#Binding and Uptake of 125Iodine-Labelled, Oxidized Low Density Lipoprotein by Macrophages: Comparism of the Effects of α-Tocopherol, Probucol, Pyridoxal-5'-phosphate and Magnesium-pyridoxal-5'-phosphate-glutamate

Daniela Selmer, E. F. Elstner, Reingard Senekowitsch-Schmidtke, W. Schneider

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Abstract

Specific and unspecific binding and uptake (internalization) by macrophages of 125iodine-labelled, copper-oxidized human low density lipoprotein is differently influenced by the antioxidants a-tocopherol (a-Toc). probucol (Prob), pyridoxal-5'-phosphate (PP) and the magnesium-pyridoxal-5'-phosphate glutamate complex (MPPG). Binding as well as internalization, mediated by the so-called “scavenger receptor” is lower in the presence of MPPG whereas both specific binding and internalization are enhanced. The comparison of the effects in vitro allows a rating of the potentially antiatherogenic and thus protective effects of the tested substances as follows: MPPG > PP > α-Toc > Prob.

Original languageEnglish
Pages (from-to)97-104
Number of pages8
JournalZeitschrift fur Naturforschung - Section C Journal of Biosciences
Volume52
Issue number1-2
DOIs
StatePublished - Feb 1997

Keywords

  • Low Density Lipoprotein
  • Macrophage

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