Powerful Integration Of Lipid Metabolic Profiling With Gene Expression Analysis

Main Category: Genetics
Also Included In: Biology / Biochemistry;  IT / Internet / E-mail;  Genetics
Article Date: 06 Nov 2007 - 7:00 PDT

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A recently published research article in the Journal of Proteome Research, authored by researchers from the Nestle Reserarch Center, Genomatix Software GmbH, Rosetta Inpharmatics LLC, CXR Biosciences Ltd, the Cancer Research UK Molecular Pharmacology Unit demonstrates the synergisms and enhanced analytic power of the combination of thorough metabolic profiling with the unique and proprietary microarray analysis methods of Genomatix Software GmbH.

The study elucidated the effects on Mouse lipid metabolism by the disruption of hepatic Cytochrome P450 reductase (POR) in a POR deficient knock-out mouse model. It clearly could demonstrate that though gene expression and lipid metabolism in extrahepatic tissues being sensitive to hepatic POR functionality, the lipidome in general is only minimally affected. Analysis of regulatory pathways and networks, observed expression changes and lipid profiling led to the conclusion that POR can be considered an enzyme critical for the proper functioning of lipid mobilization and metabolism predominantly within the mouse liver with only minor effects on lipid metabolism in the biological system at large.

The concordance between the two analytical platforms (Genomatix transcriptomic vs lipidomic) in the liver was excellent, and serves as a demonstration for the valid approach for generating novel hypüotheses to unravel protein function that cannot be accomplished with as much confiodence using either platform individually.

"I am very excited about the possibility to overlay metabolic profiles with expression data and pathway information. We see the strategies applied in this study as a prototype for further analyzes bringing together metabolomics and expression analysis in a multiple lines of evidence manner. " says Dr. Martin Seifert, co-author of the study and Vice President Microarray Business and Collaborative Research at Genomatix.

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Article adapted by Medical News Today from original press release.
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Citation:
Mutch DM, Klocke B, Morrison P, Murray CA, Henderson CJ, Seifert M, Williamson G (2007)
The Disruption of Hepatic Cytochrome P450 Reductase Alters Mouse Lipid Metabolism.
J Proteome Res. 6, 3976-3984 [PUBMED: 17722906]

About Genomatix:

Genomatix is a pioneer and leader in the analysis and understanding of eukaryotic gene regulation. Core competences at Genomatix are annotation driven microarray analysis, ChIP on chip, regulatory network and pathway mining, and promoter analysis on sequence level. Genomatix has published more than 170 peer reviewed scientific papers that have been cited in more than 4,000 papers. Over 35,000 researchers worldwide currently apply Genomatix tools and databases. More information is available from http://www.genomatix.de/.

Source: Klaus May
Genomatix Software GmbH