Cell recognition

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  • Created by: Eema003
  • Created on: 07-05-16 15:42
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  • Cell recognition
    • In fetus lymphocytes are constantly colliding with other cells
      • Low chance of of infection due to protection from placenta
        • Therefore almost exclusively collide with body cells
          • Some lymphocytes  have receptors which fit those on self material
            • These lymphocytes die
              • The only remaining lymphocytes are those that fit non-self material
    • In adults lymphocytes are produced in the bone marrow, initially only encounter self-antigens.
      • Any lymphocytes that show an immune response to self-antigens undergo apoptosis

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