(-)-Epigallocatechin Gallate

(-)-Epigallocatechin Gallate is a tea flavonoid with potent antioxidant, antiinflammatory, and anticarcinogenic properties. (-)-Epigallocatechin Gallate is reported to inhibit EGFR signaling and thereby exert anticancer effects^[1]. (-)-Epigallocatechin Gallate (EGCG) is a glutamate dehydrogenase 1/2 (GDH1/2, GLUD1/2) inhibitor. Epigallocatechin-3-gallate induces oxidative phosphorylation (OXPHOS) by activating cytochrome c oxidase. IC50 & Target: EGFR, HER2 and HER3^[1] GDH1/2, GLUD1/2^[2] In Vitro: (-)-Epigallocatechin Gallate (EGCG) inhibits activation EGFR, HER2 and HER3 in the SW837 human colon cancer cell line. (-)-Epigallocatechin Gallate (10 μM) also inhibits cell growth, suppresses activation of EGFR, HER2, and HER3, and causes decrease in the levels of COX-2 and Bcl-xL proteins, and apoptosis after treatment for 96 h^[1]. (-)-Epigallocatechin Gallate (0-35 μg/mL) inhibits the proliferation of colorectal cancer cells. (-)-Epigallocatechin Gallate (35 μg/mL) induces apoptosis of colorectal cancer cells^[3]. (-)-Epigallocatechin Gallate (EGCG; 50, 75 and 100 μM) dose-dependently inhibits the growth of HepG2 cells, and induces apoptosis in HepG2 cells^[4]. In Vivo: (-)-Epigallocatechin Gallate (5, 10, and 20 mg/kg, p.o.) inhibits the growth of orthotopic colorectal cancer cells in mice^[3].