GATA6 and meningioma: In summary, this study provided evidence that p14ARF, RASSF1A, p15INK4B (CDKN2B), RUNX3, GATA6, p16INK4A (CDKN2A), NDRG2 and to lesser extent ATM and RARβ promoter methylation are associated with the development of meningiomas.