Transcriptomic Profiling of Scleroderma Monocytes Reveals Links with Cardiovascular Complications, Implicating Notch and Interferon Pathways
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1295412 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Objectives: Recent research has highlighted the critical role of monocytes and macrophages in driving both inflammatory and fibrotic processes in systemic sclerosis (SSc). This study seeks to elucidate the gene expression profiles of SSc monocytes and their potential links to disease complications, with the ultimate goal of uncovering novel therapeutic targets. Methods: 48 SSc patients and 15 controls were recruited and monocytes were isolated using CD14+ magnetic beads. Total RNA was extracted and bulk RNA-seq analysis was performed. Differential gene expression followed by unsupervised hierarchical clustering and pathway analysis were conducted and correlations with clinical features were analyzed. Interferon signature score (IFN6) was calculated using the log transformed values of 6 genes (IFIT3, IFIT2, MX1, IFIH1, STAT2, and NCF1). Results: We identified four distinct patient subgroups, relative to normal, two with inflammatory and two with non-inflammatory gene profiles. The inflammatory subgroups exhibited high expression of interferon-related genes and included all SSc patients with pulmonary hypertension and most with cardiac involvement. In these patients, IFN6 was markedly elevated and showed a significant correlation with global longitudinal strain - GLS (r=-0.5, p=0.006), a key indicator of cardiac function. Furthermore, pathway analysis identified an enrichment of the Notch signaling pathway among genes whose overexpression correlated with impaired GLS. Conclusion: These findings unveil a potential new mechanistic link between interferon activity, Notch signaling, and cardiac complications in SSc, offering new insights into disease pathogenesis and potential therapeutic targets.
2025-08-01 | GSE303431 | GEO
Project description:Pisolithus & Scleroderma sequences
| PRJEB101132 | ENA
Project description:RNA expression profiling was carried out for systemic sclerosis (scleroderma) on skin biopsies obtained from both diffuse scleroderma (dcSSc) and limited scleroderma (lcSSc) subjects patients and compared to normal subjects. The patient group comprised of 4 dcSSc and 2 lcSSc subjects, all of whom were Caucasian and belonged to the age range of 42-73 (Mean age = 61.6). Patient sample set consisted of 3 females and 3 males. Race matched female volunteers from the same geographical area were recruited as controls (n = 4) and belonged to the age range of 41-62 (Mean age = 52).
2015-03-25 | E-MEXP-1214 | biostudies-arrayexpress
Project description:Fibroblast were isolated from either back or forearm punch biopsies taken by Dr. Kari Connolly(UCSF) from either normal control patients, patients with a diagnosis of Systemic Sclerosis with Diffuse Scleroderma and patients with a diagnosis of morphea. Scleroderma fibroblast were grown to confluence, media was changed and the RNA prepared from the cells 48 hrs later (to avoid serum responsive genes). A disease state experiment design type is where the state of some disease such as infection, pathology, syndrome, etc is studied. Keywords: disease_state_design
2005-12-21 | GSE3886 | GEO
Project description:Fibroblast were isolated from either back or forearm punch biopsies taken by Dr. Kari Connolly(UCSF) from either normal control patients, patients with a diagnosis of Systemic Sclerosis with Diffuse Scleroderma and patients with a diagnosis of morphea. Scleroderma fibroblast were grown to confluence, media was changed and the RNA prepared from the cells 48 hrs later (to avoid serum responsive genes). A disease state experiment design type is where the state of some disease such as infection, pathology, syndrome, etc is studied. User Defined
2005-12-20 | E-GEOD-3886 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the following subset Series: GSE3886: Scleroderma Morphea Normal Fibroblasts GSE3887: Scleroderma Architecture Cell Lines Abstract: We used DNA microarrays representing >12,000 human genes to characterize gene expression patterns in skin biopsies from individuals with a diagnosis of systemic sclerosis with diffuse scleroderma. We found consistent differences in the patterns of gene expression between skin biopsies from individuals with scleroderma and those from normal, unaffected individuals. The biopsies from affected individuals showed nearly indistinguishable patterns of gene expression in clinically affected and clinically unaffected tissue, even though these were clearly distinguishable from the patterns found in similar tissue from unaffected individuals. Genes characteristically expressed in endothelial cells, B lymphocytes, and fibroblasts showed differential expression between scleroderma and normal biopsies. Analysis of lymphocyte populations in scleroderma skin biopsies by immunohistochemistry suggest the B lymphocyte signature observed on our arrays is from CD20+ B cells. These results provide evidence that scleroderma has systemic manifestations that affect multiple cell types and suggests genes that could be used as potential markers for the disease Refer to individual Series
2006-03-07 | E-GEOD-4385 | biostudies-arrayexpress