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Mus musculus strain:C57BL/6J

ABSTRACT: Nicotine oral administration attenuates DSS-induced colitis through upregulation of indole in the distal colon and rectum in mice

PROVIDER: PRJDB12420 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	DRR321695_1.fastq.gz	Fastqsanger.gz
	DRR321695_2.fastq.gz	Fastqsanger.gz
	DRR321696_1.fastq.gz	Fastqsanger.gz
	DRR321696_2.fastq.gz	Fastqsanger.gz
	DRR321697_1.fastq.gz	Fastqsanger.gz

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Anatabine ameliorates intestinal inflammation and reduces the production of pro-inflammatory factors in a dextran sulfate sodium mouse model of colitis.

Project description:Objective: In this study, we aimed to evaluate the anti-inflammatory properties of nicotine and anatabine in a dextran sulfate sodium (DSS) mouse model of ulcerative colitis (UC). Methods: C57BL/6 male mice (10 groups with 8 animals each) were orally administered nicotine at a concentration of 5 or 20 mg/kg body weight or anatabine at a concentration of 5 or 20 mg/kg body weight for a total of 21 days. Colitis was induced by oral administration of 3.5% DSS in drinking water ad libitum during days 14–21. Colonic samples were collected for transcriptomic analysis and multi-analyte profiling (MAP). Results: Oral administration of anatabine, but not nicotine, reduced the clinical symptoms of DSS-induced colitis. The result of gene expression analysis suggested that anatabine had a restorative effect on global DSS-induced gene expression profiles, while nicotine only had limited effects. Accordingly, MAP findings revealed that anatabine reduced the colonic abundance of DSS-associated cytokines and increased IL‑10 abundance. Conclusions: Our results support the reduction of inflammatory effects by anatabine in the DSS mouse model of UC.

2020-11-03 | E-MTAB-8543 | biostudies-arrayexpress

Transcriptional profiling of murine distal colon from C57BL/6 (WT) and Stat2KO mice during acute DSS colitis.

Project description:Experimental colitis was induced in mice by the administration of 2% (w/v) Dextran sulfate sodium salt (DSS, colitis grade, 36-50kDa, MP Biomedicals) in the drinking water for 7 days followed by normal drinking water w/o DSS. Distal colons were collected two days later.

2023-10-01 | E-MTAB-12655 | biostudies-arrayexpress

Transcriptional profiling of murine distal colon from C57BL/6 (WT), Il20KO, Il20raKO and Il20rbKO mice during acute DSS colitis

Project description:Experimental colitis was induced in mice by the administration of 1.5% (w/v) Dextran sulfate sodium salt (DSS, colitis grade, 36-50kDa, MP Biomedicals) in the drinking water for 7 days followed by normal drinking water w/o DSS. Distal colons were collected two days later.

2023-10-01 | E-MTAB-12737 | biostudies-arrayexpress

Gene expression profiling of proximal versus distal mouse colon during AOM/DSS-induced colitis-associated carcinogenesis.

Project description:In humans with UC, low-grade dysplasia also develops predominantly in the distal colon, progresses more rapidly to neoplasia than proximal colon low-grade dysplasia and associates with worse patient prognosis. In a mouse model of colitis-associated carcinogenesis induced by administration of the mutagen AOM and the luminal toxin DSS, tumors also develop exclusively in the distal part of the large intestine. We monitored global changes in the transcriptome of mouse proximal and distal colon during exposure to AOM/DSS with the aim to define biological pathways and processes that characterize regional responses of the large intestine to colitis-associated carcinogenesis.

2015-06-01 | GSE64658 | GEO

Gene expression profiling of colitis-associated and sporadic colorectal tumors in mice

Project description:To uncover molecular mechanisms specifically involved in the pathogenesis of colitis-associated colon cancer (CAC), we studied tumorigenesis in experimental models of CAC and sporadic CRC that mimic characteristics of human CRC. Using comparative whole genome expression profiling, we observed differential expression of epiregulin (Ereg) in mouse models of colitis-associated, but not sporadic colorectal cancer. Similarly, highly significant upregulation of Ereg expression was found in cohorts of patients with colitis-associated cancer in inflammatory bowel disease but not in sporadic colorectal cancer. Furthermore, tumor-associated fibroblasts were identified as major source of Ereg in colitis-associated neoplasias. Functional studies showed that Ereg-deficient mice, although more prone to colitis, are strongly protected from colitis-associated tumors, and data from serial endoscopic studies revealed that Ereg promotes growth rather than initiation of tumors. 4 samples of individual distal colitis-associated tumors (CAC) from 4 mice, 2 samples of tumor-free distal colon epithelium with a pool of 5 mice per sample (CAC contr), 5 samples of individual Apcmin/+ tumors from the distal colorectum of 5 mice (sporCRC) and 3 samples of tumor-free distal colon epithelium (pool of 4 mice per sample) (sporCRC contr). Colitis-associated tumorigenesis was performed by intraperitoneal injection of Azoxymethane (10mg/kg) (Sigma) into C57BL/6J wildtype mice followed by 3 cycles of Dextran Sodium Sulfate (DSS) in drinking water. Each DSS-cycle was composed of DSS (2.5% (w/v) (MP Biomedicals) in drinking water for 7 days, followed by a recovery phase with regular drinking water for 14 days. Sporadic tumors were from C57BL/6J-ApcMin/+/J mice. All tumors were obtained from the from the lower 6th of the large intestine and they had the same size covering between Â¼ and up to Â½ of the colonic circumferenc as evaluated by mini-endoscopy.

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Project description:Oral administration of dextran sulfate sodium (DSS) to mice induces ulceration and inflammation in the colons of mice. These changes are somewhat similar to those seen in human inflammatory bowel disease. Here we provide a full transcriptome (RNA-Seq) analysis of different gastrointestinal tissues in the regions affected by the DSS chemical, at different timepoints during the injury-inflammation-recovery cycle. The profiled regions include the distal colon (rectum), where the histological changes are most pronounced, the mid-colon, the anus, which is relatively resistant to damage, and the squamous neo-epithelium of the colon, a skin-like tissue that is found in the colon and is believed to be associated with wound healing. We find that administration of DSS is associated with upregulation of cytokines and inflammatory markers. Moreover, stem cell markers of the homeostatic colonic epithelium are depleted, consistent with reprogramming of epithelia to adopt a wound-healing phenotype. Thus, this dataset faithfully recovers broad changes in gene expression in a mouse model of inflammatory bowel disease-like damage.

2022-02-14 | GSE168053 | GEO

Expression data from untreated and DSS-treated Adamts12 WT and KO mice

Project description:Adamts12-deficient mice undergo more severe colitis than WT mice after induction with DSS. We used microarrays to determine the gene expression differences between Adamts12-deficient and WT mice during ulcerative colitis induced with DSS (dextran sodium sulfate) Fragments of distal colon from DSS-treated (2% DSS during 7 days and 1 day of recovery) and untreated Adamts12-deficient and WT mice were obtained for RNA extraction and hybridiztion with Affymetrix microarrays

2012-09-01 | E-GEOD-40529 | biostudies-arrayexpress

mRNAs and miRNAs expression data from AOM/DSS, AOM, DSS and control mouse colon epithelial tissue at day100 when tumor formed in AOM/DSS bearing mice --- miRNA microarray

Project description:To find out which miRNAs are significantly differential expression and potentially involved in the process of inflammation promoting carcinogenesis of colorectal cancer (CRC). We established a colitis-associated CRC (AOM/DSS, Azoxymethane/Dextran sulfate sodium salt) model, colitis (DSS) model and high dose carcinogen (AOM, about 5 times AOM amount given than AOM/DSS model) model. At day 100 when tumor formed in AOM/DSS bearing mice (colitis-associated CRC mice) but no tumor was found in AOM (high dose carcinogen) and DSS model, we employed miRNA microarray as a discovery platform to identify genes with the potential to involve in the progression of CRC promoted by inflammation. 5-7 weeks female BALB/c mice, (1) AOM/DSS group: AOM 12.5mg/kg i.p. at day 1, DSS drinking 5d/21dx3circles from day 5; (2) AOM group: AOM 10mg/kg i.p. 1/weekx6 from day 1; (3) DSS group: DSS drinking 5d/21dx3circles from day 5. The distal colon epithelial tissues were collected at day100 when tumor formed in AOM/DSS bearing mice. The miRNA microarray experiments were performed together.

2013-05-10 | E-GEOD-44983 | biostudies-arrayexpress

mRNAs and miRNAs expression data from AOM/DSS, AOM, DSS and control mouse colon epithelial tissue at day100 when tumor formed in AOM/DSS bearing mice --- mRNA expression data

Project description:To find out which mRNAs are significantly differential expression and potentially involved in the process of inflammation promoting carcinogenesis of colorectal cancer (CRC). We established a colitis-associated CRC (AOM/DSS, Azoxymethane/Dextran sulfate sodium salt) model, colitis (DSS) model and high dose carcinogen (AOM, about 5 times AOM amount given than AOM/DSS model) model. At day 100 when tumor formed in AOM/DSS bearing mice (colitis-associated CRC mice) but no tumor was found in AOM (high dose carcinogen) and DSS model, we employed whole genome microarray expression profiling as a discovery platform to identify genes with the potential to involve in the progression of CRC promoted by inflammation. 5-7 weeks female BALB/c mice, (1) AOM/DSS group: AOM 12.5mg/kg i.p. at day 1, DSS drinking 5d/21dx3circles from day 5; (2) AOM group: AOM 10mg/kg i.p. 1/weekx6 from day 1; (3) DSS group: DSS drinking 5d/21dx3circles from day 5. The distal colon epithelial tissues were collected at day100 when tumor formed in AOM/DSS bearing mice. The whole genome microarray expression profiling experiments were performed together.

2013-05-10 | E-GEOD-44904 | biostudies-arrayexpress

A functional genomics predictive network model identifies regulators of inflammatory bowel disease: Ribo-zero RNAseq mouse distal colon DSS Colitis model of genetically engineered mice

Project description:Ribo-zero RNAseq experiments were carried out with mouse distal colon DSS Colitis model of genetically engineered mice. For each mouse line for: Gpsm3 (3% DSS), Aif1 (3% DSS), Nckap1l (Hem1), Dock2 (3% DSS), Dok3 (3.5% DSS) DSS treatment for five days followed by water for 5 days, (7 days for Nckap1l). Tissue was collected at Day 10 (Day 12 for Nckap1l (HEM1)).

2017-07-07 | GSE83550 | GEO

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