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Related Experiment Video

Updated: May 26, 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

Immunomodulatory functions of type I interferons.

José M González-Navajas¹, Jongdae Lee, Michael David

¹Division of Rheumatology, Allergy and Immunology, Department of Medicine, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093-0663, USA. jog001@ucsd.edu

Nature Reviews. Immunology

|January 7, 2012

Summary

Type I interferons (IFNs) are crucial for antiviral immunity but also regulate bacterial infections and immune homeostasis. This review highlights their underappreciated immunomodulatory roles in various health and disease states.

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Area of Science:

Immunology
Virology
Microbiology

Background:

Type I interferons (IFNs), including interferon-α (IFNα) and interferon-β (IFNβ), are key cytokines in antiviral immune responses.
Their role extends beyond viral infections, as they are also induced by bacterial stimuli, suggesting broader functions in host defense.

Purpose of the Study:

To review the underappreciated immunomodulatory functions of type I IFNs in both health and disease.
To explore the diverse roles of type I IFNs in regulating immune responses and maintaining homeostasis.

Main Methods:

This is a review article, synthesizing existing research.
Discussion of literature on type I IFN functions in innate and adaptive immunity.
Analysis of type I IFN involvement in bacterial infections, inflammasome activation, and intestinal homeostasis.

Main Results:

Type I IFNs modulate innate and adaptive immune responses.
They play a significant role in host defense against bacterial ligands and infections.
Type I IFNs are implicated in inflammasome activation, intestinal homeostasis, and the pathogenesis of inflammatory and autoimmune diseases.

Conclusions:

Type I IFNs possess broader physiological roles in host defense and homeostasis than previously recognized.
Understanding these immunomodulatory functions is critical for addressing various inflammatory and autoimmune conditions.