The insulin-like growth factor-I receptor as a target for cancer therapy

Expert Opin Ther Targets. 2005 Aug;9(4):753-68. doi: 10.1517/14728222.9.4.753.


This review examines the rationale for targeting the insulin-like growth factor (IGF)-I receptor in the therapy of human tumours and their metastases. The rationale is based on two crucial findings: 1) in experimental animals, normal cells are only partially affected by the deletion of the IGF-I receptor, whereas tumour cells undergo apoptosis when the IGF-I receptor is downregulated; and 2) cells with a deleted IGF-I receptor are refractory to transformation by viral and cellular oncogenes. This review focuses on the mechanisms underlying the experimental findings, and discusses the possibility of extrapolating the results obtained in animals to the cure of human tumours.

Publication types

  • Review

MeSH terms

  • Animals
  • Antineoplastic Agents / pharmacology*
  • Gene Expression Regulation
  • Humans
  • Neoplasms / drug therapy*
  • Neoplasms / genetics
  • Receptor, IGF Type 1 / antagonists & inhibitors*
  • Receptor, IGF Type 1 / genetics
  • Receptor, IGF Type 1 / metabolism*
  • Signal Transduction
  • Substrate Specificity


  • Antineoplastic Agents
  • Receptor, IGF Type 1