Vitamin C is a water soluble micronutrient commonly found in our diet which orchestrates the function of both innate and adaptive immune system, influences cellular as well as humoral immune responses. Vitamin C inhibits excessive activation of the immune system to prevent tissue damage, but also supports antibacterial activity, stimulates NK cells and differentiation of Th0 subset into Th1 characterized by INFγ production.
In addition, vitamin C interferes with the synthesis of proinflammatory cytokines, or with the expression of adhesive molecules. Moreover, vitamin C as an antioxidat protects the immune cells against intracellular ROS formed in the inflammatory response.
Vitamin C as an enzymatic cofactor is extremely important in maintaining tissue integrity, and plays a crucial role in formation of skin, epithelial and endothelial barriers.