Important mechanisms associated with its functions play a key role in both (i) the decrease of COX-2 gene (cyclooxygenase 2) expression and (ii) the increase of 15-PDGH (enzyme catalyzing prostaglandins degradation) expression, therefore locally lowering prostaglandins levels in tumors (favoring, in a similar way, carcinogenesis by inhibiting the apoptosis of cancer cells) [15]. This evidence concerns the gene PTGS2 and cancer.