GEO DataSets

(Submitter supplied) To explore the psoriasis phenotype and pathways involved in psoriasis, we characterized gene expression in lesional and non-lesional skin from psoriasis patients. Furthermore, we explored the effects of various doses of brodalumab on lesional skin over time.

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS5420

Platform:

GPL570

99 Samples

Download data: CEL

Analysis of non-lesional and lesional psoriatic skins for up to 43 days following treatment with various doses of brodalumab, a human IgG2 mAb that selectively binds and blocks signaling through IL-17RA. Results provide insight into the molecular effect of blocking IL-17 signaling in psoriatic skin.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 3 agent, 4 dose, 25 individual, 4 time, 2 tissue sets

Platform:

GPL570

Series:

GSE53552

99 Samples

Download data: CEL

(Submitter supplied) IL-17 antagonists induce impressive clinical benefit in psoriasis, but it is unknown too what extent cellular and molecular characteristics of psoriasis are suppressed by a clinically relevant dose and schedule of any IL-17 antagonist. Examine the effects the IL-17A receptor antagonist brodalumab, on the clinical and molecular characteristics of psoriasis, including IL-17 dependent gene-sets.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

565 Samples

Download data: CEL

(Submitter supplied) A gene expression profiling study was conducted in which skin biopsy samples were collected for RNA extraction and hybridization to microarrays from patients with moderate-to-severe psoriasis who participated in the phase 1, guselkumab first-in-human randomized, double-blind, placebo-controlled trial. At week 12, significant reductions in psoriasis gene expression were observed in guselkumab-treated patients.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL13158

59 Samples

Download data: CEL

(Submitter supplied) We sought to provide a comprehensive evaluation of the effects of TNF-α and IL-17 on the keratinocyte gene profile in order to identify genes that might be co-regulated by these cytokines. We then sought to determine how genes that were synergistically activated by both cytokines relate to the psoriasis transcriptome. Here, we identified 160 unique genes that were synergistically up-regulated by IL-17 and TNF-α and 188 unique genes where the two cytokines had at least an additive effect. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6947

22 Samples

Download data: TXT

(Submitter supplied) The success of TNF inhibitors for treatment of psoriasis and other inflammatory diseases was previously attributed to blockade of innate immunity. In a clinical trial using etanercept TNF blocking agent to treat psoriasis vulgaris, we used affymetrix gene arrays to analyze broad gene profiles in lesional skin at multiple timepoints during drug treatment (baseline, and weeks 1, 2, 4 and 12) compared to non-lesional skin. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL571

89 Samples

Download data: CEL

(Submitter supplied) The goal of this study is to characterize the molecular response of HS patients to brodalumab therapy in skin and serum, and to identify biomarkers of treatment response. Ten participants that received 210 mg/1.5mL brodalumab subcutaneously at week 0, 1, 2, 4 and every 2 weeks after were included in this molecular profiling study (NCT03960268). RNA-sequencing of nonlesional, perilesional and lesional HS skin biopsies was assessed.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24676

75 Samples

Download data: TXT

(Submitter supplied) Tofacitinib is an oral Janus kinase inhibitor being investigated for psoriasis. We sought to elucidate the molecular mechanisms underlying the clinical efficacy of tofacitinib in patients with psoriasis. Twelve patients with plaque psoriasis were randomized (3:1) to receive 10 mg of tofacitinib or placebo twice daily for 12 weeks. Biopsy specimens were taken from nonlesional (baseline) and lesional (baseline, days 1 and 3, and weeks 1, 2, 4, and 12) skin. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

95 Samples

Download data: CEL

(Submitter supplied) The interleukin (IL)-23/T-helper type 17 cell axis is a target for psoriasis. The tyrosine kinase 2 (TYK2)/Janus kinase 1 (JAK1) inhibitor, PF 06700841, will directly suppress TYK2-dependent IL-12 and IL-23 signaling and JAK1-dependent signaling in cells expressing these signaling molecules, including T cells and keratinocytes. This clinical study sought to define the inflammatory gene and cellular pathways through which PF 06700841 improves the clinical manifestations of psoriasis. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

105 Samples

Download data: CEL

(Submitter supplied) We studied psoriasis skin transcriptome modification induced by systemic IL-17A blockade with microarray analyses of total skin as part of a randomized placebo-controlled clinical trial (ClinicalTrial.gov identifier: NCT03131570)

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

69 Samples

Download data: CEL

(Submitter supplied) Durable psoriasis improvement has been reported in a subset of psoriasis patients after treatment withdrawal of biologics blocking IL-23/Type 17 T-cell (T17) autoimmune axis. However, it is not well understood if systemic blockade of the IL-23/T17 axis promotes immune tolerance in psoriasis skin. The purpose of the study was to find translational evidence that systemic IL-17A blockade promotes regulatory transcriptome modification in human psoriasis skin immune cell subsets. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL18573 GPL24676

28 Samples

Download data: MTX, TSV

(Submitter supplied) Scalp psoriasis shows a variable clinical spectrum and in many cases poses a great therapeutic challenge. However, it remains unknown whether the immune response of scalp psoriasis differs from understood pathomechanisms of psoriasis on other skin areas. We sought to determine the cellular and mollecular phenotype of scalp psoriasis by performing a comparative analysis of scalp vs skin using lesional and nonlesional samples from 20 Caucasian subjects with untreated moderate to severe psoriasis and significant scalp involvement, and 10 control subjects without psoriasis. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL571

45 Samples

Download data: CEL

(Submitter supplied) Psoriasis is a chronic inflammatory skin disease related to immune, whose complexity of molecular mechanisms is still not fully clear. RNA sequencing has been widely applied in various fields including biological medicine. According to the bioinformatics analysis of differential genes, biomarkers and drug targets have been discovered for the diagnosis and treatment of diseases. Besides, the pathological mechanisms of disease and functions of gene can be evaluated. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17303

27 Samples

Download data: TXT

(Submitter supplied) In psoriasis, inflammation and epidermal hyperplasia are thought to be controlled by T cell-derived cytokines. Evidence now suggests that Th17 and Th22 cells infiltrate psoriasis lesions and by secreting IL-17 and IL-22, respectively, may drive disease-specific gene or cell responses. While studies in model systems indicate that IL-22 has a dominant pathogenic role, there is evolving evidence that IL-17 contributes to features of psoriasis. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS4458

Platform:

GPL571

30 Samples

Download data: CEL

Analysis of psoriatic skin biopsies from patients treated with 150mg of subcutaneous anti-IL-17 mAb ixekizumab (previously LY2439821) at weeks 0 and 2. IL-17 blockade resulted in a high-grade clinical improvement in psoriasis. Results provide insight into the role of IL-17 in disease pathogenesis.

Organism:

Homo sapiens

Type:

Expression profiling by array, transformed count, 2 agent, 17 individual, 2 time sets

Platform:

GPL571

Series:

GSE31652

30 Samples

Download data: CEL

(Submitter supplied) Background: Based on the mounting evidence that Type 17 T-cells (T17 cells) and increased IL-17 play a key role in driving hidradenitis suppurativa (HS) lesion development, biologics previously used in psoriasis that block signaling of IL-17A and/or IL-17F isoforms have been repurposed to treat HS. Objective: Our aim was to characterize the transcriptome of HS T17 cells compared to the transcriptome of psoriasis T17 cells, and their ligand-receptor interactions with neighborhood immune cell subsets. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL24676 GPL18573 GPL30173

36 Samples

Download data: MTX, TSV

(Submitter supplied) Background: In present study we performed whole transcriptome analysis in plaque psoriasis patients and compared lesional skin with non-lesional skin and with the skin from healthy controls. We sequenced total RNA from 12 lesional (LP), 12 non-lesional (NLP) and from 12 normal (C) skin biopsies. Results: Compared with previous gene expression profiling studies we had three groups under analysis - LP, NLP and C. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL16288

36 Samples

Download data: TXT

(Submitter supplied) Keratinocyte (KC) hyper-proliferation and epidermal thickening are characteristic features of psoriasis lesions, but the specific contributions of KCs to plaque formation are not fully understood. This study used RNA-seq to investigate the transcriptome of primary monolayer KC cultures grown from lesional (PP) and non-lesional (PN) biopsies of psoriasis patients and control subjects (NN). Whole skin biopsies from the same subjects were evaluated concurrently. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL10999

24 Samples

Download data: TXT

(Submitter supplied) Mild vs. severe psoriasis vulgaris is often distinguished by the Psoriasis Area and Severity Index. It is widely assumed that severe psoriasis involves higher levels of skin inflammation, but comparative molecular profiles of mild vs. severe disease have not been previously performed. In this study, we used gene arrays to phenotype North American patients with mild psoriasis vs. severe psoriasis.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

33 Samples

Download data: CEL

(Submitter supplied) The IL-23/IL-17 immune axis is of central importance in psoriasis. However, the contribution of IL-17 family cytokines other than IL-17A to drive skin inflammation in psoriasis has not been fully established. To further elucidate the role of individual IL-17 family cytokines in psoriasis, we investigated their expression and localization in psoriasis skin at the mRNA and protein level. Moreover, we investigated the gene expression signatures induced by individual IL-17 family cytokines in human skin ex vivo as well as modulation of responses induced by the combination of IL-17 family cytokines in human keratinocytes by brodalumab, a human monoclonal antibody targeting the IL-17RA, versus the IL-17A blocking antibody ixekizumab. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL17692

60 Samples

Download data: CEL, XLSX