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Series GSE59648 Query DataSets for GSE59648
Status Public on Jul 23, 2014
Title Divergent influence of microRNA-21 deletion on murine colitis phenotypes [mRNA]
Organism Mus musculus
Experiment type Expression profiling by array
Summary Background: MicroRNAs (miRNAs) acting as negative regulators of gene expression are differentially expressed in intestinal tissues of patients with inflammatory bowel disease (IBD). Assessing the functional role of miRNAs in murine models of colitis facilitates elucidating the role of specific miRNAs in human IBD. The aim of this study was to determine the miRNA signature of murine models of colitis and to assess the influence of miR-21 on intestinal inflammation. Methods: miRNAs expression was accessed by microarray for acute and chronic murine model of colitis induced by DSS or TNBS. miR-21-deficient mouse and littermates controls were assessed in the standard DSS, TNBS and CD4+ T cell transfer models of colitis. RNAs of mouse colon and CD4+CD45RBHigh cells were analyzed by miRNA and mRNA microarray, and quantitative RT-PCR. Th1 polarization was accessed by flow-cytometry and ELISA. Results: Alterations of in miRNAs expression were identified for acute and chronic DSS colitis and TNBS colitis, receptively. The Expression of miRs-21, -142-3p and -223 was were distinct between DSS and TNBS models while overlap of numerous miRNAs was seen. Importantly, miRs-19b, -192 and -215, that are decreased in IBD, were significantly decreased in all 4 models of colitis. miR-21, which is increased in IBD, was increased in TNBS colitis but not the DSS colitis models. Further assessment of the miR-21-deficient 1-/- mice revealed that the deletion of miR-21 results in the exacerbation of both the TNBS and T cell-transfer models of colitis. Conclusions: miRNAs are differentially expressed in both human IBD and murine colitis, with overlap of several IBD-associated miRNAs. The demonstration that miR-21 deletion exacerbated CD4+ T cell-mediated models of colitis provides further evidence that miRNAs play significant roles in the pathogenesis of IBD.
Overall design Gene expression profiles were established for normal miR-21-/- mice and wild type c57BL/6 mice (WT). Total of 6 samples with replicates were included in this study.
Contributor(s) Wu F, Dong F, Arendovich N, Zhan J, Huang Y, Kwon JH
Citation(s) 25222661
Submission date Jul 22, 2014
Last update date Jun 14, 2018
Contact name Yong Huang
Phone (434) 243-0842
Organization name University of Viginia
Department Medicine
Street address 1340 Jefferson Park Ave
City Charlottesville
State/province VA
ZIP/Postal code 22908
Country USA
Platforms (1)
GPL6885 Illumina MouseRef-8 v2.0 expression beadchip
Samples (6)
GSM1441432 wild type,replicate 1
GSM1441433 wild type,replicate 2
GSM1441434 MiR-21 knockout replicate 1
This SubSeries is part of SuperSeries:
GSE59651 Divergent influence of microRNA-21 deletion on murine colitis phenotypes
BioProject PRJNA255861

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
GSE59648_Non-normalized_data.txt.gz 1.9 Mb (ftp)(http) TXT
GSE59648_RAW.tar 3.1 Mb (http)(custom) TAR
Raw data are available on Series record
Processed data included within Sample table

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