title: IGF-1 receptor inhibitors in clinical trials--early lessons.
abstract: The insulin-like growth factor pathway plays a major role in cancer cell proliferation, survival and resistance to anti-cancer therapies in many human malignancies, including breast cancer. As a key signaling component of IGF system, the IGF-1 receptor is the target of several investigational agents in clinical and pre-clinical development. This review will focus on the rationale for targeting the IGF-1 receptor and other components of the IGF-1 system. In addition, we will examine the role of IGF-1 signaling in resistance to clinically important breast cancer therapies, including cytotoxic chemotherapy, hormonal therapy and erbB targeted agents. We will also review the completed and ongoing clinical investigations with IGF-1 receptors inhibitors to date and the utility of these early data in designing future breast cancer studies with IGF-1 signaling inhibition strategies.
authors.affiliation: Department of Oncology, Mayo Clinic, 200 First St. SW., Rochester, MN 55905, USA.
authors.forename: S John
authors.initials: SJ
authors.lastname: Weroha
authors.forename: Paul
authors.initials: P
authors.lastname: Haluska
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D019008:Drug Resistance, Neoplasm / Q000187:drug effects; D006801:Humans; D009369:Neoplasms / Q000188:drug therapy / Q000201:enzymology / Q000473:pathology; D047428:Protein Kinase Inhibitors / Q000627:therapeutic use*; D017526:Receptor, IGF Type 1 / Q000037:antagonists & inhibitors* / Q000378:metabolism
chemical_list: D000970:Antineoplastic Agents; D047428:Protein Kinase Inhibitors; D017526:Receptor, IGF Type 1