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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1995-9-6
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pubmed:abstractText |
Heat shock protein (HSP) expression is upregulated in tumour cells and, therefore, HSP expression is a likely marker of the malignant potential of oral epithelial lesions. Furthermore, the 70-kDa HSP (HSP 70) is implicated in the degree of tumour differentiation, the rate of tumour proliferation and the magnitude of the anti-tumour immune response. Accordingly, the distribution and intensity of HSP 70 expression was assessed in the epithelial compartment of oral squamous cell carcinoma (SCC, n = 29), dysplastic oral epithelium (n = 18) and benign oral mucosal lesions (n = 22) using avidin-biotin complex immunohistochemistry and microdensitometry under standardised conditions. Staining intensity was recorded in kilo-ohms (k omega). Normal oral mucosa (n = 15) was used for comparison, and results were analysed using Kruskall-Wallis and Fisher's exact tests. The distribution of HSP 70 expression in well differentiated SCC was significantly different from that in poorly differentiated SCC (P < 0.05), the latter demonstrating a more focal staining pattern. Median staining intensity in SCC (6.22 k omega), epithelial dysplasia (9.61 k omega) and the benign oral mucosal lesions (8.28 k omega) was significantly greater than that in normal oral mucosa (5.64 k omega; P < 0.05). Staining intensity in poorly differentiated SCC (7.66 k omega) was greater than that in moderately differentiated SCC (4.77 k omega), although this result just failed to reach statistical significance (P = 0.06). These results suggest that, as employed currently, HSP 70 expression is not a definitive marker of oral malignancy or malignant potential.(ABSTRACT TRUNCATED AT 250 WORDS)
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
D
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0964-1955
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
31B
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
63-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7627091-Carcinoma, Squamous Cell,
pubmed-meshheading:7627091-Epithelium,
pubmed-meshheading:7627091-HSP70 Heat-Shock Proteins,
pubmed-meshheading:7627091-Humans,
pubmed-meshheading:7627091-Immunohistochemistry,
pubmed-meshheading:7627091-Mouth Neoplasms,
pubmed-meshheading:7627091-Precancerous Conditions,
pubmed-meshheading:7627091-Tumor Markers, Biological
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pubmed:year |
1995
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pubmed:articleTitle |
Heat shock protein expression in oral epithelial dysplasia and squamous cell carcinoma.
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pubmed:affiliation |
Department of Dentistry, University of Queensland, Brisbane, Australia.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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