Expression of CD41 and CD61 on human CD34⁺cells after incubation with platelets.

Human bone marrow-derived MNCs were incubated with platelets and subsequently evaluated for coexpression of CD34 and CD41 or CD61 antigens. (A) Cytogram of BM MNCs. R1 lymphocytic gate. (B) Cells in R1 stained for CD34 antigen. (C) Expression of CD41 on CD34⁺cells incubated with platelets. (D) Expression of CD61 on CD34⁺ cells incubated with platelets. One study representative of 3 is shown.