T helper type 1 cytokine (Th1 cytokine)

Th1-type cytokines are a group of pro-inflammatory cytokines predominantly produced by T helper type 1 (Th1) cells, a subset of CD4+ T lymphocytes central to the immune response against intracellular pathogens such as viruses and certain bacteria[1][2][3][4]. The principal Th1 cytokines are interferon-gamma (IFN-γ), tumor necrosis factor-alpha (TNF-α), and interleukin-2 (IL-2)[1][2][3]. These cytokines activate macrophages, enhance antigen presentation, and promote cytotoxic T lymphocyte responses, collectively driving cell-mediated immunity[1][3][4]. While Th1 activity is vital for pathogen clearance, excessive or dysregulated Th1 cytokine production is implicated in the pathogenesis of several autoimmune and chronic inflammatory diseases, including type 1 diabetes mellitus, multiple sclerosis, rheumatoid arthritis, Crohn’s disease, and others[1][3][4]. Th1-type cytokines are not a single molecular target or receptor but rather a functionally related group of signaling proteins involved in immune regulation. Note: This entry is marked as is_incorrect: true, because "Th1-type cytokines" is *not* a specific molecule or receptor but rather a functional category comprising several cytokines (e.g., IFN-γ, TNF-α, IL-2). For structured information aligned to individual drug targets, it is necessary to specify the particular cytokine (e.g., Interferon-gamma) rather than the generic “Th1-type cytokines” grouping[1][2][3].

Other names

Th1-type cytokinesT helper 1 cytokinetype 1 T helper cytokineTh1 cytokinestype 1 cytokinescell-mediated immunity cytokines