1988
DOI: 10.1042/bj2500095
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Hydrogen peroxide stimulates tyrosine phosphorylation of the insulin receptor and its tyrosine kinase activity in intact cells

Abstract: 95H-35 rat hepatoma cells were labelled with [32P]orthophosphate and their insulin receptors isolated on wheat germ agglutinin (WGA)-agarose and anti-(insulin receptor) serum. The incubation of these cells with 10 mm-H202 for 10 min increased the phosphorylation of both the serine and tyrosine residues of the ,3 subunit of the insulin receptor. Next, insulin receptors were purified on WGA-agarose from control and H202-treated H-35 cells and the purified fractions incubated with [y-32P]ATP and Mna+. Phosphoryla… Show more

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Cited by 108 publications
(52 citation statements)
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References 26 publications
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“…Treatment of IR-transfected Chinese hamster ovary cells with antioxidants such as N-acetyl-cysteine or butylated hydroxyanisole inhibited insulin responsiveness, whereas partial inhibition of glutathione metabolism, which intracellularly induces a mild oxidative stress condition, stimulated IR tyrosine phosphorylation when measured in vitro (21). A similar increase in IR kinase activity was observed following cell treatment with hydrogen peroxide (22)(23)(24)(25). Moreover, it has been found that oxidation of critical cysteine residues in the IR ␤-subunit may also result in an increase in its intrinsic tyrosine kinase activity, whereas low concentrations of dithiothreitol inactivates the IR kinase, supporting the importance of oxidation of critical thiol groups in activation of the insulin signaling pathway (26,27).…”
mentioning
confidence: 83%
“…Treatment of IR-transfected Chinese hamster ovary cells with antioxidants such as N-acetyl-cysteine or butylated hydroxyanisole inhibited insulin responsiveness, whereas partial inhibition of glutathione metabolism, which intracellularly induces a mild oxidative stress condition, stimulated IR tyrosine phosphorylation when measured in vitro (21). A similar increase in IR kinase activity was observed following cell treatment with hydrogen peroxide (22)(23)(24)(25). Moreover, it has been found that oxidation of critical cysteine residues in the IR ␤-subunit may also result in an increase in its intrinsic tyrosine kinase activity, whereas low concentrations of dithiothreitol inactivates the IR kinase, supporting the importance of oxidation of critical thiol groups in activation of the insulin signaling pathway (26,27).…”
mentioning
confidence: 83%
“…H 2 0 2 has been implicated in signal transduction during insulin action in animal systems [67,81]. Significantly, plasma membrane calcium influx, another recognized component of mammalian cell signal-transduction [122], has been observed as an early event in the bacteria-induced hypersensitive reaction of tobacco suspension cells [4].…”
Section: The Role Of Hydrogen Peroxidementioning
confidence: 99%
“…Larsson and Cerutti also reported that stimulation of mouse epidermal JB6 cells with oxidants increased their S6 kinase activity [78]. Phosphorylation of the insulin receptor at Ser/Thr residues increased by treatment of rat adipocytes [79] or rat hepatoma cells [80] with a relatively high concentration of H202. H 2 0 2 also increased Tyr phosphorylation [SO, 811.…”
Section: Activation Of the Serum-response Element In Hzoz-treated Cellsmentioning
confidence: 99%