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GSE32664
Homo sapiens
35 Downloadable Samples
Affymetrix Human Exon 1.0 ST Array [transcript (gene) version (huex10st)
Description
In this study, mRNA expression profiles of 113 primary untreated human neuroblastoma samples were compared with the aim to identify prognostic exon and gene sets as well as parameters associated with alternative exon use. The primary neuroblastoma specimens were from tumor banks in Cologne or Essen, Germany, Ghent, Belgium and Valencia, Spain. All patients were diagnosed between 1998 and 2007 and treated according to the German Neuroblastoma trials NB97, NB 2004 or the SIOPEN protocol.
Publication Title
Smac mimetic LBW242 sensitizes XIAP-overexpressing neuroblastoma cells for TNF-α-independent apoptosis.
Sample Metadata Fields
Specimen part, Treatment
View Samples- Homo sapiens
- 10 Downloadable Samples
- Affymetrix Human Genome U133A Array (hgu133a)
Description
The objective of this study was the assessment of transcriptional dysregulation in particular with regard to B-cell differentiation factors. Most studies focus on cross-section analyses of various leukemia subtypes to identify differentially regulated genes lacking suitable reference models. Here we applied comparative intraindividual transcriptome analysis of B-precursor ALL of childhood, which introduces a side-by-side analysis of leukemic cells and matched normal lymphoblasts from the same individual in complete continuous remission after the end of re-induction therapy. This approach reduces noise by eliminating interindividual variability.
Publication Title
Aberrant ZNF423 impedes B cell differentiation and is linked to adverse outcome of ETV6-RUNX1 negative B precursor acute lymphoblastic leukemia.
Sample Metadata Fields
Specimen part, Subject
View Samples- Mus musculus
- 2 Downloadable Samples
- Affymetrix Mouse Expression 430A Array (moe430a)
Description
Analysis of white adipose tissue of PPARb/d knockout mice. Data may point towards putative target genes of PPARb/d and thus the function of PPARb/d in white adipose tissue. Datasets were used to identify glycogen synthase 2 as novel PPAR target.
Publication Title
Glycogen synthase 2 is a novel target gene of peroxisome proliferator-activated receptors.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples- Homo sapiens
- 15 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
Analysis of cardiomyocytes cultivated in 2D or age-matched 3D (Engineered heart tissue, EHT) format.
Publication Title
Human Engineered Heart Tissue: Analysis of Contractile Force.
Sample Metadata Fields
Age, Specimen part
View Samples- Homo sapiens
- 58 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Clinical remission is apparent when laboratory markers of inflammation are normal and clinical symptoms are absent. However, sub-clinical inflammation can still be present. A detailed analysis of the immune status during this inactive state of disease may provide a useful tool to subcategorize patients with subclinical immune activation
Publication Title
Gene expression analysis of peripheral cells for subclassification of pediatric inflammatory bowel disease in remission.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 190 Downloadable Samples
- Affymetrix Human Genome U133A Array (hgu133a)
Description
Childhood acute lymphoblastic leukemia (ALL) comprises a large group of genetic subtypes with a favorable prognosis characterized by a TEL-AML1-fusion, hyperdiploidy (>50 chromosomes) or E2A-PBX1 fusion and a smaller group with unfavorable outcome characterized by either a BCR-ABL-fusion, MLL-rearrangement or T-ALL.
Publication Title
A subtype of childhood acute lymphoblastic leukaemia with poor treatment outcome: a genome-wide classification study.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 103 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Childhood acute lymphoblastic leukemia (ALL) comprises a large group of genetic subtypes with a favorable prognosis characterized by a TEL-AML1-fusion, hyperdiploidy (>50 chromosomes) or E2A-PBX1 fusion and a smaller group with unfavorable outcome characterized by either a BCR-ABL-fusion, MLL-rearrangement or T-ALL.
Publication Title
A subtype of childhood acute lymphoblastic leukaemia with poor treatment outcome: a genome-wide classification study.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 8 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
Uniparental parthenotes are considered an unwanted byproduct of in vitro fertilization. In utero parthenote development is severely compromised by defective organogenesis and in particular by defective cardiogenesis. Although developmentally compromised, apparently pluripotent stem cells can be derived from parthenogenetic blastocysts. Here we hypothesized that nonembryonic parthenogenetic stem cells (PSCs) can be directed toward the cardiac lineage and applied to tissue-engineered heart repair. We first confirmed similar fundamental properties in murine PSCs and embryonic stem cells (ESCs), despite notable differences in genetic (allelic variability) and epigenetic (differential imprinting) characteristics. Haploidentity of major histocompatibility complexes (MHCs) in PSCs is particularly attractive for allogeneic cell-based therapies. Accordingly, we confirmed acceptance of PSCs in MHC-matched allotransplantation. Cardiomyocyte derivation from PSCs and ESCs was equally effective. The use of cardiomyocyte-restricted GFP enabled cell sorting and documentation of advanced structural and functional maturation in vitro and in vivo. This included seamless electrical integration of PSC-derived cardiomyocytes into recipient myocardium. Finally, we enriched cardiomyocytes to facilitate engineering of force-generating myocardium and demonstrated the utility of this technique in enhancing regional myocardial function after myocardial infarction. Collectively, our data demonstrate pluripotency, with unrestricted cardiogenicity in PSCs, and introduce this unique cell type as an attractive source for tissue-engineered heart repair.
Publication Title
Parthenogenetic stem cells for tissue-engineered heart repair.
Sample Metadata Fields
Specimen part
View Samples- Bos taurus
- 29 Downloadable Samples
- Affymetrix Bovine Genome Array (bovine)
Description
Infections of the udder by Escherichia coli very often elicit acute inflammation, while Staphylococcus aureus infections tend to cause mild, subclinical inflammation and persistent infections. The molecular causes undercovering the different disease patterns are poorly understood. We therefore profiled kinetics and extent of global changes in the transcriptome of primary bovine mammary epithelia cells (MEC) subsequent to challenging them with heat inactivated preparations of E. coli or S. aureus pathogens. E. coli swiftly and strongly induced expression of cytokines and bactericidal factors. S. aureus elicited a retarded response and failed to quickly induce expression of bactericidal factors. Both pathogens induced a similar pattern of chemokines for cell recruitment into the udder, but E. coli stimulated their synthesis much faster and stronger. The genes which are exclusively and most strongly up-regulated by E. coli may be clustered into a regulatory network with Tumor necrosis factor alpha (TNF-a) and Interleukin 1 (IL-1) in a central position. In contrast, the expression of these master cytokines is barely regulated by S. aureus. Both pathogens quickly trigger enhanced expression of IL-6. This is still possible after completely abrogating MyD88 dependent TLR-signalling in MEC. The E. coli specific strong induction of TNF-a and IL-1 expression may be causative for the severe inflammatory symptoms of animals suffering from E. coli mastitis while avoidance to quickly induce synthesis of bactericidal factors may support persistent survival of S. aureus within the udder. We suggest that S. aureus subverts MyD88-dependent activation of immune gene expression in MEC.
Publication Title
Comparative kinetics of Escherichia coli- and Staphylococcus aureus-specific activation of key immune pathways in mammary epithelial cells demonstrates that S. aureus elicits a delayed response dominated by interleukin-6 (IL-6) but not by IL-1A or tumor necrosis factor alpha.
Sample Metadata Fields
Specimen part, Treatment, Time
View Samples- Homo sapiens
- 6 Downloadable Samples
- Affymetrix Human Exon 1.0 ST Array [transcript (gene) version (huex10st)
Description
Long non-coding RNAs (lncRNAs) contribute to (patho)physiological processes in the heart. Aging is the major risk factor for cardiovascular disease and cardiomyocyte apoptosis is an underlying cause for age-related cardiac dysfunction. RNA sequencing of cardiomyocytes from young and aged mouse hearts revealed several aging-regulated lncRNAs. An siRNA screen for caspase activity identified the aging-regulated lncRNA Sarrah (ENSMUST00000140003) as anti-apoptotic, which we confirmed in human cells (human SARRAH is annotated as OXCT1-AS1). Importantly, human engineered heart tissue showed impaired contractile force development upon SARRAH knockdown compared with controls. Computational prediction of RNA-DNA triple helix formation showed that SARRAH may directly bind the promoters of genes downregulated after SARRAH silencing, which mainly consist of cell survival genes. Indeed, nuclear magnetic resonance spectroscopy confirmed RNA-DNA triple helix formation and cardiomyocytes lacking the triple helix-forming domain of Sarrah showed an increase in apoptosis. One of the key direct SARRAH targets is NRF2, an anti-oxidant transcription factor. Restoration of NRF2 levels after SARRAH silencing partially rescues the reduction in cell viability. RNA affinity purification mass spectrometry analysis identified CRIP2 as main protein interaction partner. Furthermore, SARRAH associates with acetyltransferase p300 and acetylated histone H3K27. Finally, Sarrah was also profoundly downregulated after acute myocardial infarction (AMI) in mice. Adeno-associated virus-mediated overexpression of Sarrah in mice showed better recovery of cardiac contractile function after AMI compared to control mice, as measured by echocardiography and magnetic resonance imaging, consistent with a decrease in cardiomyocyte cell death and an increase in endothelial cell proliferation. In summary, we identified the anti-apoptotic evolutionary conserved lncRNA Sarrah, which is downregulated by aging, as a pivotal regulator of cardiomyocyte survival. Sarrah overexpression has beneficial effects on AMI recovery highlighting it as a potential therapeutic approach against heart failure.
Publication Title
Aging-regulated anti-apoptotic long non-coding RNA Sarrah augments recovery from acute myocardial infarction.
Sample Metadata Fields
Specimen part
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