Mitochondrial extracellular vesicles, autoimmunity and myocarditis

For many decades viral infections have been suspected as ‘triggers’ of autoimmune disease, but mechanisms for how this could occur have been difficult to establish. Recent studies have shown that viral infections that are commonly associated with viral myocarditis and other autoimmune diseases such...

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Main Authors: Damian N. Di Florio, Danielle J. Beetler, Elizabeth J. McCabe, Jon Sin, Tsuneya Ikezu, DeLisa Fairweather
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-03-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2024.1374796/full
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author Damian N. Di Florio
Damian N. Di Florio
Damian N. Di Florio
Danielle J. Beetler
Danielle J. Beetler
Danielle J. Beetler
Elizabeth J. McCabe
Jon Sin
Tsuneya Ikezu
DeLisa Fairweather
DeLisa Fairweather
DeLisa Fairweather
DeLisa Fairweather
author_facet Damian N. Di Florio
Damian N. Di Florio
Damian N. Di Florio
Danielle J. Beetler
Danielle J. Beetler
Danielle J. Beetler
Elizabeth J. McCabe
Jon Sin
Tsuneya Ikezu
DeLisa Fairweather
DeLisa Fairweather
DeLisa Fairweather
DeLisa Fairweather
author_sort Damian N. Di Florio
collection DOAJ
description For many decades viral infections have been suspected as ‘triggers’ of autoimmune disease, but mechanisms for how this could occur have been difficult to establish. Recent studies have shown that viral infections that are commonly associated with viral myocarditis and other autoimmune diseases such as coxsackievirus B3 (CVB3) and SARS-CoV-2 target mitochondria and are released from cells in mitochondrial vesicles that are able to activate the innate immune response. Studies have shown that Toll-like receptor (TLR)4 and the inflammasome pathway are activated by mitochondrial components. Autoreactivity against cardiac myosin and heart-specific immune responses that occur after infection with viruses where the heart is not the primary site of infection (e.g., CVB3, SARS-CoV-2) may occur because the heart has the highest density of mitochondria in the body. Evidence exists for autoantibodies against mitochondrial antigens in patients with myocarditis and dilated cardiomyopathy. Defects in tolerance mechanisms like autoimmune regulator gene (AIRE) may further increase the likelihood of autoreactivity against mitochondrial antigens leading to autoimmune disease. The focus of this review is to summarize current literature regarding the role of viral infection in the production of extracellular vesicles containing mitochondria and virus and the development of myocarditis.
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spelling doaj.art-878c5695536546448e70b500f2b995f72024-03-14T04:24:33ZengFrontiers Media S.A.Frontiers in Immunology1664-32242024-03-011510.3389/fimmu.2024.13747961374796Mitochondrial extracellular vesicles, autoimmunity and myocarditisDamian N. Di Florio0Damian N. Di Florio1Damian N. Di Florio2Danielle J. Beetler3Danielle J. Beetler4Danielle J. Beetler5Elizabeth J. McCabe6Jon Sin7Tsuneya Ikezu8DeLisa Fairweather9DeLisa Fairweather10DeLisa Fairweather11DeLisa Fairweather12Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL, United StatesCenter for Clinical and Translational Science, Mayo Clinic, Rochester, MN, United StatesMayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, MN, United StatesDepartment of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL, United StatesCenter for Clinical and Translational Science, Mayo Clinic, Rochester, MN, United StatesMayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic, Rochester, MN, United StatesDepartment of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL, United StatesDepartment of Biological Sciences, University of Alabama, Tuscaloosa, AL, United StatesDepartment of Neuroscience, Mayo Clinic, Jacksonville, FL, United StatesDepartment of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL, United StatesCenter for Clinical and Translational Science, Mayo Clinic, Rochester, MN, United StatesDepartment of Immunology, Mayo Clinic, Jacksonville, FL, United StatesDepartment of Medicine, Mayo Clinic, Jacksonville, FL, United StatesFor many decades viral infections have been suspected as ‘triggers’ of autoimmune disease, but mechanisms for how this could occur have been difficult to establish. Recent studies have shown that viral infections that are commonly associated with viral myocarditis and other autoimmune diseases such as coxsackievirus B3 (CVB3) and SARS-CoV-2 target mitochondria and are released from cells in mitochondrial vesicles that are able to activate the innate immune response. Studies have shown that Toll-like receptor (TLR)4 and the inflammasome pathway are activated by mitochondrial components. Autoreactivity against cardiac myosin and heart-specific immune responses that occur after infection with viruses where the heart is not the primary site of infection (e.g., CVB3, SARS-CoV-2) may occur because the heart has the highest density of mitochondria in the body. Evidence exists for autoantibodies against mitochondrial antigens in patients with myocarditis and dilated cardiomyopathy. Defects in tolerance mechanisms like autoimmune regulator gene (AIRE) may further increase the likelihood of autoreactivity against mitochondrial antigens leading to autoimmune disease. The focus of this review is to summarize current literature regarding the role of viral infection in the production of extracellular vesicles containing mitochondria and virus and the development of myocarditis.https://www.frontiersin.org/articles/10.3389/fimmu.2024.1374796/fullautoimmune diseaseextracellular vesiclesmitochondriamitochondrial-derived vesiclesmyocarditisAIRE
spellingShingle Damian N. Di Florio
Damian N. Di Florio
Damian N. Di Florio
Danielle J. Beetler
Danielle J. Beetler
Danielle J. Beetler
Elizabeth J. McCabe
Jon Sin
Tsuneya Ikezu
DeLisa Fairweather
DeLisa Fairweather
DeLisa Fairweather
DeLisa Fairweather
Mitochondrial extracellular vesicles, autoimmunity and myocarditis
Frontiers in Immunology
autoimmune disease
extracellular vesicles
mitochondria
mitochondrial-derived vesicles
myocarditis
AIRE
title Mitochondrial extracellular vesicles, autoimmunity and myocarditis
title_full Mitochondrial extracellular vesicles, autoimmunity and myocarditis
title_fullStr Mitochondrial extracellular vesicles, autoimmunity and myocarditis
title_full_unstemmed Mitochondrial extracellular vesicles, autoimmunity and myocarditis
title_short Mitochondrial extracellular vesicles, autoimmunity and myocarditis
title_sort mitochondrial extracellular vesicles autoimmunity and myocarditis
topic autoimmune disease
extracellular vesicles
mitochondria
mitochondrial-derived vesicles
myocarditis
AIRE
url https://www.frontiersin.org/articles/10.3389/fimmu.2024.1374796/full
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