CNS disease associated with enhanced type I interferon signalling.

Yanick J Crow

The Lancet. Neurology 2024 Nov

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The ability to mount an interferon-mediated innate immune response is essential in protection against neurotropic viruses, but antiviral type I interferons also have neurotoxic potential. The production of type I interferons can be triggered by self-derived nucleic acids, and the brain can be susceptible to inappropriate upregulation of type I interferon signalling. Homoeostatic dysregulation of type I interferons has been implicated in rare inborn errors of immunity (referred to as type I interferonopathies) and more common neurodegenerative disorders (eg, Parkinson's disease, Alzheimer's disease, and amyotrophic lateral sclerosis). Recent developments include new insights into the pathogenesis of these disorders that involve dysregulated type I interferon signalling, as well as advances in their diagnosis and management. The role of type I interferons in brain cellular health suggests the future therapeutic potential of approaches that target these interferons and their signalling. Copyright © 2024 Elsevier Ltd. All rights reserved.