Cytokinesis can fail during normal post-natal liver development, leading to polyploid hepatocytes. We investigated whether inhibiting cytokinesis in the liver; slows tumor growth without compromising the health of normal hepatocytes. We inhibited cytokinesis in cancer cells by knocking down anillin actin binding protein (ANLN), a cytoskeletal scaffolding protein that regulates cytokinesis and might promote tumorigenesis, in mice with liver disease.