Gene expression profiling in synovial fluid derived stem cells (SFSCs)
ABSTRACT: To explore mRNA expression profiling in synovial fluid derived stem cells (SFSCs), gene expression analysis was performed on 3 SFSCs and 1 BMMSC. 3 synovial fluid derived stem cells and 1 bone marrow mesenchymal stem cells
Project description:CD14+ monocytes sorted from the synovial fluid or peripheral blood of rheumatoid arthritis patients were analyzed by full transcriptome microarray analysis. Monocytes from healthy control samples (peripheral blood) were also profiled. Overall design: A total of 26 samples consisting of 16 paired and 2 un-paired synovial fluid and peripheral blood derived CD14+ monocytes from RA-patients, as well as peripheral blood CD14+ monocytes from 8 healthy control subjects were compared. Sorted monocytes (at least of 95% purity) from each of the donors were obtained individually, and compared by full transcriptome profiling.
Project description:In the current work, we used an isotopically labeled high resolution LC MS/MS-based proteomics approach to analyze the protein profile of synovial fluid at 6 and 12 months after ACL transection in untreated and repaired porcine knees. Our primary aim was to determine how the synovial fluid proteome differs between the two groups in an effort to identify candidate proteins that may be associated with the development of posttraumatic OA. We hypothesized that the development of macroscopic cartilage damage following surgical ACL transection would be accompanied by differential changes in synovial fluid proteome in untreated knees compared to repaired joints.
Project description:Synovial fluid in an articulating joint contains proteins derived from blood transudates, and proteins that are produced by cells within joint tissues, such as synovium, cartilage, ligament, and meniscus. The proteome composition of healthy synovial fluid is not fully understood. Also not fully delineated are the cellular origins of synovial fluid components. We here present a normative proteomics study for synovial fluid optimized in pig.
Project description:Within a study RNA samples of synovial fluid polymorphnuclear neutrophil granulocytes from 9 RA patients and of blood PMN from 4 healthy donors were analyzed for anti-apoptotic gene expression. The RNA samples were amplified and labelled red. Control samples (SigM5 cell culture) were labelled green. Each sample and control sample was co-hybrizated on a microarray with 780 inflammatory genes and 20 internal controls. Within the 19 anti-apoptotic genes tested, only the p21cip1waf1, CDKN1A, gene is significantly upregulated.
Project description:Rheumatoid arthritis (RA) is a chronic autoinflammatory disorder that affects small joints. Despite intense efforts, there isno definitive marker yet for early diagnosis RA and for monitoring the progression of this disease. We sought to catalog the proteins present in the synovial fluid of patients with rheumatoid arthritis. To identify lower abundance proteins, we undertook two approaches – we depleted the abundant proteins using a multiple affinity removal system (MARS14) column and we enriched glycoproteins using a lectin affinity column. The peptides were analyzed by LC-MS/MS on a high resolution Fourier transform mass spectrometer.
Project description:Osteoarthritis is characterized by degeneration of cartilage and bone in the synovial joints. Recent findings suggest that inflammation may play a role in osteoarthritis, with synovitis being associated with the clinical symptoms of osteoarthritis. Furthermore, we have found that levels of inflammatory complement components are abnormally high in the synovial fluid of individuals with osteoarthritis. To determine whether synovial membranes could be a source of complement and other inflammatory molecules in osteoarthritic joints, we characterized the expression of genes in synovial membranes from patients with early-stage or end-stage osteoarthritis. Samples of synovial membrane were obtained from the suprapatellar pouch of patients with osteoarthritis who were treated at the Hospital for Special Surgery. Specifically, samples were from 10 patients with early-stage knee osteoarthritis who were undergoing arthroscopic procedures for degenerative meniscal tears (with documented cartilage degeneration but no full-thickness cartilage loss, Kellgren Lawrence score </=2), and from 9 patients with end-stage knee osteoarthritis ( diffuse full thickness cartilage erosion) who were undergoing total knee joint replacement. Raw data from microarray analysis of healthy synovial membranes, which were run on the same platform and array as our osteoarthritic samples, were downloaded from the NCBI Gene Expression Omnibus (accession number GSE12021) and used for comparison. The 19 new Samples of this Series were analyzed (RMA) together with 7 previously submitted healthy individual Samples (GSM175810, GSM175812, GSM176290, GSM176291, GSM176292, GSM176268, GSM176269). The complete RMA data are provided as a supplementary file on the Series record. The GSE12021 reanalyzed data are also provided as a supplementary file on the Series record. GSE32317_12genes.txt includes data from figure 1 of the paper.
Project description:Enthesitis related arthritis (ERA) is the most common category of juvenile idiopathic arthritis in Asia. MicroRNA dysregulation has been shown in chronic arthritides however there is no data in ERA. MicroRNA dysregulation in ERA may help understand the pathogenesis of disease. Thus we determined the difference in global miRNA expression in peripheral blood mononuclear cells (PBMCs) of patients with ERA (n=8) as compared to healthy controls (HC) (n=8) and further to understand the changes at the site of inflammation, the PBMCs profile was compared with the synovial fluid mononuclear cells (SFMCs) (n=8) of patients with ERA. Overall design: Agilent one-color experiment,Organism: Homo sapiens, Agilent Human miRNA 8x15k Arrays AMADID: 021827