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  • Title: Influence of Igh-C- and MHC-linked genes on the activity of immunoglobulin-recognizing T cells.
    Author: Bikoff E, Bona CA.
    Journal: J Immunol; 1983 Jul; 131(1):103-8. PubMed ID: 6190899.
    Abstract:
    BALB/c Lyt-1+ cells that proliferate in response to NP-modified BALB/c Ig fail to respond to BALB/c Ig modified by a different hapten, TNP. By contrast, when NP-modified BALB/c Ig is used as the immunogen in C.B-20 mice, a strain congenic with BALB/c but expressing the Ighb allotype of C57BL/6 (B6), a partial cross-reaction between NP- and TNP-BALB/c Ig is observed. Similarly, strains expressing different Igh haplotypes also show distinct reactivities toward NP-B6 Ig and NP-modified myeloma proteins. Thus, the proliferative response to NP-modified Ig is regulated by Igh-linked genes. In this paper, we also characterize the T cell proliferative response to IgG2a of the b allotype. We show that allotypic determinants on this molecule are recognized in association with self MHC-encoded gene products and that responsiveness is controlled by MHC-linked Ir genes. Thus, products of MHC-linked genes also influence the activity of Ig-recognizing T cells. Taken together, experiments described in this report suggest that T cells directed against immunogenic determinants on antibody molecules are governed by the same rules as T cells that respond to conventional antigens.
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