PLAGL2 and glioblastoma: PLAGL2 were analyzed at the protein and RNA levels in the Human Protein Atlas (HPA) dataset (https://www.proteinatlas.org/), which contained the immunohistochemistry staining images of 153 clinical GBM patients and their survival information with 54 females and 99 males (Pontén et al., 2008; Uhlen et al., 2017).