Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

31 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Transcription profiling of rat to investigate technical and biological variability on the Agilent platform

ABSTRACT: In this experiment, there are replicate measurements of gene expression in a group of similarly treated animals measured in such a way as to provide data for comparison of technical variation with biological variability. The data are twelve microarray measurements on each of six rats that were subject to the same control-group treatment. The twelve measurements encompass triplicate measures of RNA from the liver, from the kidney, and from two mixtures of both RNAs.

ORGANISM(S): Rattus norvegicus

SUBMITTER: Anne Bergstrom Lucas

PROVIDER: E-TABM-555 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Transcription profiling of rat liver and kidney mixtures on an Affymetrix platform to assess technical and biological variability

2008-08-12 | E-TABM-536 | biostudies-arrayexpress

Transcription profiling of rat liver and kidney mixtures on an Illumina platform to assess technical and biological variability

Project description:In this experiment, there are replicate measurements of gene expression in a group of similarly treated animals measured in such a way as to provide data for comparison of technical variation with biological variability. The data are twelve microarray measurements on each of six rats that were subject to the same control-group treatment. The twelve measurements encompass triplicate measures of RNA from the liver, from the kidney, and from two mixtures of both RNAs. IMPORTANT: 6C-1 and 1-6B1 are outlier because of poor cRNA yield. 4A-1 (low cRNA yield too) and 4D-1 seems to have been switched during processing. 2D1 and 5A3 were also mistake (samples picked from the wrong well in the original 96 plates) as they seems to cluster with B samples (75% liver-25% Kidney).

2008-09-18 | E-TABM-554 | biostudies-arrayexpress

Changes in follistatin levels by BRCA1 may serve as a regulator of ovarian carcinogenesis

Project description:Follistatin is a folliculogenesis regulating protein that has been found in relatively high concentration in the female ovarian tissues. Follistatin acts as an antagonist to the function of Activin, which is often found elevated in ovarian carcinogenesis and thus presents a possibility for therapeutic intervention in controlling ovarian cancer. Most of the ovarian cancer occurs in its ovarian surface epithelium (OSE) cells. Although breast cancer susceptibility gene 1 (BRCA1) is a known tumor suppressor for breast cancer but its role in ovarian cancer is beginning to unfold. We have shown that in ovarian carcinoma cells (SKOV3), stable overexpression of BRCA1 stimulates Follistatin secretion and simultaneously downregulates Activin expression. Moreover, knock down of BRCA1 in immortalized OSE (IOSE) cells from human ovarian tissue demonstrates downregulation of Follistatin secretion with simultaneous up regulation of Activin expression. IOSE cells generated from an ovarian cancer patient with BRCA1 mutation failed to secrete Follistatin in the medium. Our results indicate a novel function for BRCA1 in the form of regulation of the expression of Follistatin in the ovarian cells. 3 treatments vs 3 controls

2011-07-02 | E-GEOD-30296 | biostudies-arrayexpress

intellectual_disability_4634

Project description:Comparative genomic hybridization of a test DNA from a patient with intellectual disability and a reference DNA

2013-11-28 | E-MTAB-2124 | biostudies-arrayexpress

TAS002

Project description:Teresa Alves dos Santos: En1 -/- mouse midbrain E13.5 against pooled control +/+ littermates

2013-08-07 | E-TABM-1104 | biostudies-arrayexpress

FJ001

Project description:RNA was isolated from dissected ventral midbrains of E14.5 Pitx3-/- and Pitx3+/+ mouse embryos. 3 Experimental samples each consisting of 3 Pitx3-/- ventral midbrains were hybridized to reference RNA derived from 10 Pitx3+/+ ventral midbrains

2011-01-12 | E-TABM-1209 | biostudies-arrayexpress

Azacytidine time course on MCF7 cells

Project description:MCF7 cells at 80% confluency were treated with 5 micromolar azacytidine with gene expression profiling determined at 0, 1, 2, 3, 4, 6 and 12 hours of exposure to compound. Keywords: time course Approximately 5,000,000 million cells were plated into 10 cm plates from a common pool. Cells were grown in DMEM supplemented with 10% foetal calf serum until 80% confluency was attained. Cells were then exposed to 5 micromolar azacytidine prepared as a 10 millimolar stock in DMSO. Each time point was represented by three biological replicates. Total RNA was extracted from the cells using the trizol method and RNA samples were validated for integrity throughout the isolation and extraction procedure. All gene expression profiles showed similar distributions with similar raw median intensities.

2008-01-11 | E-GEOD-10145 | biostudies-arrayexpress

siRNA profiling of human MCF7 cells with elimination of either TFAP2C or TFAP2A reveals TFAP2C regulates multiple pathways of estrogen signaling

Project description:We were interested in determining what genes might be controlled by TFAP2C and/or TFAP2A, either directly or indirectly through regulation of ER-alpha and potentially other signaling pathways. We performed an microarray analysis in MCF7 cells with elimination of either TFAP2C or TFAP2A. The patterns of gene expression with alteration of TFAP2 activity were compared to changes in expression induced by estrogen exposure. Knock-down of TFAP2C in the presence of estrogen altered the pattern of several known ERalpha-regulated genes and a number of genes outside the estrogen-regulated pathways. Experiment Overall Design: 6 samples were analyzed. Experiment Overall Design: 1. MCF7 cells treated with TFAP2C siRNA, without the presence of estrogen. Experiment Overall Design: 2.MCF7 cells treated with TFAP2C siRNA, with the presence of estrogen. Experiment Overall Design: 3.MCF7 cells treated with TFAP2A siRNA, without the presence of estrogen. Experiment Overall Design: 4.MCF7 cells treated with TFAP2A siRNA, with the presence of estrogen. Experiment Overall Design: 5.MCF7 cells with no siRNA treatment, without the presence of estrogen. Experiment Overall Design: 6.MCF7 cells with no siRNA treatment, with the presence of estrogen.

2008-06-16 | E-GEOD-8640 | biostudies-arrayexpress

Transcription profiling of matching human primary head and neck squamous cell carcinomas and cervical lymph node metastases.

Project description:An experiment was performed to investigate the perservation of gene expression upon metastasis of primary head and neck squamous cell carcinomas to the cervical lymph node.

2006-10-23 | E-TABM-114 | biostudies-arrayexpress

EH001: Lmx1a is an activator of Rgs4 and Gbr10 and is responsible for the correct specification of rostral and medial mdDA neurons

Project description:The LIM homeodomain transcription factor Lmx1a is a very potential inducer of stem cells towards dopaminergic neurons. Despite several studies on the function of this gene, the exact in vivo role of Lmx1a in mesodiencephalic dopamine (mdDA) neuronal specification is still not understood. To analyze the genes functioning downstream of Lmx1a, we performed expression microarray analysis of LMX1A overexpressing MN9D dopaminergic cells. Several interesting regulated genes were identified, based on their regulation in other, previously generated expression arrays, and their expression pattern in the developing mdDA neuronal field. Post analysis through in vivo expression analysis in Lmx1a mouse mutant (drJ/drJ) embryos demonstrated a clear decrease in expression of the genes Grb10 and Rgs4, in and adjacent to the rostral and dorsal mdDA neuronal field and within the Lmx1a expression domain. Interestingly, the DA marker Vmat2 was significantly up-regulated as a consequence of increased LMX1A dose, and subsequent analysis on Lmx1a mutant E14.5 and adult tissue revealed a significant decrease in Vmat2 expression in mdDA neurons. Taken together, microarray analysis of an LMX1A overexpression cell system resulted in the identification of novel downstream targets of Lmx1A in mdDA neurons: Grb10, Rgs4 and Vmat2. RNA was isolated from MN9D cells. Each experimental sample consisted of a RNA pool derived from 3 separate 10-cm dishes containing Lmx1a overexpressing MN9D cells (transfected with pcDNA3.1(-)-Lmx1a). microarray analysis was performed in triplicate, each experimental sample was hybridized to the same reference pool of RNA derived from 9 10-cm dishes containing control MN9D cells (transfected with empty pcDNA3.1(-)). On each of three microarray samples, dye swap was performed to correct for dye effects.

2013-01-08 | E-GEOD-39174 | 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