(IMAGE) Instituto Gulbenkian de Ciencia Caption Healthy cells (left image) display four centrioles, a normal number (in yellow). On the contrary, breast cancer cells (triple negative) have extra centrioles (here 16, right image). Credit Gaëlle Marteil, IGC. Usage Restrictions This image can only be used to illustrate this story, and credit to the author must be given. 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.