Filters
Technology
Platform
GSE21706
Gallus gallus
6 Downloadable Samples
Affymetrix Chicken Genome Array (chicken)
Description
Ovarian cancer has a high mortality rate due, in part, to the lack of early detection and incomplete understanding of the origin of the disease. The hen is the only spontaneous model of ovarian cancer, and can therefore aid in the identification and testing of early detection strategies and therapeutics. To our knowledge, no studies to date have examined global gene expression in ovarian cancer of the hen. Our aim was to combine the use of the hen animal model and microarray technology to identify differentially expressed genes in ovarian tissue from normal hens compared to hens with ovarian cancer.
Publication Title
Gene expression profiling reveals differentially expressed genes in ovarian cancer of the hen: support for oviductal origin?
Sample Metadata Fields
Specimen part, Disease, Disease stage
View Samples- Mus musculus
- 29 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Transcriptional profiles in the HdhQ150 mouse model of HD and wild-type litter mates at 6, 12 and 18 months
Publication Title
Longitudinal analysis of gene expression and behaviour in the HdhQ150 mouse model of Huntington's disease.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples- Mus musculus, Homo sapiens
- 2 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Hijacking a key chromatin modulator creates epigenetic vulnerability for MYC-driven cancer.
Sample Metadata Fields
Specimen part, Treatment
View Samples- Homo sapiens
- 2 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
It remains unclear how epigenetic modulators impact the tumorigenic potential of Myc. Here we show that the core subunits, including Dpy30, of the major H3K4 methyltransferase complexes are selectively upregulated in Burkitt lymphoma, and Dpy30 is important for efficient genomic binding of Myc. Dpy30 heterozygosity does not affect normal animal physiology, but significantly suppressed lymphomagenesis and reduced expression of a subset of key pro-survival genes when Myc is hyper-activated. Dpy30 heterozygosity also impedes cellular transformation without affecting normal cell growth. These results suggest that Myc hijacks this chromatin modulator to coordinate its oncogenic program for efficient tumorigenesis, meanwhile creating epigenetic vulnerability, which we then exploited by specifically targeting Dpy30s activity to inhibit growth of the Burkitt lymphoma cell model.
Publication Title
Hijacking a key chromatin modulator creates epigenetic vulnerability for MYC-driven cancer.
Sample Metadata Fields
Specimen part, Treatment
View Samples- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
The epidermal growth factor receptor (EGFR) is frequently overexpressed in cancer and is an important therapeutic target. Aberrant expression and function of microRNAs has been associated with tumorigenesis. Bioinformatic predictions suggest that the human EGFR mRNA 3-untranslated region contains three microRNA-7 (miR-7) target sites, which are not conserved across mammals. We found that miR-7 down-regulates EGFR mRNA and protein expression in cancer cell lines (lung, breast, and glioblastoma) via two of the three sites, inducing cell cycle arrest and cell death. Because miR-7 was shown to decrease EGFR mRNA expression, we used microarray analysis to identify additional mRNA targets of miR-7. These included Raf1 and multiple other genes involved in EGFR signaling and tumorigenesis. Furthermore, miR-7 attenuated activation of protein kinase B (Akt) and extracellular signal-regulated kinase 1/2 (ERK1/2), two critical effectors of EGFR signaling, in different cancer cell lines. These data establish an important role for miR-7 in controlling mRNA expression and indicate that miR-7 has the ability to coordinately regulate EGFR signaling in multiple human cancer cell types.
Publication Title
Regulation of epidermal growth factor receptor signaling in human cancer cells by microRNA-7.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 12 Downloadable Samples
- Illumina HumanHT-12 V4.0 expression beadchip
Description
Analysis of genes that were differentially expressed in axolotl extract reprogrammed tumour xenografts compared to untreated controls. The study provided insight into the biological processes, signalling pathways and gene networks affected by the oocyte extract treatment which resulted in halted tumour growth in mice.
Publication Title
Cancer reversion with oocyte extracts is mediated by cell cycle arrest and induction of tumour dormancy.
Sample Metadata Fields
Specimen part, Treatment
View Samples- Homo sapiens
- 10 Downloadable Samples
- Illumina HumanWG-6 v3.0 expression beadchip
Description
Elevated expression and activity of the epidermal growth factor receptor (EGFR)/protein kinase B (Akt) signaling pathway is associated with development, progression and treatment resistance of head and neck cancer (HNC). Several studies have demonstrated that microRNA-7 (miR-7) regulates EGFR expression and Akt activity in a range of cancer cell types via its specific interaction with the EGFR mRNA 3 untranslated region (3-UTR). In the present study, we found that miR-7 regulated EGFR expression and Akt activity in HNC cell lines, and that this was associated with reduced growth in vitro and in vivo of cells (HN5) that were sensitive to the EGFR tyrosine kinase inhibitor (TKI) erlotinib (Tarceva). miR-7 acted synergistically with erlotinib to inhibit growth of erlotinib-resistant FaDu cells, an effect associated with increased inhibition of Akt activity. Microarray analysis of HN5 and FaDu cell lines transfected with miR-7 identified a common set of downregulated miR-7 target genes, providing insight into the tumor suppressor function of miR-7. Furthermore, we identified several target miR-7 mRNAs with a putative role in the sensitization of FaDu cells to erlotinib. Together, these data support the coordinate regulation of Akt signaling by miR-7 in HNC cells and suggest the therapeutic potential of miR-7 alone or in combination with EGFR TKIs in this disease.
Publication Title
Regulation of epidermal growth factor receptor signaling and erlotinib sensitivity in head and neck cancer cells by miR-7.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Mus musculus
- 8 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
This experiment was specifically designed to measure neural targets of Shh signaling, we sought to profile the genes upregulated by Hh signaling in the ventral neural tube to obtain a valid dataset. To obtain ventral-specific markers, we generated retinoic acid-treated EBs grown in the presence or absence of HH-Ag. We did not observe induction of ventral Hh markers in RA-treated constitutive Gli1FLAG EBs and used these for the control, baseline set. The presence of FoxA2, Nkx2.9 and Nkx6.1 amongst the top 10 genes based on expression levels suggests that profiling significantly enriches for Hh-dependent cell types. As expected, the benchmark standard Gli1 was not up-regulated in our array, since it is constitutively expressed in the control as well.
Publication Title
Genomic characterization of Gli-activator targets in sonic hedgehog-mediated neural patterning.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 21 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
We have performed a comprehensive transcriptional analysis of specific monocyte and macrophage (M) subsets during an acute self-resolving inflammatory insult. Following initial induction of acute inflammation, tissue resident (Resident) M are rapidly cleared from the inflammatory foci, only becoming recoverable as inflammation resolves. Monocytes are recruited to the inflammatory lesion where they differentiate into M. We term these monocyte-derived M inflammation-associated to distinguish them from Resident M which are present throughout the inflammatory response and can renew during the resolution of inflammation by proliferation. Comparative analysis of the Mo and M populations (both inflammation-associated and Resident M) identifies select genes expressed in subsets of inflammation-associated and Resident M that play important roles in the resolution of inflammation and/or for immunity, including molecules involved in antigen presentation, cell cycle and others associated with immaturity and M activation.
Publication Title
The transcription factor Gata6 links tissue macrophage phenotype and proliferative renewal.
Sample Metadata Fields
Sex, Specimen part
View Samples- Mus musculus
- 9 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
3 ventricles from E18.5 male mice were pooled for each array. Three arrays per genotype.
Publication Title
ERRgamma directs and maintains the transition to oxidative metabolism in the postnatal heart.
Sample Metadata Fields
No sample metadata fields
View Samples