Amphiregulin: a new growth factor in hepatocarcinogenesis

Cancer Lett. 2007 Aug 28;254(1):30-41. doi: 10.1016/j.canlet.2007.01.015. Epub 2007 Feb 26.

Abstract

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.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Amphiregulin
  • Carcinoma, Hepatocellular / metabolism
  • Carcinoma, Hepatocellular / pathology*
  • Cell Transformation, Neoplastic / metabolism
  • Cell Transformation, Neoplastic / pathology
  • Disease Progression
  • EGF Family of Proteins
  • Glycoproteins / metabolism*
  • Humans
  • Intercellular Signaling Peptides and Proteins / metabolism*
  • Liver / metabolism
  • Liver / pathology
  • Liver Neoplasms / metabolism
  • Liver Neoplasms / pathology*
  • Models, Biological
  • Signal Transduction

Substances

  • AREG protein, human
  • Amphiregulin
  • EGF Family of Proteins
  • Glycoproteins
  • Intercellular Signaling Peptides and Proteins