AICAR (5-aminoimidazole-4-carboxamide ribonucleoside, also written as acadesine or AICA-riboside) is a nucleoside analogue that is taken up by cells and phosphorylated to form ZMP, a structural analogue of AMP. ZMP accumulation mimics the cell's perception of low energy status by activating AMP-activated protein kinase (AMPK), a central metabolic sensor that governs cellular energy homeostasis across virtually all tissues. AMPK is sometimes described as the cell's master energy switch: it is activated when the AMP-to-ATP ratio rises and it orchestrates a coordinated response to restore energy balance.
AICAR (5-aminoimidazole-4-carboxamide ribonucleoside, also written as acadesine or AICA-riboside) is a nucleoside analogue that is taken up by cells and phosphorylated to form ZMP, a structural analogue of AMP. ZMP accumulation mimics the cell's perception of low energy status by activating AMP-activated protein kinase (AMPK), a central metabolic sensor that governs cellular energy homeostasis across virtually all tissues. AMPK is sometimes described as the cell's master energy switch: it is activated when the AMP-to-ATP ratio rises and it orchestrates a coordinated response to restore energy balance.