1,2-Di-O-.ALPHA.-linolenoyl-3-O-.BETA.-galactosyl-sn-glycerol as a Superoxide Generation Inhibitor from Perilla frutescens var. crispa

  • TAKAHASHI Masakazu
    Department of Bioscience, Faculty of Biotechnology, Fukui Prefectural University
  • SUGIYAMA Yuta
    Department of Bioscience, Faculty of Biotechnology, Fukui Prefectural University
  • KAWABATA Kyuichi
    Department of Bioscience, Faculty of Biotechnology, Fukui Prefectural University
  • TAKAHASHI Yu
    Department of Bioscience, Faculty of Biotechnology, Fukui Prefectural University
  • IRIE Kazuhiro
    Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University
  • MURAKAMI Akira
    Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University
  • KUBO Yoshito
    Fukui Prefectural Food Processing Research Institute
  • KOBAYASHI Kyoichi
    Fukui Prefectural Food Processing Research Institute
  • OHIGASHI Hajime
    Department of Bioscience, Faculty of Biotechnology, Fukui Prefectural University

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Other Title
  • 1,2-Di-O-α-linolenoyl-3-O-β-galactosyl-sn-glycerol as a Superoxide Generation Inhibitor from Perilla frutescens var. crispa
  • 1,2-Di-<i>O</i>-α-linolenoyl-3-<i>O</i>-β-galactosyl-<i>sn</i>-glycerol as a Superoxide Generation Inhibitor from<i>Perilla frutescens</i>var.<i>crispa</i>

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Abstract

Using a superoxide (O2) generation assay system with differentiated HL-60 cells, 1,2-di-O-α-linolenoyl-3-O-β-galactosyl-sn-glycerol (DLGG) was identified as an O2 generation inhibitor from Perilla frutescens var. crispa (a local variety, kida-chirimen shiso). DLGG suppressed the O2 level in a dose-dependent manner with an IC50 value of 21 μM, comparable to those of rosmarinic acid (RoA, IC50=29 μM) and caffeic acid (CA, IC50=30 μM). While RoA and CA also dose-dependently inhibited O2 generation in a xanthine-xanthine oxidase system, DLGG had no effect in the same system. Thus DLGG appeared to decrease the O2 level in the HL-60 assay system by mechanisms different from those of RoA and CA, which appeared to act as O2 scavengers.

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