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Prepublished online as a Blood First Edition Paper on May 8, 2003; DOI 10.1182/blood-2002-11-3337. This Article Full Text (PDF) All Versions of this Article: 2002-11-3337v1 102/5/1915    most recent Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Rights and Permissions Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Barker, J. N Articles by Wagner, J. E Search for Related Content PubMed PubMed Citation Articles by Barker, J. N Articles by Wagner, J. E Social Bookmarking                   What's this? Submitted November 6, 2002 Accepted April 28, 2003 Rapid and complete donor chimerism in adult recipients of unrelated donor umbilical cord blood transplantation after reduced intensity conditioning Juliet N Barker*, Daniel J Weisdorf, Todd E DeFor, Bruce R Blazar, Jeffrey S Miller, and John E Wagner Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA; Medical Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis, MN, USA Blood and Marrow Transplant Program, University of Minnesota, Minneapolis, MN, USA; Pediatric Hematology, Oncology and Transplantation, University of Minnesota, Minneapolis, MN, USA * Corresponding author; email: barke014{at}umn.edu. Reduced intensity conditioning may reduce transplant-related mortality in high-risk adults undergoing hematopoietic transplantation. We investigated unrelated donor umbilical cord blood (UCB) transplantation after such conditioning in 43 patients (median age 49.5 years, range 22-65) with a primary end-point of donor engraftment. The first 21 patients received busulfan 8 mg/kg, fludarabine 200 mg/m2, and 200 cGy of total body irradiation (Bu/Flu/TBI). Subsequent patients (n = 22) received cyclophosphamide 50 mg/kg, fludarabine 200 mg/m2, and 200 cGy TBI (Cy/Flu/TBI). UCB grafts (93%) were 1-2 HLA-antigen mismatched with the recipient, and contained a median cryopreserved cell dose of 3.7 x 107 (range: 1.6-6.0) NC/kg. GVHD prophylaxis was cyclosporine-A to day 180 plus mycophenolate mofetil to day 30. The cumulative incidence of sustained donor engraftment was 76% (95%CI: 56-96) for Bu/Flu/TBI recipients and 94% (95%CI: 84-100) for Cy/Flu/TBI recipients. The median day of neutrophil recovery ( 0.5 x 109/l) for engrafting Bu/Flu/TBI recipients was 26 days (range: 12-30) and for Cy/Flu/TBI recipients was 9.5 days (range: 5-28). Incidence of grade III-IV acute GVHD was 9% (95%CI: 1-17), and survival at 1 year was 39% (95%CI: 23-56). These data demonstrate that 0-2 antigen mismatched UCB is sufficient to engraft the majority of adults after reduced intensity conditioning and is associated with a low incidence of severe acute GVHD. CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati    What's this? This article has been cited by other articles: N. Matsuno, A. Wake, N. Uchida, K. Ishiwata, H. Araoka, S. Takagi, M. Tsuji, H. Yamamoto, D. Kato, Y. Matsuhashi, et al. Impact of HLA disparity in the graft-versus-host direction on engraftment in adult patients receiving reduced-intensity cord blood transplantation Blood, August 20, 2009; 114(8): 1689 - 1695. [Abstract] [Full Text] [PDF] D. H. Salinger, D. K. Blough, P. Vicini, C. 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