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<p>The IL-1 family comprises key pro-inflammatory cytokines that are central to host defence against noxious stimuli, as evidenced by their prominent expression at barrier tissues and their shared myeloid differentiation primary response 88 (MyD88)-dependent signalling pathways with Toll-like receptors. The generation of biologically active IL-1 agonists is tightly controlled by proteolytic processing (including inflammasome-dependent and independent mechanisms), which converts inactive precursors into mature cytokines or substantially amplifies the activity of selected family members. IL-1 signalling is further regulated at multiple levels by endogenous inhibitors, decoy receptors and receptor antagonists, ensuring a finely tuned balance between pro-inflammatory and anti-inflammatory responses; this balance is essential for effective antimicrobial immunity while limiting immunopathology. Converging evidence from human studies and experimental disease models demonstrates that disruption of this regulatory balance underlies a broad spectrum of inflammatory diseases. Numerous therapies that target IL-1 cytokines have been approved for the treatment of inflammatory diseases or are in development, and the clinical efficacy of these therapies provides compelling validation of their pathogenic role in numerous disease contexts.</p>

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Advances in targeting IL-1 family cytokines for the treatment of inflammatory diseases

  • 期刊论文

  • 发表日期：

    2026年7月9日

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  • Cem Gabay,
  • Charlotte Girard-Guyonvarc’h,
  • Laurie Vaillant,
  • Matthias Jarlborg

摘要

The IL-1 family comprises key pro-inflammatory cytokines that are central to host defence against noxious stimuli, as evidenced by their prominent expression at barrier tissues and their shared myeloid differentiation primary response 88 (MyD88)-dependent signalling pathways with Toll-like receptors. The generation of biologically active IL-1 agonists is tightly controlled by proteolytic processing (including inflammasome-dependent and independent mechanisms), which converts inactive precursors into mature cytokines or substantially amplifies the activity of selected family members. IL-1 signalling is further regulated at multiple levels by endogenous inhibitors, decoy receptors and receptor antagonists, ensuring a finely tuned balance between pro-inflammatory and anti-inflammatory responses; this balance is essential for effective antimicrobial immunity while limiting immunopathology. Converging evidence from human studies and experimental disease models demonstrates that disruption of this regulatory balance underlies a broad spectrum of inflammatory diseases. Numerous therapies that target IL-1 cytokines have been approved for the treatment of inflammatory diseases or are in development, and the clinical efficacy of these therapies provides compelling validation of their pathogenic role in numerous disease contexts.