Title : Propofol reverses oxidative stress-attenuated glutamate transporter EAAT3 activity: evidence of protein kinase C involvement.

Pub. Date : 2007 Jun 22

PMID : 17382927






6 Functional Relationships(s)
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1 The authors investigated the effects of propofol on EAAT3 (excitatory amino acid transporter 3) activity under oxidative stress induced by tert-butyl hydroperoxide (t-BHP), and the mediation of these effects by protein kinase C (PKC). tert-Butylhydroperoxide solute carrier family 1 member 1 Rattus norvegicus
2 The authors investigated the effects of propofol on EAAT3 (excitatory amino acid transporter 3) activity under oxidative stress induced by tert-butyl hydroperoxide (t-BHP), and the mediation of these effects by protein kinase C (PKC). tert-Butylhydroperoxide solute carrier family 1 member 1 Rattus norvegicus
3 The authors investigated the effects of propofol on EAAT3 (excitatory amino acid transporter 3) activity under oxidative stress induced by tert-butyl hydroperoxide (t-BHP), and the mediation of these effects by protein kinase C (PKC). tert-Butylhydroperoxide solute carrier family 1 member 1 Rattus norvegicus
4 Exposure of these oocytes to t-BHP (1-20 mM) for 10 min dose-dependently decreased EAAT3 activity, and t-BHP (5 mM) significantly decreased the Vmax, but not the Km of EAAT3 for glutamate, and propofol (1-100 microM) dose-dependently reversed this t-BHP-attenuated EAAT3 activity. tert-Butylhydroperoxide solute carrier family 1 member 1 Rattus norvegicus
5 Phorbol-12-myristate-13-acetate (a PKC activator), also abolished this t-BHP-induced reduction in EAAT3 activity, whereas staurosporine (a PKC inhibitor), significantly decreased EAAT3 activity. tert-Butylhydroperoxide solute carrier family 1 member 1 Rattus norvegicus
6 Phorbol-12-myristate-13-acetate (a PKC activator), also abolished this t-BHP-induced reduction in EAAT3 activity, whereas staurosporine (a PKC inhibitor), significantly decreased EAAT3 activity. tert-Butylhydroperoxide solute carrier family 1 member 1 Rattus norvegicus