| adenosine regulating agents |
Acadesine is the prototype of a new class of compounds termed adenosine regulating agents. Acadesine is a purine nucleosid analogue that enters the myocyte and is immediately phosphorylated to ZMP (AICA ribotide), which is further metabolised to Inosine mono-phosphate (an intermediate in the synthesis ofadenosine triphosphate (ATP) and guanosine triphos-phate).
Claims that acadesine may serve as a substrate for ATP synthesis and result in repletion of myocardial ATP were supported by some studies and refuted by others. Because acadesine may be a precursor in the synthesis of myocardial ATP it was proposed as a possible agent of myocardial protection during ischaemia, particularly because myocardial ATP depletion has been linked to cell death. |
| Chemical Properties |
Solid |
| Uses |
glucose uptake stimulant; AMPK activator |
| Uses |
AICAR is a nucleoside analogue that is able to enter nucleoside pools and is able to significantly increase levels of adenosine during periods of ATP breakdown. Adenosine-regulating agents (ARAs) hav e been recognized for therapeutic potential in myocardial ischemia. Cardioprotective. |
| Definition |
ChEBI: A 1-ribosylimidazolecarboxamide in which the carboxamide group is situated at position 4 of the imidazole ring, which is further substituted at position 5 by an amino group. A purine nucleoside analogue and activator of AMP-activated protein kinase, it is is used for the treatment of acute lymphoblastic leukemia and is reported to have cardioprotective effects. |
| Biological Activity |
Cell-permeable, allosteric activator of AMP-activated protein kinase (AMPK). Augments proliferation, differentiation and mineralization of osteoblastic MC3T3-EI cells and attenuates psychosine-induced expression of proinflammatory cytokines and iNOS in astrocytes. |
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