Figure 7.

In situ hybridization of rabbit EP2 showing mRNAdistribution in rabbit kidney (A) and uterus (B). A: autoradiographydemonstrating low and ubiquitous expression of EP2 mRNA expression inrabbit kidney. Dark black areas indicate regions of hybridization with the antisense riboprobe (right panel). In contrast, no hybridization was seen using a sense probe (left panel). B: In situ hybridization showing rabbit EP₂ mRNA signals in the uterus. Autoradiography (left panels) and photomicrograph (right panel, 400 Xdarkfield, white grains) showing specific hybridization of the antisense probe to uterus endometrium.