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SDH mutations in tumorigenesis and inherited endocrine tumours: lesson from the phaeochromocytoma-paraganglioma syndromes.
Pasini, B; Stratakis, C A.
Afiliación
  • Pasini B; Department of Genetics, Biology and Biochemistry, University of Turin, Via Santena 19, Turin 10126, Italy. barbara.pasini@unito.it
J Intern Med ; 266(1): 19-42, 2009 Jul.
Article en En | MEDLINE | ID: mdl-19522823
ABSTRACT
A genetic predisposition for paragangliomas and adrenal or extra-adrenal phaeochromocytomas was recognized years ago. Beside the well-known syndromes associated with an increased risk of adrenal phaeochromocytoma, Von Hippel Lindau disease, multiple endocrine neoplasia type 2 and neurofibromatosis type 1, the study of inherited predisposition to head and neck paragangliomas led to the discovery of the novel 'paraganglioma-phaeochromocytoma syndrome' caused by germline mutations in three genes encoding subunits of the succinate dehydrogenase (SDH) enzyme (SDHB, SDHC and SDHD) thus opening an unexpected connection between mitochondrial tumour suppressor genes and neural crest-derived cancers. Germline mutations in SDH genes are responsible for 6% and 9% of sporadic paragangliomas and phaeochromocytomas, respectively, 29% of paediatric cases, 38% of malignant tumours and more than 80% of familial aggregations of paraganglioma and phaeochromocytoma. The disease is characterized by autosomal dominant inheritance with a peculiar parent-of-origin effect for SDHD mutations. Life-time tumour risk seems higher than 70% with variable clinical manifestantions depending on the mutated gene. In this review we summarize the most recent knowledge about the role of SDH deficiency in tumorigenesis, the spectrum and prevalence of SDH mutations derived from several series of cases, the related clinical manifestantions including rare phenotypes, such as the association of paragangliomas with gastrointestinal stromal tumours and kidney cancers, and the biological hypotheses attempting to explain genotype to phenotype correlation.
Asunto(s)

Texto completo: 1 Base de datos: MEDLINE Asunto principal: Paraganglioma / Feocromocitoma / Succinato Deshidrogenasa / Síndromes Neoplásicos Hereditarios / Mutación de Línea Germinal Tipo de estudio: Risk_factors_studies Límite: Adolescent / Adult / Aged / Child / Child, preschool / Humans / Middle aged Idioma: En Revista: J Intern Med Asunto de la revista: MEDICINA INTERNA Año: 2009 Tipo del documento: Article País de afiliación: Italia

Texto completo: 1 Base de datos: MEDLINE Asunto principal: Paraganglioma / Feocromocitoma / Succinato Deshidrogenasa / Síndromes Neoplásicos Hereditarios / Mutación de Línea Germinal Tipo de estudio: Risk_factors_studies Límite: Adolescent / Adult / Aged / Child / Child, preschool / Humans / Middle aged Idioma: En Revista: J Intern Med Asunto de la revista: MEDICINA INTERNA Año: 2009 Tipo del documento: Article País de afiliación: Italia