Fig. 1

Island cells preferentially express dopamine D1 receptor in MEC. A Parasagittal sections of MEC fluorescence double in situ hybridization with anti-Wfs1 (green) and anti–D1R (red). B Magnified image from A. Arrowheads indicates Wfs1⁺/D1R⁺ cell-clusters. C Parasagittal sections of MEC fluorescence double in situ hybridization with anti-Reelin (green) and anti–D1R (red). D Magnified image from C. Fluorescence double in situ hybridization for D1R, Wfs1 and Reelin mRNA. MECII Wfs1⁺ cells, but not Reelin⁺ cells, express D1R. E Parasagittal sections of MEC immunostained with anti-Wfs1 (green) and anti–D1R (red). F Magnified image from E. Arrowheads indicates Wfs1⁺/D1R⁺ cell-clusters. Scale bar, 200 μm in A, C and E, 50 μm in B, D and F.