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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-8-17
pubmed:abstractText
Thyroid transcription factor 1 (TTF-1) is essential for thyroid differentiation and regulates expression of thyroglobulin, thyroid peroxidase, sodium/iodide symporter, and thyrotropin receptor (TSH-R) genes. Because thyrotropin (TSH) upregulates these same genes, we hypothesized TSH-R activation might increase TTF-1 and that TTF-1 might be differentially expressed in benign and malignant thyroid disease. TTF-1 expression and sub-cellular localization were determined by immunohistochemistry in 62 thyroid carcinomas, 15 benign lesions, and 2 normal thyroids. Nuclear TTF-1 was detected in benign (77%) and malignant lesions (69%), with similar intensity in both (1.1+/-0.19 versus 1.0+/-0.10). Nuclear TTF-1 staining correlated with the effective serum TSH level (p = 0.02) and patient age (p < 0.05). Nuclear TTF-1 was detected in 35 papillary thyroid carcinomas (PTC), of which 23% developed recurrent or persistent disease, and was absent from 18 PTC, of which only 6% recurred (p = 0.06). We conclude that nuclear TTF-1 correlates with serum TSH activity, increases with age, and may be increased in persistent or recurrent PTC.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0091-7370
pubmed:author
pubmed:issnType
Print
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
245-52
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Nuclear localization of thyroid transcription factor-1 correlates with serum thyrotropin activity and may be increased in differentiated thyroid carcinomas with aggressive clinical course.
pubmed:affiliation
Department of Pediatrics, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA.
pubmed:publicationType
Journal Article