Anti-Inflammatory Dembranoids from the Soft Coral Lobophytum crassum.

Mar Drugs

National Museum of Marine Biology & Aquarium, Pingtung 94450, Taiwan.

Published: October 2017

AI Article Synopsis

  • Cembrane-type diterpenoids are natural products commonly found in soft corals, and the study focused on identifying anti-inflammatory compounds from a specific wild-type soft coral.
  • Two new compounds, lobophyolide A and B, were discovered alongside five previously known cembranoids, with their structures confirmed through NMR and MS analyses.
  • The newly isolated compounds showed significant anti-inflammatory effects by reducing IL-12 and NO production in LPS-activated dendritic cells, suggesting potential for therapeutic use.

Article Abstract

Cembrane-type diterpenoids are among the most frequently encountered natural products from the soft corals of the genus . In the course of our investigation to identify anti-inflammatory constituents from a wild-type soft coral , two new cembranoids, lobophyolide A () and B (), along with five known compounds (-), were isolated. The structures of these natural products were identified using NMR and MS spectroscopic analyses. Compound was found to possess the first identified -epoxylactone group among all cembrane-type diterpenoids. The in vitro anti-inflammatory effect of compounds 1- was evaluated. The results showed that compounds 1- not only reduced IL-12 release, but also attenuated NO production in LPS-activated dendritic cells. Our data indicated that the isolated series of cembrane-type diterpenoids demonstrated interesting structural features and anti-inflammatory activity which could be further developed into therapeutic entities.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666433PMC
http://dx.doi.org/10.3390/md15100327DOI Listing

Publication Analysis

Top Keywords

cembrane-type diterpenoids
12
soft coral
8
natural products
8
anti-inflammatory
4
anti-inflammatory dembranoids
4
dembranoids soft
4
coral lobophytum
4
lobophytum crassum
4
crassum cembrane-type
4
diterpenoids frequently
4

Similar Publications

Anti-biofouling marine diterpenoids from Okinawan soft corals.

Biofouling

January 2025

The United Graduate School of Agricultural Sciences, Kagoshima University, Kagoshima, Japan.

Article Synopsis
  • Soft corals have potential pharmaceutical applications, particularly for their antiproliferative and anti-inflammatory properties, with the Alcyoniidae family being a notable source of bioactive terpenoids.
  • Despite significant research, their effectiveness against biofouling, specifically against mussels, has not been thoroughly investigated.
  • This study successfully isolates a new diterpenoid and 15 known compounds, evaluates their chemical structures, and assesses their anti-biofouling capabilities and toxicities, highlighting the promise of these natural compounds as eco-friendly antifouling agents.
View Article and Find Full Text PDF

A detailed chemical investigation of the Hainan soft coral Lobophytum crassum led to the identification of a class of polyoxygenated cembrane-type macrocyclic diterpenes (1-28), including three new flexible cembranoids, lobophycrasins E-G (2-4), and twenty-five known analogues. Their structures were elucidated by combining extensive spectroscopic data analysis, quantum mechanical-nuclear magnetic resonance (QM-NMR) methods, the modified Mosher's method, X-ray diffraction analysis, and comparison with data reported in the literature. Bioassays revealed that sixteen cembranoids inhibited the proliferation of H1975, MDA-MB231, A549, and H1299 cells.

View Article and Find Full Text PDF

Boswellia carterii (BC) resins plants have a long historical background as a treatment for inflammation, as indicated by information originating from multiple countries. Twenty-seven diterpenoids have been identified in ethyl acetate and total methanol BC, comprising seventeen boscartins of the cembrane-type diterpenoids and ten boscartols of the prenylaromadendrane-type diterpenoids. Moreover, twenty-one known triterpenoids have also been found, encompassing nine tirucallane-type, six ursane-type, four oleanane-type, and two lupane-type.

View Article and Find Full Text PDF

Cembranolides are characteristic metabolites in marine soft corals, with complex structures and widespread biological activities. However, seldom has an intensive pharmacological study been done for these intriguing marine natural products. In this work, systematic chemical investigation was performed on by HSQC-based small molecule accurate recognition technology (SMART), resulting in the isolation and identification of 31 cembrane-type diterpenoids, including six new ones.

View Article and Find Full Text PDF

Five new characteristic cembrane-type diterpenoids (olibacartiols A-E, 1-5) were acquired from the gum resin of Boswellia carterii. The structures of these diterpenoids were characterized by detailed spectroscopic analysis, and compounds 1-3 were unambiguously confirmed by single-crystal X-ray diffraction experiments. The anti-inflammatory activities of the isolated compounds were evaluated using LPS-induced BV2 cell model and compounds 2-5 showed moderate NO inhibitory effects with IC values of 8.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!