Key result
IFN-γ deficiency in autoimmune myocarditis promotes expansion of CD4+CD44+CD25- T cells, causing increased cardiac inflammation and progression to dilated cardiomyopathy and heart failure.
Why the study?
Does IFN-γ deficiency worsen cardiac dysfunction and inflammation in a mouse model of autoimmune myocarditis?
Population
Mouse model of autoimmune myocarditis
Comparison
IFN-γ deficiency (knockout) vs Wild-type (WT) mice
Design
Preclinical
Authors
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May exacerbate inflammation if IFN-γ is blocked in myocarditis; hypothesis-generating for T-cell subsets in human disease.
Does IFN-γ deficiency worsen cardiac dysfunction and inflammation in a mouse model of autoimmune myocarditis?
IFN-γ deficiency in autoimmune myocarditis exacerbates cardiac inflammation and dysfunction, leading to dilated cardiomyopathy and heart failure via the expansion of apoptosis-resistant CD4+CD44+CD25- T cells.
Afanasyeva et al. (2004) studied Autoimmune myocarditis. IFN-γ deficiency (knockout) vs. Wild-type (WT) mice was evaluated on Cardiac dysfunction, progression to dilated cardiomyopathy and heart failure, and T cell expansion/apoptosis. IFN-γ deficiency in autoimmune myocarditis promotes expansion of CD4+CD44+CD25- T cells, causing increased cardiac inflammation and progression to dilated cardiomyopathy and heart failure.
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