MMP2 and nasal cavity polyp: Exposure of nasal polyp fibroblasts to 1,25(OH)2D3 reduces the IL-1β-induced release of eosinophil-attracting chemokines (RANTES and eotaxin), decreases the TNF-α-induced expression of matrix metalloproteinases 2 and 9 (MMP2 and MMP9)—which play a significant role in airway tissue remodeling—and also reduces IL-6 and IL-8 induced by lipopolysaccharides [68,69,70].