title: Rapid detection of low levels of donor specific IgG by flow cytometry with single and dual colour fluorescence in renal transplantation.
abstract: Lymphocytotoxic immunoglobulin is routinely assayed before human renal transplantation. If IgG directed against donor T cells is detected in the serum of the potential recipient, transplantation is not performed as it is associated with a poor graft outcome. Poor sensitivity of the conventional assay has been postulated as being the cause of some graft failures. Two new flow cytometric assays are described which are more sensitive than the conventional test. The first assay requires manual separation of T and B lymphocytes and therefore takes a similar time to perform as the conventional assay. The second assay utilises a two-colour system and lymphocyte's separation is by fluorescence. This assay takes half the time to perform, thereby decreasing graft ischaemic time before transplantation.
mesh_terms: D004306:Dose-Response Relationship, Immunologic; D005434:Flow Cytometry; D005455:Fluorescent Antibody Technique; D006650:Histocompatibility Testing / Q000379:methods*; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis*; D007518:Isoantibodies / Q000032:analysis*; D016030:Kidney Transplantation; D013997:Time Factors; D014019:Tissue Donors
chemical_list: D007074:Immunoglobulin G; D007518:Isoantibodies