Linked Life Data

11937025

Source:http://linkedlifedata.com/resource/pubmed/id/11937025

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2002-4-8
pubmed:abstractText
Development of the multilayered cerebral cortex involves extensive regulated migration of neurons arising from the deeper germinative layers of the mammalian brain. The anatomy and formation of the cortical layers has been well characterized; however, the underlying molecular mechanisms that control the migration and the final positioning of neurons within the cortex remain poorly understood. Here, we report evidence for a key role of Ena/VASP proteins, a protein family implicated in the spatial control of actin assembly and previously shown to negatively regulate fibroblast cell speeds, in cortical development. Ena/VASP proteins are highly expressed in the developing cortical plate in cells bordering Reelin-expressing Cajal-Retzius cells and in the intermediate zone through which newly born cells migrate. Inhibition of Ena/VASP function through retroviral injections in utero led to aberrant placement of early-born pyramidal neurons in the superficial layers of both the embryonic and the postnatal cortex in a cell-autonomous fashion. The abnormally placed pyramidal neurons exhibited grossly normal morphology and polarity. Our results are consistent with a model in which Ena/VASP proteins function in vivo to control the position of neurons in the mouse neocortex.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0960-9822
pubmed:author
pubmed:issnType
Print
pubmed:day
2
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
565-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Ena/VASP proteins regulate cortical neuronal positioning.
pubmed:affiliation
Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't