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ChIP-Seq revealed c-Jun promotes the transcriptional activities of the p35 and EBI3 promoters in human HepG2 cells.

ABSTRACT: we performed ChIP-Seq to clarify whether c-Jun activated by pCMV-HBx transfection could bind to the promoter of the IL-35 gene. The results showed that the transcriptional activity of c-Jun was significantly enhanced in the 3-kb region upstream and downstream of the IL-35 transcription start site. This finding suggests that the transcription factor c-Jun binds the promoter sequence of IL-35 and activates its transcription.

ORGANISM(S): Homo sapiens

PROVIDER: GSE196403 | GEO | 2022/02/12

REPOSITORIES: GEO

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Gene expression profiling of Jun -/- and Jun +/+ facial motor neurons

Project description:To determine target genes, biological functions of Jun and mechanisms of gene regulation by Jun in regenerating neurons, gene expression profiling was carried out of axotomized and uninjured facial motor neurons in floxed c-Jun mice crossed with nestin-cre mice. Nestin-promoter-driven Cre ensures deletion of Jun in the central nervous system including facial motor neurons. KO animals were Jun Flox/Fox Cre+, while WT animals were Jun Flox/Flox, Cre-.

2021-11-17 | GSE162977 | GEO

Genome-wide maps of H3K27ac, H3K4me1, JUN and p-JUN in JUN overexpressed or JUN inactivated fibroblasts

Project description:To further dissect whether and how activated JUN reconfigures the chromatin landscape, we performed Chromatin Immunoprecipitation (ChIP)-seq analyses for H3K4me1 and H3K27ac. Based on the significant increase of H3K27ac levels at H3K4me1+ sites, we identified 3,017 JUN-activated enhancers in JUN WT cells. In contrast, JUN AA fails to significantly induce H3K27ac accumulation at these regions. Their enrichment levels at JUN-activated enhancers were significantly decreased after JNKi treatment. Besides, these enhancers are directly driven by JUN, especially phosphorylated JUN.

2022-12-09 | GSE196345 | GEO

Stk40 deletion enhances c-Jun protein stability and compromises mesoderm differentiation

Project description:Serine/threonine kinase 40 (Stk40) was previously identified as a direct target gene of pluripotency-associated transcription factor Oct4 and its overexpression could facilitate differentiation of mouse embryonic stem cells (mESCs) towards the extraembryonic endoderm. Stk40-/- mice are lethal at the perinatal stage, displaying multiple organ failures. However, the molecular mechanisms underlying the physiological functions of Stk40 remain elusive. Here, we report that Stk40 ablation compromises the mesoderm differentiation from mESCs in vitro and in embryos. Mechanistically, Stk40 interacts with both mammalian constitutive photomorphogenic protein 1 (Cop1) and c-Jun, promoting degradation of c-Jun. Consequently, Stk40 knockout leads to c-Jun protein accumulation, which, in turn, might suppress the Wnt signaling activity and impair the mesoderm differentiation process. Overall, this study reveals that Stk40, together with Cop1, represent a novel axis for modulating c-Jun protein levels within an appropriate range during mesoderm differentiation from mESCs. Our finding provides new insight into the molecular mechanism regulating c-Jun protein stability and may have potential for managing related cellular disorders.

2019-05-14 | PXD012579 | Pride

Transcriptome analysis of JUN overexpressed or JUN inactivated fibroblasts

Project description:To examine the effects of phosphorylated JUN-mediated enhancers activation on gene expression, we conducted RNA-seq analysis in JUN wildtype (WT) or JUN inactive mutant (JUN AA) overexpressed MRC5 cells. The expression levels of genes associated with JUN-activated enhancers are significantly upregulated in JUN WT cells rather than in JUN AA cells. To quantify the effects of JUN inactivation on gene expression, we also performed RNA-seq analysis in JNKi-treated induced CAFs (iCAFs). We observed that JNKi significantly reduced expression levels of JUN-activated enhancers-associated genes.

2022-12-09 | GSE196351 | GEO

Genome-wide mapping of Jun binding site (K562)

Project description:Proto-oncogene c-jun is a leucine-zipper containing transcription factor which has a DNA binding domain and a transactivation domain. Jun dimerizes with another transcription factor Fos to form AP1 transcription factor. The AP-1 complex has been implicated in transformation and progression of cancer. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf Map binding sites of transcription factor Jun in the genome of K562 cells. The K562 input data has been deposited in GEO as GSM325934.

2009-12-31 | E-GEOD-19545 | biostudies-arrayexpress

BATF-JUN is critical for IRF4-mediated transcription in T cells

Project description:Interferon regulatory factor 4 (IRF4) is an IRF family transcription factor with critical roles in lymphoid development and in regulating the immune response. IRF4 binds DNA weakly owing to a carboxy-terminal auto-inhibitory domain, but cooperative binding with factors such as PU.1 or SPIB in B cells increases binding affinity, allowing IRF4 to regulate genes containing ETS–IRF composite elements (EICEs; 5'-GGAAnnGAAA-3'). Here we show that in mouse CD4+ T cells, where PU.1/SPIB expression is low, and in B cells, where PU.1 is well expressed, IRF4 unexpectedly can cooperate with activator protein-1 (AP1) complexes to bind to AP1–IRF4 composite (5'-TGAnTCA/GAAA-3') motifs that we denote as AP1–IRF composite elements (AICEs). Moreover, BATF–JUN family protein complexes cooperate with IRF4 in binding to AICEs in pre-activated CD4+ T cells stimulated with IL-21 and in TH17 differentiated cells. Importantly, BATF binding was diminished in Irf4-/- T cells and IRF4 binding was diminished in Batf-/- T cells, consistent with functional cooperation between these factors. Moreover, we show that AP1 and IRF complexes cooperatively promote transcription of the Il10 gene, which is expressed in TH17 cells and potently regulated by IL-21. These findings reveal that IRF4 can signal via complexes containing ETS or AP1 motifs depending on the cellular context, thus indicating new approaches for modulating IRF4-dependent transcription. Genome-wide transcription factors mapping and binding of IRF4, BATF, IRF8, STAT3, JUN etc in WT, Irf4-/- and Batf-/- mice in different cell types (B cells, CD4+ T cells and TH17 cells) cultured with or without IL-21 was conducted. RNA-Seq is conducted in mouse B cells, CD4+ T cells, TH1/TH2/TH9/TH17/Treg.

2012-09-18 | E-GEOD-39756 | biostudies-arrayexpress

Murine livers post DEN treatment: c-Jun f/f vs. c-Jun Dli

Project description:This SuperSeries is composed of the following subset Series: GSE39928: Murine livers post DEN treatment: c-Jun f/f vs. c-Jun Dli [35MM] GSE39929: Murine livers post DEN treatment: c-Jun f/f vs. c-Jun Dli [40MM] GSE39930: Murine livers post DEN treatment: c-Jun f/f vs. c-Jun Dli [41MM] GSE39931: Murine livers post DEN treatment: c-Jun f/f vs. c-Jun Dli [43MM] Refer to individual Series ** Six samples in each Series represent the same set of biological source material hybridized to 4 different arrays (named IMP internal: 35MM, 40MM, 41MM, and 43MM).

2012-08-07 | E-GEOD-39932 | biostudies-arrayexpress

ENCODE ChIP-chip for JUN on Human Hela S3 Cells

Project description:JUN ChIP-chip performed on Human Hela S3 Cells for Nimblegen ENCODE arrays which comprise 50mer oligonucleotides spaced every 38bps (overlapping by 12nts). Goal is to identify binding sites for JUN. Keywords = Transcription Factor Binding, JUN, ChIP-chip, Human, Genome Tiling Arrays Keywords: ChIP-chip

2005-10-19 | GSE3448 | GEO

Genome-wide mapping of Jun binding site (K562)

2009-12-31 | GSE19545 | GEO

The effect and mechanism of Si-Jun-Zi decoction on the function of intestinal mucosal barrier during chemotherapy for colorectal cancer

Project description:Interventions: Control:FOLFOX or CAPEOX chemtherapy;Experimental group 1:Si-Jun-Zi decoction;Experimental group 2:enteral nutrition combine with Chemotherapy;Experimental group 3:Si-Jun-Zi decoction + enteral nutrition Primary outcome(s): Intestinal barrier function Study Design: Parallel

| 2689141 | ecrin-mdr-crc

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