title: Human necrotizing vasculitis: immunoglobulins and complement in vessel walls of cutaneous lesions and normal skin.
abstract: Immunoglobulins and C3 were detected by immunofluorescence in the blood vessel walls of biopsies of clinically normal skin in patients with active necrotizing vasculitis. Of the 13 patients studied, 9 had C3 and 6 of these had IgM or IgA in biopsies of lesions of vasculitis. In adjacent clinically normal skin, 7 patients had C3 and 3 of these also had IgM or IgA. These findings support the hypothesis that immunoglobulins and complement are present in vessels of some patients prior to chemotaxis of polymorphonuclear leukocytes and the resulting inflammatory purpuric lesions so characteristic of necrotizing vasculitis.
mesh_terms: D000936:Antigen-Antibody Complex; D001808:Blood Vessels / Q000276:immunology* / Q000473:pathology; D002097:C-Reactive Protein / Q000032:analysis; D003176:Complement C3 / Q000032:analysis; D003165:Complement System Proteins / Q000032:analysis*; D005340:Fibrinogen / Q000032:analysis; D005455:Fluorescent Antibody Technique; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007136:Immunoglobulins / Q000032:analysis*; D010488:Polyarteritis Nodosa / Q000276:immunology*; D011414:Properdin / Q000032:analysis; D012867:Skin / Q000098:blood supply*; D013997:Time Factors
chemical_list: D000936:Antigen-Antibody Complex; D003176:Complement C3; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007136:Immunoglobulins; D011414:Properdin; D005340:Fibrinogen; D003165:Complement System Proteins; D002097:C-Reactive Protein