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Epoxygenase Inhibitors Attenuate the Stimulatory Effect of Glutoxim on Na Transport in Frog Skin

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Specialties Biochemistry
Biophysics
Date 2018 Jul 16
PMID 30008098
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Abstract

Using voltage-clamp technique, the involvement of epoxygenases in immunomodulatory drug glutoxim regulation of Na transport in frog skin was investigated. We have shown for the first time that preincubation of the frog skin with epoxygenase inhibitors econazole or proadifen almost completely inhibits the stimulatory effect of glutoxim on Na transport. The data suggest the involvement of the enzymes and/or products of epoxygenase oxidation pathway of arachidonic acid metabolism in glutoxim effect on Na transport in frog skin epithelium.

References
1.
Firsov D, Gruender S, Schild L, Rossier B . Mutational analysis of cysteine-rich domains of the epithelium sodium channel (ENaC). Identification of cysteines essential for channel expression at the cell surface. J Biol Chem. 1999; 274(5):2743-9. DOI: 10.1074/jbc.274.5.2743. View

2.
Capdevila J, Wang W . Role of cytochrome P450 epoxygenase in regulating renal membrane transport and hypertension. Curr Opin Nephrol Hypertens. 2013; 22(2):163-9. PMC: 3893099. DOI: 10.1097/MNH.0b013e32835d911e. View

3.
NEEDLEMAN P, Turk J, Jakschik B, Morrison A, Lefkowith J . Arachidonic acid metabolism. Annu Rev Biochem. 1986; 55:69-102. DOI: 10.1146/annurev.bi.55.070186.000441. View

4.
Krutetskaya Z, Melnitskaya A, Antonov V, Nozdrachev A . Inhibitors of the cyclooxygenase oxidation pathway of arachidonic acid suppress the stimulating effect of glutoxim on Na(+) transport in frog skin. Dokl Biol Sci. 2013; 451:193-5. DOI: 10.1134/S0012496613040042. View

5.
Pavlov T, Ilatovskaya D, Levchenko V, Mattson D, Roman R, Staruschenko A . Effects of cytochrome P-450 metabolites of arachidonic acid on the epithelial sodium channel (ENaC). Am J Physiol Renal Physiol. 2011; 301(3):F672-81. PMC: 3174560. DOI: 10.1152/ajprenal.00597.2010. View