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dc.contributor.authorKnowles, Lynn M
dc.contributor.authorSmith, Jeffrey W
dc.date.accessioned2013-06-10T13:06:23Z
dc.date.available2013-06-10T13:06:23Z
dc.date.issued2007-06-12
dc.identifier.citationBMC Genomics. 2007 Jun 12;8(1):168
dc.identifier.urihttp://dx.doi.org/10.1186/1471-2164-8-168
dc.identifier.urihttp://hdl.handle.net/10724/19499
dc.description.abstractAbstract Background The lipogenic enzyme fatty acid synthase (FAS) is up-regulated in a wide variety of cancers, and is considered a potential metabolic oncogene by virtue of its ability to enhance tumor cell survival. Inhibition of tumor FAS causes both cell cycle arrest and apoptosis, indicating FAS is a promising target for cancer treatment. Results Here, we used gene expression profiling to conduct a global study of the cellular processes affected by siRNA mediated knockdown of FAS in MDA-MB-435 mammary carcinoma cells. The study identified 169 up-regulated genes (≥ 1.5 fold) and 110 down-regulated genes (≤ 0.67 fold) in response to knockdown of FAS. These genes regulate several aspects of tumor function, including metabolism, cell survival/proliferation, DNA replication/transcription, and protein degradation. Quantitative pathway analysis using Gene Set Enrichment Analysis software further revealed that the most pronounced effect of FAS knockdown was down-regulation in pathways that regulate lipid metabolism, glycolysis, the TCA cycle and oxidative phosphorylation. These changes were coupled with up-regulation in genes involved in cell cycle arrest and death receptor mediated apoptotic pathways. Conclusion Together these findings reveal a wide network of pathways that are influenced in response to FAS knockdown and provide new insight into the role of this enzyme in tumor cell survival and proliferation.
dc.titleGenome-wide changes accompanying knockdown of fatty acid synthase in breast cancer
dc.typeJournal Article
dc.date.updated2013-06-07T06:30:29Z
dc.description.versionPeer Reviewed
dc.language.rfc3066en
dc.rights.holderLynn M Knowles et al.; licensee BioMed Central Ltd.


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