Cytokine


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  • Produced by immune cells (T cells, B cells, macrophages, dendritic cells, NK cells) and non-immune cells (endothelial cells, fibroblasts, epithelial cells, neurons)

  • Function: Regulate cell activation, differentiation, proliferation, migration, and survival

  • Mode of action: Bind to specific cytokine receptors, triggering intracellular signaling cascades

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