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Danio rerio
16 Downloadable Samples
IlluminaGenomeAnalyzerIIx
Description
Zebrafish is a model system being used in a variety of basic research and biomedical studies. Understanding the neurotranscriptomic architecture will greatly facilitate and enhance interpretation of research projects. Studies have reported that there are strain and sex-specific behavioral variation particulary in response to stress and anxiety-inducing scenarios. Capitalizing on previously documented behavioral variation by strains and sex of zebrafish, this study seeks to understand the neurotranscriptomic mechanisms potentially underlying this variation. Through RNA-sequencing (4 biological replicates per strain further subdivided into 2 biological replicates per sex) we analyzed the whole-brain transcriptomic profiles of four strains of zebrafish and relate transcriptional differences to phenotypic differences (e.g. behavioral or morphological) of the strains. Using a balanced block design, all 16 samples were multiplexed and run across 16 lanes on an Illumina GAIIx. Resulting reads (approximately 52 million reads per biological replicate) were aligned to the Zv9 genome build. We subsequently performed differential gene expression analysis and weighted gene coexpression network analysis to identify genes and gene networks associated with a phenotype. The goal of the study is to identify neurotranscriptomic mechanisms underlying phenotypic (e.g. morphological, behavioral) variation in zebrafish. Overall design: Through RNA-sequencing we quantified whole-brain transcriptome levels of protein-coding genes for four strains of zebrafish (AB, Scientific Hatcheries, High Stationary Behavior, and Low Stationary Behavior). Each line has 4 biological replicates (2 biological replicates for each sex). Each biological replicate is comprised of a pool of 10 same-sex and age-matched individuals. Using a balanced block design, the samples were mulitplexed and run across 16 lanes on an Illumina GAIIx. Reads that passed default quality control filters were aligned using GSNAP and quantified with HTSEQ. We used edgeR and WGCNA for subsequent differential gene expression and network analyses. qRT–PCR validation was performed using SYBR Green assays
Publication Title
Neurotranscriptome profiles of multiple zebrafish strains.
Sample Metadata Fields
No sample metadata fields
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SRP058107- Homo sapiens
- 12 Downloadable Samples
- IlluminaHiSeq2500
Description
RNA sequencing of tumor transcriptomes
Publication Title
Robust gene expression and mutation analyses of RNA-sequencing of formalin-fixed diagnostic tumor samples.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 75 Downloadable Samples
- Illumina HiSeq 2500
Description
In the developing embryo, haematopoietic stem cells (HSCs) emerge from the aorta-gonad-mesonephros (AGM) region but the molecular regulation of this process is poorly understood. Recently, the progression from E9.5 to E10.5 and polarity along the dorso-ventral axis have been identified as clear demarcations of the supportive HSC niche. To identify novel secreted regulators of HSC maturation, we performed RNA-sequencing over these spatio-temporal transitions in the AGM region, and supportive OP9 cell line. Overall design: RNA-sequencing profiles of the aorta-gonad-mesonephros region from E9.5 embryos and E10.5 embryos sub-dissected into dorsal (AoD), ventral (AoV) and urogenital ridges (UGR) and pooled from between 15 and 34 embryos in three separate experiments.
Publication Title
A molecular roadmap of the AGM region reveals BMPER as a novel regulator of HSC maturation.
Sample Metadata Fields
Specimen part, Subject
View Samples- Mus musculus
- 20 Downloadable Samples
- Illumina HiSeq 2500
Description
In the developing embryo, haematopoietic stem cells (HSCs) emerge from the aorta-gonad-mesonephros (AGM) region but the molecular regulation of this process is poorly understood. Recently, the progression from E9.5 to E10.5 and polarity along the dorso-ventral axis have been identified as clear demarcations of the supportive HSC niche. To identify novel secreted regulators of HSC maturation, we performed RNA-sequencing over these spatio-temporal transitions in the AGM region, and supportive OP9 cell line. Overall design: RNA-sequencing profiles of OP9 cells grown in flat, submersed culture or reaggregate and cultured at the liquid-gas interface were compared.
Publication Title
A molecular roadmap of the AGM region reveals BMPER as a novel regulator of HSC maturation.
Sample Metadata Fields
Specimen part, Cell line, Subject
View Samples- Homo sapiens
- 4 Downloadable Samples
- IlluminaHiSeq2000
Description
Background: E-cadherin is an adherens junction protein that forms homophilic intercellular contacts in epithelial cells while also interacting with the intracellular cytoskeletal networks. It has roles including establishment and maintenance of cell polarity, differentiation, migration and signalling in cell proliferation pathways. Its downregulation is commonly observed in epithelial tumours and is a hallmark of the epithelial to mesenchymal transition (EMT). Methods: To improve our understanding of how E-cadherin loss contributes to tumorigenicity, we investigated the impact of its elimination from the non-tumorigenic breast cell line MCF10A. We performed cell-based assays and whole genome RNAseq to characterize an isogenic MCF10A cell line that is devoid of CDH1 expression due to an engineered homozygous 4bp deletion in CDH1 exon 11. Results: The E-cadherin-deficient line, MCF10A CDH1-/- showed subtle morphological changes, weaker cell-substrate adhesion, delayed migration, but retained cell-cell contact, contact growth inhibition and anchorage-dependent growth. Within the cytoskeleton, the apical microtubule network in the CDH1-deficient cells lacked the radial pattern of organization present in the MCF10A cells and F-actin formed thicker, more numerous stress fibres in the basal part of the cell. Whole genome RNAseq identified compensatory changes in the genes involved in cell-cell adhesion while genes involved in cell-substrate adhesion, notably ITGA1, COL8A1, COL4A2 and COL12A1, were significantly downregulated. Key EMT markers including CDH2, FN1, VIM and VTN were not upregulated although increased expression of proteolytic matrix metalloprotease and kallikrein genes was observed. Conclusions: Overall, our results demonstrated that E-cadherin loss alone was insufficient to induce an EMT or enhance transforming potential in the non-tumorigenic MCF10A cells but was associated with broad transcriptional changes associated with tissue remodelling. Overall design: Examination of the impact of E-cadherin (CDH1) loss in an isogenic pair of breast cell lines.
Publication Title
E-cadherin loss alters cytoskeletal organization and adhesion in non-malignant breast cells but is insufficient to induce an epithelial-mesenchymal transition.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 18 Downloadable Samples
Affymetrix Human Exon 1.0 ST Array [transcript (gene) version (huex10st)
Description
The Hypoxia-Inducible Factors induce the expression of the histone demethylases JMJD1A (KDM3A) and JMJD2B (KDM4B), linking the hypoxic tumor microenvironment to epigenetic mechanisms that may foster tumor progression. Using transcript profiling, we have identified genes that are regulated by JMJD1A and JMJD2B in both normoxic and hypoxic conditions in SKOV3ip.1 ovarian cancer cells.
Publication Title
The histone demethylase KDM4B regulates peritoneal seeding of ovarian cancer.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Mus musculus
- 36 Downloadable Samples
- NextSeq 550, Illumina HiSeq 2000
Description
In this study we investigate the role of the non-canonical SMC family protein, SmcHD1in the X inactivation. Overall design: Set of allele-specific chromatin RNA-seq experiments on female clonal inter-specific (M.m.domesticus FVB x M.m.Castaneus) MEF cell lines: wild-type MEFs, SmcHD1 MomeD1 mut MEFs (SmcHD1 null) and SmcHD1 CRISPR KO MEFs (derived from wild-type MEFs after establishemnt of X inactivation).
Publication Title
The non-canonical SMC protein SmcHD1 antagonises TAD formation and compartmentalisation on the inactive X chromosome.
Sample Metadata Fields
Subject
View Samples- Mus musculus
- 8 Downloadable Samples
- Illumina mouse-6 v1.1 expression beadchips
Description
Human clinical trials in type 1 diabetes (T1D) patients are underway using mesenchymal stem cells (MSC) without prior validation in a mouse model for the disease. In response to this void, we characterized bone marrow-derived murine MSC for their ability to modulate immune responses in the context of T1D, as represented in non-obese diabetic (NOD) mice. In comparison to NOD-, BALB/c-MSC express higher levels of the negative costimulatory molecule PD-L1 and promote a shift toward Th2-like responses in treated NOD mice. In addition, transfer of MSC from resistant strains (i.e. NOR or BALB/c), but not from NOD mice, conferred disease protection when administered to prediabetic NOD mice. The number of BALB/c-MSC trafficking to the pancreatic lymph nodes of NOD mice was higher than in NOD mice provided autologous NOD-MSC. Administration of BALB/c-MSC resulted in reversal of hyperglycemia in 90% of NOD mice (p=0.002). Transfer of autologous NOD-MSC imparted no such therapeutic benefit, and in fact soft tissue and visceral tumors were uniquely observed in this setting (i.e. no tumors were present with BALB/c- or NOR-MSC transfer). These data provide important preclinical data supporting the basis for further development of allogeneic MSC-based therapies for T1D and potentially, other autoimmune disorders.
Publication Title
Immunomodulatory function of bone marrow-derived mesenchymal stem cells in experimental autoimmune type 1 diabetes.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 80 Downloadable Samples
- Affymetrix Human Genome U133A 2.0 Array (hgu133a2)
Description
Patients with metastatic colorectal cancer were enrolled for treatment with cetuximab monotherapy. Transcriptional profiling was conducted on RNA from pre-treatment metastatic site biopsies to identify genes whose expression correlates with best clinical responses.
Publication Title
Expression of epiregulin and amphiregulin and K-ras mutation status predict disease control in metastatic colorectal cancer patients treated with cetuximab.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 35 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Early genetic changes during cancer initiation may provide targets for agents that delay, or even prevent, cancer. We hypothesized that cells bearing a single inherited hit in a tumor suppressor gene express an altered mRNA repertoire that may identify targets for measures that could delay or even prevent progression to carcinoma. Here, we report on the transcriptomes of primary breast and ovarian epithelial cells cultured from BRCA1 and BRCA2 mutation-carriers and controls. Our comparison analyses identified multiple changes in gene expression, in both tissues for both mutations that were independently validated by real-time RT-PCR analysis. Several of the differentially expressed genes had been previously proposed as cancer markers including, mammaglobin in breast cancer and serum amyloid in ovarian cancer. These findings demonstrate that heterozygosity for a mutant tumor suppressor gene can alter the expression profiles of phenotypically normal epithelial cells in a gene-specific manner, and that these detectable effects of one-hit represent early molecular changes in tumorigenesis that may serve as novel biomarkers of cancer risk and as targets for chemoprevention
Publication Title
Altered gene expression in morphologically normal epithelial cells from heterozygous carriers of BRCA1 or BRCA2 mutations.
Sample Metadata Fields
Specimen part
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