The influence of ambroxol - a mucolytic drug - on the activity of human platelet soluble guanylate cyclase and rat lung soluble guanylate cyclase and activation of both enzymes by NO-donors (sodium nitroprusside and Sin-1) were investigated. Ambroxol in the concentration range from 0.1 to 10 μM had no effect on the basal activity of both enzymes. Ambroxol inhibited in a concentration-dependent manner the sodium nitroprusside-induced human platelet soluble guanylate cyclase and rat lung soluble guanylate cyclase with the IC50 values 3.9 and 2.1 μM, respectively. Ambroxol did not influence the stimulation of both enzymes by protoporphyrin IX.The influence of artemisinin - an antimalarial drug - on human platelet soluble guanylate cyclase activity and the enzyme activation by NO-donors were investigated. Artemisinin (0.1-100 μM) had no effect on the basal activity of the enzyme. Artemisinin inhibited in a concentration-dependent manner the sodium nitroprusside-induced activation of human platelet guanylate cyclase with an IC50 value 5.6 μM. Artemisinin (10 μM) also inhibited (by 71±4.0%) the activation of the enzyme by thiol-dependent NO-donor the derivative of furoxan, 3,4-dicyano-1,2,5-oxadiazolo-2-oxide (10 μM), but did not influence the stimulation of soluble guanylate cyclase by protoporphyrin IX. It was concluded that the sygnalling system NO-soluble guanylate cyclase-cGMP is involved in the molecular mechanism of the therapeutic action of ambroxol and artemisinin.
Pyatakova N.V., Severina I.S. (2012) Soluble guanylate cyclase in the molecular mechanism underlying the therapeutic action of drugs. Biomeditsinskaya Khimiya, 58(1), 32-42.
Pyatakova N.V. et al. Soluble guanylate cyclase in the molecular mechanism underlying the therapeutic action of drugs // Biomeditsinskaya Khimiya. - 2012. - V. 58. -N 1. - P. 32-42.
Pyatakova N.V. et al., "Soluble guanylate cyclase in the molecular mechanism underlying the therapeutic action of drugs." Biomeditsinskaya Khimiya 58.1 (2012): 32-42.
Pyatakova, N. V., Severina, I. S. (2012). Soluble guanylate cyclase in the molecular mechanism underlying the therapeutic action of drugs. Biomeditsinskaya Khimiya, 58(1), 32-42.
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