Effects of MIP-α on CFU-E (A) and BFU-E (B) formation by CD34⁺ BMMNCs. The purified CD34⁺ BMMNCs were plated in a methylcellulose medium containing growth factor(s), with or without indicated concentrations of recombinant human MIP-α. The number of CFU-E and BFU-E was determined at day 7 and day 14 of culture, respectively. The data are representative of three independent experiments with quadruplicate determinations.