Image 2 (IMAGE) Champalimaud Centre for the Unknown Caption A human bladder tumour (red) surrounded by zebrafish macrophages (green). Cell nuclei appear in blue Credit Mayra Martinez-López et al., Disease Models and Mechanisms 2024 Usage Restrictions Attribute credit. License Original 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.