Immunophenotype of hematopoietic cells of the diseased mice. (A) Flow cytometric analysis of different tissue samples, showing high levels of GFP⁺ Thy1⁺ cells in all tissues analyzed. (B) The majority of splenocytes and lymphocytes in leukemic mice are CD4 and CD8 DP, with high expression of CD25, compared with CD4⁺/CD8⁺ cells isolated from normal thymus.