Immune system activation via cytokine secretion

Immune system activation via cytokine secretion refers to the process by which immune cells such as macrophages, dendritic cells, neutrophils, mast cells, and lymphocytes secrete cytokines—small soluble proteins that act as intercellular messengers—to coordinate and amplify the body's defenses against infection, injury, and disease. Cytokines bind to specific receptors on immune cells, triggering intracellular signaling cascades that regulate inflammation, cell growth, differentiation, survival, and immune modulation. This process is central to both innate and adaptive immunity; dysregulation can lead to pathological conditions such as autoimmune disorders, chronic inflammation, allergies, and increased susceptibility to infection. Because "immune system activation via cytokine secretion" is a process and not a single molecule, it cannot be targeted directly; therapeutic agents instead target specific cytokines, their receptors, or intracellular signaling pathways.

Other names

cytokine secretionimmune activation by cytokinescytokine-mediated immune response

For drugs acting on this process in general: immunosuppression (by inhibiting cytokine signaling), immune stimulation (by enhancing cytokine action). Mechanisms are specific to cytokine blockers or cytokine mimetics (e.g., anti-TNF, anti-IL-6, recombinant interferons).