CELL MIGRATION IN THE FOREBRAIN

Annual Review of Neuroscience

Vol. 26:441-483 (Volume publication date March 2003)
First published online as a Review in Advance on February 26, 2003
https://doi.org/10.1146/annurev.neuro.26.041002.131058

Abstract

AbstractThe forebrain comprises an intricate set of structures that are required for some of the most complex and evolved functions of the mammalian brain. As a reflection of its complexity, cell migration in the forebrain is extremely elaborated, with widespread dispersion of cells across multiple functionally distinct areas. Two general modes of migration are distinguished in the forebrain: radial migration, which establishes the general cytoarchitectonical framework of the different forebrain subdivisions; and tangential migration, which increases the cellular complexity of forebrain circuits by allowing the dispersion of multiple neuronal types. Here, we review the cellular and molecular mechanisms underlying each of these types of migrations and discuss how emerging concepts in neuronal migration are reshaping our understanding of forebrain development in normal and pathological situations.

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