The Adenosinergic System in Diabetic Retinopathy

Figure 1

Representation of the adenosinergic system, from adenosine formation and release to signaling and removal from the extracellular space. ADA: adenosine deaminase; Ado: adenosine; AK: adenosine kinase; AMP: adenosine monophosphate; ATP: adenosine triphosphate; e-5′-NT: ecto-5′-nucleotidase; Ino: inosine; NT: nucleoside transporter; NTPDase: nucleoside triphosphate diphosphohydrolase.