RRC ID 42040
Author Matsuda H, Morikawa T, Oda M, Asao Y, Yoshikawa M.
Title Potent anti-metastatic activity of dimeric sesquiterpene thioalkaloids from the rhizome of Nuphar pumilum.
Journal Bioorg Med Chem Lett
Abstract The methanolic extract and its alkaloid fraction from the rhizomes of Nuphar pumilum inhibited invasion of B16 melanoma cells across collagen-coated filters in vitro. Dimeric sesquiterpene thioalkaloids with the 6-hydroxyl group, 6-hydroxythiobinupharidine, 6,6'-dihydroxythiobinupharidine, and 6-hydroxythionuphlutine B, showed potent activity with IC(50) values of 0.029, 0.087, and 0.36 microM, respectively, but dimeric sesquiterpene thioalkaloids lacking the 6-hydroxyl group (thiobinupharidine, neothiobinupharidine, syn-thiobinupharidine sulfoxide, thionuphultine B beta-sulfoxide, and neothiobinupharidine beta-sulfoxide) and monomeric sesquiterpene alkaloids (nupharidine, deoxynupharidine, 7-epideoxynupharidine, and nupharolutine) showed weak activity. The alkaloid fraction (20 mg/kg/d, po) and the principal dimeric sesquiterpene thioalkaloid 6-hydroxythiobinupharidine (5 mg/kg/d, po) significantly inhibited lung tumor formation by more than 90% 10 days after injection of B16 melanoma cells in mice.
Volume 13(24)
Pages 4445-9
Published 2003-12-15
DOI 10.1016/j.bmcl.2003.09.019
PII S0960894X03009740
PMID 14643343
MeSH Alkaloids / isolation & purification Alkaloids / pharmacology* Animals Antineoplastic Agents / chemistry Antineoplastic Agents / isolation & purification* Dimerization Female Lung Neoplasms / pathology Lung Neoplasms / prevention & control Lung Neoplasms / secondary Melanoma, Experimental / pathology Mice Mice, Inbred Strains Models, Molecular Neoplasm Invasiveness Neoplasm Metastasis / prevention & control* Nuphar* Rhizome* Sesquiterpenes / isolation & purification* Sesquiterpenes / pharmacology* Structure-Activity Relationship
IF 2.572
Times Cited 36
WOS Category CHEMISTRY, ORGANIC CHEMISTRY, MEDICINAL
Resource
Human and Animal Cells B16 melanoma 4A5(RCB0557)