PPARGC1A and glioblastoma: Compatible with this, we observed decreased cell viability upon exposure to galactose in both AMPK DKO sub cell lines which could be rescued by overexpressing PGC‐1α (Figures 5A and B and S4C and D) as well as increased sensitivity to galactose by pharmacological AMPK inhibition in primary human astrocytes as well as primary glioblastoma P3NS cells (Figure 6B).