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Journal Article
Review
Chitosan-based particulate systems for the delivery of mucosal vaccines against infectious diseases.
International Journal of Biological Macromolecules 2018 April 16
Given that most pathogens enter the body at mucosal surfaces for infection and mucosal immune responses act as the first line of defense against the invading pathogens, mucosal vaccination is the most effective method to prevent infectious diseases. However, the development of mucosal vaccines requires an efficient antigen delivery system which should protect the antigens from physical elimination and enzymatic degradation, target mucosal inductive sites, and appropriately stimulate the mucosal and systemic immunity. Accordingly, polymeric particles have garnered much attention because the physicochemical properties of polymers can be adjusted to resolve the issues associated with mucosal vaccine delivery. Particularly, chitosan-based polymeric carriers are the most promising vehicles for mucosal vaccine delivery because chitosan is biodegradable, biocompatible and mucoadhesive in nature. Similarly, chitosan can be modified with chemical and biological molecules to develop delivery carriers for controlled or targeted therapy. Moreover, they can be converted to various formulations, such as solid, liquid and gel, with a wide range of particle sizes. In this review, we highlight and discuss advances in the development of chitosan-based particulate systems, specifically for the delivery of mucosal vaccines against infections.
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