– Tanshindiol C protects macrophages from oxLDL induced foam cell formation via activation of Prdx1/ABCA1 signaling and that Prdx1 may be a novel target for therapeutic intervention of atherosclerosis.It possesses a unique anti-cancer activity whose mechanism involves the inhibition of EZH2 activity and would provide chemically valuable information for designing a new class of potent EZH2 inhibitors.