PMID- 32441827 OWN - NLM STAT- MEDLINE DCOM- 20210624 LR - 20210624 IS - 1432-2277 (Electronic) IS - 0934-0874 (Print) IS - 0934-0874 (Linking) VI - 33 IP - 9 DP - 2020 Sep TI - Molecular-level HLA mismatch is associated with rejection and worsened graft survival in heart transplant recipients - a retrospective study. PG - 1078-1088 LID - 10.1111/tri.13657 [doi] AB - The aim was to evaluate the association of molecular-level human leukocyte antigen (HLA) mismatching with post-transplant graft survival, rejection, and cardiac allograft vasculopathy (CAV). We retrospectively analyzed all primary cardiac transplant recipients between 01/1984-06/2016. 1167 patients fulfilled inclusion criteria and had HLA typing information available. In 312 donor-recipient pairs, typing at serological split antigen level was available. We used the Epitope MisMatch Algorithm to calculate the number of amino acid differences in antibody-verified HLA eplets (amino acid mismatch load (AAMM)) between donor and recipient. Patients with a higher HLA-DR AAMM load had inferior 1-year graft survival (hazard ratio [HR], 1.14; 95% confidence interval [CI], 1.01-1.28). The HLA-AB AAMM load showed no impact on graft survival. In the subgroup with available split-level information, we observed an inferior graft survival for a higher HLA-DR AAMM load 3 months after transplantation (HR, 1.22; 95% CI, 1.04-1.44) and a higher risk for rejection for an increasing HLA-AB (HR, 1.70; 95% CI, 1.29-2.24) and HLA-DR (HR, 1.32; 95% CI, 1.09-1.61) AAMM load. No impact on the development of CAV was found. Molecular-level HLA mismatch analysis could serve as a tool for risk stratification after heart transplantation and might take us one step further into precision medicine. CI - (c) 2020 The Authors. Transplant International published by John Wiley & Sons Ltd on behalf of Steunstichting ESOT. FAU - Osorio-Jaramillo, Emilio AU - Osorio-Jaramillo E AUID- ORCID: 0000-0002-2549-8816 AD - Division of Cardiac Surgery, Medical University of Vienna, Vienna, Austria. FAU - Haasnoot, Geert W AU - Haasnoot GW AD - Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, The Netherlands. FAU - Kaider, Alexandra AU - Kaider A AD - Center for Medical Statistics, Informatics and Intelligent Systems, Medical University of Vienna, Vienna, Austria. FAU - Schaefer, Anne-Kristin AU - Schaefer AK AD - Division of Cardiac Surgery, Medical University of Vienna, Vienna, Austria. FAU - Haberl, Thomas AU - Haberl T AUID- ORCID: 0000-0003-1370-0746 AD - Division of Cardiac Surgery, Medical University of Vienna, Vienna, Austria. FAU - Goekler, Johannes AU - Goekler J AUID- ORCID: 0000-0003-4509-2482 AD - Division of Cardiac Surgery, Medical University of Vienna, Vienna, Austria. FAU - Angleitner, Philipp AU - Angleitner P AUID- ORCID: 0000-0002-8378-0633 AD - Division of Cardiac Surgery, Medical University of Vienna, Vienna, Austria. FAU - Moayedifar, Roxana AU - Moayedifar R AD - Division of Cardiac Surgery, Medical University of Vienna, Vienna, Austria. FAU - Zuckermann, Andreas AU - Zuckermann A AUID- ORCID: 0000-0002-8054-8150 AD - Division of Cardiac Surgery, Medical University of Vienna, Vienna, Austria. FAU - Fischer, Gottfried F AU - Fischer GF AUID- ORCID: 0000-0002-3442-3680 AD - Department for Blood Group Serology and Transfusion Medicine, Medical University of Vienna, Vienna, Austria. FAU - Laufer, Guenther AU - Laufer G AUID- ORCID: 0000-0001-7257-110X AD - Division of Cardiac Surgery, Medical University of Vienna, Vienna, Austria. FAU - Claas, Frans H J AU - Claas FHJ AUID- ORCID: 0000-0003-4157-6201 AD - Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, The Netherlands. AD - Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Antwerp, Belgium. FAU - Aliabadi-Zuckermann, Arezu Z AU - Aliabadi-Zuckermann AZ AUID- ORCID: 0000-0002-2808-7158 AD - Division of Cardiac Surgery, Medical University of Vienna, Vienna, Austria. LA - eng PT - Journal Article DEP - 20200623 PL - Switzerland TA - Transpl Int JT - Transplant international : official journal of the European Society for Organ Transplantation JID - 8908516 RN - 0 (HLA Antigens) SB - IM CIN - Transpl Int. 2020 Nov;33(11):1551-1552. PMID: 32652652 MH - Graft Rejection MH - *Graft Survival MH - HLA Antigens MH - *Heart Transplantation MH - Histocompatibility Testing MH - Humans MH - Retrospective Studies PMC - PMC7540475 OTO - NOTNLM OT - allograft rejection OT - antibody-verified HLA eplets OT - cardiac allograft vasculopathy OT - graft survival OT - heart transplantation OT - precision medicine COIS- The authors declare no conflicts of interest. EDAT- 2020/05/23 06:00 MHDA- 2021/06/25 06:00 PMCR- 2020/10/07 CRDT- 2020/05/23 06:00 PHST- 2020/02/04 00:00 [received] PHST- 2020/03/10 00:00 [revised] PHST- 2020/05/15 00:00 [accepted] PHST- 2020/05/23 06:00 [pubmed] PHST- 2021/06/25 06:00 [medline] PHST- 2020/05/23 06:00 [entrez] PHST- 2020/10/07 00:00 [pmc-release] AID - TRI13657 [pii] AID - 10.1111/tri.13657 [doi] PST - ppublish SO - Transpl Int. 2020 Sep;33(9):1078-1088. doi: 10.1111/tri.13657. Epub 2020 Jun 23.