RT Journal Article T1 Proteomic analysis of synovial fibroblasts and articularchondrocytes co-cultures reveals valuable VIP-modulatedinflammatory and degradative proteins in osteoarthritis A1 Pérez García, Selene A1 Calamia, Valentina A1 Hermida-Gómez, Tamara A1 Gutiérrez-Cañas, Irene A1 Carrión Caballo, Mar A1 Villanueva-Romero, Raúl A1 Castro Vázquez, David A1 Martínez, Carmen A1 Juarranz Moratilla, Yasmina A1 Blanco, Francisco J. A1 Gomáriz, Rosa P. AB Osteoarthritis (OA) is the most common musculoskeletal disorder causing a great disability and a reduction in the quality of life. In OA, articular chondrocytes (AC) and synovial fibroblasts (SF) release innate-derived immune mediators that initiate and perpetuate inflammation, inducing cartilage extracellular matrix (ECM) degradation. Given the lack of therapies for the treatment of OA, in this study, we explore biomarkers that enable the development of new therapeutical approaches. We analyze the set of secreted proteins in AC and SF co-cultures by stable isotope labeling with amino acids (SILAC). We describe, for the first time, 115 proteins detected in SF-AC co-cultures stimulated by fibronectin fragments (Fn-fs). We also study the role of the vasoactive intestinal peptide (VIP) in this secretome, providing new proteins involved in the main events of OA, confirmed by ELISA and multiplex analyses. VIP decreases proteins involved in the inflammatory process (CHI3L1, PTX3), complement activation (C1r, C3), and cartilage ECM degradation (DCN, CTSB and MMP2), key events in the initiation and progression of OA. Our results support the anti-inflammatory and anti-catabolic properties of VIP in rheumatic diseases and provide potential new targets for OA treatment. PB MDPI SN 1661-6596, ESSN: 1422-0067 YR 2021 FD 2021-06-16 LK https://hdl.handle.net/20.500.14352/8694 UL https://hdl.handle.net/20.500.14352/8694 LA eng NO Instituto de Salud Carlos III/Fondo Europeo de Desarrollo Regional (FEDER) DS Docta Complutense RD 30 abr 2024