RESUMO
This study was purposed to investigate the expression of the growth-factor independence 1 (GFI1) in patients with leukemia and its clinical significance. Bone marrow mononuclear cells were obtained from 65 newly diagnosed leukemia patients including 24 acute myeloid leukemia (AML), 18 chronic myelogenous leukemia (CML), 6 acute lymphoblastic leukemia (ALL), 17 blast crisis of chronic myelogenous leukemia and 13 patients with iron deficiency anemia (IDA) were used as controls. The relative expression of gene gfi1 was detected by reverse transcriptase-polymerase chain reaction (RT-PCR) and taqman quantitative real-time reverse transcription polymerase chain reaction (QRT-PCR). The results showed that gene expression of gene gfi1 in leukemia patients was obviously higher than that in controls and the difference was statistically significant (p < 0.01), in which the expression of gene gfi1 in newly diagnosed CML patients was higher than that in newly diagnosed AML, newly diagnosed ALL, CML-BCP patients and the difference was significant (p < 0.01). Expression of gene gfi1 in lymphocytic blast crisis of CML was higher than that in nonlymphocytic blast crisis of CML, and the difference was significant. It is concluded that gene gfi1 may play an important role in leukemia, especially in CML incidence and progression. The high level expression of gene gfi1 may be participate in the development of lymphoma.