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High CD3+and CD34+peripheral blood stem cell grafts content is associated with increased risk of graft-versus-host disease without beneficial effect on disease control after reduced-intensity conditioning allogeneic transplantation from matched unrelated donors for acute myeloid leukemia - an analysis from the Acute Leukemia Working Party of the European Society for Blood and Marrow Transplantation
Maria Sklodowska Curie Mem Cancer Centre, Poland; Institute Oncol, Poland.
Hop St Antoine, France; INSERM, France; University of Paris 06, France.
University of Munich, Germany.
Erasmus University, Netherlands.
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2016 (English)In: OncoTarget, ISSN 1949-2553, E-ISSN 1949-2553, Vol. 7, no 19, 27255-27266 p.Article in journal (Refereed) PublishedText
Abstract [en]

Inconsistent results have been reported regarding the influence of graft composition on the incidence of graft versus host disease (GVHD), disease control and survival after reduced-intensity conditioning (RIC) allogeneic peripheral blood stem cell transplantation (allo-PBSCT). These discrepancies may be at least in part explained by the differences in disease categories, disease status at transplant, donor type and conditioning. The current retrospective EBMT registry study aimed to analyze the impact of CD3+ and CD34+ cells dose on the outcome of RIC allo-PBSCT in patients with acute myelogenous leukemia (AML) in first complete remission, allografted from HLA-matched unrelated donors (10 of 10 match). We included 203 adults. In univariate analysis, patients transplanted with the highest CD3+ and CD34+ doses (above the third quartile cut-off point values, amp;gt;347 x 10amp;lt;^amp;gt;6/kg and amp;gt;8.25 x 10amp;lt;^amp;gt;6/kg, respectively) had an increased incidence of grade III-IV acute (a) GVHD (20% vs. 6%, P = .003 and 18% vs. 7%, P = .02, respectively). There was no association between cellular composition of grafts and transplant-related mortality, AML relapse, incidence of chronic GVHD and survival. Neither engraftment itself nor the kinetics of engraftment were affected by the cell dose. In multivariate analysis, CD3+ and CD34+ doses were the only adverse predicting factors for grade III-IV aGVHD (HR = 3.6; 95% CI: 1.45-9.96, P = .006 and 2.65 (1.07-6.57), P = .04, respectively). These results suggest that careful assessing the CD3+ and CD34+ graft content and tailoring the cell dose infused may help in reducing severe acute GVHD risk without negative impact on the other transplantation outcomes.

Place, publisher, year, edition, pages
IMPACT JOURNALS LLC , 2016. Vol. 7, no 19, 27255-27266 p.
Keyword [en]
allogenic transplantation; stem cell transplantation; acute myeloid leukemia (AML); reduced-intensity conditioning; cell dose
National Category
URN: urn:nbn:se:liu:diva-130140DOI: 10.18632/oncotarget.8463ISI: 000377741700026PubMedID: 27036034OAI: diva2:948561
Available from: 2016-07-12 Created: 2016-07-11 Last updated: 2016-08-05

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Sandstedt, Anna
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Department of Social and Welfare StudiesFaculty of Health SciencesDepartment of Haematology
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