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E-MEXP-847
Homo sapiens
14 Downloadable Samples
Affymetrix Human Genome U133A Array (hgu133a)
Description
We analyzed mRNAs in transiliacal bone biopsies from 7 patients with primary hyperparathyroidism using Affymetrix HG-U133A Gene Chips Similar analyses of the global transcriptional activity were repeated in a second bone biopsy from the same patient taken one year after surgery and reversal of disease parameters.
Publication Title
Abnormal muscle and hematopoietic gene expression may be important for clinical morbidity in primary hyperparathyroidism.
Sample Metadata Fields
Sex, Age, Specimen part, Disease, Subject
View Samples- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Gene 2.0 ST Array (hugene20st)
Description
Proliferative cells isolated from the adult human peripheral retina only transiently upregulate key retinal markers upon induced differentiation.
Publication Title
Proliferative Cells Isolated from the Adult Human Peripheral Retina only Transiently Upregulate Key Retinal Markers upon Induced Differentiation.
Sample Metadata Fields
Specimen part, Time
View Samples- Homo sapiens
- 6 Downloadable Samples
- Affymetrix Human Genome U133A Array (hgu133a)
Description
In order to assess whether culturing adipose-derived adult stem cells (ADASCs) affect their gene expression (see Sample Growth Condition Protocol), we wanted to identify possible genes that were differentially expressed between cultured polyclonal CD31- ADASCs and freshly isolated (uncultured) polyclonal CD31- ADASCs. To that end, RNA was isolated from cultured and uncultured ADASCs from three different donors and analyzed using the Affymetrix Microarray HG-U133A. Then, using the Affymetrix program MAS 5.0 we performed three comparisons and could identify differentially expressed transcripts common between the three donors, using the Affymetrix program DMT 3.0.
Publication Title
Isolation and transcription profiling of purified uncultured human stromal stem cells: alteration of gene expression after in vitro cell culture.
Sample Metadata Fields
Sex, Age, Specimen part, Disease, Disease stage, Cell line, Subject
View Samples- Arabidopsis thaliana
- 12 Downloadable Samples
Illumina HiSeq 4000
Description
We developed a R-based script to select internal control genes based solely on read counts and gene sizes. We used this method to pick custom reference genes for the differential expression analysis of three transcriptome sets from transgenic Arabidopsis plants expressing heterologous fungal effector proteins tagged with GFP (using GFP alone as the control). The custom reference genes showed lower covariance and fold change as well as a broader range of expression levels than commonly used reference genes. When analyzed with NormFinder, both typical and custom reference genes were considered suitable internal controls, but the custom selected genes were more stable. geNorm produced a similar result in which most custom selected genes ranked higher (i.e. were more stable) than commonly used reference genes.
Publication Title
No associated publication
Sample Metadata Fields
Age, Specimen part
View Samples- Mus musculus
- 115 Downloadable Samples
- Illumina HiSeq 2500
Description
The study aims to determine the set of transcriptional cell types that make up the mouse brain
Publication Title
Molecular Architecture of the Mouse Nervous System.
Sample Metadata Fields
Sex, Specimen part, Cell line
View Samples- Rattus norvegicus
- 2 Downloadable Samples
- Affymetrix Rat Genome 230 2.0 Array (rat2302)
Description
Two major subsets of rat natural killer (NK) cells can be distinguished based on their expression of either the Ly49s3 or the NKR-P1B lectin-like receptor. Ly49s3+ NK cells, but not NKR-P1B+ NK cells, express a wide range of Ly49 receptors.
Publication Title
Two complementary rat NK cell subsets, Ly49s3+ and NKR-P1B+, differ in phenotypic characteristics and responsiveness to cytokines.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 166 Downloadable Samples
- Illumina HumanWG-6 v3.0 expression beadchip
Description
We have previously identified a prognostic 31-gene expression signature in locally advanced cervical cancer that is associated with tumor hypoxia and reflected by the dynamic contrast enhanced magnetic resonance (DCE-MR) image parameter ABrix. To bring the signature closer to clinical use, we here aimed to construct a classifier with key signature genes that retained an association to ABrix and separated the patients into groups with different hypoxia status and chemoradiotherapy outcome.
Publication Title
Integrative Analysis of DCE-MRI and Gene Expression Profiles in Construction of a Gene Classifier for Assessment of Hypoxia-Related Risk of Chemoradiotherapy Failure in Cervical Cancer.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Homo sapiens
- 166 Downloadable Samples
Illumina HumanWG-6 v3.0 expression beadchip
Description
The present work aimed to identify reference genes for RT-qPCR studies of hypoxia in cervical cancer. From 422 candidate reference genes selected from the literature, we used Illumina array-based expression profiles to identify 182 genes not affected by hypoxia treatment in eight cervical cancer cell lines or correlated with the hypoxia-associated dynamic contrast-enhanced magnetic resonance imaging parameter ABrix in 42 patients. Among these genes, we selected nine candidates (CHCHD1, GNB2L1, IPO8, LASP1, RPL27A, RPS12, SOD1, SRSF9, TMBIM6) that were not associated with tumor volume, stage, lymph node involvement or disease progression in array data of 150 patients, for further testing by RT-qPCR. geNorm and NormFinder analyses of RT-qPCR data of 74 patients identified CHCHD1, SRSF9 and TMBIM6 as the most suitable set of reference genes, with stable expression both overall and across patient subgroups with different hypoxia status (ABrix) and clinical parameters. The suitability of the three candidates as reference genes were validated in studies of the hypoxia-induced genes DDIT3, ERO1A, and STC2. After normalizing with CHCHD1, SRSF9 and TMBIM6, the RT-qPCR data of these genes showed a significant correlation with Illumina expression (P<0.001, n=74) and ABrix (P<0.05, n=32), and the STC2 data were associated with clinical outcome, in accordance with the Illumina data. Thus, CHCHD1, SRSF9 and TMBIM6 seem to be suitable reference genes for studying hypoxia-related gene expression in cervical cancer samples by RT-qPCR. STC2 might be a useful prognostic hypoxia biomarker in cervical cancer that warrants further investigation.
Publication Title
Identification and Validation of Reference Genes for RT-qPCR Studies of Hypoxia in Squamous Cervical Cancer Patients.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Homo sapiens
- 151 Downloadable Samples
- Illumina HumanWG-6 v3.0 expression beadchip
Description
We performed integrative gene dosage and expression profiling to identify candidate target genes of the prognostic 3p loss in cervical cancer.
Publication Title
Identification of eight candidate target genes of the recurrent 3p12-p14 loss in cervical cancer by integrative genomic profiling.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Homo sapiens
- 158 Downloadable Samples
- Illumina HumanWG-6 v3.0 expression beadchip
Description
We explored the prognostic impact of the dynamic contrast enhanced MR imaging (DCE-MRI) parameter ABrix in cervical cancer combined with global gene expression data to reveal the underlying molecular phenotype of the parameter and construct a gene signature that reflected ABrix. Based on 78 cervical cancer patients subjected to curative chemoradiotherapy, we identified a prognostic ABrix parameter by pharmacokinetic analysis of DCE-MR images based on the Brix model, where tumors with low ABrix appeared to be most aggressive. Gene set enrichment analysis of 46 tumors with pairwise DCE-MRI and gene expression data showed a significant correlation between ABrix and the hypoxia gene sets, whereas gene sets related to proliferation, radioresistance, and wound healing were not significant. Hypoxia gene sets specific for cervical cancer created in cell culture experiments, including targets of the hypoxia inducible factor (HIF1) and the unfolded protein response (UPR), were the most significant. In the remaining 32 tumors, low ABrix was associated with upregulation of HIF1 protein expression, as assessed by immunohistochemistry, consistent with increased hypoxia. Based on the hypoxia gene sets, a signature of 31 genes that were upregulated in tumors with low ABrix was constructed. This DCE-MRI hypoxia gene signature showed prognostic impact in an independent validation cohort of 109 patients.
Publication Title
Hypoxia-induced gene expression in chemoradioresistant cervical cancer revealed by dynamic contrast-enhanced MRI.
Sample Metadata Fields
Specimen part, Cell line, Treatment
View Samples