In our exploration of the effect of 27 anoikis-related genes on the overall survival (OS) of an integrated GEO dataset, we found that the expression of PTK2, PIK3CA, PDK4, NTRK2, and ITGA5 was statistically associated with the OS of patients with GBM (Figure 1F). The gene discussed is NTRK2; the disease is glioblastoma.