Figure 4From: The Adhesion GPCR GPR125 is specifically expressed in the choroid plexus and is upregulated following brain injuryIn situ hybridization combined with immunohistochemistry on free floating sections using 400 ng of digoxigenin (DIG)-labeled mouse GPR125 antisense probe stained with Fast Red enzyme substrate (A-C), white cell nucleus staining with (1:1000) DAPI (A), green staining with the (1:400) epithelial-cell-specific pan-cytokeratin antibody (A and B) and dark blue (1:500) glial fibrillary acidic protein (GFAP) staining (B and C). A) The z-stack function of the confocal microscope rendered 9 layers together to form this 3-dimensional image illustrating GPR125 expression in the cytoplasm around the DAPI-stained nuclei. Separate images are provided for the 3 channels followed by the merged images in the final panel. B) At higher magnification (63× objective), staining for the cytokeratin protein follows the edge of GPR125-labeled cells which illustrates co-localization. C) To show that GPR125 staining is predominantly in the choroid plexus, GFAP was used to stain ependymal cells which line the walls of the ventricle.Back to article page