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Keywords:

  • histocompatibility and immunogenetics;
  • presensitization

Summary

The introduction of new sensitive assays for the detection of HLA antibodies on basis of their binding to isolated HLA molecules has got an enormous impact on the decision-making process with respect to donor selection for sensitized patients. In the past, when only complement-dependent cytotoxicity was used as a tool to define HLA alloantibodies, the presence of donor specific antibodies (DSA) before transplantation was considered a contraindication for renal transplantation with that donor. The interpretation of the current DSA results is far more difficult and leads to a lot of discussions and controversy. The problems associated with the use of solid phase assays for clinical decision making and possible solutions are discussed.