PSMD14 and gastric cancer: Recently, elevated expression of PSMD14 has been observed in various human cancers, including lung adenocarcinoma, hepatocellular carcinoma, gastric cancer, colorectal cancer, esophageal squamous cell carcinoma, breast cancer, ovarian cancer, prostate cancer, multiple myeloma, osteosarcoma, head and neck squamous cell carcinoma, and melanoma [23-34].