Myeloid differentiation of CD34⁺ BM. Number of colonies obtained after 14 days of culture in semisolid methyl cellulose medium (mean ± SD of measures for the cultures of cells from 8 macaques). (Ai) Total number of CFUs; (ii) GM-CFUs; (iii) M-CFUs; (iv) BFU-Es. (B) LTC-ICs identified after 5 weeks of coculture with the MS-5 stromal cell line, followed by 14 days of culture in semisolid medium (mean ± SD of measures for cultures of cells from 4 macaques).