Circadian Rhythm Disruption Tips the Cell-cycle Balance Toward Tumor Growth (IMAGE) PLOS Caption Circadian dysregulation of the cell cycle increases tumor growth and time-dependent anti-cancer activity of PD-0332991. Credit Amita Sehgal Usage Restrictions CC-BY: Redistribution allowed with credit. 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.