OGN and hematopoietic and lymphoid cell neoplasm: Extensive investigation into biogenesis,mechanism of action and functions of miRNAs has clearly revealed their prompt control indevelopmental timing, differentiation, proliferation, cell death, and metabolism.Deregulation of miRNA-mediated pathways may contribute to pathological conditions such astumors, including hematological cancers, thus suggesting that miRNAs act both astumor-suppressor genes (TSG) and oncogenes (OG).