Using flow cytometry, we went on to analyze the expression of Siglec-7 ligands on leukemic cells (Lin-CD90-CD34+CD38+) and leukemic stem cells (Lin-CD90-CD34+CD38-) in AML patient-derived peripheral blood (PB) and bone marrow (BM) (17). This evidence concerns the gene THY1 and acute myeloid leukemia.