MCB
Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrowReprints and Permissions
Right arrow Copyright Information
Right arrow Books from ASM Press
Right arrow MicrobeWorld
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Koochekpour, S.
Right arrow Articles by Vande Woude, G. F.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Koochekpour, S.
Right arrow Articles by Vande Woude, G. F.

 Previous Article  |  Next Article 

Molecular and Cellular Biology, September 1999, p. 5902-5912, Vol. 19, No. 9
0270-7306/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

The von Hippel-Lindau Tumor Suppressor Gene Inhibits Hepatocyte Growth Factor/Scatter Factor-Induced Invasion and Branching Morphogenesis in Renal Carcinoma Cells

Shahriar Koochekpour,1 Michael Jeffers,1 Paul H. Wang,2 Changning Gong,2 Gregory A. Taylor,1 Lisa M. Roessler,1 Robert Stearman,3 James R. Vasselli,4 William G. Stetler-Stevenson,5 William G. Kaelin Jr.,6 W. Marston Linehan,7 Richard D. Klausner,8 James R. Gnarra,2 and George F. Vande Woude9,*

ABL Basic Research Program, NCI Frederick Cancer Research and Development Center, Frederick, Maryland 217021; Department of Biochemistry and Molecular Biology, Stanley S. Scott Cancer Center, Louisiana State University Medical Center, New Orleans, Louisiana 701122; Laboratory of Pathology,5 Urologic Oncology Branch,7 Division of Basic Sciences,9 Cell Biology and Metabolism Branch,3 Division of Cancer Treatment and Diagnosis,4 and Office of the Director,8 National Cancer Institute, Bethesda, Maryland 20892; and Howard Hughes Medical Institute, Dana-Farber Cancer Institute, Boston, Massachusetts 021156

Received 11 March 1999/Returned for modification 22 April 1999/Accepted 3 June 1999

Loss of function in the von Hippel-Lindau (VHL) tumor suppressor gene occurs in familial and most sporadic renal cell carcinomas (RCCs). VHL has been linked to the regulation of cell cycle cessation (G0) and to control of expression of various mRNAs such as for vascular endothelial growth factor. RCC cells express the Met receptor tyrosine kinase, and Met mediates invasion and branching morphogenesis in many cell types in response to hepatocyte growth factor/scatter factor (HGF/SF). We examined the HGF/SF responsiveness of RCC cells containing endogenous mutated (mut) forms of the VHL protein (VHL-negative RCC) with that of isogenic cells expressing exogenous wild-type (wt) VHL (VHL-positive RCC). We found that VHL-negative 786-0 and UOK-101 RCC cells were highly invasive through growth factor-reduced (GFR) Matrigel-coated filters and exhibited an extensive branching morphogenesis phenotype in response to HGF/SF in the three-dimensional (3D) GFR Matrigel cultures. In contrast, the phenotypes of A498 VHL-negative RCC cells were weaker, and isogenic RCC cells ectopically expressing wt VHL did not respond at all. We found that all VHL-negative RCC cells expressed reduced levels of tissue inhibitor of metalloproteinase 2 (TIMP-2) relative to the wt VHL-positive cells, implicating VHL in the regulation of this molecule. However, consistent with the more invasive phenotype of the 786-0 and UOK-101 VHL-negative RCC cells, the levels of TIMP-1 and TIMP-2 were reduced and levels of the matrix metalloproteinases 2 and 9 were elevated compared to the noninvasive VHL-positive RCC cells. Moreover, recombinant TIMPs completely blocked HGF/SF-mediated branching morphogenesis, while neutralizing antibodies to the TIMPs stimulated HGF/SF-mediated invasion in vitro. Thus, the loss of the VHL tumor suppressor gene is central to changes that control tissue invasiveness, and a more invasive phenotype requires additional genetic changes seen in some but not all RCC lines. These studies also demonstrate a synergy between the loss of VHL function and Met signaling.

* Corresponding author. Mailing address: Division of Basic Sciences, NCI-FCRDC, P.O. Box B, Bldg. 469, Frederick, MD 21702. Phone: (301) 846-1584. Fax: (301) 846-5038. E-mail: woude{at}ncifcrf.gov.

Molecular and Cellular Biology, September 1999, p. 5902-5912, Vol. 19, No. 9
0270-7306/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.


This article has been cited by other articles:



Home Help [Feedback] [For Subscribers] [Archive] [Search] [Contents]
J. Bacteriol. J. Virol. Eukaryot. Cell
Microbiol. Mol. Biol. Rev. Clin. Vaccine Immunol. All ASM Journals

Copyright © 1999 by the American Society for Microbiology. All rights reserved.