Scanning Electron Micrograph Photograph - White Blood Cell Antigen Presentation #1 by Steve Gschmeissner

White Blood Cell Antigen Presentation #1 is a photograph by Steve Gschmeissner which was uploaded on December 18th, 2014.

White Blood Cell Antigen Presentation #1

White blood cell antigen presentation. Coloured scanning electron micrograph (SEM) showing the interaction between a macrophage (yellow) and a T... more

by Steve Gschmeissner

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Title

White Blood Cell Antigen Presentation #1

Artist

Steve Gschmeissner

Medium

Photograph

Description

White blood cell antigen presentation. Coloured scanning electron micrograph (SEM) showing the interaction between a macrophage (yellow) and a T helper lymphocyte (Th cell, green), two components of the body's immune system. Both are types of white blood cell. Macrophages are antigen-presenting cells (APCs). They present antigens (fragments on the surface of pathogens or foreign objects) to T lymphocytes, activating them. Each T lymphocyte recognises and binds to a specific antigen. Binding of the Th cell to the antigen presented by the macrophage activates the Th cell. This leads to its proliferation and the activation of other immune cells that eliminate the antigen. Magnification x8000 when printed 10cm wide.

Uploaded

December 18th, 2014