Polyvinyl Alcohol Capped Silver Nanostructures for Fortified Apoptotic Potential Against Human Laryngeal Carcinoma Cells Hep-2 Using Extremely-Low Frequency Electromagnetic Field

Hany G Attia,1 Mai Abdelhalim Hamouda,2 Saeed Alasmari,3 Dalia F El-Telbany,4 Zaenah Zuhair Alamri,5 Safa H Qahl,5 Mohammad Y Alfaifi,6 Majid Mohammad Al-Sawahli,7 Sara Abd El Wahed8 1Department of Pharmacognosy, College of Pharmacy, Najran University, Najran, Saudi Arabia; 2Department of Oral Pathology, Faculty of Dentistry, King Salman International University, El-Tur, Egypt; 3Department of Biology, College of Science and Arts, Najran University, Najran 1988, Saudi Arabia; 4Department of Pharmaceutics, Faculty of Pharmacy, Modern University for Technology and Information (MTI), Cairo, Egypt; 5Department of Biological Science, College of Science, University of Jeddah, Jeddah, Saudi Arabia; 6Department of Biology, College of Science, King Khalid University, Abha, Saudi Arabia; 7Department of Pharmaceutics, College of Pharmacy, The Islamic University, Najaf, Iraq; 8Department of Oral Pathology, Faculty of Dentistry, The British University in Egypt, Cairo, EgyptCorrespondence: Majid Mohammad Al-Sawahli, Department of Pharmaceutics, College of Pharmacy, The Islamic University, Najaf, Iraq, Tel +201119925299, Email [email protected] Hany G Attia, Department of Pharmacognosy, College of Pharmacy, Najran University, Najran, Saudi Arabia, Tel +966555857605, Email [email protected]: : Polyvinyl alcohol-capped silver nanostructures (cAgNSs) were investigated in order to enhance the cytotoxicity, pro-apoptotic, and oxidant patterns of in human laryngeal carcinoma Hep-2 cells by employing a 50 mT electromagnetic field (LEMF) for 30 min.Methods: Wet chemical reduction was used to synthesize the cAgNSs, and after they had been capped with polyvinyl alcohol, they were specifically examined for particle size analysis and structural morphology. To visualize how the silver may attach to the protein targets, a molecular docking study was conducted. Estimation of cytotoxicity, cell cycle progression supported by mRNA expression of three apoptotic-promoting genes and one apoptotic-resisting.Results: Particle size analysis results were a mean particle size of 157.3± 0.5 nm, zeta potential value of − 29.6 mV± 1.5 mV, and polydispersity index of 0.31± 0.05. Significantly reduction of IC50 against Hep-2 cells by around 6-fold was concluded. Also, we obtained suppression of the proliferation of Hep-2 cells, especially in the G0/G1 and S phases. Significant enhanced mRNA expression revealed enhanced induced CASP3, p53, and Beclin-1 mediated pro-apoptosis and induced NF-κB mediated autophagy in Hep-2 cells. Augmented levels of GR, ROS and MDA as oxidative stress biomarkers were also obtained. HE staining of Hep-2 cells exposed to cAgNSs and LEMF confirmed the enhanced apoptotic potential comparatively.Conclusion: By conclusion, the developed nano-sized structures with the aid of extremely-low frequency electromagnetic field were successful to fortify the anti-cancer profile of cAgNSs in Hep-2 cells. Keywords: electromagnetic field, silver nanoparticles, apoptosis, laryngeal carcinoma