Sonic hedgehog-regulated oligodendrocyte lineage genes encoding bHLH proteins in the mammalian central nervous system

Q. Richard Lu, Dong In Yuk, John A. Alberta, Zhimin Zhu, Inka Pawlitzky, Joanne Chan, Andrew P. McMahon, Charles D. Stiles, David H. Rowitch

Research output: Contribution to journalArticle

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Abstract

During development, basic helix-loop-helix (bHLH) proteins regulate formation of neurons from multipotent progenitor cells. However, bHLH factors linked to gliogenesis have not been described. We have isolated a pair of oligodendrocyte lineage genes (Olg-1 and Olg-2) that encode bHLH proteins and are tightly associated with development of oligodendrocytes in the vertebrate central nervous system (CNS). Ectopic expression of Olg-1 in rat cortical progenitor cell cultures promotes formation of oligodendrocyte precursors. In developing mouse embryos, Olg gene expression overlaps but precedes the earliest known markers of the oligodendrocyte lineage. Olg genes are expressed at the telencephalon-diencephalon border and adjacent to the floor plate, a source of the secreted signaling molecule Sonic hedgehog (Shh). Gain- and loss-of-function analyses in transgenic mice demonstrate that Shh is both necessary and sufficient for Olg gene expression in vivo.

Original languageEnglish (US)
Pages (from-to)317-329
Number of pages13
JournalNeuron
Volume25
Issue number2
StatePublished - 2000

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Hedgehogs
Oligodendroglia
Central Nervous System
Genes
Proteins
Stem Cells
Gene Expression
Diencephalon
Telencephalon
Transgenic Mice
Vertebrates
Embryonic Structures
Cell Culture Techniques
Neurons

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Lu, Q. R., Yuk, D. I., Alberta, J. A., Zhu, Z., Pawlitzky, I., Chan, J., ... Rowitch, D. H. (2000). Sonic hedgehog-regulated oligodendrocyte lineage genes encoding bHLH proteins in the mammalian central nervous system. Neuron, 25(2), 317-329.

Sonic hedgehog-regulated oligodendrocyte lineage genes encoding bHLH proteins in the mammalian central nervous system. / Lu, Q. Richard; Yuk, Dong In; Alberta, John A.; Zhu, Zhimin; Pawlitzky, Inka; Chan, Joanne; McMahon, Andrew P.; Stiles, Charles D.; Rowitch, David H.

In: Neuron, Vol. 25, No. 2, 2000, p. 317-329.

Research output: Contribution to journalArticle

Lu, QR, Yuk, DI, Alberta, JA, Zhu, Z, Pawlitzky, I, Chan, J, McMahon, AP, Stiles, CD & Rowitch, DH 2000, 'Sonic hedgehog-regulated oligodendrocyte lineage genes encoding bHLH proteins in the mammalian central nervous system', Neuron, vol. 25, no. 2, pp. 317-329.
Lu QR, Yuk DI, Alberta JA, Zhu Z, Pawlitzky I, Chan J et al. Sonic hedgehog-regulated oligodendrocyte lineage genes encoding bHLH proteins in the mammalian central nervous system. Neuron. 2000;25(2):317-329.
Lu, Q. Richard ; Yuk, Dong In ; Alberta, John A. ; Zhu, Zhimin ; Pawlitzky, Inka ; Chan, Joanne ; McMahon, Andrew P. ; Stiles, Charles D. ; Rowitch, David H. / Sonic hedgehog-regulated oligodendrocyte lineage genes encoding bHLH proteins in the mammalian central nervous system. In: Neuron. 2000 ; Vol. 25, No. 2. pp. 317-329.
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