The expression of PAFR is elevated in different types of cancer, such as human hepatocellular carcinoma (41), gastric adenocarcinoma (42), and by several human tumor lineages [e.g., Kaposi’s sarcoma cells (43), endometrial cancer cell line HEC-1A (44), epidermoid carcinoma (A431 cells) (45), stomach cancer cell line JR-St (46), and N1E-115 neuroblastoma cells (47)]. This evidence concerns the gene PTAFR and squamous cell carcinoma.