Secondary Metabolites from Vietnamese Marine Invertebrates with Activity against Trypanosoma brucei and T. cruzi

Bibliographic Details
Title: Secondary Metabolites from Vietnamese Marine Invertebrates with Activity against Trypanosoma brucei and T. cruzi
Authors: Nguyen Phuong Thao, Joo Hwan No, Bui Thi Thuy Luyen, Gyongseon Yang, Soo Young Byun, Junghyun Goo, Kyung Tae Kim, Nguyen Xuan Cuong, Nguyen Hoai Nam, Chau Van Minh, Thomas J. Schmidt, Jong Seong Kang, Young Ho Kim
Source: Molecules, Vol 19, Iss 6, Pp 7869-7880 (2014)
Publisher Information: MDPI AG, 2014.
Publication Year: 2014
Collection: LCC:Organic chemistry
Subject Terms: soft coral, echinoderm, marine natural product, Trypanosoma brucei, Trypanosoma cruzi, neglected tropical diseases, Organic chemistry, QD241-441
More Details: Marine-derived natural products from invertebrates comprise an extremely diverse and promising source of the compounds from a wide variety of structural classes. This study describes the discovery of five marine natural products with activity against Trypanosoma species by natural product library screening using whole cell in vitro assays. We investigated the anti-trypanosomal activity of the extracts from the soft corals and echinoderms living in Vietnamese seas. Of the samples screened, the methanolic extracts of several marine organisms exhibited potent activities against cultures of Trypanosoma brucei and T. cruzi (EC50 < 5.0 μg/mL). Among the compounds isolated from these extracts, laevigatol B (1) from Lobophytum crassum and L. laevigatum, (24S)-ergost-4-ene-3-one (2) from Sinularia dissecta, astropectenol A (3) from Astropecten polyacanthus, and cholest-8-ene-3β,5α,6β,7α-tetraol (4) from Diadema savignyi showed inhibitory activity against T. brucei with EC50 values ranging from 1.57 ± 0.14 to 14.6 ± 1.36 μM, relative to the positive control, pentamidine (EC50 = 0.015 ± 0.003 μM). Laevigatol B (1) and 5α-cholest-8(14)-ene-3β,7α-diol (5) exhibited also significant inhibitory effects on T. cruzi. The cytotoxic activity of the pure compounds on mammalian cells was also assessed and found to be insignificant in all cases. This is the first report on the inhibitory effects of marine organisms collected in Vietnamese seas against Trypanosoma species responsible for neglected tropical diseases.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1420-3049
Relation: http://www.mdpi.com/1420-3049/19/6/7869; https://doaj.org/toc/1420-3049
DOI: 10.3390/molecules19067869
Access URL: https://doaj.org/article/2c093cb5e39c4d458f2663b27154af8f
Accession Number: edsdoj.2c093cb5e39c4d458f2663b27154af8f
Database: Directory of Open Access Journals
More Details
ISSN:14203049
DOI:10.3390/molecules19067869
Published in:Molecules
Language:English