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| pubmed-article:1281780 | lifeskim:mentions | umls-concept:C0086418 | lld:lifeskim |
| pubmed-article:1281780 | lifeskim:mentions | umls-concept:C0040300 | lld:lifeskim |
| pubmed-article:1281780 | lifeskim:mentions | umls-concept:C0040132 | lld:lifeskim |
| pubmed-article:1281780 | lifeskim:mentions | umls-concept:C0205282 | lld:lifeskim |
| pubmed-article:1281780 | lifeskim:mentions | umls-concept:C0205307 | lld:lifeskim |
| pubmed-article:1281780 | lifeskim:mentions | umls-concept:C2248595 | lld:lifeskim |
| pubmed-article:1281780 | lifeskim:mentions | umls-concept:C0017262 | lld:lifeskim |
| pubmed-article:1281780 | lifeskim:mentions | umls-concept:C2745888 | lld:lifeskim |
| pubmed-article:1281780 | pubmed:issue | 1-2 | lld:pubmed |
| pubmed-article:1281780 | pubmed:dateCreated | 1993-1-22 | lld:pubmed |
| pubmed-article:1281780 | pubmed:abstractText | Steady state mRNA transcript levels of thyroid differentiation markers such as TSH receptor (TSHR), thyroglobulin (Tg) and thyroid peroxidase (TPO) as well as a potential marker of dedifferentiation, c-myc, marker were investigated in patients with thyroid tumors and in normal controls using Northern blot analysis. Blots were normalized by acridine orange staining whereas analysis of beta-actin mRNA levels revealed highly variable levels already in normal tissue suggesting regulation of this "constitutively" expressed gene. Determination of c-myc mRNA revealed increased steady state mRNA levels in anaplastic carcinomas (ATC) as compared to normal tissues. However, in some patients c-myc transcript levels were lower in the tumor than in the adjacent normal tissue reducing the significance of c-myc as a marker of dedifferentiation. High levels of TSH mRNA were found in control thyroids, whereas in ATC no normal TSHR mRNA was detected. In PTC and follicular thyroid carcinomas (FTC) the transcripts varied from increased to markedly reduced levels. In one patient with FTC 2 independent preparations of the tumor revealed different results, undetectable and clearly detectable TSHR mRNA levels. Xenotransplantation of this tissue on nude rats showed a variable expression pattern in the individual xenotransplantations suggesting heterogeneity of the tumor tissue. Tg and TPO mRNA were strongly expressed in normal tissues and completely lost in all ATC. In differentiated thyroid tumors the transcript levels of Tg and TPO varied from normal to complete loss of expression of either Tg or TPO, or both.(ABSTRACT TRUNCATED AT 250 WORDS) | lld:pubmed |
| pubmed-article:1281780 | pubmed:language | eng | lld:pubmed |
| pubmed-article:1281780 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:1281780 | pubmed:citationSubset | IM | lld:pubmed |
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| pubmed-article:1281780 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:1281780 | pubmed:issn | 0232-7384 | lld:pubmed |
| pubmed-article:1281780 | pubmed:author | pubmed-author:von zur... | lld:pubmed |
| pubmed-article:1281780 | pubmed:author | pubmed-author:DralleHH | lld:pubmed |
| pubmed-article:1281780 | pubmed:author | pubmed-author:HornRR | lld:pubmed |
| pubmed-article:1281780 | pubmed:author | pubmed-author:BrabantGG | lld:pubmed |
| pubmed-article:1281780 | pubmed:author | pubmed-author:Hoang-VuCC | lld:pubmed |
| pubmed-article:1281780 | pubmed:author | pubmed-author:MaenhautCC | lld:pubmed |
| pubmed-article:1281780 | pubmed:author | pubmed-author:ScheumannGG | lld:pubmed |
| pubmed-article:1281780 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:1281780 | pubmed:volume | 100 | lld:pubmed |
| pubmed-article:1281780 | pubmed:geneSymbol | c-myc | lld:pubmed |
| pubmed-article:1281780 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:1281780 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:1281780 | pubmed:pagination | 51-6 | lld:pubmed |
| pubmed-article:1281780 | pubmed:dateRevised | 2006-11-15 | lld:pubmed |
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| pubmed-article:1281780 | pubmed:year | 1992 | lld:pubmed |
| pubmed-article:1281780 | pubmed:articleTitle | Gene expression of differentiation- and dedifferentiation markers in normal and malignant human thyroid tissues. | lld:pubmed |
| pubmed-article:1281780 | pubmed:affiliation | Department of Clinical Endocrinology, Medical School of Hannover, Germany. | lld:pubmed |
| pubmed-article:1281780 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:1281780 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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