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RNAseq of epidermis reconstructed from TSG-6-/- and TSG-6+/+ immortalized N/TERT keratinocytes and stimulated or not with interleukins 4 and 13 for 48h

ABSTRACT: RNAseq of epidermis reconstructed from TSG-6-/- and TSG-6+/+ immortalized N/TERT keratinocytes and stimulated or not with interleukins 4 and 13 for 48h

PROVIDER: PRJEB43041 | ENA |

REPOSITORIES: ENA

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RNAseq of epidermis reconstructed from TSG-6-/- and TSG-6+/+ immortalized N/TERT keratinocytes and stimulated or not with interleukins 4 and 13 for 48h

Project description:TNFα-stimulated gene 6 (TSG-6) is an anti-inflammatory protein. In human epidermis, TSG-6 is secreted in extracellular matrix where it interacts with hyaluronan (HA). However, their functions are not well understood. In this study, immortalized N/TERT keratinocytes were edited by CRISPR/Cas9, used to reconstruct in vitro epidermis (RHE) and stimulated or not with interleukins 4 and 13 for 48h to mimic atopic dermatitis (AD). Two TSG-6-/- clones (respectively TSG-6-/- (a) and TSG-6-/- (b)) harboring major deletions in both alleles were selected and compared to TSG-6+/+ cells. Epidermis reconstructed from TSG-6-/- (a) and TSG-6-/- (b) exhibit normal differentiation process and morphology but show an increased HA leakage in the underlying culture medium of both TSG-6-/- RHE compared to TSG-6+/+ tissues, especially in conditions that mimic AD. While IL-4/13 treatment of RHE induces regulation of genes associated with AD, the absence of TSG-6 don’t seem to show any major transcriptomic regulation.

2021-12-30 | E-MTAB-10095 | biostudies-arrayexpress

Expression data from reconstructed human epidermis

Project description:Gene expression profiles of reconstructed human epidermis following exposure to interleukins 4, 13, and 25 for 48 hours We used microarrays to study the changes in gene expression of reconstructed human epidermis after 48 hours of exposure to interleukins 4, 13, and 25

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Expression data from reconstructed human epidermis

Project description:Gene expression profiles of reconstructed human epidermis following exposure to lactic acid or methylparaben for 1, 6, or 24 hours We used microarrays to study the changes in gene expression of reconstructed human epidermis after exposure to lactic acid or methylparaben during 1, 6, and 24 hours

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Expression data from reconstructed human epidermis

Project description:Expression data from reconstructed human epidermis

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Expression data from reconstructed human epidermis

Project description:Expression data from reconstructed human epidermis

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Microarray of reconstructed epidermis from skin models made with cells from African and Caucasian Skin type

Project description:The aim of this study was to analyze the in vitro biological epidermal processes occurring in reconstructed skins using cells from breast skin of African and Caucasian skin type color. A exploration of mRNA expression levels in the epidermis of reconstructed skin was undertaken to elucidate the differential in vitro functions of keratinocytes. The reconstruction of skin models was made with keratinocytes and fibroblasts from four different donors per skin type and experiments were conducted in triplicate for each donor. At the end of culture, the epidermis from reconstructed skin was manually separated from the dermal equivalent part in order to analyse gene expression in keratinocytes only. RNA samples were labelled with biotin and hybridation was performed on Affymetrix Human Genome U133 + PM Array Plates.

2020-08-10 | E-MTAB-9433 | biostudies-arrayexpress

Inflammation modulates intercellular adhesion and mechanotransduction in human epidermis via ROCK2

Project description:The cytoskeletal mechanisms regulating inflammatory responses in the epidermis are not well described. Here we addressed this question by inducing a psoriatic phenotype in human keratinocytes and reconstructed human epidermis using a cytokine stimulation model.We report the results from RNA-seq in N/TERT keratinocytes treated with M5 or both M5 and ROCK2 inhibitor KD025.

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Proteomic study of in vitro epidermis of reconstructed skins made with cells from African or Caucasian skin type

Project description:This study aimed to understand the in vitro behaviour of epidermal cells of African and Caucasian skin types in the context of 3D reconstructed skin. Reconstructed skins epidermis made with cells isolated from skin of African or Caucasian skin type exhibited high differences in stratification and differentiation. The objective of this study is a first global approach to identify at the protein level the differences between reconstructed skins.

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PITX1 suppresses TERT transcription

Project description:Using microcell-mediated chromosome transfer (MMCT) into the mouse melanoma cell line, B16F10, we have previously found that human chromosome 5 carries a gene, or genes, that can negatively regulate TERT expression. To identify the gene responsible for the regulation of TERT transcription, we performed cDNA microarray analysis using parental B16F10 cells, telomerase negative B16F10 microcell hybrids with a human chromosome 5 (B16F10MH5), and its revertant clones (MH5R) with reactivated telomerase. Here we report the identification of PITX1, whose restoration leads to the downregulation of mouse tert (mtert) transcription, as a TERT suppressor gene. Additionally, both human TERT (hTERT) and mouse TERT (mtert) promoter activity can be suppressed by PITX1. We showed that three and one binding sites, respectively, within the hTERT and mtert promoters that express a unique conserved region are responsible for the transcriptional activation of TERT. Furthermore, we showed that PITX1 binds to the TERT promoter both in vitro and in vivo. Thus, PITX1 suppresses TERT transcription through direct binding to the TERT promoter, which ultimately regulates telomerase activity.

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PITX1 suppresses TERT transcription

2010-09-10 | E-GEOD-23216 | biostudies-arrayexpress

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