Activation of the wnt pathway in non small cell lung cancer: evidence of dishevelled overexpression

Activation of the wnt pathway in non small cell lung cancer: evidence of dishevelled overexpression

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ABSTRACT Non small cell lung cancer (NSCLC) is the leading cause of cancer deaths in the United States and worldwide. Unfortunately, standard therapies remain inadequate. An increased


understanding of the molecular biology of lung cancer biology is required to develop more effective new therapies. In this report, we show that the Wnt pathway is activated through


Dishevelled (Dvl) overexpression in NSCLC. Analysis of freshly resected tumors and lung cancer cell lines demonstrate that Dvl-3, a critical mediator of Wnt signaling, is overexpressed.


Specifically, Dvl-3 was overexpressed significantly in 75% of fresh NSCLC microdissected samples compared to control paired matched normal lung samples. To evaluate the biological


significance of Wnt signaling and, in particular, Dvl function in lung cancer, we transfected siRNA (designed to inhibit selectively human Dvl-1, -2, and -3), to the NSCLC cell line H1703,


which is known to have _β_-catenin-mediated Tcf-dependent transcriptional activity. Here, we demonstrate that Dvl-specific siRNA treatment in H1703 decreases significantly Dvl and


_β_-catenin expression, resulting in reduction of Tcf-dependent transcriptional activity, and, importantly, growth inhibition. Taken together, these data support the novel hypothesis that


Dvl overexpression is critical to Wnt signaling activation and cell growth in NSCLC. Access through your institution Buy or subscribe This is a preview of subscription content, access via


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AUTHORS AND AFFILIATIONS * Thoracic Oncology Laboratory, UCSF Cancer Center, University of California at San Francisco, San Francisco, 94115, CA, USA Kazutsugu Uematsu, Biao He, Liang You, 


Zhidong Xu, Frank McCormick & David Mark Jablons * The Fourth Department of Internal Medicine, Nippon Medical School, Tokyo, 113-8602, Japan Kazutsugu Uematsu Authors * Kazutsugu Uematsu


View author publications You can also search for this author inPubMed Google Scholar * Biao He View author publications You can also search for this author inPubMed Google Scholar * Liang


You View author publications You can also search for this author inPubMed Google Scholar * Zhidong Xu View author publications You can also search for this author inPubMed Google Scholar *


Frank McCormick View author publications You can also search for this author inPubMed Google Scholar * David Mark Jablons View author publications You can also search for this author


inPubMed Google Scholar CORRESPONDING AUTHOR Correspondence to David Mark Jablons. RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Uematsu, K., He, B.,


You, L. _et al._ Activation of the Wnt pathway in non small cell lung cancer: evidence of dishevelled overexpression. _Oncogene_ 22, 7218–7221 (2003). https://doi.org/10.1038/sj.onc.1206817


Download citation * Received: 04 April 2003 * Revised: 08 May 2003 * Accepted: 15 May 2003 * Published: 16 October 2003 * Issue Date: 16 October 2003 * DOI:


https://doi.org/10.1038/sj.onc.1206817 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable link Sorry, a shareable link is not


currently available for this article. Copy to clipboard Provided by the Springer Nature SharedIt content-sharing initiative KEYWORDS * Dishevelled (Dvl) * Wnt signaling * non small cell lung


cancer * siRNA