Aspidin BB is a phloroglucinol derivative, which can be isolated from the aerial part of Dryopteris championii. Aspidin BB has anticancer activity. Aspidin BB induces cell cycle arrest and apoptosis in human ovarian HO-8910 cells.
Aspidin BB (0-100 μM, 24-72 h) significantly inhibits HO-8910 cell proliferation in a dose- and time-dependent manner. The IC50 values are 15.02, 25.79 and 68.81 μM after 72, 48 and 24 h treatment, respectively[1].Aspidin BB suppresses Bcl-2 expression and enhances Bax expression to desintegrate the outer mitochondrial membrane, then causes cytochrome c release which leads to the activation of effector caspase-3, and further cleaves the poly ADP-ribose polymerase (PARP) in the nucleus, finally induces cell apoptosis[1]. Aspidin BB provokes S phase arrest in HO-8910 cells with up-regulation of pRb, E2F1, CDK2, cyclin E and cyclin A proteins[1].
References:
[1]. Sun Y, et al. Aspidin BB, a phloroglucinol derivative, induces cell cycle arrest and apoptosis in human ovarian HO-8910 cells. Chem Biol Interact. 2013 Jul 5;204(2):88-97.
[2]. Chen NH, et al. Drychampones A-C: Three Meroterpenoids from Dryopteris championii. J Org Chem. 2016 Oct 7;81(19):9443-9448.