How to cite this article: McNeill A, Rattenberry E, Barber R, Killick P, MacDonald F, Maher ER. 2009. Genotype–phenotype correlations in VHL exon deletions. Am J Med Genet Part A 149A:2147–2151.
Genotype–phenotype correlations in VHL exon deletions†
Version of Record online: 16 SEP 2009
Copyright © 2009 Wiley-Liss, Inc.
American Journal of Medical Genetics Part A
Volume 149A, Issue 10, pages 2147–2151, October 2009
How to Cite
McNeill, A., Rattenberry, E., Barber, R., Killick, P., MacDonald, F. and Maher, E. R. (2009), Genotype–phenotype correlations in VHL exon deletions. Am. J. Med. Genet., 149A: 2147–2151. doi: 10.1002/ajmg.a.33023
- Issue online: 24 SEP 2009
- Version of Record online: 16 SEP 2009
- Manuscript Accepted: 29 JUN 2009
- Manuscript Received: 29 APR 2009
- Cancer Research UK
- Von Hippel-Lindau syndrome;
- renal cell carcinoma;
- gene deletion;
Von Hippel-Lindau (VHL) syndrome is a dominantly inherited familial cancer syndrome caused by mutations in the VHL gene. VHL syndrome displays marked variation in expression and analysis of genotype–phenotype correlations have led to the concept of four subtypes of VHL syndrome (Types 1, 2A–C). Type 2 subtypes of VHL syndrome are characterized by the presence of pheochromocytoma and the three Type 2 subtypes are associated with differing risks of hemangioblastoma and renal cell carcinoma (RCC). Type 2 VHL syndrome is usually associated with surface missense mutations. Type 1 VHL syndrome is most commonly caused by germline exon deletions and truncating mutations and is characterized by susceptibility to hemangioblastomas and RCC but not pheochromocytoma. Recently, it has been suggested that large VHL gene deletions involving C3orf10 (HSPC300) might be associated with a low risk of RCC. We have reviewed the molecular and clinical characteristics of 127 individuals with germline VHL gene deletions. Large VHL gene deletions associated with a contiguous loss of C3orf10 were associated with a significantly lower lifetime risk of RCC than deletions that did not involve C3orf10. The risks of hemangioblastomas were similar in both groups. These results add to the growing body of evidence suggesting that patients with VHL syndrome caused by large VHL deletions that include C3orf10 may be designated as having a specific subtype (Type 1B) of the disorder. © 2009 Wiley-Liss, Inc.