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Anti-proliferative and apoptotic effects of green synthesized silver nanoparticles using Lavandula angustifolia on human glioblastoma cells

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Abstract

In this study, we aimed at the green synthesis of silver nanoparticles (AgNPs) using Lavandula angustifolia extract and the investigation of the anti-proliferative and apoptotic inducing effects of these nanoparticles in the U87MG glioblastoma cancer cell line. Green synthesized silver nanoparticles were characterized by various analytical techniques such as UV–Visible Spectrophotometer (UV–Vis), scanning electron microscopy (SEM) and Energy Dispersive X-ray (EDX). UV–Vis spectroscopy displayed a specific silver plasmon peak at 430 nm. U87MG cells were treated at increased concentrations with Lavandula angustifolia-AgNPs (La-AgNPs) (0–20 µg/mL) for 72 h and the anti-proliferative effects of green synthesized silver nanoparticles on U87MG cells were evaluated by MTT assay. The La- AgNPs induced a statistically significant dose-dependent decrease in proliferation and increased cytotoxicity in U87MG cells. The IC50 value is 7.536 µg/mL. Furthermore, the expression of apoptosis proteins caspase-3, caspase-8 and caspase-9 was analyzed using ELISA and caspase-3 and p53 using western blotting. The results suggest that La-AgNPs induce cell death in U87MG cells through the p53 mediated intrinsic apoptotic pathway. Together, the present findings suggest that La-AgNPs could be considered as a potential option for the treatment of glioblastoma.

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Acknowledgements

This research was supported by the Burdur Mehmet Akif Ersoy University Scientific Research Rrojects Unit [Project number: 0617-YL-19].

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AS and CAA designed the study, performed the synthesis and characterization of nanoparticles, cell culture and MTT assay, drafted the paper, and contributed equally to this work. SP participated in ELISA and Western blot analyses. AS and SP involved in statistical analysis. All authors have read and approved the final manuscript.

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Correspondence to Cigdem Aydin Acar.

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The authors declare that they have no conflicts of interest.

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Simsek, A., Pehlivanoglu, S. & Aydin Acar, C. Anti-proliferative and apoptotic effects of green synthesized silver nanoparticles using Lavandula angustifolia on human glioblastoma cells. 3 Biotech 11, 374 (2021). https://doi.org/10.1007/s13205-021-02923-4

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  • DOI: https://doi.org/10.1007/s13205-021-02923-4

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