A rare haplotype of the RET proto-oncogene is a risk-modifying allele in Hirschsprung disease

T (S836S), in exon 14 of the RET gene, characterized by low frequency among patients with HSCR and overrepresentation in individuals affected by sporadic medullary thyroid carcinoma. Typing of several different markers across the RET gene demonstrated that a whole conserved haplotype displayed anomalous distribution and nonrandom segregation in families with HSCR. We provide genetic evidence about a protective role of this low-penetrant haplotype in the pathogenesis of HSCR and demonstrate a possible functional effect linked to RET messenger RNA expression. -->
Jazyk: English
ISSN: 0002-9297
Přístupová URL adresa: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d397a4459136640b490080fabc98f10f
https://hdl.handle.net/11370/9c99e261-2d46-4e39-b06f-be6c3e57d4c8
Rights: OPEN
Přírůstkové číslo: edsair.doi.dedup.....d397a4459136640b490080fabc98f10f
Autor: Barbara Pesce, Jan Osinga, Giovanna Patrone, Robert M.W. Hofstra, Francesca Puppo, Roberto Ravazzolo, Marcella Devoto, Paola Griseri, Monica Sancandi, Isabella Ceccherini, Giovanni Romeo
Jazyk: angličtina
Rok vydání: 2002
Předmět:
Zdroj: American Journal of Human Genetics, 71(4), 969-974. CELL PRESS
Scopus-Elsevier
ISSN: 0002-9297
Popis: Hirschsprung disease (HSCR) is a common genetic disorder characterized by intestinal obstruction secondary to enteric aganglionosis. HSCR demonstrates a complex pattern of inheritance, with the RET proto-oncogene acting as a major gene and with several additional susceptibility loci related to the Ret-signaling pathway or to other developmental programs of neural crest cells. To test how the HSCR phenotype may be affected by the presence of genetic variants, we investigated the role of a single-nucleotide polymorphism (SNP), 2508C-->T (S836S), in exon 14 of the RET gene, characterized by low frequency among patients with HSCR and overrepresentation in individuals affected by sporadic medullary thyroid carcinoma. Typing of several different markers across the RET gene demonstrated that a whole conserved haplotype displayed anomalous distribution and nonrandom segregation in families with HSCR. We provide genetic evidence about a protective role of this low-penetrant haplotype in the pathogenesis of HSCR and demonstrate a possible functional effect linked to RET messenger RNA expression.
Databáze: OpenAIRE