title: Ultrastructural localization of histamine in human basophils and mast cells; changes associated with anaphylactic degranulation and recovery demonstrated with a diamine oxidase-gold probe.
abstract: Subcellular sites of histamine in purified human lung mast cells and human peripheral blood basophils were determined using a newly developed enzyme-gold affinity method for ultrastructural analysis. The evolving morphologies of regulated secretion and recovery from regulated secretion in each cell showed that granule stores of histamine were released at early times after stimulation and re-accumulated at later times post-stimulus. Renewal of histamine granule stores occurred by multiple mechanisms including synthesis and conservation of granule materials and membranes.
authors.affiliation: Department of Pathology, Beth Israel Hospital, Massachusetts 02215, USA.
authors.forename: A M
authors.initials: AM
authors.lastname: Dvorak
mesh_terms: D006631:Amine Oxidase (Copper-Containing); D000707:Anaphylaxis / Q000378:metabolism; D001491:Basophils / Q000276:immunology / Q000648:ultrastructure*; D015550:Cell Degranulation; D002478:Cells, Cultured; D006046:Gold; D006632:Histamine / Q000032:analysis*; D006651:Histocytochemistry / Q000379:methods*; D006801:Humans; D008168:Lung / Q000166:cytology; D008407:Mast Cells / Q000276:immunology / Q000648:ultrastructure*
chemical_list: D006046:Gold; D006632:Histamine; D006631:Amine Oxidase (Copper-Containing)