Abstract
The natural vitamin E (RRR-α-tocopherol) exists in most biological membranes and functions as a chain-breaking antioxidant during lipid peroxidation1. Beyond its antioxidative property, vitamin E has been shown to inhibit the proliferation of smooth muscle cells by modulating protein kinase C2. The regulatory role of vitamin E in the production of certain lipid mediators has also been demonstrated. For instance, vitamin E was found to enhance the transacylation of alkylglycerophosphocholine3, alter the level of phosphatidic acid and diacylglycerol4, and potentiate prostacyclin synthesis in endothelial cells5. In addition, vitamin E was shown to inhibit thromboxane6 and leukotriene7 formation in platelets and neutrophils, respectively.
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References
L.J. Machlin, Vitamin E, in: Handbook of Vitamins, 2nd Ed., L.J. Machlin, ed., M. Dekker, New York (1991).
D. Boscoboinik, A. Szewczyk, C. Hensey, and A. Azzi, Inhibition of cell proliferation by α-tocopherol. Role of protein kinase C, J Biol Chem 266: 6188 (1991).
K. Tran, A.F. D’Angelo, P.C. Choy, and A.C. Chan, Vitamin E enhances the acylation of 1-O-alkyl-sn-glycero-3-phosphocholine in human endothelial cells, Biochem J 298: 115(1994).
K. Tran, P.R. Proulx, and A.C. Chan, Vitamin E suppresses diacylglycerol (DAG) level in thrombin-stimulated endothelial cells through an increase of DAG kinase activity, Biochim Biophys Acta 1212: 193 (1994).
K. Tran, and A.C. Chan, RRR-α-tocopherol potentiates prostacyclin release in human endothelial cells. Evidence for structural specificity of the tocopherol molecule, Biochim Biophys Acta 1043: 189 (1990).
S.-St. Hamelin, and A.C. Chan, Modulation of platelet thromboxane and malonaldehyde by dietary vitamin E and linoleate, Lipids 18: 267 (1983).
A.C. Chan, K. Tran, D.D. Pyke, and W.S. Powell, Effect of dietary vitamin E on the biosynthesis of 5-lipoxygenase products by rat polymorphonuclear leukocytes (PMNL), Biochim Biophys Acta 1005: 265(1989).
R.J. Mayer, and L.A. Marshall, New insights on mammalian phospholipase A2(s); comparison of arachidonoyl-selective and-nonselective enzymes, FASEB J 7: 339 (1993).
L-L. Lin, A.Y. Lin, and J.L. Knopf, Cytosolic phospholipase A2 is coupled to hormonally regulated release of arachidonic acid, Proc Natl. Acad Sci USA 89: 6147 (1992).
W.L. Smith, The eicosanoids and their biochemical mechanisms of action, Biochem J 259: 315(1989)
L.J. Reynolds, L.L. Hughes, A.I. Louis, R.M. Kramer, and E.A. Dennis, Metal ion and salt effects on the phospholipase A2, lysophospholipase, and transacylase activities of human cytosolic phospholipase A2, Biochim Biophys Acta 1167: 272 (1993).
P.C. Choy, K. O, R.Y.K. Man, and A.C. Chan, Phosphatidylcholine metabolism in isolated rat heart modulation by ethanol and vitamin E, Biochim Biophys Acta 1005: 225 (1989)
J.F. Keaney Jr., J.M. Gaziano, A. Xu, B. Frei, J. Curran-Celentano, G.T. Shwaery, J. Loscalzo, and J.A. Vita, Low-dose α-tocopherol improves and high-dose a-tocopherol worsens endothelial vasodilator function in cholesterol-fed rabbits, J. Clin Invest 93: 844 (1994)
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Tran, K. et al. (1997). Vitamin E (α-Tocopherol) Enhances Arachidonic Acid Release in Rat Heart Myoblastic Cells Through the Activation of Cytosolic Phospholipase A2 . In: Honn, K.V., Marnett, L.J., Nigam, S., Jones, R.L., Wong, P.YK. (eds) Eicosanoids and other Bioactive Lipids in Cancer, Inflammation, and Radiation Injury 3. Advances in Experimental Medicine and Biology, vol 407. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-1813-0_19
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DOI: https://doi.org/10.1007/978-1-4899-1813-0_19
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