Neural development is dependent on the function of specificity protein 2 in cell cycle progression

H. Liang, G. Xiao, H. Yin, S. Hippenmeyer, J. Horowitz, T. Ghashghaei, Development 140 (2013) 552–561.


Journal Article | Published | English
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Abstract
Faithful progression through the cell cycle is crucial to the maintenance and developmental potential of stem cells. Here, we demonstrate that neural stem cells (NSCs) and intermediate neural progenitor cells (NPCs) employ a zinc-finger transcription factor specificity protein 2 (Sp2) as a cell cycle regulator in two temporally and spatially distinct progenitor domains. Differential conditional deletion of Sp2 in early embryonic cerebral cortical progenitors, and perinatal olfactory bulb progenitors disrupted transitions through G1, G2 and M phases, whereas DNA synthesis appeared intact. Cell-autonomous function of Sp2 was identified by deletion of Sp2 using mosaic analysis with double markers, which clearly established that conditional Sp2-null NSCs and NPCs are M phase arrested in vivo. Importantly, conditional deletion of Sp2 led to a decline in the generation of NPCs and neurons in the developing and postnatal brains. Our findings implicate Sp2-dependent mechanisms as novel regulators of cell cycle progression, the absence of which disrupts neurogenesis in the embryonic and postnatal brain.
Publishing Year
Date Published
2013-02-01
Journal Title
Development
Volume
140
Issue
3
Page
552 - 561
IST-REx-ID

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Liang H, Xiao G, Yin H, Hippenmeyer S, Horowitz J, Ghashghaei T. Neural development is dependent on the function of specificity protein 2 in cell cycle progression. Development. 2013;140(3):552-561. doi:10.1242/dev.085621
Liang, H., Xiao, G., Yin, H., Hippenmeyer, S., Horowitz, J., & Ghashghaei, T. (2013). Neural development is dependent on the function of specificity protein 2 in cell cycle progression. Development, 140(3), 552–561. https://doi.org/10.1242/dev.085621
Liang, Huixuan, Guanxi Xiao, Haifeng Yin, Simon Hippenmeyer, Jonathan Horowitz, and Troy Ghashghaei. “Neural Development Is Dependent on the Function of Specificity Protein 2 in Cell Cycle Progression.” Development 140, no. 3 (2013): 552–61. https://doi.org/10.1242/dev.085621 .
H. Liang, G. Xiao, H. Yin, S. Hippenmeyer, J. Horowitz, and T. Ghashghaei, “Neural development is dependent on the function of specificity protein 2 in cell cycle progression,” Development, vol. 140, no. 3, pp. 552–561, 2013.
Liang H, Xiao G, Yin H, Hippenmeyer S, Horowitz J, Ghashghaei T. 2013. Neural development is dependent on the function of specificity protein 2 in cell cycle progression. Development. 140(3), 552–561.
Liang, Huixuan, et al. “Neural Development Is Dependent on the Function of Specificity Protein 2 in Cell Cycle Progression.” Development, vol. 140, no. 3, Company of Biologists, 2013, pp. 552–61, doi:10.1242/dev.085621 .

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PMID: 23293287
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