EDA-RNAseq
Ontology highlight
ABSTRACT:
PROVIDER: PRJEB14110 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| ERR1418310.fastq.gz | Fastqsanger.gz | |||
| ERR1418310_1.fastq.gz | Fastqsanger.gz | |||
| ERR1418310_2.fastq.gz | Fastqsanger.gz | |||
| ERR1418311.fastq.gz | Fastqsanger.gz | |||
| ERR1418311_1.fastq.gz | Fastqsanger.gz |
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Project description:A splice defect in the EDA gene in dogs with an X-linked ectodermal dysplasia
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Project description:Over 40 % of microRNAs are located in introns of coding genes, and many intronic microRNAs are co-regulated with their host genes. In such cases of co-regulation, the products of host genes and their intronic microRNAs can cooperate to coordinately regulate biologically important pathways. Therefore, we screened intronic microRNAs dysregulated in liver of obese mouse models to identify previously uncharacterized coding host genes that may contribute to the pathogenesis of obesity-associated insulin resistance and type 2 diabetes mellitus. Our approach identified that expression of both Ectodysplasin A (Eda), the causal gene of X-linked hypohidrotic ectodermal dysplasia (XLHED; MIM 305100) and its intronic microRNA, miR-676, was strongly increased in liver of obese mouse models. Moreover, hepatic EDA expression is increased in obese human subjects, reduced upon weight loss, and its hepatic expression correlates with systemic insulin resistance. Eda expression in murine liver is controlled via PPARg activation, increases in circulation and promotes JNK activation and inhibitory serine phosphorylation of IRS1 in skeletal muscle. Consistently, bi-directional modulation of hepatic Eda expression in mouse models affects systemic glucose metabolism with alterations of muscle insulin signaling, revealing a novel role of EDA as an obesity-associated hepatokine, which impairs insulin sensitivity in skeletal muscle.
2017-11-14 | PXD006573 | Pride
Project description:We screened intronic microRNAs dysregulated in liver of obese mouse models to identify previously uncharacterized coding host genes that may contribute to the pathogenesis of obesity-associated insulin resistance and type 2 diabetes mellitus. Our approach identified the expression of Ectodysplasin A (Eda), the causal gene of X-linked hypohidrotic ectodermal dysplasia (XLHED; MIM 305100) was strongly increased in liver of obese mouse models both in rodents and humans.Eda expression in murine liver is controlled via PPARγ activation, increases in circulation and promotes JNK activation and inhibitory serine phosphorylation of IRS1 in skeletal muscle. Consistently, bi-directional modulation of hepatic Eda expression in mouse models affects systemic glucose metabolism with alterations of muscle insulin signaling, revealing a novel role of EDA as an obesity-associated hepatokine, which impairs insulin sensitivity in skeletal muscle.
2017-10-27 | GSE100686 | GEO
Project description:Induced pluripotent stem cells (iPSC) were generated from two patients affected by ankyloblepharon ectodermal dysplasia and clefting (AEC), an ectodermal dysplasia caused by mutations in TP63. The two TP63mutations(I537T and R598L) were corrected using Crispr/Cas9- mediated homologous recombination. The resulting conisogenic iPSC pairs were differentiated into keratinocytes and subjected to RNA-sequencing.
2018-01-16 | GSE109185 | GEO
Project description:The mangrove killifish, Kryptolebias marmoratus, can reproduce with self-fertilisation, offering a unique and useful genetic tool for generation of genetic mutants and quick identification of mutated genes. From an ENU-mutated mangrove killifish line R228, we have isolated a novel mutant line, no-fin-ray/nfr in which homozygous mutant of adult fish fin ray development is largely reduced. Besides the reduction of the fin, the nfr mutant also exhibited other phenotype associated with ectodermal cell lineages including loss of scales, deformation in the gill structure such as decreasing the number of gill filaments, the reduction in the number of jaw teeth, pharyngeal teeth and gill rakers. Illumina RNAseq with 3 embryos each from mutants, siblings and the parental WT strain Hon9 (only 9 embryos as total) identified a mutation in the edaradd in a highly conserved C-terminal death domain. Edaradd is known as a cytoplasmic accessory protein for the Ectodysplasin A (EDA) signalling pathway. To confirm the crucial role of edaradd during fin development, CRISPR RNAs were designed to knock out the gene in another killifish species, Arabian killifish. Indeed, Arabian killifish edaradd crispants showed a potent reduction of the fin development with 100% frequency. Furthermore, EDA crispants also showed identical phenotypes to that of edaradd crispants, confirming the fin defect in the mutants/crispants is caused by the signalling pathway of the EDA in the killifish species. These data demonstrate a powerful genetic approach using isogenic self-fertilising mangrove killifish as a tool for identifying mutants and their mutation, and revealed the crucial role of edaradd for the first time in the fish fin development and other ectoderm derived epithelial tissues.
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Project description:Vertebrate Hox genes are key players in the establishment of structures during the development of the main body axis. Subsequently, they play important roles either in organizing secondary axial structures such as the appendages, or during homeostasis in postnatal stages and adulthood. Here we set up to analyze their elusive function in the ectodermal compartment, using the mouse limb bud as a model. We report that the HoxC gene cluster was globally co-opted to be transcribed in the distal limb ectoderm, where it is activated following the rule of temporal colinearity. These ectodermal cells subsequently produce various keratinized organs such as nails or claws. Accordingly, deletion of the HoxC cluster led to mice lacking nails (anonychia) and also hairs (alopecia), a condition stronger than the previously reported loss of function of Hoxc13, which is causative of the ectodermal dysplasia 9 (ECTD9) syndrome in human patients. We further identified, in mammals only, two ectodermal-specific enhancers located upstream the gene cluster, which act synergistically to regulate Hoxc genes in these ectodermal organs. Deletion of these enhancers alone or in combination revealed a strong quantitative component in the regulation of these genes in the ectoderm, suggesting that these two enhancers may have evolved along with mammals to provide the level of HOXC proteins necessary for the full development of hairs and nails.
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Project description:Skin-specific Eda signaling promotes skin appendage development through NF-kB mediated gene transcription. We find that Eda triggers the formation of a novel SWI/SNF complex in which RelB is recruited through a linker protein, Tfg, to interact with the BAF45d component in SWI/SNF (BAF) chromatin remodeling complex. BAF component BAF250a is particularly enriched in skin appendages, and epidermal knockout (cKO) of BAF250a impairs skin appendage development, resulting in phenotypes similar to those of Eda-deficient mouse models. We further reveal that Eda signaling is predominantly mediated by the p50/RelB subclass of NF-kB in both human keratinocytes and mouse skin. Consistent with the phenotype of BAF250a cKO mice, downregulation of RelB, Tfg, or BAF45d arrests the growth of Meibomian gland germs in organ cultures. Transcription profiling consistently identifies several target genes regulated by Eda, RelB and SWI/SNF. In particular, we show that both RelB and SWI/SNF are indispensable for transcription of Eda target Ltb. Chromatin remodeling SWI/SNF recruited to specific gene loci by Eda-activated RelB thus provides a mediation model between an initiation signal and gene activation in organogenesis.
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