MiRNA expression in RA and OA human fibroblast-like synoviocytes
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE72564 | GEO | 2015/09/01
SECONDARY ACCESSION(S): PRJNA294333
REPOSITORIES: GEO
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Project description:Homo sapiens microRNAs (miRNAs) are invovolved in the regulation of multiple cellular processes and have been linked to many conditions in humans, including rheumatic diseases such as rheumatoid arthritis (RA). Here, we used high throughput expression analysis to assess the overall miRNA expression level in FLS isolated from RA patients in comparison with miRNA expressed in FLS from osteoarthritic (OA) patients. FLS isolated from synovial biopsies from 4 RA and 4 OA patients were cultivated for 4 passages. Cells were lysed and RNA purified (Trizol). Then miRNA expression was performed using the Qiagen Human miRNome miScript miRNA PCR Array (V16.0, 384-well) profiling the expression of the 1066 most abundantly expressed and best characterized miRNA sequences in the human miRNA genome (miRNome) as annotated in miRBase Release 16 (www.mirbase.org).
2015-09-01 | E-GEOD-72564 | biostudies-arrayexpress
Project description:Rheumatoid arthritis (RA) is a chronic systemic inflammatory disease involving primarily the synovial membranes and articular structures of multiple joints. A hallmark of RA is the pseudo-tumoral expansion of fibroblast-like synoviocytes (FLS), as these cells invade and finally destroy the joint structure. RA FLS have been therefore proposed as a therapeutic target. > TNF-related apoptosis-inducing ligand (TRAIL) has been described as a pro-apoptotic factor on malignant cells. The fact that fibroblasts-like-synoviocytes (FLS) in rheumatoid arthritis RA patients exhibit tumor like features led us to investigate the effect of TRAIL on ex-vivo RA FLS. We have previously described that TRAIL induces apoptosis only in a subset of RA FLS, but an induction of proliferation in the surviving cells. This observation corresponds to the pleiotropic effects of TRAIL observed on primary human tumor cells. We also observed that sensitivity to TRAIL-induced apoptosis varied in RA FLS from one patient to another, and was correlated with disease severity. We therefore screened for genes that were differentially expressed in RA FLS sensitive and resistant to TRAIL induced apoptosis in order to understand molecular factors making cells resistant or sensitive to TRAIL induced apoptosis.
2018-02-12 | GSE65908 | GEO
Project description:Fibroblast-like synoviocyte (FLS) constitutes a major cell subset of rheumatoid arthritis (RA) joint. Dysregulation of microRNAs (miRNAs) contributes to FLS activation in the context of chronic inflammation. However, functional association of the miRNAs-targets relationships characterizing FLS phenotypes in RA has not been fully elucidated yet. Thus, we uncovered the novel miRNA-target interactions characterizing pathologic phenotypes of RA-FLS. We performed microarray analyses of miRNA in RA- and osteoarthritis (OA) FLS with or without interleukin-1β (IL-1β) stimulation. The miRNA-target prediction and network model-ing were performed using TargetScan and Cytoscape. Identified miRNA-target relationships and their cellular functions were validated in vitro.
2017-10-31 | GSE91026 | GEO
Project description:TNF-like ligand 1A (TL1A) is a member of TNF receptor superfamily and involved in the pathogenesis of autoimmune diseases by inducing apoptosis via intracellular death domain or promoting inflammation through the activation of NFM-NM-:B by binding to its specific receptor death receptor 3 (DR3). Meanwhile, decoy receptor 3 (DcR3) competitively binds soluble TL1A in addition to Fas-ligand (FasL) and LIGHT and inhibits the signaling of TL1A via DR3. DcR3 overexpressed in rheumatoid synovial fibroblasts (RA-FLS) stimulated with inflammatory cytokines such as TNFM-NM-1 or IL-1M-NM-2 inhibits Fas-induced apoptosis. In contrast, DcR3 inhibited cell proliferation induced by inflammatory cytokines via membrane-bound TL1A expressed on RA-FLS. Therefore, TL1A-DcR3/DR3 signaling may be involved in the pathogenesis of RA by modulating apoptosis and proliferation of RA-FLS. We hypothesized that TL1A regulates the gene expression in RA-FLS. We used to search for genes in which expression in RA-FLS is regulated by the ligation of TL1A. RA-FLS were obtained from 4 RA patients (sample1-4). Each sample was incubated with either 1.0 M-NM-<g/ml recombinant human TL1A protein or phosphate buffered saline (PBS) diluted with serum-free Opti-MEM medium as non-stimulated control for 12 hours at 37M-BM-0C with 5% CO2. Gene expression in RA-FLS stimulated by TL1A was compared with that of their respective non-stimulated controls.
2014-12-10 | E-GEOD-63995 | biostudies-arrayexpress
Project description:Decoy receptor 3 (DcR3), a member of the tumor necrosis factor receptor (TNFR) superfamily, competitively binds and inhibits members of the TNF family, including Fas ligand (FasL), LIGHT, and TL1A. DcR3 was recently reported not only to act as a decoy receptor for these TNFRs but also to play a role as a ligand for the pathogenesis of RA. We hypothesized that DcR3 regulates the gene expression in RA-FLS. We used to search for genes in which expression in RA-FLS is regulated by the ligation of DcR3. RA-FLS were obtained from 4 RA patients (sample1-4). Each sample was incubated with control IgG1 or human DcR3-Fc. Gene expression in RA-FLS stimulated by DcR3-Fc was compared with that of their respective unstimulated controls.
2013-04-02 | E-GEOD-45665 | biostudies-arrayexpress
Project description:Invasive pannus, mainly composed of fibroblast-like synoviocytes (FLSs), is a hallmark of rheumatoid arthritis (RA) pathology. Secreted proteins from RA-FLS play key roles in RA invasive pannus. However, RA-FLS-derived secretome associated with invasive pannus has not been systematically investigated. Here, we first identified 843 secreted proteins from RA-FLSs treated with TNFα and IL-1β using liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis. Functional enrichment analysis revealed that 58.5% (493 proteins) of the secretome were associated with pannus-driven RA pathologies. Among them, parallel reaction monitoring (PRM) analysis then identified 16 secreted proteins that were increased in RA SFs (117 samples) than in OA SFs (45 samples). Of them, MYH9 further showed significant positive correlations with RA pathological parameters, such as synovial hyperplasia, increased articular vascularity, and inflammation severity. Molecular and cellular experiments confirmed that MYH9 was expressed in RA-FLSs and more highly under disease-aggravating conditions, and MYH9 depletion significantly defected migration and invasion of RA-FLS in RA pannus. Our study provides a comprehensive resource of RA-FLS-derived secretome, and our results suggest MYH9 that was increased in RA SF and strongly correlated with disease severity as a potential therapeutic target for invasive pannus.
2023-06-30 | PXD041077 | Pride
Project description:TNF-like ligand 1A (TL1A) is a member of TNF receptor superfamily and involved in the pathogenesis of autoimmune diseases by inducing apoptosis via intracellular death domain or promoting inflammation through the activation of NFκB by binding to its specific receptor death receptor 3 (DR3). Meanwhile, decoy receptor 3 (DcR3) competitively binds soluble TL1A in addition to Fas-ligand (FasL) and LIGHT and inhibits the signaling of TL1A via DR3. DcR3 overexpressed in rheumatoid synovial fibroblasts (RA-FLS) stimulated with inflammatory cytokines such as TNFα or IL-1β inhibits Fas-induced apoptosis. In contrast, DcR3 inhibited cell proliferation induced by inflammatory cytokines via membrane-bound TL1A expressed on RA-FLS. Therefore, TL1A-DcR3/DR3 signaling may be involved in the pathogenesis of RA by modulating apoptosis and proliferation of RA-FLS. We hypothesized that TL1A regulates the gene expression in RA-FLS. We used to search for genes in which expression in RA-FLS is regulated by the ligation of TL1A.
2014-12-10 | GSE63995 | GEO
Project description:TNF-like ligand 1A (TL1A) is a member of TNF receptor superfamily and involved in the pathogenesis of autoimmune diseases including rheumatoid arthritis (RA) by inducing apoptosis via intracellular death domain or promoting inflammation through the activation of NFκB by binding to its specific receptor death receptor 3 (DR3). Meanwhile, decoy receptor 3 (DcR3) competitively binds soluble TL1A in addition to Fas-ligand (FasL) and LIGHT and inhibits the signaling of TL1A via DR3. Therefore, TL1A-DcR3/DR3 signaling may be involved in the pathogenesis of RA by modulating apoptosis and proliferation of RA-FLS. We hypothesized that TL1A regulates the gene expression in RA-FLS. We used to search for genes in which expression in RA-FLS is regulated by TL1A.
2018-08-24 | GSE118958 | GEO
Project description:Rheumatoid synoviocytes, which consist of fibroblast-like synoviocytes (FLS) and synovial macrophages (SM), are crucial for the progression of rheumatoid arthritis (RA). Particularly, FLS of RA patients (RA-FLS) exhibit invasive characteristics reminiscent of cancer cells, destroying cartilage and bone, although it remains unresolved how RA-FLS exhibit invasive phenotype. RA-FLS and SM originate differently from mesenchymal and myeloid cells, respectively, but share many pathologic functions. However, the molecular signatures and biological networks representing the distinct and shared features of the two cell types are unknown. Presently, we performed global transcriptome profiling of FLS and SM obtained from RA and osteoarthritis patients. By comparing the transcriptomes, we identified distinct molecular signatures and cellular processes defining invasiveness of RA-FLS and pro-inflammatory properties of RA synovial macrophages (RA-SM), respectively. Interestingly, under interleukin1β-stimulated condition, RA-FLS newly acquired pro-inflammatory signature mimicking RA-SM without losing invasive properties. We next reconstructed a network model that delineates the shared, RA-FLS-dominant (invasive), and RA-SM-dominant (inflammatory) processes. From the network model, we selected 13 genes, including POSTN and TWIST1, as novel regulator candidates responsible for FLS invasiveness. Of note, POSTN and TWIST1 expressions were elevated in independent RA-FLS and were further instigated by interleukin1β. In vitro functional assays demonstrated the requirement of POSTN and TWIST1 for migration and invasion of RA-FLS stimulated with interleukin1β. Taken together, our systems approach to rheumatoid synovitis provides a basis for identifying novel regulators responsible for pathological features of RA-FLS and RA-SM, demonstrating how a certain type of cells acquires functional redundancy under chronic inflammatory conditions. To identify molecular signatures of FLS and MLS in RA joints, we isolated FLS from synovial tissues of RA and osteoarthritis (OA) patients, obtained synovial macrophages from synovial fluid of RA patients, and differentiated control macrophages from peripheral blood of healthy subjects. Also, we stimulated FLS with IL1β, and then analyzed gene expression profiles of both IL1β-stimulated RA-FLS and OA-FLS
2014-01-09 | E-GEOD-49604 | biostudies-arrayexpress
Project description:Decoy receptor 3 (DcR3), a member of the tumor necrosis factor receptor (TNFR) superfamily, competitively binds and inhibits members of the TNF family, including Fas ligand (FasL), LIGHT, and TL1A. DcR3 was recently reported not only to act as a decoy receptor for these TNFRs but also to play a role as a ligand for the pathogenesis of RA. We hypothesized that DcR3 regulates the gene expression in RA-FLS. We used to search for genes in which expression in RA-FLS is regulated by the ligation of DcR3.
2013-04-02 | GSE45665 | GEO