Pancreatic Cancer Cells (IMAGE) Columbia University Irving Medical Center Caption In preclinical testing, an experimental drug for pancreatic cancer blocks the formation of microtubules in the cell, hindering growth. Microtubules are shown in black, and DNA is in blue. The pancreatic cancer cluster on the right was treated with PTC596. Credit PTC Therapeutics Usage Restrictions None 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.