International Journal of Molecular Sciences, Vol.13, No.4, 4202-4232, 2012
Scientific Evidence and Rationale for the Development of Curcumin and Resveratrol as Nutraceutricals for Joint Health
Interleukin 1 beta (IL-1 beta) and tumor necrosis factor alpha (TNF-alpha) are key cytokines that drive the production of inflammatory mediators and matrix-degrading enzymes in osteoarthritis (OA). These proinflammatory cytokines bind to their respective cell surface receptors and activate inflammatory signaling pathways culminating with the activation of nuclear factor kappa B (NF-kappa B), a transcription factor that can be triggered by a host of stress-related stimuli including, excessive mechanical stress and ECM degradation products. Once activated, NF-kappa B regulates the expression of many cytokines, chemokines, adhesion molecules, inflammatory mediators, and several matrix-degrading enzymes. Therefore, proinflammatory cytokines, their cell surface receptors, NF-kappa B and downstream signaling pathways are therapeutic targets in OA. This paper critically reviews the recent literature and outlines the potential prophylactic properties of plant-derived phytochemicals such as curcumin and resveratrol for targeting NF-kappa B signaling and inflammation in OA to determine whether these phytochemicals can be used as functional foods.
Keywords:phytochemical;curcumin;resveratrol;articular cartilage;osteoarthritis;OA;rheumatoid arthritis;RA;functional food