2-chloro-3-Deazaadenosine

产品描述
2-chloro-3-Deazaadenosine, a stable analog of adenosine, is an agonist for adenosine receptors [1]. Adenosine receptors are members of G-protein-coupled receptors (GPCRs). Extracellular adenosine acts as a local modulator with a generally cytoprotective function in the body. Extracellular adenosine has been implicated in increasing the ratio of oxygen supply to demand, protecting against ischaemic damage by cell conditioning, triggering anti-inflammatory responses and the promotion of angiogenesis [2].In vitro: The Ki values of 2-chloro-3-Deazaadenosine for A1, A2A, A2B, and A3 receptors were 0.3, 0.08, 25.5, and 1.9 μM, respectively [1]. 2-chloroadenosine (25 μM) increased activity of platelet adenylate cyclase to about 150–160% of the control value. Higher concentrations of 2-chloroadenosine showed less effect above 100 μM [3]. In vivo: In the rat with delayed ischaemic damage, Iterative focal injections of 2-chloroadenosine protected against selective hippocampal CA1 loss [4]. References:[1] Linden J, Thai T, Figler H, et al. Characterization of Human A2B Adenosine Receptors: Radioligand Binding, Western Blotting, and Coupling to Gqin Human Embryonic Kidney 293 Cells and HMC-1 Mast Cells[J]. Molecular Pharmacology, 1999, 56(4): 705-713.[2] Jacobson K A, Gao Z G. Adenosine receptors as therapeutic targets[J]. Nature Reviews Drug Discovery, 2006, 5(3): 247-264.[3] Haslam R J, Lynham J A. Activation and inhibition of blood platelet adenylate cyclase by adenosine or by 2-chloroadenosine[J]. Life Sciences, 1972, 11(23): 1143-1154.[4] Evans M C, Swan J H, Meldrum B S. An adenosine analogue, 2-chloroadenosine, protects against long term development of ischaemic cell loss in the rat hippocampus[J]. Neuroscience letters, 1987, 83(3): 287-292.

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