Direct contact between macrophages and plasma cells in antibody production.
D000818:Animals; D000917:Antibody Formation; D000921:Antibody-Producing Cells / Q000276:immunology; D002450:Cell Communication; D007365:Intercellular Junctions / Q000648:ultrastructure; D008264:Macrophages / Q000276:immunology*; D051379:Mice; D008854:Microscopy, Electron; D010950:Plasma Cells / Q000276:immunology*