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Copyright ©2014 Baishideng Publishing Group Inc.
World J Orthop. Jul 18, 2014; 5(3): 319-327
Published online Jul 18, 2014. doi: 10.5312/wjo.v5.i3.319
Table 2 Effects of adipokines on osteoarthritis pathogenesis
AdipokinesProteasesCytokinesInflammationCartilageBone
Leptin↑MMP-1 ↑MMP-3 ↑MMP-9 ↑MMP-13 ↑Cysteine proteases ↑ADAMTS-4 ↑ADAMTS-5↑IL-1β↑IL-6 ↑IL-8 ↓FGF ↑TNF-α↑IGF-1 ↑TGF-β↑GRO ↑MCP-1↑NOS2 ↑iNOS ↑PGE2 ↑COX-2↓↑Chondrocyte proliferation ↑Proteoglycan synthesis ↑Collagen synthesis↑Osteoblast proliferation ↑Ossification ↑ALP ↑OC
Adiponectin↑MMP-1 ↑MMP-3 ↑MMP-9 ↑↓MMP-13 ↑TIMP-1 ↑TIMP-2↑IL-6 ↑IL-8 ↑MCP-1 ↑VCAM-1↑NOS2 ↑PGE2 ↑VEGF↑Chondrocyte proliferation ↑Proteoglycan synthesis ↑Collagen synthesis ↑Matrix mineralization↑Osteoblast proliferation ↑Osteoclast differentiation ↑RANKL ↓OPG
Visfatin↑MMP-3, ↑MMP-13, ↑ADAMTS-4, ↑ADAMTS-5↑IL-1β↑IL-6 ↑TNF-α↑NO ↑PGE2↓Chondrocyte phenotype ↓Proteoglycan synthesis ↓Collagen synthesis↑Osteoblast proliferation ↓Osteoclast differentiation
Resistin↑MMP-1 ↑MMP-13 ↑ADAMTS-4↑IL-6 ↑TNF-α↑PGE2↓Proteoglycan synthesis ↓Collagen synthesis↑Osteoblast proliferation ↑Osteoclast differentiation
ADAMTS: A disintegrin and metalloproteinase with thrombospondin motifs; ALP: Alkaline phosphatase; COX-2: Cyclooxygenasse-2; FGF: Fibroblast growth factor; GRO: Growth-related oncogene; IGF-1: Insulin-like growth factor-1; IL: Interleukin; iNOS: Inducible nitric oxide synthase; MCP-1: Monocyte chemo-attractant protein-1; MMP: Metalloproteinases; NO: Nitric oxide; NOS2: Type 2 nitric oxide synthase; OC: Osteocalcin; OPG: Osteoprotegerin; PGE2: Prostaglandin E2; RANKL: Receptor activator of nuclear factor kappa-B ligand; TGF-β: Transforming growth factor-beta; TIMP: Tissue inhibitor of metalloproteinases; TNF-α: Tumor necrosis factor-alpha; VCAM-1: Vascular cell adhesion molecule-1; VEGF: Vascular endothelial growth factor.