Successful Deceased Donor Kidney Transplantation in a Highly Sensitized Patient after Reclassification of Unacceptable Antigens Based on HLA Epitope Analysis

التفاصيل البيبلوغرافية
العنوان: Successful Deceased Donor Kidney Transplantation in a Highly Sensitized Patient after Reclassification of Unacceptable Antigens Based on HLA Epitope Analysis
المؤلفون: Alferes,Daniela, Tafulo,Sandra, Tavares,Isabel, Nunes,Ana Teresa, Rocha,Ana, Bustorff,Manuela, Sampaio,Susana
بيانات النشر: Sociedade Portuguesa de Nefrologia, 2022.
سنة النشر: 2022
مصطلحات موضوعية: Graft Survival, HLA Antigens/immunology Histocompatibility Testing, Kidney Transplantation/immunology
الوصف: For patients with end stage renal disease, kidney transplant offers significant survival and quality-of-life advantages compared with dialysis. But for patients seeking transplant who are highly sensitized, waiting times have traditionally been long and options limited. We present the case of a 34-year-old hypersensitized female who underwent renal retransplantation. Histocompatibility tests revealed a calculated panel-reactive antibody of 99.53% with multiple antibodies against class I and II human leucocyte antigens and an eplet analysis was performed. The donor’s potential unacceptable antigens were re-defined and the calculated panel-reactive antibody decreased to 88.38%. After one month the patient received a deceased-donor kidney transplant. Complement dependent cytotoxicity crossmatch was negative; virtual crossmatch and flow cytometry crossmatch with historical serum were positive. High-dose intravenous immunoglobulin and rituximab were added to the thymoglobulin-based induction immunosuppression. Three donor-specific antibodies were detected and plasmapheresis was performed. Renal allograft biopsy revealed no manifestations of rejection. Repeated testing observed a decrease in donor-specific antibodies median fluorescence intensity values. Four months post-transplant, the patient remained with normal graft function without proteinuria. She is receiving a standard maintenance immunosuppression regime with prednisolone, mycophenolate mofetil and tacrolimus. The careful discussion among the transplantation center and histocompatibility laboratory in association with intense immunosuppression and close laboratory monitoring allowed a successful human leukocyte antigen-incompatible deceased donor kidney transplantation in the most critical phase for the occurrence of humoral rejection. It is noteworthy that the new histocompatibility and immunogenetics methodologies provide a more affirmative and comprehensive assessment of mismatch acceptability.
نوع الوثيقة: Report
وصف الملف: text/html
اللغة: English
العلاقة: http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-01692022000400254Test
الإتاحة: http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-01692022000400254Test
حقوق: open access
رقم الانضمام: rcaap.com.SciELO.scielo.S0872.01692022000400254
قاعدة البيانات: RCAAP