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Aberrant Expression of HOXA5 and HOXA9 in AML

  • Zhao, Peng (Department of Medical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University) ;
  • Tan, Li (Department of Hematology, the First Affiliated Hospital of Guangzhou Medical University) ;
  • Ruan, Jian (Cancer Center, Traditional Chinese Medicine-Integrated Hospital, Southern Medical University) ;
  • Wei, Xiao-Ping (Department of Hematology, the First Affiliated Hospital of Guangzhou Medical University) ;
  • Zheng, Yi (Department of Medical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University) ;
  • Zheng, Li-Xia (Department of Hematology, the First Affiliated Hospital of Guangzhou Medical University) ;
  • Jiang, Wei-Qin (Department of Medical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University) ;
  • Fang, Wei-Jia (Department of Medical Oncology, The First Affiliated Hospital, School of Medicine, Zhejiang University)
  • Published : 2015.05.18

Abstract

Background: Aberrant expression of HOX gene expression has been observed in cancer. The purpose of this study was to investigate the alteration of HOXA5 and HOXA9 expression and their clinical significance in acute meloid leukemia (AML). Materials and Methods: The expression of HOXA5 and HOXA9 genes of bone marrow samples from 75 newly diagnosed AML patients and 22 healthy controls for comparison were examined by Real-time quantitative PCR (RQ-PCR) assay. Statistical analysis was conducted to evaluate HOXA5 and HOXA9 expression as possible biomarkers for AML. Results: The results showed that the complete remission rate (52.6%) of the patients who highly expressed HOXA5 and HOXA9 was significantly lower than that (88.9%) in patients who lowly express the genes (P=0.015). Spearmann correlation coefficients indicated that the expression levels for HOXA5 and HOXA9 genes were highly interrelated (r=0.657, P<0.001). Meanwhile, we detected significant correlations between HOXA9 expression and age in this limited set of patients (P=0.009). Conclusions: The results suggest a prognostic impact of increased expression of HOXA5 and HOXA9 in AML patients.

Keywords

Acute myeloid leukemia;HOXA5;HOXA9

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