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Cytosine 5-hydroxymethylation regulated kit gene expression in acute myeloid leukemia
Vol 33, Issue 2, 2019
Abstract
5-methyl cytosine (5mC) can be oxidized to 5-hydroxymethyl cytosine (5hmC) under the action of TET protein family, and 5hmC plays important roles in the pathogenesis of various tumors including acute myeloid leukemia (AML). In this study, we evaluated the role of 5mC and 5hmC levels in HL60 AML cells and bone marrow samples from AML patients for KIT gene expression to analyze 5hmC level in AML pathogenesis. Results showed that the expression and 5hmC level increased significantly of the KIT gene but the change of its 5mC level was not obvious after being treated by decitabine (DAC) in HL60 cells. IDH1 and IDH2 expression increased followed by increased KIT 5hmC level. In AML patients with IDH1 or IDH2 mutation, KIT expression and 5hmC were much lower than in those without mutation. The study indicated that the expression of KIT gene was regulated by 5hmC level in HL60 cells, and the 5hmC level was regulated by IDH1 and IDH2.
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Copyright (c) 2019 Y M. Xue, H C. Cheng, J H. Wang, W. Wang, L. Miao
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Medical Genetics, University of Torino Medical School, Italy

Department of Biomedical, Surgical and Dental Sciences, University of Milan, Italy