Postnatal expression of HGF/SF,c-met, and tPA in the olfactory system. The left panels are bright-field images, and the right panels are corresponding dark-field images. Hybridization of³⁵S-labeled antisense cRNA probes with postnatal sagittal sections. A, Expression of HGF/SF is observed in the RMS from the anterior lateral ventricle into the olfactory bulb at P0.B, Expression of HGF/SF in the RMS at P8.C, Expression of c-met in the P8 olfactory bulb is observed in the MCL and the AON. D, Expression of tPA in the P8 olfactory bulb. Scale bar, 255 μm. See legend to Figure 3 for abbreviations.