Auto-Immune Diseases
The immune system may stop recognising the body's own antigens and start attacking body tissues.
This leads to autoimmune diseases.
This could be because the immune system responds abnormally t a midl pathogen or normal body microorganisms or becuase T reg cells do not adequately suppress or regulate the immune response.
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Key terms in this lesson
- pathogen
- A microorganism that causes disease.
- antigen
- A molecule, usually a protein, on the surface of a cell or pathogen that triggers an immune response.
More in Communicable Diseases
- How Antibodies Work
- Lymphocytes
- Cell-Mediated Immunity
- Humoral Immunity
- Natural Immunity
- Artificial Passive Immunity
- Artificial Active Immunity
- Vaccines
All 40 lessons in Communicable Diseases · All OCR AS-level Biology topics