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Type I interferons

E De Maeyer1, J De Maeyer-Guignard

  • 1Institut Curie, Université Paris-Sud, Orsay, France.

International Reviews of Immunology
|January 23, 1999
PubMed
Summary

Type I interferons (IFNs) are crucial first responders to viral infections, produced by most cells. These versatile proteins offer direct antiviral effects and modulate immune responses, leading to clinical applications in various diseases.

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Area of Science:

  • Immunology
  • Virology
  • Molecular Biology

Background:

  • Type I interferons (IFNs) are a family of related proteins originating from a common ancestral gene.
  • Unlike specialized cytokines, Type I IFNs can be produced by virtually all cells in response to viral infections, typically via double-stranded RNA.
  • They represent the primary defense mechanism against viral pathogens.

Purpose of the Study:

  • To summarize the fundamental characteristics and functions of Type I interferons.
  • To highlight their broad biological activities beyond direct antiviral effects.
  • To underscore their therapeutic relevance in clinical settings.

Main Methods:

  • Review of existing literature on Type I interferon biology.
  • Analysis of the molecular mechanisms underlying Type I IFN production and action.
  • Examination of clinical applications of recombinant interferons.

Main Results:

  • Type I IFNs induce a significant number of proteins (at least thirty characterized) to combat viral infections.
  • Beyond antiviral activity, they stimulate other cytokines and immune effector cells.
  • Recombinant Type I IFNs are clinically utilized for treating cancers, viral hepatitis, and multiple sclerosis.

Conclusions:

  • Type I interferons are essential innate immune mediators with diverse functions.
  • Their pleiotropic effects support their established role in treating significant human diseases.
  • Further research into Type I IFN pathways may reveal additional therapeutic strategies.

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