PTGS2 and neoplasm: The apoptosis inhibitory gene [5] (Bcl-x1), vascular endothelial growth factor receptor 2 [6] (VEGFR2), tumor necrosis factor α [7] (TNFα), interleukin-2 [8] (IL-2), cyclin-dependent protein kinase 2 [9] (CDK-2), cyclooxygenase 2 [10] (Cox-2), farnesyl transferase [11] (FTase), and focal adhesion kinase [12] (FAK) are all proteins related to tumor occurrence and progression.