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Links from GEO DataSets

Items: 7

1.
Full record GDS4606

Post-therapeutic relapse of psoriasis: whole skin punch biopsies

Analysis of skin samples from 4 responding patients who relapsed following efalizumab treatment for psoriasis: baseline non-lesional and lesional samples; week 12 post-treatment and relapse samples. Results provide insight into molecular mechanisms underlying post-therapeutic relapse of psoriasis.
Organism:
Homo sapiens
Type:
Expression profiling by array, transformed count, 4 disease state, 4 individual, 2 time sets
Platform:
GPL571
Series:
GSE30768
14 Samples
Download data: CEL
2.

Post-therapeutic relapse of psoriasis associated with CD11a blockade is associated with T cells and inflammatory myeloid DCs

(Submitter supplied) To understand the development of new psoriasis lesions, we studied a group of moderate-to-severe psoriasis patients who experienced a relapse after ceasing efalizumab (anti-CD11a, Raptiva, Genentech). There were increased CD3+ T cells, neutrophils, CD11c+ and CD83+ myeloid DCs, but no increase in CD1c+ resident myeloid DCs. In relapsed lesions, there were many CD11c+CD1c-, inflammatory myeloid DCs identified by TNFSF10/TRAIL, TNF, and iNOS. more...
Organism:
Homo sapiens
Type:
Expression profiling by array
Dataset:
GDS4606
Platform:
GPL571
14 Samples
Download data: CEL
Series
Accession:
GSE30768
ID:
200030768
3.

Transcriptome of inflammatory myeloid DCs in psoriasis

(Submitter supplied) Background: Previous work has identified CD11c+CD1c- dendritic cells (DCs) as the major ”inflammatory” dermal DC population in psoriasis vulgaris and CD1c+ DCs as the “resident” cutaneous DC population. Objective: To further define molecular differences between these two myeloid dermal DC populations. Methods: Inflammatory and resident DCs were single-cell sorted from psoriasis lesional skin biopsies, and gene array expression profiling was performed. more...
Organism:
Homo sapiens
Type:
Expression profiling by array
Platform:
GPL571
7 Samples
Download data: CEL
Series
Accession:
GSE20264
ID:
200020264
4.

A single intradermal injection of IFN-γ induces a psoriasis-like state in both non-lesional psoriatic and healthy skin

(Submitter supplied) Psoriasis is a chronic, debilitating, immune-mediated inflammatory skin disease. As IFN-γ is involved in many cellular processes, including activation of T cells and dendritic cells (DCs), antigen processing and presentation, cell adhesion and trafficking, and cytokine and chemokine production, IFN-γ-producing Th1 cells were proposed to be integral to the pathogenesis of psoriasis. Recently, IFN-γ was shown to enhance IL-23 and IL-1 production by DCs and subsequently induce Th17 cells, important contributors to the inflammatory cascade in psoriasis lesions. more...
Organism:
Homo sapiens
Type:
Expression profiling by array
Dataset:
GDS4607
Platform:
GPL571
60 Samples
Download data: CEL
Series
Accession:
GSE32407
ID:
200032407
5.
Full record GDS4607

Psoriasis non-lesional skin response to interferon-γ

Analysis of non-lesional (NL) skin of psoriasis patients 24 hrs after a single intradermal injection of interferon-γ (IFN-γ) to the NL skin. Results suggest that IFN-γ may prime an inflammatory environment in the skin that shares many features with psoriasis.
Organism:
Homo sapiens
Type:
Expression profiling by array, transformed count, 2 disease state, 20 individual, 3 protocol, 2 time sets
Platform:
GPL571
Series:
GSE32407
60 Samples
Download data: CEL
6.

Effective treatment of psoriasis with etanercept is linked to suppression of IL17 signaling, not immediate response TNF

(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
Series
Accession:
GSE11903
ID:
200011903
7.

Molecular and cellular profilling of scalp psoriasis reveals differences and similarities compared to skin psoriasis

(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
Series
Accession:
GSE75343
ID:
200075343
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