Abstract
Metabolomics and metabolic flux analysis (MFA) are powerful tools in the arsenal of methodologies of systems biology. Currently, metabolomics techniques are applied routinely for biomarker determination. However, standard metabolomics techniques only provide static information about absolute or relative metabolite amounts. The application of stable-isotope tracers has opened up a new dimension to metabolomics by providing dynamic information of intracellular fluxes and, by extension, enzyme activities. In the first part of the manuscript we review experimental and computational technologies applicable for metabolomics analyses. In the second part we present current technologies based on the use of stable isotopes and their applications to the analysis of cellular metabolism. Beginning with the determination of mass isotopomer distributions (MIDs), we review technologies for metabolic flux analysis (MFA) and conclude with the presentation of a new methodology for the non-targeted analysis of stable-isotope labeled metabolomics data.
Keywords: Metabolomics, metabolic flux analysis, mass isotopomer distribution, GC/MS, LC/MS, stable isotope, metabolite, quenching of metabolism, Nanostructure-Initiator Mass Spectrometry (NIMS), high performance liquid chromatography
Current Pharmaceutical Biotechnology
Title: Elucidation of Cellular Metabolism Via Metabolomics and Stable-Isotope Assisted Metabolomics
Volume: 12 Issue: 7
Author(s): Karsten Hiller, Christian Metallo and Gregory Stephanopoulos
Affiliation:
Keywords: Metabolomics, metabolic flux analysis, mass isotopomer distribution, GC/MS, LC/MS, stable isotope, metabolite, quenching of metabolism, Nanostructure-Initiator Mass Spectrometry (NIMS), high performance liquid chromatography
Abstract: Metabolomics and metabolic flux analysis (MFA) are powerful tools in the arsenal of methodologies of systems biology. Currently, metabolomics techniques are applied routinely for biomarker determination. However, standard metabolomics techniques only provide static information about absolute or relative metabolite amounts. The application of stable-isotope tracers has opened up a new dimension to metabolomics by providing dynamic information of intracellular fluxes and, by extension, enzyme activities. In the first part of the manuscript we review experimental and computational technologies applicable for metabolomics analyses. In the second part we present current technologies based on the use of stable isotopes and their applications to the analysis of cellular metabolism. Beginning with the determination of mass isotopomer distributions (MIDs), we review technologies for metabolic flux analysis (MFA) and conclude with the presentation of a new methodology for the non-targeted analysis of stable-isotope labeled metabolomics data.
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Cite this article as:
Hiller Karsten, Metallo Christian and Stephanopoulos Gregory, Elucidation of Cellular Metabolism Via Metabolomics and Stable-Isotope Assisted Metabolomics, Current Pharmaceutical Biotechnology 2011; 12 (7) . https://dx.doi.org/10.2174/138920111795909096
DOI https://dx.doi.org/10.2174/138920111795909096 |
Print ISSN 1389-2010 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4316 |
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