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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Evidence for LTB4/12-HETE binding sites in a human epidermal cell line.

We identified leukotriene B4 (LTB4)/12-hydroxyeicosatetraenoic acid (12-HETE) binding sites in a squamous cell cancer-derived human epidermal cell line. Analysis of the binding data revealed a single class of binding sites with a dissociation constant of 0.16 microM and a Bmax of 3.8 x 10(6) sites per cell. Competitive binding assays with various eicosanoids at 37 degrees C showed nearly equal binding of 12(S)-HETE, 12(R)-HETE and LTB4. 5(S)-HETE and LTB4-analogs bound with lesser affinity. Specific LTB4 binding at 37 degrees C could also be demonstrated in freshly isolated normal human keratinocytes. Since lipoxygenase-derived eicosanoids are thought to play an important role in hyperproliferative and inflammatory skin diseases, the identification of LTB4/12-HETE binding sites in keratinocytes could have implications for the development of new drugs controlling these disease processes.[1]


  1. Evidence for LTB4/12-HETE binding sites in a human epidermal cell line. Gross, E., Ruzicka, T., Mauch, C., Krieg, T. Prostaglandins (1988) [Pubmed]
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