A strong association between SF3B1 expression and key tumor -markers of development/progression (VEGFA/MKI67/EGFR/CDK4/PDGFRA) was found in GBM (CGGA- and Rembrandt-datasets), but not in the non-tumor samples (Rembrandt-dataset) (Fig. 1l). The gene discussed is PDGFRA; the disease is glioblastoma.