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Gene expression analysis of the embryonic subplate

AutorArbones, Maria L.
Palabras claveLaser capture microdissection
Embryonic development
Gene expression
Cerebral cortex
Fecha de publicación2012
EditorOxford University Press
CitaciónCerebral Cortex 22: 1343 (2012)
ResumenThe subplate layer of the cerebral cortex is comprised of a heterogeneous population of cells and contains some of the earliest-generated neurons. In the embryonic brain, subplate cells contribute to the guidance and areal targeting of thalamocortical axons. At later stages, they are involved in the maturation and plasticity of the cortical circuitry and the establishment of functional modules. We aimed to further characterize the embryonic murine subplate population by establishing a gene expression profile at embryonic day 15.5 using laser capture microdissection and microarrays. The microarray identified over 300 transcripts with higher expression in the subplate compared to the cortical plate at this stage. Using quantitative RT-PCR, in situ hybridization and immunohistochemistry, we have confirmed specific expression in the E15.5 subplate for 13 selected genes which have not been previously associated with this compartment (Abca8a, Cdh10, Cdh18, Csmd3, Gabra5, Kcnt2, Ogfrl1, Pls3, Rcan2, Sv2b, Slc8a2, Unc5c and Zdhhc2). In the reeler mutant, the expression of the majority of these genes (9 out of 13) was shifted in accordance with the altered position of subplate. These genes belong to several functional groups and likely contribute to the maturation and electrophysiological properties of subplate cells and to axonal growth and guidance.
Versión del editorhttps://www.doi.org/10.1093/cercor/bhr197
Identificadoresissn: 1047-3211
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