Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9-10
pubmed:dateCreated
1995-11-22
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0171-5216
pubmed:author
pubmed:issnType
Print
pubmed:volume
121
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
577-81
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
High K-ras mutation rates in goblet-cell-type adenocarcinomas of the lungs.
pubmed:affiliation
Department of Pathology, Cancer Institute, Tokyo, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't