Genotype-phenotype correlations in families with deletions in the von Hippel-Lindau (VHL) gene

Hes, Frederik; Zewald, Richard; Peeters, Ton; Mortier, Geert; et al.

doi:doi:10.1007/S004390000265

Publication

Title

Genotype-phenotype correlations in families with deletions in the von Hippel-Lindau (VHL) gene

Author

Hes, Frederik

Zewald, Richard

Peeters, Ton

Mortier, Geert

et al.

Abstract

Von Hippel-Lindau (VHL) disease is a hereditary tumor syndrome characterized by predisposition for bilateral and multi-centric hemangioblastoma in the retina and central nervous system, pheochromocytoma, renal cell carcinoma, and cysts in the kidney, pancreas, and epididymis. We describe five families for which direct sequencing of the coding region of the VHL gene had failed to identify the family-specific mutation. Further molecular analysis revealed deletions involving the VHL gene in each of these families. In four families, partial deletions of one or more exons were detected by Southern blot analysis. In the fifth family, FISH analysis demonstrated the deletion of the entire VHL gene. Our results show that (quantitative) Southern blot analysis is a sensitive method for detecting germline deletions of the VHL gene and should be implemented in routine DNA diagnosis for VHL disease. Our data support the previously established observation that families with a germline deletion have a low risk for pheochromocytoma. Further unraveling of genotype-phenotype correlations in VHL disease has revealed that families with a full or partial deletion of the VHL gene exhibit a phenotype with a preponderance of central nervous system hemangioblastoma.

Language

Dutch

Source (journal)

Human genetics. - Berlin

Publication

Berlin : 2000

ISSN

0340-6717

Volume/pages

106:4(2000), p. 425-431

ISI

000087063200007