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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Jarid2, a Polycomb member and target of miR-155, regulates the fates of Th17 and Treg cells

ABSTRACT: Genome-wide analysis of Jarid2, Suz12, and c-Maf binding and H3K27me3 profiling in miR-155 KO and WT Th17 performed by ChIP-seq. We found that Jarid2 and c-Maf is differentially expressed in absence of miR-155 and they compete for binding to the Il22 promoter. We highlight targets of Jarid2 and Suz12 in miR-155 KO Th17 cells that are epigenetically silenced by increased H3K27me3 status. Furthermore, genome-wide analysis through Suz12 ChIP-exo in WT and Jarid2fl/fl;CD4cre Th17 reveals defects in PRC2 recruitment in abscence of Jarid2 that results in derepression of genes in Th17 cells. Thus, one main function of miR-155 is to curb epigenetic silencing by targeting Jarid2. Examination of Jarid2, Suz12, c-Maf binding and H3K27me3 changes in miR-155 KO and WT Th17.

ORGANISM(S): Mus musculus

SUBMITTER: GOKHUL KILARU

PROVIDER: E-GEOD-47528 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Jarid2, a Polycomb member and target of miR-155, regulates the fates of Th17 and Treg cells

Project description:Genome-wide analysis of Jarid2, Suz12, and c-Maf binding and H3K27me3 profiling in miR-155 KO and WT Th17 performed by ChIP-seq. We found that Jarid2 and c-Maf is differentially expressed in absence of miR-155 and they compete for binding to the Il22 promoter. We highlight targets of Jarid2 and Suz12 in miR-155 KO Th17 cells that are epigenetically silenced by increased H3K27me3 status. Furthermore, genome-wide analysis through Suz12 ChIP-exo in WT and Jarid2fl/fl;CD4cre Th17 reveals defects in PRC2 recruitment in abscence of Jarid2 that results in derepression of genes in Th17 cells. Thus, one main function of miR-155 is to curb epigenetic silencing by targeting Jarid2.

2014-06-01 | GSE47528 | GEO

miR-155 promotes Th17 development by targeting Jarid2

Project description:Genome-wide analysis was performed on microRNA 155+/+ and -/- Th17 cells to determine the differentially expressed transcripts that are regulated by miR-155. We found that Jarid2 was differentially expressed in absence of miR-155 and highlight the mechanism for the silencing of IL-22 by Jarid2 and PRC2 in miR-155-/- Th17 cells.

2014-10-12 | GSE37228 | GEO

SUZ12 immunoprecipitation followed by PRM of SUZ12 peptides to identify alternatively spliced isoforms of SUZ12 at the protein level.

Project description:Alternative splicing of SUZ12 exon 4 is predicted to generate two alternative isoforms differing by the inclusion or exclusion of 69 nucleotides in exon 4, which we named SUZ12-long (SUZ12-L) and SUZ12-short (SUZ12-S) respectively. At the protein level SUZ12 exon 4 encodes 23 amino acids (aa 129–152 in SUZ12-L) that partially overlap with the WD-binding domain 1 (WDB1, 110–145). To detect the existance of SUZ12-S at the protein levels we performed SUZ12 immunoprecipitation coupled with mass spectrometry (IP-MS) in the WT and ∆ex4 clones to identify SUZ12-S unique peptides. We identified a SUZ12-S specific peptide in both WT #2 and ∆ex4 #1. These observations were confirmed by SUZ12 IP followed by Western blot (WB) (size shift).

2024-03-18 | PXD046742 | Pride

Polycomb repressive complex 2-dependent and -independent functions of Jarid2 in transcriptional regulation in Drosophila [ChIP-Seq]

Project description:Jarid2 was recently identified as an important component of the mammalian Polycomb Repressive Complex 2 (PRC2), where it has a major effect on PRC2 recruitment in mouse embryonic stem cells. Although Jarid2 is conserved in Drosophila, it has not previously been implicated in Polycomb (Pc) regulation. Therefore, we purified Drosophila Jarid2 and its associated proteins and find that Jarid2 associates with all of the known canonical PRC2 components, demonstrating a conserved physical interaction with PRC2 in flies and mammals. Furthermore, in vivo studies with Jarid2 mutants in flies demonstrate that among several histone modifications tested, only H3K27 methylation, the mark implemented by PRC2, was affected. Genome-wide profiling of Jarid2, Su(z)12 and H3K27me3 occupancy by ChIP-seq indicates that Jarid2 and Su(z)12 have a very similar distribution pattern on chromatin. However, Jarid2 and Su(z)12 occupancy levels at some genes are significantly different with Jarid2 being present at relatively low levels at many Pc response elements (PREs) of certain Homeobox (Hox) genes, providing a rationale for why Jarid2 was never identified in Pc screens. Gene expression analyses show that Jarid2 and E(z) (a canonical PRC2 component) are required not only for transcriptional repression but might also function in active transcription. Identification of Jarid2 as a conserved PRC2 interactor in flies provides an opportunity to begin to probe some of its novel functions in Drosophila development. Examination of Jarid2, Su(z)12, and H3K27me3 profiles in fly larvae and Su(z)12 in eye imaginal discs under wild-type and Jarid2 mutant conditions.

2012-02-23 | E-GEOD-33546 | biostudies-arrayexpress

Genome wide mapping of Jarid2 and Suz12 binding sites in mouse ES cells before and after Jarid2 depletion

Project description:We analyzed the overlap in genome wide binding sites between Jarid2 and Suz12 in mouse ES cells and find that Jarid2 and Suz12 peaks have an high degree (90%) of overlap. Moreover we analyzed the effect of Jarid2 down regulation on genome wide Suz12 binding sites and found that Loss of Jarid2 lead to the loss of 70% of Suz12 binding sites and to a 10 Fold reduction in intensity for 90% of Suz12 binding sites. Overall, these results demonstrate that Jarid2 plays an essential role for Suz12 (PRC2 complex) association to DNA. Examination of two different proteins in two different cell lines

2010-01-27 | E-GEOD-19365 | biostudies-arrayexpress

Polycomb PRC2 antagonizes de novo DNA methylation at the maternal Gtl2-Rian-Mirg locus [Next-Gen Sequence Data]

Project description:Wild-type mouse embryonic stem cells are compared with mutants for components of PRC2 including Ezh2-/-, Eed-/-, and Jarid2-/- cells. Chromatin modifications, Gene expression, Pol-II, small-RNA sequencing, and DNA methylation are compared for both cell types. To study genomic and epigentic control of PRC2 in mESCs, we designed gene expression analysis (RNA-Seq and small RNA-Seq), combining with ChIP-Seq analysis of several factors and histone marks from wild-type and distinct PRC2 mutants including wild-type, Ezh2-/-, Eed-/-, and Jarid2-/-.

2015-07-15 | E-GEOD-59463 | biostudies-arrayexpress

Genome wide mapping of Jarid2 and Suz12 binding sites in mouse ES cells before and after Jarid2 depletion

2010-01-27 | GSE19365 | GEO

Mus musculus

Project description:miR-155 promotes Th17 development by targeting Jarid2

| PRJNA158955 | ENA

Polycomb repressive complex 2-dependent and M-bM-^@M-^Sindependent functions of Jarid2 in transcriptional regulation in Drosophila

Project description:This SuperSeries is composed of the following subset Series: GSE33546: Polycomb repressive complex 2-dependent and M-bM-^@M-^Sindependent functions of Jarid2 in transcriptional regulation in Drosophila [ChIP-Seq] GSE36038: Polycomb repressive complex 2-dependent and M-bM-^@M-^Sindependent functions of Jarid2 in transcriptional regulation in Drosophila [Affymetrix] Refer to individual Series

2012-02-23 | E-GEOD-36039 | biostudies-arrayexpress

Jarid2 methylation is required for PRC2 functioning during ES cells differentiation

Project description:We report that Jarid2 is methylated at K116 by the polycomb complex PRC2. We analyzed Jarid2 versus Methylated Jarid2 genomic localization by ChIP-seq. We also study H3K27 enrichment in Jarid2 knock out ES cells and in cells rescued for Jarid2 or a mutant that cannot be methylated. ChIP-seq for H3K27me3 was perfomed in undiffrentiated ES cells as well as after 8 days of diffrentiation toward Embroyid Bodies (Hanging Drop method). Experiment 1: Jarid2 vs Jarid2me ChIP-seq in undifferentiated mouse ES cells (E14). Experiment 2: H3K27me3 ChIP-seq in Jarid2 -/- ES cells (peng, 2009, Cell), or the same cells rescue with a BAC expressing JARID2 or a mutant of K116 to A. H3K27me3 Chip-seq were perfomed in undifferentiated ES cells and in EB after 8 days of differentiation (hanging Drop method).

2015-01-22 | E-GEOD-55630 | biostudies-arrayexpress

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