Abstract
Recent evidence indicates that under in vitro conditions, superoxide anion and hydrogen peroxide (H2O2) are unstable in the presence of manganese ion (Mn2+). The current studies snow that in the presence of Mn2+, H2O2-mediated injury of endothelial cells is greatly attenuated. A source of bicarbonate ion and amino acid is required for Mn2+ to exert its protective effects. Injury by phorbol ester-activated neutrophils is also attenuated under the same conditions. EDTA reverses the protective effects. Acute lung injury produced in vivo in rats by intratracheal instillation of glucose-glucose oxidase is almost completely blocked in rats treated with Mn2+ and glycine. Conversely, treatment of rats with EDTA, a chelator of Mn2+, markedly accentuates lung injury caused by glucose-glucose oxidase. These data are consistent with the findings of others that Mn2+ can facilitate direct oxidation of amino acids with concomitant H2O2 disproportionation. This could form the basis of a new therapeutic approach against oxygen radical-mediated tissue injury.
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Cheton, P. B. L., andF. S. Archibald. 1988. Manganous complexes and the generation and scavenging of hydroxyl free radicals.Free Radical Biol. Med. 5:325–330.
Gutteridge, J. M. C., andJ. V. Bannister. 1986. Copper + zinc and manganese Superoxide dismutase inhibit deoxyribose degradation by the superoxide-driven fenton reaction at two different stages.Biochem. J. 234:225–231.
Stadtman, E. S., B. S. Berlett, andP. B. Chock. 1990. Manganese-dependent disproportionation of hydrogen peroxide in bicarbonate buffer.Proc. Natl. Acad. Sci. U.S.A. 87:384–390.
Berlett, B. S., P. B. Chock, M. B. Yim, andE. R. Stadtman. 1990. Manganese (II) catalyzes the bicarbonate dependent oxidation of amino acids by hydrogen peroxide and the amino acid-facilitated dismutation of hydrogen peroxide.Proc. Natl. Acad. Sci. U.S.A. 87:389–395.
Yim, M. B., B. S. Berlett, P. B. Chock, andE. R. Stadtman. 1990. Manganese (II) bicarbonate-mediated catalytic activity for hydrogen peroxide dismutation and amino acid oxidation: Detection of free radical intermediates.Proc. Natl. Acad. Sci. U.S.A. 87:394–398.
Phan, S. H., D. E. Cannon, J. Varani, U. S. Ryan, andP. A. Ward. 1989. Xanthine oxidase activity in rat pulmonary artery endothelial cells and its alteration by activated neutrophils.Am. J. Pathol. 134:1201–1211.
Varani, J., S. H. Phan, D. F. Gibbs, U. S. Ryan, andP. A. Ward. 1990. H2O2-mediated cytotoxicity of rat pulmonary artery endothelial cells: Changes in ATP and purine products and effects of protective interventions.Lab. Invest. 63:683–689.
Varani, J., S. E. G. Fligiel, G. O. Till, R. G. Kunkel, U. S. Ryan, andP. A. Ward. 1895. Pulmonary endothelial cell killing by human neutrophils: Possible involvement of hydroxyl radical.Lab. Invest. 53:656–661.
Varani, J., M. J. Bendelow, D. E. Sealey, S. L. Kunkel, D. E. Gannon, U. S. Ryan, andP. A. Ward. 1988. Tumor necrosis factor enhances susceptibility of vascular endothelial cells to neutrophil-mediated killing.Lab. Invest. 59:292–296.
Johnson, K. J., andP. A. Ward. 1974. Acute immunologie alveolitis.J. Clin. Invest. 54:349–356.
Yamazaki, I., andL. H. Piette. 1990. ESR spin-trapping studies on the reaction of Fe2+ with H2O2-reactive species in oxygen toxicity in biology.J. Biol. Chem. 265:13589–13594.
Beckman, J. S., R. L. Minor, Jr., andB. A. Freeman. 1986. Augmentation of antioxidant enzymes in vascular endothelium.Free Radical Biol. Med. 2:359–363.
Beckman, J. S., R. L. Minor, Jr., C. W. White, J. E. Repine, G. M. Rosen, andB. A. Freeman. 1988. Superoxide dismutase and catalase conjugated to polyethylene glycol increases endothelial enzyme activity and oxidant resistance.J. Biol. Chem. 263:6884–6890.
Freeman, B. A., S. L. Young, andJ. D. Cropo. 1983. Liposome-mediated augmentation of superoxide dismutase in endothelial cells prevents oxygen injury.J. Biol. Chem. 258:12534–12538.
Parenti, M., L. Rusconi, V. Cappabianca, E. A. Parati, andA. Groppetti. 1988. Role of dopamine in manganese neurotoxicity.Brain Res. 473:236–242.
Skreb, Y., andB. Nagy. 1984. Cell survival after the combined action of manganese (MnCl2) and X-rays in synchronized Chinese hamster cells.Arch. Toxlcol. 56:29–36.
Chandra, S. V., andG. S. Shukla, andR. C. Murthy. 1979. Effect of stress on the response of rat brain to manganese.Toxicol. Appl. Pharmacol. 47:603–608.
Halatcheva, L., andP. Kinolova. 1980. The effect of heavy metais (lead, manganese, mercury) on the concentration of free amino acids in the liver of rats.Arch. Toxicol. (Suppl) 4:355–359.
Webster, W. S., andA. A. Valois. 1987. Reproductive toxicology of manganese in rodents, including exposure during the postnatal period.Neurotoxicology 8:437–442.
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Varani, J., Ginsburg, I., Gibbs, D.F. et al. Hydrogen peroxide-induced cell and tissue injury: Protective effects of Mn2+ . Inflammation 15, 291–301 (1991). https://doi.org/10.1007/BF00917314
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DOI: https://doi.org/10.1007/BF00917314