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. 2003 Oct 8;23(27):9254–9262. doi: 10.1523/JNEUROSCI.23-27-09254.2003

Figure 5.

Figure 5.

P2Y(2) is expressed at the gliovascular interface by astrocytic end feet. A, B, P2Y(2) immunoreactivity around a large vessel (A, red) and GFAP expression in the same field (B, white). C, Double immunoreactivity against P2Y(2) (red) and RECA (white). P2Y immunoreactivity is localized around the RECA-positive endothelial cells. D, Cross section of a GFAP-positive vessel counterstained against P2Y(2) receptors showing colocalization (red). E, In comparison, P2Y(2) expression (red) is localized outside the endothelial cell layer (RECA; white) in another cross section. Scale bar: A, B, 20 μm; C, 35 μm; D, E, 40 μm.