PMID- 30712055 OWN - NLM STAT- MEDLINE DCOM- 20190322 LR - 20200225 IS - 1643-3750 (Electronic) IS - 1234-1010 (Print) IS - 1234-1010 (Linking) VI - 25 DP - 2019 Feb 3 TI - Comparison of Physical Crossmatch and Virtual Crossmatch to Identify Preexisting Donor-Specific Human Leukocyte Antigen (HLA) Antibodies and Outcome Following Kidney Transplantation. PG - 952-961 LID - 10.12659/MSM.914902 [doi] AB - BACKGROUND Physical crossmatch (PXM) and virtual crossmatch (VXM) are applied to identify preexisting donor-specific human leukocyte antigen (HLA) antibodies in patients awaiting kidney transplantation. Recently, high-resolution epitope analysis has emerged as a novel strategy for VXM. A retrospective clinical study compared PXM with VXM before kidney transplantation and recipient outcome following transplantation. MATERIAL AND METHODS Between August 2017 and March 2018, 239 patients underwent crossmatching and 94 patients received a donor kidney. A complement-dependent cytotoxicity (CDC) PXM assay and VXM using serological and epitope analysis identified donor-specific antibodies (DSA). Crossmatch results and clinical outcome at 3 months were compared. RESULTS VXM identified serological DSA (sDSA), verified epitope DSA, and total epitope DSA in 74 (31.0%), 39 (16.3%), and 49 (20.5%) cases, respectively. Eleven cases (4.6%) had a positive PXM detected by the CDC assay. Of 94 kidney transplant recipients, 21 had preexisting sDSA but were negative in PXM; there was 1 case of delayed graft function (DGF) and no cases of hyperacute rejection or acute rejection. Of the rest of the 73 recipients who were negative for sDSA, 8 had acute rejection (P=0.253) and 19 had DGF (P=0.037). No significant differences were found in graft survival at 3 months. CONCLUSIONS High-resolution epitope analysis identified fewer cases with DSA compared with serological analysis. Because patients with and without sDSA had a similar short-term outcome in the setting of a negative PXM, the presence of preexisting sDSA, determined by VXM, should not be an absolute contraindication for kidney transplantation. FAU - Peng, Bo AU - Peng B AD - The Transplantation Center of The Third Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland). AD - Engineering and Technology Research Center for Transplantation Medicine of The National Ministry of Health, Changsha, Hunan, China (mainland). FAU - Zhuang, Quan AU - Zhuang Q AD - The Transplantation Center of The Third Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland). AD - Engineering and Technology Research Center for Transplantation Medicine of The National Ministry of Health, Changsha, Hunan, China (mainland). FAU - Yu, Meng AU - Yu M AD - The Transplantation Center of The Third Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland). AD - Engineering and Technology Research Center for Transplantation Medicine of The National Ministry of Health, Changsha, Hunan, China (mainland). FAU - Li, Junhui AU - Li J AD - The Transplantation Center of The Third Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland). AD - Engineering and Technology Research Center for Transplantation Medicine of The National Ministry of Health, Changsha, Hunan, China (mainland). FAU - Liu, Yun AU - Liu Y AD - The Transplantation Center of The Third Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland). AD - Engineering and Technology Research Center for Transplantation Medicine of The National Ministry of Health, Changsha, Hunan, China (mainland). FAU - Zhu, Lijun AU - Zhu L AD - The Transplantation Center of The Third Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland). AD - Engineering and Technology Research Center for Transplantation Medicine of The National Ministry of Health, Changsha, Hunan, China (mainland). FAU - Ming, Yingzi AU - Ming Y AD - The Transplantation Center of The Third Xiangya Hospital, Central South University, Changsha, Hunan, China (mainland). AD - Engineering and Technology Research Center for Transplantation Medicine of The National Ministry of Health, Changsha, Hunan, China (mainland). LA - eng PT - Journal Article DEP - 20190203 PL - United States TA - Med Sci Monit JT - Medical science monitor : international medical journal of experimental and clinical research JID - 9609063 RN - 0 (Antibodies) RN - 0 (HLA Antigens) RN - 0 (Histocompatibility Antigens Class I) SB - IM MH - Adult MH - Antibodies/immunology MH - Blood Grouping and Crossmatching/*methods MH - Female MH - Graft Rejection/immunology MH - Graft Survival/immunology MH - HLA Antigens/blood/*classification/physiology MH - Histocompatibility Antigens Class I/immunology MH - Humans MH - Kidney Transplantation/methods MH - Male MH - Middle Aged MH - Retrospective Studies MH - Tissue Donors PMC - PMC6369651 COIS- Conflict of interest None. EDAT- 2019/02/04 06:00 MHDA- 2019/03/23 06:00 PMCR- 2019/02/03 CRDT- 2019/02/04 06:00 PHST- 2019/02/04 06:00 [entrez] PHST- 2019/02/04 06:00 [pubmed] PHST- 2019/03/23 06:00 [medline] PHST- 2019/02/03 00:00 [pmc-release] AID - 914902 [pii] AID - 10.12659/MSM.914902 [doi] PST - epublish SO - Med Sci Monit. 2019 Feb 3;25:952-961. doi: 10.12659/MSM.914902.