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Targeted proteomics analysis of Cutaneous Lupus Erythematosus patient interstitial skin fluid and plasma

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Homo sapiens

PROVIDER: GSE182302 | GEO | 2024/01/31

REPOSITORIES: GEO

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Targeted proteomics analysis of Cutaneous Lupus Erythematosus patient interstitial skin fluid and plasma (Inflammation panel data)

Project description:We performed a targeted proteomics analysis of Cutaneous Lupus Erythematosus (CLE) patient blister biopsies and plasma using Olink Proteomics panels to validate the blister biopsy technique using previously identified biomarkers, to confirm protein-level expression of biomarkers previously identified at the RNA level, and to identify new biomarkers of disease.

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Targeted proteomics analysis of Cutaneous Lupus Erythematosus patient interstitial skin fluid and plasma (Neuro Exploratory panel data)

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Targeted proteomics analysis of Cutaneous Lupus Erythematosus patient interstitial skin fluid and plasma

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Targeted proteomics analysis of Cutaneous Lupus Erythematosus patient interstitial skin fluid and plasma (Neuro Exploratory panel data)

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Spatial transcriptomics of Cutaneous and Systemic Lupus Erythematosus skin

Project description:We performed spatial transcriptomics on a case series of different clinical subtypes of cutaneous lupus erythematosus including acute cutaneous lupus erythematosus (malar rash, systemic lupus erythematosus). Our goals were to (1) determine which differentially expressed genes (DEGs) could be attributed to specific cell populations in specific locations within the tissue, (2) determine if spatial transcriptomics could better distinguish between CLE clinical subtypes than bulk RNA approaches and (3) examine potential cell-cell communication pathways within the skin lesions.

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Immunogenetics of cutaneous lupus erythematosus.

Project description:Purpose of reviewSystemic lupus erythematosus (SLE) is the prototypic autoimmune condition, often affecting multiple organ systems, including the skin. Cutaneous lupus erythematosus (CLE) is distinct from SLE and may be skin limited or associated with systemic disease. Histopathologically, the hallmark of lupus-specific manifestations of SLE and CLE is an interface dermatitis. The cause of SLE and CLE is likely multifactorial and may include shared genetic factors. In this review, we will discuss the genetic findings related to the cutaneous manifestations of SLE and isolated CLE, with a particular focus on the lupus-specific CLE subtypes.Recent findingsSeveral major histocompatibility complex and nonmajor histocompatibility complex genetic polymorphisms have been identified which may contribute to the cutaneous manifestations of SLE and to CLE. Most of these genetic variants are associated with mechanisms attributed to the pathogenesis of SLE, including pathways involved in interferon and vitamin D regulation and ultraviolet light exposure. Although there is overlap between the genetic factors associated with SLE and CLE, there appear to be unique genetic factors specific for CLE.SummaryImproved understanding of the genetics of CLE may lead to the creation of targeted therapies, improving outcomes for patients with this challenging dermatologic condition.

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Emerging Therapies in Cutaneous Lupus Erythematosus

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Genome-wide transcriptional profiling data from skin of chronic cutaneous lupus erythematosus (CCLE) patients.

Project description:Cutaneous features manifest as a wide range of clinically significant, and in many cases disfiguring and debilitating components of lupus erythematosus (LE). While the definitive etiology is in question, multifactorial and polygenic causes are likely to be involved in the production of the characteristic anti-nuclear autoantibody titers and immune cell infiltrates observed in chronic cutaneous LE (CCLE) [1-3]. There is significant overlap of patients with systemic and cutaneous manifestations of LE, which suggests shared pathways and genetic background between the two. We have employed genome-wide microarray technology along with pathway-based analyses to investigate transcriptional differences between lesional and non-lesional skin from CCLE patients to address existing gaps in knowledge regarding disease mechanisms in lupus [4].

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Gene expression in cutaneous lupus erythematosus

Project description:Lesional skin biopsies were taken from patients with active, untreated lupus skin disease (chronic discoid lupus erythematosus, CDLE, n=6; subacute cutaneous lupus erythematosus, SCLE, n=5). Healthy control specimens (HC) were obtained from healthy skin of 5 patients undergoing plastic surgery. In every case, two 4mm punch biopsies were taken. One was flash-frozen in liquid nitrogen and afterwards processed for mRNA isolation. The second biopsy was fixed in 5% formalin solution overnight, and was proceeded for histological investigation.The one-color Agilent 60-mer oligo microarray (Agilent, Santa Clara, CA) was used for gene expression analyses. Statistical analyses were performed using the Agilent Feature Extraction Softwareâ¢ and the Rosetta Resolverâ¢ gene expression data analysis system. The presented gene list (Table S1) includes normalized sample/ control log10-ratios (expression > 2-fold enhanced, p<0.01).

2017-02-24 | E-MTAB-5542 | biostudies-arrayexpress

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