Previous studies demonstrated that PTBP3 enhances the invasion and metastasis of breast cancer and regulates the expression of drug resistance proteins in gastric cancer, suggesting that PTBP3 may serve as a potential novel therapeutic target for gastric cancer (Liang et al., 2017; Hou et al., 2018; Liang et al., 2020). Here, PTBP3 is linked to gastric cancer.