Effects of silver and gold nanoparticles phytosynthesized with Cornus mas extract on oral dysplastic human cells
Abstract
Background: Oral cancer is highly aggressive due to difficult diagnosis, therapy resistance and increasing frequency; thus finding prevention therapies is very important. Aim: This study evaluates the use of gold and silver nanoparticles (NPs), phyto-synthesized with Cornus mas extract against oral dysplastic lesions. Methods: NPs were characterized by UV–Vis, Fourier-transform infrared spectroscopy, transmission electron microscopy, x-ray diffraction and laser Doppler microelectrophoresis. Biological testing employed two human oral cell lines: gingival fibroblasts and dysplastic keratinocytes and evaluated viability, cell death mechanisms and cellular uptake. Results: NPs induced selective toxic effects against dysplastic cells. p53/BAX/BCL2 activation and PI3K/AKT inhibition led to cell death through necrosis and apoptosis. NPs also induced antioxidant and anti-inflammatory effects. Conclusion: NPs of gold and silver showed promising beneficial effects in the therapy of oral dysplasia.
Papers of special note have been highlighted as: • of interest; •• of considerable interest
References
- 1. . Applications of nanomedicine in oral cancer. Oral Health Dent. Manag. 11(2), 62–68 (2012). • This review synthesizes the research studies about the use of nanoparticles in oral cancer.
- 2. The global incidence of lip, oral cavity, and pharyngeal cancers by subsite in 2012. CA: Cancer J. Clin. 67(1), 51–64 (2017).
- 3. . Global incidence and risk factors of oral cancer. Harefuah 156(10), 645–649 (2017).
- 4. Risk factors of oral cancer: a hospital based case control study. J. Clin. Exp. Dent. 10(4), e396–e401 (2018).
- 5. . Smokeless tobacco (paan and gutkha) consumption, prevalence, and contribution to oral cancer. Epidemiol. Health 39, e2017009 (2017).
- 6. . Nanotechnology in oral cancer: a comprehensive review. J. Oral Maxillofac. Pathol. 21(3), 407–414 (2017). •• Shows the roles of different nanoparticles in the diagnosis and therapy of oral cancer.
- 7. . Nano era of dentistry: an update. Curr. Drug Deliv. 15(2), 186–204 (2018).
- 8. Comparative evaluation by scanning confocal Raman spectroscopy and transmission electron microscopy of therapeutic effects of noble metal nanoparticles in experimental acute inflammation. RSC Adv. 5, 67435–67448 (2015).
- 9. . Gold nanoparticles enlighten the future of cancer theranostics. Int. J. Nanomedicine 12, 6131–6152 (2017).
- 10. Gold nanoparticle mediated phototherapy for cancer. J. Nanomater. 2016, Article ID: 5497136 (2016).
- 11. . Role of gold nanoparticles in early detection of oral cancer. JAOMR 22(1), 30–33 (2010).
- 12. . Surface plasmon resonance scattering and absorption of anti-EGFR antibody conjugated gold nanoparticles in cancer diagnostics: applications in oral cancer. Nano Lett. 5(5), 829–834 (2005).
- 13. . Antibacterial activities of gold and silver nanoparticles against Escherichia coli and bacillus Calmette-Guerin. J. Nanobiotechnology 10, 19 (2012).
- 14. . Cytotoxicity and genotoxicity of silver nanoparticles in the human lung cancer cell line, A549. Arch. Toxicol. 85(7), 743–750 (2011).
- 15. . Biosynthesis, characterization, and evaluation of bioactivities of leaf extract-mediated biocompatible gold nanoparticles from Alternanthera bettzickiana. Biotechnol. Rep. (Amst.) 19, e00268 (2018).
- 16. Molecular mechanisms of cell death: recommendations of the Nomenclature Committee on Cell Death 2018. Cell Death Differ. 25(3), 486–541 (2018). •• Describes the different types of cell death and their underlining mechanisms.
- 17. . Cellular uptake, intracellular trafficking and cytotoxicity of silver nanoparticles. Toxicol. Lett. 213(2), 249–259 (2012).
- 18. Negligible particle-specific toxicity mechanism of silver nanoparticles: the role of Ag+ ion release in the cytosol. Nanomedicine 11(3), 731–739 (2015).
- 19. Potential theranostics application of bio-synthesized silver nanoparticles (4-in-1 system). Theranostics 4(3), 316–335 (2014).
- 20. UV-light mediated green synthesis of silver and gold nanoparticles using Cornelian cherry fruit extract and their comparative effects in experimental inflammation. J. Photochem. Photobiol. B Biol. 191, 26–37 (2019).
- 21. . Effects of naked gold nanoparticles on proinflammatory cytokines mRNA expression in rat liver and kidney. Biomed. Res. Int. 2013, 590730( 2013).
- 22. . Renal tissue alterations were size-dependent with smaller ones induced more effects and related with time exposure of gold nanoparticles. Lipids Health Dis. 10, 163 (2011).
- 23. . Effects of silver nanoparticles on primary cell cultures of fibroblasts and keratinocytes in a wound-healing model. J. Appl. Biomater. Funct. Mater. 14(2), e137–e142 (2016).
- 24. . Effects of nanocrystalline silver (NPI 32101) in a rat model of ulcerative colitis. Dig. Dis. Sci. 52(10), 2732–2742 (2007).
- 25. Topical silver and gold nanoparticles complexed with Cornus mas suppress inflammation in human psoriasis plaques by inhibiting NF-kappaB activity. Exp. Dermatol. 27(10), 1166–1169 (2018).
- 26. . Analysis of total phenols and other oxidation substrates and antioxidants by means of Folin-Ciocalteu reagent. In: Methods in Enzymology (Volume 299). Paker L (Ed.). Academic Press, CA, USA, 152–178 (1999).
- 27. Green synthesis, characterization and anti-inflammatory activity of silver nanoparticles using European black elderberry fruits extract. Colloids Surf. B Biointerfaces 122, 767–777 (2014).
- 28. Gold nanoparticles synthesized with a polyphenols-rich extract from Cornelian cherry (Cornus mas) fruits: effects on human skin cells. J. Nanomater. 2016, 6986370 (2016).
- 29. In vitro studies on the mechanisms involved in chemoprevention using Calluna vulgaris on vascular endothelial cells exposed to UVB. J. Photochem. Photobiol. B Biol. 136, 54–61 (2014).
- 30. Efficiency of photodynamic therapy on WM35 melanoma with synthetic porphyrins: role of chemical structure, intracellular targeting and antioxidant defense. J. Photochem. Photobiol. B Biol. 151, 142–152 (2015).
- 31. . Measurement of protein thiol groups and glutathione in plasma. Methods Enzymol. 233, 380–385 (1994).
- 32. . Biosynthesis of silver nanoparticles using Ligustrum ovalifolium fruits and their cytotoxic effects. Nanomaterials 8(8), 627 (2018).
- 33. . Effects of storage temperature on the total phenolic content of Cornelian cherry (Cornus mas L.) fruits extracts. J. Appl. Bot. Food Qual. 89, 208–211 (2016).
- 34. . Bioactive flavonoids from Cornus mas L. fruits. Mini Rev. Org. Chem. 14, 489–495 (2017).
- 35. . Facile green synthesis of silver nanoparticles using Berberis vulgaris leaf and root aqueous extract and its antibacterial activity. Int. J. Biol. Macromol. 124, 148–154 (2019).
- 36. Nanoshell-mediated near-infrared thermal therapy of tumors under magnetic resonance guidance. Proc. Natl Acad. Sci. USA 100(23), 13549–13554 (2003).
- 37. The effects of silver nanoparticles on behavior, apoptosis and nitro-oxidative stress in offspring Wistar rats. Nanomedicine (Lond.) 12(12), 1455–1473 (2017).
- 38. . Nanoethics: from utopian dreams and apocalyptic nightmares towards a more balanced view. Sci. Eng. Ethics 11(4), 521–533 (2005).
- 39. The effect of Sambucus nigra L. extract and phytosinthesized gold nanoparticles on diabetic rats. Colloids Surf. B Biointerfaces 150, 192–200 (2017).
- 40. . Toxicological effects of silver nanoparticles. Environ. Toxicol. Pharmacol. 40(3), 729–732 (2015).
- 41. . Cell selective response to gold nanoparticles. Nanomedicine 3(2), 111–119 (2007).
- 42. . Silver nanoparticle-mediated cellular responses in various cell lines: an in vitro model. Int. J. Mol. Sci. 17(10), E1603 (2016). •• Reviews the effects and mechanisms of action of silver nanoparticles, depending on size, charge and shape in different cell lines, including epithelial cells.
- 43. . In vitro cytotoxicity assay on gold nanoparticles with different stabilizing agents. J. Nanomater. Article ID, 734398 (2012).
- 44. Size-dependent cytotoxicity of gold nanoparticles. Small 3(11), 1941–1949 (2007).
- 45. . Size-dependent cytotoxicity of silver nanoparticles in human lung cells: the role of cellular uptake, agglomeration and Ag release. Part. Fibre Toxicol. 11, Article number: 11 (2014).
- 46. . Selective cytotoxicity of green synthesized silver nanoparticles against the MCF-7 tumor cell line and their enhanced antioxidant and antimicrobial properties. Int. J. Nanomed. 13, 8013–8024 (2018).
- 47. . Interference of silver, gold, and iron oxide nanoparticles on epidermal growth factor signal transduction in epithelial cells. ACS Nano 5(12), 10000–10008 (2011). • Demonstrates the inhibition of epidermal growth factor signal transduction by gold and silver nanoparticles in human epidermoid carcinoma cells.
- 48. . Elucidating the mechanism of cellular uptake and removal of protein-coated gold nanoparticles of different sizes and shapes. Nano Lett. 7(6), 1542–1550 (2007).
- 49. Shape matters: effects of silver nanospheres and wires on human alveolar epithelial cells. Part. Fibre Toxicol. 8, 425–430 (2011).
- 50. . Silver nanoparticles, ions, and shape governing soil microbial functional diversity: nano shapes micro. Front. Microbiol. 7, 1123 (2016).
- 51. . Cytotoxicity of silver and copper nanoparticles on rainbow trout (Oncorhynchus mykiss) hepatocytes. Environ. Sci. Pollut. Res. Int. 25(1), 908–915 (2018).
- 52. Comparative in vivo assessment of some adverse bioeffects of equidimensional gold and silver nanoparticles and the attenuation of nanosilver's effects with a complex of innocuous bioprotectors. Int. J. Mol. Sci. 14(2), 2449–2483 (2013).
- 53. Silver nanoparticles mediate differential responses in keratinocytes and fibroblasts during skin wound healing. ChemMedChem 5(3), 468–475 (2010).
- 54. Influence of gold nanoparticles on wound healing treatment in rat model: photobiomodulation therapy. Lasers Surg. Med. 49(4), 380–386 (2017).
- 55. . In vitro AuNPs' cytotoxicity and their effect on wound healing. Nanobiomedicine (Rij) 2, 7 (2015).
- 56. . Protein tyrosine kinase 6 protects cells from anoikis by directly phosphorylating focal adhesion kinase and activating AKT. Oncogene 32(36), 4304–4312 (2013).
- 57. Bax assembly into rings and arcs in apoptotic mitochondria is linked to membrane pores. EMBO J. 35(4), 389–401 (2016).
- 58. . Molecular toxicity mechanism of nanosilver. J. Food Drug Anal. 22(1), 116–127 (2014).
- 59. . The roles of autophagy in cancer. Int. J. Mol. Sci. 19(11), E3466 (2018).
- 60. . Residual gammaH2AX foci as an indication of lethal DNA lesions. BMC Cancer 10, 4 (2010).
- 61. Transient DNA damage following exposure to gold nanoparticles. Nanoscale 10(33), 15723–15735 (2018).
- 62. Acute and chronic administration of gold nanoparticles cause DNA damage in the cerebral cortex of adult rats. Mutat. Res. 766–767; 25–30 (2014).
- 63. Gold nanoparticles induce DNA damage in the blood and liver of rats. J. Nanopart. Res. 16, 2727 (2014).
- 64. . Differential effects of silver nanoparticles on DNA damage and DNA repair gene expression in Ogg1-deficient and wild type mice. Nanotoxicology 11(8), 996–1011 (2017).
- 65. . Effects of silver nanoparticles on oxidative DNA damage-repair as a function of p38 MAPK status: a comparative approach using human Jurkat T cells and the nematode Caenorhabditis elegans. Environ. Mol. Mutagen. 55(2), 122–133 (2014).
- 66. . Crucial role of chelatable iron in silver nanoparticles induced DNA damage and cytotoxicity. Redox Biol. 15, 435–440 (2018). • Demonstrates that the silver nanoparticles toxicity is linked to free radicals induced damage through the Fenton reaction.
- 67. . Size-dependent effect of silver nanoparticles on the tumor necrosis factor alpha-induced DNA damage response. Int. J. Mol. Sci. 20(5), E1038 (2019). •• Shows that the oxidative DNA damage induced by TNF-α is modulated by silver nanoparticle size: decreased by small nanoparticles and increased by big nanoparticles, in epithelial lung cells.