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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9-10
|
pubmed:dateCreated |
1995-11-22
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pubmed:abstractText |
Adenocarcinomas of the lungs show a variable histology. We have subclassified such lesions into five cell types: hobnail, columnar, polygonal, mixed and goblet cell types, and investigated their relationships with K-ras mutations. Codons 12, 13 and 61 of the K-ras gene in 120 surgically resected pulmonary adenocarcinomas were examined by the mutation-allele-specific amplification method. Point mutations were observed in 10% of the adenocarcinomas limited to K-ras codon 12 and the commonest base substitution (nine cases) was a G to T transversion. Of the five types, goblet cell lesions demonstrated the highest mutation index, which at 100% (6/6) was significantly different from that of all other cell types. No relationship between K-ras mutation and cigarette smoking was observed. From these findings, it appears that development of goblet-cell-type adenocarcinomas of the lung may involve different carcinogenic mechanisms from adenocarcinomas of other subtypes.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:issn |
0171-5216
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
121
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
577-81
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7559740-Adenocarcinoma,
pubmed-meshheading:7559740-Base Sequence,
pubmed-meshheading:7559740-Cell Differentiation,
pubmed-meshheading:7559740-DNA Primers,
pubmed-meshheading:7559740-Female,
pubmed-meshheading:7559740-Genes, ras,
pubmed-meshheading:7559740-Humans,
pubmed-meshheading:7559740-Lung Neoplasms,
pubmed-meshheading:7559740-Male,
pubmed-meshheading:7559740-Molecular Sequence Data,
pubmed-meshheading:7559740-Point Mutation,
pubmed-meshheading:7559740-Proto-Oncogene Proteins p21(ras)
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pubmed:year |
1995
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pubmed:articleTitle |
High K-ras mutation rates in goblet-cell-type adenocarcinomas of the lungs.
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pubmed:affiliation |
Department of Pathology, Cancer Institute, Tokyo, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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