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GSE17170
Homo sapiens
68 Downloadable Samples
Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Assessment of mRNA expression levels in fat biopsies from subcutaneous adipose tissue from unrelated individuals.
Publication Title
A systems genetics approach implicates USF1, FADS3, and other causal candidate genes for familial combined hyperlipidemia.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 6 Downloadable Samples
- Affymetrix Human Genome U133 Plus 2.0 Array (hgu133plus2)
Description
Overexpression of USF1 in HEK293T cells in vitro to ascertain the genes downstream of USF1. Will identify direct targets as well as indirect targets of USF1.
Publication Title
A systems genetics approach implicates USF1, FADS3, and other causal candidate genes for familial combined hyperlipidemia.
Sample Metadata Fields
Cell line
View Samples- Saccharomyces cerevisiae
- 11 Downloadable Samples
- Affymetrix Yeast Genome 2.0 Array (yeast2)
Description
In the yeast Saccharomyces cerevisiae, cleavage factor I (CFI) and cleavage and polyadenylation factor (CPF) build the core of the transcription termination machinery. CFI comprises the Rna14, Rna15, Pcf11, and Clp1 proteins, as well as the associated Hrp5 RNA-binding protein. We found that CFI participates in the DNA damage response and that rna14-1 shows synthetic growth defects with mutants of different repair pathways, including homologous recombination, non-homologous end joining, post replicative repair, mismatch repair, and nucleotide excision repair, implicating that impaired RNAPII termination and 3-end processing decreases the cellular tolerance for DNA damage. Beyond replication progression defects, we found that bypass of the G1/S checkpoint in rna14-1 cells leads to synthetic sickness, accumulation of phosphorylated H2A, as well as increase in Rad52-foci and in recombination. Our data provide evidence that CFI dysfunction impairs RNAPII turnover, leading to replication hindrance and lower tolerance to exogenous DNA damage. These findings underscore the importance of coordination between transcription termination, DNA repair and replication in the maintenance of genomic stability.
Publication Title
Cleavage factor I links transcription termination to DNA damage response and genome integrity maintenance in Saccharomyces cerevisiae.
Sample Metadata Fields
No sample metadata fields
View Samples- Homo sapiens
- 12 Downloadable Samples
- Affymetrix Human Genome U219 Array (hgu219)
Description
Hepatic stellate cells (HSC) are the main stromal cell component of the liver. In healthy liver, quiescent HSC participate in the homeostasis of extracellular matrix (ECM) and store vitamin A. Liver injury causes HSC activation, where they participate in the wound-healing response, by producing ECM components as well as cytokines involved in liver regeneration and inflammation. Moreover, HSC are the main cell type responsible for fibrosis progression. The lack of homogeneous cultures and renewable sources of human HSC has limited the studies of the role of HSC in liver injury, repair anf fibrosis. Here we report a procedure to direct the differentiation of human pluripotent stem cells (PSC) to HSC. The HSClike population (iPS-HSC) was enriched in PDGFR positive cells that expressed key HSC markers. Whole genome transcriptomic analysis revealed that iPS-HSC displayed features intermediate to quiescent and activated HSC. Functional analysis demonstrated that iPS-HSC accumulated retinyl esters into lipid droplets and responded to injury mediators. Moreover, when cultured with HepaRG hepatocytes as aggregates, iPS-HSC support long-term hepatocyte metabolic function and respond to hepatocyte toxicity by activating and promoting organoid fibrogenesis.
Publication Title
Generation of Hepatic Stellate Cells from Human Pluripotent Stem Cells Enables In Vitro Modeling of Liver Fibrosis.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 18 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Cycles in spatial and temporal chromosomal organization driven by the circadian clock.
Sample Metadata Fields
Specimen part, Disease, Time
View Samples- Mus musculus
- 18 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
Expression profiles in WT MEF at different circadian time point after dexamethasone synchronyzation.
Publication Title
Cycles in spatial and temporal chromosomal organization driven by the circadian clock.
Sample Metadata Fields
Specimen part, Time
View Samples- Homo sapiens
- 16 Downloadable Samples
Ion Torrent Proton
Description
Objective: Alcoholic hepatitis (AH) is characterized by the expansion of ductular reaction (DR) cells and expression of liver progenitor cell (LPC) markers. The aim of this study was to identify the gene expression profile and associated genes of DR cells and to evaluate its weight in alcoholic disease progression. Design: KRT7+, KRT7- and total liver fractions were laser microdissected from liver biopsies (n=6) of patients with AH and whole transcriptome was sequenced. Gene signature was assessed in transcriptomic data from 41 patients with alcoholic liver disease. Pro-inflammatory profile was evaluated in tissue and serum samples and in human LPC organoids. Results: Transcriptome analysis of KRT7+ DR cells uncovered intrinsic gene pathways of DR and allowed identifying genes associated with DR expressed in AH. In addition, DR gene signature and associated genes correlated with disease progression and poor outcome in AH patients. Importantly, DR presented a pro-inflammatory profile with expression of CXC and CCL chemokines and was associated with infiltrating neutrophils. Moreover, LPC markers correlated with liver expression and circulating levels of inflammatory mediators. In vitro, human LPC organoids mimicked ductular reaction gene expression profile and produced chemokines. Moreover, LPC promoted neutrophil migration and enhanced their inflammatory profile. Conclusions: Here we report for the first time the gene expression signature of DR in AH and its association with disease progression. Functional and experimental analysis demonstrates that DR cells have a pro-inflammatory profile, and suggest their involvement in neutrophil recruitment and liver inflammatory response.
Publication Title
Ductular Reaction Cells Display an Inflammatory Profile and Recruit Neutrophils in Alcoholic Hepatitis.
Sample Metadata Fields
Sex, Age, Specimen part, Disease, Disease stage, Cell line, Treatment, Race
View Samples- Homo sapiens
- 8 Downloadable Samples
- Affymetrix Human Genome U219 Array (hgu219)
Description
Objective: Alcoholic hepatitis (AH) is characterized by the expansion of ductular reaction (DR) cells and expression of liver progenitor cell (LPC) markers. The aim of this study was to identify the gene expression profile and associated genes of DR cells and to evaluate its weight in alcoholic disease progression. Design: KRT7+, KRT7- and total liver fractions were laser microdissected from liver biopsies (n=6) of patients with AH and whole transcriptome was sequenced. Gene signature was assessed in transcriptomic data from 41 patients with alcoholic liver disease. Pro-inflammatory profile was evaluated in tissue and serum samples and in human LPC organoids. Results: Transcriptome analysis of KRT7+ DR cells uncovered intrinsic gene pathways of DR and allowed identifying genes associated with DR expressed in AH. In addition, DR gene signature and associated genes correlated with disease progression and poor outcome in AH patients. Importantly, DR presented a pro-inflammatory profile with expression of CXC and CCL chemokines and was associated with infiltrating neutrophils. Moreover, LPC markers correlated with liver expression and circulating levels of inflammatory mediators. In vitro, human LPC organoids mimicked ductular reaction gene expression profile and produced chemokines. Moreover, LPC promoted neutrophil migration and enhanced their inflammatory profile. Conclusions: Here we report for the first time the gene expression signature of DR in AH and its association with disease progression. Functional and experimental analysis demonstrates that DR cells have a pro-inflammatory profile, and suggest their involvement in neutrophil recruitment and liver inflammatory response.
Publication Title
Ductular Reaction Cells Display an Inflammatory Profile and Recruit Neutrophils in Alcoholic Hepatitis.
Sample Metadata Fields
Specimen part
View Samples- Saccharomyces cerevisiae
- 6 Downloadable Samples
- Affymetrix Yeast Genome 2.0 Array (yeast2)
Description
the nuclear pore complex (NPC) is emerging as an important mediator of cellular processes beyond molecule transport, including control of gene expression, replication and DNA repair.
Publication Title
The Nup84 complex coordinates the DNA damage response to warrant genome integrity.
Sample Metadata Fields
No sample metadata fields
View Samples- Saccharomyces cerevisiae
- 17 Downloadable Samples
- Affymetrix Yeast Genome S98 Array (ygs98)
Description
Physiological effects of carbon dioxide and impact on genome-wide transcript profiles were analysed in chemostat cultures of Saccharomyces cerevisiae. In anaerobic, glucose-limited chemostat cultures grown at atmospheric pressure, cultivation under CO2-saturated conditions had only a marginal (<10%) impact on the biomass yield. Conversely, a 25% decrease of the biomass yield was found in aerobic, glucose-limited chemostat cultures aerated with a mixture of 79% CO2 and 21% O2. This observation indicated that respiratory metabolism is more sensitive to CO2 than fermentative metabolism. Consistent with the more pronounced physiological effects of CO2 in respiratory cultures, the number of CO2-responsive transcripts was higher in aerobic cultures than in anaerobic cultures. Many genes involved in mitochondrial functions showed a transcriptional response to elevated CO2 concentrations. This is consistent with an uncoupling effect of CO2 and/or intracellular bicarbonate on the mitochondrial inner membrane. Other transcripts that showed a significant transcriptional response to elevated CO2 included NCE103 (probably encoding carbonic anhydrase), PCK1 (encoding PEP carboxykinase) and members of the IMD gene family (encoding isozymes of inosine monophosphate dehydrogenase
Publication Title
Physiological and genome-wide transcriptional responses of Saccharomyces cerevisiae to high carbon dioxide concentrations.
Sample Metadata Fields
No sample metadata fields
View Samples