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GSE14795
Homo sapiens
25 Downloadable Samples
Affymetrix Human Genome U133A Array (hgu133a)
Description
To uncover new molecular mechanisms involved in IgAN pathogenesis, we compared the genomic profiles of 12 IgAN patients with 8 healthy subjects,
Publication Title
Altered modulation of WNT-beta-catenin and PI3K/Akt pathways in IgA nephropathy.
Sample Metadata Fields
Sex
View Samples- Homo sapiens
- 17 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
The basic defect of IgA nephropathy (IgAN) lies within peripheral blood mononuclear cells rather than local kidney abnormalities. Previously we showed an altered gene expression in monocytes compared to B and T cells isolated from IgAN patients (Kidney Int, 2010), thus our aim here was to study this subset more closely at genome-wide level.
Publication Title
Altered monocyte expression and expansion of non-classical monocyte subset in IgA nephropathy patients.
Sample Metadata Fields
Specimen part, Disease
View Samples- Homo sapiens
- 6 Downloadable Samples
- Affymetrix Human Genome U133A Array (hgu133a)
Description
The hallmark of IgA nephropathy (IgAN) is gross hematuria (GH) coinciding with or immediately following an upper respiratory or gastrointestinal tract infection and can represent the disease triggering event. Therefore, a whole genomic screening of IgAN patients during the GH was done to clarify the link between mucosal encountered antigens and the occurrence of glomerular hematuria. The modulated genes during GH show a clear involvement of the interferon signalling, antigen presenting pathway, and the immuno-proteasome. The gene characterizing cytotoxic effector lymphocytes (CX3CR1) implicated in vascular endothelial damage, was found up-regulated at both mRNA and protein level. In vitro antigenic stimulation of PBMCs on an independent set of IgAN patients and healthy blood donors (HBS) demonstrated that patients upregulate specifically CX3CR1 in an enhanced and dose dependant manner, while an expected down-regulation occurred in HBD. This enhanced activation occurred in both patients characterized by recurrent GH and by permanent microscopic hematuria (MH). We then analyzed glomerular fractalkine (FKN) expression, since this ligand is involved in the vascular gateway for CX3CR1+ cells towards the inflamed tissues. A significantly higher FKN expression on the capillary vessels and podocytes was found in recurrent GH patients compared to permanent MH, suggesting a predisposition for cytotoxic cell extravasation in recurrent GH patients.
Publication Title
Activated innate immunity and the involvement of CX3CR1-fractalkine in promoting hematuria in patients with IgA nephropathy.
Sample Metadata Fields
Sex, Specimen part, Disease, Disease stage, Subject
View Samples- Drosophila melanogaster
- 66 Downloadable Samples
Illumina HiSeq 2000
Description
This study crossed Drosophila melanogaster genotypes from four populations to the reference genome line. RNAseq data was then generated to study natural variation in allele specific expression.
Publication Title
No associated publication
Sample Metadata Fields
Sex, Specimen part, Cell line
View Samples- Homo sapiens
- 36 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
T-cell acute lymphoblastic leukemia (T-ALL) and lymphoma (T-LBL) share common morphologic and immunophenotypic features and are treated with similar therapeutic approaches. Nonetheless, they show distinct clinical presentations suggesting that they may represent two different biological entities. In order to investigate T-LBL and T-ALL biological characteristics we used transcriptional profiling approache. Genome-wide gene expression profiling, performed on 20 T-LBL and 10 T-ALL diagnostic specimens, showed that the two malignancies shared a large fraction of their transcriptional profile while a subset of genes appeared to be differentially expressed in T-LBL versus T-ALL. This gene signature included genes involved in chemotactic responses and angiogenesis which might play a role in the different tumor cell localization suggesting that T-LBL and T-ALL could be two distinct diseases with unique transcriptional characteristics.
Publication Title
No associated publication
Sample Metadata Fields
Specimen part, Disease
View Samples- Homo sapiens
- 32 Downloadable Samples
- Affymetrix Human Genome U133A Array (hgu133a)
Description
In order to identify genes dysregulated by the aberrant transcriptional activity of RUNX1-RUNX1T1, we used microarrays to determine the effect of this mutation on gene expression during myeloid and erythroid development of normal human progenitor cells.
Publication Title
Transcriptional dysregulation mediated by RUNX1-RUNX1T1 in normal human progenitor cells and in acute myeloid leukaemia.
Sample Metadata Fields
Specimen part
View Samples- Arabidopsis thaliana
- 20 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
Seven-day-old white-light-grown Arabidopsis seedlings were exposed for 15 minutes to polychromatic radiation with decreasing short-wave cut-off in the UV range, transferred back to the standard growth chamber and samples were taken 1 and 6 hours after the start of irradiation.
Publication Title
Genome-wide analysis of gene expression reveals function of the bZIP transcription factor HY5 in the UV-B response of Arabidopsis.
Sample Metadata Fields
Age, Time
View Samples- Homo sapiens
- 20 Downloadable Samples
- Illumina HiSeq 4000, Illumina HiSeq 3000, NextSeq 500
Description
Gene expression profile in Calu-3 cells infected with MERS-CoV or SARS-CoV
Publication Title
No associated publication
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 17 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Bronchial asthma is associated with type 2 immune responses induced by components of adaptive as well as innate immunity. Although innate cytokines such as IL-25 have been shown to play key roles in development of airway hyperreactivity (AHR), little is known of innate molecules that regulate IL-25-mediated airway inflammation. We found that blockade of repulsive guidance molecule b (RGMb) in an experimental murine model of asthma blocked the development of AHR, a cardinal feature of asthma, and that RGMb is expressed on F4/80+CD11b+CD11cneg macrophages (RGMb+ macrophages), which accumulated in the lungs of OVA-sensitized and challenged mice, but not in nave mice. Moreover, we found that a large fraction of the RGMb+ macrophages expressed the IL-25 receptor IL-17RB and produced IL-13. IL-25 was critical for the development of AHR in our model, since mice deficient in IL-17RB did not develop AHR. Finally, treatment with anti-RGMb mAb during the challenge phase of the protocol after allergen sensitization effectively prevented the development of AHR and airway inflammation, suggesting for the first time that RGMb+ cells, including RGMb+ macrophages, play critical roles in allergen-induced asthma.
Publication Title
No associated publication
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 14 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Global gene expression patterns were determined from microarray results on day 1, 3, 5, 7, 10 and 14 during plantaris muscle hypertrophy induced by synergist ablation in young adult mice (5 months).
Publication Title
Time course of gene expression during mouse skeletal muscle hypertrophy.
Sample Metadata Fields
Sex, Age, Specimen part, Treatment, Time
View Samples