Cancer Cells (IMAGE) Rockefeller University Caption Some cancer cells cannot produce cholesterol, and instead build up an excess of squalene (pink)--a molecule that may help these dangerous cells thrive. Credit Laboratory of Metabolic Regulation and Genetics/The Rockefeller University Usage Restrictions Image may only be used to describe the research in the accompanying release. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.