壳聚糖介导的靶向药物传递系统:综述。

Chitosan mediated targeted drug delivery system: a review.

机构信息

Department of Pharmaceutics, Nootan Pharmacy College, Gujarat, India.

出版信息

J Pharm Pharm Sci. 2010;13(4):536-57. doi: 10.18433/j3jc7c.

Abstract

Chitosan has prompted the continuous movement for the development of safe and effective drug delivery systems because of its unique physicochemical and biological characteristics. The primary hydroxyl and amine groups located on the backbone of chitosan allow for chemical modification to control its physical properties. When the hydrophobic moiety is conjugated to a chitosan molecule, the resulting amphiphile may form self-assembled nanoparticles that can encapsulate a quantity of drugs and deliver them to a specific site of action. Chemical attachment of the drug to the chitosan throughout the functional linker may produce useful prodrugs, exhibiting the appropriate biological activity at the target site. Mucoadhesive and absorption enhancement properties of chitosan increase the in vivo residence time of the dosage form in the gastrointestinal tract and improve the bioavailability of various drugs. The main objective of this review is to provide an insight into various target-specific carriers, based on chitosan and its derivatives. The first part of the review is concerned with the organ-specific delivery system using chitosan and its derivatives. The subsequent section considers the recent developments of drug delivery carriers for cancer therapy with special focus on various targeting strategies.

摘要

壳聚糖具有独特的物理化学和生物学特性,促使人们不断开发安全有效的药物传递系统。壳聚糖主链上的伯羟基和伯氨基允许进行化学修饰以控制其物理性质。当疏水性部分与壳聚糖分子连接时,形成的两亲性分子可能会形成自组装纳米颗粒,从而可以包裹一定数量的药物并将其递送到特定的作用部位。通过功能连接子将药物化学连接到壳聚糖上,可以产生有用的前药,在靶部位表现出适当的生物活性。壳聚糖的黏膜黏附性和吸收增强特性增加了药物在胃肠道中的体内停留时间,并提高了各种药物的生物利用度。本综述的主要目的是提供基于壳聚糖及其衍生物的各种靶向载体的深入了解。综述的第一部分涉及使用壳聚糖及其衍生物的器官特异性递药系统。随后的部分考虑了用于癌症治疗的药物递送载体的最新进展,特别关注各种靶向策略。

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