Filters
Technology
Platform
GSE60933
Mus musculus
5 Downloadable Samples
Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
Dual oxidases play a role in innate host defense at barrier epithelia. We examined the effect of loss of dual oxidase function (duoxa-/-) on gene expression in the mouse terminal ileum at homeostasis. To control for cage/litter effects, duoxa-/- were cohoused with wild type littermate controls.
Publication Title
Increased Expression of DUOX2 Is an Epithelial Response to Mucosal Dysbiosis Required for Immune Homeostasis in Mouse Intestine.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples- Mus musculus
- 16 Downloadable Samples
- Affymetrix Mouse Gene 2.1 ST Array (mogene21st)
Description
Gut dysbiosis is closely involved in the pathogenesis of inflammatory bowel disease (IBD). However, it remains unclear whether IBD-associated gut dysbiosis plays a primary role in disease manifestation or is merely secondary to intestinal inflammation. Here, we established a humanized gnotobiotic (hGB) mouse system to assess the functional role of gut dysbiosis associated with two types of IBD - Crohn's disease (CD) and ulcerative colitis (UC).
Publication Title
Functional Characterization of Inflammatory Bowel Disease-Associated Gut Dysbiosis in Gnotobiotic Mice.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 9 Downloadable Samples
Ion Torrent Proton
Description
Analysis of murine cardiomyocyte cell line HL-1 treated with Ivermectin or Importazole. Results provide insight into the pathways regulated by the treatments. Overall design: RNA-seq of mouse HL-1 cardiomyocytes treated with vehicle (DMSO), Ivermectin, or Importazole for 24 hours, in triplicate, using Ion Proton System.
Publication Title
Antihypertrophic Effects of Small Molecules that Maintain Mitochondrial ATP Levels Under Hypoxia.
Sample Metadata Fields
Specimen part, Cell line, Treatment, Subject
View Samples- Escherichia coli
- 6 Downloadable Samples
- Affymetrix E. coli Genome 2.0 Array (ecoli2)
Description
Interaction between the host and invading pathogen determines the fate of both organisms during the infectious state. The host is equipped with a battery of immune reactions, while the pathogen displays a variety of mechanisms to compromise host immunity. Although bacteria alter their pattern of gene expression when they enter host organisms, studies to elucidate the mechanism behind this are only in their infancy. In the present study, we examined the possibility that host immune proteins directly participate in the change of gene expression in bacteria. To this end, Escherichia coli was treated with a mixture of the extracellular region of membrane-bound peptidoglycan recognition protein LC (PGRP-LC) and the antimicrobial peptide attacin of Drosophila, and subsequently subjected to DNA microarray analysis for the repertoire of mRNA. We identified nearly 200 genes whose mRNA increased after the treatment, and at least four of them were induced in response to PGRP-LC. One such gene, lipoprotein-encoding nlpI, showed a transient increase of its mRNA level in adult flies depending on PGRP-LC, and NlpI-lacking E. coli had a smaller pathogenic effect with lowered growth/viability than the parental strain in adult flies. These results suggest that a host immune receptor triggers a change of gene expression in bacteria simultaneously to their recognition of the invader and induction of immune responses.
Publication Title
Peptidoglycan recognition protein-triggered induction of Escherichia coli gene in Drosophila melanogaster.
Sample Metadata Fields
No sample metadata fields
View Samples- Rattus norvegicus
- 12 Downloadable Samples
- Affymetrix Rat Genome 230 2.0 Array (rat2302)
Description
Wakame is an edible seaweed that is a common constituent in the Japanese diet. Previous studies showed that wakame consumption is associated with prevention of metabolic syndrome; however, the molecular mechanisms of this protective effect are poorly understood. To determine if the expression of hepatic genes is affected by the ingestion of brown seaweed, Undaria pinnatifida (wakame), rats were fed diets containing 0, 0.1, or 1.0 g/100 g dried wakame powder for 28 days. Administration of 1% wakame significantly decreased total serum total cholesterol levels. Hepatic gene expression was investigated using DNA microarray analysis. Microarray analysis showed that wakame suppresses the lipogenic pathway by downregulating SREBF-1. Moreover, bile acid biosynthesis and gluconeogenesis are promoted by upregulation of the PPAR signaling pathway, which leads to a reduction in the accumulation of cholesterol and promotion of -oxidation. These results provide useful genetic information about various biochemical processes by which wakame regulates energy metabolism.
Publication Title
Oral Administration of Edible Seaweed Undaria Pinnatifida (Wakame) Modifies Glucose and Lipid Metabolism in Rats: A DNA Microarray Analysis.
Sample Metadata Fields
Sex, Age, Specimen part
View Samples- Homo sapiens
- 10 Downloadable Samples
- Illumina HiSeq 2000
Description
Purpose: RNA-Seq analysis can help identify large set of differentially expressed genes at a time. We performed RNA-Seq analysis to identify differentially expressed genes in the PBMCs of war veterans suffering from PTSD. Methods: Total RNA from PBMCs from PTSD +ve and -ve individuals were used for RNA-Seq analysis. Results: We obtained, on average, ~60 millions reads per sample. More than 70% of the reads were mapped to human genome. Functional analysis of the differentially expressed genes (362) revealed dysregulation in immune system network. Conclusions: Our present study provides further proof that immune system related genes and pathways are dysregulated in PTSD PBMCs. Overall design: RNA-Seq was performed with RNA from 5 each control and PTSD individuals. PBMCs collected within one hour of blood draw were used for RNA isolation. 1 ug of total RNA was used for library synthesis and sequenced in a HighSeq 2000 illumina instrument at Tufts University.
Publication Title
Decreased AGO2 and DCR1 in PBMCs from War Veterans with PTSD leads to diminished miRNA resulting in elevated inflammation.
Sample Metadata Fields
Specimen part, Subject
View Samples- Drosophila melanogaster
- 6 Downloadable Samples
- Affymetrix Drosophila Genome 2.0 Array (drosophila2)
Description
The phagocytic elimination of cells undergoing apoptosis is an evolutionarily conserved innate immune mechanism for eliminating unnecessary cells. Previous studies showed an increase in the level of engulfment receptors in phagocytes after the phagocytosis of apoptotic cells, which leads to the enhancement of their phagocytic activity. However, precise mechanisms underlying this phenomenon require further clarification. We found that the pre-incubation of a Drosophila phagocyte cell line with the fragments of apoptotic cells enhanced the subsequent phagocytosis of apoptotic cells, accompanied by an augmented expression of the engulfment receptors Draper and integrin PS3. The DNA-binding activity of the transcription repressor Tailless was transiently raised in those phagocytes, depending on two partially overlapping signal-transduction pathways for the induction of phagocytosis as well as the occurrence of engulfment. The RNAi knockdown of tailless in phagocytes abrogated the enhancement of both phagocytosis and engulfment receptor expression. Furthermore, the hemocyte-specific RNAi of tailless reduced apoptotic cell clearance in Drosophila embryos. Taken together, we propose the following mechanism for the activation of Drosophila phagocytes after an encounter with apoptotic cells: two partially overlapping signaltransduction pathways for phagocytosis are initiated; transcription repressor Tailless is activated; expression of engulfment receptors is stimulated; and phagocytic activity is enhanced. This phenomenon most likely ensures the phagocytic elimination of apoptotic cells that stimulated phagocytes find thereafter and is thus considered as a mechanism to prime phagocytes in innate immunity.
Publication Title
Signaling pathway for phagocyte priming upon encounter with apoptotic cells.
Sample Metadata Fields
Cell line, Treatment, Time
View Samples- Mus musculus
- 9 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
G-CSF treatment targets CXCL12-abundant reticular (CAR) cells to suppress their production of a number of B trophic factors, including CXCL12, IL-6, IL-7, IGF-1, and Flt3 ligand.
Publication Title
Granulocyte colony-stimulating factor reprograms bone marrow stromal cells to actively suppress B lymphopoiesis in mice.
Sample Metadata Fields
Treatment
View Samples- Mus musculus
- 4 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Neural precursor cells (NPCs) are multipotent cells that can generate neurons, astrocytes, and oligodendrocytes in the mammalian central nervous system. Although Zbtb20 was expressed in NPCs, its functions in neural development are not fully understood. We performed microarray analysis to examine changes in gene expression between control and Zbtb20-overexpressed NPCs.
Publication Title
Zbtb20 promotes astrocytogenesis during neocortical development.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 8 Downloadable Samples
- Illumina HiSeq 2000
Description
We performed RNA-Seq on PHF21A-deficient patient-dervied lymphoblasts as well as two unaffected individuals. Overall design: We performed RNA-Seq from patient-derived lymphoblast cells. Libraries were polyA-selected and strand-specific according to the protocol described in PMID: 25607527
Publication Title
Transcriptome Analysis Revealed Impaired cAMP Responsiveness in PHF21A-Deficient Human Cells.
Sample Metadata Fields
Sex, Specimen part, Disease stage, Subject
View Samples