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Microarray result of human skin derived from normal, atopic dermatitis and atopic march patients

ABSTRACT: Microarray result of human skin derived from normal, atopic dermatitis and atopic march patients

PROVIDER: PRJNA610234 | ENA |

REPOSITORIES: ENA

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Microarray result of human skin derived from normal, atopic dermatitis and atopic march patients

Project description:The patho-mechanism of atopic dermatitis showing systemic involvement may be explained by Th17-related cytokines induced by FABP5 through systemic sensitization to a major allergen of a house dust mite.

2020-03-05 | GSE146352 | GEO

Effect of topical emollient on the development of atopic dermatitis and atopic march in a mice model

Project description:To investigate the effect of emollient on atopic march in a murine model of chronic atopic dermatitis (AD). Mice were divided into 3 groups and treated with topical calcipotriol and ovalbumin alone or with a linoleic acid-ceramide-containing emollient. After 28 days, clinical, histological, and transcriptomic analyses were performed in skin lesions, lung and serum. Calcipotriol combined with ovalbumin induced a typical AD model with concomitant increased expression of Th2 and basophil-related genes in the lung. Compared to AD group, emollient group: 1) Skin: clinical severity and inflammatory cell infiltration were significantly reduced and transcriptomic analysis revealed significant downregulation of AD-related genes (286 of 1450 differentially expressed genes (DEGs)) including those related to innate inflammation (S100a8/a9, Il1b, Defb3/6, Mmp12), chemokines (Cxcl1/3, Ccl3/4) and barrier (Krt2/6b/80, Serpinb12, Lce3e, Sprr2). DEGs down-regulated by emollient were enriched in mitochondrial OXPHOS-related pathways, while up-regulated DEGs were mainly enriched in axon guidance, tight junctions, as shown by KEGG analyses. 2) Serum: total IgE and TSLP levels were significantly decreased, and IL-4 levels showed a decreasing tendency. 3) Lung: 187 of 275 upregulated DEGs were significantly downregulated in lung tissue including genes involved in cytokine and cytokine receptor interaction (Cxcl2/Cxcr2, Ccl2/3, Csf3r, etc.) and basophil activation (Mcpt8, Cd200r3, Ms4a2). Thus, topical emollient not only reduces skin inflammation and maintain skin barrier homeostasis by inhibiting the mitochondrial respiratory chain, but also limits systemic inflammation by decreasing TSLP and IgE levels. Moreover, it reduces respiratory chemokine production and basophil infiltration and activation, providing a molecular basis for blocking the atopic march.

2023-03-29 | GSE222019 | GEO

Microarray result of human T cells. T cells were harvested from atopic march patients' peripheral blood mononuclear cells (PBMCs)

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Microarray transcriptome profiling of atopic dermatitis and psoriasis patients compared to healthy volunteers.

Project description:Characteization host-microbiome interactions in patients with allergic (model: atopic dermatitis) and autoimmune (model: psoriasis) diseases by integration of microarray transcriptome data with 16S microbial profiling. 6mm punch biopsies were collected from the skin of atopic dermatitis and psoriasis patients alongside healthy volunteers, and subjected to analysis using Affymetrix Human Gene ST 2.1 arrays.

2019-09-11 | E-MTAB-8149 | biostudies-arrayexpress

mRNA expression of Atopic Dermatitis keratinocytes

Project description:mRNA array analysis of total RNA from primary kertinocytes from three healthy controls, three atopic dermatitis patients and three psoriasis patients was carried out

2012-06-01 | E-MTAB-728 | biostudies-arrayexpress

Genomic profiling of the overlap phenotype between psoriasis and atopic dermatitis

Project description:Clinical overlaps between psoriasis and atopic dermatitis are sometimes undiscernible, and there is no consensus whether to treat the overlap phenotype as psoriasis or atopic dermatitis. We enrolled patients diagnosed with either psoriasis or atopic dermatitis, and clinically re-stratified them into classic psoriasis, classic atopic dermatitis, and the overlap phenotype between psoriasis and atopic dermatitis. We compared gene expression profiles of lesional and nonlesional skin biopsy tissues between the three comparison groups. Global mRNA expression and T-cell subset cytokine expression in the skin of the overlap phenotype were consistent with the profiles of psoriasis and different from the profiles of atopic dermatitis. Unsupervised k-means clustering indicated that the best number of distinct clusters for the total population of the three comparison groups was two, and the two clusters of psoriasis and atopic dermatitis were differentiated by gene expression. Our study suggests that clinical overlap phenotype between psoriasis and atopic dermatitis has dominant molecular features of psoriasis, and genomic biomarkers can differentiate psoriasis and atopic dermatitis at molecular levels in patients with a spectrum of psoriasis and atopic dermatitis.

2023-06-24 | GSE182740 | GEO

TWEAK Upregulates atopic dermatitis related genes

Project description:TWEAK Upregulates atopic dermatitis related genes in human kearatinocytes

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Effect of topical emollient on the development of atopic dermatitis and atopic march in a mice model

Project description:Effect of topical emollient on the development of atopic dermatitis and atopic march in a mice model

| PRJNA917316 | ENA

Atopic Dermatitis Research Network

Project description:Atopic Dermatitis Research Network

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AhR links air pollution and atopic dermatitis via Artemin induction

Project description:Atopic dermatitis is increasing worldwide, correlating with air pollutions. Various organic components of pollutants activate transcription factor AhR (aryl-hydrocarbon receptor). We have established AhR-CA mice, whose keratinocytes express constitutive-active AhR, and these mice developed atopic dermatitis-like frequent scratching and allergic inflammation. In this study we performed ChIP-seq analyses and identified keratinocyte-specific AhR target genes, including inflammatory cytokines Tslp and IL33, and neurotrophic factor Artemin. While AhR-CA mice exhibited epidermal hyperinnervation and alloknesis leading to hypersensitivity to pruritus, blockade of Artemin alleviated these phenotypes. AhR-CA mice showed scratching-induced barrier insufficiency and enhanced sensitization to epicutaneously-applied antigens, recapitulating human atopic dermatitis. Consistently, AhR activation and Artemin expression was detected in the epidermis of atopic dermatitis patients and keratinocytes exposed to air pollutants. Thus, AhR in keratinocytes senses the environmental stimuli and responds to them through moderating inflammation. We propose a mechanism in which air pollution induces atopic dermatitis through AhR activation.

2016-11-13 | GSE72449 | GEO

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