Nine Novel Germline Gene Variants in the RET Proto-Oncogene Identified in Twelve Unrelated Cases
| Autor: | W. Edward Highsmith, Karen Snow-Bailey, Syed A. Ahmed, Raymond G. Fenwick, Rong Mao, Weimin Sun |
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| Rok vydání: | 2005 |
| Předmět: |
Adult
Male Biology RET proto-oncogene Endocrine System Diseases Proto-Oncogene Mas DNA sequencing Pathology and Forensic Medicine Pheochromocytoma Exon Germline mutation medicine Humans Clinical significance Child Gene Germ-Line Mutation Aged Oncogene Proteins Genetics Proto-Oncogene Proteins c-ret Receptor Protein-Tyrosine Kinases Exons medicine.disease Molecular Medicine Female Regular Articles |
| Zdroj: | The Journal of Molecular Diagnostics. 7:283-288 |
| ISSN: | 1525-1578 |
| DOI: | 10.1016/s1525-1578(10)60556-9 |
| Popis: | We report nine novel DNA alterations in the RET proto-oncogene in 12 unrelated cases identified by DNA sequencing of exons 10 and 11 of the gene. The novel variants K666E, IVS9-11G--A, D631V in cis with H665Q, D631E (with C634Y), E623K (in trans with C618S), 616delGAG (in trans with C609Y), Y606C, C630R, and R635-T636insELCR;T636P were detected in patients with various clinical presentations ranging from thyroid goiter, medullary thyroid carcinoma, and pheochromocytoma to classic multiple endocrine neoplasia type 2A. When novel DNA alterations are found, extended family studies can be helpful in determining the clinical significance of such findings. Segregation within families suggests that K666E and T636insELCR;T636P are likely to be disease-causing mutations. However, the mechanism by which they affect the normal activity of the RET receptor is unclear. Absence of segregation with disease was observed for E623K and 616delGAG. For the remainder of the DNA alterations, family studies were not possible, and the clinical significance of these novel variants needs further assessment. Additional case reports, animal models, and/or functional studies are needed to determine the clinical significance of these newly identified variants. |
| Databáze: | OpenAIRE |
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