Biodegradable Microspheres: Vaccine Delivery System for Oral Immunization

Autor: Richard M. Gilley, J A Meulbroek, Zina Moldoveanu, John H. Eldridge, T. R. Tice, Jay K. Staas
Rok vydání: 1989
Předmět:
Zdroj: Current Topics in Microbiology and Immunology ISBN: 9783642745317
DOI: 10.1007/978-3-642-74529-4_6
Popis: The potential of biocompatible and biodegradable microspheres as a controlled release oral vaccine delivery system has been examined. Orally-administered 1-10 micron microspheres composed of poly (DL-lactide-co-glycolide) were specifically taken up into the Peyer's patch lymphoid tissue of the gut, where those greater than or equal to 5 micron remained for up to 35 days. Microspheres less than 5 micron disseminated within macrophages to the mesenteric lymph nodes and spleen. In contrast to soluble staphylococcal enterotoxin B toxoid, oral immunization with enterotoxoid in microspheres induced circulating toxin-specific antibodies and a concurrent secretory IgA anti-toxin response in saliva and gut fluid.
Databáze: OpenAIRE