Vitamin E Research Today is a free monthly online journal that collates and summarizes the latest research about Vitamin E, including details on benefits, dosage, supplements, antioxidants.

Modulation of cell proliferation and gene expression by alpha-tocopheryl phosphates: relevance to atherosclerosis and inflammation.

Ogru E, Libinaki R, Gianello R, West S, Munteanu A, Zingg JM, Azzi A

Department of Biochemistry and Molecular Biology, University of Bern, Buhlstrasse 28, Bern 3012, Switzerland. angelo.azzi@mci.unibe.ch

The effect of a mixture of alpha-tocopheryl phosphate plus di-alpha-tocopheryl phosphate (TPm) was studied in vitro on two cell lines, RASMC (from rat aortic smooth muscle) and human THP-1 monocytic leukemia cells. Inhibition of cell proliferation by TPm was shown in both lines and occurred with TPm at concentrations lower than those at which alpha-tocopherol was equally inhibitory. TPm led in nonstimulated THP-1 cells to inhibition of CD36 mRNA and protein expression, to inhibition of oxidized low-density lipoprotein surface binding and oxLDL uptake. In nonstimulated THP-1 cells, alpha-tocopherol had only very weak effects on these events.

Published 8 March 2005 in Ann N Y Acad Sci, 1031: 405-11.
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