🫀🧬 Chemo's Quiet Aftermath: A New Macrophage Map of the Heart
Dr RR Baliga's "Got Knowledge Doc" Podkast
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Show Notes
🧬💥 New cardio-oncology insight: DNA-damaging chemotherapy (highlighting carboplatin) can reprogram the heart's immune "resident staff"—specifically CCR2− cardiac-resident macrophages—followed by monocyte-driven repopulation that looks "resident-like." 🫀🛡️
In a mouse model, this post-chemo macrophage landscape was linked to less adverse remodeling after hypertensive stress (AngII/PE), with reduced fibrosis and cardiomyocyte hypertrophy and lower remodeling gene signals. 📉🔬
Take-home: beyond myocytes, chemotherapy may shift the cardiac immune baseline that shapes later injury responses—an underappreciated axis for survivorship risk (and resilience). ✅
#CardioOncology #Chemotherapy #Immunology #Macrophages #HeartFailure #CancerSurvivorship #PrecisionMedicine