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Low SOX12 Expression Is Correlated With Poor Prognosis in Patients With Gastric Cancer
Kan-Kan Yang1, Hui-Mian Xu1, Jin-Yu Huang1
1Department of Surgical Oncology, First Affiliated Hospital of China Medical University, Shenyang, China.
Background:
SRY-related HMG box-12, which is associated with the prognosis of cancer, has been frequently described. However, both SRY-related HMG box-12 expression and its relationship with clinicopathological variables and patient survival have not been defined in gastric cancer. The aim of our study was to examine the prognostic value of SRY-related HMG box-12 expression in patients with gastric cancer.
Methods:
In this study, we determined SRY-related HMG box-12 expression in 79 primary gastric cancer tissues and 79 matched adjacent nontumor tissues by immunohistochemistry and then calculated the survival rate using the Kaplan-Meier method. Cox proportional hazard regression model was used to analyze predictors of gastric cancer. Western blot and quantitative real-time polymerase chain reaction were used to investigate the difference in SRY-related HMG box-12 expression between normal gastric epithelial cells and gastric cancer cells at the protein level and RNA level, respectively.
Results:
SRY-related HMG box-12 was downregulated in gastric cancer tissues. Low SRY-related HMG box-12 expression was significantly associated not only with lymph node metastasis (P = .027) and TNM stage (P = .021) but also with disease-specific survival in patients with gastric cancer. Multivariate analysis demonstrated TNM stage was an independent factor predicting poor survival (P = .034).
Conclusions:
Low SRY-related HMG box-12 expression is associated with poor clinical outcomes in gastric cancer.
