AICAR, also known as acadesine, is a cell-permeable nucleoside analogue widely used to probe AMP-activated protein kinase (AMPK) signalling. Once imported into cells, it converts into ZMP inside cytoplasm; this metabolite mimics AMP to trigger AMPK activation, without altering native cellular AMP/ATP ratios. This unique trait makes it a valuable research tool to dissect energy-sensing pathways independently of cellular energy depletion.
Hydrolysis of the ribose glycosidic bond is the primary degradation pathway during production and storage. Quality screening identifies free base impurities and residual synthetic precursors. Mass spectrometry verifies the target molecular weight while HPLC quantifies degraded fractions. Researchers commonly apply AICAR in studies of glucose uptake regulation, mitochondrial biogenesis, lipid turnover and stress-response signalling across multiple cell and tissue models.
Aqueous solutions of AICAR degrade gradually over time. Prepare working solutions fresh prior to cell treatment. Seal the solid container tightly to prevent moisture absorption, as moisture accelerates glycosidic bond breakdown. Split bulk powder into small single-use aliquots to reduce repeated opening and environmental exposure.