BECN1 and hepatocellular carcinoma: Oroxylin A (an O-methylated flavone) caused autophagic cell death through Beclin-1 expression in human HCC HepG2 cells, as well as the formation of water-soluble LC3-I after 12 h to LC3-II, then autophagosome-lysosome fusion and lysosome degradation after 24 h.