ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
Immunoglobulin G antibody molecule. Computer artwork of a model of the secondary structure of immunoglobulin G (IgG), attacking a cancer cell. The cancer cell is shown as a coloured scanning electron micrograph (SEM) cell. Clumps of cancerous cells form tumours in the body that can impair the normal functioning of an organ. Malignant cells invade and destroy surrounding tissues and migrate to distant parts of the body, where they seed secondary tumours.
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