Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA158943 | ENA |
REPOSITORIES: ENA
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Project description:RIP-Chip analysis of Musashi (Msi1) in the Daoy human medulloblastoma cell line.
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Project description:To understand the function of MSI1 in pluripotent stem cells, RNA-seq assays were performed on mouse embryonic stem cells R1, MSI1 knockout cell line R1-C5, human embryonic stem cells H9, RRM knockout cell line H9-C8, MSI1 full-length overexpression cell line H9-MSI1OE, MSI1C variant overexpression cell line H9-MSI1 (138-362) OE , H9-MSI1(272-362)OE. RNA bound by MSI1 in R1 and H9, and MSI1C variants MSI1 (138-362), MSI1(272-362) were detected using RIP-seq.
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Project description:RIP-Chip analysis of Msi1 and identification of preferentially associated mRNAs. Keywords: RIP-Chip
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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.
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Project description:RIP-chip analysis to identify mRNA preferentially associated with Msi1 protein.
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Project description:Musashi1 (Msi1) is a highly conserved RNA binding protein that is required during the development of the nervous system. Msi1 has a role in neural stem cells, controlling the balance between self-renewal and differentiation. Msi1 has also been implicated in cancer, being highly expressed in multiple tumor types. In this study, we analyzed Msi1 expression in a large cohort of medulloblastoma samples and showed that Msi1 is highly expressed in tumor tissue compared to normal cerebellum and that high Msi1 expression is associated with a poor prognosis. Using a nude mouse xenograft model, we demonstrate that Msi1 is important for tumor growth. We then used RIP-chip (ribonucleoprotein immunoprecipitation followed by microarray analysis) to identify mRNA targets of Msi1 in medulloblastoma. In conclusion, our results suggest that Msi1 functions as a regulator of multiple processes in medulloblastoma formation and could become an important therapeutic target. RIP-Chip analysis to identify mRNA preferentially associated with Msi1 protein. RIP-Chip experiments were performed on two biologically replicated samples. A total of 8 microarrays were carried on using technical replicates of Msi1 antibody vs. prebleed serum for each dye orientation. We prepared two biological replicates for two different arrays. Each array consisted of 4 microarrays with 2 replicates for each dye orientation.
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Project description:Transcripts regulated by Musashi-1 (MSI1) are explored through shRNA-mediated knockdown of MSI1 in SU_MB002 medulloblastoma cells.
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Project description:Overexpression of miR-31 inhibits the migration and invasion ability of glioma cell. We sought to obtain the genes regulated by mir-31 in glioma cell line. The gene expression of U251-mir-31 (U251 over expressing mir-31) and U251-control. U251-Control and U251-mir-31 cells were cultured in DMEM cell culture media for RNA extraction and hybridization on Affymetrix.GeneChip.HG-U133_Plus_2.
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Project description:Glioma stem cells (GSCs) have been identified in glioma tissues and suggested to play important roles in the tumorigenesis of glioblastoma multiform (GBM). We established a novel cellular bioinformative pipeline that consisted of principal component analysis (PCA) with factor loading, intracellular pathway analysis, and immunopathway analysis and attempted to clarify the differences in gene expression profiles comprehensively among GSCs, a glioma cell line (U251), and a human GBM tissue (hGBM). To this end, we extracted total RNAs from the GSCs, U251, and the hGBM, performed microarray, and applied the data to the bioinformatics analyses described above. As the results, PCA clearly distinguished the three groups. Moreover, the second principal component (PC2) distinguished the GSCs from the hGBM and U251; it reflected the characteristics of stemness. The factor loading for PC2 suggested MYCN, DPP4, and, MIF as contributing factors to the stemness of GSCs. We clarify the similarities and differences among samples such as the GSCs, U251, and hGBM.
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