Flow cytometric analysis of leukemic blasts and results of HGF receptor expression.

(A) Flow cytometric analysis of leukemic blasts. Flow cytometry of leukemic blasts was performed by using a panel of monoclonal antibodies selected to define the stem cell leukemia phenotype. Representative results are shown. (B) Representative results on HGF receptor (HGFR) expression. Expression of flt3, c-kit, IL-6R, and IL-3Rα chain on leukemic blasts grown either in the absence of HGFs (control) or in the presence of FL, KL, or IL-3.