Description General description In the extracellular space, ecto-5′-nucleotidase (CD73) dephosphorylates adenosine triphosphate (ATP) to produce adenosine. Adenosine has four receptors namely A1R, A2AR A2BR and A3R. Adenosine plays a key role in the osteogenic differentiation. A1R induces osteoclast differentiation and A2AR induces osteoblast differentiation. Application Adenosine has been used: • as a supplement in embryonic type culture medium for in vitro osteogenic differentiation • for evaluation of its effect on cell survival by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT assay) and cell proliferation by 3H-thymidine incorporation assay in multi drug resistant glioblastoma stem-like cells (GSCs), and as a standard in high performance liquid chromatography (HPLC). • as a constituent in collagenase solution for the collagenase digestion of mice fat tissue. Packaging 1, 5, 25, 100 g in poly bottle Biochem/physiol Actions Endogenous neurotransmitter at adenosine receptors. Cardioprotective effects may relate to activation of A1 adenosine receptors. The antiplatelet and anti−inflammatory actions of adenosine appear to be mediated via the A2 adenosine receptor. In contrast, adenosine appears to be a pro-inflammatory mediator in asthma and chronic obstructive pulmonary disease (COPD). Features and Benefits This compound is a featured product for Cyclic Nucleotide research. Click here to discover more featured Cyclic Nucleotide products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm. This compound is also offered as part of Sigma′s Library of Pharmacologically Active Compounds (LOPAC®1280), a biologically annotated collection of high-quality, ready-to-screen compounds. Click here to learn more. This compound is featured on the Adenylyl cyclases and Phosphoinositide Kinases pages of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here. Legal Information LOPAC is a registered trademark of Sigma-Aldrich Co. LLC