Abstract Number: 48 • 2012 ACR/ARHP Annual Meeting
Tissue Engineering for Articular Cartilage Repair, Culturing Bone Marrow Mesenchymal Stem Cells On Collagen and Heparan Sulphate Scaffolds
Background/Purpose: The aim of this study was to evaluate the chondrogenic potential of bone marrow mesenchymal stem cells (BM-MSCs) grown on type I collagen and…Abstract Number: 28 • 2012 ACR/ARHP Annual Meeting
Role of Microrna 455 Networks in Mesenchymal Cell Differentiation and Osteoarthritis
Background/Purpose: The objectives of this study were to identify cartilage specific microRNAs (miRNAs, miR-) that are regulated by SOX9 and are increased in chondrogenesis, to…Abstract Number: 2519 • 2012 ACR/ARHP Annual Meeting
IL-1β and TNF-α Regulate the Global and Locus-Specific hydroxymethylation of Genomic DNA by Modulating the Expression and Activity of Tet-1 in Human OA Chondrocytes
Background/Purpose: 5-hydroxymethylcytosine (5-hmC), which is formed by the oxidation of 5-methylcytosine (5-mC), is a recently discovered epigenetic mark and is highest in brain and in…Abstract Number: 35 • 2012 ACR/ARHP Annual Meeting
Changes in Tibial Bone and Cartilage Structure in a Mouse Surgical Model of Osteoarthritis
Background/Purpose: The destabilisation of the medial meniscus (DMM) mouse osteoarthritis (OA) model is commonly used to study OA joint degeneration. In DMM-OA, the knee is…Abstract Number: 2520 • 2012 ACR/ARHP Annual Meeting
Suppressor of Cytokine Signaling 3 Is Reduced in Obese Patients with Osteoarthritis and Regulates Leptin Responses in Chondrocytes
Background/Purpose: Leptin is an adipokine whose concentrations in circulation are proportional to body fat stores and body mass index (BMI). Initially leptin was discovered to…Abstract Number: 40 • 2012 ACR/ARHP Annual Meeting
Syndecan-4 Regulates Activation of WNT Signaling in Chondrocytes
Background/Purpose: Blockade of syndecan-4 (Sdc4) signaling protects mice from cartilage degradation in experimentally induced osteoarthritis (OA). Cartilage damage results in changes of chondrocyte phenotype induced…Abstract Number: 2467 • 2012 ACR/ARHP Annual Meeting
Tissue Lesions in Osteoarthritis Initiative Participants with Normal X-Rays and Risk Factors for Incident Cartilage Damage
Background/Purpose: Understanding factors underlying initial development of knee OA is crucial to effective prevention strategy design. Our goals were to: 1) determine extent of tissue…Abstract Number: 41 • 2012 ACR/ARHP Annual Meeting
Long-Distance Physical Connections Between Chondrocytes; Cell-to-Cell Communication within Articular Cartilage
Background/Purpose: It is believed that chondrocytes in cartilage do not connect each other, as they are isolated inside their lacunae separated from each other by…Abstract Number: 1638 • 2012 ACR/ARHP Annual Meeting
Synovial Fibroblast Migration Is Modulated by the Focal Contact Protein Lasp-1
Background/Purpose: RA synovial fibroblasts (SF) have been suggested to contribute to the spreading of disease through their ability to leave cartilage destruction sites, migrate via…Abstract Number: 9 • 2012 ACR/ARHP Annual Meeting
Function of the Chondrocyte PI-3 Kinase Akt Signaling Pathway Is Stimulus Dependent
Background/Purpose: Previous studies have shown that activation of the chondrocyte PI-3K-Akt signaling pathway by IGF-1 promotes chondrocyte survival and matrix synthesis. However, other studies have…Abstract Number: 1119 • 2012 ACR/ARHP Annual Meeting
Prediction of MRI-Detected Cartilage Loss Over 30 Months Using Simplified Radiographic and Clinical Stratification: The MOST Study
Background/Purpose: MRI-detected cartilage loss is the main structural outcome measure in large studies of knee OA. Definition of subjects at high risk for cartilage loss…Abstract Number: 10 • 2012 ACR/ARHP Annual Meeting
Fibronectin Fragment Induces Procatabolic Effects Through TLR-2 Signaling Pathway in Human Articular Chondrocytes
Background/Purpose: Fibronectin fragments (FN-fs) are increased in the synovial fluid of osteoarthritis patients and have a potent chondrolytic effect. However, little is known about the…Abstract Number: 1059 • 2012 ACR/ARHP Annual Meeting
Endogenous Complement Factor H Plays an Important Role in Controlling Immune Complex-Induced Inflammatory Arthritis
Background/Purpose: The complement system, a major component of innate immunity, likely plays an important role in the pathogenesis of rheumatoid arthritis (RA). Factor H (fH)…Abstract Number: 11 • 2012 ACR/ARHP Annual Meeting
Cartilage Tissue Engineering Using Collagen Scaffolds and Human Mesenchymal Stem Cells
Background/Purpose: The aim of this study was to obtain cartilage-like constructs by chondrogenic differentiation of human bone marrow mesenchymal stem cells (hBM-MSCs) grown on different…Abstract Number: 1019 • 2012 ACR/ARHP Annual Meeting
Visualization of Cartilage in High-Resolution Magnetic Resonance Imaging Is a New Imaging Biomarker for the Quantification of Joint Damage in Rheumatoid Arthritis
Background/Purpose: Recent achievements in Magnetic Resonance Imaging (MRI) have been the gradient-echo-based T1-delayed gadolinium-enhanced MRI of cartilage (dGEMRIC) focussing on the detection of proteoglycan content…