A cyclopentanediol analogue selectively suppresses the conserved innate immunity pathways, Drosophila IMD and TNF-α pathways

Mizuki Sekiya, Kazunori Ueda, Kaori Okazaki, Haruhisa Kikuchi, Shoichiro Kurata, Yoshiteru Oshima

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Innate immunity comprises evolutionarily conserved self-defense mechanisms against microbial infections. In mammals, innate immunity interacts with adaptive immunity and has a key role in the regulated immune response. Therefore, innate immunity is a pharmaceutical target for the development of immune regulators. Using Drosophila ex vivo culture systems, we isolated a cyclopentanediol analogue from Aspergillus sp. as an immunosuppressive substance. This compound selectively suppressed activation of the IMD pathway in Drosophila in vivo and the target molecules of the compound lie between the Imd adaptor protein and dTAK1 kinase in the IMD pathway. In human cells, the compound suppressed TNF-α, but not IL-1β, stimulation-induced activation of NF-κB, suggesting that its target molecules are upstream of TAK1 in mammalian innate immunity.

Original languageEnglish
Pages (from-to)2165-2174
Number of pages10
JournalBiochemical Pharmacology
Volume75
Issue number11
DOIs
Publication statusPublished - 2008 Jun 1

Keywords

  • Cyclopentanediol analogue
  • Drosophila
  • Immune suppressor
  • Innate immunity
  • NF-κB
  • TAK1 kinase

ASJC Scopus subject areas

  • Biochemistry
  • Pharmacology

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