Med. Sci. 2013, 1(1), 20-36; doi:10.3390/medsci1010020
Review

Crosstalk between Fibroblast Growth Factor (FGF) Receptor and Integrin through Direct Integrin Binding to FGF and Resulting Integrin-FGF-FGFR Ternary Complex Formation

1 Department of Molecular Pathology, Osaka University Graduate School of Medicine, Division of Health Sciences, 1-7 Yamada-oka, Suita-shi, Osaka 565-0871, Japan 2 Departments of Dermatology and Molecular Medicine, School of Medicine, University of California, Davis, Sacramento, CA 95817, USA
* Author to whom correspondence should be addressed.
Received: 13 June 2013; in revised form: 6 August 2013 / Accepted: 8 August 2013 / Published: 13 August 2013
(This article belongs to the Special Issue Feature Papers 2013)
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Abstract: Fibroblast growth factors (FGFs) play a critical role in diverse physiological processes and the pathogenesis of diseases. Integrins are involved in FGF signaling, since integrin antagonists suppress FGF signaling. This is called integrin-FGF crosstalk, while the specifics of the crosstalk are unclear. This review highlights recent findings that FGF1 directly interacts with integrin αvβ3, and the resulting integrin-FGF-fibroblast growth factor receptor (FGFR) ternary complex formation is essential for FGF1-induced cell proliferation, migration and angiogenesis. An integrin-binding defective FGF1 mutant (Arg-50 to Glu, R50E) is defective in ternary complex formation and in inducing cell proliferation, migration and angiogenesis, while R50E still binds to the FGF receptor and heparin. In addition, R50E suppressed tumorigenesis in vivo, while wild-type (WT) FGF1 enhanced it. Thus, the direct interaction between FGF1 and integrin αvβ3 is a potential therapeutic target, and R50E is a potential therapeutic agent.
Keywords: FGF1; integrin; crosstalk; dominant-negative mutant

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MDPI and ACS Style

Mori, S.; Takada, Y. Crosstalk between Fibroblast Growth Factor (FGF) Receptor and Integrin through Direct Integrin Binding to FGF and Resulting Integrin-FGF-FGFR Ternary Complex Formation. Med. Sci. 2013, 1, 20-36.

AMA Style

Mori S, Takada Y. Crosstalk between Fibroblast Growth Factor (FGF) Receptor and Integrin through Direct Integrin Binding to FGF and Resulting Integrin-FGF-FGFR Ternary Complex Formation. Medical Sciences. 2013; 1(1):20-36.

Chicago/Turabian Style

Mori, Seiji; Takada, Yoshikazu. 2013. "Crosstalk between Fibroblast Growth Factor (FGF) Receptor and Integrin through Direct Integrin Binding to FGF and Resulting Integrin-FGF-FGFR Ternary Complex Formation." Med. Sci. 1, no. 1: 20-36.

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