Amphiregulin: a new growth factor in hepatocarcinogenesis
Berasain C, Castillo J, Perugorría MJ, Prieto J, Avila MA.
Division of Hepatology and Gene Therapy, CIMA, Universidad de Navarra, Pamplona, Spain
Magazine: Cancer Letters
Date: Aug 28, 2007Hepatology
Amphiregulin (AR) is a member of the epidermal growth factor family and a ligand of the epidermal growth factor receptor (EGFR). As other ligands of the EGFR, AR is synthesized as a precursor that is shed from the plasma membrane by metalloproteases.
Hyperactive autocrine loops involving AR production have been described in a variety of tumors, and this growth factor is thought to play a non-redundant role in cancer development. AR expression is not detected in the normal liver, however it is readily induced during acute liver injury and behaves as a potent pro-regenerative and survival factor.
Increased AR expression is also detected in human chronic liver injury (liver cirrhosis), which is considered a pre-neoplastic condition. Recent evidences suggest that AR can play a unique role in liver tumorigenesis and in the maintenance of the neoplastic phenotype of hepatocarcinoma cells. In this review, we summarize some aspects of AR patho-biology and the rationale behind its definition as a novel target in hepatocarcinoma therapy.
CITATION Cancer Lett. 2007 Aug 28;254(1):30-41
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