“…[10,11] In recent years, there has been an increased interest in the antitumour activity of NSAIDs due to at least three reasons: (1) COX-2 is found to be overexpressed in many cancers thus making it an attractive therapeutic target for the prevention and treatment of a number of malignancies [11,12]; (2) chronic inflammation has been proved to play an important role in cancer development and progression [13,14]; (3) NSAIDs are used also by oncology patients and the 'relationships' between these drugs and cancer cells have to be better clarified. [15] Numerous studies have suggested that aspirin and/or other NSAIDs can be effective in the prevention and/or treatment of malignancies, such as cancers of the colon, [16] breast, [17,18] lung, [19] pancreas, [20] prostate, [21,22] ovarium, [23] squamous cell carcinoma and melanoma, [24] etc. Different NSAIDs have been reported to inhibit the growth and survival of cell lines established from a wide variety of cancers, including gastric cancer, [25,26] cancers of the colon, [27] lung, [28] urinary bladder, [29] osteosarcoma, [30] etc.…”