Involvement of S100A8 and S100A9 in nonischaemic cardiomyopathy
Qiu-Yue Lin , Wen-Xi Jiang , Hui-Hua Li
Clinical and Translational Discovery ›› 2025, Vol. 5 ›› Issue (2) : e70039
Involvement of S100A8 and S100A9 in nonischaemic cardiomyopathy
The heterodimeric complex of S100 calcium binding proteins A8 and A9 (S100A8/A9, also known as Calprotectin) is constitutively expressed in myeloid neutrophils and monocytes and plays a role in the modulation of the inflammatory response and cytoskeleton rearrangement. Recently, S100A8/A9 complex has garnered significant attention as a critical alarmin involved in regulating the pathogenesis of various inflammatory cardiovascular diseases, particularly nonischaemic cardiomyopathy (NICM). Furthermore, S100A8/A9 is reportedly associated with the pathophysiological processes of myocardial ischaemia‒reperfusion injury and has also been recognised as a predictor and a potentialmediator of heart failure caused by acutemyocardial infarction. Recent studies have attempted to provide a comprehensive and detailed overview of the involvement of the S100A8/A9 protein in NICM, covering topics such as hypertrophicmyocardial remodelling, septic and dilated cardiomyopathy,myocarditis, chemotherapeutic cardiotoxicity, senescent cardiac dysfunction and cardiac allograft rejection. Ultimately, we aimed to evaluate the application of S100A8/A9 as promising biomarkers and therapeutic strategies for the prediction, prevention and treatment of NICM.
biomarker / inflammation / nonischaemic cardiomyopathy / S100A8/A9 / therapeutic strategy
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2025 The Author(s). Clinical and Translational Discovery published by John Wiley & Sons Australia, Ltd on behalf of Shanghai Institute of Clinical Bioinformatics.
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