In liver cancer, glioblastoma, multiple myeloma, gastric cancer, and melanoma, PHF19 has been confirmed to be highly expressed and was closely related to the prognosis of patients (Cai et al., 2018; Deng et al., 2018; Ghislin et al., 2012; Ren et al., 2019; Wang et al., 2020). Here, PHF19 is linked to gastric cancer.