Allergic diseases develop when a person's immune system becomes sensitized to a normally harmless antigen. Type I hypersensitivity is a category of allergic reaction in which CD4+ Th2 cells that interact with these antigens stimulate B-cells to produce
Immunoglobulin E (IgE) antibodies. These antibodies will then mark the specific antigen for destruction by other immune cells.+ Once the individual has been initially exposed and developed the specific antibodies, a subsequent exposure to the allergen will result in an allergic reaction. For more information, click here.
|Mechanisms of Allergic Response|