Treg And Tcon Dynamics After Allo-Hsct: Cgvhd Is Associated To Decreased Naive And Stem Cell Memory Subsets With A Concomitant Increase In Terminally Differentiated T Cell Subsets

BLOOD(2016)

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摘要
Chronic Graft versus Host disease (cGVHD) is a major limiting factor for the success of allo-HSCT. In this prospective study we aimed to evaluate the association between the kinetics of Regulatory T cells (TREG) and Conventional CD4+T cells (TCON) reconstitution and the emergence of cGVHD. We performed a detailed phenotypic analysis by multiparametric flow cytometry using fresh blood from 39 patients undergoing unrelated donor HSCT after a reduced intensity conditioning regimen containing ATG over a 2 year period, representing a total of 213 samples analyzed. GVHD prophylaxis consisted of cyclosporine plus mycophenolate mofetil. 11 patients were excluded due to disease relapse and/or death due to infection or acute GVHD in the first 9 months post-HSCT.
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