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Updated: Jul 27, 2025

Experimental Infection with Listeria monocytogenes as a Model for Studying Host Interferon-γ Responses
Published on: November 16, 2016
Roles and Effects of Interferon Lambda Signaling in the Context of Bacterial Infections
Da'Kuawn Johnson1, Nicholas Carbonetti1
1Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, Maryland, USA.
Abstract:
Type III interferon, or interferon lambda (IFNλ), was discovered 20 years ago and has been studied primarily for its role in combatting viral infections. However, it is also induced in response to certain bacterial infections but its roles and effects in this context are relatively poorly understood. In this mini review, we discuss the roles of IFNλ signaling in bacterial infections, highlighting its deleterious or protective effects for different infections. We also discuss a couple of recent studies showing that some bacteria possess defense mechanisms against the effects of IFNλ. We hope that this review will spur further investigation into the roles of IFNλ in the context of bacterial infections and will promote considerations of its therapeutic potential for these infections.
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