Di Zhu, Zhen Zhang, Jianli Zhao, Demin Liu, Lu Gan, Wayne Bond Lau, Dina Xie, Zhijun Meng, Peng Yao, Jumpei Tsukuda, Theodore A Christopher, Bernard L Lopez, Erhe Gao, Walter J Koch, Yajing Wang, Xin-Liang Ma
BACKGROUND: Despite significantly reduced acute myocardial infarction (MI) mortality in recent years, ischemic heart failure continues to escalate. Therapeutic interventions effectively reversing pathological remodeling are an urgent unmet medical need. We recently demonstrated that AdipoR1 (APN [adiponectin] receptor 1) phosphorylation by GRK2 (G-protein-coupled receptor kinase 2) contributes to maladaptive remodeling in the ischemic heart. The current study clarified the underlying mechanisms leading to AdipoR1 phosphorylative desensitization and investigated whether blocking AdipoR1 phosphorylation may restore its protective signaling, reversing post-MI remodeling...
July 8, 2022: Circulation Research