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Series GSE59494 Query DataSets for GSE59494
Status Public on May 26, 2015
Title Comparison of the effects of five dietary fibers on mucosal transcriptional profiles, and luminal microbiota composition and SCFA concentrations in murine colon
Organism Mus musculus
Experiment type Expression profiling by array
Summary Consumption of diets rich in fibers has been associated with several beneficial effects on gastrointestinal health. However, detailed studies on the molecular effects of fibers in colon are limited. In this study we investigated and compared the influence of five different fibers on the mucosal transcriptome, and luminal microbiota and SCFA concentrations in murine colon. Mice were fed diets enriched with fibers that differed in carbohydrate composition, namely inulin (IN), oligofructose (FOS), arabinoxylan (AX), guar gum (GG), resistant starch (RS) or a control diet (corn starch) for 10 days. Gene expression profiling revealed the regulation of specific, but also overlapping sets of epithelial genes by each fiber, which on a functional level were mainly linked to cell cycle and various metabolic pathways including fatty acid oxidation, tricarboxylic acid cycle, and electron transport chain. In addition, the transcription factor PPAR was predicted to be a prominent upstream regulator of these processes. Microbiota profiles were distinct per dietary fiber, but the fibers IN, FOS, AX and GG induced a common change in microbial groups. All dietary fibers, except resistant starch, increased SCFA concentrations but to a different extent. Multivariate data integration revealed strong correlations between the expression of genes involved in energy metabolism and the relative abundance of bacteria belonging to the group of Clostridium cluster XIVa, that are known butyrate producers. These findings illustrate the potential of multivariate data analysis to unravel simple relationships in complex systems.

Keywords: Expression profiling by array
 
Overall design Mice received a control diet, or a diet supplemented with 10% dietary fibers for 10 days. After an overnight fast colon was removed, epithelial cells were scraped off, and subjected to gene expression profiling.
 
Contributor(s) Lange K, Müller M, Hooiveld GJ
Citation(s) 25914036
Submission date Jul 16, 2014
Last update date Apr 18, 2017
Contact name Guido Hooiveld
E-mail(s) guido.hooiveld@wur.nl
Organization name Wageningen University
Department Div. Human Nutrition & Health
Lab Nutrition, Metabolism & Genomics Group
Street address HELIX, Stippeneng 4
City Wageningen
ZIP/Postal code NL-6708WE
Country Netherlands
 
Platforms (1)
GPL11533 [MoGene-1_1-st] Affymetrix Mouse Gene 1.1 ST Array [transcript (gene) version]
Samples (35)
GSM1055777 Colon_inulin_repl1
GSM1055778 Colon_inulin_repl2
GSM1055779 Colon_inulin_repl3
Relations
BioProject PRJNA255428

Download family Format
SOFT formatted family file(s) SOFTHelp
MINiML formatted family file(s) MINiMLHelp
Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE59494_RAW.tar 157.2 Mb (http)(custom) TAR (of CEL)
Raw data provided as supplementary file
Processed data included within Sample table

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