HUR affected genes in human skin cells
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA679558 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR13085909_1.fastq.gz | Fastqsanger.gz | |||
| SRR13085909_2.fastq.gz | Fastqsanger.gz | |||
| SRR13085910_1.fastq.gz | Fastqsanger.gz | |||
| SRR13085910_2.fastq.gz | Fastqsanger.gz | |||
| SRR13085911_1.fastq.gz | Fastqsanger.gz |
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Project description:This study aims to evaluate the effect of HUR overexpression and knokdown on the function and global gene expression in human skin cells. Cells with HUR overexpression and silencing were compared with control cells by RNA-Seq.
2020-11-20 | GSE161811 | GEO
Project description:AUF-1 affected genes in human skin cells
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Project description:HuR is a regulator of mRNA turnover or translation of inflammatory genes through binding to adenylate-uridylate-rich elements (ARE) and related motifs present in the 3’untranslated region (UTR) of mRNAs. We aimed to identify HuR targets in the human airway epithelial cell line BEAS-2B challenged with TNFa plus IFNg, a strong stimulus for inflammatory epithelial responses. Ribonucleoprotein (RNP) complexes from resting and cytokine-treated cells were immunoprecipitated (IP) using anti-HuR and isotype-control antibody, and eluted mRNAs were reverse-transcribed and hybridized to an inflammatory-focused gene array. The chemokines CCL2, CCL8, CXCL1 and CXCL2 ranked highest among 27 signaling and inflammatory genes significantly enriched in the HuR RNP-IP from stimulated cells over the control IP. Among these, 20 displayed published HuR binding motifs. Association of HuR with the four endogenous chemokine mRNAs was validated by single-gene RNP-IP, and shown to be 3’UTR-dependent by biotin pull-down assay. Cytokine treatment increased mRNA stability only for CCL2 and CCL8, and transient silencing and overexpression of HuR affected only CCL2 and CCL8 expression in primary and transformed epithelial cells. Cytokine-induced CCL2 mRNA was predominantly cytoplasmic; conversely, CXCL1 mRNA remained mostly nuclear and unaffected, as CXCL2, by changes in HuR levels. Increase in cytoplasmic HuR and HuR target expression partially relied on the inhibition of AMP-dependent kinase, a negative regulator of HuR nucleocytoplasmic shuttling. We postulate that HuR critically regulates the epithelial response, by associating with multiple adenylate-uridylate-rich elements (ARE)-bearing, functionally related inflammatory transcripts. On the basis of genome-wide studies probing the relationship between RNA-binding proteins and the functional profile of their associated transcripts, we combined the specific HuR immunoprecipitation of RNPs and the genome-scale microarray to profile the target mRNAs of HuR in the human airway epithelial cell line BEAS-2B challenged with very strong inflammatory stimulation, TNFa plus IFNG. The array platform we used is the Human Autoimmune and Inflammatory Response Gene Array (SuperArray Bioscience, Frederick, MD). To validate the association of HuR and its target mRNAs, we planned to apply biotin pull-down assay. HuR overexpression and knockdown assays were also planned to further verify the association of HuR and its target mRNAs. Overall, we did three biological replicates for the IP array experiments, which include both IgG1 control IP and HuR IP arrays.
2010-11-10 | E-GEOD-25264 | biostudies-arrayexpress
Project description:HuR is a regulator of mRNA turnover or translation of inflammatory genes through binding to adenylate-uridylate-rich elements (ARE) and related motifs present in the 3’untranslated region (UTR) of mRNAs. We aimed to identify HuR targets in the human airway epithelial cell line BEAS-2B challenged with TNFa plus IFNg, a strong stimulus for inflammatory epithelial responses. Ribonucleoprotein (RNP) complexes from resting and cytokine-treated cells were immunoprecipitated (IP) using anti-HuR and isotype-control antibody, and eluted mRNAs were reverse-transcribed and hybridized to an inflammatory-focused gene array. The chemokines CCL2, CCL8, CXCL1 and CXCL2 ranked highest among 27 signaling and inflammatory genes significantly enriched in the HuR RNP-IP from stimulated cells over the control IP. Among these, 20 displayed published HuR binding motifs. Association of HuR with the four endogenous chemokine mRNAs was validated by single-gene RNP-IP, and shown to be 3’UTR-dependent by biotin pull-down assay. Cytokine treatment increased mRNA stability only for CCL2 and CCL8, and transient silencing and overexpression of HuR affected only CCL2 and CCL8 expression in primary and transformed epithelial cells. Cytokine-induced CCL2 mRNA was predominantly cytoplasmic; conversely, CXCL1 mRNA remained mostly nuclear and unaffected, as CXCL2, by changes in HuR levels. Increase in cytoplasmic HuR and HuR target expression partially relied on the inhibition of AMP-dependent kinase, a negative regulator of HuR nucleocytoplasmic shuttling.
2010-11-10 | GSE25264 | GEO
Project description:IL-20 cytokines are involved in the establishment of psoriasis, a common chronic skin inflammation epidemiologically associated with metabolic syndrome, but molecular mechanisms underlying their over-expression remain to be elucidated. We find that keratinocytes (KCs) expressed IL-20 and lymphocytes expressed IL-22 cytokines up-regulation occurs at post-transcriptional level with stabilization of their RNA messengers. Looking at psoriatic epidermis, we observe that the p38/MK2 pathway is not activated but that the RNA-binding protein (RBP) HuR re-localizes in keratinocytes cytoplasm, suggesting post-transcriptional regulation of numerous mRNAs. HuR ribonucleoprotein immunoprecipitations analyzed by high-throughput sequencing (RIP-Seq) identify potential pre-mature and mature RNA targets for uninvolved and involved skin and confirms that HuR activity is displaced from the nucleus to the cytoplasm. Numerous psoriasis up-regulated transcripts are HuR targets and HuR knockdown reduces expression of transcripts like beta-defensin-2, CXCL-10 or IL-2, suggesting an implication of HuR in pathophysiological processes such as morphological, immune and metabolic inflammatory responses. Finally, metabolic disorders affecting psoriatic keratinocytes are responsible for HuR cytoplasmic localization since a decreased activity of the cellular metabolic sensor AMPK, that is observed in human psoriatic epidermis, is sufficient to promote HuR cytosolic localization as well as IL-20 over-production both in human keratinocytes and in vivo in mouse epidermis where it then initiates psoriasis-like histological changes. These results may provide insights into molecular links between metabolism and post-transcriptional networks during chronic inflammation, as illustrated in psoriasis by mechanisms connecting AMPK, HuR and IL-20. Analysis of HuR-binding RNA in uninvolved versus involved psoriatic samples by RIP-Seq. Samples from five different patients were used for both uninvolved and involved skin. RIP-Seq was also made using a control IgG.
2015-09-08 | E-GEOD-50598 | biostudies-arrayexpress
Project description:This study aims to evaluate the effect of AUF-1 knokdown on the function and global gene expression in human skin cells. Cells with AUF1 silencing were compared with control cells by RNA-Seq. Cell senescence is a tightly controlled, programmed process. Although the mechanism of cell senescence is unclear, the concept that cell aging is an interaction results between enviomental and genetic factors has been accepted. Changes in the expression of related genes are the genetic basis of cell senescence. AUF1 gene has been proved that can recognize classical mRNA and regulated its expression level. These classical mRNA include those encoding cecle-regulating proteins, apoptotic regulators, cytokines and proto-oncogenes. Our study use overexpression and interference lentivirus of AUF1 to transfect WS1 cell to process cell transcriptome sequencing. Through the Bioinformatics analysis results, we want to see some different expressed genes related to cell cecle, cell apoptosis and so on. Our study can provide basis research to further expound AUF1 gene, play an important role of aging mechanism.
2019-10-10 | GSE138621 | GEO
Project description:Comprehensive meta-analysis and target screening confirmed that the mRNA-binding protein of ELAV-family HuR is oncogenic and universally upregulated in brain tumors, which highlight HuR as an universal chemotherapeutic target. HuR functionality in cancer cells is strictly dependent on HuR nuclear/cytoplasmic shuttling and dimerization; therefore, we developed a new class of inhibitors of HuR protein dimerization by utilizing medicinal chemistry techniques and reporter cell-based assay of HuR dimerization. The therapeutic potentials of lead compound (SRI-42127) were evaluated in five primary patient-derived glioma xenolines of classic, proneural, and mesenchymal subtypes, in vitro, and in mouse glioma model, in vivo. The Illumina global RNA-Sequencing was performed on PDGx-derived glioma neurospheres of different subtypes after treatment with DMSO (control) or SRI-42127 (3 uM) for 12 h to analysis transcripts and cell-signaling pathways affected by new inhibitor of HuR dimerization.
2020-11-05 | GSE158271 | GEO
Project description:Gene expression profiling was performed on biopsies of affected and unaffected psoriatic skin and normal skin from seven Japanese patients to obtain insights into the pathways that control this disease. U95A Affymetrix DNA chips that contain oligonucleotide arrays of approximately 12,000 well-characterized human genes were used in the study. The statistical analysis of the Affymetrix data, based on the ranking of the Student-test statistic, revealed a complex regulation of molecular stress and immune gene responses. The majority of the 266 induced-genes in affected and unaffected psoriatic skin were involved with interferon mediation, immunity, cell-adhesion, cytoskeleton restructuring, protein trafficking and degradation, RNA regulation and degradation, signaling transduction, apoptosis and atypical epidermal cellular proliferation and differentiation. The disturbances in the normal protein degradation equilibrium of skin were reflected by the significant increase in the gene expression of various protease inhibitors and proteinases including the induced components of the ATP/ubiquitin-dependent non-lysosomal proteolytic pathway that is involved with peptide processing and presentation to T-cells. Some of the upregulated genes, such as TGM1, IVL, CSTA, FABP5 and SPRR, are well known psoriatic markers involved in atypical epidermal cellular organization and differentiation. In the comparison between the affected and unaffected psoriatic skin, the transcription factor JUNB was found at the top of the statistical rankings for the 51 significantly upregulated genes in affected skin, suggesting that it has an important but as yet undefined role in psoriasis. Our gene expression data and analysis suggest that psoriasis is a chronic IFN and T-cell-mediated immune disease of the skin where the imbalance in epidermal cellular structure, growth and differentiation arises from the molecular antiviral stress signals initiating inappropriate immune responses. Keywords: Disease State Analysis
2005-10-01 | GSE2737 | GEO
Project description:IL-20 cytokines are involved in the establishment of psoriasis, a common chronic skin inflammation epidemiologically associated with metabolic syndrome, but molecular mechanisms underlying their over-expression remain to be elucidated. We find that keratinocytes (KCs) expressed IL-20 and lymphocytes expressed IL-22 cytokines up-regulation occurs at post-transcriptional level with stabilization of their RNA messengers. Looking at psoriatic epidermis, we observe that the p38/MK2 pathway is not activated but that the RNA-binding protein (RBP) HuR re-localizes in keratinocytes cytoplasm, suggesting post-transcriptional regulation of numerous mRNAs. HuR ribonucleoprotein immunoprecipitations analyzed by high-throughput sequencing (RIP-Seq) identify potential pre-mature and mature RNA targets for uninvolved and involved skin and confirms that HuR activity is displaced from the nucleus to the cytoplasm. Numerous psoriasis up-regulated transcripts are HuR targets and HuR knockdown reduces expression of transcripts like beta-defensin-2, CXCL-10 or IL-2, suggesting an implication of HuR in pathophysiological processes such as morphological, immune and metabolic inflammatory responses. Finally, metabolic disorders affecting psoriatic keratinocytes are responsible for HuR cytoplasmic localization since a decreased activity of the cellular metabolic sensor AMPK, that is observed in human psoriatic epidermis, is sufficient to promote HuR cytosolic localization as well as IL-20 over-production both in human keratinocytes and in vivo in mouse epidermis where it then initiates psoriasis-like histological changes. These results may provide insights into molecular links between metabolism and post-transcriptional networks during chronic inflammation, as illustrated in psoriasis by mechanisms connecting AMPK, HuR and IL-20.
2015-09-08 | GSE50598 | GEO
Project description:Purpose: Next-generation sequencing (NGS) has revolutionized systems-based analysis of RNA. The goals of this study are to compare HuR binding RNAs between 0 or 5 Gy irradiation, and analyze its effect on RNA expression. Methods: Human skin fibroblast cell line WS1 cells were treated with 0 or 5 Gy irradiation. After 24 h, RNA expression was measured using using Illumina HiSeq4000. Meanwhile, RIP was performed using HuR antibody. HuR bound mRNAs after 0 or 5 Gy irradiation was measured using using Illumina HiSeq4000. Results: RIP-sequencing reveals HuR binding RNAs between 0 or 5 Gy irradiation in WS1 cells. RNA sequencing reveals dyeregulated RNAs between 0 and 5 Gy irradiation. Conclusions: Our study represents the first detailed analysis of HuR binding RNAs between 0 and 5 Gy irradiation generated by RNA-seq technology. This study contributes to our understanding of the role of HuR inresponse to radiation.
2019-02-22 | GSE111823 | GEO