Next Generation Sequencing Facilitates Quantitative Analysis of chromatin loci bound by DDX5 in cultured T helper 17 cell [ChIP-Seq]
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ABSTRACT: Purpose: The goals of this study are to identify chromatin loci bound by DDX5 in cultured T helper 17 cell in wildtype and DDX5 deficient background. Methods: ChIP-seq profiles of 48hrs in vitro cultured T helper 17 cells from wild-type mice were generated by deep sequencing, using Illumina HighSeq. The sequence reads that passed quality filters were mapped by Bowtie2.0. Results: DDX5 were found to be enriched on a subset of previously characterized RORgt occupied sites on the chromatin. Conclusions: Our study suggest that a subset of RORgt occupied regions were co-bound by DDX5.
Project description:Purpose: The goals of this study are to compare RNAs bound by DDX5 and RORgt in cultured T helper 17 cell in wildtype background. Methods: Th17 mRNA profiles of 48hrs in vitro cultured T helper 17 cells from wild-type mice were generated by deep sequencing, using Illumina HighSeq. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: BurrowsâWheeler Aligner (BWA) and TopHat followed by CuffDiff. qRTâPCR validation was performed using SYBR Green assays. Results: Among the 3444 RefSeq non-coding RNAs and 46449 NONCODE non-coding RNAs, 2533 were found to be expressed in Th17 cells (FPKM>1). 210 of them were enriched in DDX5 pull-down and 119 of them were enriched in RORgt pull-down. Conclusions: Our study suggest that a subset of 31 ncRNAs were co-enriched in DDX5 and RORgt pull-down. DDX5 or RORgt-associated-RNA profiles of 48hr in vitro cultured Th17 from wild type (WT) mice were generated by deep sequencing using Illumina HighSeq
Project description:Purpose: The goals of this study are to compare RNAs bound by DDX5 and RORgt in cultured T helper 17 cell in wildtype background. Methods: Th17 mRNA profiles of 48hrs in vitro cultured T helper 17 cells from wild-type mice were generated by deep sequencing, using Illumina HighSeq. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: Burrows–Wheeler Aligner (BWA) and TopHat followed by CuffDiff. qRT–PCR validation was performed using SYBR Green assays. Results: Among the 3444 RefSeq non-coding RNAs and 46449 NONCODE non-coding RNAs, 2533 were found to be expressed in Th17 cells (FPKM>1). 210 of them were enriched in DDX5 pull-down and 119 of them were enriched in RORgt pull-down. Conclusions: Our study suggest that a subset of 31 ncRNAs were co-enriched in DDX5 and RORgt pull-down.
Project description:Purpose: The goals of this study are to compare RNAs bound by DDX5 and RORgt in cultured T helper 17 cell in wildtype background. Methods: Th17 mRNA profiles of 48hrs in vitro cultured T helper 17 cells from wild-type mice were generated by deep sequencing, using Illumina HighSeq. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: Burrows–Wheeler Aligner (BWA) and TopHat followed by CuffDiff. qRT–PCR validation was performed using SYBR Green assays. Results: Among the 3444 RefSeq non-coding RNAs and 46449 NONCODE non-coding RNAs, 2533 were found to be expressed in Th17 cells (FPKM>1). 210 of them were enriched in DDX5 pull-down and 119 of them were enriched in RORgt pull-down. Conclusions: Our study suggest that a subset of 31 ncRNAs were co-enriched in DDX5 and RORgt pull-down.
Project description:Purpose: The goals of this study are to compare in vitro polarized T helper 17 cell transcriptome profiling (RNA-seq) in different genetic background. Methods: Th17 mRNA profiles of 96hrs in vitro cultured T helper 17 cells from wild-type and mutant mice were generated by deep sequencing, using Illumina RapidRun. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: BurrowsâWheeler Aligner (BWA) and TopHat followed by CuffDiff. qRTâPCR validation was performed using SYBR Green assays. Results: Among the 325 genes that were significantly dysregulated in DDX5-deficient T cells, approximately 40% were previously identified as RORγt targets in Th17 cells. 96 RORγt-dependent Th17 cell genes co-regulated by Rmrp together with DDX5. Conclusions: Our study suggest that the DDX5-Rmrp axis is critical for expression of a critical subset of the RORγt transcriptional targets in Th17 cells. mRNA profiles of 96hr in vitro cultured Th17 from wild type (WT) and mutant mice were generated by deep sequencing using Illumina RapidRun.
Project description:Purpose: The goals of this study are to compare in vitro polarized T helper 17 cell transcriptome profiling (RNA-seq) in different genetic background. Methods: Th17 mRNA profiles of 96hrs in vitro cultured T helper 17 cells from wild-type and mutant mice were generated by deep sequencing, using Illumina RapidRun. The sequence reads that passed quality filters were analyzed at the transcript isoform level with two methods: Burrows–Wheeler Aligner (BWA) and TopHat followed by CuffDiff. qRT–PCR validation was performed using SYBR Green assays. Results: Among the 325 genes that were significantly dysregulated in DDX5-deficient T cells, approximately 40% were previously identified as RORγt targets in Th17 cells. 96 RORγt-dependent Th17 cell genes co-regulated by Rmrp together with DDX5. Conclusions: Our study suggest that the DDX5-Rmrp axis is critical for expression of a critical subset of the RORγt transcriptional targets in Th17 cells.
Project description:Next Generation Sequencing Facilitates Quantitative Analysis of RNAs bound by DDX5 and RORgt in cultured T helper 17 cell [RIP-seq]
Project description:Next Generation Sequencing Facilitates Quantitative Analysis of RNAs bound by DDX5 and RORgt in cultured T helper 17 cell [ChIRP-Seq]
Project description:RNA helicases DDX5 and DDX17 are members of a large family of highly conserved proteins involved in gene expression regulation, although their in vivo targets and activities in biological processes like cell differentiation, that requires reprogramming of gene expression programs at multiple levels, are not well characterized. In this report, we uncovered a new mechanism by which DDX5 and DDX17 cooperate with hnRNP H/F splicing factors to define epithelial- and myoblast-specific splicing subprograms. We next observed that downregulation of DDX5 and DDX17 protein expression during epithelial to mesenchymal transdifferentiation and during myogenesis contributes to switching splicing programs during these processes. Remarkably, this downregulation is mediated by the production of microRNAs induced upon differentiation in a DDX5/DDX17-dependent manner. Since DDX5 and DDX17 also function as coregulators of master transcriptional regulators of differentiation, we propose to name these proteins M-bM-^@M-^\master orchestratorsM-bM-^@M-^] of differentiation, that dynamically orchestrate several layers of gene expression. 6 samples of MCF7 cells exposed to different treatments were analyzed: 3 x siCTRLM-BM- ; 3 x si(DDX5-17) AND 6 samples of MCF10 cells exposed to different treatments were analyzed: 3 x siCTRLM-BM- ; 3 x si(DDX5-17)
Project description:Ddx5 inhibition in RN2 cells slows cell proliferation and induces apoptosis within 48-72hrs. The aim of this analysis was to gain insight into how Ddx5 inhibition causes this outcome by analyzing gene expression changes in RN2 cells that occur at early timepoints after Ddx5 inhibition that precedes the timepoint when RN2 proliferation/cell death becomes evident in tissue culture (72hrs after inhibition). Derivatives of RN2 AML cells were prepared that encode doxycycline-inducible expression of either of two different shRNAs targeting Ddx5 (shDdx5.1322 and shDdx5.2086) or a negative control shRNA that targets Renilla Luciferase (shRen.713). Six independent cultures of each derivative RN2 cell line (shDdx5.1322, shDdx5.2086, or shRen.713) were treated with doxycycline at timepoint 0 days to induce expression of the indicated shRNA in the RN2 cells. Each shRNA is co-expressed with dsRed in a doxycycline-induced manner and flow cytometry analysis indicated that doxycycline induced expression of dsRed and the shRNA in 70-to-80% of the cells in each culture. RNA was isolated from three independent cultures of each derivative RN2 cell line at either 24hrs and 48hrs after dpxycycline treatment. Therefore this study consists of 18 samples, sequencing results from biological triplicate samples of RN2-shDdx5.1322, RN2-shDdx5.2086, and RN2-shRen.713 at 24hrs post-doxycycline and sequencing results from biological triplicate samples of RN2-shDdx5.1322, RN2-shDdx5.2086, and shRen.713 at 48hrs post-doxycycline.
Project description:DDX5, or PLZF co-immunoprecipitation in lysates from cultured undifferentiated spermatogonia followed by identification of eluted proteins using mass spectrometry. IgG control IPs included.