0896-62732161998DecNeuronMutations in filamin 1 prevent migration of cerebral cortical neurons in human periventricular heterotopia.131513251315-25Long-range, directed migration is particularly dramatic in the cerebral cortex, where postmitotic neurons generated deep in the brain migrate to form layers with distinct form and function. In the X-linked dominant human disorder periventricular heterotopia (PH), many neurons fail to migrate and persist as nodules lining the ventricular surface. Females with PH present with epilepsy and other signs, including patent ductus arteriosus and coagulopathy, while hemizygous males die embryonically. We have identified the PH gene as filamin 1 (FLN1), which encodes an actin-cross-linking phosphoprotein that transduces ligand-receptor binding into actin reorganization, and which is required for locomotion of many cell types. FLN1 shows previously unrecognized, high-level expression in the developing cortex, is required for neuronal migration to the cortex, and is essential for embryogenesis.FoxJ WJWDepartment of Neurology, Beth Israel Deaconess Medical Center, Harvard Institutes of Medicine, Boston, Massachusetts 02115, USA.LampertiE DEDEkşioğluY ZYZHongS ESEFengYYGrahamD ADASchefferI EIEDobynsW BWBHirschB ABARadtkeR ARABerkovicS FSFHuttenlocherP RPRWalshC ACAengR01 NS35129NSNINDS NIH HHSUnited StatesJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, P.H.S.