PT - JOURNAL ARTICLE AU - Tesch, H AU - Müller, W AU - Rajewsky, K TI - Lymphokines regulate immunoglobulin isotype expression in an antigen-specific immune response. DP - 1986 Apr 15 TA - The Journal of Immunology PG - 2892--2895 VI - 136 IP - 8 4099 - http://www.jimmunol.org/content/136/8/2892.short 4100 - http://www.jimmunol.org/content/136/8/2892.full SO - J. Immunol.1986 Apr 15; 136 AB - The control of immunoglobulin class switching appears to involve T cell-derived lymphokines. Such lymphokines have been shown to affect isotype expression in polyclonally activated B cells. We show in this paper that the same lymphokines similarly control isotype expression in an antigen-specific response acting in concert with a "T cell independent" antigen. In this situation, B cell growth factor II (BCGF II) enhances the production of antigen-specific IgM antibodies, whereas the production of antigen-specific IgG1 antibodies is only observed in the presence of B cell differentiation factor gamma (BCDF gamma). These results suggest that these lymphokines (and perhaps additional ones) are involved in the control of isotype expression in antigen-specific responses.