<unk>  (or<unk> : see American and British English differences) is a form of extracellular<unk>  mediated by purine nucleotides and nucleosides such as adenosine and ATP. It involves the activation of<unk>  receptors in the cell and/or in nearby cells, thereby regulating cellular functions. The<unk>  complex of a cell is sometimes referred to as the “purinome”.
Purinergic signalling
Parafunctional activity
Cholinergic anti-inflammatory pathway
Hedgehog signaling pathway
Insulin signal transduction pathway
Glucose uptake
Biological functions of nitric oxide
Mechanosensitive channels