title: Further study on anti-inflammatory oxygenated steroids from the octocoral Dendronephthya griffini.
abstract: Five new steroids, namely griffinisterones F-I (1-4) and griffinipregnone (5) have been isolated from the octocoral Dendronephthya griffini. The structures of these compounds were elucidated by extensive spectroscopic analysis. Compounds 1-3 were found to significantly inhibit the accumulation of the pro-inflammatory iNOS protein of the LPS-stimulated RAW264.7 macrophage cells at 10 microM. At the same concentrations 2 also could significantly inhibit the accumulation of the pro-inflammatory COX-2 protein.
authors.affiliation: Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan, ROC.
authors.forename: Chih-Hua
authors.initials: CH
authors.lastname: Chao
authors.forename: Zhi-Hong
authors.initials: ZH
authors.lastname: Wen
authors.forename: Jui-Hsin
authors.initials: JH
authors.lastname: Su
authors.forename: I-Ming
authors.initials: IM
authors.lastname: Chen
authors.forename: Ho-Cheng
authors.initials: HC
authors.lastname: Huang
authors.forename: Chang-Feng
authors.initials: CF
authors.lastname: Dai
authors.forename: Jyh-Horng
authors.initials: JH
authors.lastname: Sheu
mesh_terms: D000818:Animals; D037421:Anthozoa / Q000737:chemistry*; D000893:Anti-Inflammatory Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D002478:Cells, Cultured; D051546:Cyclooxygenase 2 / Q000378:metabolism; D005938:Glucocorticoids / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D008070:Lipopolysaccharides / Q000494:pharmacology; D008264:Macrophages / Q000187:drug effects / Q000378:metabolism; D009682:Magnetic Resonance Spectroscopy; D051379:Mice; D015394:Molecular Structure; D052247:Nitric Oxide Synthase Type II / Q000378:metabolism
chemical_list: D000893:Anti-Inflammatory Agents; D005938:Glucocorticoids; D008070:Lipopolysaccharides; D052247:Nitric Oxide Synthase Type II; C077623:Ptgs2 protein, mouse; D051546:Cyclooxygenase 2