Innate immune responses following myocardial ischemia and reperfusion: Evidence, mechanisms, and translational challenges - PubMed
4 hours ago
- #Myocardial Ischemia
- #Innate Immunity
- #Immunomodulation
- Restoration of coronary blood flow is crucial for myocardial salvage in acute myocardial infarction (AMI), but injury and adverse remodeling often persist post-reperfusion.
- Experimental models show dynamic innate immune responses involving neutrophils, monocytes, macrophages, and inflammatory pathways that influence myocardial injury and repair.
- Clinical myocardial infarction usually involves prolonged ischemia, leading to irreversible cardiomyocyte necrosis before reperfusion, unlike controlled experimental conditions.
- Immune responses post-revascularization in humans mainly reflect ischemic injury and tissue repair rather than new injury from reperfusion.
- Understanding the distinction between experimental and clinical immune responses aids in interpreting immune mechanisms and developing immunomodulatory strategies for ischemic heart disease.