This is to compare the gene expression profile of Th1 and Th17 cells.
Late developmental plasticity in the T helper 17 lineage.
No sample metadata fields
View SamplesRationale: The Id1 and Id3 genes play major roles during cardiac development, despite their expression being confined to non-myocardial layers (endocardium endothelium - epicardium). We previously described that Id1/Id3/ double knockout (dKO) mouse embryos die at mid-gestation from multiple cardiac defects, but early demise precluded the studies of the roles of Id in the adult mice.
Developmental ablation of Id1 and Id3 genes in the vasculature leads to postnatal cardiac phenotypes.
Age, Specimen part
View SamplesDuchenne muscular dystrophy (DMD) is an incurable neuromuscular degenerative disease, caused by a mutation in the dystrophin gene. Mdx mice recapitulate DMD features. Here we show that injection of wild-type (WT) embryonic stem cells (ESCs) into mdx blastocysts produces mice with improved pathology. A small fraction of WT ESCs incorporates into the mdx mouse nonuniformly to upregulate protein levels of dystrophin in the skeletal muscle. The chimeric muscle shows reduced regeneration and restores dystrobrevin, a dystrophin-related protein, in areas with high and with low dystrophin content. WT ESC injection also normalizes the amount of fat, a tissue that does not express dystrophin. ESC injection without dystrophin does not prevent the appearance of phenotypes in the skeletal muscle or in the fat. Thus, dystrophin supplied by the ESCs reverses disease in mdx mice globally.
Blastocyst injection of wild type embryonic stem cells induces global corrections in mdx mice.
No sample metadata fields
View SamplesCCR6+ innate lymphoid cells were sorted from the mesenteric lymph node of nave C57BL/6 mice
Immune tolerance. Group 3 innate lymphoid cells mediate intestinal selection of commensal bacteria-specific CD4⁺ T cells.
Specimen part
View SamplesPhysiological, anatomical, and clinical laboratory analytic scoring systems (APACHE, Injury Severity Score (ISS)) have been utilized, with limited success, to predict outcome following injury. We hypothesized that a peripheral blood leukocyte gene expression score could predict outcome, including multiple organ failure, following severe blunt trauma.
A genomic score prognostic of outcome in trauma patients.
Sex, Age
View Samplesexpression files supporting: Application of genome-wide expression analysis to human health and disease. PNAS
Application of genome-wide expression analysis to human health and disease.
No sample metadata fields
View SamplesGenetically encoded unnatural amino acids provide powerful strategies for modulating the molecular functions of proteins in mammalian cells. However this approach has not been coupled to genome-wide measurements, because efficient unnatural amino acid incorporation is limited to readily transfectable cells and leads to very heterogeneous expression. We demonstrate that rapid piggybac integration of the orthogonal pyrrolysyl-tRNA synthetase (PylS)/tRNAPyl CUA pair (and its derivatives) into the mammalian genome enables efficient, homogeneous unnatural amino acid incorporation into target proteins in diverse cells, and we reveal the distinct transcriptional responses of ES cells and MEFs to amber suppression. Genetically encoding Ne-acetyl-lysine in place of six lysine residues in histone H3, that are known to be post-translationally acetylated, enables deposition of pre-acetylated histones into cellular chromatin, via a synthetic pathway that is orthogonal to enzymatic modification, allowing us to determine the consequences of acetylation at specific amino acids in histones on gene expression. Overall design: mRNA was sequenced using polyA-enrichment and Truseq library preparation protocol. Two biological replicates were sequences for each cell line and condition
Genetic code expansion in stable cell lines enables encoded chromatin modification.
Cell line, Subject
View SamplesThyroid hormone has a positive effect on endochondral bone growth. Few studies have looked at the interaction between thyroid hormone exposures and intramembranous bone derived cells. We used microarray as one tool to determine the gene expression profile of intramembranous (calvarial) derived murine pre-osteoblsts after thyroxine exposure.
Effects of thyroxine exposure on osteogenesis in mouse calvarial pre-osteoblasts.
Specimen part, Cell line
View SamplesEndogenous retroviruses (ERVs) have provided an evolutionary advantage in the diversification of transcript regulation and are thought to be involved in the establishment of extraembryonic tissues during development. However, silencing of these elements remains critical for the maintenance of genome stability. Here, we define a new chromatin state that is uniquely characterized by the combination of the histone variant H3.3 and H3K9me3, two chromatin ‘marks’ that have previously been considered to belong to fundamentally opposing chromatin states. H3.3/H3K9me3 heterochromatin is fundamentally distinct from ‘canonical’ H3K9me3 heterochromatin that has been under study for decades and this unique functional interplay of a histone variant and a repressive histone mark is crucial for silencing ERVs in ESCs. Our study solidifies the emerging notion that H3.3 is not a histone variant associated exclusively with “active” chromatin and further suggests that its incorporation at unique heterochromatic regions may be central to its function during development and the maintenance of genome stability. Overall design: RNA-seq analysis of three embryonic stem cell lines WT, H3.3 KO1, and H3.3 KO2)
Histone H3.3 is required for endogenous retroviral element silencing in embryonic stem cells.
No sample metadata fields
View SamplesGene expression analysis under normal culture conditions (RPMI-10%FBS) and at optimal cell densities.
Low-risk susceptibility alleles in 40 human breast cancer cell lines.
Cell line
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