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Gene expression analysis in Tyk2 deficient AOM/DSS colorectal tumors in mice

ABSTRACT: Gene expression analysis in Tyk2 deficient AOM/DSS colorectal tumors in mice

PROVIDER: PRJNA837873 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19190442.fastq.gz	Fastqsanger.gz
	SRR19190443.fastq.gz	Fastqsanger.gz
	SRR19190445.fastq.gz	Fastqsanger.gz
	SRR19190446.fastq.gz	Fastqsanger.gz
	SRR19190454.fastq.gz	Fastqsanger.gz

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Gene expression analysis in Tyk2 deficient AOM/DSS colorectal tumors in mice

Project description:The goal of this study was to determine differences in gene expression profiles in colonic tumors of AOM/DSS treated mice with a total (Tyk2KO) or conditional deletion of Tyk2 in the intestinal epithelium (Tyk2DIEC).

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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

AOM/DSS tumors 5FU+Irinotecan treatment

Project description:The tumor microenvironment plays a key role in the pathogenesis of colorectal tumors and contains various cell types including epithelial, immune, and mesenchymal cells. Characterization of the interactions between these cell types is necessary for revealing the complex nature of tumors. In this study, we used single-cell RNA-seq (scRNA-seq) to compare the tumor microenvironments between a mouse model of sporadic colorectal adenoma (Lrig1CreERT2/+;Apc2lox14/+) and a mouse model of inflammation-driven colorectal cancer induced by azoxymethane and dextran sodium sulfate (AOM/DSS). While both models develop tumors in the distal colon, we found that the two tumor types have distinct microenvironments. AOM/DSS tumors have an increased abundance of two populations of cancer-associated fibroblasts (CAFs) compared with APC tumors, and we revealed their divergent spatial association with tumor cells using multiplex immunofluorescence (MxIF) imaging. We also identified a unique squamous cell population in AOM/DSS tumors, whose origins were distinct from anal squamous epithelial cells. These cells were in higher proportions upon administration of a chemotherapy regimen of 5-Fluorouracil/Irinotecan. We used computational inference algorithms to predict cell-cell communication mediated by ligand-receptor interactions and downstream pathway activation, and identified potential mechanistic connections between CAFs and tumor cells, as well as CAFs and squamous epithelial cells. This study provides important preclinical insight into the microenvironment of two distinct models of colorectal tumors and reveals unique roles for CAFs and squamous epithelial cells in the AOM/DSS model of inflammation-driven cancer. This series comprises the drug treatment set as well as the fibroblast enrichment set.

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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

2013-05-10 | GSE44983 | GEO

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

2013-05-10 | GSE44904 | GEO

AOM/DSS tumors 5FU+Irinotecan treatment

Project description:AOM/DSS tumors 5FU+Irinotecan treatment

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Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and RNF138-/- mice colorectal transcriptomes in DSS, AOM/DSS and organoids samples

Project description:Purpose: Next-generation sequencing (NGS) has revolutionized systems-based analysis of cellular pathways. The goals of this study are to analysis NGS-derived transcriptome profiling (RNA-seq) in DSS induced chronic inflammation, AOM/DSS induced colitis-associated colorectal tumorigenesis and organoids isolation from colitis-associated colorectal tumorigenesis Methods: DSS, AOM/DSS and organoids mRNA profiles of wild-type (WT) and RING Finger 3 (RNF138−/−) mice were generated by deep sequencing, in triplicate, using Illumina HiSeq 2500. The sequence reads were trimmed for low-quality sequence, then mapped to mm10 whole genome using STAR v2.6.1d Results: Using an optimized data analysis workflow, the padj <0.05 and fold change >2 were refered as differential expression. There are 987, 2649 and 2373 differential genes were found in RNF138-/- compared with Wild Type in DSS, AOM/DSS and organoids, respectively Conclusions: Our study revealed NFκB pathway is the main activation pathway regulated by RNF138 loss

2022-04-30 | GSE144051 | GEO

Bulk RNA sequencing of epithelial cells from AOM-DSS mouse colorectal cancer (CRC)

Project description:Gamma-delta T cells prevent CRC. To understand the criticial role of Gamma-delta T cells in CRC, AOM-DSS tumors from mice lacking TCRγδ and with TCRγδ cells were used to isolate epithelial cells to study gene expression by bulk RNA sequencing.

2023-10-06 | GSE202689 | GEO

Genome-wide methylation analysis of AOM/DSS-induced colon tumors

Project description:Genome-wide methylation analysis was performed by methylated DNA immunoprecipitation (MeDIP)-CpG island (CGI) microarray analysis to identify candidate CGIs specifically methylated in mouse colon tumors associated with colitis. We sucessfully identified 23 candidate CGIs methylated in tumors. Two samples were analyzed by MeDIP-CGI microarray. One is a pool of two AOM/DSS-induced colon tumors in BALB/c mice and another is a pool of two normal colonic epithelial cell samples obtained from untreated BALB/c mice by the crypt isolation technique. The pool of normal colonic epithelial cell samples was used as reference. Dye-swaps were not perfromed. The methylation statuses of CGIs identified by microarray were confirmed by another method, methylation-specific PCR.

2011-06-30 | E-GEOD-21333 | biostudies-arrayexpress

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