Base Sequence 3 Bewo cell 3 Blotting, Western 3 Cell Line, Tumor 3 Chorionic Gonadotropin 3 Cyclic AMP 3 Cyclic AMP-Dependent Protein Kinases 3 DNA Primers 3 EPAC protein 3 Enzyme Activation 3 Female 3 Guanine Nucleotide Exchange Factors 3 Humans 3 Leptin 3 MAP Kinase Signaling System 3 Placenta 3 Pregnancy 3 Rap1 protein 3 Real-Time Polymerase Chain Reaction 3 article 3 cell line 3 cell strain JEG 3 3 chorionic gonadotropin 3 controlled study 3 cyclic AMP 3 cyclic AMP dependent protein kinase 3 cyclic AMP dependent protein kinase inhibitor 3 cyclic AMP derivative 3 cyclic AMP responsive element 3 cyclic AMP responsive element binding protein 3