U.S scientists have found a substance derived from the bark of the South American lapacho tree that can kill certain types of cancer cells. The compound called beta-lapochone has shown promising anti-cancer properties and is currently being used in a clinical trial to examine its effectiveness against pancreatic cancer in humans. Beta-lapachone interacts with an enzyme called NQO1. which is present at high levels in non-small cell lung cancer and other solid tumours.
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