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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
immunology and microbiology
Naked DNA when co-administered intranasally with heat-labile enterotoxin of Escherichia coli primes effectively for systemic B- and T-cell responses to the encoded antigen
Immunology Letters, Volume 74, No. 3, Year 2000
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Description
In this study a novel prime-boost immunisation strategy was evaluated. Priming of BALB/c mice by the intranasal route with plasmid DNA encoding β-galactosidase (LacZ) with or without heat-labile enterotoxin (LT) of Escherichia coli as a mucosal adjuvant, resulted in the induction of weak serum antibody and proliferative T-cell responses. However, following an intraperitoneal booster injection with the β-galactosidase protein (β-gal), strong antibody and proliferative T-cell responses were induced in all the mice. These responses were highest in mice primed intranasally with a mixture of LacZ + LT as compared to those mice primed with DNA (LacZ) or protein (β-gal) alone. Moreover, LacZ + LT primed mice produced high avidity antibodies and the subclasses of serum antibodies were IgG1 and IgG2a, suggesting a mixed Th1/Th2-type response. Priming of mice with either protein (β-gal) or DNA (LacZ) alone, produced predominantly IgG1 antibodies, suggesting a Th2-type response. These findings suggest that the use of a heterologous DNA-prime, protein-boost immunisation scheme combining different routes of administration, might be an advantageous strategy for the induction of accelerated immune responses. © 2000 Elsevier Science B.V.
Authors & Co-Authors
Kanellos, Theophanis S.
United Kingdom, London
Royal Veterinary College University of London
Byarugaba, Denis K.
Uganda, Kampala
Makerere University
Russell, Peter H.
United Kingdom, London
Royal Veterinary College University of London
Howard, Colin R.
United Kingdom, London
Royal Veterinary College University of London
Partidos, Charalambos D.
France, Strasbourg
Laboratoire D’immunologie, Immunopathologie et Chimie Thérapeutique I2ct
Statistics
Citations: 23
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.1016/S0165-2478(00)00257-1
ISSN:
01652478
Research Areas
Genetics And Genomics