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GSE20151
Homo sapiens
4 Downloadable Samples
Affymetrix Human Genome U133A Array (hgu133a)
Description
Neutrophils are known to be stimulated by different periodontal bacteria to produce reactive oxygen species and cytokines. It is inportant to investigate the gene changes made by bacteria of importance, of which, for periodontal disease, fusobaterium nucleatum is one. we used microarrays to investigate gene experssion changes in peripheral blood neutrophils werwhich e stimulated with or with out Fusobacterium Nucleatum (10953).
Publication Title
Fusobacterium nucleatum regulation of neutrophil transcription.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 4 Downloadable Samples
- Affymetrix Human Genome U133A Array (hgu133a)
Description
Peripheral blood neutrophils from periodontitis patients exhibit a hyper-reactive and hyper-active phenotype (collectively termed hyper-responsivity) in terms of production of reactive oxygen species (ROS) however the molecular basis for this observation is yet to be determined. Our objectives were to identify genes differentially expressed in hyper-responsive peripheral blood neutrophils from chronic periodontitis patients relative to periodontally healthy controls and use this data to identify potential contributory pathways to the hyper-responsive neutrophil phenotype.
Publication Title
Periodontitis associates with a type 1 IFN signature in peripheral blood neutrophils.
Sample Metadata Fields
Specimen part
View Samples- Rattus norvegicus
- 15 Downloadable Samples
- Affymetrix Rat Gene 2.1 ST Array (ragene21st)
Description
Analysis of the effects of sulphatide specific antibody (O4, 20microg/ml) on myelinating cultures generated from dissociated embryonic rat spinal cord after 24 hours treatment to give insights into effects of lipid-specific antibodies and its implication in demyelinating diseases.
Publication Title
Lipid-specific IgMs induce antiviral responses in the CNS: implications for progressive multifocal leukoencephalopathy in multiple sclerosis.
Sample Metadata Fields
Specimen part, Treatment
View Samples- Homo sapiens
- 10 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
We constructed a primary lung cell model to permit regulated expression of KRASG12D. To do this, we leveraged a non-transformed, immortalized, human primary bronchial epithelial cell line (HBEC; hTert, CDK4, TP53 knockdown) that remains anchorage dependent and do not develop tumors when implanted into mice. We next modified these cells by stably integrating a regulatable KRASG12D allele, iKRASG12D, such that physiological expression of mutant KRAS is activated upon addition of doxycycline. The HBEC-iKRAS (WT) cell line and HBEC-iKRASG12D (MUT) cell line were propagated with or without Doxycycline (500ng/ml) respectively. RNA profiling of HBEC-iKRASG12D and HBEC-iKRASWT cells revealed widespread changes for HBECs harboring the activated KRAS allele in the presence of Dox. Within the KRASG12D-induced genes, the Molecular Signatures Database identified the oncogenic RAS signature as a top-enriched gene set. Upregulation of Ras signaling in Dox-treated HBEC-iKRASG12D cells was also supported by a significant overlap with a KRAS signature previously characterized by Singh et al.
Publication Title
In vivo screening identifies GATAD2B as a metastasis driver in KRAS-driven lung cancer.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 12 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
The sequence of gene regulatory events that drive neonatal germ cell development in the mammalian testis is not yet clear. We assessed changes in mRNA utilization in the neonatal testis at 1 and 4 dpp, times when the testis contains quiescent gonocytes (1 dpp) and proliferating spermatogonia (4 dpp). There are not thought to be major changes in the nature or number of somatic cells over that interval.
Publication Title
Translational activation of developmental messenger RNAs during neonatal mouse testis development.
Sample Metadata Fields
Age, Specimen part
View Samples- Mus musculus
- 15 Downloadable Samples
Illumina HiSeq 2500
Description
We reported this study established a mouse model of fibrosis- and alcohol-associated AKI and identified key mechanistic pathways. Overall design: kidney mRNA profiles of Olive oil, CCl4, EtOH, and CCl4+EtOH treatment in C57BL/6 mice were generated by deep sequencing.
Publication Title
A mouse model of alcoholic liver fibrosis-associated acute kidney injury identifies key molecular pathways.
Sample Metadata Fields
Sex, Specimen part, Cell line, Subject
View Samples- Mus musculus
- 324 Downloadable Samples
- Illumina MiSeq, Illumina HiSeq 2500, Illumina HiSeq 4000
Description
Vascular smooth muscle cells (VSMCs) show pronounced heterogeneity across and within vascular beds, with direct implications for their function in injury response and atherosclerosis. Here we combine single-cell transcriptomics with lineage tracing to examine VSMC heterogeneity in healthy mouse vessels. The transcriptional profiles of single VSMCs consistently reflect their region-specific developmental history and show heterogeneous expression of vascular disease-associated genes involved in inflammation, adhesion and migration. We detect a rare population of VSMC-lineage cells that express the multipotent progenitor marker Sca1, progressively downregulate contractile VSMC genes and upregulate genes associated with VSMC response to inflammation and growth factors. We find that Sca1 upregulation is a hallmark of VSMCs undergoing phenotypic switching in vitro and in vivo, and reveal an equivalent population of Sca1-positive VSMC-lineage cells in atherosclerotic plaques. Together, our analyses identify disease-relevant transcriptional signatures in VSMC-lineage cells in healthy blood vessels, with implications for disease susceptibility, diagnosis and prevention. Overall design: This entry contains data from the following analyses: (1) Bulk RNA-seq of mouse VSMCs isolated from aortic arch (AA) and descending thoracic aorta (DT) regions in triplicates. (2) Pooled RNA-seq of mouse Sca1- VSMCs and Sca1- or Sca1+ adventitial cells in triplicates. (3) Single-cell RNA-seq of VSMCs from the AA and DT regions (143 cells). (4) VSMC lineage label positive and negative cells isolated from the medial layer of mouse aorta, which expressed or did not express the Sca1 protein (155 cells). (5) 10X single-cell RNA-seq analysis of: lineage positive plaque cells isolated from mice following 14 or 18 weeks of high fat diet feeding, cells isolated from the whole aorta and lineage positive VSMCs from the medial layer.
Publication Title
Disease-relevant transcriptional signatures identified in individual smooth muscle cells from healthy mouse vessels.
Sample Metadata Fields
Specimen part, Subject
View Samples- Homo sapiens
- 5 Downloadable Samples
- Affymetrix Human Exon 1.0 ST Array [probe set (exon) version (huex10st)
Description
Screening small molecules and drugs for activity to modulate alternative splicing, we found that amiloride, distinct from four other intracellular pH-affecting analogues, could normalize the splicing of BCL-X, HIPK3 and RON/MISTR1 transcripts in human hepatocellular carcinoma Huh-7 cells. To elucidate the underlying mechanisms, our proteomic analyses of amiloride-treated cells detected hypo-phosphorylation of splicing factor SF2/ASF and also decreased levels of SRp20 and two un-identified SR proteins. We further observed decreased phosphorylation of AKT, ERK1/2 and PP1, while increased phosphorylation of p38 and JNK, suggesting that amiloride treatment down-regulated kinases and up-regulated phosphatases in the signal pathways known to affect the splicing factor protein phosphorylation. The amiloride effects of splicing factor protein hypo-phosphorylation andnormalizedoncogenic RNA splicing were both abrogated by pre-treatment with a PP1 inhibitor. We then performed global exon array analysis of Huh-7 cells treated with amiloride for 24 hours. Using gene array chips (Affymetrix GeneChip Human Exon 1.0 ST Array of >518000 exons of 42974 genes) for exon array analysis (set parameters of correlation coefficient 0.7, splicing index -1.585 , and log2 ratio -1.585), we found that amiloride influenced the splicing patterns of 551 genes involving at least 584 exons, which included 495 known protein-coding genes involving 526 exons, many of which play key roles in functional networks of ion transport, extracellular matrix, cytoskeletons and genome maintenance. Cellular functional analyses revealed subsequent invasion and migration defects, cell cycle disruption, cytokinesis impairment, and lethal DNA degradation in amiloride-treated Huh-7 cells. This study thus provides mechanistic underpinnings for exploiting small molecule modulation of abnormal RNA splicing for cancer therapeutics.
Publication Title
Small molecule amiloride modulates oncogenic RNA alternative splicing to devitalize human cancer cells.
Sample Metadata Fields
Cell line
View Samples- Homo sapiens
- 12 Downloadable Samples
- IlluminaHiSeq2000
Description
Heterogeneity in pluripotent cells marks a metastable state where cells may drift between native and lineage-primed populations. While the role for these heterogeneities are unclear, they may reflect the dynamic equilibriums of signaling networks and have a direct effect on differentiation potentialities. Here, we report the role of the cell cycle in establishing heterogeneity of human pluripotent stem cells. By utilizing the FUCCI cell cycle indicator system coupled to fluorescent activated cell sorting (FACS), we have uncovered that the cell cycle drives heterogeneity at the epigenetic, transcriptional and post-transcriptional levels. Our data show widespread dynamics in 5-hydroxymethylcytosine (5hmC) during the cell cycle. Furthermore, transcript profiling by RNA-sequencing identified >500 genes that were cell cycle-regulated, of which the largest cohort of genes were transcriptional regulators. In sum, we demonstrate the role of the cell cycle in coordinating cellular transitions between metastable states in pluripotent stem cells. Overall design: mRNA sequencing of the cell cycle phases; early & late G1, S and G2/S from human ES cells in triplicate.
Publication Title
Cell-cycle control of developmentally regulated transcription factors accounts for heterogeneity in human pluripotent cells.
Sample Metadata Fields
No sample metadata fields
View Samples- Mus musculus
- 6 Downloadable Samples
- NextSeq 500
Description
Single cell RNA sequencing of murine circulating blood monocytes under steady state conditions. 2 plates of cx3cr1-cre:rosa26YFP monocytes and 4 plates (3 plates total monocytes and 1 plate Ly6Cint monocytes) were pre-enriched by CD115-biotin MACS and afterwards FACS sorted. Overall design: Indexed FACS sorting in 384well plates followed by MARS-Seq (Jaitin et al., Science 2014).
Publication Title
Genomic Characterization of Murine Monocytes Reveals C/EBPβ Transcription Factor Dependence of Ly6C<sup>-</sup> Cells.
Sample Metadata Fields
Sex, Age, Specimen part, Cell line, Subject
View Samples