Identification of targets for the transcription factor EFL-3 in the C. elegans epidermis
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ABSTRACT:
ORGANISM(S): Caenorhabditis elegans
PROVIDER: GSE270959 | GEO | 2024/07/02
REPOSITORIES: GEO
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Project description:Identification of targets for the transcription factor EFL-3 in the C. elegans epidermis
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Project description:The epithelial splicing regulatory proteins, ESRP1 and ESRP2 are essential for mammalian development through regulation of a global program of alternative splicing of genes involved in maintenance of epithelial cell function. To further inform our understanding of the molecular functions of ESRP1 we performed enhanced crosslinking immunoprecipitation coupled with high throughput sequencing (eCLIP) in epithelial cells of mouse epidermis. The genome-wide binding sites of ESRP1 were integrated with RNA-Seq analysis of alterations in splicing and total gene expression that result from epidermal ablation of Esrp1 and Esrp2. These studies demonstrated that ESRP1 functions in splicing regulation occur primarily through direct binding in a position-dependent manner to either promote exon inclusion or skipping. In addition, we also identified widespread binding of ESRP1 in 3’ and 5’ untranslated regions (UTRs) of genes involved in epithelial cell function, suggesting that its post-transcriptional functions extend beyond splicing regulation.
2022-09-12 | GSE212304 | GEO
Project description:Atopic Dermatitis (AD) is the most common inflammatory skin disease and characterized by a deficient epidermal barrier and cutaneous inflammation. Genetic studies suggest a key role of keratinocytes in AD pathogenesis, but the alterations in the proteome that occur in the entire epidermis have not been defined. Employing a pressure-cycling technology-data-independent acquisition (PCT-DIA) approach, we performed quantitative proteomics of epidermis from healthy volunteers and lesional and non-lesional skin of AD patients. Results were validated by targeted proteomics using parallel reaction monitoring mass spectrometry or by immunofluorescence staining. The identified proteins reflect the strong inflammation in lesional skin and the defect in keratinocyte differentiation and epidermal stratification. Most importantly, they reveal impaired activation of the NRF2-antioxidant pathway and reduced abundance of mitochondrial proteins involved in key metabolic pathways in the epidermis. These results provide insight into the molecular alterations in the epidermis of AD patients and identify novel targets for pharmaceutical intervention.
2022-10-04 | PXD025431 | Pride
Project description:Identification of ESRP1 targets in the epidermis
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Project description:In this study we adapt targeted DamID (TaDa) for use in C.elegans and employ it to identify targets within the epidermis for the transcription factors LIN-22 and NHR-25 that are key epidermal development regulators.
2021-10-05 | GSE163243 | GEO
Project description:modENCODE_submission_3072 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: YL445(official name : YL445 genotype : unc119(ed3); vrIs81 [pPIE-1::EFL-1::GFP FLAG: EFL-1 3?UTR genotype : unc-119 (+)] outcross : 3 mutagen : Bombard tags : GFP::3xFlag description : made_by : ); Developmental Stage: Young Adult; Genotype: unc119(ed3); vrIs81 [pPIE-1::EFL-1::GFP FLAG: EFL-1 3?UTR; Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage Young Adult; Target gene efl-1; Strain YL445(official name : YL445 genotype : unc119(ed3); vrIs81 [pPIE-1::EFL-1::GFP FLAG: EFL-1 3?UTR genotype : unc-119 (+)] outcross : 3 mutagen : Bombard tags : GFP::3xFlag description : made_by : ); temp (temperature) 20 degree celsius
2012-05-07 | E-GEOD-37799 | biostudies-arrayexpress
Project description:modENCODE_submission_3074 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: YL424(official name : YL424 genotype : unc-119(ed3); vrIs68[pEFL-1::EFL-1::GFP FLAG: EFL-1 3?UTR genotype : unc-119 (+)] outcross : 3 mutagen : Bombard tags : GFP::3xFlag description : made_by : ); Developmental Stage: fed L1; Genotype: unc-119(ed3); vrIs68[pEFL-1::EFL-1::GFP FLAG: EFL-1 3?UTR; Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage fed L1; Target gene efl-1; Strain YL424(official name : YL424 genotype : unc-119(ed3); vrIs68[pEFL-1::EFL-1::GFP FLAG: EFL-1 3?UTR genotype : unc-119 (+)] outcross : 3 mutagen : Bombard tags : GFP::3xFlag description : made_by : ); temp (temperature) 20 degree celsius
2012-05-07 | E-GEOD-37801 | biostudies-arrayexpress
Project description:The root epidermis of Arabidopsis provides a simple and experimentally useful model for studying the molecular basis of cell fate and differentiation. The goal of this study was to define the larger gene regulatory network that governs the differentiation of the root hair and non-hair cell types of the Arabidopsis root epidermis. Transcript levels in the root epidermis of wild-type and mutant lines were assessed by purifying populations of root epidermal cells using fluorescence-based cell-sorting. Further, the role of the plant hormones auxin and ethylene on root epidermis development was assessed by defining transcript levels in the root epidermis of plants grown on media containing IAA or ACC. These microarray results were used to construct a comprehensive gene regulatory network that depicts the transcriptional control of root epidermal cell fate and differentiation in Arabidopsis.
2011-12-01 | GSE30547 | GEO
Project description:modENCODE_submission_3211 This submission comes from a modENCODE project of Michael Snyder. For full list of modENCODE projects, see http://www.genome.gov/26524648 Project Goal: We are identifying the DNA binding sites for 300 transcription factors in C. elegans. Each transcription factor gene is tagged with the same GFP fusion protein, permitting validation of the gene's correct spatio-temporal expression pattern in transgenic animals. Chromatin immunoprecipitation on each strain is peformed using an anti-GFP antibody, and any bound DNA is deep-sequenced using Solexa GA2 technology. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf EXPERIMENT TYPE: CHIP-seq. BIOLOGICAL SOURCE: Strain: YL418(official name : YL418 genotype : unc-119(ed3) III; vrIs65[pGES-1::EFL-1::GFP FLAG:EFL-1 3'-UTR genotype : unc-119 (+)] outcross : 0 mutagen : None tags : GFP::3xFlag description : The EFL-1::GFP fusion protein is driven by the ges-1 promoter and expressed in the instestine. made_by : Michelle Kudron (Valerie Reinke's lab) ); Developmental Stage: fed L1; Genotype: unc-119(ed3) III; vrIs65[pGES-1::EFL-1::GFP FLAG:EFL-1 3'-UTR; Sex: Hermaphrodite; EXPERIMENTAL FACTORS: Developmental Stage fed L1; Target gene efl-1; Strain YL418(official name : YL418 genotype : unc-119(ed3) III; vrIs65[pGES-1::EFL-1::GFP FLAG:EFL-1 3'-UTR genotype : unc-119 (+)] outcross : 0 mutagen : None tags : GFP::3xFlag description : The EFL-1::GFP fusion protein is driven by the ges-1 promoter and expressed in the instestine. made_by : Michelle Kudron (Valerie Reinke's lab) ); temp (temperature) 20 degree celsius
2014-04-10 | E-GEOD-56707 | biostudies-arrayexpress
Project description:The root epidermis of Arabidopsis provides a simple and experimentally useful model for studying the molecular basis of cell fate and differentiation. The goal of this study was to define the larger gene regulatory network that governs the differentiation of the root hair and non-hair cell types of the Arabidopsis root epidermis. Transcript levels in the root epidermis of wild-type and mutant lines were assessed by purifying populations of root epidermal cells using fluorescence-based cell-sorting. Further, the role of the plant hormones auxin and ethylene on root epidermis development was assessed by defining transcript levels in the root epidermis of plants grown on media containing IAA or ACC. These microarray results were used to construct a comprehensive gene regulatory network that depicts the transcriptional control of root epidermal cell fate and differentiation in Arabidopsis. The cells of the developing root epidermis were obtained by growing plant seedlings expressing the WER::GFP transgene under sterile conditions on MS media, cutting off root tips (including all developmental stages), protoplasting the roots, and purifying cells containing GFP using FACS. The WER::GFP transgene is expressed throughout the developing cells of the root epidermis and the lateral root cap. Three biological replicates were analyzed for each of the 25 plant lines examined in this study.
2011-12-01 | E-GEOD-30547 | biostudies-arrayexpress