Abstract:Objective To analyze expression and clinical significance of serum FN and PTEN in primary liver cancer patients. Methods A total of 256 primary liver cancer patients as well as 50 healthy subjects who were admitted into our hospital from January 2013 to October 2015 were involved in this study. Cancerous tissue and para-cancer tissue were collected. Expression of FN and PTEN were tested by RT-PCR and western-blot. ROC curve was used to evaluate the diagnostic value of FN and PTEN. Results Expression of FN was increased while that of PTEN was decreased in cancer liver tissue significantly when compared with paracancerous tissue or normal liver (P?0.05). The sensitivity and specificity of FN mRNA detection were 74.22% and 86.00%, individually. The sensitivity and specificity of FN protein detection were 76.92% and 88.00%, individually. The sensitivity and specificity of PTEN mRNA detection were 72.65% and 90.00%, individually. The sensitivity and specificity of PTEN protein detection were 75.00% and 100.00%, individually. The sensitivity and specificity of FN plus PTEN were 86.72% and 82.00%, individually. The area under ROC curve was 0.912. The recurrence rate and metastasis rate was decreased while survival rate was increased significantly in patients who were negatively diagnosed by FN plus PTEN when compared with those who were positively diagnosed by FN or PTEN (P?0.05). Conclusions Joint detection with FN and PTEN may be a diagnostic and prognostic biomarker for liver cancer.