Conceptual illustration of a natural killer (NK) cell (yellow) attacking a target cell (blue). NK cells are a type of white blood cell and a component of the immune system. They recognise certain proteins, or antigens, on virus-infected or tumour cells and destroy them by secreting cytokines, porins, free radicals and other substances (pink). | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Andrade, Ramon / 3dciencia |
Bildgröße: | 3619 px × 4830 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |