Anti-inflammatory Constituents of the Red Alga Gracilaria verrucosa and Their Synthetic Analogues
摘要:
A chemical study on the anti-inflammatory components of the red alga Gracilaria verrucosa led to the isolation of new 11 -deoxyprostaglandins (1-4), a ceramide (5), and a C-16 keto fatty acid (6), along with known oxygenated fatty acids (7-14). Their structures were elucidated on the basis of NMR and MS data. The absolute configurations of compounds 1-5 were determined by Mosher's method. The anti-inflammatory activity of the isolated compounds (1-14) was evaluated by determining their inhibitory effects on the production of pro-inflammatory mediators (NO, IL-6, and TNF-alpha) in lipopolysaccharide (LPS)-activated RAW 264.7 murine macrophage cells. Compounds 9 and 10 exhibited the most potent activity. In the evaluation of these two compounds and derivatized analogues (15-40), the anti-inflammatory activity was enhanced in some synthetic analogues. These enone fatty acids were investigated as potential anti-inflammatory leads for the first time.
Anti-inflammatory Constituents of the Red Alga <i>Gracilaria verrucosa</i> and Their Synthetic Analogues
作者:Hung The Dang、Hye Ja Lee、Eun Sook Yoo、Pramod B. Shinde、Yoon Mi Lee、Jongki Hong、Dong Kyoo Kim、Jee H. Jung
DOI:10.1021/np070452q
日期:2008.2.1
A chemical study on the anti-inflammatory components of the red alga Gracilaria verrucosa led to the isolation of new 11 -deoxyprostaglandins (1-4), a ceramide (5), and a C-16 keto fatty acid (6), along with known oxygenated fatty acids (7-14). Their structures were elucidated on the basis of NMR and MS data. The absolute configurations of compounds 1-5 were determined by Mosher's method. The anti-inflammatory activity of the isolated compounds (1-14) was evaluated by determining their inhibitory effects on the production of pro-inflammatory mediators (NO, IL-6, and TNF-alpha) in lipopolysaccharide (LPS)-activated RAW 264.7 murine macrophage cells. Compounds 9 and 10 exhibited the most potent activity. In the evaluation of these two compounds and derivatized analogues (15-40), the anti-inflammatory activity was enhanced in some synthetic analogues. These enone fatty acids were investigated as potential anti-inflammatory leads for the first time.
Synthesis and biological evaluations of marine oxohexadecenoic acids: PPARα/γ dual agonism and anti-diabetic target gene effects
作者:Thomas Sæther、Steinar M. Paulsen、Jørn E. Tungen、Anders Vik、Marius Aursnes、Torgeir Holen、Trond Vidar Hansen、Hilde I. Nebb
DOI:10.1016/j.ejmech.2018.06.034
日期:2018.7
(10E)-9-oxohexadec-10-enoic acid (2) from the marine algae Chaetoceros karianus. Herein we report the total synthesis, pharmacological characterization, and biologicalevaluations of these naturally occurring oxo-fatty acids (oFAs). The syntheses of 1 and 2 afforded sufficient material for extensive biologicalevaluations. Both oFAs show an appreciable dose-dependent activation of PPARα and -γ, with EC50 values in