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Year : 2022  |  Volume : 16  |  Issue : 2  |  Page : 220-224

Human leukocyte antigen-A, B, and DRB1 diversity in renal transplant patients and donors: A single-center retrospective observational study

Department of Molecular Genetics, Chimera Transplant Research Foundation, New Delhi, India

Correspondence Address:
Dr. Vikash Chandra Mishra
Department of Molecular Genetics, Chimera Transplant Research Foundation, South Extension Part-II, New Delhi
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijot.ijot_102_20

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Background: The understanding of transplant acceptance or rejection derives directly from knowing human leukocyte antigen (HLA) involved in the immune response. The HLA of the major histocompatibility complex contains a numerous family of genes located on the short arm of the chromosome number 6 and divided majorly into two classes, Class I (HLA-A, B, and C) and Class II (HLA-DR, DQ, and DP). The detection and detailed information of these histocompatibility genes are essential for the better outcome of organ transplants. Aims and Objectives: The aim of the present study is to analyze the frequencies of HLA-A, B, and DRB1 in chronic kidney disease (CKD) patients and their prospective donors as well as to see the prevalence of heterogenicity. Materials and Methods: A total of 264 patients diagnosed with CKD and 333 potential donors were studied retrospectively in the present study. All these cases were analyzed for HLA-A, B, and DRB1 loci typing by PCR-SSOP method based on the Luminex platform. Results: We identified 15 different alleles of HLA-A, 29 of HLA-B, and 13 of HLA-DRB1 amongst studied samples. Out of these identified HLA alleles, HLA-A*02, HLA-B*35, and HLA-DRB1*15 were more frequent as compared to others. The results showed significant heterogenicity in the identified HLA-A, B, and DRB1alleles. Conclusion: The result highlights the diversity of HLA-A, B, and DRB1 alleles and is valuable as a reference for organ transplantations. Further, these findings can also guide in better donor selection and hence improved transplant outcome. In addition, this information could be a starting point for the development of an indigenous transplant assay kit.

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