7-oxo Staurosporine is an antibiotic originally isolated from S. platensis with diverse biological activites. It inhibits PKC, PKA, phosphorylase kinase, EGFR, and c-Src in vitro (IC50s = 9, 26, 5, 200, and 800 nM, respectively). 7-oxo Staurosporine induces cell cycle arrest in the G2/M phase in human leukemia K562 cells with a minimal effective dose (MED) of 30 ng/ml. It is cytotoxic to P388 mouse leukemia cells that are resistant and susceptible to doxorubicin . 7-oxo Staurosporine inhibits growth of the mycelial, but not yeast form of C. albicans, C. krusei, C. tropicalis, and C. lusitaniae (MICs = 3.1-25 μg/ml). It increases sphingomyelin synthesis in CHO-K1 cells when used at a concentration of 50 nM.
Pericosine A is a fungal metabolite that has been found inP. byssoidesand has anticancer activity.1It inhibits the growth of a variety of cancer cells, including breast, colon, lung, ovary, stomach, and prostate cell lines (GI50s = 0.05-24.55 μM) and increases survival in a P388 mouse xenograft model when administered at a dose of 25 mg/kg. Pericosine A inhibits EGFR by 40 to 70% when used at a concentration of 100 μg/ml. It also reacts with organosulfur compounds in skunk spray to form stable thioethers as odorless products.2 1.Yamada, T., Iritani, M., Ohishi, H., et al.Pericosines, antitumour metabolites from the sea hare-derived fungus Periconia byssoides. Structures and biological activitiesOrg. Biomol. Chem.5(24)3979-3986(2007) 2.Du, L., Munteanu, C., King, J.B., et al.An electrophilic natural product provides a safe and robust odor neutralization approach to counteract malodorous organosulfur metabolites encountered in skunk sprayJ. Nat. Prod.82(7)1989-1999(2019)
EGFR HER2-IN-7 is a highly selective and potent anticancer compound specifically designed to target MCF-7 breast cancer cells. It functions as a dual inhibitor, targeting both EGFR HER2 kinases and DHFR (dihydrofolate reductase). Its inhibitory activities are measured with IC50 values of 0.18 μM for EGFR, 0.146 μM for HER2, and 0.907 μM for DHFR [1].
EGFR HER2 DHFR-IN-1 is a highly selective and potent anticancer compound specifically targeting MCF-7 breast cancer cells. It acts as a multi-inhibitor, targeting the EGFR HER2 kinase and DHFR enzymes, with IC50 values of 0.153 μM, 0.108 μM, and 0.291 μM, respectively. Its mechanism of action involves cell cycle arrest at the G1 S phase and induction of apoptosis in cells [1].