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2004 DEC 2 - (NewsRx.com & NewsRx.net) -- Scientists at the University of Jena, in Germany, report that gene expression profiles can help differentiate types of cervical precancers.
"The molecular signatures of 20 severe cervical intraepithelial neoplasia (CIN3) cases and 10 cervical squamous cell cancers were determined to define cancer-related gene expression profiles. RNAs extracted from microdissected tissues were amplified by SMART technology and used as probes for hybridization of commercially available cDNA array filters comprising 1,176 cancer-related genes," according to a study by I. Sopov and colleagues.
"Ninety-two differentially expressed genes were identified by comparison of pooled cDNA from CIN3 vs. cervical cancer. Heterogeneity in expression of this subset of genes was then analyzed for each biopsy using an algorithm for self-organizing maps," the researchers said.
"For several gene clusters, the expression pattern for CIN3 differed significantly from that of cancer. Moreover, hierarchical clustering revealed significant differences in distribution of CIN and cancer," they wrote.
"Several CIN cases were more strongly related to cancer, ...