Human ESCs are pluripotent cells that have the capacity of self renewal for a prolonged period in vitro, and can differentiate into derivatives of all three primary germ layers: endoderm, mesoderm and ectoderm. Human ESCs are responsive to a wide range of factors in vitro that can direct their differentiation into specific cell types. We analyzed the effect of nicotinamide (NIC) on differentiation of hESCs in vitro. CEL file for GSM424319 is unavailable.
Directed differentiation of human embryonic stem cells into functional retinal pigment epithelium cells.
Specimen part, Treatment
View SamplesTo understand the funtion of Colorectal cancer GWAS results, we perform a comprehensive analysis using biofeatures of HCT116 colon cancer cell line and got a list of risk-asscociated SNP. Risk-associated SNP are likely exerting their effects through promoters or enhancer. In order to understand the importance of the genes with risk-associated SNP in their promoters and enhancers'' putatively targeted genes, we did a comparison of these genes between HCT116 colon cancer cell and normal colon and try to understand their function Overall design: Two biological replicates of HCT116 were compared to the data of two normal colon samples already deposited in GEO (GSM1010974 and GSM1010942).
Functional annotation of colon cancer risk SNPs.
No sample metadata fields
View SamplesCells undergoing malignant transformation often shift their cellular metabolism from primarily oxidative phosphorylation to aerobic glycolysis (the Warburg effect). Energy restriction-mimetic agents (ERMAs), such as 2-deoxyglucose and resveratrol, that target this shift in cellular metabolism have been effective in inhibiting cancer cell growth in vitro, and xenograft tumor growth in vivo.
Suppression of prostate epithelial proliferation and intraprostatic progrowth signaling in transgenic mice by a new energy restriction-mimetic agent.
Specimen part
View SamplesAscorbate activates CD30 expression and causes widespread specific demethylation of the epigenome of serum free cultured hESC.
Vitamin C promotes widespread yet specific DNA demethylation of the epigenome in human embryonic stem cells.
Age, Specimen part
View SamplesGranulocyte-monocyte progenitors (GMPs) and monocyte-dendritic cell progenitors (MDPs) produce monocytes during homeostasis and in response to increased demand during infection. Both progenitor populations are thought to derive from common myeloid progenitors (CMPs), and a hierarchical relationship (CMP-GMP-MDP-monocyte) is presumed to underlie monocyte differentiation. Here, however, we demonstrate that mouse MDPs arose from CMPs independently of GMPs, and that GMPs and MDPs produced monocytes via similar, but distinct, monocyte-committed progenitors. GMPs and MDPs yielded classical (Ly6Chi) monocytes with gene expression signatures that were defined by their origins and impacted their function. GMPs produced a subset of “neutrophil-like” monocytes, whereas MDPs gave rise to a subset of monocytes that yielded monocyte-derived dendritic cells. GMPs and MDPs were also independently mobilized to produce specific combinations of myeloid cell types following the injection of microbial components. Thus, the balance of GMP and MDP differentiation shapes the myeloid cell repertoire during homeostasis and following infection. Overall design: RNA-seq of myeloid progenitors and Ly6Chi monocytes from mouse bone marrow. 4 progenitor fractions (GMPs, MDPs, GPs and a mixed fraction of MPs + cMoPs) were isolated from the pooled bone marrow of 20 mice. GMPs and MDPs were also cultured in vitro and the monocyte-committed progenitors and Ly6Chi monocytes they produced were also harvested. RNA was extracted from the 4 ex vivo progenitor fractions, and the 4 populations derived in vitro (GMP-derived monocyte progenitors = MP; MDP-derived monocyte progenitors = cMoP; GMP-derived Ly6Chi monocytes = G-mono; MDP-derived Ly6Chi monocytes = M-mono). The whole process was repeated using 20 additional mice to obtain a replicate set of samples.
Granulocyte-Monocyte Progenitors and Monocyte-Dendritic Cell Progenitors Independently Produce Functionally Distinct Monocytes.
Specimen part, Cell line, Subject
View SamplesEnvironmental enrichment (EE) replicates mind-body therapy by providing complex housing to laboratory animals to improve their activity levels, behavior and social interactions. Using a Tcf4Het/+ ApcMin/+-mediated model of colon tumorigenesis, we found that EE vastly improved the survival of tumor-bearing animals, with differential effect on tumor load in male compared to female animals. Analysis of Tcf4Het/+ ApcMin/+ males showed drastically reduced expression of circulating inflammatory cytokines and induced nuclear hormone receptor signaling, both of which are common in the wound repair process. Interestingly, EE provoked tumor wound repair resolution through revascularization, plasma cell recruitment and IgA secretion, replacement of glandular tumor structures with pericytes in a process reminiscent of scarring, and normalization of microbiota. These EE-dependent changes likely underlie the profound improvement in survival of colon-tumor-bearing Tcf4Het/+ ApcMin/+ males. Our studies highlight the exciting promise of EE in the design of future therapeutic strategies for colon cancer patients. Overall design: Four samples from EE and NE (non-enriched controls) were analyzed
Environmental Enrichment Induces Pericyte and IgA-Dependent Wound Repair and Lifespan Extension in a Colon Tumor Model.
Specimen part, Subject
View SamplesThe entorhinal cortex of the mouse seems to be sensitive to molecular mechanisms that have been linked to the pathology of Alzheimer's disease. In this microarray study we are interested in comparing the expression profile of the left versus the right EC of the mouse, in order to understand if there is a significant difference in gene expression that might reveal any insights into the differential activation of these areas.
Molecular drivers and cortical spread of lateral entorhinal cortex dysfunction in preclinical Alzheimer's disease.
Age, Specimen part
View SamplesComplement receptor 2negative (CR2/CD21) B cells have been found enriched in patients with autoimmune diseases and in common variable immunodeficiency (CVID) patients who are prone to autoimmunity. However, the physiology of CD21/lo B cells remains poorly characterized. We found that some rheumatoid arthritis (RA) patients also display an increased frequency of CD21/lo B cells in their blood. A majority of CD21/lo B cells from RA and CVID patients expressed germline autoreactive antibodies, which recognized nuclear and cytoplasmic structures. In addition, these B cells were unable to induce calcium flux, become activated, or proliferate in response to B-cell receptor and/or CD40 triggering, suggesting that these autoreactive B cells may be anergic. Moreover, gene array analyses of CD21/lo B cells revealed molecules specifically expressed in these B cells and that are likely to induce their unresponsive stage. Thus, CD21/lo B cells contain mostly autoreactive unresponsive clones, which express a specific set of molecules that may represent new biomarkers to identify anergic B cells in humans.
Complement receptor 2/CD21- human naive B cells contain mostly autoreactive unresponsive clones.
No sample metadata fields
View SamplesSexual dimorphism in mammals is mostly attributable to sex-related hormonal differences in fetal and adult tissues; however, this may not be the sole determinant. Though genetically-identical for autosomal chromosomes, male and female preimplantation embryos could display sex-specific transcriptional regulation which can only be attributted to the differences in sexual chromosome dosage.
Sex determines the expression level of one third of the actively expressed genes in bovine blastocysts.
Sex, Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Integrated transcriptomic and epigenomic analysis of primary human lung epithelial cell differentiation.
Sex, Specimen part, Time
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