Adult generation of glutamatergic olfactory bulb interneurons

Monika S. Brill, Jovica Ninkovic, Eleanor Winpenny, Rebecca D. Hodge, Ilknur Ozen, Roderick Yang, Alexandra Lepier, Sergio Gascón, Ferenc Erdelyi, Gabor Szabo, Carlos Parras, Francois Guillemot, Michael Frotscher, Benedikt Berninger, Robert F. Hevner, Olivier Raineteau, Magdalena Götz

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228 Citations (Scopus)

Abstract

The adult mouse subependymal zone (SEZ) harbors neural stem cells that are thought to exclusively generate GABAergic interneurons of the olfactory bulb. We examined the adult generation of glutamatergic juxtaglomerular neurons, which had dendritic arborizations that projected into adjacent glomeruli, identifying them as short-axon cells. Fate mapping revealed that these originate from Neurog2-and Tbr2-expressing progenitors located in the dorsal region of the SEZ. Examination of the progenitors of these glutamatergic interneurons allowed us to determine the sequential expression of transcription factors in these cells that are thought to be hallmarks of glutamatergic neurogenesis in the developing cerebral cortex and adult hippocampus. Indeed, the molecular specification of these SEZ progenitors allowed for their recruitment into the cerebral cortex after a lesion was induced. Taken together, our data indicate that SEZ progenitors not only produce a population of adult-born glutamatergic juxtaglomerular neurons, but may also provide a previously unknown source of progenitors for endogenous repair.

Original languageEnglish
Pages (from-to)1524-1533
Number of pages10
JournalNature Neuroscience
Volume12
Issue number12
DOIs
Publication statusPublished - Dec 2009

ASJC Scopus subject areas

  • Neuroscience(all)

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    Brill, M. S., Ninkovic, J., Winpenny, E., Hodge, R. D., Ozen, I., Yang, R., Lepier, A., Gascón, S., Erdelyi, F., Szabo, G., Parras, C., Guillemot, F., Frotscher, M., Berninger, B., Hevner, R. F., Raineteau, O., & Götz, M. (2009). Adult generation of glutamatergic olfactory bulb interneurons. Nature Neuroscience, 12(12), 1524-1533. https://doi.org/10.1038/nn.2416