File:Antigen presentation alt.svg

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English: Antigen presentation stimulates T cells to become either "cytotoxic" CD8+ cells or "helper" CD4+ cells. Cytotoxic cells directly attack other cells carrying certain foreign or abnormal molecules on their surfaces. Helper T cells, or Th cells, coordinate immune responses by communicating with other cells. In most cases, T cells only recognize an antigen if it is carried on the surface of a cell by one of the body’s own MHC, or major histocompatibility complex, molecules.
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The Immune System (pdf)
Author Fred the Oyster
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current01:00, 20 October 2014Thumbnail for version as of 01:00, 20 October 2014500 × 447 (9 KB)Fred the Oyster (talk | contribs){{Information |Description ={{en|1=Antigen presentation stimulates T cells to become either "cytotoxic" CD8+ cells or "helper" CD4+ cells. Cytotoxic cells directly attack other cells carrying certain foreign or abnormal molecules on their surfaces....

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