Summary of Study ST000379

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench,, where it has been assigned Project ID PR000298. The data can be accessed directly via it's Project DOI: 10.21228/M8HW28 This work is supported by NIH grant, U2C- DK119886.


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Study IDST000379
Study TitleTemporal metabolomic responses of cultured HepG2 liver cells to high fructose and high glucose exposures
Study SummaryHigh fructose consumption has been implicated with deleterious effects on human health, including hyperlipidemia elicited through de novo lipogenesis. However, more global effects of fructose on cellular metabolism have not been elucidated. In order to explore the metabolic impact of fructose-containing nutrients, we applied both GC-TOF and HILIC-QTOF mass spectrometry metabolomic strategies using extracts from cultured HepG2 cells exposed to fructose, glucose, or fructose + glucose. Cellular responses were analyzed in a time-dependent manner, incubated in media containing 5.5 mM glucose + 5.0 mM fructose in comparison to controls incubated in media containing either 5.5 mM glucose or 10.5 mM glucose. Mass spectrometry identified 156 unique known metabolites and a large number of unknown compounds, which revealed metabolite changes due to both utilization of fructose and high-carbohydrate loads independent of hexose structure. Fructose was shown to be partially converted to sorbitol, and generated higher levels of fructose-1-phosphate as a precursor for glycolytic intermediates. Differentially regulated ratios of 3-phosphoglycerate to serine pathway intermediates in high fructose media indicated a diversion of carbon backbones away from energy metabolism. Additionally, high fructoseconditions changed levels of complex lipids toward phosphatidylethanolamines. Patterns of acylcarnitines in response to high hexose exposure (10.5 mM glucose or glucose/fructose combination) suggested a reduction in mitochondrial beta-oxidation.
University of California, Davis
DepartmentGenome and Biomedical Sciences Facility
LaboratoryWCMC Metabolomics Core
Last NameFiehn
First NameOliver
Address1315 Genome and Biomedical Sciences Facility, 451 Health Sciences Drive, Davis, CA 95616
Phone(530) 754-8258
Submit Date2016-04-14
Raw Data AvailableYes
Raw Data File Type(s)bin
Analysis Type DetailGC-MS
Release Date2016-04-25
Release Version1
Oliver Fiehn Oliver Fiehn application/zip

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Collection ID:CO000394
Collection Summary:HepG2 cells (ATCC HB-8065) were cultured in MEM containing 10 % (v:v) FBS, 100 U/mL penicillin and 100 mg/mL streptomycin (Invitrogen, Carlsbad, CA), 1 x MEM non-essential amino acids, and 5.5 mM glucose at 37 °C in a 5 % CO2 environment. Cells were grown for four to six passages in 10 cm tissue culture dishes with 14 mL MEM, and transferred to MULTIWELL™ 12 well culture dishes for incubation in 2 mL of the treatment medium. Upon reaching 80 % confluency, the cell culture medium was changed to media representative of experimental condition: 5.5 mM glucose MEM, 5.5 mM glucose MEM + 5 mM glucose, or 5.5 mM glucose MEM + 5 mM fructose. Media was replenished after 24 and 48 h. Cell material was collected at 10 min, 1, 6, and 24 h time points following the 48 h media replacement. Culture dishes were placed on ice and each well was washed twice with 1 mL ice-cold PBS. 4 mL ice-cold 3:1 methanol/H2O extraction solvent was added to each well. Cell material was manually scraped from each well, and the extraction solvent cell material suspension was transferred to collection tubes and frozen at −80 °C prior to further processing.
Collection Protocol Filename:metabolomic_responses_of_cultured_HepG2_liver_cells.pdf
Sample Type:Cell
Collection Location:Invitrogen, Carlsbad, CA
Collection Frequency:Cell material was collected at 10 min, 1, 6, and 24 h time points following the 48 h media replacement.
Tissue Cell Identification:HepG2