Presence of FPr in porcine corpora lutea-derived microvascular endothelial cells (pCL-MVECs) and porcine Aortic Endothelial Cells (pAECs). A) Relative FPr mRNA expression. The results are presented as Delta Ct (HPRT Ct - FPr Ct). B) FPr protein content. The results are presented as AU (arbitrary units). Data represent mean ± SD. Different letters indicate statistically significant differences (P < 0.05). C) Representative Western blotting of FPr.