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Human glioma cell line T98G: BAP-PCBP2 RIP vs. BAP-GFP RIP (Control)

ABSTRACT: RIP-Chip analysis of PCBP2 and identification of preferentially associated mRNAs. T98G cells were transfected transiently with BAP-tagged constructs. BAP-tagged proteins were biotinylated in vivo by the co-transfected hBirA enzyme. RNPs were recovered via precipitation with Steptavidin-sepharose beads. Finally, RNAs were purified and analyzed on microarrays. BAP-GFP as control was used in three independent sets of experiments.

ORGANISM(S): Homo sapiens

PROVIDER: GSE44048 | GEO | 2013/07/24

SECONDARY ACCESSION(S): PRJNA188445

REPOSITORIES: GEO

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Human glioma cell line T98G: BAP-PCBP2 RIP vs. BAP-GFP RIP (Control)

Project description:RIP-Chip analysis of PCBP2 and identification of preferentially associated mRNAs. T98G cells were transfected transiently with BAP-tagged constructs. BAP-tagged proteins were biotinylated in vivo by the co-transfected hBirA enzyme. RNPs were recovered via precipitation with Steptavidin-sepharose beads. Finally, RNAs were purified and analyzed on microarrays. BAP-GFP as control was used in three independent sets of experiments. Two-condition experiment, BAP-PCBP2 vs. BAP-GFP cells. Biological replicates: 3 BAP-PCBP2 replicates, 3 BAP-GFP (Control) replicates

2013-07-24 | E-GEOD-44048 | biostudies-arrayexpress

Human glioma cell line T98G: BAP-PCBP2 RIP vs. BAP-GFP RIP (Control)

| S-ECPF-GEOD-44048 | biostudies-other

Homo sapiens

Project description:Human glioma cell line T98G: BAP-PCBP2 RIP vs. BAP-GFP RIP (Control)

| PRJNA188445 | ENA

Overall gene expression was evaluated in lnc CHASERR transfected human glioma T98G cells. The transcriptome of T98G cells transfected with sh-NC and sh-lnc CHASERR were compared.

Project description:We used high-throughput sequencing to analyse differentially expressed genes among human glioma cells T98G transfected with sh-lnc CHASERR.

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Gene expression profiling of WWOX-overexpressing glioblastoma T98G cells

Project description:The WWOX gene is known for its tumor suppressor character and seems to be one of the main cellular regulators of cell cycle and apoptosis. The aim of the study was to identify cellular pathways and biological processes influenced by WWOX in glioblastoma cells. Our experiment showed that in this type of cancer WWOX, beside cell cycle and apoptosis control, may be involved in metabolism, cytoskeleton structure and differentiation. T98G glioblastoma cells were stably transfected with WWOX cDNA. T98G cells transfected with an empty vector served as a control. Total mRNA was isolated to look for gene-expression differences induced by the WWOX overexpression.

2013-10-22 | E-GEOD-51481 | biostudies-arrayexpress

T98G growth arrest

Project description:Triplicate experiments from T98G cells under asynchronously growing, and growth arrest by serum deprivation and contact inhibition. Keywords: other

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The Poly(C)-binding protein Pcbp2 is essential for CD4+ T cell development and proliferation.

Project description:Defining the molecular mechanisms that impact T cell maturation and function is important because abnormalities in these processes can lead to immunodeficient states or autoimmunity. RNA-binding proteins (RBPs) have emerged as critical factors in thymopoiesis, immune cell lineage commitment and maintenance, and as modulators of immune responses. The RBP paralogs Pcbp1 and Pcbp2 are widely expressed in the innate and adaptive immune systems and are each essential for mouse development. Pcbp1 has been shown to prevent conversion of CD4+ effector T cells into Foxp3+ regulatory T cells (Treg), with loss of Pcbp1 resulting in increased Treg differentiation. To determine whether Pcbp2 also is required for CD4+ T cell development and function, we derived mice with conditional Pcbp2 deletion in CD4+ T cells and assessed their overall phenotype and proliferative responses to activating stimuli. We found that Pcbp2 is essential for CD4+ T conventional cell (Tconv) proliferation, working through regulation of CD4 receptor co-stimulatory signaling. In addition, our data demonstrate a clear association between Pcbp2 control of Runx1 exon 6 splicing in CD4+ T cells and a specific role for Pcbp2 in the maintenance of peripheral CD4+ lymphocyte population size. Pcbp2 deficiency in the CD4+ lineage did not impact Treg abundance in vivo or function in vitro. Last, we show that Pcbp2 function is required for optimal in vivo Tconv cell activation in a T cell adoptive transfer colitis model system. These data lead us to conclude that Pcbp2 is a critical regulator of T cell signaling and function in the CD4+ lineage.

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Expression data from human OC+BAP+ double positive versus OC-BAP- double negative cells

Project description:Subpopulation of circulating monocyte/macrophage lineage cells show a calcifying ability in vivo and in vitro. These cells may contribute to intimal calcification within atherosclerotic lesions and may have pathophysiological clinical and therapeutic implication in vascular disorders. Such cells express Osteocalcin (OC) and Bone Alkaline Phosphatase (BAP). We analysed the expression profile of human OC+BAP+ cells versus OC-BAP- cells

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RIP-Chip analysis of Musashi (Msi1) in the Daoy human medulloblastoma cell line.

Project description:RIP-chip analysis to identify mRNA preferentially associated with Msi1 protein. RIP-Chip experiments were performed on two biologically replicated samples transfected with the BAP-Msi1 construct and a control sample from cells transfected with the BAP-Control construct. A total of 8 microarrays were carried on using technical replicates of BAP-Msi1 vs. BAP-Control for each dye orientation.

2011-07-25 | E-GEOD-30904 | biostudies-arrayexpress

The Poly(C) binding protein Pcbp2, and its retrotransposed derivative Pcbp1, are independently essential to mouse development

Project description:RNA-binding proteins participate in a complex array of post-transcriptional controls essential to cell-type specification and somatic development. Despite their detailed biochemical characterizations, the degree to which each RNA-binding protein impacts on mammalian embryonic development remains incompletely defined and the level of functional redundancy among subsets of these proteins remains open to question. The poly-(C) binding proteins, Pcbp's (aCPs, hnRNPEs), are encoded by a highly conserved and broadly expressed gene family. The two major Pcbp isoforms, Pcbp2 and Pcbp1, are robustly expressed in a wide range of tissues and exert both nuclear and cytoplasmic controls over gene expression. Here we report that Pcbp1-null embryos are rendered nonviable in the peri-implantation stage. In contrast, Pcbp2-null embryos survive until mid-gestation at which time they undergo a loss in viability associated with cardiovascular and hematopoietic abnormalities. Adult mice heterozygous for either Pcbp1 or Pcbp2 null alleles display a mild and non-disruptive growth defect. These data reveal that Pcbp1 and Pcbp2 are individually essential for mouse embryonic development and post-natal growth, reveal a non-redundant in vivo role for Pcpb2 in hematopoiesis, and provide direct evidence that Pcbp1, a retrotransposed derivative of Pcpb2, has evolved essential function(s) in the mammalian genome. mRNA-seq on fetal liver tissue from 12.5 days post coitum. 4 replicates of WT and 3 replicates of PCBP2 Knockout

2015-11-05 | E-GEOD-72491 | biostudies-arrayexpress

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