Jmjd1a / Jmjd2c RNAi expression profile
Ontology highlight
ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE8937 | GEO | 2007/09/29
SECONDARY ACCESSION(S): PRJNA102355
REPOSITORIES: GEO
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Project description:Using microarrays to explore the global programme of gene expression after depeltion of JMJD1A and JMJD1B
2017-06-01 | GSE71785 | GEO
Project description:The histone demethylase JMJD1A（Jumoji domain containing 1A） is overexpressed in multiple cancers and promotes cancer progression. However, the role and mechanism of JMJD1A in gastric cancer remains poorly understood.Here, we found that JMJD1A could suppress gastric cancer cell proliferation, migration, invasion and xenograft tumor growth. Using RNA sequencing, we identified RUNX3 as a novel target gene of JMJD1A.
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Project description:We used microarray to determine the changes in gene expression profile after KD of Jmjd2b and Jmjd2c compared to Anti-GFP KD from mES cells Mouse ES cells were infected with AntiGFP, Jmjd2b and Jmjd2c shRNAs lentivirus, puromycin selected, passage them 2-3 times, collected for RNA isolation and gene expression
2013-12-01 | E-GEOD-43059 | biostudies-arrayexpress
Project description:Genome-wide occupancy of biotinylated Jmjd2b, Jmjd2c from mESCs, as well as occupancy of selected factors and histone marks from wild-type mESCs, Anti-GFP KD, Jmj2b KD and Jmjd2c KD mESCs genome To identify genome-wide binding target sites of Jmjd2b and Jmjd2c in the mESCs genome, and genome-wide binding sites for selected factors and histone marks from Anti-GFP KD, Jmjd2b KD and Jmjd2c KD mESCs
2013-12-01 | E-GEOD-43229 | biostudies-arrayexpress
Project description:Histone H3 lysine 9 (H3K9) methylation is an epigenetic mark of transcriptionally repressed chromatin. During mammalian development, H3K9 methylation levels seem to be spatiotemporally regulated by the opposing activities of methyltransferases and demethylases to govern correct gene expression. However, the combination(s) of H3K9 methyltransferase(s) and demethylase(s) that contribute to this regulation and the genes regulated by them remain unclear. Herein, we demonstrate the essential roles of H3K9 demethylases Jmjd1a and Jmjd1b in the embryogenesis and viability control of embryonic stem (ES) cells. Mouse embryos lacking Jmjd1a/Jmjd1b died after implantation. Depletion of Jmjd1a/Jmjd1b in mouse ES cells induced rapid cell death accompanied with a massive increase in H3K9 methylation. Jmjd1a/Jmjd1b depletion induced an increase in H3K9 methylation in the gene-rich regions of the chromosomes, indicating that Jmjd1a/Jmjd1b removes H3K9 methylation marks in the euchromatin. Importantly, the additional disruption of the H3K9 methyltransferase G9a in a Jmjd1a/Jmjd1b-deficient background rescued not only the H3K9 hypermethylation phenotype but also the cell death phenotype. We also found that Jmjd1a/Jmjd1b removes H3K9 methylation marks deposited by G9a in the Oct4 and Ccnd1 loci to activate transcription. In conclusion, Jmjd1a/Jmjd1b ensures ES cell viability by antagonizing G9a-mediated H3K9 hypermethylation in the gene-rich euchromatin.
2018-03-14 | GSE98761 | GEO
Project description:Here we reported the Jmjd2a and Jmjd2c are co-targeted at the essential genes of mouse activating B220+ B cells. B cell activation programs transcription networks that subsequently induce plasma cell differentiation, but how histone demethylases participating in this process remains elusive. We found that histone demethylases Jmjd2a and Jmjd2c are expressed in Tfh-mediated signals stimulated mouse spelenic B220+ B cells. we then perform ChIP-seq by using anti-Jmjd2a and anti-Jmjd2c antibodies to identified the genes regulated by Jmjd2a and Jmjd2c and required for correct activation.
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Project description:Genome-wide occupancy of biotinylated Jmjd2b, Jmjd2c from mESCs, as well as occupancy of selected factors and histone marks from wild-type mESCs, Anti-GFP KD, Jmj2b KD and Jmjd2c KD mESCs genome
2013-12-01 | GSE43229 | GEO
Project description:Base on the privious studie from our lab, we found the histone demethylases, Jmjd2a and Jmjd2c are upregulated in stimulated primary B cells, depletion of Jmjd2a and Jmjd2c in stimulated B cells resulted in failed activation of B cells. Owimg to the essential functions of Jmjd2a and Jmjd2c, We here applied loss of function approach, such as siRNA, to study the how Jmjd2a and Jmjd2c regulate plasma cell differentiation.
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Project description:Jmjd2/Kdm4 H3K9-demethylases cooperate in promoting mouse embryonic stem cell (ESC) identity. However, little is known about their importance at the exit of ESC pluripotency. Here, we uncover that Jmjd2c facilitates this process by stabilizing the assembly of Mediator-Cohesin complexes at lineage-specific enhancers. Functionally, we show that Jmjd2c is required in ESCs to initiate appropriate gene expression programs upon somatic multi-lineage differentiation. In the absence of Jmjd2c, differentiation is stalled at an early post-implantation epiblast-like stage, while Jmjd2c-knockout ESCs remain capable of forming extra-embryonic endoderm derivatives. Dissection of the underlying molecular basis revealed that Jmjd2c is re-distributed to lineage-specific enhancers during ESC priming for differentiation. Interestingly, Jmjd2c-bound enhancers are co-occupied by the H3K9-methyltransferase G9a/Ehmt2, independently of its H3K9-modifying activity. Loss of Jmjd2c abrogates G9a recruitment and furthermore destabilizes loading of the Mediator and Cohesin components Med1 and Smc1a at newly activated and poised enhancers in ESC-derived epiblast-like cells. These findings unveil Jmjd2c-G9a as novel enhancer-associated factors, and implicate Jmjd2c as a molecular scaffold for the assembly of essential enhancer-protein complexes with impact on timely gene activation.
2017-01-18 | GSE93721 | GEO
Project description:Developmental gene expression is defined through cross-talk between the function of transcription factors and epigenetic status including histone modification. Although several known transcription factors play crucial roles in mammalian sex determination, how chromatin regulation contributes to this process is unknown. We observed male-to-female sex reversal in mice lacking the H3K9 demethylase Jmjd1a, and found that Jmjd1a directly regulates expression of the mammalian Y chromosome sex-determining gene Sry, by regulating H3K9me2 marks. These studies reveal a pivotal role for epigenetic regulation in mammalian sex determination, and provide new impetus for identifying additional causes of disorders of sex determination by environmental factors. Gene expression patterns were measured in gonadal somatic cells of Jmjd1a mutant and control embryos at E11.5. Three biological replicates were performed in each group.
2013-08-03 | E-GEOD-49513 | biostudies-arrayexpress