Stereochemical assignment and anti-inflammatory properties of the omega-3 lipid mediator resolvin E3

Yosuke Isobe, Makoto Arita, Ryo Iwamoto, Daisuke Urabe, Hidenori Todoroki, Koji Masuda, Masayuki Inoue, Hiroyuki Arai

研究成果: Article査読

52 被引用数 (Scopus)

抄録

Uncontrolled inflammation is now considered to be a link between many widely occurring diseases. Thus, controlling the innate inflammatory response and its local chemical mediators has been receiving increasing attention. We recently identified a novel family of eicosapentaenoic acid (EPA)-derived mediators produced by eosinophils, denoted as resolvin E3 (RvE3), that possess potent anti-inflammatory actions both in vitro and in vivo. Carbons at 17 and 18 positions are asymmetric and thus the molecule has a total of four potential stereoisomers. Here, we assigned the stereochemistry of the conjugated double bonds and chirality of alcohols present in two natural isomers of RvE3 with four different stereoisomers prepared by total organic synthesis. The complete structures of two natural isomers of RvE3 were determined to be 17R,18S-and 17R,18R-dihydroxy-5Z,8Z,11Z,13E,15E-EPA, respectively. These natural isomers prepared by total organic synthesis displayed a potent anti-inflammatory action by limiting neutrophil infiltrations both in vitro and in vivo. The unnatural stereoisomers were much less active compared with the natural isomers, demonstrating the stereoselective action of RvE3.

本文言語English
ページ(範囲)355-360
ページ数6
ジャーナルJournal of biochemistry
153
4
DOI
出版ステータスPublished - 2013 4月
外部発表はい

ASJC Scopus subject areas

  • 生化学
  • 分子生物学

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