Distinct behaviors of neural stem and progenitor cells underlie cortical neurogenesis. Noctor, S. C, Martı́nez-Cerdeño, Verónica, & Kriegstein, A. R J Comp Neurol, 508(1):28–44, May, 2008. abstract bibtex Neocortical precursor cells undergo symmetric and asymmetric divisions while producing large numbers of diverse cortical cell types. In Drosophila, cleavage plane orientation dictates the inheritance of fate-determinants and the symmetry of newborn daughter cells during neuroblast cell divisions. One model for predicting daughter cell fate in the mammalian neocortex is also based on cleavage plane orientation. Precursor cell divisions with a cleavage plane orientation that is perpendicular with respect to the ventricular surface (vertical) are predicted to be symmetric, while divisions with a cleavage plane orientation that is parallel to the surface (horizontal) are predicted to be asymmetric neurogenic divisions. However, analysis of cleavage plane orientation at the ventricle suggests that the number of predicted neurogenic divisions might be insufficient to produce large amounts of cortical neurons. To understand factors that correlate with the symmetry of cell divisions, we examined rat neocortical precursor cells in situ through real-time imaging, marker analysis, and electrophysiological recordings. We find that cleavage plane orientation is more closely associated with precursor cell type than with daughter cell fate, as commonly thought. Radial glia cells in the VZ primarily divide with a vertical orientation throughout cortical development and undergo symmetric or asymmetric self-renewing divisions depending on the stage of development. In contrast, most intermediate progenitor cells divide in the subventricular zone with a horizontal orientation and produce symmetric daughter cells. We propose a model for predicting daughter cell fate that considers precursor cell type, stage of development, and the planar segregation of fate determinants.
@ARTICLE{Noctor2008-ot,
title = "Distinct behaviors of neural stem and progenitor cells underlie
cortical neurogenesis",
author = "Noctor, Stephen C and Mart{\'\i}nez-Cerde{\~n}o, Ver{\'o}nica and
Kriegstein, Arnold R",
abstract = "Neocortical precursor cells undergo symmetric and asymmetric
divisions while producing large numbers of diverse cortical cell
types. In Drosophila, cleavage plane orientation dictates the
inheritance of fate-determinants and the symmetry of newborn
daughter cells during neuroblast cell divisions. One model for
predicting daughter cell fate in the mammalian neocortex is also
based on cleavage plane orientation. Precursor cell divisions
with a cleavage plane orientation that is perpendicular with
respect to the ventricular surface (vertical) are predicted to be
symmetric, while divisions with a cleavage plane orientation that
is parallel to the surface (horizontal) are predicted to be
asymmetric neurogenic divisions. However, analysis of cleavage
plane orientation at the ventricle suggests that the number of
predicted neurogenic divisions might be insufficient to produce
large amounts of cortical neurons. To understand factors that
correlate with the symmetry of cell divisions, we examined rat
neocortical precursor cells in situ through real-time imaging,
marker analysis, and electrophysiological recordings. We find
that cleavage plane orientation is more closely associated with
precursor cell type than with daughter cell fate, as commonly
thought. Radial glia cells in the VZ primarily divide with a
vertical orientation throughout cortical development and undergo
symmetric or asymmetric self-renewing divisions depending on the
stage of development. In contrast, most intermediate progenitor
cells divide in the subventricular zone with a horizontal
orientation and produce symmetric daughter cells. We propose a
model for predicting daughter cell fate that considers precursor
cell type, stage of development, and the planar segregation of
fate determinants.",
journal = "J Comp Neurol",
volume = 508,
number = 1,
pages = "28--44",
month = may,
year = 2008,
language = "en"
}
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One model for predicting daughter cell fate in the mammalian neocortex is also based on cleavage plane orientation. Precursor cell divisions with a cleavage plane orientation that is perpendicular with respect to the ventricular surface (vertical) are predicted to be symmetric, while divisions with a cleavage plane orientation that is parallel to the surface (horizontal) are predicted to be asymmetric neurogenic divisions. However, analysis of cleavage plane orientation at the ventricle suggests that the number of predicted neurogenic divisions might be insufficient to produce large amounts of cortical neurons. To understand factors that correlate with the symmetry of cell divisions, we examined rat neocortical precursor cells in situ through real-time imaging, marker analysis, and electrophysiological recordings. We find that cleavage plane orientation is more closely associated with precursor cell type than with daughter cell fate, as commonly thought. Radial glia cells in the VZ primarily divide with a vertical orientation throughout cortical development and undergo symmetric or asymmetric self-renewing divisions depending on the stage of development. In contrast, most intermediate progenitor cells divide in the subventricular zone with a horizontal orientation and produce symmetric daughter cells. We propose a model for predicting daughter cell fate that considers precursor cell type, stage of development, and the planar segregation of fate determinants.","journal":"J Comp Neurol","volume":"508","number":"1","pages":"28–44","month":"May","year":"2008","language":"en","bibtex":"@ARTICLE{Noctor2008-ot,\n title = \"Distinct behaviors of neural stem and progenitor cells underlie\n cortical neurogenesis\",\n author = \"Noctor, Stephen C and Mart{\\'\\i}nez-Cerde{\\~n}o, Ver{\\'o}nica and\n Kriegstein, Arnold R\",\n abstract = \"Neocortical precursor cells undergo symmetric and asymmetric\n divisions while producing large numbers of diverse cortical cell\n types. In Drosophila, cleavage plane orientation dictates the\n inheritance of fate-determinants and the symmetry of newborn\n daughter cells during neuroblast cell divisions. One model for\n predicting daughter cell fate in the mammalian neocortex is also\n based on cleavage plane orientation. Precursor cell divisions\n with a cleavage plane orientation that is perpendicular with\n respect to the ventricular surface (vertical) are predicted to be\n symmetric, while divisions with a cleavage plane orientation that\n is parallel to the surface (horizontal) are predicted to be\n asymmetric neurogenic divisions. However, analysis of cleavage\n plane orientation at the ventricle suggests that the number of\n predicted neurogenic divisions might be insufficient to produce\n large amounts of cortical neurons. To understand factors that\n correlate with the symmetry of cell divisions, we examined rat\n neocortical precursor cells in situ through real-time imaging,\n marker analysis, and electrophysiological recordings. We find\n that cleavage plane orientation is more closely associated with\n precursor cell type than with daughter cell fate, as commonly\n thought. Radial glia cells in the VZ primarily divide with a\n vertical orientation throughout cortical development and undergo\n symmetric or asymmetric self-renewing divisions depending on the\n stage of development. In contrast, most intermediate progenitor\n cells divide in the subventricular zone with a horizontal\n orientation and produce symmetric daughter cells. We propose a\n model for predicting daughter cell fate that considers precursor\n cell type, stage of development, and the planar segregation of\n fate determinants.\",\n journal = \"J Comp Neurol\",\n volume = 508,\n number = 1,\n pages = \"28--44\",\n month = may,\n year = 2008,\n language = \"en\"\n}\n\n","author_short":["Noctor, S. C","Martı́nez-Cerdeño, Verónica","Kriegstein, A. 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