The miRNAs potentially implicated in hematopoiesis and leukemogenesis. (A) Hematopoiesis process is schematized, and examples of miRNAs expressed involved in the cell differentiation and maturation are indicated. (B) The miRNAs with dysregulated expression that are potentially involved in oncogenic lymphoblast transformation and progression are shown. MiRNAs in red means downregulation, and miRNAs in green means upregulation; HSCs, hematopoietic stem cells; MPP, multipotent progenitors; CLP, common lymphoid progenitors; CMP, common myeloid progenitors; CFU-G, granulocytic colony-forming unit.