NF2 meningiomas expressed high levels of BCL2, GLI1, and CA3, while TRAF7 tumors had high expression of IL1RL1, KRT16, NOS1, and RAPGEFL1. The expression of FOXD3 and PTCH2 were upregulated in NF2 meningiomas with or without chr1p loss, respectively. Here, NOS1 is linked to meningioma.