The expression of PD-L1 APE1 and P53 in hepatocellular carcinoma and its relationship to clinical pathology

G. Kan, W. Dong

Cancer Center of Research Institute of field surgery of the Third Military Medical University Daping Hospital, Chongqing, China. dongwang64@hotmail.com

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• Oncology

OBJECTIVE: To study the expression of programmed death-ligand1 (PD-L1) in hepatocellular carcinoma and its relationship with clinicopathological characteristics and, prognosis of hepatocellular carcinoma and APE1, P53 protein expression levels.

PATIENTS AND METHODS: A total of 128 patients with hepatocellular carcinoma were enrolled in this study. The expression of PD-L1, APE1 and P53 were detected by immunohistochemistry.Use immunohistochemical ABC staining method to detect the expression levels of PD-L1, APE1 and P53 protein in the hepatocellular carcinoma of 128 cases.

RESULTS: Positive The positive expression rates levels of PD-L1, APE1, and P53 protein in hepatocellular carcinoma tissues are were 82.03%, 92.19%, and 60.94%. PD-L1 positive expression were significantly associated with clinical stage, The PD-L1 protein has a high expression in patients with I ~ II stage liver cancerHBV infection positive and nonportal vein thrombosis (p=0.041; p=0.030; p=0.014). It is inversely correlated with P53 and PD-L1 expression (correlation coefficient -0.227, p=0.010), and positively correlated with APE1 expression (correlation coefficient 0.189, p=0.032). The expression of PD-L1 is associated with the survival time of patients with hepatocellular carcinoma, and the median survival time of patients with high expression of PD-L1 is ten months. The median survival time of patients with low expression is five months (p=0.001). The relationship between the expression of APE1 and P53 protein and overall survival time of patients with hepatocellular carcinoma has not been found.

CONCLUSIONS: The PD-L1 and APE1 expression in hepatocellular carcinoma are related to the level of the expression of P53 protein. The expression state of PD-L1 may be a prognostic factor in hepatocellular carcinoma.

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