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Inhibitors of Viral Protein Synthesis

Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
Encephalitis ll: Pathophysiology01:26

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Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
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Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
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Related Experiment Video

Updated: May 12, 2026

High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes
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Published on: March 24, 2015

Type I interferon in neurological disease-the devil from within.

Markus J Hofer1, Iain L Campbell

  • 1School of Molecular Bioscience and the Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia. markus.hofer@sydney.edu.au

Cytokine & Growth Factor Reviews
|April 4, 2013
PubMed
Summary

Type I interferons (IFN-I) are crucial for host defense but chronic CNS production causes neuroinflammation, like in Aicardi-Goutières syndrome (AGS). Targeting IFN-I may treat neurological "interferonopathies".

Keywords:
Aicardi–Goutières syndromeAnimal modelsInflammatory encephalopathyNeurodegenerationType I interferon

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Last Updated: May 12, 2026

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Development and Validation of an Ultrasensitive Single Molecule Array Digital Enzyme-linked Immunosorbent Assay for Human Interferon-α

Published on: June 14, 2018

Area of Science:

  • Neuroimmunology
  • Infectious Disease

Background:

  • Type I interferons (IFN-I) are vital for host defense, bridging innate and adaptive immunity.
  • Chronic or inappropriate central nervous system (CNS) production of IFN-I is linked to severe neuroinflammatory disorders.
  • Aicardi-Goutières syndrome (AGS) is a prime example, characterized by elevated CNS IFN-α production.

Purpose of the Study:

  • To explore the pathogenic role of IFN-I in neuroinflammatory conditions.
  • To investigate the potential of targeting IFN-I for therapeutic interventions in neurological disorders.

Main Methods:

  • Review of molecular genetic studies identifying AGS-causing mutations.
  • Analysis of experimental studies, including a transgenic mouse model with CNS-restricted IFN-α production.

Main Results:

  • Mutations causing AGS likely result from dysregulated nucleic acid metabolism, activating innate immunity and increasing intrathecal IFN-α.
  • A transgenic mouse model mimicking AGS neuropathology highlights IFN-I's intrinsic CNS damaging potential.
  • IFN-I acts as a key mediator of molecular and cellular damage within the CNS.

Conclusions:

  • IFN-I plays a dual role: beneficial in host defense but detrimental when chronically produced in the CNS.
  • Targeting IFN-I presents a promising therapeutic strategy for AGS and other neurological "interferonopathies".
  • Further research into IFN-I's role in neuroinflammation is warranted.