Cytokines, including interleukins, interferons, and chemokines, are secreted signaling molecules that mediate and regulate immunity, inflammation and some developmental processes during embryogenesis. They also play an important role in angiogenesis and cancer. Cytokines can have pleiotropic, overlapping, and sometimes contradictory functions. This is dependent upon their concentration, the cell type they are acting on, and the presence of other cytokines and mediators. Enzo Life Sciences offers a wide selection of cytokine antibodies, proteins, and kits for innate and adaptive immune research including our wide selection of high-specificity human and mouse cytokine ELISA kits.