Erschienen in:
01.09.2009
Expression of CD62L on Donor CD4+ T Cells in Allografts: Correlation with Graft-Versus-Host Disease after Unmanipulated Allogeneic Blood and Marrow Transplantation
verfasst von:
Ying-Jun Chang, Xiang-Yu Zhao, Ming-Rui Huo, Xiao-Jun Huang
Erschienen in:
Journal of Clinical Immunology
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Ausgabe 5/2009
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Abstract
Introduction
The aim of this study was to investigate the association of donor CD4+ T cells expressing CD62L with transplant outcomes.
Materials and Methods
We report a prospective analysis of 31 patients who were treated with a Bu/Cy regimen, followed by unmanipulated blood and marrow transplantation.
Results
Median number (range) of CD4+CD62L+, CD4+CD45RA+CD62L+, and CD4+CD45RO+CD62L+ cells infused were 0.31(0.05–1.10)×108/kg, 0.22(0.03–0.95)× 108/kg, and 0.17(0.01–0.81)×108/kg, respectively. The incidence of grades II to IV aGVHD was 36%. In a multivariate analysis, infusion of >0.22 × 108 CD4+CD45RA+CD62L+ cells infused/kg increased the risk of grades II to IV aGVHD (HR = 4.741, 95% CI = 1.037–21.662, P = 0.045). Thirteen of 31 patients experienced cGVHD, the risk of cGVHD was increased in patients receiving >0.45 × 108 CD4+CD45RA+ cells infused/kg (HR = 4.614, 95% CI = 1.265–16.829, P = 0.021).
Conclusion
Our results suggest that a high cell dose of CD4+CD45RA+CD62L+ cells increase the incidence of grades II–IV aGVHD. A high number of CD4+CD45RA+ cells infused were associated with increased risk of cGVHD in our transplant settings.