GEO DataSets

(Submitter supplied) We report the physiological role of ATF4 within mouse liver, under basal and ER stress conditions. With three mice per group, and approximately 30 million reads per sample, we obtained genome-wide role of ATF4 within the liver. We find ATF4 is responsible for a small subset of ER stress genes, and larger than previously thought basal subset.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

12 Samples

Download data: TXT

(Submitter supplied) Disruptions of the endoplasmic reticulum (ER) that perturb protein folding cause ER stress and elicit an unfolded protein response (UPR) that involves translational and transcriptional changes in gene expression aimed at expanding the ER processing capacity and alleviating cellular injury. Three ER stress sensors PERK, ATF6, and IRE1 implement the UPR. PERK phosphorylation of eIF2 during ER stress represses protein synthesis, which prevents further influx of ER client proteins, along with preferential translation of ATF4, a transcription activator of the integrated stress response. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

14 Samples

Download data: CEL, CHP

(Submitter supplied) Disruption of protein folding in the endoplasmic reticulum triggers the Unfolded Protein Response (UPR), a transcriptional and translational control network designed to restore protein homeostasis. Central to the UPR is PERK phosphorylation of the alpha subunit of eIF2 (eIF2~P), which represses global translation coincident with preferential translation of mRNAs, such as ATF4 and CHOP, that serve to implement the UPR transcriptional regulation. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

21 Samples

Download data: CEL

(Submitter supplied) RNA sequencing on LNCaP cells was carried out to study how tunicamycin-induced gene expression is affected by knockdown of EIF2AK3 and ATF4.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18573

28 Samples

Download data: TXT

(Submitter supplied) We report the direct target genes of ATF4 and CHOP in response to endoplasim reticulum stress through next generation sequencing. By obtaining genowide sequence from chromatin immunoprecipitated DNA with anti-CHOP and anit-ATF4, we identified direct binding sites of ATF4 and CHOP in promoter regions of their target genes in mouse embrynic fibroblasts (MEFs) in response to ER stress. In addition, we obtained list of genes which are differentially regulated in Atf4 or Chop-deficient MEFs compared to the wild-type MEFs in response to ER stress. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9185

10 Samples

Download data: BEDGRAPH, RPKM

(Submitter supplied) To characterize the nature of the unfolded protein response in this Toxoplasma, we carried out microarray analyses to measure the changes in the transcriptome and in translational control during ER stress.

Organism:

Toxoplasma gondii

Type:

Expression profiling by array

Platform:

GPL16542

18 Samples

Download data: CEL, CHP

(Submitter supplied) The UPR (Unfolded Protein Response) is a well-orchestrated response to ER protein folding and processing overload, integrating both transcriptional and translational outputs. Its three arms in mammalian cells, the PERK translational response arm, together with the ATF6 and IRE1-mediated transcriptional arms, have been thoroughly investigated. Using ribosome footprint profiling, we performed a deep characterization of the gene expression programs involved in the acute and adaptive ER stress responses. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

13 Samples

Download data: TXT

(Submitter supplied) Translational profiling of RAW264.7 cells stimulated with LPS in the presence and absence of 125ng/ml mycolactone: polysomal and subpolysomal RNA isolated by sucrose gradient centrifugation to determine the effect of mycolactone on translation during a proinflammatory response

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10333

6 Samples

Download data: TXT

(Submitter supplied) Expression of the transcription factor CEBPD is induced at early stages of the endoplasmic reticulum (ER) stress response. In order to identify the genes modulated by CEBPD during the ER stress response, we transiently silenced CEBPD expression in MDA-MB-435 melanoma cells and isolated mRNA at 6 h of treatment with Thapsigargin or DMSO control. As control, cells were transfected with two different control siRNA oligonucleotides. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16791

24 Samples

Download data: TAB

(Submitter supplied) We obtained transcriptional profiles of third instar eye imaginal disc nuclei with or without endoplasmic reticulum stress using next generation sequencing (NGS). We employed an isolation of nuclei tagged in specific cell type (INTACT) protocol (Ma and Weake, J. of Vis. Exp., 2014) to label nuclear membranes of GMR-GAL4-expressing cells with EGFP. The experimental group also expressed a mutant allele of the membrane visual protein rhodopsin (Rh-1(G69D)), which is known to cause endoplasmic reticulum stress and initiate Unfolded Protein Response (UPR) signaling. more...

Organism:

Drosophila melanogaster

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25244

6 Samples

Download data: CSV

(Submitter supplied) Comprehensive understanding of the transcriptional foundations of human intestinal ischemia-reperfusion (IR) injury is imperative to find therapeutic targets and improve patient outcome. Here we analysed transcriptomes of the IR-injured human intestine, and showed that over 1,800 genes were significantly differentially expressed, predominantly during reperfusion. Intriguingly, protein processing in endoplasmic reticulum (ER) was one of the most perturbed pathways, which was supported by ontology analysis. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6947

28 Samples

Download data: TXT

(Submitter supplied) Pancreatic beta-cell dysfunction and eventual beta-cell loss are key steps in the course of type 2 diabetes (T2D). Endoplasmic reticulum (ER) stress, in particular the PERK-ATF4 pathway, has been implicated in promoting these beta-cell pathologies. However, the exact molecular events surrounding the PERK-ATF4 pathway in beta-cell dysfunction remain unknown. Here, we discovered that ATF4 transcriptionally promotes expression of PDE4D, which results in beta-cell dysfunction via downregulation of cAMP signaling. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24247

8 Samples

Download data: TXT

(Submitter supplied) In liver, the anti-leukemic agent asparaginase (ASNase) increases phosphorylation of eukaryotic initiation factor 2 by general control nonderepressible 2 (GCN2) kinase. This event promotes gene-specific translation of activating transcription factor 4 (ATF4) which alters gene expression in response to amino acid depletion. The objective of this study was to investigate the role of GCN2 versus ATF4 in controlling the global transcriptome to ASNase in liver. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

18 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Expression profiling by array

Platforms:

GPL6246 GPL1261

32 Samples

Download data: CEL, CHP

(Submitter supplied) Environmental stresses that disrupt protein homeostasis induce phosphorylation of eIF2, triggering repression of global protein synthesis coincident with preferential translation of ATF4, a transcriptional activator of the Integrated stress response (ISR). Depending on the extent of protein disruption, ATF4 may not be able to restore proteostatic control and instead switch to a terminal outcome that features elevated expression of the transcription factor CHOP (GADD153/DDIT3). more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

16 Samples

Download data: CEL

(Submitter supplied) Environmental stresses that disrupt protein homeostasis induce phosphorylation of eIF2, triggering repression of global protein synthesis coincident with preferential translation of ATF4, a transcriptional activator of the Integrated stress response (ISR). Depending on the extent of protein disruption, ATF4 may not be able to restore proteostatic control and instead switch to a terminal outcome that features elevated expression of the transcription factor CHOP (GADD153/DDIT3). more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

16 Samples

Download data: CEL, CHP

(Submitter supplied) T cell undergoes ER stress during regular priming which may lead to T cell dysfunction in cancer. ER stress downstream sensor Chop (encoded by Ddit3 gene) negatively regulates CD8 T cell function and cytotoxicity. Because Chop is a C/EBP homologous transcription factor, we sorted antigen-primed wildtype or ddit3-/- Pmel CD8 T cells perform RNA-seq and gene expression profile analysis.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19057

5 Samples

Download data: CSV

(Submitter supplied) The tumor microenvironment is characterized by low glucose and hypoxia. It is well known that changes in the tumor microenvironment, such as hypoxia and low glucose, can increase the production of VEGF. Although the role of hypoxia in the regulation of VEGF production is well understood, the mechanism linking glucose deprivation (GD) to tumor growth and angiogenesis is unclear. Here, GD (a physiological stimulus) was used to treat human tumor cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

3 Samples

Download data: CEL

(Submitter supplied) Adult T-cell Leukemia (ATL) is a highly chemoresistant malignancy of peripheral T lymphocytes, associated with retrovirus human T-cell leukemia virus type I (HTLV-1). To elucidate the complex molecular mechanism of anti-Growth effect of the HIV integrase inhibitor, MK-2048 in ATL cells, we attempted to perform gene expression profiling.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL23159

24 Samples

Download data: CEL

(Submitter supplied) In previous studies, we identified a distantly related rhomboid homologue gene known as RHBDD2 (Rhomboid domain containing 2) to be markedly overexpressed in the advanced stages of the breast and colorectal cancer diseases. In order to identify RHBDD2 modulated pathways, we analyzed two breast cancer cell lines (MCF7 and T47D) from control and RHBDD2-siRNA transient gene silencing followed by gene expression profiling analysis using the whole genome Toray 3D-GeneTM Human Oligo Chip. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL13915

8 Samples

Download data: TXT