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). | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Andrade, Ramon / 3dciencia |
Taille de l’image : | 3619 px × 4830 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |