Elsinochrome A is a perylenequinone fungal metabolite that has been found in Hypomyces and has anticancer activity.1 Photoactivation of elsinochrome A induces the production of singlet oxygen and apoptosis in R366.4 rhesus monkey embryonic stem cells and HCe-8693 colorectal carcinoma cells when used at concentrations ranging from 1 to 100 µM.
1.Ma, L., Tai, H., Li, C., et al.Photodynamic inhibitory effects of three perylenequinones on human colorectal carcinoma cell line and primate embryonic stem cell lineWorld J. Gastroenterol.9(3)485-490(2003)