Nasal immunisation with Salmonella typhimurium producing rotavirus VP2 and VP6 antigens stimulates specific antibody response in serum and milk but fails to protect offspring

Détails

ID Serval
serval:BIB_2E105AA6258A
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Nasal immunisation with Salmonella typhimurium producing rotavirus VP2 and VP6 antigens stimulates specific antibody response in serum and milk but fails to protect offspring
Périodique
Vaccine
Auteur⸱e⸱s
Coste  A., Cohen  J., Reinhardt  M., Kraehenbuhl  J. P., Sirard  J. C.
ISSN
0264-410X (Print)
Statut éditorial
Publié
Date de publication
07/2001
Volume
19
Numéro
30
Pages
4167-74
Notes
Journal Article
Research Support, Non-U.S. Gov't --- Old month value: Jul 20
Résumé
Rotavirus specifically infects the small intestine of young infants resulting in severe diarrhoea. Mucosal antibody responses are required to cure the infection, and mucosal administration of rotavirus-like particles induces protective immunity without requiring a mucosal adjuvant such as cholera toxin. In addition, the rotavirus protein VP6 has been defined as a protective antigen in an adult mouse rotavirus infection model. Salmonella typhimurium is an epithelium-invasive bacterium that induces specific immune responses in mucosal tissues against itself and carried antigens. In this work, we investigated the capacity of a live recombinant S. typhimurium vaccine to stimulate antibody responses against rotavirus. We constructed an attenuated S. typhimurium strain simultaneously producing VP6 and VP2 rotavirus proteins in the cytoplasm. In contrast to expression in eukaryotic cells, VP6 and VP2 did not form virus-like particles in our bacterial system. After nasal administration of female mice, the live recombinant Salmonella were able to elicit an antibody response specific to both VP2 and VP6 in serum and milk. However, these antibodies failed to passively protect the offspring against rotavirus-induced diarrhoea.
Mots-clé
Administration, Intranasal Animals Antibodies, Viral/*biosynthesis *Antigens, Viral Capsid/*immunology Capsid Proteins Female Immunization Male Mice Mice, Inbred BALB C Milk/*immunology Rotavirus/*immunology Salmonella typhimurium/*genetics Vaccines, Synthetic/administration & dosage/*immunology Viral Vaccines/administration & dosage/*immunology
Pubmed
Web of science
Création de la notice
25/01/2008 15:05
Dernière modification de la notice
20/08/2019 13:12
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