Segregated expression of neurestin in the developing olfactory bulb |
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Authors: | Otaki J M Firestein S |
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Affiliation: | Department of Biological Sciences, Columbia University, New York, NY 10027, USA. |
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Abstract: | Neurestin is a putative transmembrane protein whose expression is developmentally regulated in neurons. Here we examined neurestin expression pattern in mitral/tufted cells in the developing rat olfactory bulb. In the main olfactory bulb, neurestin expression was segregated in the dorso-rostral area and in the ventro-caudal area, but not in between. In the accessory olfactory bulb, neurestin expression was found only in the far caudal area. This area did not completely correspond to a caudal half of the vomeronasal nerve and glomerular layers positive for a G-protein Go alpha. These spatio-temporal expression patterns suggest that neurestin functions as a target recognition molecule that specifies zonal projection patterns of olfactory and vomeronasal sensory neurons. |
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