title: In vitro induction of B cell differentiation in canine mononuclear blood cells: bacterial lipopolysaccharide modulates the action of pokeweed mitogen.
abstract: Pokeweed mitogen (PWM) was shown to induce the generation of plasmacytoid cells (PC) from canine peripheral blood mononuclear cells in vitro. PC were detected by immunofluorescence staining of cytoplasmic immunoglobulin. Optimal culture conditions for PC formation were established and the range of the PC response in normal dogs assessed. Addition to PWM of bacterial lipopolysaccharide enhanced PC formation in most instances. This occurred in the absence of increased cell proliferation and without altering the time course of the response. Mitogen-induced PC generation may provide a useful tool for delineating the capacity of canine blood cells to mount a humoral immune response.
mesh_terms: D000818:Animals; D001402:B-Lymphocytes / Q000166:cytology*; D002454:Cell Differentiation / Q000187:drug effects*; D002478:Cells, Cultured; D004285:Dogs; D004357:Drug Synergism; D005260:Female; D008070:Lipopolysaccharides / Q000494:pharmacology*; D008213:Lymphocyte Activation; D008297:Male; D010950:Plasma Cells / Q000166:cytology; D011043:Pokeweed Mitogens / Q000494:pharmacology*
chemical_list: D008070:Lipopolysaccharides; D011043:Pokeweed Mitogens