CDK1 and glioblastoma: Analysis of the correlations between the expression of CDK1 and MSI/TMB in tumors in the TCGA database showed that CDK1 expression was positively related to MSI in GBM, UCEC, TGCT, SARC, COAD, STAD, and KIRC, whereas CDK1 expression was negatively linked with MSI in DLBC (Figure 11B).