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GSE44390
Homo sapiens
10 Downloadable Samples
Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
Cancer cell phenotypes are partially determined by epigenetic specifications such as DNA methylation. Metastasis development is a late event in cancerogenesis and might be associated with epigenetic alterations. Here, we analyzed genome wide DNA methylation changes that were associated with pro-metastatic phenotypes in non-small cell lung cancer with Reduced Representation Bisulfite Sequencing. DNMT-inhibition by 5-Azacytidine at low concentrations reverted the pro-metastatic phenotype. 5-Azacytidine led to preferential loss of DNA methylation at sites that were DNA hypermethylated during the in vivo selection. Changes in DNA methylation persisted over time.
Publication Title
DNA methyltransferase inhibition reverses epigenetically embedded phenotypes in lung cancer preferentially affecting polycomb target genes.
Sample Metadata Fields
Cell line
View Samples- Homo sapiens
- 10 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
Here, we analyzed global gene expression changes that were associated with pro-metastatic phenotypes in non-small cell lung cancer using the Affymetrix microarray platform.
Publication Title
DNA methyltransferase inhibition reverses epigenetically embedded phenotypes in lung cancer preferentially affecting polycomb target genes.
Sample Metadata Fields
Cell line
View Samples- Mus musculus
- 6 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
In order to investigate the function of PAX5 in ALL, we isolated bone marrow cells from C57Bl6 mice and transformed them with BCR-ABL1. In a second transduction the BCR-ABL1 driven pre-B cells were transformed either with PAX5-GFP or empty vector control (GFP) and subjected to gene expression analysis.
Publication Title
BACH2 mediates negative selection and p53-dependent tumor suppression at the pre-B cell receptor checkpoint.
Sample Metadata Fields
Age, Specimen part, Disease, Disease stage
View Samples- Mus musculus
- 6 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
In order to investigate the function of MYC in ALL, we isolated bone marrow cells from conditional MYC knockout mice and transformed them with BCR-ABL1. In a second transduction the BCR-ABL1 driven pre-B cells were transformed either with CRE or empty vector control.
Publication Title
BACH2 mediates negative selection and p53-dependent tumor suppression at the pre-B cell receptor checkpoint.
Sample Metadata Fields
Age, Specimen part, Disease, Disease stage
View Samples- Mus musculus
- 6 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
In order to investigate the function of pre-B cell receptor in ALL, we isolated bone marrow cells from Ighm KO mice and transformed them with BCR-ABL1. In a second transduction the BCR-ABL1 driven pre-B cells were transformed either with uchain-CD8 or empty vector control (CD8) and subjected to gene expression analysis.
Publication Title
BACH2 mediates negative selection and p53-dependent tumor suppression at the pre-B cell receptor checkpoint.
Sample Metadata Fields
Age, Specimen part, Disease, Disease stage
View Samples- Mus musculus
- 6 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
The aim was to investigate how BCL6 genotype affects Bach2 dependent gene expression changes.
Publication Title
BACH2 mediates negative selection and p53-dependent tumor suppression at the pre-B cell receptor checkpoint.
Sample Metadata Fields
Age, Specimen part, Disease, Disease stage
View Samples- Mus musculus
- 10 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
Foxp1 is expressed throughout B cell development, but the physiological functions in mature B lymphocytes are unknown. We therefore evaluated differential gene expression in Foxp1-deficient B cells, with or
Publication Title
Foxp1 controls mature B cell survival and the development of follicular and B-1 B cells.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 8 Downloadable Samples
- Affymetrix Mouse Gene 2.0 ST Array (mogene20st)
Description
We identified the Hippo pathway and its effector YAP as a key pathway that controls stellate cell activation. YAP is a transcriptional co-activator and we found that it drives the earliest changes in gene expression during stellate cell activation.
Publication Title
The Hippo pathway effector YAP controls mouse hepatic stellate cell activation.
Sample Metadata Fields
Specimen part, Treatment
View Samples- Homo sapiens
- 194 Downloadable Samples
- Affymetrix Human Genome U133A Array (hgu133a)
Description
Chronic lymphocytic leukemia (CLL) is a common and heterogeneous disease. An accurate prediction of outcome is highly relevant for the development of personalized treatment strategies. Microarray technology was shown to be a useful tool for the development of prognostic gene expression scores. However, there are no gene expression scores which are able to predict overall survival in CLL based on the expression of few genes that are better than established prognostic markers. We correlated 151 CLL microarray data sets with overall survival using Cox regression and supervised principal component analysis to derive a prognostic score. This score based on the expression levels of eight genes and was validated in an independent group of 149 CLL patients by quantitative real time PCR. The score was predictive for overall survival and time to treatment in univariate Cox regression in the validation data set (both: p<0.001) and in a multivariate analysis after adjustment for 17p and 11q deletions and the IgVH-status. The score achieved superior prognostic accuracy compared to models based on genomic aberrations and IgVH-status and may support personalized therapy.
Publication Title
An eight-gene expression signature for the prediction of survival and time to treatment in chronic lymphocytic leukemia.
Sample Metadata Fields
Specimen part, Disease, Disease stage
View Samples- Homo sapiens
- 6 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
A non-functional myosin Vb motor in duodenal enterocytes results in disruption of epithelial cell polarity characterized by complete loss of microvilli and mislocalization of apical brush border proteins in the cytoplasm which finally cause a devastating disease in neonates with severe malabsorption defects accompanied by protracted diarrhea during infancy, classified as microvillus inclusion disease (MVID). The exact mechanisms how loss-of-function of MYO5B induces polarity loss are not completely understood in MVID pathogenesis. Obtaining better insights in cell polarity defects caused by loss of MYO5B, we performed microarray- in combination with protein expression-analysis in an inducible CaCo2 MYO5B RNAi cell system. Surprisingly, in MYO5B-depleted CaCo2 cells, CDH1 coding for the cell adhesion protein E-Cadherin and important for cell adhesion and therefore maintenance of cell polarity, was significantly downregulated. Interestingly, mesenchymal cell markers, specifically Vimentin and N-Cadherin, physiologically not expressed in differentiated epithelium, were upregulated and accompanied by increased phospho-c-jun levels in the nucleus. Importantly phospho-c-jun was also found in nuclei of duodenal enterocytes in MVID patients, indicating loss of MYO5B induces epithelial cell scattering in enterocytes.
Publication Title
Microvillus inclusion disease: loss of Myosin vb disrupts intracellular traffic and cell polarity.
Sample Metadata Fields
Specimen part, Cell line
View Samples