- AMP-Activated Protein Kinase α2 in Neutrophils Regulates Vascular Repair via Hypoxia-Inducible Factor-1α and a Network of Proteins Affecting Metabolism and Apoptosis.
AMP-Activated Protein Kinase α2 in Neutrophils Regulates Vascular Repair via Hypoxia-Inducible Factor-1α and a Network of Proteins Affecting Metabolism and Apoptosis.
Circulation research (2016-10-26)
Randa Abdel Malik, Nina Zippel, Timo Frömel, Juliana Heidler, Sven Zukunft, Barbara Walzog, Nariman Ansari, Francesco Pampaloni, Susanne Wingert, Michael A Rieger, Ilka Wittig, Beate Fisslthaler, Ingrid Fleming
PMID27777247
RÉSUMÉ
The AMP-activated protein kinase (AMPK) is stimulated by hypoxia, and although the AMPKα1 catalytic subunit has been implicated in angiogenesis, little is known about the role played by the AMPKα2 subunit in vascular repair. To determine the role of the AMPKα2 subunit in vascular repair. Recovery of blood flow after femoral artery ligation was impaired (>80%) in AMPKα2 AMPKα2 regulates α-ketoglutarate generation, hypoxia-inducible factor-1α stability, and neutrophil survival, which in turn determine further myeloid cell recruitment and repair potential. The activation of AMPKα2 in neutrophils is a decisive event in the initiation of vascular repair after ischemia.