Journal article
Frontline Science: CD40 signaling restricts RNA virus replication in Mϕs, leading to rapid innate immune control of acute virus infection
Journal of leukocyte biology, Vol.109(2), pp.309-325
02/2021
DOI: 10.1002/JLB.4HI0420-285RR
PMCID: PMC7774454
PMID: 32441445
Abstract
Many acute viral infections target tissue Mϕs, yet the mechanisms of Mϕ-mediated control of viruses are poorly understood. Here, we report that CD40 expressed by peritoneal Mϕs restricts early infection of a broad range of RNA viruses. Loss of CD40 expression enhanced virus replication as early as 12-24 h of infection and, conversely, stimulation of CD40 signaling with an agonistic Ab blocked infection. With peritoneal cell populations infected with the filovirus, wild-type (WT) Ebola virus (EBOV), or a BSL2 model virus, recombinant vesicular stomatitis virus encoding Ebola virus glycoprotein (rVSV/EBOV GP), we examined the mechanism conferring protection. Here, we demonstrate that restricted virus replication in Mϕs required CD154/CD40 interactions that stimulated IL-12 production through TRAF6-dependent signaling. In turn, IL-12 production resulted in IFN-γ production, which induced proinflammatory polarization of Mϕs, protecting the cells from infection. These CD40-dependent events protected mice against virus challenge. CD40
mice were exquisitely sensitive to intraperitoneal challenge with a dose of rVSV/EBOV GP that was sublethal to CD40
mice, exhibiting viremia within 12 h of infection and rapidly succumbing to infection. This study identifies a previously unappreciated role for Mϕ-intrinsic CD40 signaling in controlling acute virus infection.
Details
- Title: Subtitle
- Frontline Science: CD40 signaling restricts RNA virus replication in Mϕs, leading to rapid innate immune control of acute virus infection
- Creators
- Kai J Rogers - University of IowaOlena Shtanko - Texas Biomedical Research InstituteLaura L Stunz - University of IowaLaura N Mallinger - University of IowaTina Arkee - University of IowaMegan E Schmidt - University of IowaDana Bohan - University of IowaBethany Brunton - University of IowaJudith M White - University of VirginiaSteve M Varga - Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, Iowa, USANoah S Butler - University of IowaGail A Bishop - University of IowaWendy Maury - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Journal of leukocyte biology, Vol.109(2), pp.309-325
- DOI
- 10.1002/JLB.4HI0420-285RR
- PMID
- 32441445
- PMCID
- PMC7774454
- NLM abbreviation
- J Leukoc Biol
- ISSN
- 0741-5400
- eISSN
- 1938-3673
- Grant note
- T32 GM067795 / NIGMS NIH HHS P30 ES005605 / NIEHS NIH HHS R21 AI139902 / NIAID NIH HHS R21 AI144215 / NIAID NIH HHS R01 AI124093 / NIAID NIH HHS RO1AI124093 / NIH HHS R01 AI127481 / NIAID NIH HHS T32 GM007337 / NIGMS NIH HHS R01AI125446 / NIH HHS University of Iowa Department of Microbiology and Immunology Developmental Grant R21 AI144215 / NIH HHS I01 BX001702 / BLRD VA T32GM007337 / NIH HHS P30 CA086862 / NCI NIH HHS R21 AI139902 / NIH HHS T32 AI007511 / NIAID NIH HHS R21 AI119163 / NIAID NIH HHS R01 AI134733 / NIAID NIH HHS AI114776 / NIH HHS I01 BX001702 / NIH HHS R01AI127481 / NIH HHS AI119163 / NIH HHS R01 AI114776 / NIAID NIH HHS R01 AI125446 / NIAID NIH HHS
- Language
- English
- Date published
- 02/2021
- Academic Unit
- Molecular Physiology and Biophysics; Graduate College Admin and Gen; Microbiology and Immunology; President; Pathology; Fraternal Order of Eagles Diabetes Research Center; Community and Behavioral Health
- Record Identifier
- 9984297432602771
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