CD81 and neoplasm: A deeper analysis revealed upregulation of genes involved in tumor suppression (Clca2, Spink5, Igfbp6, Nptx1, Bex4, Gadd45g, Yipf5), immune regulation (IL6ra, Ccl6, Cd81, Cd244a, Cd151, and Gata4), apoptosis, and pyroptosis (Ddit3, Rgs6, and Gsdmsc2/3/4).