This SuperSeries is composed of the SubSeries listed below.
NRASG12V oncogene facilitates self-renewal in a murine model of acute myelogenous leukemia.
Specimen part
View SamplesMutant RAS oncoproteins activate signaling molecules that drive oncogenesis in multiple human tumors including acute myelogenous leukemia (AML). However, the specific function of these pathways in AML is unclear. To elucidate the downstream functions of activated NRAS in AML, we employed a murine model of AML harboring Mll-AF9 and NRASG12V. We found that NRASG12V enforced leukemia self-renewal gene expression signatures and was required to maintain an MLL-AF9 and MYB-dependent gene expression program. In a multiplexed analysis of RAS-dependent signaling intermediates, the leukemia stem cell compartment was preferentially sensitive to RAS withdrawal. Use of RAS-pathway inhibitors showed that NRASG12V maintained leukemia self-renewal through mTOR and MEK pathway activation, implicating these pathways as potential targets for cancer stem cell-specific therapies. Overall design: Primary leukemia cells harvested from spleens were sorted into immunophenotypic subpopulations (Mac-1High, Mac-1LowKit–Sca-1–, Mac-1LowKit+Sca-1–, and Mac-1LowKit+Sca-1+). RNA was extracted from this subpopulations of cells and submitted for RNA sequencing.
NRASG12V oncogene facilitates self-renewal in a murine model of acute myelogenous leukemia.
No sample metadata fields
View SamplesMutant RAS oncoproteins activate signaling molecules that drive oncogenesis in multiple human tumors including acute myelogenous leukemia (AML). However, the specific function of these pathways in AML is unclear. To elucidate the downstream functions of activated NRAS in AML, we employed a murine model of AML harboring Mll-AF9 and NRASG12V. We found that NRASG12V enforced leukemia self-renewal gene expression signatures and was required to maintain an MLL-AF9 and MYB-dependent gene expression program. In a multiplexed analysis of RAS-dependent signaling intermediates, the leukemia stem cell compartment was preferentially sensitive to RAS withdrawal. Use of RAS-pathway inhibitors showed that NRASG12V maintained leukemia self-renewal through mTOR and MEK pathway activation, implicating these pathways as potential targets for cancer stem cell-specific therapies.
NRASG12V oncogene facilitates self-renewal in a murine model of acute myelogenous leukemia.
Specimen part
View SamplesIn the exon array data set, gene level analysis was performed on HepG2 cells exposed to atorvastatin.
RNA-sequencing analysis of HepG2 cells treated with atorvastatin.
Cell line
View SamplesAnalysis of mRNA expression of influenza infected and uninfected pulmonary epithelial cells in vivo Overall design: Analysis of mRNA expression of influenza infected and uninfected pulmonary epithelial cells in vivo
Long-term survival of influenza virus infected club cells drives immunopathology.
No sample metadata fields
View SamplesTo assess the impact of AdV-VP55 mediated degredation of host miRNAs on the cellular transcriptome. Overall design: mRNA profiles of HEK 293T cells treated with type 5 Adeno vectors expressing either GFP or GFP-VP55 for 24 hours
microRNA Function Is Limited to Cytokine Control in the Acute Response to Virus Infection.
No sample metadata fields
View SamplesThe amygdala is a prominent region of the brain processing stress-related emotion and vigilance. Additionally it is known that the serotonergic system is strongly involved in stress response and adaptation. The serotonin transporter (5-HTT) as key regulator of serotonergic activity in the brain is associated with stress-related neuropsychiatric disorders as well as heightened trait anxiety/dysphoria and exaggerated response to fear and environmental stress in humans. Also 5-HTT knockout mice display increased anxiety- and depression-related behaviors, altered stress reactivity and stress-coping abilities, gene expression differences and altered dendritic morphology.
Effect of acute stressor and serotonin transporter genotype on amygdala first wave transcriptome in mice.
Sex, Specimen part, Treatment
View SamplesWe used RNA-seq to define the gene expression profiles of intestinal stem cells (ISCs) expanded in Matrigel, degradable poly(ethylene) glycol (PEG) and non-degradable PEG matrices. Comparison of mRNA profiles between ISCs grown in Matrigel and non-degradable PEG show no major differences in expression of gene related to stemness, proliferation and signaling via the Wnt and Notch pathways. These results also show that ISC cultured in degradable PEG matrices upregulate stress- and inflammation-related genes compared with cells expanded in non-degradable PEG matrices. Overall design: mRNA profiles of ISCs cultured in the three types of matrices for 4 days were generated in triplicate
Designer matrices for intestinal stem cell and organoid culture.
Subject
View SamplesThe biological features of ovarian cancer stem cells (OCSC) remain elusive, mainly because 1) most studies so far have focused on cell lines that recapitulate the human disease only to a limited extend; and 2) because the identification of OCSC has relied on markers inferred from different and unrelated tumor types. Our study has harnessed the intrinsic, stemness-related properties of OCSC to identify and isolate this cell subpopulation from primary cultures freshly established from high-grade serous ovarian cancer (HGSOC), the most common and aggressive from of the disease. In addition, OCSC were compared to stem cell-enriched cultures from fallopian tube epithelium, which is the most accredited tissue of origin for HGSOC. The transcriptomes of the two cell types were compared to infer genes differentially regulated in OCSC.
CD73 Regulates Stemness and Epithelial-Mesenchymal Transition in Ovarian Cancer-Initiating Cells.
Specimen part
View SamplesAnalysis of the genome wide response of wild type and two mutant arabidopsis thaliana seedlings to norflurazon
Signals from chloroplasts converge to regulate nuclear gene expression.
No sample metadata fields
View Samples