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GSE55187
Drosophila melanogaster
14 Downloadable Samples
Affymetrix Drosophila Genome 2.0 Array (drosophila2)
Description
Study of gene expression patterns of Drosophila melanogaster Sesb1 mutants compared to wild type
Publication Title
Phenotypic rescue of a Drosophila model of mitochondrial ANT1 disease.
Sample Metadata Fields
Sex
View Samples- Homo sapiens
- 6 Downloadable Samples
IlluminaGenomeAnalyzerIIx
Description
We performed the integrative transcriptome analysis of human esophageal squamous cell carcinoma (ESCC) using Illumina high-throughput sequencing. A total of 187 million 38bp sequencing reads were generated containing 7 billion bases for three pairs of matched patient-derived ESCC clinical specimens and their adjacent non-tumorous tissues. By investigating the digital gene expression profiling, we found 1425 genes significantly differentially expressed and detected more than 9000 SNPs across all six samples. We also identified protein tyrosine kinase 6 (PTK6) as a novel tumor suppressor gene, which is critical in ESCC development. Overall design: Analysis of whole transcriptome from 3 paired patient-derived ESCC clinical specimens and their adjacent non-tumorous tissues.
Publication Title
Transcriptome profiling of esophageal squamous cell carcinoma reveals a long noncoding RNA acting as a tumor suppressor.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 6 Downloadable Samples
- Illumina HiSeq 2000
Description
Mouse skin fibroblasts (MSFs) were obtained from a FASST (Fibroblasts Accelerate Stromal-Supported Tumorigenesis) mouse. This mouse model allows for spatial and temporal control for senescence induction by using a stromal specific Cre-recombinase driven by the pro-collagen-alpha II promoter. The stromal specific Cre activates expression of the p27IRESGFP transgene that is expressed from the ROSA locus. We cultured the MSFs in vitro, induced senescence using 10uM tamoxifen added to the media. Non-senescent cells were treated with equal volume of vehicle alone (ethanol). Upon tamoxifen treatment, cells were moved to a modular incubation chamber and maintained at 3% oxygen at 37 degrees celcius for 12 days total before collection. At the time of collection, cells were trypsynized and pelleted by centrifugation. The cells were lysed using Trysol reagent and RNA was isolated using a RiboPure RNA isolation kit (Ambion). Overall design: For this study, 2 treatment groups were analyzed (non-senescent, EtOH samples and senescent, TAM samples). Each treatment group was performed 3 times for a total of 6 samples for analysis. The gene expression analysis is a comparison of expression in senescent (TAM) vs non-senescent (EtOH) mouse skin fibroblasts.
Publication Title
Stromal senescence establishes an immunosuppressive microenvironment that drives tumorigenesis.
Sample Metadata Fields
Specimen part, Cell line, Treatment, Subject
View Samples- Mus musculus
- 6 Downloadable Samples
- Affymetrix Mouse Expression 430A Array (moe430a)
Description
To identify potential target genes regulated by BMP9 in MSCs, we used microarray to profile expression patterns of BMP9- vs. GFP-stimulated MSCs.
Publication Title
Hey1 basic helix-loop-helix protein plays an important role in mediating BMP9-induced osteogenic differentiation of mesenchymal progenitor cells.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Mus musculus
- 17 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
TGFbi (transforming growth factor-beta-induced) is a secreted protein and is capable of binding to both extracellular matrix (ECM) and cells. It thus acts as a bifunctional molecule enhancing ECM and cell interactions, a lack of which results in dysfunction of many cell types. In this study, we investigated the role of TGFbi in the function and survival of islets. Based on DNA microarray analysis followed by qPCR confirmation, the TGFbi gene showed drastic increases in expression in islets after culture. We demonstrated that recombinant TGFbi could preserve the integrity and enhance the function of cultured islets. Such a beneficial effect was mediated via signalling through FAK. Exogenous TGFbi was capable of sustaining high-level FAK phosphorylation in isolated islets, and FAK knockdown by siRNA in islets resulted in compromised islet function. TGFbi Tg islets showed better integrity and insulin release after in vitro culture. In vivo, b-cell proliferation was detectable in Tg but not wild type pancreata. At age above 12 months, Tg pancreata contained giant islets. Tg mice displayed better glucose tolerance than the controls. Tg islets were more potent in lowering blood glucose when transplanted into syngeneic mice with streptozotocin-induced diabetes, and these transplanted islets also underwent regeneration. Our results indicate that TGFbi is a vital trophic factor promoting islet survival, function and regeneration. At least some of its beneficial effect was mediated by signalling through FAK.
Publication Title
TGF-beta i promotes islet beta-cell function and regeneration.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 9 Downloadable Samples
- Illumina HiSeq 4000
Description
We identified a rare coding variant (p.K420Q) in the complement component 7 (C7) gene affecting the risk of Alzheimer's disease. To investigate the cellular effects of the mutant, we performed RNA-seq in cell line overexpression wilt-type and mutant C7. U251 glioma cells with stable expression of mutant APP (K670N/M671L) (U251-APP cells), which produce Aß42 under Dox inducing, were used as the model cell. Total RNA of U251-APP cells overexpressing wild type and mutant C7 proteins were subjected to transcriptome sequencing using Illumina Hiseq 4000 platform. Overall design: C7 overexpression was performed in U251 cell with a stably expression of mutant APP (U251-APP cells) with three biological triplicates for each condition (vector, wild-type, and mutant).
Publication Title
<i>Complement C7</i> is a novel risk gene for Alzheimer's disease in Han Chinese.
Sample Metadata Fields
Cell line, Subject
View Samples- Sus scrofa
- 2 Downloadable Samples
- Illumina HiSeq 2000
Description
Backgroud:Epigenetic modifications (especially altered DNA methylation) resulting in altered gene expression may be one reason for development failure or the abnormality of the cloned animals, but the underlying mechanism of the abnormal phenotype in the cloned piglets remains unrevealed. Some cloned piglets in our study showed abnormal phenotypes such as big tongue (longer and thicker), limp, and exomphalos, which is similar to the human BWS syndrome. Here we conducted DNA methylation (DNAm) immunoprecipitation binding high throughput sequencing (MeDIP-seq) and RNA sequencing (RNA-seq) of muscle tissues of cloned piglets to investigate the relationship of abnormal DNAm with gene dysregulation and the unusual phenotypes in cloned piglets. Results:Analysis of the methylomes revealed that abnormal cloned piglets suffered more hypomethylated differentially methylated regions (DMRs) than hypermethylated DMRs compared to the normal cloned piglets. The DNAm level in the CpG Island was higher in the abnormal cloned piglets. Some repetitive elements, such as SINE/tRNA-Glu Satellite/centr also showed significant differences. Besides we detected 1,711 differentially expressed genes (DEGs) between the two groups, of which 243 genes also changed methylation level in the abnormal cloned piglets. The altered DNA methylation mainly affected the low and silent expression genes. We also found some interesting pathways and genes, such as MAPK signalling pathway, hypertrophic cardiomyopathy pathway, TPM3 gene and the imprinted gene PLAGL1, which may played important roles in the abnormal phenotype development. Conclusions;The abnormal cloned piglets showed substantial change both in the DNAm and the gene expression levels. Our data may provide new insights into understanding the molecular mechanisms of the reprogramming of genetic information in cloned animals. Overall design: We dissected the biceps femoris muscle from the abnormal cloned piglets and the normal cloned piglets, and analyzed the difference of MeDIP-seq and RNA-seq between the two groups. This represents the RNA-Seq study only
Publication Title
Transcriptome analysis reveals long intergenic non-coding RNAs involved in skeletal muscle growth and development in pig.
Sample Metadata Fields
Specimen part, Subject
View Samples- Sus scrofa
- 1 Downloadable Sample
- Illumina HiSeq 2000
Description
Somatic cell nuclear transfer has brought considerable chances to breed excellent breeds and protect endanger animals, while also produced numerous fail embryos and abnormal individuals due to inefficient epigenetic modification at the same time. To understand some mechanisms of abnormal piglets with phenotypes such as macroglossia, standing and walking disabilities in our study and find some differences between abnormal piglets and conventionally bred normal piglets, DNA methylation profile and genome-wide gene expression were conducted in two groups, using methylated DNA immunoprecipitation binding highthroughput sequencing (MeDIP-Seq) and RNA sequencing(RNA-Seq). We generated and provided a genome-wide DNA methylation and gene expression profile for abnormal cloned and conventionally bred piglets. We detected a total of 1493 genes differentially expressed in two groups and 382 of these genes also differentially methylated in two groups. Analysis of relationship between DNA methylation and gene expression revealed that DNA methylation levels had significantly negative and monotonic correlation with gene expression levels in particular regions of genes while no obvious monotonic correlation in other regions. Besides, we found some interesting genes and pathways such as MYH7 and mTOR signalling pathway that may played essential role in muscle growth and development. Briefly, these results provide reliable data for future epigenetic studies and may help to uncover the mechanism of failure clones via SCNT. Overall design: We dissected the leg muscle from the cloned piglets and the conventionally bred piglets, and analyzed the difference of MeDIP-seq and RNA-seq between the two groups. As for data of abnormal cloned piglets, we downloaded it from GEO under Super-Series accession No. GSE51477, including SubSeries accession No.GSE51282 for RNA-seq data (No. GSM1241829 for abnormal cloned group) and SubSeries accession No. GSE51476 for MeDIP-seq data (No. GSM1246252 for abnormal cloned group).
Publication Title
Transcriptome analysis reveals long intergenic non-coding RNAs involved in skeletal muscle growth and development in pig.
Sample Metadata Fields
Specimen part, Subject
View Samples- Drosophila melanogaster
- 25 Downloadable Samples
- Affymetrix Drosophila Genome Array (drosgenome1)
Description
Genomic analysis of axon pruning in Drosophila mushroom body neurons identifies the RNA-binding protein Boule as a negative regulator
Publication Title
Genomic analysis of Drosophila neuronal remodeling: a role for the RNA-binding protein Boule as a negative regulator of axon pruning.
Sample Metadata Fields
Age
View Samples- Drosophila melanogaster
- 16 Downloadable Samples
- Affymetrix Drosophila Genome Array (drosgenome1)
Description
Drosophila mushroom body (MB) neurons undergo axon pruning during metamorphosis through a process of localized degeneration of specific axon branches. Developmental axon degeneration is initiated at the onset of metamorphosis by the pre-pupal rise in the steroid hormone ecdysone. This study identifies genes that alter their expression in MB neurons at the onset and early steps of axon pruning.
Publication Title
Genomic analysis of Drosophila neuronal remodeling: a role for the RNA-binding protein Boule as a negative regulator of axon pruning.
Sample Metadata Fields
Age
View Samples