Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2001-6-6
pubmed:abstractText
Barrett esophagus (BE) is a condition in which the normal squamous epithelium of the esophagus is replaced by a metaplastic columnar epithelium. BE is a premalignant lesion that represents the initial step in a metaplasia-dysplasia-carcinoma sequence. In the present study, amplification of the proto-oncogene c-myc was determined by means of differential polymerase chain reaction analysis of metaplastic specialized epithelium, low-grade dysplasia, high-grade dysplasia, and invasive adenocarcinoma obtained by microscopic dissection of 43 esophagectomy specimens. Amplification of c-myc was found in none of 29 specialized epithelial specimens, none of 23 low-grade dysplasia specimens, 6 of 24 high-grade dysplasia specimens, and 17 of 39 adenocarcinoma specimens. Our data indicate that amplification of c-myc is a late event in the metaplasia-dysplasia-carcinoma sequence in BE. Furthermore, determination of c-myc amplification may help identify high-risk patients who would benefit from intensified endoscopic surveillance or from immediate treatment.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0002-9173
pubmed:author
pubmed:issnType
Print
pubmed:volume
115
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
835-40
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Frequent c-myc amplification in high-grade dysplasia and adenocarcinoma in Barrett esophagus.
pubmed:affiliation
Department of Pathology, University of Düsseldorf, Düsseldorf, Germany.
pubmed:publicationType
Journal Article, Review, Case Reports, Research Support, Non-U.S. Gov't