© 2000 by Oxford University Press
Journal of the National Cancer Institute, Vol. 92, No. 20, 1688-1689,
October 18, 2000
© 2000 Oxford University Press
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Mutational Analysis of Endothelial Cells Derived From von HippelLindau-Related Renal Cancer
Affiliations of authors: M. Los, O. A. J. Kerckhaert, E. E. Voest (Laboratory of Medical Oncology, Division of Medical Oncology, Department of Internal Medicine), R. Zewald, H. K. Ploos van Amstel (Department of Medical Genetics), University Medical Center Utrecht, The Netherlands.
Correspondence to: Emile E. Voest, M.D., Laboratory of Medical Oncology, Division of Medical Oncology, Department of Internal Medicine, University Medical Center Utrecht, P.O. Box 85500, 3508 GA Utrecht, The Netherlands (e-mail: e.e.voest@digd.azu.nl).
von HippelLindau (VHL) disease is an autosomal dominant, inherited cancer syndrome that is characterized by extensively vascularized tumors, such as hemangioblastomas of the retina and central nervous system, renal cell carcinomas (RCCs), and pheochromocytomas (1). The VHL tumor suppressor gene was cloned in 1993 and is located at chromosome 3p253p26 (2). According to the two-hit hypothesis for tumor suppressor genes, inactivation of both alleles of the VHL gene leads to tumor formation. One copy of the VHL gene is mutated by inheritance, and the second hit causes inactivation of the remaining wild-type VHL gene (3).
Although the VHL protein is widely expressed in different
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