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Knockout of the Arp2/3 complex in epidermis causes a psoriasis-like disease hallmarked by hyperactivation of transcription factor Nrf2 [Keratinocytes ssRNA-Seq]

ABSTRACT: Knockout of the Arp2/3 complex in epidermis causes a psoriasis-like disease hallmarked by hyperactivation of transcription factor Nrf2 [Keratinocytes ssRNA-Seq]

PROVIDER: PRJNA419517 | ENA |

REPOSITORIES: ENA

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Knockout of the Arp2/3 complex in epidermis causes a psoriasis-like disease hallmarked by hyperactivation of transcription factor Nrf2 [Epidermis ssRNA-Seq]

Project description:Arp2/3 complex assembles branched actin filaments key to many cellular processes, but its organismal roles remain poorly understood. Here we employed conditional arpc4 knockout mice to study the function of the Arp2/3 complex in the epidermis.We found that depletion of the Arp2/3 complex by knockout of arpc4 results in skin abnormalities at birth that evolve into a severe psoriasis-like disease hallmarked by hyperactivation of transcription factor Nrf2. Knockout of arpc4 in cultured keratinocytes was sufficient to induce nuclear accumulation of Nrf2, upregulation of Nrf2-target genes and decreased filamentous actin levels. Furthermore, pharmacological inhibition of the Arp2/3 complex unmasked the role of branched actin filaments in Nrf2 regulation. Consistently, we unveiled that Nrf2 associates with the actin cytoskeleton in cells and binds to filamentous actin in vitro Finally, we discovered that Arpc4 is downregulated in both human and mouse psoriatic epidermis. Thus, the Arp2/3 complex affects keratinocytes' shape and transcriptome through an actin-based cell-autonomous mechanism that influences epidermal morphogenesis and homeostasis.

2017-11-23 | GSE107265 | GEO

Knockout of the Arp2/3 complex in epidermis causes a psoriasis-like disease hallmarked by hyperactivation of transcription factor Nrf2 [Keratinocytes ssRNA-Seq]

2017-11-23 | GSE107264 | GEO

Knockout of the Arp2/3 complex in epidermis causes a psoriasis-like disease hallmarked by hyperactivation of transcription factor Nrf2 [Epidermis ssRNA-Seq]

Project description:Knockout of the Arp2/3 complex in epidermis causes a psoriasis-like disease hallmarked by hyperactivation of transcription factor Nrf2 [Epidermis ssRNA-Seq]

| PRJNA419518 | ENA

Knockout of the Arp2/3 complex in epidermis causes a psoriasis-like disease hallmarked by hyperactivation of transcription factor Nrf2

Project description:Knockout of the Arp2/3 complex in epidermis causes a psoriasis-like disease hallmarked by hyperactivation of transcription factor Nrf2

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Project description:We took advantage of ssRNA-seq technology to deeply sequence mRNAs of the model plant species Oryza sativa ssp.japonica cv Nipponbare with clear transcriptional orientations for assessing rice cis-NATs at the best possible resolution. We also deeply sequenced rice small RNAs from the same tissues as that for preparing mRNAs to investigate rice cis-NAT pairs that potentially give rise to endogenous short interfering RNAs from their overlapping regions under normal and stress conditions.

2011-12-28 | E-MTAB-721 | biostudies-arrayexpress

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Project description:unclassified ssRNA positive-strand viruses

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Knockout of the Arp2/3 complex in epidermis causes a psoriasis-like disease hallmarked by hyperactivation of transcription factor Nrf2

Project description:This SuperSeries is composed of the SubSeries listed below.

2017-11-23 | GSE107266 | GEO

90 min Met4 hyperactivation ChIP-chip

Project description:Identification of in vivo binding targets of Met4 and Met32 by conducting chromatin immunoprecipitation studies using genomic tiling arrays (ChIP-on-chip 4X44K whole yeast genome arrays by Agilent) following 90 minutes Met4 hyperactivation.

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