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Determination of immunoglobulin class of alloantibodies in sera from hypersensitized renal patients. 1994

K Baldy-Chudzik, and B Nowakowska, and H Matej, and P Kuśnierczyk
Laboratory of Tissue Immunology, Polish Academy of Sciences, Wrocław.

26 sera from hypersensitized renal patients were analysed for immunoglobulin class of alloantibodies. To assess the participation of IgM and IgG in alloreactivity, sera were treated with dithiothreitol (DTT) or Staphylococcus aureus protein A (SpA), respectively. Treatment with both DTT and SpA was also performed to test the possible contribution of other immunoglobulin classes. Immunological complexes which may mimic alloreactivity were excluded by polyethylene glycol (PEG) treatment. Immunochemically modified sera were tested against a panel of allogeneic B and T lymphocytes. IgG class alloantibodies reactive with B lymphocytes were found two times more frequently than those reactive with T lymphocytes. In 22% of sera only IgM alloantibodies were detected. No contribution of other immunoglobulin classes of immune complexes was seen. Our results show that DTT and SpA treatment are technically simple and reproducible methods of discriminating between IgG and IgM alloantibodies and can be recommended for routine use in clinical analysis of sera from hypersensitized renal patients awaiting kidney graft.

UI MeSH Term Description Entries
D007074 Immunoglobulin G The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B. Gamma Globulin, 7S,IgG,IgG Antibody,Allerglobuline,IgG(T),IgG1,IgG2,IgG2A,IgG2B,IgG3,IgG4,Immunoglobulin GT,Polyglobin,7S Gamma Globulin,Antibody, IgG,GT, Immunoglobulin
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
D007114 Immunization Deliberate stimulation of the host's immune response. ACTIVE IMMUNIZATION involves administration of ANTIGENS or IMMUNOLOGIC ADJUVANTS. PASSIVE IMMUNIZATION involves administration of IMMUNE SERA or LYMPHOCYTES or their extracts (e.g., transfer factor, immune RNA) or transplantation of immunocompetent cell producing tissue (thymus or bone marrow). Immunologic Stimulation,Immunostimulation,Sensitization, Immunologic,Variolation,Immunologic Sensitization,Immunological Stimulation,Sensitization, Immunological,Stimulation, Immunologic,Immunizations,Immunological Sensitization,Immunological Sensitizations,Immunological Stimulations,Sensitizations, Immunological,Stimulation, Immunological,Stimulations, Immunological,Variolations
D007163 Immunosorbent Techniques Techniques for removal by adsorption and subsequent elution of a specific antibody or antigen using an immunosorbent containing the homologous antigen or antibody. Immunoadsorbent Techniques,Immunoadsorbent Technics,Immunosorbent Technics,Immunoadsorbent Technic,Immunoadsorbent Technique,Immunosorbent Technic,Immunosorbent Technique,Technic, Immunoadsorbent,Technic, Immunosorbent,Technics, Immunoadsorbent,Technics, Immunosorbent,Technique, Immunoadsorbent,Technique, Immunosorbent,Techniques, Immunoadsorbent,Techniques, Immunosorbent
D007518 Isoantibodies Antibodies from an individual that react with ISOANTIGENS of another individual of the same species. Alloantibodies
D007674 Kidney Diseases Pathological processes of the KIDNEY or its component tissues. Disease, Kidney,Diseases, Kidney,Kidney Disease
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D011248 Pregnancy Complications Conditions or pathological processes associated with pregnancy. They can occur during or after pregnancy, and range from minor discomforts to serious diseases that require medical interventions. They include diseases in pregnant females, and pregnancies in females with diseases. Adverse Birth Outcomes,Complications, Pregnancy,Adverse Birth Outcome,Birth Outcome, Adverse,Complication, Pregnancy,Outcome, Adverse Birth,Pregnancy Complication

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