PMID- 25152111 OWN - NLM STAT- MEDLINE DCOM- 20150105 LR - 20140825 IS - 0253-2727 (Print) IS - 0253-2727 (Linking) VI - 35 IP - 8 DP - 2014 Aug TI - [The impact of HLA matching on outcome of single unit unrelated cord blood transplantation: a retrospective single center clinical analysis]. PG - 678-83 LID - 10.3760/cma.j.issn.0253-2727.2014.08.002 [doi] AB - OBJECTIVE: To retrospectively study the impact of human leukocyte antigen (HLA) mtyping mismatching between donor and recipient on outcome of single unit unrelated cord blood transplantation (sUCBT). METHODS: 139 patients with hematological malignancies received sUCBT in single center from May 2008 to August 2012 were analyzed. Of 139 patients at enrollment, 22 were 0 mismatched (mm), 69 1 mm, 48 2 mm by low-resolution HLA-A, -B, and high-resolution (HR) DRB1. All patients'conditioning regimen was myeloablative, and a combination of cyclosporine A (CsA) and mycophenolate mofetil (MMF) was given for graft-versus-host disease (GVHD) prophylaxis for all patients. The cohort of patients were followed-up until December 15, 2013. RESULTS: Patients of 0 mm had a statistically significant higher cumulative incidence of neutrophil engraftment by day 42 than those of 1 and 2 mm (P=0.042 and 0.002, respectively), patients of 0 mm with either a higher prefreeze total nucleated cell (TNC) dose (>5 x 10(7)/kg) or lower dose (<5 x 10(7)/kg) had a statistically significant higher cumulative incidence of neutrophil engraftment by day 42 than those of 2 mm (P=0.01 and 0.02, respectively). Patients of 0 mm had a statistically significant lower cumulative incidence of acute GVHD by day 100 than those of 1 and 2 mm (P=0.006 and 0.001, respectively). The difference of 1-year transplant-related mortality (TRM) between 0 and 2 mm patients was statistically significant (P=0.03). Patients of 2 mm received UCB units with a TNC dose less than 5 x 10(7)/kg had a higher 1-year TRM than of 0 mm patients (P=0.03). Patients of 0 mm had a statistically significant higher 3-year disease free survival (DFS) than those of 2 mm (P=0.03), compared with patients of 2 mm given CB units with a TNC dose less than 5 x 10(7)/kg, 0 mm patients and 1mm patients received UCB units with a TNC dose greater than 4 x 10(7)/kg had higher DFS rates (P=0.02 and 0.02, respectively). CONCLUSION: The HLA typing mismatching between donor and recipient had a great impact on neutrophil engraftment and long term DFS after sUCBT, 2mm cord blood unit with less TNC (<5 x 10(7)/kg) was not an optimum UCB graft. FAU - Sun, Guangyu AU - Sun G AD - Department of Hematology, Affiliated Provincial Hospital, Anhui Medical University, Hefei 230001, China. FAU - Sun, Zimin AU - Sun Z AD - Department of Hematology, Affiliated Provincial Hospital, Anhui Medical University, Hefei 230001, China. FAU - Liu, Huilan AU - Liu H AD - Department of Hematology, Affiliated Provincial Hospital, Anhui Medical University, Hefei 230001, China. FAU - Zheng, Changcheng AU - Zheng C AD - Department of Hematology, Affiliated Provincial Hospital, Anhui Medical University, Hefei 230001, China. FAU - Tang, Baolin AU - Tang B AD - Department of Hematology, Affiliated Provincial Hospital, Anhui Medical University, Hefei 230001, China. FAU - Zhu, Xiaoyu AU - Zhu X AD - Department of Hematology, Affiliated Provincial Hospital, Anhui Medical University, Hefei 230001, China. FAU - Song, Kaidi AU - Song K AD - Department of Hematology, Affiliated Provincial Hospital, Anhui Medical University, Hefei 230001, China. LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Zhonghua Xue Ye Xue Za Zhi JT - Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi JID - 8212398 RN - 0 (HLA Antigens) SB - IM MH - Adolescent MH - Adult MH - Child MH - Child, Preschool MH - *Cord Blood Stem Cell Transplantation MH - Female MH - Follow-Up Studies MH - HLA Antigens/*immunology MH - Hematologic Neoplasms/*therapy MH - *Histocompatibility Testing MH - Humans MH - Male MH - Middle Aged MH - Retrospective Studies MH - Treatment Outcome MH - Young Adult EDAT- 2014/08/26 06:00 MHDA- 2015/01/06 06:00 CRDT- 2014/08/26 06:00 PHST- 2014/08/26 06:00 [entrez] PHST- 2014/08/26 06:00 [pubmed] PHST- 2015/01/06 06:00 [medline] AID - 10.3760/cma.j.issn.0253-2727.2014.08.002 [doi] PST - ppublish SO - Zhonghua Xue Ye Xue Za Zhi. 2014 Aug;35(8):678-83. doi: 10.3760/cma.j.issn.0253-2727.2014.08.002.