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Novel gold nanoparticles reduced by Sargassum glaucescens: preparation, characterization and anticancer activity


Citation

Ajdari, Zahra and Rahman, Heshu and Shameli, Kamyar and Abdullah, Rasedee and Abd Ghani, Maaruf and Yeap, Swee and Abbasiliasi, Sahar and Ajdari, Daniel and Ariff, Arbakariya (2016) Novel gold nanoparticles reduced by Sargassum glaucescens: preparation, characterization and anticancer activity. Molecules, 21 (3). art. no. 123. pp. 1-17. ISSN 1420-3049

Abstract / Synopsis

The current study investigated the anticancer properties of gold nanoparticles (SG-stabilized AuNPs) synthesized using water extracts of the brown seaweed Sargassum glaucescens (SG). SG-stabilized AuNPs were characterized by ultraviolet-visible spectroscopy, transmission and scanning electron microscopy, and energy dispersive X-ray fluorescence spectrometry. The SG-stabilized AuNPs were stable and small at 3.65 ± 1.69 nm in size. The in vitro anticancer effect of SG-stabilized AuNPs was determined on cervical (HeLa), liver (HepG2), breast (MDA-MB-231) and leukemia (CEM-ss) cell lines using fluorescence microscopy, flow cytometry, caspase activity determination, and MTT assays. After 72 h treatment, SG-stabilized AuNPs was shown to be significant (p < 0.05) cytotoxic to the cancer cells in a dose- and time-dependent manner. The IC50 values of SG-stabilized AuNPs on the HeLa, HepG2, CEM-ss, MDA-MB-231 cell lines were 4.75 ± 1.23, 7.14 ± 1.45, 10.32 ± 1.5, and 11.82 ± 0.9 μg/mL, respectively. On the other hand, SG-stabilized AuNPs showed no cytotoxic effect towards the normal human mammary epithelial cells (MCF-10A). SG-stabilized AuNPs significantly (p < 0.05) arrest HeLa cell cycle at G2/M phase and significantly (p < 0.05) activated caspases-3 and -9 activities. The anticancer effect of SG-stabilized AuNPs is via the intrinsic apoptotic pathway. The study showed that SG-stabilized AuNPs is a good candidate to be developed into a chemotherapeutic compound for the treatment of cancers especially cervical cancer.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Faculty of Veterinary Medicine
Institute of Bioscience
DOI Number: https://doi.org/10.3390/molecules21030123
Publisher: MDPI
Keywords: Sargassum glaucescens; Anticancer properties; Cervical cancer; Gold nanoparticles; In vitro study
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 26 Oct 2017 18:05
Last Modified: 22 Jan 2018 15:55
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/molecules21030123
URI: http://psasir.upm.edu.my/id/eprint/53399
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