Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Expression data from small intestine crypts of Zfp148gt/+APCMin/+ and Zfp148+/+APCMin/+ mice

ABSTRACT: The transcription factor Zinc finger protein 148 (Zfp148) interacts physically with the tumor suppressor p53, but the siginficance of this interaction is not known. We recently showed that knockout of Zfp148 in mice leads to ectopic activation of p53 in tissues and cultured fibroblasts, suggesting that Zfp148 represses p53 activity. Here we hypothesized that targeting Zfp148 would unleash p53 activity and protect against cancer development, and test this idea in the APCMin/+ mouse model of intestinal adenomas. Crypt-enriched tissues were isolated by laser microdissection (PALM) from the small intestines (proximal) of Zfp148gt/+APCMin/+ and Zfp148+/+APCMin/+ mice for RNA extraction and hybridization to Affymetrix microarrays.

ORGANISM(S): Mus musculus

SUBMITTER: Per Lindahl

PROVIDER: E-GEOD-77773 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Expression data from mouse breast cancer tissue: Serglycin heterozygous and knock-out conditions

Project description:Serglycin proteoglycans contribute to proper storage and secretion of inflammatory mediators in hematopoietic cells. Serglycin is also expressed in cancer cells where increased expression has been linked to poor prognosis. In the present study we report that serglycin proteoglycan is absolutely required for metastasis in the MMTV-PyMT-driven mouse breast cancer model. Serglycin seems to play a role in promoting epithelial to mesenchymal transition, cancer-related inflammation and extravasation. Our results suggest that serglycin and serglycin-dependent mediators are potential drug targets to prevent metastatic disease/dissemination of cancer. 6 total breast tumor samples were analyzed. 3 of SG+/- and 3 of SG-/- tumour tissue. Raw data was normalized using the robust multi-array average (RMA) method. To identify potential serglycin-regulated mediators of metastasis, we performed a microarray expression analysis of RNA isolated from SG+/- and SG-/- breast tumor tissue. The expression analysis identified 672 genes with a significantly altered expression level, at log2 fold >Â±1,2. Strikingly, only six genes were up-regulated in the SG-/- PyMT+ tumor cells compared to SG+/- PyMT+ tumor cells while 666 were significantly down-regulated.

2016-06-01 | E-GEOD-67806 | biostudies-arrayexpress

Expression data in liver from germ-free and conventional mice fed lard or fish oil for 11 weeks

Project description:Dietary lipids and gut microbiota may both influence adipose tissue physiology. By feeding conventional and germ-free mice high fat diets with different lipid compositon we aimed to investigate how dietary lipids and the gut microbiota interact to influence inflammation and metabolism in the liver Wild-type C57Bl/6 male mice 11 weeks of age were fed isocaloric diets (45% kcal fat) with either menhaden fish oil (Research Diets, D05122102) or lard (Research Diets, D10011202) for 11 weeks. Liver samples were harvested at the end of the experiment and analyzed by microarray.

2016-02-29 | E-GEOD-73195 | biostudies-arrayexpress

Ablation of Lgr5-positive cells in intestinal polyps from ApcMin;Lgr5DTR mice

Project description:We performed RNAseq on intestinal polyps from diptheria toxin-treated ApcMin;Lgr5DTR mice to investigate the effect of an acute selective pressure on stem cell populations in intestinal lesions. Lgr5+ cells in the ApcMin;Lgr5DTR mice were ablated with a single intraperitoneal dose of diphtheria toxin in saline (50 μg/kg), and samples were collected after 24 hours and after 5 days. Untreated ApcMin mice were used as control. Intestinal polyps were excised and collected for RNA sequencing.

2022-06-30 | E-MTAB-10470 | biostudies-arrayexpress

APOL1 renal-risk variants induce mitochondrial dysfunction (Affymetrix 2)

Project description:To assess differential gene expression by APOL1 renal-risk (2 risk alleles) vs. non-risk (G0G0) genotypes in primary proximal tubule cells (PTCs), global gene expression (mRNA) levels were examined on Affymetrix HTA 2.0 arrays in primary PTCs cultured from non-diseased kidney in African Americans without CKD who underwent nephrectomy for localized renal cell carcinoma. To detect differentially expressed gene profiles attributable to APOL1 renal-risk genotypes, African American primary proximal tubule cells with two APOL1 renal-risk alleles (N=5) and lacking renal-risk alleles (N=25) were included in comparisons of global gene expression.

2016-08-23 | E-GEOD-85920 | biostudies-arrayexpress

Effect of dietary methyl donor depletion on gene expression in normal colons of ApcMin mice

Project description:Expression profiles of normal colons in ApcMin mice that were fed methyl deficient diet for 11 weeks vs controls Expression profiles of normal colons in ApcMin mice that were fed methyl deficient diet for 11 weeks vs controls fed methyl donor sufficient diets

2012-04-30 | E-GEOD-37010 | biostudies-arrayexpress

The Apcmin mouse has altered hematopoietic stem cell function and provides a model for MPD/MDS

Project description:Apc, a negative regulator of the canonical Wnt signaling pathway, is a bona-fide tumor suppressor whose loss of function results in intestinal polyposis. APC is located in a commonly deleted region on human chromosome 5q, associated with myelodysplastic syndrome (MDS) suggesting that haploinsufficiency of APC contributes to the MDS phenotype. Analysis of the hematopoietic system of mice with the Apcmin allele that results in a premature stop codon and loss of function, showed no abnormality in steady state hematopoiesis. Bone marrow derived from Apcmin mice showed enhanced repopulation potential, indicating of a cell intrinsic gain of function in the long-term hematopoietic stem cell (HSC) population. However, Apcmin bone marrow was unable to repopulate secondary recipients due to loss of the quiescent HSC population. Apcmin mice developed a myelodysplastic/ myeloproliferative phenotype. Our data indicate that Wnt activation through haploinsufficiency of Apc causes insidious loss of HSC function that is only evident in serial transplantation strategies. These data provide a cautionary note for HSC expansion strategies through Wnt pathway activation, provide evidence that cell extrinsic factors can contribute to the development of myeloid disease and indicate that loss of function of APC may contribute to the phenotype observed in patients with MDS and del(5q). LKS+ cells were isolated from Apcmin or WT mice using high-speed multiparameter flow cytometry. At least 2x104 cells per mouse were isolated with confirmed purity in excess of 90%. The cells were treated with RLT lysis buffer (Qiagen) containing beta-mercaptoethanol to stabilize RNA. RNA was extracted using Qiagen RNeasy Micro Kit according to manufacturers instruction. The RNA was amplified using a linear amplification protocol (Nugen Ovation V2 amplification system). cDNA was fragmented and biotinylated before hybridization onto Affymetrix mouse genome 430 2.0 Array chips

2010-02-21 | E-GEOD-20352 | biostudies-arrayexpress

APOL1 renal-risk variants induce mitochondrial dysfunction

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2016-08-23 | E-GEOD-85921 | biostudies-arrayexpress

Profound chemopreventative effects of a hydrogen sulfide-releasing NSAID in the APCMin/+ mouse model of intestinal tumorigenesis

Project description:Nonsteroidal anti-inflammatory drugs have been shown to reduce the incidence of gastrointestinal cancers, but the propensity of these drugs to cause ulcers and bleeding limits their use. H2S has been shown to be a powerful cytoprotective and anti-inflammatory substance in the digestive system. This study explored the possibility that a H2S-releasing nonsteroidal anti-inflammatory drug (ATB-346) would be effective in a murine model of hereditary intestinal cancer (APCMin+ mouse) and investigated potential mechanisms of action via transcriptomics analysis. Daily treatment with ATB-346 was significantly more effective at preventing intestinal polyp formation than naproxen. Significant beneficial effects were seen with a treatment period of only 3-7 days, and reversal of existing polyps was observed in the colon. ATB-346, but not naproxen, significantly decreased expression of intestinal cancer-associated signaling molecules (cMyc, Î²-catenin). Transcriptomic analysis identified 20 genes that were up-regulated in APCMin+ mice, 18 of which were reduced to wild-type levels by one week of treatment with ATB-346. ATB-346 is a novel, gastrointestinal-sparing anti-inflammatory drug that potently and rapidly prevents and reverses the development of pre-cancerous lesions in a mouse model of hereditary intestinal tumorigenesis. These effects may be related to the combined effects of suppression of cyclooxygenase and release of H2S, and correction of most of the APCMin+-associated alterations in the transcriptome. ATB-346 may represent a promising agent for chemoprevention of tumorigenesis in the GI tract and elsewhere. Total RNA obtained from colon of APCMin/+ mice treated for 7 days with vehicle, ATB-346 or naproxen. Tissue collected 7 weeks after the final dose of drug

2016-01-20 | E-GEOD-76928 | biostudies-arrayexpress

Genome-wide analysis of gene expression profile of Intestinal (ILEUM) Tumors from APCmin/+/VP16LXRa vs APCmin/+/VP16

Project description:Changes in gene expression profile of intestinal (ILEUM) Tumors from APCmin/+/VP16LXRa vs APCmin/+/VP16. The hypothesis tested in the present study was that LXRa overexpression influence cancer growth modulating lipid metabolism in cancer cells. Results provide the information that LXRa induces genes encoding proteins able to regulate cholesterol efflux. Total RNA obtained from Ileum tumors from APCmin/+/VP16LXRa mice was compared to total RNA extracted from APCmin/+/VP16 mice.

2013-02-05 | E-GEOD-44071 | biostudies-arrayexpress

Genome-wide analysis of gene expression profile of Intestinal (COLON) Tumors from APCmin/+/VP16LXRa vs APCmin/+/VP16

Project description:Changes in gene expression profile of intestinal (COLON) Tumors from APCmin/+/VP16LXRa vs APCmin/+/VP16. The hypothesis tested in the present study was that LXRa overexpression influence cancer growth modulating lipid metabolism in cancer cells. Results provide the information that LXRa induces expression of genes encoding proteins able to regulate cholesterol efflux. Total RNA obtained from colonic tumors from APCmin/+/VP16LXRa mice was compared to total RNA extracted from APCmin/+/VP16 mice.

2013-02-05 | E-GEOD-44070 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data