Synovial fluid components

Synovial fluid is a viscous liquid found within synovial joint cavities responsible for joint lubrication, nutrient delivery, and modulation of inflammation. It is a non-Newtonian fluid composed mainly of hyaluronic acid, lubricin (proteoglycan 4), proteins (including enzymes and cytokines), immune cell-derived extracellular vesicles, and small amounts of nutrients. Its primary biological functions are to lubricate cartilage surfaces for frictionless movement, nourish articular cartilage, and modulate joint immune response. Pathological changes in its composition and volume are associated with inflammatory joint diseases including osteoarthritis and rheumatoid arthritis. Analysis of synovial fluid is commonly used for disease diagnosis, monitoring, and biomarker discovery. However, "synovial fluid components" refers to a mixture rather than a specific molecular target, so it is not a canonical therapeutic target like a receptor, enzyme, or transporter. Instead, individual components (e.g., hyaluronic acid, cytokines, lubricin) are considered distinct molecular targets in drug development and diagnostics. The term "Synovial fluid components" is not a canonical target, but an umbrella term for multiple molecules with separate clinical and therapeutic significance. For structured target information, specify the exact molecule (e.g., "Hyaluronic acid," "Lubricin," "Interleukin-6") to generate actionable data for drug discovery or biomarker use.

Other names

SynoviaJoint fluid component

null (mechanisms target individual molecules like hyaluronic acid, not the generic fluid)