Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA118963 | ENA |
REPOSITORIES: ENA
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Project description:Genome-wide analysis of SATB1 target genes in human T helper cells: ChIP-chip
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Project description:Special AT-rich binding protein 1 (SATB1) is a global chromatin organizer and a transcription factor induced by interleukin-4 (IL-4) during the early T helper 2 (Th2) cell differentiation. In this study, we investigated the role of SATB1 in T helper cell differentiation by performing ChIP-on-chip analysis of human cord blood CD4+ T cells cultured in Th1 and Th2 conditions. These results were combined with gene expression profiling results from human differentiating Th cells in which expression of SATB1 was downregulated by RNA interference (RNAi).Our results indicate that SATB1 regulates and is bound to sixty genes in primary human CD4+ T cells, including several IL-12 and/or IL-4 regulated factors, suggesting a role in the development or function of Th subtypes. Cross-linked chromatin obtained from human CD4+ T cells isolated from cord blood cultured in Th1 and Th2 conditions for 24 h was immunoprecipitated with anti-SATB1 antibody.
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2011-08-25 | GSE23936 | GEO
Project description:Special AT-rich binding protein 1 (SATB1) is a global chromatin organizer and a transcription factor induced by interleukin-4 (IL-4) during the early T helper 2 (Th2) cell differentiation. In this study, we investigated the role of SATB1 in T helper cell differentiation by performing ChIP-on-chip analysis of human cord blood CD4+ T cells cultured in Th1 and Th2 conditions. These results were combined with gene expression profiling results from human differentiating Th cells in which expression of SATB1 was downregulated by RNA interference (RNAi).Our results indicate that SATB1 regulates and is bound to sixty genes in primary human CD4+ T cells, including several IL-12 and/or IL-4 regulated factors, suggesting a role in the development or function of Th subtypes.
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Project description:Gene expression profiling of immortalized human mesenchymal stem cells with hTERT/E6/E7 transfected MSCs. hTERT may change gene expression in MSCs. Goal was to determine the gene expressions of immortalized MSCs.
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Project description:We have sequenced miRNA libraries from human embryonic, neural and foetal mesenchymal stem cells. We report that the majority of miRNA genes encode mature isomers that vary in size by one or more bases at the 3’ and/or 5’ end of the miRNA. Northern blotting for individual miRNAs showed that the proportions of isomiRs expressed by a single miRNA gene often differ between cell and tissue types. IsomiRs were readily co-immunoprecipitated with Argonaute proteins in vivo and were active in luciferase assays, indicating that they are functional. Bioinformatics analysis predicts substantial differences in targeting between miRNAs with minor 5’ differences and in support of this we report that a 5’ isomiR-9-1 gained the ability to inhibit the expression of DNMT3B and NCAM2 but lost the ability to inhibit CDH1 in vitro. This result was confirmed by the use of isomiR-specific sponges. Our analysis of the miRGator database indicates that a small percentage of human miRNA genes express isomiRs as the dominant transcript in certain cell types and analysis of miRBase shows that 5’ isomiRs have replaced canonical miRNAs many times during evolution. This strongly indicates that isomiRs are of functional importance and have contributed to the evolution of miRNA genes
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