PTGS2 and cervical cancer: Inflammatory molecules involved in inflammation-mediated cervical cancer consists of reactive oxygen species (ROS), inducible nitric oxide synthase (iNOS), TNF-α, interleukin-1, IL-6, IL-8, IL-18, hypoxia-inducible factor (HIF), cyclooxygenase-2 (COX-2), matrix metalloproteinase enzyme-9 (MMP-9), and chemokines [6, 7].