Bc-GenExMiner 3.0: New Mining Module Computes Breast Cancer Gene Expression Correlation Analyses

Overview

Journal Database (Oxford)

Specialty Biology

Date 2013 Jan 18

PMID 23325629

Citations 156

Authors

Pascal Jezequel

Jean-Sebastien Frenel

Loic Campion

Catherine Guerin-Charbonnel

Wilfried Gouraud

Gabriel Ricolleau

Mario Campone

Affiliations

Soon will be listed here.

Abstract

We recently developed a user-friendly web-based application called bc-GenExMiner (http://bcgenex.centregauducheau.fr), which offered the possibility to evaluate prognostic informativity of genes in breast cancer by means of a 'prognostic module'. In this study, we develop a new module called 'correlation module', which includes three kinds of gene expression correlation analyses. The first one computes correlation coefficient between 2 or more (up to 10) chosen genes. The second one produces two lists of genes that are most correlated (positively and negatively) to a 'tested' gene. A gene ontology (GO) mining function is also proposed to explore GO 'biological process', 'molecular function' and 'cellular component' terms enrichment for the output lists of most correlated genes. The third one explores gene expression correlation between the 15 telomeric and 15 centromeric genes surrounding a 'tested' gene. These correlation analyses can be performed in different groups of patients: all patients (without any subtyping), in molecular subtypes (basal-like, HER2+, luminal A and luminal B) and according to oestrogen receptor status. Validation tests based on published data showed that these automatized analyses lead to results consistent with studies' conclusions. In brief, this new module has been developed to help basic researchers explore molecular mechanisms of breast cancer. DATABASE URL: http://bcgenex.centregauducheau.fr

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