Finally, we observed a negative correlation between the purity of 6 different types of tumors [UCS (r = −0.543, p = 1.55e-05), KIRP (r = −0.538, p = 1.25e-22), TGCT (r = −0.524, p = 9.49e-12), ACC (r = −0.507, p = 3.46e-06), SARC (r = −0.507, p = 3.89e-17), GBM (r = −0.506, p = 1.13e-10)] and the expression of VNN1 (Figure 9). Here, VNN1 is linked to glioblastoma.