Changes in MDA5 and TLR3 Sensing of the Same Diabetogenic Virus Result in Different Autoimmune Disease Outcomes

Seemingly redundant in function, melanoma differentiation-associated protein 5 (MDA5) and toll-like receptor- 3 (TLR3) both sense RNA viruses and induce type I interferon (IFN-I). Herein, we demonstrate that changes in sensing of the same virus by MDA5 and TLR3 can lead to distinct signatures of IFN...

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Autores principales: Pamela J. Lincez, Iryna Shanina, Marc S. Horwitz
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Publicado: Frontiers Media S.A. 2021
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spelling oai:doaj.org-article:782c50c9bc7b4bb7a0443c4be35780522021-11-05T06:46:02ZChanges in MDA5 and TLR3 Sensing of the Same Diabetogenic Virus Result in Different Autoimmune Disease Outcomes1664-322410.3389/fimmu.2021.751341https://doaj.org/article/782c50c9bc7b4bb7a0443c4be35780522021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fimmu.2021.751341/fullhttps://doaj.org/toc/1664-3224Seemingly redundant in function, melanoma differentiation-associated protein 5 (MDA5) and toll-like receptor- 3 (TLR3) both sense RNA viruses and induce type I interferon (IFN-I). Herein, we demonstrate that changes in sensing of the same virus by MDA5 and TLR3 can lead to distinct signatures of IFN-α and IFN-ß resulting in different disease outcomes. Specifically, infection with a diabetogenic islet β cell-tropic strain of coxsackievirus (CB4) results in diabetes protection under reduced MDA5 signaling conditions while reduced TLR3 function retains diabetes susceptibility. Regulating the induction of IFN-I at the site of virus infection creates a local site of interferonopathy leading to loss of T cell regulation and induction of autoimmune diabetes. We have not demonstrated another way to prevent T1D in the NOD mouse, rather we believe this work has provided compounding evidence for a specific control of IFN-I to drive a myriad of responses ranging from virus clearance to onset of autoimmune diabetes.Pamela J. LincezIryna ShaninaMarc S. HorwitzFrontiers Media S.A.articleautoimmunitydiabetesinterferonMDA5TLR3coxsackievirusImmunologic diseases. AllergyRC581-607ENFrontiers in Immunology, Vol 12 (2021)
institution DOAJ
collection DOAJ
language EN
topic autoimmunity
diabetes
interferon
MDA5
TLR3
coxsackievirus
Immunologic diseases. Allergy
RC581-607
spellingShingle autoimmunity
diabetes
interferon
MDA5
TLR3
coxsackievirus
Immunologic diseases. Allergy
RC581-607
Pamela J. Lincez
Iryna Shanina
Marc S. Horwitz
Changes in MDA5 and TLR3 Sensing of the Same Diabetogenic Virus Result in Different Autoimmune Disease Outcomes
description Seemingly redundant in function, melanoma differentiation-associated protein 5 (MDA5) and toll-like receptor- 3 (TLR3) both sense RNA viruses and induce type I interferon (IFN-I). Herein, we demonstrate that changes in sensing of the same virus by MDA5 and TLR3 can lead to distinct signatures of IFN-α and IFN-ß resulting in different disease outcomes. Specifically, infection with a diabetogenic islet β cell-tropic strain of coxsackievirus (CB4) results in diabetes protection under reduced MDA5 signaling conditions while reduced TLR3 function retains diabetes susceptibility. Regulating the induction of IFN-I at the site of virus infection creates a local site of interferonopathy leading to loss of T cell regulation and induction of autoimmune diabetes. We have not demonstrated another way to prevent T1D in the NOD mouse, rather we believe this work has provided compounding evidence for a specific control of IFN-I to drive a myriad of responses ranging from virus clearance to onset of autoimmune diabetes.
format article
author Pamela J. Lincez
Iryna Shanina
Marc S. Horwitz
author_facet Pamela J. Lincez
Iryna Shanina
Marc S. Horwitz
author_sort Pamela J. Lincez
title Changes in MDA5 and TLR3 Sensing of the Same Diabetogenic Virus Result in Different Autoimmune Disease Outcomes
title_short Changes in MDA5 and TLR3 Sensing of the Same Diabetogenic Virus Result in Different Autoimmune Disease Outcomes
title_full Changes in MDA5 and TLR3 Sensing of the Same Diabetogenic Virus Result in Different Autoimmune Disease Outcomes
title_fullStr Changes in MDA5 and TLR3 Sensing of the Same Diabetogenic Virus Result in Different Autoimmune Disease Outcomes
title_full_unstemmed Changes in MDA5 and TLR3 Sensing of the Same Diabetogenic Virus Result in Different Autoimmune Disease Outcomes
title_sort changes in mda5 and tlr3 sensing of the same diabetogenic virus result in different autoimmune disease outcomes
publisher Frontiers Media S.A.
publishDate 2021
url https://doaj.org/article/782c50c9bc7b4bb7a0443c4be3578052
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AT irynashanina changesinmda5andtlr3sensingofthesamediabetogenicvirusresultindifferentautoimmunediseaseoutcomes
AT marcshorwitz changesinmda5andtlr3sensingofthesamediabetogenicvirusresultindifferentautoimmunediseaseoutcomes
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