F.WYDA / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY F.WYDA / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY
Cancer cells eaten by macrophage. Coloured Trans- mission Electron Micrograph (TEM) showing a white blood cell which has phagocytosed two cancer cells. The cancer cells are at centre left and right; nuclear material is yellow. Surrounding the cancer cells is a white blood cell (macro- phage), with its nucleus at top right. This white blood cell has engulfed the cancer cells whole, and is in the process of digesting them. Macro- phages are scavenger cells of the immune system which play a protective role in the body. They migrate to sites of infection & attack pathogens. Magnification: x9,200 at 35mm size.
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