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Cancer Lett. 2008 Nov 28;271(2):314-22. doi: 10.1016/j.canlet.2008.06.019. Epub 2008 Jul 25.

Hypoxia-inducible adrenomedullin accelerates hepatocellular carcinoma cell growth.

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  • 1Department of Internal Medicine, Korea Institute of Radiological and Medical Sciences, Korea Cancer Center Hospital, Seoul, Republic of Korea.

Abstract

Adrenomedullin is implicated in tumor progression and induced by hypoxia. We evaluated if adrenomedullin signaling is active in hepatocellular carcinoma (HCC), especially under hypoxic conditions, and to analyze its prognostic implication in HCC patients. HCC cells expressed adrenomedullin and its receptor, and hypoxia induced adrenomedullin expression. Adrenomedullin stimulated HCC cell growth via Akt activation, which was prevented by adrenomedullin peptide inhibitor. Clinico-pathological analysis revealed adrenomedullin extent was related to vascular invasion and N-cadherin intensity, which were reported to indicate a poor prognosis. In conclusion, adrenomedullin signaling is hypoxia-inducible and functionally active in HCCs, and its expression may be a prognostic factor.

PMID:
18657357
[PubMed - indexed for MEDLINE]
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