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Intermediate targets in formation of topographic projections: inputs from the thalamocortical system.
Garel, Sonia; Rubenstein, John L R.
Affiliation
  • Garel S; INSERM U368, Ecole Normale Supérieure- 46 rue d'Ulm 75230 Paris cedex 05, France.
Trends Neurosci ; 27(9): 533-9, 2004 Sep.
Article in En | MEDLINE | ID: mdl-15331235
Topography of axonal projections has been generally thought to arise from positional information located within the projecting and targeted structures, independent of events along the path or within the axonal bundle. Recent evidence suggests that in the projection from the dorsal thalamus to the neocortex, initial rostrocaudal targeting of axons is regulated at the level of an intermediate target, the subcortical telencephalon. In this system, thalamic axons are spatially positioned within the subcortical telencephalon, partly via interactions between EphAs and ephrin-As, and this positioning apparently determines the rostrocaudal level of the neocortex that the axons will initially target.
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Database: MEDLINE Main subject: Axons / Thalamus / Brain Mapping / Cerebral Cortex / Neural Pathways Type of study: Prognostic_studies Language: En Journal: Trends Neurosci Year: 2004 Type: Article Affiliation country: France
Search on Google
Database: MEDLINE Main subject: Axons / Thalamus / Brain Mapping / Cerebral Cortex / Neural Pathways Type of study: Prognostic_studies Language: En Journal: Trends Neurosci Year: 2004 Type: Article Affiliation country: France