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Am J Med Genet A. 2010 Nov;152A(11):2736-42. doi: 10.1002/ajmg.a.33684.

Candidate gene sequencing of LHX2, HESX1, and SOX2 in a large schizencephaly cohort.

Author information

  • 1Department of Neurology, Children's Hospital Boston and Harvard Medical School, Boston, Massachusetts 02115, USA.

Abstract

Schizencephaly is a malformation of cortical development characterized by gray matter-lined clefts in the cerebral cortex and a range of neurological presentations. In some cases, there are features of septo-optic dysplasia concurrently with schizencephaly. The etiologies of both schizencephaly and septo-optic dysplasia are thought to be heterogeneous, but there is evidence that at least some cases have genetic origin. We hypothesized that these disorders may be caused by mutations in three candidate genes: LHX2, a gene with an important cortical patterning role, and HESX1 and SOX2, genes that have been associated with septo-optic dysplasia. We sequenced a large cohort of patients with schizencephaly, some with features of septo-optic dysplasia, for mutations in these genes. No pathogenic mutations were observed, suggesting that other genes or non-genetic factors influencing genes critical to brain development must be responsible for schizencephaly.

© 2010 Wiley-Liss, Inc.

Comment in

  • The role of cytomegalovirus in schizencephaly. [Am J Med Genet A. 2011]
PMID:
20949537
[PubMed - indexed for MEDLINE]
PMCID:
PMC2965295
Free PMC Article

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