Key result
Klf9 deficiency increases post-MI mortality and cardiac rupture by impairing IFN-γ/STAT1-mediated macrophage recruitment.
Why the study?
The inflammatory response post-MI affects wound healing, but the contribution of Klf9 to macrophage phenotype and function in this context remains unclear.
Population
Klf9-/- and WT mice after MI
Comparison
Klf9-/- mice vs WT mice
Design
Preclinical animal study
Authors
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Klf9 supports post-MI healing via macrophage polarization in mice; leaves open whether targeting this pathway improves human outcomes.
Klf9 plays a protective role in post-myocardial infarction repair by modulating macrophage recruitment and polarization through the IFN-γ/STAT1 signaling pathway.
Xu et al. (2025) studied Myocardial infarction (n=70). Klf9 knockout vs. Wild-type was evaluated on Survival post-MI. Klf9 deficiency resulted in higher mortality and cardiac rupture rates after myocardial infarction by dysregulating the IFN-γ/STAT1 signaling pathway and impairing macrophage recruitment.
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