The role of IGF-1R in pediatric malignancies

Su Young Kim, Jeffrey A. Toretsky, Daniel Scher, Lee J. Helman

Research output: Contribution to journalArticlepeer-review

74 Scopus citations


The insulin-like growth factor (IGF) family consists of ligands (IGF-I, IGF-II, insulin), several receptors (including IGF-1R), and six binding proteins (IGFBP-1 through IGFBP-6). Members of this family regulate key cellular activities and they also play an important role in the development and progression of both adult and childhood cancers. Binding of a ligand to the receptor leads to its activation, followed by signal transduction along several pathways. In some childhood malignancies, IGF-1R can be activated by endocrine, autocrine, or paracrine mechanisms. Although mutations in IGF-1R have not been identified, this signaling pathway is upregulated in many childhood cancers. These findings have led to the development of a host of IGF-1R signaling modulators that are currently being tested in clinical trials. This review explores the role of IGF-1R in a range of childhood malignancies.

Original languageEnglish (US)
Pages (from-to)83-91
Number of pages9
Issue number1
StatePublished - 2009
Externally publishedYes


  • IGF-1R
  • Molecular targeting
  • Pediatric malignancy
  • Therapeutic antibody

ASJC Scopus subject areas

  • Oncology
  • Cancer Research


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