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accession-icon GSE48104
DREAM silencing is part of a neuroprotective mechanism in Huntington's disease
  • organism-icon Mus musculus
  • sample-icon 16 Downloadable Samples
  • Technology Badge Icon Affymetrix Mouse Genome 430 2.0 Array (mouse4302)

Description

Deregulated intracellular Ca2+ homeostasis underlies synaptic dysfunction and is a common feature in neurodegenerative processes, including Huntington's disease (HD). DREAM/calsenilin/KChIP-3 is a multifunctional Ca2+ binding protein that controls the expression level and/or the activity of several proteins related to Ca2+ homeostasis, neuronal excitability and neuronal survival. We found that expression of endogenous DREAM (DRE antagonist modulator) is reduced in the striatum of R6 mice, in STHdh-Q111/111 knock in striatal neurons and in HD patients. DREAM down regulation in R6 striatum occurs early after birth, well before the onset of motor coordination impairment, and could be part of an endogenous mechanism of neuroprotection, since i) R6/2 mice hemizygous for the DREAM gene (R6/2xDREAM+/-) showed delayed onset of locomotor impairment and prolonged lifespan, ii) motor impairment after chronic administration of 3-NPA was reduced in DREAM knockout mice and enhanced in daDREAM transgenic mice and, iii) lentiviral-mediated DREAM expression in STHdh-Q111/111 knock in cells sensitizes them to oxidative stress. Transcriptomic analysis showed that changes in gene expression in R6/2 striatum were notably reduced in R6/2xDREAM+/- striatum. Chronic administration of repaglinide, a molecule able to bind to DREAM in vitro and to accelerate its clearance in vivo, delayed the onset of motor dysfunction, reduced striatal loss and prolonged the lifespan in R6/2 mice. Furthermore, exposure to repaglinide protected STHdh-Q111/111 knock in striatal neurons sensitized to oxidative stress by lentiviral-mediated DREAM overexpression. Thus, genetic and pharmacological evidences disclose a role for DREAM silencing in early neuroprotective mechanisms in HD.

Publication Title

Activating transcription factor 6 derepression mediates neuroprotection in Huntington disease.

Sample Metadata Fields

Specimen part

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accession-icon SRP078541
Whole blood RNA sequencing in idiopathic pneumonia syndrome reveals a unique transcriptomic profile compared to ARDS
  • organism-icon Homo sapiens
  • sample-icon 22 Downloadable Samples
  • Technology Badge IconIllumina HiSeq 2500

Description

The acute respiratory distress syndrome (ARDS) is a highly lethal syndrome characterized by hypoxemia and bilateral lung infiltrates in response to an inciting event such as sepsis. Allogeneic bone marrow transplantation (BMT) is a life-saving treatment for patients with hematologic malignancies that can be complicated by ARDS. We sought to identify blood gene expression signatures that distinguish whether ARDS in BMT may be a distinct pathobiologic entity from ARDS in non-BMT patients. RNA-Seq was used to measure whole blood transcript expression differences between 26 patients meeting the Berlin definition of ARDS: 8 patients without BMT and 5 BMT patients with ARDS from the Brigham and Women's Registry of Critical Illness (RoCI), as well as 7 non-BMT patients with sepsis and 6 BMT patients with sepsis. RNA was globin cleared using the Ambion GLOBINclear kit prior to preparation of poly(A)-selected RNA-Seq libraries with the Illumina TruSeq method. An Illumina HiSeq 2500 instrument was used to generate 75 base pair paired-end reads, which were aligned to the hg38 reference genome using STAR. Differential expression analysis was performed using DESeq2. Overall design: mRNA profiles obtained via RNA-Seq for whole blood samples from ARDS patients with and without BMT

Publication Title

Whole blood RNA sequencing reveals a unique transcriptomic profile in patients with ARDS following hematopoietic stem cell transplantation.

Sample Metadata Fields

Specimen part, Disease, Subject

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accession-icon GSE17844
Basal expression in daDREAM transgenic mouse hippocampus
  • organism-icon Mus musculus
  • sample-icon 6 Downloadable Samples
  • Technology Badge Icon Affymetrix Mouse Genome 430 2.0 Array (mouse4302)

Description

Changes in nuclear Ca2+ homeostasis activate specific gene expression programs and are central to the acquisition and the plastic storage of memories. DREAM /KChIP proteins form heterotetramers that bind DNA and repress transcription in a Ca2+-dependent manner. Single ablation of one member of the DREAM/KChIP family may result in a mild or the absence of phenotype due to partial gene compensation. To study the function of DREAM/KChIP proteins in the brain, we used transgenic mice expressing a Ca2+-insensitive/CREB-independent dominant active mutant DREAM (daDREAM). We show that daDREAM controls the expression of several activity-dependent transcription factors including Npas4, Nr4a1, Mef2C, JunB and c-Fos, as well as the chromatin modifying enzyme Mbd4 and proteins related to actin polymerization like Arc and gelsolin. Thus, directly or through these targets, expression of daDREAM in the forebrain resulted in a complex phenotype characterized by i) impaired learning and memory, ii) loss of recurrent inhibition and enhanced LTP in the dentate gyrus without affecting Kv4-mediated potassium currents, and iii) modified spine density in DG granule neurons. Our results propose DREAM as a master-switch transcription factor regulating several activity-dependent gene expression programs to control synaptic plasticity, learning and memory.

Publication Title

DREAM controls the on/off switch of specific activity-dependent transcription pathways.

Sample Metadata Fields

Specimen part

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accession-icon GSE38021
Expression profiling by array in ATLL
  • organism-icon Homo sapiens
  • sample-icon 2 Downloadable Samples
  • Technology Badge Icon Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)

Description

Previously, we have shown that an AP-1 family member Fra-2, which is hardly expressed in normal mature T cells, is consistently over-expressed in adult T-cell leukemia/lymphoma (ATLL), and together with JunD, upregulates CCR4 and many other genes including proto-oncogenes c-Myb, MDM2, Bcl-6, and SOX4. SOX4 is frequently overexpressed in many solid tumors and considered to be a potential oncogene.

Publication Title

SOX4 is a direct target gene of FRA-2 and induces expression of HDAC8 in adult T-cell leukemia/lymphoma.

Sample Metadata Fields

Cell line

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accession-icon GSE63626
Global gene expression analysis of human fibroblasts from whole body
  • organism-icon Homo sapiens
  • sample-icon 59 Downloadable Samples
  • Technology Badge Icon Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)

Description

Fibroblasts are the principal stromal cells that exist in whole organs and play vital roles in many biological processes. Although the functional diversity of fibroblasts has been estimated, a comprehensive analysis of fibroblasts from the whole body has not been performed and their phenotypical diversity has not been sufficiently explored. The aim of this study was to elucidate the phenotypical diversity of human fibroblasts within the whole body.

Publication Title

Gastrointestinal Fibroblasts Have Specialized, Diverse Transcriptional Phenotypes: A Comprehensive Gene Expression Analysis of Human Fibroblasts.

Sample Metadata Fields

Sex, Age, Specimen part

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accession-icon GSE10365
Expression Data from NKDxIL15tg and IL15 tg NK cells
  • organism-icon Mus musculus
  • sample-icon 9 Downloadable Samples
  • Technology Badge Icon Affymetrix Mouse Genome 430 2.0 Array (mouse4302)

Description

NK cells from NKDxIL15tg mice spleens and bone marrow were purified by FACS. NK cells from IL15tg mice spleens were purified by FACS.

Publication Title

Distal-less homeobox transcription factors regulate development and maturation of natural killer cells.

Sample Metadata Fields

No sample metadata fields

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accession-icon GSE53059
Human Subperitoneal Fibroblasts and Cancer Cell Interaction Creates Microenvironment Enhancing Tumor Progression and Metastasis
  • organism-icon Homo sapiens
  • sample-icon 12 Downloadable Samples
  • Technology Badge Icon Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)

Description

Fibroblasts isolated from human colon submucosal and subperitoneal layer were stimulated by colon cancer cell line (DLD-1) cultured medium. Peritoneal invasion in colon cancer is an important prognostic factor, and the fibrosis with -SMA was a significant pathological feature of the cancer microenvironment formed by peritoneal invasion (CMPI).

Publication Title

Human subperitoneal fibroblast and cancer cell interaction creates microenvironment that enhances tumor progression and metastasis.

Sample Metadata Fields

Sex, Age, Specimen part

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accession-icon SRP043666
RNA Sequencing Quantitative Analysis and identification of RNA editing sites of Wild Type and ADAR1 editing deficient (ADAR1E861A) murine fetal liver RNA
  • organism-icon Mus musculus
  • sample-icon 6 Downloadable Samples
  • Technology Badge IconIllumina HiSeq 2000

Description

Purpose: RNA editing by ADAR1 is essential for hematopoietic development. The goals of this study were firstly, to identify ADAR1-specific RNA-editing sites by indentifying A-to-I (G) mismatches in RNA-seq data compared to mm9 reference genome in wild type mice that were not edited or reduced in editing frequency in ADAR1E861A editing deficient mice. Secondly, to determine the transcriptional consequence of an absence of ADAR1-mediated A-to-I editing. Methods: Fetal liver mRNA profiles of embryonic day 12.5 wild-type (WT) and ADAR1 editing-deficient (ADAR1E861A) mice were generated by RNA sequencing, in triplicate (biological replicates), using Illumina HiSeq2000. The sequence reads that passed quality filters were analyzed at the transcript level with TopHat followed by Cufflinks. qRT–PCR validation was performed using SYBR Green assays. A-to-I (G) RNA editing sites were identified as previously described by Ramaswami G. et al., Nature Methods, 2012 using Burrows–Wheeler Aligner (BWA) followed by ANOVA (ANOVA). RNA editing sites were confirmed by Sanger sequencing. Results: Using an optimized data analysis workflow, we mapped about 30 million sequence reads per sample to the mouse genome (build mm9) and identified 14,484 transcripts in the fetal livers of WT and ADAR1E861A mice with BWA. RNA-seq data had a goodness of fit (R2) of >0.94 between biological triplicates per genotype. Approximately 4.4% of the transcripts showed differential expression between the WT and ADAR1E861A fetal liver, with a LogFC=1.5 and p value <0.05. A profound upregulation of interferon stimulated genes were found to be massively upregulated (up to 11 logFC) in ADAR1E861A fetal liver compared to WT. 6,012 A-to-I RNA editing sites were identified when assessing mismatches in RNA-seq data of WT and ADAR1E861A fetal liver. Conclusions: Our study represents the first detailed analysis of fetal liver transcriptomes and A-to-I RNA editing sites, with biologic replicates, generated by RNA-seq technology. A-to-I RNA editing is the essential function of ADAR1 and is required to suppress interferon signaling to endogenous RNA. Overall design: Fetal liver mRNA profiles of E12.5 wild type (WT) and ADAR E861A mutant mice were generated by deep sequencing, in triplicate, using Illumina HiSeq 200.

Publication Title

RNA editing by ADAR1 prevents MDA5 sensing of endogenous dsRNA as nonself.

Sample Metadata Fields

No sample metadata fields

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accession-icon GSE78501
Gene expression profiling of genes differentially expressed by oral carcinoma Ca9-22 and SLPI-deficient Ca9-22 (SLPI) cells
  • organism-icon Homo sapiens
  • sample-icon 2 Downloadable Samples
  • Technology Badge Icon Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)

Description

We used the myoma model in conjunction with gene expression profiling with microarray data as an efficient tool for high throughput analysis and to screen for differentially expressed genes. Our aim was to identify candidates playing an important role in SLPI and/or MMP-promoted tumor invasion by comparing oral carcinoma Ca9-22 cells, which highly express secretory leukocyte protease inhibitor (SLPI) gene, with SLPI-deficient Ca9-22 cells.

Publication Title

Human uterus myoma and gene expression profiling: A novel in vitro model for studying secretory leukocyte protease inhibitor-mediated tumor invasion.

Sample Metadata Fields

Cell line

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accession-icon GSE67591
Whole genome expression microarray analysis in quadriceps of wild-type and NF90-NF45 double transgenic mouse
  • organism-icon Mus musculus
  • sample-icon 4 Downloadable Samples
  • Technology Badge Icon Affymetrix Mouse Gene 2.1 ST Array (mogene21st)

Description

The complex of NF90 and NF45 is known to participate in transcriptional regulation, mRNA stabilization and microRNA biogenesis in vitro. However, the physiological function of the NF90-NF45 complex is still unclear. To elucidate its functions, we generated NF90-NF45 double transgenic (dbTg) mice. Robust expression of NF90 and NF45 was detected in skeletal muscle. As mentioned above, NF90-NF45 complex is involved in regulation of genes via transcription and RNA metabolism. To identify genes regulated by NF90-NF45, we performed comprehensive analyses of mRNA expression in quadriceps of wild-type (WT) and NF90-NF45 dbTg mice.

Publication Title

Overexpression of NF90-NF45 Represses Myogenic MicroRNA Biogenesis, Resulting in Development of Skeletal Muscle Atrophy and Centronuclear Muscle Fibers.

Sample Metadata Fields

Sex, Age, Specimen part

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Cite refine.bio

Casey S. Greene, Dongbo Hu, Richard W. W. Jones, Stephanie Liu, David S. Mejia, Rob Patro, Stephen R. Piccolo, Ariel Rodriguez Romero, Hirak Sarkar, Candace L. Savonen, Jaclyn N. Taroni, William E. Vauclain, Deepashree Venkatesh Prasad, Kurt G. Wheeler. refine.bio: a resource of uniformly processed publicly available gene expression datasets.
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Note that the contributor list is in alphabetical order as we prepare a manuscript for submission.

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