Expression profiling of resting B cells to classify active and silent genes based on expression levels Overall design: 4 biological replicates of mRNA extracted from freshly purified mouse CD43 negative resting B cells
The aurora B kinase and the polycomb protein ring1B combine to regulate active promoters in quiescent lymphocytes.
Specimen part, Cell line, Subject
View SamplesEctopic expression of the transcription factors Oct4, Sox2, Klf4 and c-Myc (OSKM) can reprogram somatic cells into induced pluripotent stem cells (iPSCs). These iPSCs are highly similar to embryonic stem cells and can be used for regenerative medicine, drug screening and disease modelling. Despite recent advances, reprogramming is a slow and inefficient process. This suggests that there are several safeguarding mechanisms to counteract cell fate conversion. Cellular senescence is one of these barriers, which is mediated through activation of the tumour suppressors p53/p21CIP1, p15INK4b and p16INK4a. In this study, we have screened for shRNAs blunting reprogramming-induced senescence. We integrated single-cell RNA sequencing (scRNA-Seq) with shRNA screening to investigate the mechanism of action of the identified candidates. Overall design: 376 samples: 280 IMR90 cells expressing OSKM and shRNA library derived from the shRNA screen (bypassing senescence), 64 OSKM-expressing IMR90 cells (senescent), 32 IMR90 cells expressing control vector
Coupling shRNA screens with single-cell RNA-seq identifies a dual role for mTOR in reprogramming-induced senescence.
Specimen part, Subject
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Genome-wide identification of Ikaros targets elucidates its contribution to mouse B-cell lineage specification and pre-B-cell differentiation.
Specimen part, Cell line
View SamplesIkaros family DNA binding proteins are critical regulators of B cell development. To identify Ikaros-regulated genes in pre-B cells we performed gene expression studies at enhanced temporal resolution.
Genome-wide identification of Ikaros targets elucidates its contribution to mouse B-cell lineage specification and pre-B-cell differentiation.
Specimen part, Cell line
View SamplesIkaros family DNA binding proteins are critical regulators of B cell development. To identify Ikaros-regulated genes in primary pre-B cells we performed gene expression microarrays.
Genome-wide identification of Ikaros targets elucidates its contribution to mouse B-cell lineage specification and pre-B-cell differentiation.
Specimen part
View SamplesmiRNA regulate gene expression at the post-transcriptionnal level. To gain further insight into this process, we analysed by Affymetrix microarray, the transcriptome of Dicer WT or Dicer deleted mouse CD4 T cells.
microRNA-mediated regulation of mTOR complex components facilitates discrimination between activation and anergy in CD4 T cells.
Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
MicroRNAs of the miR-290-295 Family Maintain Bivalency in Mouse Embryonic Stem Cells.
Specimen part
View SamplesThe protein Dicer is required for microRNA (miRNA) biogenesis. Dicer-deficient cells therefore lack almost all mature, functional miRNAs. We investigated the role of miRNAs in regulation of gene expression in mouse
MicroRNAs of the miR-290-295 Family Maintain Bivalency in Mouse Embryonic Stem Cells.
Specimen part
View SamplesSenescence can be transmitted in a paracrine way from cells undergoing Oncogene Induced Senescence (OIS) to nave normal cells. We define this phenomenon as paracrine senescence
A complex secretory program orchestrated by the inflammasome controls paracrine senescence.
Specimen part, Cell line
View SamplesRegeneration of transgenic cells remains a major obstacle to research and commercial deployment of transgenic plants for most species.
Genome scale transcriptome analysis of shoot organogenesis in Populus.
Sex
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