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Expression and clinical value of NRP-1 in hepatocellular carcinoma
Pages: 428-432
Year: Issue:  6
Journal: Journal of International Oncology

Abstract: Objective To determine the expression and clinical value of neuropilin-1 (NRP-1) in hepatocellular carcinoma (HCC).Methods One hundred and fifty-one cases of HCC tissues and 89 cases of healthy liver tissues were chosen to compare the expression of NRP-1 by immunohistochemistry.Then the relationships between different clinical factors and the expression of NRP-1 were analyzed by univariate and multivariate statistical analysis.Moreover,the survival rates were compared by survival analysis between different expressions of NRP-1 in HCC patients.Results Eleven cases were lost to follow-up or died for non HCC disease,and the effective cases in the final study were 140 cases.The positive expression rates of NRP-1 in HCC and normal liver tissues were 65.00% and 35.96% respectively,and the difference was statistically significant (x2 =18.843,P <0.001).According to the expression level of NRP-1,140 patients with HCC were divided into negative expression group (n =49) and positive expression group (n =91).Univariate analysis showed that the expression of NRP-1 in HCC was correlated with tumor number (x2 =8.025,P =0.005),TNM stage (x2 =26.467,P < 0.001),differentiation degree (x2 =15.296,P < 0.001),portal vein invasion (x2 =9.054,P =0.003) and hepatic vein invasion (x2 =5.928,P =0.015).Multivariate statistical analysis showed that TNM stage (OR =1.392,95% CI:1.121-1.730,x2 =8.950,P =0.003),differentiation degree (OR =1.469,95% CI:1.102-1.958,x2 =6.862,P =0.009),portal vein invasion (OR =1.829,95% CI:1.157-2.893,x2 =6.665,P =0.010) and hepatic vein invasion (OR =2.161,95% CI:1.172-3.987,x2 =6.084,P =0.014) were important factors for NRP-1 expression.The median survival time of NRP-1 negative HCC patients was significantly longer than that of positive group (44 months vs.23 months),and the difference was statistically significant (x2 =21.922,P <0.001).Conclusion NRP-1 is over-expression in HCC tissue and related to the malignant progress of HCC,and this suggests poor prognosis in patients with HCC.
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