Differential binding patterns of three antibodies (VOBM1, VOBM2, and VOM2) in the rat vomeronasal organ and accessory olfactory bulb |
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| Authors: | Junko Yoshida Toshiya Osada Yuji Mori Masumi Ichikawa |
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| Institution: | (1) Laboratory of Veterinary Ethology, University of Tokyo, Bunkyo-ku, 113 Tokyo, Japan;(2) Department of Biological Sciences, Tokyo Institute of Technology, Midori-ku, 227 Yokohama, Japan;(3) Department of Anatomy and Embryology, Tokyo Metropolitan Institute for Neuroscience, Fuchu, 2-6 Musashidai Tokyo, 183, Japan |
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| Abstract: | Immunohistochemical properties of monoclonal antibodies raised against the rat vomeronasal epithelium were examined in adult rats. Three monoclonal antibodies, VOBM1, VOBM2, and VOM2, reacted specifically to the luminal surface of the sensory epithelium of the vomeronasal organ. In addition, the reactivities of VOBM1 and VOBM2 were detected in the vomeronasal nerve layer and the glomerular layer of the accessory olfactory bulb. Electron-microscopic study revealed differential patterns of the immunoreactivity of the three antibodies to the microvilli of vomeronasal sensory epithelium. VOBM1 immunoreactivity was found on the microvilli of the supporting cells, whereas VOBM2 immunoreactivity was found on those of the sensory cells. VOM2 immunoreactivity was observed on the microvilli of both the sensory and supporting cells. These results suggest that the three antibodies recognize different antigens on the vomeronasal sensory epithelium. In particular, VOBM2 antibody appears to react to an antigen specific to the microvilli of the vomeronasal sensory cells. |
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| Keywords: | Vomeronasal system Microvilli Monoclonal antibody Pheromone Rat (Sprague Dawley) |
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