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Zhang, Rong; Yang, Wei; Li, Ying Chun; Zhang, Guo Jun; Yao, Kun; Hu, Rong; Wu, Bin
Cellular physiology and biochemistry, 01/2015, Volume: 35, Issue: 1Journal Article
Aim: To investigate the possible association between the Osteopontin (OPN) gene polymorphisms and the susceptibility and chemotherapy response of acute myeloid leukemia patients. Methods: A total of 381 patients with de nova AML and 430 healthy controls were enrolled. All patients received Ara-C-based standard induction chemotherapy regimens, and the treatment response was evaluated. Several polymorphisms in the human OPN encoding gene have been identified. The OPN) gene polymorphisms at 3 loci, namely, -156 GG>G, -443 C>T and -66T>G were determined. Results: We identified that the -443C>T polymorphism was the only one which is closely related to AML. Compared with the -443TT carriers, our data showed that the -443CC genotype carriers were significantly related to a higher risk for AML. The -443CC genotype was also more prevalent in poor response groups than in good response group. The -443CC carriers are more likely to have poor response to AML treatment. Cellular assay indicated that the leukemic cell lines receiving the OPN -443C transfection have a significantly lower apoptosis rate to Ara-C treatment compared to cell lines transfected with -443T. Conclusion: The findings of this study suggest OPN-443C>T gene polymorphism may be sued as a molecular for susceptibility and chemotherapy response of AML.
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