Anti-Dengue Virus Constituents from Formosan Zoanthid Palythoa mutuki
2016 (English)In: Marine Drugs, ISSN 1660-3397, E-ISSN 1660-3397, Vol. 14, no 8, 151Article in journal (Refereed) Published
Kaohsiung Med Univ, Grad Inst Nat Prod, Coll Pharm, Kaohsiung 807, Taiwan.;Kaohsiung Med Univ, Dept Biotechnol, Coll Life Sci, Kaohsiung 807, Taiwan.;Kaohsiung Med Univ, Res Ctr Nat Prod & Drug Dev, Kaohsiung 807, Taiwan..
Kaohsiung Med Univ, Grad Inst Nat Prod, Coll Pharm, Kaohsiung 807, Taiwan.;Natl Sun Yat Sen Univ, Dept Marine Biotechnol & Resources, Kaohsiung 804, Taiwan.;Kaohsiung Med Univ Hosp, Ctr Canc, Kaohsiung 807, Taiwan..
Kaohsiung Med Univ, Grad Inst Nat Prod, Coll Pharm, Kaohsiung 807, Taiwan..
Natl Cheng Kung Univ, Inst Basic Med Sci, Coll Med, Tainan 701, Taiwan.;Natl Cheng Kung Univ, Coll Med, Ctr Infect Dis & Signaling Res, Tainan 701, Taiwan..
A new marine ecdysteroid with an alpha-hydroxy group attaching at C-4 instead of attaching at C-2 and C-3, named palythone A (1), together with eight known compounds (2-9) were obtained from the ethanolic extract of the Formosan zoanthid Palythoa mutuki. The structures of those compounds were mainly determined by NMR spectroscopic data analyses. The absolute configuration of 1 was further confirmed by comparing experimental and calculated circular dichroism (CD) spectra. Anti-dengue virus 2 activity and cytotoxicity of five isolated compounds were evaluated using virus infectious system and [3-(4,5-dimethylthiazol-2-yl)5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium, inner salt (MTS) assays, respectively. As a result, peridinin (9) exhibited strong antiviral activity (IC50 = 4.50 +/- 0.46 mu g/mL), which is better than that of the positive control, 2'CMC. It is the first carotene-like substance possessing anti-dengue virus activity. In addition, the structural diversity and bioactivity of the isolates were compared by using a ChemGPS-NP computational analysis. The ChemGPS-NP data suggested natural products with anti-dengue virus activity locate closely in the chemical space.
Place, publisher, year, edition, pages
2016. Vol. 14, no 8, 151
ecdysteroid, Palythoa mutuki, antiviral activity, ChemGPS-NP
IdentifiersURN: urn:nbn:se:uu:diva-307901DOI: 10.3390/md14080151ISI: 000383284700003PubMedID: 27517937OAI: oai:DiVA.org:uu-307901DiVA: diva2:1048786