PMID- 28348361 OWN - NLM STAT- MEDLINE DCOM- 20170926 LR - 20190609 IS - 2329-0358 (Electronic) IS - 1425-9524 (Linking) VI - 22 DP - 2017 Mar 28 TI - The Impact of Donor-Specific Anti-Human Leukocyte Antigen (HLA) Antibody Rebound on the Risk of Antibody Mediated Rejection in Sensitized Kidney Transplant Recipients. PG - 166-176 AB - BACKGROUND Donor-specific anti-HLA antibody (DSA) detected on Luminex-based single antigen assay (LSA) has become the subject of desensitization based upon the results of previous studies. We retrospectively investigated the impact of preoperative DSA on the incidence of antibody mediated rejection (AMR) in patients desensitized using a protocol based on rituximab and rabbit antithymocyte globulin (rATG). MATERIAL AND METHODS Nine patients (Group 1, 9/327, 2.8%) were complement dependent cytotoxicity crossmatch (CDC-XM) positive and underwent desensitization with rituximab (375 mg/m(2)), intravenous immunoglobulin (IVIG; 400 mg/kg), plasmapheresis, and rATG. Twenty-two patients (Group 2, 22/327, 6.7%) were CDC-XM negative but DSA positive on LSA and had received desensitization with rituximab and rATG, while 55 patients (Group 3, 55/327, 16.8%) were CDC-XM and DSA negative with a calculated panel reactive antibody (cPRA) >/=50%. Another 241 patients (Group 4, 241/327, 73.7%) were CDC-XM and DSA negative with a cPRA <50%. RESULTS Recipients with DSA (Group 2) experienced more AMR than other groups (p<0.01). More de novo DSAs also developed in Group 2 (p<0.001). The mean fluorescence intensity (MFI) of DSA of patients with AMR tended to rebound (p=0.01). CONCLUSIONS Patients who were CDC-XM negative but DSA positive status were at a higher risk of developing AMR even though they had received desensitization with rATG and rituximab. A more intense desensitization protocol is needed for these recipients. Patients with MFI rebound of DSA should be carefully monitored for the risk of AMR. FAU - Lee, Kyo Won AU - Lee KW AD - Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Park, Jae Berm AU - Park JB AD - Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Cho, Chan Woo AU - Cho CW AD - Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Lee, Nuri AU - Lee N AD - Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Yoo, Heejin AU - Yoo H AD - Biostatistics and Clinical Epidemiology Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, South Korea. FAU - Kim, Kyunga AU - Kim K AD - Biostatistics and Clinical Epidemiology Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, South Korea. FAU - Park, Hyojun AU - Park H AD - Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Kang, Eun Suk AU - Kang ES AD - Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Huh, Wooseong AU - Huh W AD - Division of Nephrology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. FAU - Kim, Sungjoo AU - Kim S AD - Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea. LA - eng PT - Journal Article DEP - 20170328 PL - United States TA - Ann Transplant JT - Annals of transplantation JID - 9802544 RN - 0 (Antilymphocyte Serum) RN - 0 (HLA Antigens) RN - 4F4X42SYQ6 (Rituximab) SB - IM MH - Adult MH - Antilymphocyte Serum/therapeutic use MH - Female MH - Graft Rejection/*immunology MH - HLA Antigens/*immunology MH - Histocompatibility Testing MH - Humans MH - Kidney Failure, Chronic/immunology/*surgery MH - Kidney Transplantation/*methods MH - Male MH - Middle Aged MH - Plasmapheresis MH - Retrospective Studies MH - Rituximab/therapeutic use MH - *Transplant Recipients MH - Young Adult EDAT- 2017/03/30 06:00 MHDA- 2017/09/28 06:00 CRDT- 2017/03/29 06:00 PHST- 2017/03/29 06:00 [entrez] PHST- 2017/03/30 06:00 [pubmed] PHST- 2017/09/28 06:00 [medline] AID - 902266 [pii] AID - 10.12659/aot.902266 [doi] PST - epublish SO - Ann Transplant. 2017 Mar 28;22:166-176. doi: 10.12659/aot.902266.