Scalarane-type sesterterpenoids from the marine sponge lendenfeldia sp. Alleviate inflammation in human neutrophils

Bo Rong Peng, Kuei Hung Lai, Gene Hsiang Lee, Steve Sheng Fa Yu, Chang Yih Duh, Jui Hsin Su, Li Guo Zheng, Tsong Long Hwang, Ping Jyun Sung

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Sponge-derived scalaranes are remarkable sesterterpenoids previously found to exhibit profound inhibitory effects against neutrophilic inflammation. In our current work, we constructed the metabolomic profile of marine sponge Lendenfeldia sp. for the first time using a tandem mass spectrometry (MS/MS) molecular networking approach. The results highlighted the rich chemical diversity of these scalaranes, motivating us to conduct further research to discover novel scalaranes targeting neutrophilic inflammation. MS-and NMR-assisted isolation and elucidation led to the discovery of seven new homoscalaranes, lendenfeldaranes K–Q (1–7), characterized by methylation at C-24, together with five known derivatives, lendenfeldarane B (8), 25-nor-24-methyl-12,24-dioxoscalar-16-en-22-oic acid (9), 24-methyl-12,24,25-trioxoscalar-16-en-22-oic acid (10), felixin B (11), and 23-hydroxy-20-methyldeoxoscalarin (12). Scalaranes 1–4 and 6–12 were assayed against superoxide anion generation and elastase release, which represented the neutrophilic inflammatory responses of respiratory burst and degranulation, respectively. The results indicated that 1–3 and 6–12 exhibited potential anti-inflammatory activities (IC50 for superoxide anion scavenging: 0.87~6.57 µM; IC50 for elastase release: 1.12~6.97 µM).

Original languageEnglish
Article number561
JournalMarine Drugs
Volume19
Issue number10
DOIs
Publication statusPublished - Oct 2021

Keywords

  • Anti-neutrophilic inflammation
  • Homoscalarane
  • Lendenfeldia
  • Molecular networking

ASJC Scopus subject areas

  • Drug Discovery

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