The study on glioma reported PD-L1 expression in the patients’ characteristics and the data were deposited in both Chinese Glioma Genome Atlas (CGGA) and The Cancer Genome Atlas (TCGA), however, it was hard to calculate the prognoses of the patients in mixed stages II-IV, primary, recurrence, and progressive gliomas [14]. This evidence concerns the gene CD274 and central nervous system cancer.