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  • Title: Kinetics of cellular and humoral immunity in a successful case of positive crossmatch kidney transplantation: a case report.
    Author: Tanimine N, Ide K, Yamashita M, Tanaka Y, Igarashi Y, Banshodani M, Tazawa H, Basnet NB, Doskali M, Onoe T, Tashiro H, Ohdan H.
    Journal: Transplant Proc; 2011; 43(6):2411-4. PubMed ID: 21839279.
    Abstract:
    A positive crossmatch remains one of the major barriers to successful kidney transplantation. Highly sensitized patients are at greater risk of hyperacute rejection and subsequent graft loss after transplantation. Although recent advances in desensitization therapy allow kidney transplantation in these patients, the success rate is quite low. Herein, we have reported a successful case of positive crossmatch living donor kidney transplantation using a desensitization protocol with an immune monitoring assay. A 42-year-old woman with end-stage renal disease due to IgA nephropathy had been on hemodialysis for 36 months. She showed positive T-cell and B-cell cytotoxic crossmatches with her husband owing to pretransplantation blood transfusions. We performed a preconditioning regimen comprising a single dose of rituximab (375 mg/m(2)) combined with double-filtration plasmapheresis (DFPP) followed by low doses of intravenous immunoglobulin (DFPP/IVIG treatment). Tacrolimus (target trough level, 5-10 ng/mL) and mycophenolate mofetil (1500 mg/body) were started 2 weeks before the DFPP/IVIG treatment. After 6 DFPP/IVIG sessions, the crossmatch became negative. An induction quadruple immunosuppression protocol included tacrolimus, mycophenolate mofetil, basiliximab, and methylprednisolone. After the transplantation, the patient's immune status was evaluated regularly by mixed lymphocyte reactions (MLR) using an intracellular carboxyfluorescein diacetate succinimidyl ester (CFSE)-labeling technique (CFSE-MLR assay) and immunosuppressant therapy was adjusted accordingly. During the observation period, neither antibody-mediated rejection nor acute cellular rejection was encountered in this patient.
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