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Adenovirus-mediated expression of a soluble fibroblast growth factor receptor inhibits in vitro growth of prostate DU145 cells

Lookup NU author(s): Bharat Gowardhan, Dr Alaiyi West, Professor Craig Robson, Professor Hing Leung

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Abstract

BACKGROUND. Fibroblast growth factor (FGF) family plays a key role in prostate cancer. The soluble FGF receptor (sFGFR) has been studied with regards to inhibiting cancer growth and was shown to have a dominant negative effect on cellular signaling and function. Using replication deficient adenovirus-mediated gene transfer, we tested if sFGFR expression may have a suppressive effect on in vitro growth of prostate cancer cells. METHODS. Western analysis was used to verify expression of sFGFR1 and to examine the effect of sFGFR1 on MAP kinase phosphorylation. The effect on proliferation and invasiveness of DU145 cells was examined using the WST-1 and Matrigel Invasion assay, respectively. RESULTS. Activation of MAP kinase (pERK1 and 2) by exogenous FGF1, 2, and 7 was suppressed to baseline levels by sFGFR, which was not seen with EGF. Proliferation and invasion of DU145 cells were significantly suppressed by sFGFR. CONCLUSIONS. A replication deficient adenoviral vector system reproducibly expresses sFGFR in prostate cells. Suppression of in vitro growth in DU145 cells by sFGFR provides the basis of a novel therapeutic approach. © 2004 Wiley-Liss, Inc.

Publication metadata

Author(s): Gowardhan, B., West, A. F., Robson, C. N., Leung, H. Y.

Publication type: Article

Publication status: Published

Journal: The Prostate

Year: 2004

Volume: 61

Issue: 1

Pages: 50-59

Print publication date: 15/09/2004

ISSN (print): 0270-4137

ISSN (electronic): 1097-0045

URL: http://dx.doi.org/10.1002/pros.20067

DOI: 10.1002/pros.20067

PubMed id: 15287093

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