In HepG2 cells transfected with estrogen receptor (ER) β or diffrent ERα
functional receptor mutants and the Vit-ERE-TATA-Luc reporter gene, all diarylheptanoids induced
transcription through a ligand-dependent human ERα-ERE–driven pathway, which was abolished
with ICI 182,780 (ER antagonist), whereas only D2 was active with ERβ