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Chinese Archives of General Surgery(Electronic Edition) ›› 2015, Vol. 09 ›› Issue (04): 280-285. doi: 10.3877/cma.j.issn.1674-0793.2015.04.006

Special Issue:

• Original Article • Previous Articles     Next Articles

Clinical significance of VEGF and its phosphorylated receptors in extrahepatic cholangiocarcinoma

Huixin Chen1,(), Lisha Chen1, Yongcheng Xu1, Zhijin Yu1, Jinwei Cheng1, Shujun Zeng1   

  1. 1. Department of Gastroenterology, Huizhou Municipal Central Hospital, Huizhou 516000, China
  • Received:2014-10-18 Online:2015-08-01 Published:2015-08-01
  • Contact: Huixin Chen
  • About author:
    Corresponding author: Chen Huixin, Email:

Abstract:

Objective

To study the clinical significance of vascular endothelial growth factor (VEGF) and its phosphorylated receptors in extrahepatic cholangiocarcinoma (EHCC).

Methods

Immunohistochemistry and Western blotting were used to determine the expression of VEGF and phosphorylated VEGF receptors (pVEGFR1/2) in EHCC tissues or EHCC cell lines of thirty-five cases. Clinical data were collected and further analyzed with protein expression of VEGF and pVEGFR1/2.

Results

There were 20 (57.1%), 14 (40.0%) and 14 (40.0%) positive cases of VEGF, pVEGFR1 and pVEGFR2, respectively. The over-expression of pVEGFR1 was correlated with pErk1/2, perineural invasion, TNM staging, tumor differentiation and vascular invasion (P<0.05). Over-expression of pVEGFR1 showed poor overall survival of EHCC patients (HR=4.45, 95% CI: 38.66-61.62, P=0.035).

Conclusion

In EHCC, pVEGFR1 and pVEGFR2 are correlated with tumor progression and poor prognosis, indicating that VEGF and its receptors may serve as predicting factors for prognosis in EHCC.

Key words: Vascular endothelial growth factor, Vascular endothelial growth factor receptor, Extrahepatic cholangiocarcinoma, Prognosis

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