Table 2.
Role of Th immune responses in animal models of myocarditisa
| CVB3-only model | Hybrid-CVB3 model | EAM | |
|---|---|---|---|
| Role of IFN-α (Th1) | Inhibits viral replication | ND | ND |
| Role of IFN-β (Th1) | Inhibits viral replication | Inhibits viral replication Prevents DCM | ND |
| Role of IFN-γ (Th1) | Inhibits viral replication | Inhibits viral replication Prevents DCM | Prevents DCM |
| Role of IL-4 (Th2) | Prevents myocarditis | Increases DCM | Increases DCM |
| Role of IL-33 (Th2) | ND | Increases DCM | ND |
| Role of IL-23 (p40) | Increases myocarditis | No effect on myocarditis | Increases EAM |
| Role of IL-17 (Th17) | Increases myocarditis | ND | No effect on EAM Increases DCM |
Abbreviations: CVB3, coxsackievirus B3; DCM, dilated cardiomyopathy; EAM, experimental autoimmune myocarditis; IL, interleukin; ND, not done; Th, T helper type immune response; IFN, interferon