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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Frontiers Media S.A.
2021
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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) |
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autoimmunity diabetes interferon MDA5 TLR3 coxsackievirus Immunologic diseases. Allergy RC581-607 |
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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 |
work_keys_str_mv |
AT pamelajlincez changesinmda5andtlr3sensingofthesamediabetogenicvirusresultindifferentautoimmunediseaseoutcomes AT irynashanina changesinmda5andtlr3sensingofthesamediabetogenicvirusresultindifferentautoimmunediseaseoutcomes AT marcshorwitz changesinmda5andtlr3sensingofthesamediabetogenicvirusresultindifferentautoimmunediseaseoutcomes |
_version_ |
1718444476756656128 |