Foscarnet sodium can inhibit dNTPs thus attenuats viral RNA polymerases, reverse transcriptase, and DNA polymerases. It is used in the treatment of cytomegalovirus retinitis.
DNA polymerases are essential enzymes responsible for replication and repair of DNA in all organisms[3]. Foscarnet Sodium is a viral DNA polymerase activity inhibitor,Foscarnet sodium can inhibit dNTPs thus attenuats viral RNA polymerases, reverse transcriptase, and DNA polymerases. It is used in the treatment of cytomegalovirus retinitis[4].The simultaneous infusion of foscarnet increased the renal clearance of lithium and its ratio to creatinine clearance as well as the urinary excretion of phosphate. Foscarnet also inhibited the lithium-induced phosphorylation of GSK3β[5].Foscarnet in phosphate-buffered saline decreased in a dose-dependent manner the viability of cultured human skin fibroblasts. This toxic effect was markedly decreased when foscarnet was incorporated into the polymer matrix[6].Foscarnet competes with ATP against the binding on fibroblast growth factor 2 at the heparin/ATP-binding domain. This indicates binding of foscarnet at the heparin-binding domain of FGF2. This interaction of foscarnet with fibroblast growth factor 2 reduces FGF2-induced proliferation of human umbilical vein endothelial cells and intracellular signaling via ERK1/2 kinases in this cell line[7].
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