By silencing of RALA, a downstream member of the RAS signal transduction pathway, we aimed to determine whether genes downstream of a mutated KRAS (codon 12 or 13) or a mutated BRAF can have significant functions in colorectal cancer carcinogenesis.
Effects of RAL signal transduction in KRAS- and BRAF-mutated cells and prognostic potential of the RAL signature in colorectal cancer.
Specimen part, Cell line, Treatment
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Epigenetic chromatin states uniquely define the developmental plasticity of murine hematopoietic stem cells.
Specimen part
View SamplesAn investigation of the global gene expression signatures of murine hematopoietic stem cell differentiation during steady state hematopoiesis.
Epigenetic chromatin states uniquely define the developmental plasticity of murine hematopoietic stem cells.
Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Dominant negative PPARγ promotes atherosclerosis, vascular dysfunction, and hypertension through distinct effects in endothelium and vascular muscle.
Specimen part
View SamplesPharmacological activation of the transcription factor PPAR gamma lowers blood pressure and improves glucose tolerance in humans. In contrast, naturally occurring mutations (e.g., P467L, V290M) in the ligand binding domain of PPAR gamma in humans leads to severe insulin resistance and early-onset hypertension. Experimental evidence, including whole genome expression profiling, suggests that these mutant versions of PPAR gamma act in a dominant negative manner. Because PPAR gamma is expressed in a variety of cell types and tissues, we generated a transgenic mouse model (SP467L) specifically targeting dominant negative PPAR gamma to the vascular smooth muscle cells in order to determine the action of PPAR gamma in the blood vessel independent of its systemic metabolic actions. In the data set provided herein, we examined the gene expression profile in thoracic aorta from SP467L mice and their control littermates using the Affymetrix Mouse Genome 430 2.0 array.
Dominant negative PPARγ promotes atherosclerosis, vascular dysfunction, and hypertension through distinct effects in endothelium and vascular muscle.
Specimen part
View SamplesPrimary pneumocytes from KRas;Atg5fl/+ and KRas;Atg5fl/fl littermates were cultured for 48 hours and infected with AdCre-GFP to induce expression of the KrasG12D oncogene and concomitant Atg5 deletion. The transcriptional profile of those cells was determined by mRNA sequencing and uncovered differential expression in cellular movement, inflammatory response and oxidative stress response. Overall design: Comparison of transcriptomes from KRas;Atg5fl/+ and KRas;Atg5fl/fl pneumocytes
A dual role for autophagy in a murine model of lung cancer.
Specimen part, Subject
View SamplesTranscriptional analysis of identified DRG subpopulations.
Scaling proprioceptor gene transcription by retrograde NT3 signaling.
Specimen part
View SamplesThe E2A transcription factors promote the development of thymus-seeding cells but it remains unknown whether these proteins play a role in T lymphocyte lineage specification or commitment. By examining E2A-dependent genes in developing T cells, we will address whether these proteins are involved in these processes.
E2A transcription factors limit expression of Gata3 to facilitate T lymphocyte lineage commitment.
Specimen part
View Sampleswe have investigated molecular and functional properties in early B-lineage cells from Pax-5 deficient animals crossed to a B-lineage restricted reporter mouse. Gene expression analysis of ex vivo isolated progenitor cells revealed that Pax-5 deficiency has a minor impact on Bcell specification.By comparison of gene expression patterns in ex vivo isolated Pax-5 and Ebf-1 deficient progenitors, it was possible to identify a set of B-cell restricted genes dependent of Ebf-1 but not Pax-5, supporting the idea that B-cell specification and commitment is controlled by distinct regulatory networks.
Single-cell analysis of early B-lymphocyte development suggests independent regulation of lineage specification and commitment in vivo.
Specimen part
View SamplesThymic iNKT cell development is divided into four stages (stage 0-3) that are characterised, in C57BL/6 mouse strain, by the differential expression of surface markers, such as CD24, CD44 and NK1.1. During transition from immature to mature iNKT cell subsets, gene expression is tightly regulated. Here, we used microarray analysis to detail the influence of the transcriptional regulator ID3 during iNKT cell maturation in the thymus.
Essential functions for ID proteins at multiple checkpoints in invariant NKT cell development.
Age, Specimen part
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