β-Lapachone, a Naturally Occurring O-naphthoquinone, is a Topoisomerase I Inhibitor
β-Lapachone is an ortho-naphthoquinone and inhibits topoisomerase I. β-Lapachone is a classic quinone-containing antitumor NQO1-bioactivatable drug that directly kills NQO1-overexpressing cancer cells. NQO1 is an antioxidative enzyme that helps recover…