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We evaluated the in vitro effect on clonogenic potential (CFU-GM) and apoptosis in myelodysplastic syndromes (MDS) progenitors of an anti-oxidant (N-acetylcysteine, NAC) and/or a differentiating (all-trans retinoic acid, ATRA) agent. NAC significantly reduced apoptosis, both NAC and ATRA induced an increase in CFU-GM, but NAC seemed to be particularly effective in the high risk (HR) MDS. NAC+ATRA...
We evaluated the effect of SCF on myeloid differentiation by correlating clonogenic potential (as CFU-GM), bone marrow (BM) plasma SCF levels and CD34/c-kit expression in 57 MDS samples. There was a significant correlation between low SCF levels and 'leukemic' in vitro growth, the number of clusters and the colony/cluster ratio. No correlation was found between BM plasma SCF levels, the pattern of...
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