In order to construct a risk score model for predicting OS of GBM, the LASSO Cox regression model was used to build a prognostic classifier, which included BEX1, BEX2, BEX4, sf5TCEAL2, TCEAL4, TCEAL7, and TCEAL9 (Figures 5A,B). Here, TCEAL4 is linked to glioblastoma.