Biomaterial Database

Immunoglobulin M antibodies in transplanted human hearts. 1993

C A Labarrere, and D Pitts, and H Halbrook, and W P Faulk

Center for Reproduction and Transplantation Immunology, Methodist Hospital of Indiana, Indianapolis 46202.

We have studied 56 human hearts before and after transplantation for the presence of immunoglobulin M. None of the 56 time-zero biopsy specimens studied contained immunocytochemically detectable immunoglobulin M, but they all had immunoglobulin M deposits on vascular endothelial cells after transplantation. The vascular location of immunoglobulin M was confirmed in double-antibody experiments with antibodies to von Willebrand factor and immunoglobulin M. None of the immunoglobulin M antibody reactivity was shown to colocalize with complement. Biopsy specimens from 29 of the 56 patients contained abundant deposits of immunoglobulin M. These patients were clinically stable, and only one of them has died. Biopsy specimens from 27 of the 56 patients had scant deposits of immunoglobulin M. These patients were clinically unstable; eight of them have died, and one has undergone retransplantation. In addition, biopsy specimens from stable allografts contained fewer fibrin deposits than biopsy specimens from unstable grafts, suggesting a protective role for non-complement fixing immunoglobulin M. The observation that immunoglobulin deposits were found soon after transplantation prompts us to consider them to be natural antibodies. Efforts to identify the antigen for immunoglobulin M natural antibodies in heart transplant recipients are currently under study.

UI	MeSH Term	Description	Entries
D007075	Immunoglobulin M	A class of immunoglobulin bearing mu chains (IMMUNOGLOBULIN MU-CHAINS). IgM can fix COMPLEMENT. The name comes from its high molecular weight and originally was called a macroglobulin.	Gamma Globulin, 19S,IgM,IgM Antibody,IgM1,IgM2,19S Gamma Globulin,Antibody, IgM
D009206	Myocardium	The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow.	Muscle, Cardiac,Muscle, Heart,Cardiac Muscle,Myocardia,Cardiac Muscles,Heart Muscle,Heart Muscles,Muscles, Cardiac,Muscles, Heart
D003331	Coronary Vessels	The veins and arteries of the HEART.	Coronary Arteries,Sinus Node Artery,Coronary Veins,Arteries, Coronary,Arteries, Sinus Node,Artery, Coronary,Artery, Sinus Node,Coronary Artery,Coronary Vein,Coronary Vessel,Sinus Node Arteries,Vein, Coronary,Veins, Coronary,Vessel, Coronary,Vessels, Coronary
D004730	Endothelium, Vascular	Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components.	Capillary Endothelium,Vascular Endothelium,Capillary Endotheliums,Endothelium, Capillary,Endotheliums, Capillary,Endotheliums, Vascular,Vascular Endotheliums
D005455	Fluorescent Antibody Technique	Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (FLUORESCENT ANTIBODY TECHNIQUE, DIRECT) or an indirect method, by formation of antigen-antibody complex which is then labeled with fluorescein-conjugated anti-immunoglobulin antibody (FLUORESCENT ANTIBODY TECHNIQUE, INDIRECT). The tissue is then examined by fluorescence microscopy.	Antinuclear Antibody Test, Fluorescent,Coon's Technique,Fluorescent Antinuclear Antibody Test,Fluorescent Protein Tracing,Immunofluorescence Technique,Coon's Technic,Fluorescent Antibody Technic,Immunofluorescence,Immunofluorescence Technic,Antibody Technic, Fluorescent,Antibody Technics, Fluorescent,Antibody Technique, Fluorescent,Antibody Techniques, Fluorescent,Coon Technic,Coon Technique,Coons Technic,Coons Technique,Fluorescent Antibody Technics,Fluorescent Antibody Techniques,Fluorescent Protein Tracings,Immunofluorescence Technics,Immunofluorescence Techniques,Protein Tracing, Fluorescent,Protein Tracings, Fluorescent,Technic, Coon's,Technic, Fluorescent Antibody,Technic, Immunofluorescence,Technics, Fluorescent Antibody,Technics, Immunofluorescence,Technique, Coon's,Technique, Fluorescent Antibody,Technique, Immunofluorescence,Techniques, Fluorescent Antibody,Techniques, Immunofluorescence,Tracing, Fluorescent Protein,Tracings, Fluorescent Protein
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014841	von Willebrand Factor	A high-molecular-weight plasma protein, produced by endothelial cells and megakaryocytes, that is part of the factor VIII/von Willebrand factor complex. The von Willebrand factor has receptors for collagen, platelets, and ristocetin activity as well as the immunologically distinct antigenic determinants. It functions in adhesion of platelets to collagen and hemostatic plug formation. The prolonged bleeding time in VON WILLEBRAND DISEASES is due to the deficiency of this factor.	Factor VIII-Related Antigen,Factor VIIIR-Ag,Factor VIIIR-RCo,Plasma Factor VIII Complex,Ristocetin Cofactor,Ristocetin-Willebrand Factor,von Willebrand Protein,Factor VIII Related Antigen,Factor VIIIR Ag,Factor VIIIR RCo,Ristocetin Willebrand Factor
D016027	Heart Transplantation	The transference of a heart from one human or animal to another.	Cardiac Transplantation,Grafting, Heart,Transplantation, Cardiac,Transplantation, Heart,Cardiac Transplantations,Graftings, Heart,Heart Grafting,Heart Graftings,Heart Transplantations,Transplantations, Cardiac,Transplantations, Heart