Cytokines are key regulators of inflammation, playing critical roles in both acute and chronic inflammatory processes. This review discusses the roles of various cytokines in these two types of inflammation. In acute inflammation, cytokines such as IL-1, TNF-α, IL-6, IL-11, IL-8, and chemokines are involved in the early stages of inflammation, including increased blood flow, vascular permeability, and recruitment of inflammatory cells. These cytokines also contribute to fever, leukocytosis, and the production of acute phase proteins. In chronic inflammation, cytokines such as IL-4, IL-5, IL-6, IL-7, IL-9, IL-10, IL-13, and TGF-β are involved in the development of humoral immune responses, while cytokines like IL-1, IL-2, IL-3, IL-4, IL-7, IL-9, IL-10, IL-12, IFNs, and TNF-α are involved in cellular immune responses. Some cytokines, such as IL-1, are involved in both acute and chronic inflammation. The review also discusses the cell-surface receptors that mediate the inflammatory effects of these cytokines. Cytokines are involved in complex networks of interactions, and their functions can overlap. Understanding the pathways regulated by cytokines can lead to the development of agents for improved modulation of the inflammatory response in the treatment of autoimmune, infectious, and neoplastic diseases.Cytokines are key regulators of inflammation, playing critical roles in both acute and chronic inflammatory processes. This review discusses the roles of various cytokines in these two types of inflammation. In acute inflammation, cytokines such as IL-1, TNF-α, IL-6, IL-11, IL-8, and chemokines are involved in the early stages of inflammation, including increased blood flow, vascular permeability, and recruitment of inflammatory cells. These cytokines also contribute to fever, leukocytosis, and the production of acute phase proteins. In chronic inflammation, cytokines such as IL-4, IL-5, IL-6, IL-7, IL-9, IL-10, IL-13, and TGF-β are involved in the development of humoral immune responses, while cytokines like IL-1, IL-2, IL-3, IL-4, IL-7, IL-9, IL-10, IL-12, IFNs, and TNF-α are involved in cellular immune responses. Some cytokines, such as IL-1, are involved in both acute and chronic inflammation. The review also discusses the cell-surface receptors that mediate the inflammatory effects of these cytokines. Cytokines are involved in complex networks of interactions, and their functions can overlap. Understanding the pathways regulated by cytokines can lead to the development of agents for improved modulation of the inflammatory response in the treatment of autoimmune, infectious, and neoplastic diseases.