A comparison between two brine shrimp assays to detect <it>in vitro</it> cytotoxicity in marine natural products

<p>Abstract</p> <p>Background</p> <p>The brine shrimp lethality assay is considered a useful tool for preliminary assessment of toxicity. It has also been suggested for screening pharmacological activities in plant extracts. However, we think that it is necessary to eva...

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Main Authors: Pérez Pilar, Hernández-Inda Zaira L, Carballo José, García-Grávalos María D
Format: Article
Language:English
Published: BMC 2002-09-01
Series:BMC Biotechnology
Online Access:http://www.biomedcentral.com/1472-6750/2/17
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spelling doaj-fce2e3354e284844bd25f6b2ae7aec572020-11-25T03:49:34ZengBMCBMC Biotechnology1472-67502002-09-01211710.1186/1472-6750-2-17A comparison between two brine shrimp assays to detect <it>in vitro</it> cytotoxicity in marine natural productsPérez PilarHernández-Inda Zaira LCarballo JoséGarcía-Grávalos María D<p>Abstract</p> <p>Background</p> <p>The brine shrimp lethality assay is considered a useful tool for preliminary assessment of toxicity. It has also been suggested for screening pharmacological activities in plant extracts. However, we think that it is necessary to evaluate the suitability of the brine shrimp methods before they are used as a general bio-assay to test natural marine products for pharmacological activity.</p> <p>Material and Methods</p> <p>The bioactivity of the isopropanolic (2-PrOH) extracts of 14 species of marine invertebrates and 6 species of macroalgae was evaluated with the shrimp lethality assay (lethality assay), as well as with another assay based on the inhibition of hatching of the cyst (hatchability assay). The extracts were also assayed for cytotoxicity against two human cell lines, lung carcinoma A-549 and colon carcinoma HT-29, in order to assess the sensitivity of the shrimp assays to detect cytotoxic activity.</p> <p>Results</p> <p>Two sponges (<it>Hyatella</it> sp, <it>Dysidea</it> sp.), two gorgonians (<it>Pacifigorgia adamsii</it>, <it>Muricea</it> sp.), one tunicate (<it>Polyclinum laxum</it>), and three echinoderms (<it>Holothuria impatiens</it>, <it>Pseudoconus californica</it> and <it>Pharia pyramidata</it>) showed a strong cytostatic (growth inhibition) and cytotoxic effect. The hatchability assay showed a strong activity in 4 of the species active against the two human cell lines tested (<it>Hyatella</it> sp, <it>Dysidea</it> sp., <it>Pacifigorgia adamsii</it> and <it>Muricea</it> sp.), and the lethality assay also showed a high lethality in 4 of them (<it>Pacifigorgia adamsii</it>, <it>Muricea</it> sp., <it>Polyclinum laxum</it>, and <it>Pharia pyramidata</it>). Each bioassay detected activity in 50% of the species that were considered active against the two human cell lines tested. However, the simultaneous use of both bioassays increased the percentage to 75%.</p> <p>Conclusions</p> <p>Our results seem consistent with the correlation previously established between cytotoxicity and brine shrimp lethality in plant extracts. We suggest using both bioassays simultaneously to test natural marine products for pharmacological activity.</p> http://www.biomedcentral.com/1472-6750/2/17
collection DOAJ
language English
format Article
sources DOAJ
author Pérez Pilar
Hernández-Inda Zaira L
Carballo José
García-Grávalos María D
spellingShingle Pérez Pilar
Hernández-Inda Zaira L
Carballo José
García-Grávalos María D
A comparison between two brine shrimp assays to detect <it>in vitro</it> cytotoxicity in marine natural products
BMC Biotechnology
author_facet Pérez Pilar
Hernández-Inda Zaira L
Carballo José
García-Grávalos María D
author_sort Pérez Pilar
title A comparison between two brine shrimp assays to detect <it>in vitro</it> cytotoxicity in marine natural products
title_short A comparison between two brine shrimp assays to detect <it>in vitro</it> cytotoxicity in marine natural products
title_full A comparison between two brine shrimp assays to detect <it>in vitro</it> cytotoxicity in marine natural products
title_fullStr A comparison between two brine shrimp assays to detect <it>in vitro</it> cytotoxicity in marine natural products
title_full_unstemmed A comparison between two brine shrimp assays to detect <it>in vitro</it> cytotoxicity in marine natural products
title_sort comparison between two brine shrimp assays to detect <it>in vitro</it> cytotoxicity in marine natural products
publisher BMC
series BMC Biotechnology
issn 1472-6750
publishDate 2002-09-01
description <p>Abstract</p> <p>Background</p> <p>The brine shrimp lethality assay is considered a useful tool for preliminary assessment of toxicity. It has also been suggested for screening pharmacological activities in plant extracts. However, we think that it is necessary to evaluate the suitability of the brine shrimp methods before they are used as a general bio-assay to test natural marine products for pharmacological activity.</p> <p>Material and Methods</p> <p>The bioactivity of the isopropanolic (2-PrOH) extracts of 14 species of marine invertebrates and 6 species of macroalgae was evaluated with the shrimp lethality assay (lethality assay), as well as with another assay based on the inhibition of hatching of the cyst (hatchability assay). The extracts were also assayed for cytotoxicity against two human cell lines, lung carcinoma A-549 and colon carcinoma HT-29, in order to assess the sensitivity of the shrimp assays to detect cytotoxic activity.</p> <p>Results</p> <p>Two sponges (<it>Hyatella</it> sp, <it>Dysidea</it> sp.), two gorgonians (<it>Pacifigorgia adamsii</it>, <it>Muricea</it> sp.), one tunicate (<it>Polyclinum laxum</it>), and three echinoderms (<it>Holothuria impatiens</it>, <it>Pseudoconus californica</it> and <it>Pharia pyramidata</it>) showed a strong cytostatic (growth inhibition) and cytotoxic effect. The hatchability assay showed a strong activity in 4 of the species active against the two human cell lines tested (<it>Hyatella</it> sp, <it>Dysidea</it> sp., <it>Pacifigorgia adamsii</it> and <it>Muricea</it> sp.), and the lethality assay also showed a high lethality in 4 of them (<it>Pacifigorgia adamsii</it>, <it>Muricea</it> sp., <it>Polyclinum laxum</it>, and <it>Pharia pyramidata</it>). Each bioassay detected activity in 50% of the species that were considered active against the two human cell lines tested. However, the simultaneous use of both bioassays increased the percentage to 75%.</p> <p>Conclusions</p> <p>Our results seem consistent with the correlation previously established between cytotoxicity and brine shrimp lethality in plant extracts. We suggest using both bioassays simultaneously to test natural marine products for pharmacological activity.</p>
url http://www.biomedcentral.com/1472-6750/2/17
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