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<p>Interleukin-33 (IL-33), an alarmin cytokine of the IL-1 family, has emerged as a pivotal regulator of neuroimmune interactions in the central nervous system (CNS). Acting through its receptor ST2, IL-33 orchestrates diverse immune responses by modulating microglial polarization, shaping T cell differentiation, activating type 2 innate lymphoid cells (ILC2s), and engaging mast cell-macrophage regulatory circuits. Across distinct neurological disorders, including epilepsy, stroke, traumatic brain injury (TBI), Parkinson’s disease (PD), Alzheimer’s disease (AD), multiple sclerosis (MS), cerebral malaria, and glioma, IL-33 exerts both protective and pathogenic effects in a context-dependent manner. In epilepsy, IL-33 modulates neuroinflammation and neuronal excitability; in stroke, it attenuates acute neurovascular injury while influencing post-stroke remodeling; in AD, it enhances amyloid-β clearance and mitigates chronic neuroinflammation; in MS, it regulates autoimmune demyelination via T cell and innate immune pathways. These shared yet disease-specific mechanisms underscore IL-33’s central role in neuroimmune homeostasis and its potential as a precision therapeutic target. Future research integrating multi-disease models, temporal disease staging, and single-cell multi-omics will be essential to define the conditions under which IL-33 modulation yields maximal therapeutic benefit.</p> Graphical Abstract <p></p>

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Targeting IL-33 in Precision Neuroimmunology: Cellular Mechanisms and Therapeutic Strategies for CNS Disorders

  • 期刊论文

  • 发表日期：

    2026年7月10日

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  • Lili Li,
  • Shuting Wang,
  • Lian Duan,
  • Luyu Zhang,
  • Hongmu Yan,
  • Yue Zhu,
  • Luyang Tao,
  • Yuan Gao

摘要

Interleukin-33 (IL-33), an alarmin cytokine of the IL-1 family, has emerged as a pivotal regulator of neuroimmune interactions in the central nervous system (CNS). Acting through its receptor ST2, IL-33 orchestrates diverse immune responses by modulating microglial polarization, shaping T cell differentiation, activating type 2 innate lymphoid cells (ILC2s), and engaging mast cell-macrophage regulatory circuits. Across distinct neurological disorders, including epilepsy, stroke, traumatic brain injury (TBI), Parkinson’s disease (PD), Alzheimer’s disease (AD), multiple sclerosis (MS), cerebral malaria, and glioma, IL-33 exerts both protective and pathogenic effects in a context-dependent manner. In epilepsy, IL-33 modulates neuroinflammation and neuronal excitability; in stroke, it attenuates acute neurovascular injury while influencing post-stroke remodeling; in AD, it enhances amyloid-β clearance and mitigates chronic neuroinflammation; in MS, it regulates autoimmune demyelination via T cell and innate immune pathways. These shared yet disease-specific mechanisms underscore IL-33’s central role in neuroimmune homeostasis and its potential as a precision therapeutic target. Future research integrating multi-disease models, temporal disease staging, and single-cell multi-omics will be essential to define the conditions under which IL-33 modulation yields maximal therapeutic benefit.

Graphical Abstract