Fig. 7. Morphological characterization of either NACA- or EGFP-transduced CD34⁺ cells cultured in erythroid differentiation conditions. Pictures represent May-Grunwald-Giemsa staining of either EGFP- or NACA-transduced cells cultured for either 7 days or 12 days under erythroid differentiation conditions. The table indicates the proportion of proerythroblasts and basophilic, polychromatophilic and acidophilic erythroblasts in these transduced cells. Different cell types were quantified after counting a total of 200 cells per experiment (mean of three different experiments).