title: Human colostral cells. II. Response to mitogens.
abstract: The ability of colostral lymphocytes to respond to pokeweed mitogen, phytohemagglutinin, or Epstein-Barr virus was examined. None of these mitogens induced colostral cells to differentiate into immunoglobulin-containing cells, either in the absence or in the presence of mitomycin C-treated mononuclear cells or T-cell-enriched populations from peripheral blood. Cocultivation of mononuclear cells from the peripheral blood of normal adults with mitomycin C-treated colostral cells resulted in a marked suppression of the generation of immunoglobulin-containing cells in response to pokeweed mitogen. The inhibitory effect was seen in peripheral blood mononuclear cell:colostral cell ratios of 1:1, 5:1, and 10:1. However, colostral cells had little effect on the ability of peripheral blood lymphocytes to proliferate in response to phytohemagglutinin or to allogeneic stimulation.
mesh_terms: D002455:Cell Division / Q000187:drug effects; D002478:Cells, Cultured; D003126:Colostrum / Q000166:cytology / Q000276:immunology*; D006801:Humans; D007136:Immunoglobulins / Q000096:biosynthesis; D008213:Lymphocyte Activation / Q000187:drug effects; D008934:Mitogens / Q000494:pharmacology; D008937:Mitomycins / Q000494:pharmacology; D013936:Thymidine / Q000378:metabolism
chemical_list: D007136:Immunoglobulins; D008934:Mitogens; D008937:Mitomycins; D013936:Thymidine