ULT1 and CLF function antagonistically as epigenetic regulators of gene expression in Arabidopsis. We sought to identity their global downstream target genes at two stages of plant development and determine their common targets.
The Trithorax Group Factor ULTRAPETALA1 Regulates Developmental as Well as Biotic and Abiotic Stress Response Genes in Arabidopsis.
No sample metadata fields
View SamplesFlaviviruses, particularly Japanese encephalitis virus (JEV) and West Nile virus (WNV), are important causes of virus-induced central nervous system (CNS) disease in humans. We used microarray analysis to identify cellular genes that are differentially regulated following infection of the brain with JEV (P3) or WNV (New York 99). Gene expression data for these flaviviruses was compared to that induced following infection of the brain with reovirus (Type 3 Dearing), an unrelated neurotropic virus. Although several studies have described gene expression changes following virus infection of the brain, this report is the first to directly compare large-scale gene expression data from different viruses. We found that a large number of genes were up-regulated in common to infections with all 3 viruses (fold change > 2, P < 0.001), including genes associated with interferon signaling, the immune system, inflammation and cell death/survival signaling. In addition, genes associated with glutamate signaling were down-regulated in common to infections with all 3 viruses (fold change > 2, P < 0.001). These genes may serve broad spectrum therapeutic targets for virus-induced CNS disease. A distinct set of genes were up-regulated following flavivirus-infection, but not following infection with reovirus. These genes were associated with tRNA charging and may serve as therapeutic targets for flavivirus-induce CNS disease.
Virus-induced transcriptional changes in the brain include the differential expression of genes associated with interferon, apoptosis, interleukin 17 receptor A, and glutamate signaling as well as flavivirus-specific upregulation of tRNA synthetases.
Specimen part, Treatment
View SamplesGenetic variation governs protein expression through both transcriptional and post-transcriptional processes. To investigate this relationship, we combined a multiplexed, mass spectrometry-based method for protein quantification with an emerging mouse model harboring extensive genetic variation from 8 founder strains. We collected genome-wide mRNA and protein profiling measurements to link genetic variation to protein expression differences in livers from 192 Diversity Outcross mice. Overall design: Illumina 100bp single-end liver RNA-seq from 192 male and female Diversity Outbred 26-week old mice raised on standard chow or high fat diet. Each sample was sequenced in 2x technical replicates across multiple flowcells. Samples were randomly assigned lanes and multiplexed at 12-24x.
Epistatic Networks Jointly Influence Phenotypes Related to Metabolic Disease and Gene Expression in Diversity Outbred Mice.
Sex, Specimen part, Cell line, Subject
View SamplesTotal RNA extracted from Phytophthora sojae (strain P6497) and infected soybean hypocotyls (cultivar Harosoy) provided template for synthesis of cDNA probes used in the microarray hybridizations. Infected plant hypocotyls were sampled 6 h, 12 h, 24 h, and 48 h after inoculation. Mycelia were grown on synthetic media (H&S) or vegetable juice media (V8). Zoospores were sampled at 0 h, 2 h and 6 h after inducing encystment and germination by agitation.
The Phytophthora sojae avirulence locus Avr3c encodes a multi-copy RXLR effector with sequence polymorphisms among pathogen strains.
Specimen part, Time
View SamplesPbx homeodomain proteins have been implicated in the regulation of gene expression during muscle development. Whether Pbx proteins are required broadly for the regulation of muscle gene expression or are required for the expression of a specific subset of muscle gene expression is not known. We employed microarrays to determine the requirements for Pbx proteins during zebrafish development.
Pbx homeodomain proteins direct Myod activity to promote fast-muscle differentiation.
No sample metadata fields
View SamplesPatients with metastatic renal cell carcinoma (RCC) have a life expectancy of 6 months to 1 year. The deadly nature of RCC compared to other tumors that metastasize to bone, such as prostate cancer (PC), is associated with extensive arteriogenesis that requires recruitment of muscle progenitor cells to form the vascular smooth muscle around these large vessels. To identify potential genes that are involved in RCC recruitment of muscle progenitor cells we performed a microarray analysis to evaluate the global gene expression of human RCC (786-O) cells that form these large vessels in murine xenografts, versus human PC (PC3) that do not form these large vessels during osteolytic bone metastasis in mice (Xie C, et al. J Orthop Res. 2011;30(2):325-33). To assess changes in gene expression that occur when tumor cells interact with muscle progenitor cells, primary myoblast isolated from 5-day-old C57BL/6-Tg GFP neonatal mouse limbs were co-cultured with RCC or PC cells.
Increased Insulin mRNA Binding Protein-3 Expression Correlates with Vascular Enhancement of Renal Cell Carcinoma by Intravenous Contrast-CT and is Associated with Bone Metastasis.
Specimen part, Cell line
View SamplesRhabdomyosarcomas (RMS) are characterized by expression of myogenic specification genes, such as MyoD and/or Myf5, as well as their bHLH partners for heterodimerization, the E-proteins. We have shown that expression of a forced heterodimer of MyoD with one of the E2A proteins, E12, leads to differentiation in a RMS cell culture model when exposed to low serum conditions.
MyoD and E-protein heterodimers switch rhabdomyosarcoma cells from an arrested myoblast phase to a differentiated state.
Cell line
View SamplesThe goal of the study was to determine global expression differences and commanlities in three different Reeler mutant mosue models. Phenotypically mice deficient in Reelin, Dab1 or both Reelin receptors apoEr2 and Vldlr exhibit a severe Reeler phenotype.
CLASP2 Links Reelin to the Cytoskeleton during Neocortical Development.
Sex, Age, Specimen part
View SamplesAn evaluation of biopsies from patients with in-transit extremity melanoma who have been treated with melphalan in the setting of isolated limb infusion
Gene expression signatures as a guide to treatment strategies for in-transit metastatic melanoma.
No sample metadata fields
View SamplesTo identify patterns of gene expression that correlate with response to treatment with either melphalan or temozolomide we measured both gene expression using microarray genechips and response to drug using a standard in vitro cell proliferation assay. Senstivity to melphalan was measured 48hrs after drug treatment while sensitivity to temozolomide was measured 12 days after drug treatment.
Genomic and molecular profiling predicts response to temozolomide in melanoma.
Treatment
View Samples