Helichrysetin, isolated from the flowers of Helichrysum odoratissimum, is an ID2 (inhibitor of DNA binding 2) inhibitor, and suppresses DCIS (ductal carcinoma in situ) formation. Helichrysetin possess strong inhibitory effects on cell growth and is capable of inducing apoptosis in A549 cells[1][2].
[1]. Liu Y, et al. ID2 and GJB2 promote early-stage breast cancer progression by regulating cancer stemness. Breast Cancer Res Treat. 2019 May;175(1):77-90.
[2]. Ho YF, et al. Induction of apoptosis and cell cycle blockade by helichrysetin in a549 human lung adenocarcinoma cells. Evid Based Complement Alternat Med. 2013;2013:857257.