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Expression of C4.4A is a Potential Independent Prognostic Factor for Patients with Gastric Cancer

  • Cheng, Da-Qing (Department of General Surgery, Huashan Hospital, Fudan University) ;
  • Gu, Xiao-Dong (Department of General Surgery, Huashan Hospital, Fudan University) ;
  • Li, Zhen-Yang (Department of General Surgery, Huashan Hospital, Fudan University) ;
  • Xiang, Jian-Bin (Department of General Surgery, Huashan Hospital, Fudan University) ;
  • Chen, Zong-You (Department of General Surgery, Huashan Hospital, Fudan University)
  • Published : 2014.05.15

Abstract

C4.4A, a metastasis-associated gene, encodes a glycolipid-anchored membrane protein which is overexpressed in several human malignancies. However, there are few data available on C4.4A expression and its relationship with progression in gastric cancer. Our study was designed to explore the expression of C4.4A in gastric cancer and to correlate it with clinical outcome. C4.4A expression was studied by quantitative real-time RT-PCR and immunohistochemistry for assessment of correlations with clinicopathological factors. C4.4A mRNA expression was significantly up-regulated in gastric cancer as compared with noncancerous tissue (p<0.05)., being observed in 107 (88.4%) of the 121 gastric cancer cases by immunohistochemistry. We found that the expression of C4.4A mRNA was correlated with size of the tumor, depth of invasion, lymph node metastasis, distant metastasis and TNM stage. Moreover, patients with overexpression of C4.4A has a significantly worse survival (p<0.05). Further multivariable analysis indicated that the expression of C4.4A was an independent prognostic indicator for gastric cancer (p<0.05). In conclusion, overexpression of C4.4A correlates with metastatic potential of gastric cancer and C4.4A could be a novel independent prognostic marker for predicting outcome.

Keywords

References

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