CD34 and leukemia: (C) Flow cytometry analysis of BM cellularity of primary Kat2a WT or KO leukemias: shown are late (Mac1+Gr1+) and early (Mac1+Gr1-) differentiated populations and Gr1-Mac1-cKit+Sca1-CD34+FcgR+ candidate stem-like L-GMP cells, mean ± SEM, n = 4–5; 2-tailed t-test performed.