Saudi Pharmaceutical Journal June 2022

Title	Saudi Pharmaceutical Journal June 2022
Edition	June 2022
Call Number
ISBN/ISSN
Author(s)
Subject(s)	Oral vaccines Electrospraying Mucosal pathogen Mucosal immunity
Classification
Series Title
GMD	Jurnal
Language	Indonesia
Publisher	University of Jeddah
Publishing Year	2022
Publishing Place	Arab Saudi
Collation
Abstract/Notes	abstract Most vaccines approved by regulatory bodies are administered via intramuscular or subcutaneous injec- tions and have shortcomings, such as the risk of needle-associated blood infections, pain and swelling at the injection site. Orally administered vaccines are of interest, as they elicit both systemic and mucosal immunities, in which mucosal immunity would neutralize the mucosa invading pathogen before the onset of an infection. Hence, oral vaccination can eliminate the injection associated adverse effects and enhance the person’s compliance. Conventional approaches to manufacturing oral vaccines, such as coac- ervation, spray drying, and membrane emulsification, tend to alter the structural proteins in vaccines that result from high temperature, organic and toxic solvents during production. Electrohydrodynamic pro- cesses, specifically electrospraying, could solve these challenges, as it also modulates antigen release and has a high loading efficiency. This review will highlight the mucosal immunity and biological basis of the gastrointestinal immune system, different oral vaccine delivery approaches, and the application of electrospraying in vaccines development.
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