories: rate-programmed, stimuli-activated, and site-targeted.Rate-programmed systems release drugs at a predetermined rate, maintaining consistent therapeutic levels and reducing fluctuations that could lead to toxicity or subtherapeutic effects. These systems use polymeric matrices, reservoir-based designs, or osmotic...
01:30Modified-Release Drug Delivery Systems: Stimuli-Activated
Stimuli-activated drug delivery systems are designed to release drugs in response to specific physical, chemical, or biological stimuli. These systems often utilize hydrogels—three-dimensional, hydrophilic polymer networks capable of swelling in aqueous environments and retaining significant fluid volumes. Upon exposure to particular stimuli, these hydrogels undergo structural transitions that allow the embedded drug to be released. Due to this adaptive behavior, such systems are also called...
01:24Modified-Release Drug Delivery Systems: Site-Targeted
Site-targeted drug delivery systems enhance therapeutic efficacy while minimizing systemic toxicity and treatment costs. Unlike conventional methods, these systems ensure precise drug delivery, improving bioavailability and reducing side effects. Targeted drug delivery is classified into three levels. First-order targeting directs drugs to the capillary beds of specific organs or tissues. Second-order targets specific cell types, such as tumor cells, using receptor-mediated interactions.
01:24Site-Targeted Drug Delivery Systems: Polymeric Carriers
Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...