The Inactivation of Cancer Cell Growth (IMAGE) University of Veterinary Medicine -- Vienna Caption The left image shows aktivated STAT5. Cancer cells grow. In the right image, PAK is inhibited, STAT5 is therefore no longer active and cancer cells die. Credit Image: Angelika Berger / Vetmeduni Vienna 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.