CCDC50 and gastric cancer: To better understand the role of CCDC50 in HCC, the KEGG enrichment analysis was performed, and it indicated that the DEGs in HCC were primarily involved in the neuroactive ligand-receptor interaction, gastric cancer, pancreatic secretion, gastric acid secretion, pertussis, glycosaminoglycan biosynthesis-keratan sulphate, axon guidance, phenylalanine metabolism, nitrogen metabolism and protein digestion and absorption.