Genetic instability in fibroblasts of patients with thyroid cancers (TC)
β Scribed by D. B. Krizman; S. Pathak; N. A. Samaan; R. C. Hickey
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- French
- Weight
- 289 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0020-7136
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β¦ Synopsis
In cultured fibroblasts initiated from fresh tumor biopsies of 11 patients with thyroid tumors, 5 medullary carcinoma of the thyroid (MCT) and 6 papillary follicular, the chromosomes are relatively unstable when compared with those from control fibroblast cultures. Tumor-derived fibroblast samples showed a mean number of cells in metaphase with chromosome abnormalities at a frequency of 9.1% and a range of 6-13%, whereas 5 controls exhibited a mean frequency of 4% and a range of 3-5%. Our results indicate that genetic instability in thyroid cancer patients is present not only in peripheral blood cultures, as reported earlier, but in their fibroblast cultures as well.
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Hereditary non-polyposis colorectal cancer (HNPCC) is a dominantly inherited syndrome linked to DNA-mismatch-repair (MMR) gene defects, which also account for microsatellite instability (MSI) in tumour tissues. Diagnosis is based mainly on family history, according to widely accepted criteria (Amste
## Abstract ## Background. Hashimoto's thyroiditis (HT) and higher levels of thyroidβstimulating hormone (TSH) have been proposed as risk factors for papillary thyroid cancer (PTC), but this issue is still being debated. The purpose of this study was whether HT was related to the risk of PTC over