Cycling profiles of CD34⁺CD90⁺and CD34⁺CD90⁻ bone marrow progenitors from a donor (D11) at the time of bone marrow harvest and a fully engrafted matched recipient (R11) 12 months after HSCT.

CD34⁺CD90^+/− subsets, obtained by fluorescence-activated sorting of preselected CD34⁺ marrow cells, were analyzed by flow cytometry after incubation with Hoechst 33342 and pyronin Y. (A) Donor CD34⁺CD90⁺cells. (B) Donor CD34⁺CD90⁻ cells. (C) Recipient CD34⁺CD90⁺ cells 12 months after HSCT. (D) Recipient CD34⁺CD90⁻ cells 12 months after HSCT.