H-2-unrestricted adjuvant effect of cholera toxin B subunit on murine antibody responses to influenza virus haemagglutinin.
- 1 March 1991
- journal article
- Vol. 72 (3), 329-35
Abstract
Cholera toxin B subunit (CTB) has been shown to augment the antibody responses to influenza virus haemagglutinin (HA) in BALB/c mice immunized with HA vaccine together with CTB. In this study, mouse strain differences in the adjuvant effect of CTB on anti-HA antibody responses were investigated along with those in the antibody responses to CTB or HA, using various inbred and H-2 congenic strains. The antibody responsiveness to CTB depended on the H-2 haplotype of the strain: strains with the H-2b haplotype were high responders, those with H-2a, H-2k and H-2s were low responders, and those with H-2d were intermediate. The responsiveness to HA was also related to the H-2 haplotype: H-2a and H-2k strains were high responders, H-2b and H-2s strains were low responders, and H-2d strains were intermediate. However, the degree of the adjuvant effect of CTB on anti-HA antibody responses was almost constant, regardless of the H-2 haplotype or other genetic backgrounds of the strain. The lack of genetic restriction of the adjuvant effect would be favourable for application of CTB-combined HA vaccine to humans, who are genetically diverse. Moreover, these results suggest that the immunogenicity and adjuvanticity of CTB differ essentially in their mechanisms.This publication has 30 references indexed in Scilit:
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