Figure 2From: Estrogen receptor transcription and transactivation Estrogen receptor alpha and estrogen receptor beta: regulation by selective estrogen receptor modulators and importance in breast cancerTranscription activation assays demonstrating that a tetrahydrochrysene (THC) ligand is an agonist on ERα and an antagonist on ERβ. Transfection assays were conducted in human endometrial cancer cells using an estrogen-responsive reporter gene and either ERα or ERβ [14**].Back to article page