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Influence of molecular weight fractionation on the antimicrobial and anticancer properties of a fucoidan rich-extract from the macroalgae Fucus vesiculosus
Cabral, Eduarda M. Mondala, Julie Rose Mae Oliveira, Márcia Przyborska, Joanna Fitzpatrick, Stephen Rai, Dilip K. Sivagnanam, Saravana Periaswamy Garcia-Vaquero, Marco O'Shea, Denis Devereux, Michael
Cabral, Eduarda M.
Mondala, Julie Rose Mae
Oliveira, Márcia
Przyborska, Joanna
Fitzpatrick, Stephen
Rai, Dilip K.
Sivagnanam, Saravana Periaswamy
Garcia-Vaquero, Marco
O'Shea, Denis
Devereux, Michael
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2021-09
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Eduarda M. Cabral, Julie Rose Mae Mondala, Márcia Oliveira, Joanna Przyborska, Stephen Fitzpatrick, Dilip K. Rai, Saravana Periaswamy Sivagnanam, Marco Garcia-Vaquero, Denis O'Shea, Michael Devereux, Brijesh K. Tiwari, James Curtin, Influence of molecular weight fractionation on the antimicrobial and anticancer properties of a fucoidan rich-extract from the macroalgae Fucus vesiculosus, International Journal of Biological Macromolecules, Volume 186, 2021, Pages 994-1002, ISSN 0141-8130, https://doi.org/10.1016/j.ijbiomac.2021.06.182.
Abstract
The objective of this study was to investigate the antimicrobial and anticancer properties of a fucoidan extract and subsequent fractions isolated from the macroalgae Fucus vesiculosus. The fractions obtained (>300 kDa, <300 kDa, <100 kDa, <50 kDa and <10 kDa) could inhibit the growth of B. subtilis, E. coli, L. innocua and P. fluorescens when assayed at concentrations between 12,500 and 25,000 ppm. The bacterial growth was monitored by optical density (OD) measurements (600 nm, 24 h) at 30 °C or 37 °C, depending upon on the strain used. The extracted fractions were also tested for cytotoxicity against brain glioblastoma cancer cells using the Alamar Blue assay for 24 h, 48 h and 6 days. The >300 kDa fraction presented the lowest IC50 values (0.052% - 24 h; 0.032% - 6 days). The potential bioactivity of fucoidan as an antimicrobial and anticancer agent was demonstrated in this study. Hence, the related mechanisms of action should be explored in a near future.