| Transcriptional Networks Inferred from Molecular Signatures of Breast Cancer
Am J Pathol. 2008 Feb;172(2):495-509. Epub 2008 Jan 10
Researchers from various departments at the National Cancer Institute, Bethesda, Maryland, in collaboration with several universities used Ingenuity Pathways Analysis to identify networks that appeared most associated with the regulatory signatures found in the promoters of five different molecular sub types of breast cancer. The regulatory signatures were defined as an assembly of transcription factor binding sites (TFBSs) found to be non-randomly shared by several genes associated with a molecular phenotype. One of the networks associated with a particular subtype (ERBB2) identified a novel role for NF-kB and ERBB2 in a self amplifying, auto regulatory module. The existence of this pathway was then empirically validated.
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