Immune system and bacteria, artwork

Immune system and bacteria, artwork


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Immune response to bacteria, artwork. Invading bacteria (yellow) are phagocytosed (engulfed) by macrophages, a type of white blood cell. Fragments of protein (antigen) from the bacteria are displayed on the macrophage's surface. The antigen is recognised by helper T lymphocytes, which secrete chemicals such as cytokines (pink dots) to activate other immune cells, including B lymphocytes. The B lymphocytes differentiate into plasma cells, which produce large numbers of antibodies (orange) that recognise the antigen. The antibodies either neutralise the pathogen or flag it for destruction by other cells.

Release details

Model release not required. Property release not required.

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