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Gene expression analysis of IL-17 induced mice small intestinal smooth muscle strips with or without 6-shogaol.

ABSTRACT: The etiology of post-inflammatory gastrointestinal (GI) motility dysfunction, after resolution of acute symptoms of inflammatory bowel diseases (IBD) and intestinal infection, is largely unknown. Here, using an established mouse model of experimental enteritis, we show that enhancement of smooth muscle cell (SMC) contraction by interleukin (IL)-17A may be involved in postinflammatory GI hypermotility. To examine the effect of IL-17 in the small intestinal smooth muscle, we used whole genome microarray expression profiling to find out the genes which respond to IL-17 stimulus. The smooth muscle strips were peeled off from mouse small intestine and incubated 24h with or without IL-17. And we also examined the effect of 6-shogaol, which is one of the ingredients of Japanese traditional medicine for intestinal mortor disorder, Daikenchuto, in IL-17 stimulated small intestinal smooth muscle strip. The smooth muscle strips were peeled off from mice small intestine and incubated in the culture media for 24h with or without IL-17. A part of IL-17 stimulated strips were co-incubated with 6-shogaol. Six independent experiments were performed.

ORGANISM(S): Mus musculus

SUBMITTER: Mitsue Nishiyama

PROVIDER: E-GEOD-39573 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Gene expression analysis of IL-17 induced mice small intestinal smooth muscle strips with or without 6-shogaol.

Project description:The etiology of post-inflammatory gastrointestinal (GI) motility dysfunction, after resolution of acute symptoms of inflammatory bowel diseases (IBD) and intestinal infection, is largely unknown. Here, using an established mouse model of experimental enteritis, we show that enhancement of smooth muscle cell (SMC) contraction by interleukin (IL)-17A may be involved in postinflammatory GI hypermotility. To examine the effect of IL-17 in the small intestinal smooth muscle, we used whole genome microarray expression profiling to find out the genes which respond to IL-17 stimulus. The smooth muscle strips were peeled off from mouse small intestine and incubated 24h with or without IL-17. And we also examined the effect of 6-shogaol, which is one of the ingredients of Japanese traditional medicine for intestinal mortor disorder, Daikenchuto, in IL-17 stimulated small intestinal smooth muscle strip.

2012-09-15 | GSE39573 | GEO

RNA-seq of intestinal crypts vs intestinal smooth muscle with a specific MMP17 deletion compared to wild-type

Project description:We wanted to assess the role of a specific smooth muscle protein (MMP17) in two different intestinal compartments, the epithelium (crypts) and the smooth muscle. To do that we isolate intestinal crypts from wild-type (WT) and knockout (KO, Mmp17-/-) mice, and obtained clean strips of smooth muscle. After muscle dissociation, we obtained RNA directly from crypts and muscle, and it was used for RNA-seq. By comparing WT and KO samples we observed a higher impact in gene expression affecting crypts, even though MMP17 is only expressed in muscle. This helped us to identify altered signaling pathways in KO crypts that linked MMP17 with SMAD4 and BMP signaling.

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Project description:Gene expression analysis of IL-17 induced mice small intestinal smooth muscle strips with or without 6-shogaol.

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Project description:We generated genome-wide methylation data from primary cultured airway smooth muscle cells (ASMCs) exposed to IL-13, IL-17, IL-13+IL-17, and vehicle. This data was generated in combination with genome-wide expression data from the same individuals.

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Genome-wide gene expression study in primary cultured airway smooth muscle cells

Project description:We generated genome-wide expression data from primary cultured airway smooth muscle cells (ASMCs) exposed to IL-13, IL-17, IL-13+IL-17, and vehicle. This data was generated in combination with genome-wide methylation data from the same individuals.

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Smooth muscle-specific MMP17 (MT4-MMP) defines the intestinal ECM niche

Project description:Smooth muscle is an essential component of the intestine, both to maintain its structure and produce peristaltic and segmentation movements. However, very little is known about other putative roles that smooth muscle may have. Here, we show that smooth muscle is the dominant supplier of BMP antagonists, which are niche factors that are essential for intestinal stem cell maintenance. Furthermore, muscle-derived factors can render epithelium reparative and fetal-like, which includes heightened YAP activity. Mechanistically, we find that the matrix metalloproteinase MMP17, which is exclusively expressed by smooth muscle, is required for intestinal epithelial repair after inflammation- or irradiation-induced injury. Furthermore, we provide evidence that MMP17 affects intestinal epithelial reprogramming indirectly by cleaving the matricellular protein PERIOSTIN, which itself is able to activate YAP. Together, we identify an important signaling axis that firmly establishes a role for smooth muscle as a modulator of intestinal epithelial regeneration and the intestinal stem cell niche.

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Smooth muscle-specific MMP17 (MT4-MMP) defines the intestinal ECM niche

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Transcription profiling of rat thrombin-stimulated vascular smooth muscle cells

Project description:The strength and duration of extracellular signal-regulated kinases 1/2 (ERK1/2) phosphorylation can define the phenotypic outcome of cells. Stimualtion of the proteinase-activated receptor (Par) triggers a Gi-dependent long-lasting transactivation of the epidermal growth factor receptor and subsequent ERK1/2 phosphorylation. To understand the mechnaisms underlying this signaling cascade, microarray analysis was performed in vascular smooth muscle cells. Experiment Overall Design: Par receptors on neonatal rat aortic smooth muscle cells were stimulated with thrombin or TRAP in presence or abscence of Gi-uncoupling pertussis toxin.

2009-05-02 | E-GEOD-15841 | biostudies-arrayexpress

DNA methylation, through DNMT1, has an essential role in the development of gastrointestinal smooth muscle cells and disease (BiSulfite-seq)

Project description:DNA methylation is a key epigenetic modification that can regulate gene expression. Genomic DNA hypomethylation is commonly found in many gastrointestinal (GI) diseases. Dysregulated gene expression in GI smooth muscle cells (GI-SMC) can lead to motility disorders. However, the consequences of genomic DNA hypomethylation within GI-SMC are still elusive. Utilizing a Cre-lox murine model, we have generated SMC-restricted DNA methyltransferase 1 (Dnmt1) knockout (KO) mice and analyzed the effects of Dnmt1 deficiency. Dnmt1-KO pups are born smaller than their wild type littermates, have shortened GI tracts, lose peristaltic movement due to loss of the tunica muscularis in their intestine, causing massive intestinal dilation, and death around post-natal day 21. Within smooth muscle tissue, significant CpG hypomethylation occurs across the genome at promoters, introns and exons. Additionally, there is a marked loss of differentiated SMC markers (Srf, Myh11, miR-133, miR-143/145), an increase in pro-apoptotic markers (Nr4a1, Gadd45g), loss of cellular connectivity, and an accumulation of coated vesicles within SMC. Interestingly, we observed consistent abnormal expression patterns of enzymes involved in DNA methylation between both ¬Dnmt1-KO mice and diseased human GI tissue. These data demonstrate that DNA hypomethylation in embryonic SMC, via congenital Dnmt1 deficiency, contributes to massive dysregulation of gene expression and is lethal to GI-SMC. These results suggest that Dnmt1 has a necessary role in the embryonic, primary development process of SMC with consistent patterns being found in human GI diseased tissue.

2018-02-13 | GSE109641 | GEO

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