Expression and clinical significance of angiotensin II type 1 receptor in human hepatocellular carcinoma

Duan,Yun-Fei; Li,Xiao-Dong; Zhu,Feng; Zhang,Feng

doi:10.3892/etm.2013.1411

Expression and clinical significance of angiotensin II type 1 receptor in human hepatocellular carcinoma

Authors:
- Yun-Fei Duan
- Xiao-Dong Li
- Feng Zhu
- Feng Zhang
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Affiliations: Department of Liver Transplantation, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China, Department of Oncology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, P.R. China, Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, P.R. China
Published online on: November 15, 2013 https://doi.org/10.3892/etm.2013.1411
Pages: 323-328

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Abstract

This study aimed to investigate the expression of angiotensin II type 1 receptor (AT-1R) mRNA and the AT-1R protein in human primary hepatocellular carcinoma (PHC), and to attempt to elucidate their association with pathological and clinical characteristics. Fresh tumor and normal liver tissues were obtained from 44 patients with PHC following hepatectomies. AT-1R mRNA levels were quantitatively analyzed by quantitative polymerase chain reaction (qPCR) while the protein levels were assessed by immunohistochemistry. The expression levels of AT-1R were observed in hepatocellular carcinoma tissues and normal liver tissues. The level of AT-1R protein expression in normal liver tissues was higher compared with that in PHC tissues (P=0.0033). The AT‑1R mRNA levels were higher in patients with negative hepatitis B virus surface antigen (HBsAg), normal α-fetoprotein (AFP) levels and high tumor differentiation, compared with those in patients with positive HBsAg (P=0.0005), upregulated AFP levels (P=0.0008) and poor tumor differentiation (P=0.0290). No significant correlation was identified between the expression levels of AT-1R mRNA and general characteristics such as gender, age, cirrhotic nodules, tumor size, tumor encapsulation, tumor number, carcinoma embolus, tumor metastasis or tumor recurrence. Downregulated levels of AT-1R mRNA and AT-1R protein may indicate a poor prognosis for patients with PHC.

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