Oncotarget

Research Papers:

Applicability of the methylated CpG sites of paired box 5 (PAX5) promoter for prediction the prognosis of gastric cancer

Jingyu Deng, Han Liang, Rupeng Zhang, Qiuping Dong, Yachao Hou, Jun Yu, Daiming Fan and Xishan Hao _

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Oncotarget. 2014; 5:7420-7430. https://doi.org/10.18632/oncotarget.1973

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Abstract

Jingyu Deng1, Han Liang1, Rupeng Zhang1, Qiuping Dong2, Yachao Hou1, Jun Yu3, Daiming Fan4 and Xishan Hao1

1 Department of Gastroenterology, Tianjin Medical University Cancer Hospital, City Key Laboratory of Tianjin Cancer Center and National Clinical Research Center for Cancer, Tianjin, China

2 Central laboratory, Tianjin Medical University Cancer Hospital, City Key Laboratory of Tianjin Cancer Center and National Clinical Research Center for Cancer, Tianjin, China

3 Institute of Digestive Disease, Li Ka Shing Institute of Health Science, Chinese University of HongKong, Shatin, HongKong

4 State Key Laboratory of Cancer Biology and Institute of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi’an, China

Correspondence:

Xishan Hao, email:

Han Liang, email:

Keywords: Paired box 5, Methylation, Prognosis, Gastric cancer

Received: April 16, 2014 Accepted: May 12, 2014 Published: May 14, 2014

Abstract

Paired box gene 5 (PAX5), a member of the paired box gene family, is involved in control of organ development and tissue differentiation. In previous study, PAX5 promoter methylation was found in gastric cancer (GC) cells and tissues. At present study, we found that the inconsistently methylated levels of PAX5 promoter were identified in the different GC tissues. The methylated CpG site count and the methylated statuses of four CpG sites (-236, -183, -162, and -152) were significantly associated with the survival of 460 GC patients, respectively. Ultimately, the methylated CpG -236 was the optimal prognostic predictor of patients identified by using the Cox regression with AIC value calculation. These findings indicated that the methylated CpG -236 of PAX5 promoter has the potential applicability for clinical evaluation the prognosis of GC.


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