Cited by 464Neurogenesis and neuroplasticity mechanismsDevelopmental Biology and Gene RegulationGlioma Diagnosis and Treatment

Age-dependent fate and lineage restriction of single NG2 cells

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Zhu, Xiaoqin, Hill, Robert A., Dietrich, Dirk, Komitova, Mila, Suzuki, Ryusuke, Nishiyama, Akiko·2011·Development

Abstract

NG2-expressing glia (NG2 cells, polydendrocytes) appear in the embryonic brain, expand perinatally, and persist widely throughout the gray and white matter of the mature central nervous system. We have previously reported that NG2 cells generate oligodendrocytes in both gray and white matter and a subset of protoplasmic astrocytes in the gray matter of the ventral forebrain and spinal cord. To investigate the temporal changes in NG2 cell fate, we generated NG2creER™BAC transgenic mice, in which tamoxifen-inducible Cre is expressed in NG2 cells. Cre induction at embryonic day 16.5, postnatal day (P) 2, P30 and P60 in mice that were double transgenic for NG2creER™BAC and the Cre reporter revealed that NG2 cells in the postnatal brain generate only NG2 cells or oligodendrocytes, whereas NG2 cells in the embryonic brain generate protoplasmic astrocytes in the gray matter of the ventral forebrain in addition to oligodendrocytes and NG2 cells. Analysis of cell clusters from single NG2 cells revealed that more than 80% of the NG2 cells in the P2 brain give rise to clusters consisting exclusively of oligodendrocytes, whereas the majority of the NG2 cells in the P60 brain generate clusters that contain only NG2 cells or a mixture of oligodendrocytes and NG2 cells. Furthermore, live cell imaging of single NG2 cells from early postnatal brain slices revealed that NG2 cells initially divide symmetrically to produce two daughter NG2 cells and that differentiation into oligodendrocytes occurred after 2-3 days.

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  • Approximately 30% of all OLs present in the corpus callosum of 8-month-old mice are generated after 7 weeks of age.

    “The scale of new OL genesis in the adult is unexpectedly large: ∼30% of all OLs present in the corpus callosum of 8-month-old mice are generated after 7 weeks of age (Rivers et al., 2008; Zhu et al., 2011).”

    From Oligodendrocyte Dynamics in the Healthy Adult CNS: Evidence for Myelin Remodeling (2013) · cites this paper as Zhu et al., 2011

    The Results and Discussion (page numbers not supplied) estimate that 30% of corpus-callosum oligodendrocytes in P120 mice were generated from NG2 cells between P60 and P120. This supports the approximate proportion but not the claim's ages: the paper measures mice at about 4 months, not 8 months, and begins tracking at P60, not 7 weeks. (LLM, conf=0.88)

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Research works printed but not linked: 2

  1. Bhat R. V., Axt K. J., Fosnaugh J. S., Smith K. J., Johnson K. A., Hill D. E., Kinzler K. W., Barabau J. M. (1996). Expression of the APC tumor suppressor protein in oligodendroglia. Glia 17, 169-174 [DOI] [PubMed] [Google Scholar]
  2. Nishiyama A., Lin X. H., Giese N., Heldin C. H., Stallcup W. B. (1996). Colocalization of NG2 proteoglycan and PDGF alpha-receptor on O2A progenitor cells in the developing rat brain. J. Neurosci. Res. 43, 299-314 [DOI] [PubMed] [Google Scholar]

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Authors
Zhu, X., Hill, R. A., Dietrich, D., Komitova, M., Suzuki, R., & Nishiyama, A.
Affiliations
  • University of Connecticut (US)
  • University Hospital Bonn (DE)
Venue
Development
Published
2011-02-15
Volume
138
Issue
4
Pages
745-753
ISSN
  • 0950-1991 (ISSN-L)
  • 1477-9129
OpenAlex
W1995291424
Cited by
464
References
39
Citations by year
2026: 12 · 2025: 21 · 2024: 25 · 2023: 25 · 2022: 31 · 2021: 44 · 2020: 38 · 2019: 34 · 2018: 42 · 2017: 32 · 2016: 38 · 2015: 33 · 2014: 31 · 2013: 25 · 2012: 20
FWCI
9.29
Type
journal article
Language
en
Open access
Locations
  • Development (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Multiple Sclerosis Society
  • Johns Hopkins University
  • National Institutes of Health
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Health Sciences › Medicine › Genetics › Glioma Diagnosis and Treatment
Keywords
oligodendrocyte precursor cells, oligodendrocyte differentiation, protoplasmic astrocyte, lineage restriction, cell fate, symmetric cell division, postnatal brain development, embryonic brain, ventral forebrain, live-cell imaging
MeSH terms
Chondroitin Sulfate Proteoglycan 4, Aging, Animals, Antigens, Cell Differentiation, Mice, Transgenic, Oligodendroglia, Promoter Regions, Genetic, Proteoglycans, Gene Expression Regulation, Developmental, Cell Lineage, Mice

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