SuperSeries contain expression data from the nuclei of cell types involved in patterning events, with focus on root apical stem cell formation, at 16-cell stage, early globular stage and late globular stage in the early Arabidopsis embryo (atlas). Expression data comparing nuclear and cellular RNA isolated from whole 16-cell stage Arabidopsis embryos is also included.
Transcriptome dynamics revealed by a gene expression atlas of the early Arabidopsis embryo.
Specimen part
View SamplesThe establishement of the first plant tissues occurs during embryo development. Indeed, cell types that will form the Arabidopsis root stem cell niche are first specified during 16-cell (16C), early globular (EG) and late globular (LG) stage of embryonic development. While some regulatory factors are known, we do not yet understand the genetic networks underlying the specification of these cell types. One main reason for this is the difficulties in adapting genome-wide approaches to the cellular level. Here, we have adapted such an approach (INTACT) to generate microarray-based cell type-specific transcriptomic profiles at 16C to LG stage for use in determining the role of the transcriptome in cell specification and differentiation during root stem cell niche formation.
Transcriptome dynamics revealed by a gene expression atlas of the early Arabidopsis embryo.
Specimen part
View SamplesExpression analysis from two genetically engineered mouse models of osteosarcoma determine the expression profile of mouse osteosarcoma Human osteosarcoma (OS) is comprised of three different subtypes: fibroblastic, chondroblastic and osteoblastic. We previously generated a mouse model of fibroblastic OS by conditional deletion of p53 and Rb in osteoblasts. Here we report an accurate mouse model of the osteoblastic subtype using shRNA-based suppression of p53. Like human OS, tumors frequently present in the long bones and preferentially disseminate to the lungs; features less consistently modeled using Cre:lox approaches. Our approach allowed direct comparison of the in vivo consequences of targeting the same genetic drivers using different technology. This demonstrated that the effects of Cre:lox and shRNA mediated knock-down are qualitatively different, at least in the context of osteosarcoma. Through the use of complementary genetic modification strategies we have established a model of a distinct clinical subtype of OS that was not previously represented and more fully recapitulated the clinical spectrum of this human tumor.
Modeling distinct osteosarcoma subtypes in vivo using Cre:lox and lineage-restricted transgenic shRNA.
Specimen part
View SamplesThe goal of this work was to examine if reserveratrol or rosiglitazone treatment could improve the metabolic status of obese male ZDF rats after 6 weeks. Gene expression was analyzed in several key metabolic tissues, including liver, various white adipose tissue depots, red tibalus muscle, and peripheral blood mononuclear cells.
Two-way learning with one-way supervision for gene expression data.
Specimen part
View SamplesThe goal of this work was to examine if reserveratrol or rosiglitazone treatment could improve the metabolic status of obese male ZDF rats after 6 weeks. Gene expression was analyzed in several key metabolic tissues, including liver, various white adipose tissue depots, red tibalus muscle, and peripheral blood mononuclear cells.
Two-way learning with one-way supervision for gene expression data.
Specimen part
View SamplesThe goal of this work was to examine if reserveratrol or rosiglitazone treatment could improve the metabolic status of obese male ZDF rats after 6 weeks. Gene expression was analyzed in several key metabolic tissues, including liver, various white adipose tissue depots, red tibalus muscle, and whole blood.
Two-way learning with one-way supervision for gene expression data.
Specimen part
View SamplesMitochondrial biogenesis is regulated by signaling pathways sensitive to extracellular conditions and to the internal environment of the cell. We found that deletion of protein phosphatase 2A (PP2A) or of protein phosphatase 6 (PP6) diminishes the nuclear transcriptional response associated with mtDNA damage. Overall design: Six samples were analyzed to determine message RNA levels.
Deletion of conserved protein phosphatases reverses defects associated with mitochondrial DNA damage in Saccharomyces cerevisiae.
Specimen part, Subject
View SamplesChronic inflammation during placental malaria (PM) caused by Plasmodium falciparum is most frequent in first-time mothers and is associated with poor maternal and fetal outcomes. In the first genome wide analysis of the local human response to sequestered malaria parasites, we identified genes associated with chronic PM, then localized the corresponding proteins and immune cell subsets in placental cryosections.
Genome-wide expression analysis of placental malaria reveals features of lymphoid neogenesis during chronic infection.
No sample metadata fields
View SamplesTreatment of DBA/2J mice with a combination of L-methionine and valproic acid significantly attenuated progressive hearing loss. We examined gene expression in the whole cochlea of the mice. This study was aimed to detect genes of which change in expression levels were associated with attenuation of progressive hearing loss in the mice.
Attenuation of progressive hearing loss in DBA/2J mice by reagents that affect epigenetic modifications is associated with up-regulation of the zinc importer Zip4.
Sex, Age, Specimen part
View SamplesIn these microarray experiments, we characterize the gene expression of mammary epithelial cells (MCF10A cells) grown in either a traditional monolayer cell culture setting (2D) or on Matrigel, which induces single MCF10A cells to form organized acinar structures (3D). Morphogenesis of mammary epithelial cells into organized acinar structures in vitro is accompanied by widespread changes in gene expression patterns, including a substantial decrease in expression of Myc.
Epithelial cell organization suppresses Myc function by attenuating Myc expression.
Specimen part, Cell line, Time
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