Fig. 5.
Effects of IFN-γ on the myeloid colony growth by retrovirus transduced BM CD34+ cells. (A) The number of myeloid colonies (colony-forming unit–granulocyte-macrophage [CFU-GM]) formed in the presence (▨) or absence (□) of IFN-γ. Statistical analysis (t-test): **P < .01 when compared with the value without IFN-γ. (B) DNA-PCR of NeoR and β-actin gene from the myeloid colonies formed. DNA was extracted from pooled colonies. Comparable results were obtained in two independent experiments.