title: Triterpene glycosides with in vitro anti-inflammatory activity from Cyclamen repandum tubers.
abstract: A new triterpene glycoside, repandoside (1) was isolated together with six known saponins (2-7) from the methanol extract of Cyclamen repandum tubers. The isolated saponins were characterized by high resolution mass spectrometry and both 1D and 2D NMR experiments. The in vitro effect of saponins on LPS-induced IL-8 and TNF-alpha mRNA level (by quantitative RT-PCR) and protein release (by ELISA) was evaluated in human THP-1 macrophages. We found that compounds 1 (repandoside), 2 (deglucocyclamin) and 4 (anagalloside B) at 100 microM inhibited the LPS-induced IL-8 and TNF-alpha expressions.
authors.affiliation: Department of Pharmaceutical Sciences, University of Padova, Italy. stefano.dallacqua@unipd.it
authors.forename: Stefano
authors.initials: S
authors.lastname: Dall'Acqua
authors.forename: Ignazio
authors.initials: I
authors.lastname: Castagliuolo
authors.forename: Paola
authors.initials: P
authors.lastname: Brun
authors.forename: Federica
authors.initials: F
authors.lastname: Ditadi
authors.forename: Giorgio
authors.initials: G
authors.lastname: Palù
authors.forename: Gabbriella
authors.initials: G
authors.lastname: Innocenti
mesh_terms: D000893:Anti-Inflammatory Agents / Q000494:pharmacology*; D002478:Cells, Cultured; D031824:Cyclamen / Q000737:chemistry*; D004797:Enzyme-Linked Immunosorbent Assay; D006027:Glycosides / Q000494:pharmacology*; D006801:Humans; D066298:In Vitro Techniques; D016209:Interleukin-8 / Q000235:genetics / Q000378:metabolism; D008070:Lipopolysaccharides / Q000494:pharmacology; D008264:Macrophages / Q000187:drug effects*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000494:pharmacology*; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D014315:Triterpenes / Q000494:pharmacology*; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics / Q000378:metabolism
chemical_list: D000893:Anti-Inflammatory Agents; D006027:Glycosides; D016209:Interleukin-8; D008070:Lipopolysaccharides; D010936:Plant Extracts; D012333:RNA, Messenger; D014315:Triterpenes; D014409:Tumor Necrosis Factor-alpha; C550231:repandoside