| pubmed-article:19142186 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:19142186 | lifeskim:mentions | umls-concept:C0086418 | lld:lifeskim |
| pubmed-article:19142186 | lifeskim:mentions | umls-concept:C0546837 | lld:lifeskim |
| pubmed-article:19142186 | lifeskim:mentions | umls-concept:C1171362 | lld:lifeskim |
| pubmed-article:19142186 | lifeskim:mentions | umls-concept:C0243044 | lld:lifeskim |
| pubmed-article:19142186 | lifeskim:mentions | umls-concept:C0017262 | lld:lifeskim |
| pubmed-article:19142186 | lifeskim:mentions | umls-concept:C1515670 | lld:lifeskim |
| pubmed-article:19142186 | lifeskim:mentions | umls-concept:C1825534 | lld:lifeskim |
| pubmed-article:19142186 | lifeskim:mentions | umls-concept:C1999216 | lld:lifeskim |
| pubmed-article:19142186 | lifeskim:mentions | umls-concept:C0675974 | lld:lifeskim |
| pubmed-article:19142186 | lifeskim:mentions | umls-concept:C0302350 | lld:lifeskim |
| pubmed-article:19142186 | lifeskim:mentions | umls-concept:C1882932 | lld:lifeskim |
| pubmed-article:19142186 | lifeskim:mentions | umls-concept:C1521840 | lld:lifeskim |
| pubmed-article:19142186 | pubmed:issue | 2 | lld:pubmed |
| pubmed-article:19142186 | pubmed:dateCreated | 2009-1-23 | lld:pubmed |
| pubmed-article:19142186 | pubmed:abstractText | Heat shock protein 90 (Hsp90) has been demonstrated to protect oncogenic variants of signalling molecules from degradation and may consequently serve as a therapeutic target for the treatment of oesophageal cancer for which adequate therapy is often lacking. We studied the expression of Hsp90 in tumour tissues of human oesophageal cancer and the impact of Hsp90 inhibition on oesophageal cancer cell lines using the drug 17-allylamino-17-demethoxygeldanamycin (17-AAG). Quantitative immunohistochemistry was performed on formalin-fixed paraffin-embedded tissues from patients with oesophageal cancer. In squamous cell carcinoma, a marked upregulation of Hsp90 could be noted in dysplastic epithelium and invasive cancer compared with normal epithelium. In adenocarcinoma, Hsp90 was expressed in neoplastic epithelium and also in normal non-neoplastic glands weakly. The inhibition of Hsp90 using 17-AAG led to a significant decrease in cell proliferation and viability in human oesophageal cancer cell lines. Using a clonogenic cell survival assay, Hsp90 inhibition significantly sensitised the cells for gamma-photon irradiation. Heat shock protein 90 was found to be critical for proper signalling induced by both epidermal growth factor and insulin-like growth factor-1, in which the inhibition of signalling by 17-AAG correlated with the observed reduction in cell proliferation and viability. These results showed that Hsp90 was selectively expressed in oesophageal cancer tissue compared with the corresponding normal tissue, and the inhibition of Hsp90 resulted in decreased proliferation and viability as well as radiosensitisation of oesophageal cancer cells. Heat shock protein 90 represents a potential therapeutic target in the treatment of patients with oesophageal cancer, alone or in combination with radiotherapy. | lld:pubmed |
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| pubmed-article:19142186 | pubmed:language | eng | lld:pubmed |
| pubmed-article:19142186 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:19142186 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:19142186 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:19142186 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:19142186 | pubmed:month | Jan | lld:pubmed |
| pubmed-article:19142186 | pubmed:issn | 1532-1827 | lld:pubmed |
| pubmed-article:19142186 | pubmed:author | pubmed-author:GeddaLL | lld:pubmed |
| pubmed-article:19142186 | pubmed:author | pubmed-author:LennartssonJJ | lld:pubmed |
| pubmed-article:19142186 | pubmed:author | pubmed-author:EkmanSS | lld:pubmed |
| pubmed-article:19142186 | pubmed:author | pubmed-author:JogN VNV | lld:pubmed |
| pubmed-article:19142186 | pubmed:author | pubmed-author:WandersAA | lld:pubmed |
| pubmed-article:19142186 | pubmed:author | pubmed-author:BergstromSS | lld:pubmed |
| pubmed-article:19142186 | pubmed:author | pubmed-author:BergqvistMM | lld:pubmed |
| pubmed-article:19142186 | pubmed:author | pubmed-author:HesseliusPP | lld:pubmed |
| pubmed-article:19142186 | pubmed:author | pubmed-author:GullboJJ | lld:pubmed |
| pubmed-article:19142186 | pubmed:author | pubmed-author:WardegaPP | lld:pubmed |
| pubmed-article:19142186 | pubmed:author | pubmed-author:TingeBB | lld:pubmed |
| pubmed-article:19142186 | pubmed:author | pubmed-author:SoomanLL | lld:pubmed |
| pubmed-article:19142186 | pubmed:issnType | Electronic | lld:pubmed |
| pubmed-article:19142186 | pubmed:day | 27 | lld:pubmed |
| pubmed-article:19142186 | pubmed:volume | 100 | lld:pubmed |
| pubmed-article:19142186 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:19142186 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:19142186 | pubmed:pagination | 334-43 | lld:pubmed |
| pubmed-article:19142186 | pubmed:dateRevised | 2010-9-22 | lld:pubmed |
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