CDK6 is Crucial in Leukemia Formation (IMAGE) University of Veterinary Medicine -- Vienna Caption CDK6 is needed for leukemic stem cell activation (left). When CDK6 is absent, the LSC remains in a quiescent state and leukemia formation is prohibited (right). Credit Angelika Berger / Vetmeduni Vienna Usage Restrictions This illustration may only be used in the context of this press 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.