Additionally, ABCC3 was up-regulated in the poor-prognostic cluster 3 relative to cluster 4 (Figures 7A and 10G), and it was also up-regulated in GBM relative to LGG in the TCGA, CGGA #325 and CGGA #693 cohorts (Figures 10C–E). Here, ABCC3 is linked to glioblastoma.