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Stricker, S.* ; Meiri, K.* ; Götz, M.

P-GAP-43 is enriched in horizontal cell divisions throughout rat cortical development.

Cereb. Cortex, 1, 121-131 (2006)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Asymmetric cell divisions are correlated to neurogenesis in the mammalian cortex and occur often with a horizontal orientation of cell division. However, the molecular mechanisms of spindle orientation or asymmetric cell divisions are not well understood in the developing mammalian central nervous system. Here we show a new molecular marker for horizontally dividing precursors in the mammalian telencephalon. The antibody 2G12 directed against phosphorylated serine of growth associated protein 43 (GAP-43) labels postmitotic neurons and a subset of cells in mitoses in the developing rat telencephalon. 2G12 immunoreactivity was found at a high frequency in mitotic cells dividing parallel to the ventricular surface throughout neurogenesis (embryonic day 13-17) in the cerebral cortex and ganglionic eminence. Interestingly, we detected the same predominance of 2G12 immunoreactivity in horizontally dividing cells in the subventricular zone, the second proliferative layer that has recently been involved in the generation of neurons. Moreover, 2G12 immunostaining is no longer detectable in mitotic cells of the ventricular zones at E21, the onset of gliogenesis in rat telencephalon. These data imply GAP-43 phosphorylation in the phase of neuronal commitment during M-phase and present to our knowledge the first molecular correlate to horizontally dividing precursors in mammalian neurogenesis.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter asymmetric cell division; basal progenitor; GAP-43; subventricular zone
ISSN (print) / ISBN 1047-3211
e-ISSN 1460-2199
Zeitschrift Cerebral Cortex
Quellenangaben Band: , Heft: , Seiten: 121-131, Artikelnummer: , Supplement: 1
Verlag Oxford University Press
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Stem Cell Research (ISF)