Transcriptomics

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FACS microarray analysis of radially migrating cortical neurons


ABSTRACT: During the developmental formation of 6-layered neocortical structure of mammalian cerebral cortex, newborn excitatory neurons depart the ventricular zone and migrate toward the pial surface. At a middle stage of cortical development, newly differentiated postmitotic neurons adopt a multipolar shape (MP), and exhibit a random non-directional migration in the intermediate zone (multipolar migration). When these neurons pass through the subplate layer (SP), they convert to a bipolar shape (BP), and then migrate radially toward the pial surface (locomotion). In order to elucidate the molecular mechanisms of such neuronal migration, we performed a gene expression profiling of newborn excitatory neurons during their migration processes. After in utero electroporation of GFP expressing plasmid into E14 mouse cortex, GFP-positive cells were collected using FACS sorting method after one, two, or three days of electroporation. RNAs of collected GFP-positive cells at each day were purified and applied to microarray analyses. gene-ontology and pathway analyses revealed that genes encoding synaptic proteins, receptors and ECM-related proteins were up-regulated as the migration proceeds. On the other hand, genes encoding cell cycle regulation and immune-related proteins were down-regulated. We will discuss the relationship between the migration mode and the transition of the gene expression.

ORGANISM(S): Mus musculus

PROVIDER: GSE102911 | GEO | 2017/08/23

SECONDARY ACCESSION(S): PRJNA399261

REPOSITORIES: GEO

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