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- W1496752555 endingPage "JCNSD.S23210" @default.
- W1496752555 startingPage "JCNSD.S23210" @default.
- W1496752555 abstract "Background Amyotrophic lateral sclerosis (ALS) is an intractable neurodegenerative disease that primarily affects motor neurons in the cerebral cortex and the spinal cord. Recent evidence indicates that dysfunction of oligodendrocytes is implicated in the pathogenesis of ALS. The basic helix–loop–helix (bHLH) transcription factor Olig2 plays a pivotal role in the development of both motor neurons and oligodendrocytes in the progenitor of motor neuron (pMN) domain of the spinal cord, supporting evidence for the shared motor neuron/oligodendrocyte lineage. However, a comprehensive profile of Olig2 target genes in pMNs and oligodendrocyte progenitor cells (OPCs) with relevance to the pathogenesis of ALS remains to be characterized. Methods By analyzing the ChIP-Seq datasets numbered SRP007566 and SRP015333 with the Strand NGS program, we identified genome-wide Olig2 target genes in pMNs and OPCs, followed by molecular network analysis using three distinct bioinformatics tools. Results We identified 5966 Olig2 target genes in pMNs, including Nkx2.2, Pax6, Irx3, Ngn2, Zep2 (Cip1), Trp3, Mnx1 (Hb9), and Cdkn1a, and 1553 genes in OPCs. The genes closely related to the keyword “alternative splicing” were enriched in the set of 740 targets overlapping between pMNs and OPCs. Furthermore, approximately one-third of downregulated genes in purified motor neurons of presymptomatic mutant SOD1 transgenic mice and in lumbar spinal cord tissues of ALS patients corresponded to Olig2 target genes in pMNs. Molecular networks of Olig2 target genes indicate that Olig2 regulates a wide range of genes essential for diverse neuronal and glial functions. Conclusions These observations lead to a hypothesis that aberrant regulation of Olig2 function, by affecting biology of both motor neurons and oligodendrocytes, might be involved in the pathogenesis of ALS." @default.
- W1496752555 created "2016-06-24" @default.
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- W1496752555 date "2015-01-01" @default.
- W1496752555 modified "2023-10-17" @default.
- W1496752555 title "A Comprehensive Profile of ChIP-Seq-Based Olig2 Target Genes in Motor Neuron Progenitor Cells Suggests the Possible Involvement of Olig2 in the Pathogenesis of Amyotrophic Lateral Sclerosis" @default.
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- W1496752555 doi "https://doi.org/10.4137/jcnsd.s23210" @default.
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