NOS2 and cervical cancer: Inflammatory molecules involved in inflammation-mediated cervical cancer include reactive oxygen species (ROS), TNF-α, IL-1, IL-6, IL-8, IL-18, hypoxia-inducible factor (HIF), cyclooxygenase (COX), inducible nitric oxide synthase (INOS), Matrix metalloproteinase enzyme-9 (MMP-9), and chemokines [39].