Isotopomer analysis of MCF-7 breast cancer cell line incubated with 13C labelled glucose (GC-MS assay)

MS and NMR are two of the most powerful spectroscopic techniques used in the field of fluxomics, to analyze the flux distributions in cellular metabolomic pathways. Both of them possess pros and cons, such as, MS being the most sensitive and low-cost technique, while needs extensive sample processing and providing incomplete labeling data, whereas NMR needs lesser sample preparation and provides more detailed labeling data, while being less sensitive and expensive. Since both techniques could be viewed as complementary to each other, combining their data could yield a detailed and complete information about a system under study. In this case, samples were generated from a single experiment and the same set of samples was used both in MS and 1D NMR to analyze the 13C label distributions in TCA cycle intermediates. The data generated from both methods were used with a simulation script that was developed to integrate the MS and NMR data. MCF-7 breast cancer cell line was used as an experimental model and it was incubated with 100% [1,2-13C]-glucose and 100% [U-13C]-glucose for 8 hours. The cells, before and after incubation with tracers, were frozen in liquid nitrogen and then later processed for extracting the TCA cycle intermediates. Same set of samples were separated for GC-MS and NMR based analysis and processed for the respective techniques. The isotopologue analysis was performed by GC-MS and the isotopomer analysis was performed by NMR and both sets of data were integrated with the simulation software. This study contains the data for GC-MS analysis. The NMR assay for this study can be found in the MetaboLights study MTBLS241.
Linked Studies: MTBLS241