Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1988-2-8
|
pubmed:abstractText |
Malignant mesothelioma (MM) is a neoplasm closely associated with asbestos exposure, which has been implicated in 70-80% of the cases. In this study, nine MM (two fresh surgical specimens, two permanent cell lines, and five xenografts in nude mice) were examined cytogenetically. Six patients had a known history of asbestos exposure. Seven MM were chromosomally abnormal, the majority having complex structural alterations affecting different chromosomes, whereas two fresh surgical specimens had a normal chromosome constitution. Alterations of chromosome 3 were detected in seven cases and changes involving chromosomes 1 and 7 were observed in six cases. The breakpoints of translocations and deletions on chromosome 1 involved several bands; however, 50% of the breakpoints were near the locations of Blym, L-myc, and ski protooncogenes. Forty % of the breaks on chromosome 7 involved bands q11.1-11.2 and 20% were at q22, the location of the met protooncogene. Nonrandom changes on chromosome 3 were interstitial or terminal deletions, and translocations involving the region p14-21. The deleted 3p segment was identifiable as part of a chromosome translocation in one MM and was apparently lost in the other six. The deletions involving 3p are either spontaneous or asbestos-induced lesions at vulnerable genomic sites and are the most common and nonrandom chromosome alterations observed. Possibly 3p abnormalities are causally related to the development of this malignancy.
|
pubmed:grant | |
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0008-5472
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
1
|
pubmed:volume |
48
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
142-7
|
pubmed:dateRevised |
2007-11-14
|
pubmed:meshHeading |
pubmed-meshheading:3334988-Adult,
pubmed-meshheading:3334988-Aged,
pubmed-meshheading:3334988-Chromosome Aberrations,
pubmed-meshheading:3334988-Chromosome Deletion,
pubmed-meshheading:3334988-Chromosomes, Human, Pair 1,
pubmed-meshheading:3334988-Chromosomes, Human, Pair 3,
pubmed-meshheading:3334988-Chromosomes, Human, Pair 7,
pubmed-meshheading:3334988-Female,
pubmed-meshheading:3334988-Humans,
pubmed-meshheading:3334988-Male,
pubmed-meshheading:3334988-Mesothelioma,
pubmed-meshheading:3334988-Middle Aged,
pubmed-meshheading:3334988-Proto-Oncogenes,
pubmed-meshheading:3334988-Tumor Cells, Cultured
|
pubmed:year |
1988
|
pubmed:articleTitle |
Nonrandom chromosome alterations in human malignant mesothelioma.
|
pubmed:affiliation |
Laboratory of Biology, National Cancer Institute, Bethesda, Maryland 20892.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
|