title: Preferential induction of polyclonal IgA secretion by murine Peyer's patch dendritic cell-T cell mixtures.
abstract: Polyclonal IgA secretion is inducible in murine B cells when DC-T from Peyer's patches (PP) provide the inducing stimulus. PP DC-T, which are composed predominantly of dendritic cells and Lyt-1+ T cells, are capable of dramatic augmentation of IgA secretion by PP or spleen B cells with minimal induction of IgM secretion. DC-T from spleen, however, are incapable of augmenting IgA secretion by either PP or spleen B cells. The level of IgA secretion is dependent upon the dose of DC-T providing the inducing stimulus and reaches a plateau with DC-T:B ratios of less than 1:1. This system for preferential induction of IgA responses should permit elucidation of cellular mechanisms involved in regulation of IgA secretion.
mesh_terms: D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology; D002452:Cell Count; D002999:Clone Cells / Q000378:metabolism; D007070:Immunoglobulin A / Q000096:biosynthesis*; D007075:Immunoglobulin M / Q000096:biosynthesis; D008213:Lymphocyte Activation; D008211:Lymphocyte Cooperation; D008221:Lymphoid Tissue / Q000166:cytology*; D051379:Mice; D008809:Mice, Inbred C3H; D008934:Mitogens / Q000494:pharmacology; D010581:Peyer's Patches / Q000166:cytology* / Q000378:metabolism; D013601:T-Lymphocytes / Q000276:immunology / Q000378:metabolism*
chemical_list: D007070:Immunoglobulin A; D007075:Immunoglobulin M; D008934:Mitogens