Growth factor signaling pathways as targets for prevention of epithelial carcinogenesis

Okkyung Rho, Dae Joon Kim, Karou Kiguchi, John Digiovanni

Research output: Contribution to journalArticlepeer-review

54 Scopus citations


Growth factor receptor (GFR) signaling controls epithelial cell growth by responding to various endogenous or exogenous stimuli and subsequently activating downstream signaling pathways including Stat3, PI3K/Akt/mTOR, MAPK, and c-Src. Environmental chemical toxicants and UVB irradiation cause enhanced and prolonged activation of GFR signaling and downstream pathways that contributes to epithelial cancer development including skin cancer. Recent studies, especially those with tissue-specific transgenic mouse models, have demonstrated that GFRs and their downstream signaling pathways contribute to all three stages of epithelial carcinogenesis by regulating a wide variety of biological functions including proliferation, apoptosis, angiogenesis, cell adhesion, and migration. Inhibiting these signaling pathways early in the carcinogenic process results in reduced cell proliferation and survival, leading to decreased tumor formation. Collectively, these studies suggest that GFR signaling and subsequent downstream signaling pathways are potential targets for the prevention of epithelial cancers including skin cancer.

Original languageEnglish (US)
Pages (from-to)264-279
Number of pages16
JournalMolecular Carcinogenesis
Issue number4
StatePublished - Apr 2011


  • Akt
  • Epithelial carcinogenesis
  • Growth factor signaling
  • MAPK
  • PI3K
  • Src
  • Stat3

ASJC Scopus subject areas

  • Molecular Biology
  • Cancer Research


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