Journal
FEBS LETTERS
Volume 583, Issue 12, Pages 1817-1824Publisher
WILEY
DOI: 10.1016/j.febslet.2009.05.007
Keywords
Cancer; IQGAP1; IQGAP2; IQGAP3; Metastasis; Neoplasia; Tumorigenesis
Funding
- NCI NIH HHS [R01 CA075205-04, R01 CA075205] Funding Source: Medline
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The IQGAP family comprises three proteins in humans. The best characterized is IQGAP1, which participates in protein-protein interactions and integrates diverse signaling pathways. IQGAP2 and IQGAP3 harbor all the domains identified in IQGAP1, but their biological roles are poorly defined. Proteins that bind IQGAP1 include Cdc42 and Rac1, E-cadherin, beta-catenin, calmodulin and components of the mitogen-activated protein kinase pathway, all of which are involved in cancer. Here, we summarize the biological functions of IQGAPs that may contribute to neoplasia. Additionally, we review published data which implicate IQGAPs in cancer and tumorigenesis. The cumulative evidence suggests IQGAP1 is an oncogene while IQGAP2 may be a tumor suppressor. (C) 2009 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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