“…Interestingly, the non-chromosome 22 alterations detected in ON meningiomas, including chromosome 2, 10, 17 and 20 abnormalities (Table 2), were relatively uncommon in intracranial (29, 30, 47) meningiomas and in our Sph-Ob meningiomas. Candidate genes present in these regions, some of which encoding for known tumor suppressors, include EML4 , MSH2 (Ch 2p); RPRM , GALNT13 , KCNJ3 (Ch 2q) and PTEN (Ch10q) (15, 17, 28, 45). Conversely, recurrent alterations in loci previously suspected of participating in meningioma development and/or progression were absent in ON, including MUTYH , PRDX1 , FOXD2 , FOXE3 , PTCH2 , RAD54L (1p); CTGF , TREM30A , SESN1 (Ch 6q); and NDRG2 , TMEM30B (Ch 14q) (28, 43).…”