Wednesday, October 20, 2004


Cytokines are regulatory proteins that are released by cells of the immune system. These act as intercellular mediators in the generation of an immune response. They can have stimulating or suppressing effects on lymphocyte cells and immune responses.

Well-known examples include the interleukins, interferons and tumor necrosis factors. Cytokine production can be detected using certain laboratory techniques that have been discussed previously.