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- Title
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
- Abstract
This study aimed to investigate the expression of angiotensinII type1 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 44patients 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 expres¬sion 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.
- Subjects
ANGIOTENSIN II; HEPATOCELLULAR carcinoma; LIVER cancer; ANGIOTENSIN-receptor blockers; PHYSIOLOGICAL effects of angiotensins
- Publication
Experimental & Therapeutic Medicine, 2014, Vol 7, Issue 2, p323
- ISSN
1792-0981
- Publication type
Article
- DOI
10.3892/etm.2013.1411