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A Bioactive Resveratrol Trimer from the Stem Bark of the Sri Lankan Endemic Plant Vateria copallifera.
Samaradivakara, Saroopa P; Samarasekera, Radhika; Handunnetti, Shiroma M; Weerasena, O V D S Jagathpriya; Al-Hamashi, Ayad A; Slama, James T; Taylor, William R; Alhadidi, Qasim; Shah, Zahoor A; Perera, Lalith; Tillekeratne, L M Viranga.
Afiliação
  • Samaradivakara SP; Institute of Biochemistry, Molecular Biology and Biotechnology , University of Colombo , 90, Cumaratunga Munidasa Mawatha , Colombo 03 , Sri Lanka.
  • Samarasekera R; Industrial Technology Institute , 363, Bauddhaloka Mawatha , Colombo 07 , Sri Lanka.
  • Handunnetti SM; Institute of Biochemistry, Molecular Biology and Biotechnology , University of Colombo , 90, Cumaratunga Munidasa Mawatha , Colombo 03 , Sri Lanka.
  • Weerasena OVDSJ; Institute of Biochemistry, Molecular Biology and Biotechnology , University of Colombo , 90, Cumaratunga Munidasa Mawatha , Colombo 03 , Sri Lanka.
  • Perera L; Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences , National Institutes of Health, Department of Health and Human Services , Research Triangle Park , Durham , North Carolina 27709-2233 , United States.
J Nat Prod ; 81(8): 1693-1700, 2018 08 24.
Article em En | MEDLINE | ID: mdl-30040425
A new resveratrol trimer, vateriferol (1), having four cis-oriented methine protons and constituting four contiguous stereocenters, was isolated from the bark extract of Vateria copallifera by bioassay-guided fractionation using a combination of normal, reversed phase, and size exclusion column chromatography. The structure was established based on its spectroscopic data. Vateriferol (1) was evaluated in vitro for its antioxidant capacity, enzyme inhibitory activity, growth inhibitory activity on a number of cancer cell lines, neuroprotective activity, and anti-inflammatory activity. Vateriferol (1) exhibited AChE inhibitory activity (IC50 8.4 ± 0.2 µM), ORAC activity (2079 ± 0.20 TE/g), and neuroprotective activity at 1.5 µM using PC12 cells deprived of oxygen and glucose and lowered NO levels in lipopolysaccharide-stimulated SIM-A9 microglial cells at 14.7 and 73.6 µM. Vateriferol (1) exhibited weak cytotoxic potency (<50% growth inhibition) against the tested cell lines at 147.2 µM.
Assuntos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Dipterocarpaceae / Resveratrol Limite: Animals País como assunto: Asia Idioma: En Ano de publicação: 2018 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Dipterocarpaceae / Resveratrol Limite: Animals País como assunto: Asia Idioma: En Ano de publicação: 2018 Tipo de documento: Article