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Comparative gene expression in adult SVZ-neurospheres differentiated under standard conditions and upon manipulations of Pax6 (OE) and/or Pbx1 (KD/OE)

ABSTRACT: We used microarrays to detail the global programme of gene expression underlying neuronal differentiation of SVZ-neurospheres when manipulating Pax6 expression in the presence or absence of Pbx1

ORGANISM(S): Mus musculus

PROVIDER: GSE172449 | GEO | 2021/10/12

REPOSITORIES: GEO

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Project description:We report two sets of potential circadian clock target genes by high-throughput transcriptome profiling (RNA-sequencing): one set from the corpus callosum of the adult mouse brain and the other set from adult neural stem cell cultured from the SVZ (neurospheres) of the mouse brain. First, the corpus callosum was dissected from three adult wild-type and two Bmal1 knockout (Bmal1-/-) mice, mRNA profiles were generated by deep sequencing using BGISEQ-500 RNA-Seq platform. The sequence reads that passed quality control were analyzed: we mapped more than 21 million total clean reads, more than 96% total Mapping Ratio, more than 86% Uniquely Mapping Ratio per sample to mouse genome. qRT-PCR validation with primers covering at least 3 known housekeeping genes and at least 5 well-known circadian clock genes were performed with SYBR Green assay. 103 differentially expressed genes (DEGs) were identified in the corpus callosum of Bmal1-/- mice (58 up-regulated and 45 down-regulated genes; |log2FC| > 1 & adjusted P-value < 0.05). Hypergeometric test revealed that potential functions of circadian clock target genes in the corpus callosum are secreted proteins as signaling molecules. For the second set of data, neurospheres were cultured from the SVZ of three adult wild-type and three adult Bmal1-/- mice, mRNA profiles were generated by deep sequencing using BGISEQ-500 RNA-Seq platform. The sequence reads that passed quality control were analyzed: we mapped more than 28 million total clean reads, more than 97% total Mapping Ratio, more than 68% Uniquely Mapping Ratio per sample to mouse genome. qRT-PCR validation with at least 3 known housekeeping genes and at least 5 well-known circadian clock genes using SYBR Green assay. 30 DEGs were identified in neurospheres cultured from Bmal1-/- mice (17 up-regulated and 13 down-regulated genes; |log2FC| > 1 & adjusted P-value < 0.05). Gene Set Enrichment Analysis (GSEA) revealed that potential circadian clock associated functions in the SVZ (neurospheres) are controlling diverse signal transductions.

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Comparative gene expression in adult SVZ-neurospheres differentiated under standard conditions and upon manipulations of Pax6 (OE) and/or Pbx1 (KD/OE)

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