CD34 and acute myeloid leukemia: Based on these analyses, our conclusion is the same as for the analysis described after the first statistical analysis described in Section 3.1—differentially abundant proteins between AML and normal CD34+ cells show large biological diversity with the main characteristic being an increased expression of proteins reflecting limited myeloid/neutrophil differentiation of the AML cells, whereas the increased levels of regulators of the proliferation/cell cycle possibly reflect the immature/stem cell status of the CD34+ cells.