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Autoimmune Diseases. More than 80 diseases occur as a result of the immune system attacking the body’s own organs, tissues, and cells. Some of the more common autoimmune diseases include type 1 diabetes, rheumatoid arthritis, systemic lupus erythematosus, and inflammatory bowel disease.
There are many different autoimmune diseases. Some involve only one type of tissue. For example, in a disease called vasculitis, your immune system attacks your blood vessels. Other autoimmune diseases involve many different parts of the body. Lupus, for example, can damage the skin, heart, lungs, and more.
Home > Definition of Autoimmunity. Autoimmunity is the presence of antibodies (which are made by B lymphocytes) and T lymphocytes directed against normal components of a person ( autoantigens ). These components are called autoantigens or self-antigens and typically consist of proteins (or proteins complexed to nucleic acids).
