NewslettersUmbilical & Placental Cell News GDF-11 Downregulates Placental Human Chorionic Gonadotropin Expression by Activating SMAD2/3 Signaling By Laurisa Dohm - July 27, 2023 0 The effects of growth differentiation factor-11 (GDF-11) on CGB expression and human chorionic gonadotropin production, as well as the underlying mechanisms, were explored by a series of in vitro experiments. [Cell Communication And Signaling] Full Article