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Updated: Jun 28, 2026
08:32
Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production
Published on: March 2, 2014
Hematopoietic cell-derived interferon controls viral replication and virus-induced disease
Philipp A Lang1, Luisa Cervantes-Barragan, Admar Verschoor
1Institute of Experimental Immunology, University Hospital of Zurich, Zurich, Switzerland. philipp.lang@gmx.net
Blood
|October 31, 2008
Summary
Hematopoietic cells are essential for producing Type I interferon (IFN-I), a key antiviral defense. This interferon limits viral spread, prevents cell damage, and controls virus-induced diseases like diabetes.
Area of Science:
- Immunology
- Virology
- Cell Biology
Background:
- Type I interferon (IFN-I) is critical for controlling viral infections.
- Both hematopoietic and nonhematopoietic cells produce IFN-I, but their relative contributions are unclear.
Purpose of the Study:
- To investigate the role of bone marrow-derived (hematopoietic) cells in IFN-I production and antiviral responses.
- To determine the contribution of hematopoietic cell-derived IFN-I in controlling viral infections and associated immunopathology.
Main Methods:
- Utilized irf7(-/-) and wild-type bone marrow chimeras in mouse models.
- Analyzed viral replication, spread, cell damage, and disease induction following viral challenge.
Main Results:
- Hematopoietic cells were essential for IFN-I production during systemic viral infection.
- Hematopoietic cell-derived IFN-I inhibited viral spread and limited cell damage.
- In a viral diabetes model, hematopoietic IFN-I was crucial for CD8(+) T cell cytotoxicity and disease induction.
Conclusions:
- Hematopoietic cells are the primary source of IFN-I during systemic viral infections.
- Hematopoietic cell-derived IFN-I plays a vital role in controlling viral replication and mitigating viral-induced diseases.
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