Key result
In a murine myocardial infarction model, depletion of M2 macrophages via the CSF-1R inhibitor GW2580 resulted in a 30% decrease in left ventricular ejection fraction and increased infarct size.
Why the study?
Does GW2580-mediated M2 macrophage depletion alter cardiac function and remodeling in a murine model of myocardial infarction?
Does GW2580-mediated M2 macrophage depletion alter cardiac function and remodeling in a murine model of myocardial infarction?
Effect estimate: 30% decrease
p-value: p=<0.05
Depletion of M2 macrophages via CSF-1R inhibition impairs cardiac functional recovery and increases infarct size post-myocardial infarction in mice, highlighting their critical role in cardiac repair.
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Should not alter clinical practice; leaves open M2 macrophage targeting in human post-MI remodeling.
Leblond et al. (2015) studied Myocardial Infarction. GW2580 (CSF-1R kinase inhibitor) vs. Vehicle was evaluated on Left ventricular ejection fraction 2 weeks post-myocardial infarction (30% decrease, p=<0.05). In a murine myocardial infarction model, depletion of M2 macrophages via the CSF-1R inhibitor GW2580 resulted in a 30% decrease in left ventricular ejection fraction and increased infarct size.
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