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Semin Cell Dev Biol. 2005 Aug-Oct;16(4-5):564-74. Epub 2005 Apr 26.

The VHL tumor suppressor in development and disease: functional studies in mice by conditional gene targeting.

Author information

1
Department of Medicine, University of Pennsylvania School of Medicine, 700 CRB, 415 Curie Boulevard, Philadelphia, PA 19104-6144, USA. vhaase@mail.med.upenn.edu

Abstract

The von Hippel-Lindau tumor suppressor pVHL plays a critical role in the pathogenesis of familial and sporadic clear cell carcinomas of the kidney and hemangioblastomas of the retina and central nervous system. pVHL targets the oxygen sensitive alpha subunit of hypoxia-inducible factor (HIF) for proteasomal degradation, thus providing a direct link between tumorigenesis and molecular pathways critical for cellular adaptation to hypoxia. Cell type specific gene targeting of VHL in mice has demonstrated that proper pVHL mediated HIF proteolysis is fundamentally important for survival, proliferation and differentiation of many cell types and furthermore, that inactivation of pVHL may, unexpectedly, inhibit tumor growth under certain conditions. Mouse knock out studies have provided novel mechanistic insights into VHL associated tumorigenesis and established a central role for HIF in the development of the VHL phenotype.

PMID:
15908240
PMCID:
PMC3787877
DOI:
10.1016/j.semcdb.2005.03.006
[Indexed for MEDLINE]
Free PMC Article

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