SEM of killer cell attacking cancer cell

SEM of killer cell attacking cancer cell

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Caption: Cancer attacked by killer cell. Scanning Electron Micrograph (SEM) of a human Natural Killer (NK) cell attacking a cancer cell. The NK cell is yellow with numerous long fluid- projections which are beginning to flow around the large pink cancer cell. Natural killer cells are a type of white blood cell known as T-lymphocytes. These have the ability to destroy virus-infected cells and tumour cells. On contact with the surface of a tumour cell, the NK cell recognizes certain proteins called antigens, which activate its cell- killing mechanism. The NK cell then binds to and destroys the cancer cell using toxic chemicals. Magnification: x3,850 at 6x6cm size.

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