KIAA1549 and pilocytic astrocytoma: Treatment of pilocytic astrocytoma (PA)-derived KIAA1549:BRAF fusion- (DKFZ-BT66, DKFZ-BT308) or BRAFV600E-driven cells (DKFZ-BT314) in proliferating state (induced by SV40-TAg) or senescent state (no SV40-TAg induction) did not reduce viable cell numbers compared to untreated cells (Fig. S2).