Breast Cancer Cell in Low Oxygen (IMAGE) Johns Hopkins Medicine Caption In low oxygen conditions, breast cancer cells form structures that facilitate movement, such as filaments that allow the cell to contract (green) and cellular 'hands' that grab surfaces to pull the cell along (red). Credit Daniele Gilkes 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.