A defect in the humoral immune response to protein antigens and haptens in immunoglobulin mu heavy-chain transgenic mice.

Published

Journal Article

We have examined the antibody response in mice expressing a functionally rearranged mu Ig heavy chain derived from a hybridoma antibody with specificity for the hapten 4-hydroxy-3-nitrophenyl (NP). Transgenic mice and their normal littermates were immunized with the antigens NP-OVA, the synthetic polypeptide (Tyr,Glu)-Ala-Lys ((T,G)-A-L), or saline. The presence of serum antibodies to NP-BSA, OVA, (T,G)-A-L, and BSA was examined by ELISA. Sera were evaluated prior to immunization and at periods of up to 4 months following immunization. Prior to immunization, transgenic mice had high levels of IgM anti-NP antibody but no detectable antibody to the other antigens. Both the primary and secondary antibody responses of transgenic mice to NP, OVA, and (T,G)-A-L were depressed when compared with the response of non-transgenic mice. Because of reports that these transgenic mice have increased proportions of CD5 + B-cells, a subpopulation associated with the production of autoantibodies, we examined these mice for the production of both IgG and IgM rheumatoid factors and anti-DNA antibodies. Transgenic mice had a modest increase in the spontaneous production of IgM anti-DNA. These data demonstrate a functional defect in the humoral immune response of mu transgenic mice.

Full Text

Duke Authors

Cited Authors

  • Pincus, SH; Cole, R; Pisetsky, DS

Published Date

  • June 1992

Published In

Volume / Issue

  • 29 / 6

Start / End Page

  • 801 - 806

PubMed ID

  • 1603097

Pubmed Central ID

  • 1603097

International Standard Serial Number (ISSN)

  • 0161-5890

Digital Object Identifier (DOI)

  • 10.1016/0161-5890(92)90190-9

Language

  • eng

Conference Location

  • England