Microsatellite instability and expression of hMLH1 and hMSH2 proteins in ovarian endometrioid cancer View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2004-01

AUTHORS

Jinsong Liu, Constance T Albarracin, Ki-Hong Chang, Jennifer A Thompson-Lanza, Wenxin Zheng, David M Gershenson, Russell Broaddus, Rajyalakshmi Luthra

ABSTRACT

Microsatellite instability and loss of heterozygosity has been implicated in ovarian carcinogenesis. The reported frequency of microsatellite instability in human ovarian cancer varies significantly owing to the use of heterogeneous tumor histotypes and various microsatellite markers in different laboratories. In this study, we determined the frequency of microsatellite instability in 74 ovarian endometrioid carcinomas using four microsatellite markers (BAT25, BAT26, D5S346, D17S250), and examined hMLH1 and hMSH2 protein expression. In all, 20% of the tumors were microsatellite instability high (two or more markers showing instability) and 12% were microsatellite instability low (one marker showed instability). Loss of hMLH1 and/or hMSH2 expression was found in nine of 15 microsatellite instability-high tumors. The microsatellite instability-high phenotype tended to occur more frequently in low-grade tumors (P=0.053), but did not correlate with clinical stage. Totally, 38% of cases also displayed loss of heterozygosity at D17S250; this loss of heterozygosity was associated with high clinical stage (P=0.097). Our results indicate that both microsatellite and loss of heterozygosity at D17S250 are involved in the development of ovarian endometrioid carcinoma. More... »

PAGES

75

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/modpathol.3800017

DOI

http://dx.doi.org/10.1038/modpathol.3800017

DIMENSIONS

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PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/14631366


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curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.1038/modpathol.3800017'

Turtle is a human-readable linked data format.

curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1038/modpathol.3800017'

RDF/XML is a standard XML format for linked data.

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1038/modpathol.3800017'


 

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