Engraftment and stable expression of transgene in human CD45⁺ cells in NOG mice after transplantation of transfected CD34⁺ HPCs. (A) Engraftment and transgene expression in bone marrow cells at 12 weeks after transplantation. (B) Engraftment and transgene expression in spleen at 12 weeks after transplantation. (C) Phenotyping of bone marrow cells 12 weeks after transplantation. The percentage of DsRed⁺ and human CD19⁺, CD3⁺, CD33⁺, CD14⁺, and CD34⁺ cells is shown.