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an agent that causes immunomodulation.
biologic response modifier
agent that modifies host responses to neoplasms by enhancing immune systems or reconstituting impaired immune mechanisms.
immunomodulator/im·mu·no·mod·u·lat·or/ (-mod´u-la´ter) an agent that augments or diminishes immune responses.
Etymology: L, immunis + modulus, little measure
a substance that alters the immune response by augmenting or reducing the ability of the immune system to produce antibodies or sensitized cells that recognize and react with the antigen that initiated their production. Immunomodulators include corticosteroids, cytotoxic agents, thymosin, and immunoglobulins. Some immunomodulators are naturally present in the body, and certain of these are available in pharmacological preparations. immunomodulation, n.