We used microarrays to examine gene expression levels from 95 unrelated CEPH-Utah individuals 0, 2 or 6 hours after treatment with 10Gy of ionizing radiation.
Stress-induced changes in gene interactions in human cells.
Cell line, Treatment, Time
View SamplesWe used microarrays to examine gene expression levels from 131 unrelated CEPH-Utah grandparents with either DMSO or tunicamycin.
Stress-induced changes in gene interactions in human cells.
Cell line, Treatment, Time
View SamplesThe accumulation of unfolded or misfolded proteins in the endoplasmic reticulum (ER) results in the condition called ER stress which induces the unfolded protein response (UPR) which is a complex cellular process that includes changes in expression of many genes. Failure to restore homeostasis in the ER is associated with human diseases. To identify the underlying changes in gene expression in response to ER stress, we induced ER stress in human B-cells and then measured gene expression at 10 time-points. We followed up those results by studying cells from 60 unrelated people. We rediscovered genes that were known to play a role in ER stress response and uncovered several thousand genes that are not known to be involved. Two of these are VLDLR and INHBE which showed significant increase in expression following ER stress in B-cells and
Gene expression and genetic variation in response to endoplasmic reticulum stress in human cells.
Cell line, Subject, Time
View SamplesEpigenetic and genetic regulations are sometimes considered as separate mechanisms that influence gene expression and phenotypes. However, there are DNA sequence variants in epigenetic regulators that could affect gene regulation. The histone demethylase, KDM4C, promotes transcriptional activation by removing the repressive histone mark, tri-methylation of lysine 9 of histone H3 (H3K9me3), from its target genes. In this study, we uncovered cis-acting DNA sequence variants in KDM4C that contribute to individual differences in its expression. Utilizing this natural variation, we performed genetic analyses in B-cells in order to identify target genes that are regulated by KDM4C.
Natural variation in the histone demethylase, KDM4C, influences expression levels of specific genes including those that affect cell growth.
Specimen part
View SamplesJournal : Blood. 2009 Jul 9;114(2):469-77. Epub 2009 May 13.
Endothelial deletion of hypoxia-inducible factor-2alpha (HIF-2alpha) alters vascular function and tumor angiogenesis.
Specimen part
View SamplesWe carried out a high throughput analysis of insulin-induced kinase signaling pathways in primary fibroblasts from 35 unrelated individuals. We found that extensive individual variation exists in induction of various signaling pathways. ERK signaling displayed the greatest variation, which led to extensive variation in expression of downstream target genes.
Genetic variation in insulin-induced kinase signaling.
Specimen part, Subject
View SamplesComparative analysis can provide important insights into complex biological systems. As demonstrated in the accompanying paper, Translating Ribosome Affinity Purification (TRAP), permits comprehensive studies of translated mRNAs in genetically defined cell populations following physiological perturbations.
Application of a translational profiling approach for the comparative analysis of CNS cell types.
No sample metadata fields
View SamplesThe cellular heterogeneity of the brain confounds efforts to elucidate the biological properties of distinct neuronal populations.
No associated publication
No sample metadata fields
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Transcription factor Zeb2 regulates commitment to plasmacytoid dendritic cell and monocyte fate.
Specimen part, Treatment
View SamplesThe cellular heterogeneity of the brain confounds efforts to elucidate the biological properties of distinct neuronal populations.
A translational profiling approach for the molecular characterization of CNS cell types.
No sample metadata fields
View Samples