Molecular Analysis of Pheochromocytoma after Maternal Transmission of SDHD Mutation Elucidates Mechanism of Parent-of-Origin Effect
| العنوان: | Molecular Analysis of Pheochromocytoma after Maternal Transmission of SDHD Mutation Elucidates Mechanism of Parent-of-Origin Effect |
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| المؤلفون: | Alexander Fletcher, E. Marie Freel, Edward S. Tobias, Victoria Murday, H. Rosemarie Davidson, Nicola Bradshaw, Phey M. Yeap, Eleni Mavraki, A. Cooke, Colin Perry, Robert S. Lindsay |
| المصدر: | The Journal of Clinical Endocrinology & Metabolism. 96:E2009-E2013 |
| بيانات النشر: | The Endocrine Society, 2011. |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | Male, medicine.medical_specialty, Endocrinology, Diabetes and Metabolism, DNA Mutational Analysis, Clinical Biochemistry, Adrenal Gland Neoplasms, Loss of Heterozygosity, Context (language use), Pheochromocytoma, Biology, Biochemistry, Loss of heterozygosity, Endocrinology, Germline mutation, Paraganglioma, Internal medicine, medicine, Humans, Alleles, Germ-Line Mutation, Chromosomes, Human, Pair 11, Biochemistry (medical), medicine.disease, Molecular biology, Pedigree, Succinate Dehydrogenase, Mutation (genetic algorithm), Female, SDHD, Genomic imprinting |
| الوصف: | Pheochromocytoma/paraganglioma occurs almost exclusively after paternal transmission of succinate dehydrogenase D (SDHD) mutations. This parent-of-origin effect has not been fully explained but is accompanied by obligate loss of the maternal copy of chromosome 11. Loss of wild-type SDHD and an additional imprinted gene (hypothesized to be H19) appears necessary for tumor formation. Two previous reports suggested tumor formation after maternal transmission of SDHD mutation, but histological and molecular characterization was unavailable.We report the first kindred in which histologically confirmed pheochromocytoma/paraganglioma occurred after maternal transmission of an SDHD mutation and investigate the molecular mechanism of tumor formation.The design of the investigation was the study of a three-generation family with SDHD c.242CT (p.Pro81Leu) mutation.The index patient had a histologically confirmed pheochromocytoma and an identical SDHD germline mutation (p.Pro81Leu) to her mother (who had a glomus jugulare tumor) and paraganglioma tissue from her maternal grandfather. Tumor DNA from the index patient revealed loss of heterozygosity (LOH) at 11q23, causing loss of the wild-type paternal SDHD allele and LOH affecting maternal 11p15, including H19. These two regions of LOH were separated by a region exhibiting clearly retained heterozygosity, including SDHAF2, a recently reported paraganglioma susceptibility gene.Tumor formation can occur after maternal transmission of SDHD, a finding with important clinical implications for SDHD families. Tumor formation in SDHD mutation requires the loss of both the wild-type SDHD allele and maternal 11p15, leading to the predominant but now not exclusive pattern of disease inheritance after paternal SDHD transmission. |
| تدمد: | 1945-7197 0021-972X |
| DOI: | 10.1210/jc.2011-1244 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63dde068cc3db5bad698810c020daa5e https://doi.org/10.1210/jc.2011-1244 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....63dde068cc3db5bad698810c020daa5e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19457197 0021972X |
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| DOI: | 10.1210/jc.2011-1244 |