First Author | Kang SH | Year | 2010 |
Journal | Neuron | Volume | 68 |
Issue | 4 | Pages | 668-81 |
PubMed ID | 21092857 | Mgi Jnum | J:167748 |
Mgi Id | MGI:4879071 | Doi | 10.1016/j.neuron.2010.09.009 |
Citation | Kang SH, et al. (2010) NG2+ CNS glial progenitors remain committed to the oligodendrocyte lineage in postnatal life and following neurodegeneration. Neuron 68(4):668-81 |
abstractText | The mammalian CNS contains a ubiquitous population of glial progenitors known as NG2+ cells that have the ability to develop into oligodendrocytes and undergo dramatic changes in response to injury and demyelination. Although it has been reported that NG2+ cells are multipotent, their fate in health and disease remains controversial. Here, we generated PDGFalphaR-CreER transgenic mice and followed their fate in vivo in the developing and adult CNS. These studies revealed that NG2+ cells in the postnatal CNS generate myelinating oligodendrocytes, but not astrocytes or neurons. In regions of neurodegeneration in the spinal cord of ALS mice, NG2+ cells exhibited enhanced proliferation and accelerated differentiation into oligodendrocytes but remained committed to the oligodendrocyte lineage. These results indicate that NG2+ cells in the normal CNS are oligodendrocyte precursors with restricted lineage potential and that cell loss and gliosis are not sufficient to alter the lineage potential of these progenitors. |