Glossary: I

I
IFN: Interferon.
IL-2: A lymphokine that is released by helper T cells in response to an antigen and interleukin-1 and stimulates the proliferation of helper T cells. It has been used experimentally to treat cancer.
Immunogenic: Capable of inducing an immune response; antigenic.
Immunoregulatory: Regulatory mechanisms that act at the recognition, activation, and effector phases of an immune response,
Immunosuppression: Suppression of the immune response, as by drugs or radiation, in order to prevent the rejection of grafts or transplants or to control autoimmune diseases. Also called immunodepression.
Immunotherapy: The treatment of cancer by improving the ability of a tumor-bearing individual (the host) to reject the tumor immunologically.
Indurated: Hardened.
Intradermal: Within or between the layers of the skin.
Intralesional: Occurring in or introduced directly into a localized lesion.