P16(+) Cells Drive Adverse Postischemic Cardiac Remodeling Through CCL8-Mediated Recruitment of Cytotoxic Lymphocytes.

Circulation 2026

Yan L, Zheng J, Lu Z, Zhu A, Ye M et al.

Abstract

BACKGROUND: Ischemic heart disease remains a leading cause of mortality worldwide, with adverse remodeling after myocardial infarction driven by inflammation and cardiomyocyte loss. Although cytotoxic lymphocytes exacerbate myocardial injury and P16 marks cellular senescence in diseased hearts, the cell type-specific functions of P16 METHODS: Using RESULTS: P16 was induced in fibroblasts, macrophages, coronary endothelial cells, and cardiomyocytes after myocardial infarction. Dasatinib and quercetin treatment selectively eliminated P16 CONCLUSIONS: P16

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