The most thoroughly investigated protein is COX-2, which plays a key role in inflammation, carcinogenesis, and angiogenesis and has been shown to positively correlate with HuR in OSCCs, LSCCs, and thyroid lesions, as well as mucoepidermoid carcinomas [44, 63, 98, 100]. This evidence concerns the gene ELAVL1 and mucoepidermoid carcinoma.