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Detection of cancer-related gene expression profiles in severe cervical neoplasia

✍ Scribed by Igor Sopov; Till Sörensen; Mandy Magbagbeolu; Lars Jansen; Katrin Beer; Rosemarie Kühne-Heid; Richard Kirchmayr; Achim Schneider; Matthias Dürst

Publisher
John Wiley and Sons
Year
2004
Tongue
French
Weight
641 KB
Volume
112
Category
Article
ISSN
0020-7136

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✦ Synopsis

Abstract

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. 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. 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. Several CIN cases were more strongly related to cancer, suggesting that gene expression profiling may be useful for subdividing pathologically indistinguishable precancers into different biologic entities. This approach also provides a basis for the identification of putative prognostic markers and for targeted molecular therapy. © 2004 Wiley‐Liss, Inc.

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