The nystagmus-associated FRMD7 gene regulates neuronal outgrowth and development.

Abstract:

:Mutations in the gene encoding FERM domain-containing 7 protein (FRMD7) are recognized as an important cause of X-linked idiopathic infantile nystagmus (IIN). However, the precise role of FRMD7 and its involvement in the pathogenesis of IIN are not understood. In the present study, we have explored the role of FRMD7 in neuronal development. Using in situ hybridization and immunohistochemistry, we reveal that FRMD7 expression is spatially and temporally regulated in both the human and mouse brain during embryonic and fetal development. Furthermore, we show that FRMD7 expression is up-regulated upon retinoic acid (RA)-induced differentiation of mouse neuroblastoma NEURO2A cells, suggesting FRMD7 may play a role in this process. Indeed, we demonstrate, for the first time, that knockdown of FRMD7 during neuronal differentiation results in altered neurite development. Taken together, our data suggest that FRMD7 is involved in multiple aspects of neuronal development, and have direct importance to further understanding the pathogenesis of IIN.

journal_name

Hum Mol Genet

journal_title

Human molecular genetics

authors

Betts-Henderson J,Bartesaghi S,Crosier M,Lindsay S,Chen HL,Salomoni P,Gottlob I,Nicotera P

doi

10.1093/hmg/ddp500

subject

Has Abstract

pub_date

2010-01-15 00:00:00

pages

342-51

issue

2

eissn

0964-6906

issn

1460-2083

pii

ddp500

journal_volume

19

pub_type

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