Entry |
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Name |
Viral myocarditis - Rousettus aegyptiacus (Egyptian rousette)
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Description |
Myocarditis is a cardiac disease associated with inflammation and injury of the myocardium. It results from various etiologies, both noninfectious and infectious, but coxsackievirus B3 (CVB3) is still considered the dominant etiological agent. Myocarditis may be caused by direct cytopathic effects of virus, a pathologic immune response to persistent virus, or autoimmunity triggered by the viral infection. The virus enters the myocyte through internalization of the coxsackie-adenoviral receptor (CAR) and its coreceptor, decay-accelerating factor (DAF). Viral proteases cleave various proteins in the host cell. One example is viral protease 2A, which cleaves eukaryote initiation factor 4G (eIF4G) and the dystrophin protein, resulting in a complete shutdown of cap-dependent RNA translation and cytoskeletal destruction in infected cardiomyocytes, respectively. CVB3 also cleaves the member of the Bcl-2 family Bid, leading to apoptosis. CVB3 infection also induces the cleavage of cyclin D protein through a proteasome-dependent pathway, leading to the host cell-growth arrest. Viral infection and necrosis of myocytes may lead to the release of intracellular antigens, resulting in activation of self-reactive T cells. CVB infection is a significant cause of dilated cardiomyopathy (DCM) as well as myocarditis. Epidemiologically, myocarditis underlies a significant portion of patients with DCM.
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Class |
Human Diseases; Cardiovascular disease
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Pathway map |

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Organism |
Rousettus aegyptiacus (Egyptian rousette) [GN: ray]
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Gene |
107497815 | CD55; LOW QUALITY PROTEIN: complement decay-accelerating factor [KO:K04006] |
107515925 | RAC1; ras-related C3 botulinum toxin substrate 1 isoform X1 [KO:K04392] |
107512124 | EIF4G2; eukaryotic translation initiation factor 4 gamma 2 [KO:K03260] |
107504912 | EIF4G1; LOW QUALITY PROTEIN: eukaryotic translation initiation factor 4 gamma 1 [KO:K03260] |
107513047 | EIF4G3; eukaryotic translation initiation factor 4 gamma 3 isoform X1 [KO:K03260] |
107514532 | CD40; tumor necrosis factor receptor superfamily member 5 isoform X1 [KO:K03160] |
107506765 | DLA class II histocompatibility antigen, DR-1 beta chain-like [KO:K06752] |
107506766 | HLA class II histocompatibility antigen, DR alpha chain [KO:K06752] |
107505772 | HLA class II histocompatibility antigen, DQ alpha 2 chain-like [KO:K06752] |
107505773 | boLa class II histocompatibility antigen, DQB*0101 beta chain-like [KO:K06752] |
107505774 | HLA class II histocompatibility antigen, DQ alpha 2 chain-like [KO:K06752] |
107511941 | H-2 class II histocompatibility antigen, A-R alpha chain-like [KO:K06752] |
107511990 | HLA class II histocompatibility antigen, DO alpha chain [KO:K06752] |
107511992 | HLA class II histocompatibility antigen, DM beta chain [KO:K06752] |
107511993 | HLA class II histocompatibility antigen, DM alpha chain isoform X1 [KO:K06752] |
107511999 | HLA class II histocompatibility antigen, DO beta chain isoform X1 [KO:K06752] |
107512001 | HLA class II histocompatibility antigen, DQ beta 1 chain-like isoform X1 [KO:K06752] |
107507331 | HLA class II histocompatibility antigen, DQ alpha 2 chain-like [KO:K06752] |
107507332 | SLA class II histocompatibility antigen, DQ haplotype C beta chain-like isoform X1 [KO:K06752] |
107505290 | saoe class I histocompatibility antigen, A alpha chain-like [KO:K06751] |
107503252 | HLA class I histocompatibility antigen, B-48 alpha chain-like isoform X1 [KO:K06751] |
107517540 | H-2 class I histocompatibility antigen, Q10 alpha chain-like isoform X1 [KO:K06751] |
107519335 | LOW QUALITY PROTEIN: HLA class I histocompatibility antigen, B-46 alpha chain-like [KO:K06751] |
107506412 | HLA class I histocompatibility antigen, A-30 alpha chain-like [KO:K06751] |
107506470 | patr class I histocompatibility antigen, B-2 alpha chain-like isoform X1 [KO:K06751] |
107506555 | patr class I histocompatibility antigen, A-126 alpha chain-like isoform X1 [KO:K06751] |
107509876 | HLA class I histocompatibility antigen, B-48 alpha chain-like [KO:K06751] |
107511741 | saoe class I histocompatibility antigen, A alpha chain-like [KO:K06751] |
107520746 | HLA class I histocompatibility antigen, A-30 alpha chain-like isoform X1 [KO:K06751] |
107521730 | HLA class I histocompatibility antigen, B-15 alpha chain-like [KO:K06751] |
107507129 | HLA class I histocompatibility antigen, B-14 alpha chain-like isoform X1 [KO:K06751] |
107506218 | HLA class I histocompatibility antigen, B-14 alpha chain-like isoform X1 [KO:K06751] |
107498449 | HLA class I histocompatibility antigen, B-15 alpha chain-like isoform X1 [KO:K06751] |
107497773 | CD86; T-lymphocyte activation antigen CD86 isoform X1 [KO:K05413] |
107519371 | CD28; T-cell-specific surface glycoprotein CD28 isoform X1 [KO:K06470] |
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Reference |
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Authors |
Esfandiarei M, McManus BM |
Title |
Molecular biology and pathogenesis of viral myocarditis. |
Journal |
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Reference |
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Authors |
Badorff C, Knowlton KU |
Title |
Dystrophin disruption in enterovirus-induced myocarditis and dilated cardiomyopathy: from bench to bedside. |
Journal |
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Reference |
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Authors |
Maekawa Y, Ouzounian M, Opavsky MA, Liu PP |
Title |
Connecting the missing link between dilated cardiomyopathy and viral myocarditis: virus, cytoskeleton, and innate immunity. |
Journal |
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Reference |
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Authors |
Pankuweit S, Portig I, Maisch B |
Title |
Pathophysiology of cardiac inflammation: molecular mechanisms. |
Journal |
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Reference |
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Authors |
Gao G, Luo H |
Title |
The ubiquitin-proteasome pathway in viral infections. |
Journal |
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Reference |
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Authors |
Coyne CB, Bergelson JM |
Title |
Virus-induced Abl and Fyn kinase signals permit coxsackievirus entry through epithelial tight junctions. |
Journal |
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Reference |
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Authors |
Badorff C, Lee GH, Knowlton KU |
Title |
Enteroviral cardiomyopathy: bad news for the dystrophin-glycoprotein complex. |
Journal |
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Reference |
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Authors |
Knowlton KU |
Title |
CVB infection and mechanisms of viral cardiomyopathy. |
Journal |
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Reference |
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Authors |
Castellano G, Affuso F, Di Conza P, Fazio S |
Title |
Myocarditis and dilated cardiomyopathy: possible connections and treatments. |
Journal |
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Reference |
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Authors |
Cooper LT Jr |
Title |
Myocarditis. |
Journal |
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Reference |
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Authors |
Kawai C |
Title |
From myocarditis to cardiomyopathy: mechanisms of inflammation and cell death: learning from the past for the future. |
Journal |
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Reference |
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Authors |
Liu PP, Mason JW |
Title |
Advances in the understanding of myocarditis. |
Journal |
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Reference |
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Authors |
Mason JW |
Title |
Myocarditis and dilated cardiomyopathy: an inflammatory link. |
Journal |
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Reference |
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Authors |
Tam PE |
Title |
Coxsackievirus myocarditis: interplay between virus and host in the pathogenesis of heart disease. |
Journal |
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Related pathway |
ray04612 | Antigen processing and presentation |
ray04660 | T cell receptor signaling pathway |
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KO pathway |
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LinkDB |
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