This study profiles transcriptomic changes of Arabidopsis thaliana Col-0 in response to submergence. This dataset includes CEL files, RMA signal values and MAS5 P/M/A calls from total mRNA populations of plants at 9 to 10 leaf rosette stage. Biological replicates of root and shoot tissues were harvested after 7 h and 24 h of submergence in darkness along with corresponding non-submerged dark controls. To characterize the dark response, non-submerged light controls plants were harvested at the 0 h time point. Quantitative profiling of cellular mRNAs was accomplished with the Affymetrix ATH1 platform. Changes in the transcriptome in response to submergence and early darkness were evaluated, and the data led to identification of genes co-regulated at the conditional and organ-specific level.
Molecular characterization of the submergence response of the Arabidopsis thaliana ecotype Columbia.
Specimen part, Treatment
View SamplesAn ERF transcription factor, Submergence-1A (Sub1A), dramatically enhances the tolerance to prolonged submergence in rice. For instance, rice accessions which lack Sub1A (e.g. M202) die within 7-10 d of complete submergence. By contrast, genotypes which posses Sub1A (e.g. M202(Sub1)) can endure submergence stress for 14 d. In this study, the two near isogenic lines with and without Sub1A were subjected to microarray analysis using Affymetrix Gene Chip technology. This analysis provided beneficial information to elucidate general response to submergence stress and to estimate Sub1A-dependent defense response to the stress at mRNA accumulation level.
Cross-kingdom comparison of transcriptomic adjustments to low-oxygen stress highlights conserved and plant-specific responses.
Age, Specimen part, Treatment
View SamplesThis study analyzes transcriptomic data of Arabidopsis thaliana Col-0 and overexpression lines of Hypoxia Response Attenuator (HRA1; At3g10040) with Col-0 background (OE-HRA1). Two independent transgenic lines of OE-HRA1 were considered as biological replicates (OE-HRA1#1 and OE-HRA1#2). Seven-day-old seedlings were treated either with or without hypoxia (low oxygen) stress for 2 hours. This dataset includes CEL files, RMA signal values and MAS5 P/M/A calls from total mRNA populations. Quantitative profiling of cellular mRNAs was accomplished with the Affymetrix ATH1 platform.
A trihelix DNA binding protein counterbalances hypoxia-responsive transcriptional activation in Arabidopsis.
Specimen part, Treatment
View SamplesThis SuperSeries is composed of the SubSeries listed below.
JAK/STAT3 signalling is sufficient and dominant over antagonistic cues for the establishment of naive pluripotency.
Sex, Specimen part, Treatment
View SamplesThis microarray was performed to gain insight in the effect of GY118F stimulation in EpiSCs. This array is part of the following paper to be published in Nature Communications: JAK/STAT3 signalling is sufficient and dominant over antagonistic cues for the establishment of nave pluripotency by Anouk L. van Oosten, Yael Costa, Austin Smith & Jos C.R. Silva
JAK/STAT3 signalling is sufficient and dominant over antagonistic cues for the establishment of naive pluripotency.
Specimen part, Treatment
View SamplesThis microarray was performed to gain insight in the downstream targets of GY118F in iPS cells. This array is part of the following paper to be published in Nature Communications: JAK/STAT3 signalling is sufficient and dominant over antagonistic cues for the establishment of nave pluripotency by Anouk L. van Oosten, Yael Costa, Austin Smith & Jos C.R. Silva
JAK/STAT3 signalling is sufficient and dominant over antagonistic cues for the establishment of naive pluripotency.
Sex, Specimen part, Treatment
View SamplesEarly perturbations in vascular health can be detected by imposing subjects to a high fat (HF) challenge and measure response capacity. Subtle responses can be determined by assessment of whole-genome transcriptional changes. We aimed to magnify differences in health by comparing gene-expression changes in peripheral blood mononuclear cells (PBMCs) towards a high MUFA or SFA challenge between subjects with different cardiovascular disease risk profiles and to identify fatty-acid specific gene-expression pathways.
High fat challenges with different fatty acids affect distinct atherogenic gene expression pathways in immune cells from lean and obese subjects.
Sex, Specimen part, Subject
View SamplesBackground: Beneficial microbes can be actors in maintaining or stimulating barrier function, and may counteract pathogen-infection. Lactobacilli are particularly recognized for enhancing intestinal barrier function and to confer protective effects against multiresistant pathogens. Various L. acidophilus strains support intestinal immune barrier function and have been shown to improve resistance to pathogens. Although less extensively studied than beneficial bacteria, other food-based ingredients that can contribute to strengthening barrier function are dietary fibers. For instance, inulin and fructooligosaccharides (FOS) have recently been shown to enhance barrier function and protect against barrier dysfunction. Effects of these ingredients on intestinal barrier function were evaluated by quantifying regulation of gene expression by microarray. Methods: Caco-2 cells were incubated with probiotic strains or inulin-type fibers for 6 hours, total RNA was extracted and Affymterix Human Gene 1.1 ST arrays were used to analyze the gene expression profiles. Results: Only L. acidophilus modulated a group of 26 genes related to tight-junctions. Inulin-type fructans, L. brevis W63 and L. casei W56 regulated other genes, unrelated to tight junctions. L. acidophilus also had unique effects on a group of 6 genes regulating epithelial phenotype towards follicle-associated epithelium. L. acidophilus W37 was therefore selected for a challenge with STM and prevented STM-induced barrier disruption and decreased secretion of IL-8. L. acidophilus W37 increases TEER and can protect against STM induced disruption of gut epithelial cells integrity in vitro. Conclusion: Our results suggest that selection of specific bacterial strains for enforcing barrier function may be a promising strategy to reduce or prevent STM infections.
<i>Lactobacillus acidophilus</i> Attenuates <i>Salmonella</i>-Induced Stress of Epithelial Cells by Modulating Tight-Junction Genes and Cytokine Responses.
Sex, Cell line, Treatment, Subject
View SamplesThymocyte selection-associated high mobility group box protein family member 2 (TOX2) is a transcription factor belonging to the TOX family that shares a highly conserved high mobility group DNA binding domain with the other TOX members. While TOX1 has been shown to be an essential regulator of T-cell and natural killer (NK) cell differentiation in mice, little is known about the roles of the other TOX family members in lymphocyte development, particularly in humans. In this study, we found that TOX2 was preferentially expressed in mature human NK cells and was upregulated during in vitro differentiation of NK cells from human umbilical cord blood (UCB)derived CD34+ cells. Gene silencing of TOX2 intrinsically hindered the transition between early developmental stages of NK cells, while overexpression of TOX2 enhanced the development of mature NK cells from UCB CD34+ cells. We subsequently found that TOX2 was independent of ETS-1 but could directly upregulate the transcription of TBX21 (encoding T-BET). Overexpression of T-BET rescued the TOX2 knockdown phenotypes. Given the essential function of T-BET in NK cell differentiation, TOX2 therefore plays a crucial role in controlling normal NK cell development by acting upstream of TBX21 transcriptional regulation.
TOX2 regulates human natural killer cell development by controlling T-BET expression.
Specimen part, Subject
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Reprogramming capacity of Nanog is functionally conserved in vertebrates and resides in a unique homeodomain.
Specimen part
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