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Published on: March 9, 2019
Anticancer potential of nanogold conjugated toxin GNP-NN-32 from Naja naja venom
Saurabh S Attarde1, Sangeeta V Pandit2
1Evolutionary Venomics Laboratory, Centre for Ecological Sciences, Indian Institute of Science, Bangalore, Karnataka, India.
Background:
Cancer is the second most common fatal disease in the world, behind cardiovascular disorders in the first place. It accounts for around 0.3 million deaths per year in India due to the lack of proper diagnostic facilities, prevention and treatment. Current therapeutic methods do not provide adequate protection and affect normal cells along with cancerous ones. Thus, there is a need for some alternative therapeutic strategy, preferably from natural products, which have been traditionally used for treatment of various diseases in the country.
Methods:
In this study, we have conjugated purified NN-32 toxin from Naja naja venom with gold nanoparticles and its anticancer potential was evaluated against human breast cancer cell lines. UV-Vis spectroscopy, dynamic light scattering, transmission electron microscopy, atomic force microscopy and zeta potential analysis were the techniques used for characterization of GNP-NN-32.
Results:
GNP-NN-32 showed dose- and time-dependent cytotoxicity against breast cancer cell lines (MCF-7 and MDA-MB-231). NN-32 and GNP-NN-32 induced apoptosis in both breast cancer cell lines. The results of CFSE cell proliferation study revealed that NN-32 and GNP-NN-32 arrested cell division in both MCF-7 and MDA-MB-231 cell lines resulting in inhibition of proliferation of these cancer cells.
Conclusion:
GNP-NN-32 showed an anticancer potential against human breast cancer cell lines. Analysis of detailed chemical characterization along with its cytotoxic property might help to perceive a new dimension of the anti-cancer potential of GNP-NN-32 that will enhance its biomedical function in near future.
Insights
Gold nanoparticles conjugated with NN-32 toxin (GNP-NN-32) show significant anticancer potential against human breast cancer cells. This novel conjugate effectively induces apoptosis and inhibits cell division, offering a promising natural product-based therapeutic strategy.
Area of Science:
- Biochemistry
- Nanotechnology
- Oncology
Background:
- Cancer is a leading global cause of death, with limited effective treatments.
- Current cancer therapies lack specificity and harm healthy cells.
- Natural products offer a promising avenue for developing alternative cancer treatments.
Purpose of the Study:
- To conjugate NN-32 toxin from Naja naja venom with gold nanoparticles (GNP-NN-32).
- To evaluate the anticancer potential of GNP-NN-32 against human breast cancer cell lines.
Main Methods:
- Characterization of GNP-NN-32 using UV-Vis spectroscopy, dynamic light scattering, transmission electron microscopy, atomic force microscopy, and zeta potential analysis.
- Assessment of cytotoxicity, apoptosis induction, and cell proliferation inhibition in MCF-7 and MDA-MB-231 breast cancer cell lines.
Main Results:
- GNP-NN-32 demonstrated dose- and time-dependent cytotoxicity against human breast cancer cell lines.
- Both NN-32 and GNP-NN-32 induced apoptosis and arrested cell division, inhibiting cancer cell proliferation.
Conclusions:
- GNP-NN-32 exhibits significant anticancer potential against human breast cancer.
- Further characterization and understanding of its cytotoxic properties may enhance its future biomedical applications.
