Anti-cancer and anti-oxidant properties of ethanolic leaf extract of Thymus vulgaris and its bio-functionalized silver nanoparticles
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This study highlights the anti-oxidant and anti-cancer activities of bio-functionalized Thymus vulgaris silver nanoparticles (TVAgNPs) and bioactive compounds were compared using the human breast cancer T47D cell line. The aqueous ethanolic extract of T. vulgaris evaluated for chemical composition using the gas chromatography–mass spectrometer (GC–MS) analysis. The prepared TVAgNPs were determined by means of UV–Vis spectroscopy, FTIR spectroscopy, zeta potential, scanning electron microscopy, transmission electron microscopy, and energy-dispersed spectroscopy analysis. The T. vulgaris extract and TVAgNPs were studied for their in vitro anti-oxidant property by 2, 2-diphenyl, 1-picryl hydrazyl (DPPH) assay. Microscopic observations indicated spherical shaped and monodispersed nanoparticles and the average size of the nanoparticles was about 30 nm. Regarding the elemental composition profile of the TVAgNPs, the highest signal of silver (89.30%) was detected followed by other elements. An absorption peak was registered at 440 nm according to surface plasmon resonance (SPR) of the TVAgNPs in solution. A zeta potential of fabricated nanoparticles was approximately − 12.6 mV, indicating higher stability of the bio-functionalized TVAgNPs. The T. vulgaris extract and synthesized TVAgNPs were evaluated for their anti-cancer activity using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) assay and Annexin V double staining with propidium iodide (PI) flow cytometric analysis toward T47D cells. The cytotoxicity properties of the bio-functionalized T. vulgaris AgNPs revealed that the sensitivity of T47D human breast cancer cells is high compared with T. vulgaris extract. The Annexin V/PI staining indicated that the fabricated TVAgNPs shows increased apoptosis in T47D cells as compared to untreated cells. Besides, the anti-oxidant activity of the TVAgNPs clarified a higher anti-radical-scavenging activity compared to Thymus vulgaris extract. Our data show that the potential biological activities of the bioactive constituents of T. vulgaris can be enhanced through bio-functionalized T. vulgaris AgNPs due to the bioorganic compounds that exist in the extract.
KeywordsAnti-cancer Anti-oxidant Silver nanoparticles T47D Thymus vulgaris
The authors would like to acknowledge Islamic Azad University, Astaneh Ashrafiyeh Branch (Iran), for financial support of this research.
Compliance with ethical standards
Conflict of interest
All of the authors have declared that no competing interests exist.
- Agili FA (2014) Chemical composition, antioxidant and antitumor activity of Thymus vulgaris L. essential oil. Middle-East J Sci Res 21:1670–1676Google Scholar
- Ahire M, Pardesi K, Bellare J, Dhavale DD, Jabgunde A, Balu A (2012) Synthesis of silver nanoparticles using Dioscorea bulbifera tuber extract and evaluation of its synergistic potential in combination with antimicrobial agents. Int J Nanomed 7:483–496Google Scholar
- Ahmed KBA, Mahapatra SK, Raja MRC, Subramaniam S, Sengan M, Rajendran N, Das SK, Haldar K, Roy S, Sivasubramanian A, Anbazhagan V (2016) Jacalin-capped silver nanoparticles minimize the dosage use of the anticancer drug, shikonin derivatives, against human chronic myeloid leukemia. Rsc Adv 6:18980–18989CrossRefGoogle Scholar
- Arunachalam KD, Arun LB, Annamalai SK, Arunachalam AM (2015) Potential anticancer properties of bioactive compounds of Gymnemasylvestre and its biofunctionalized silver nanoparticles. Int J Nanomed 10:31–41Google Scholar
- Bhuvaneswari R, John Xavier R, Arumugam M (2016) Facile synthesis of multifunctional silver nanoparticles using mangrove plant Excoecaria agallocha L. for its antibacterial, J Parasit Dis 41:180Google Scholar
- Inbathamizh L, Padmini E (2013) Quinic acid as a potent drug candidate for prostate cancer—a comparative pharmacokinetic approach. Asian J Pharm Clin Res 6:106–112Google Scholar
- Kasithevar M, Saravanan M, Prakash P, Kumar H, Ovais M, Barabadi H, Shinwari ZK (2017) Green synthesis of silver nanoparticles using Alysicarpus monilifer leaf extract and its antibacterial activity against MRSA and CoNS isolates in HIV patients. J Interdiscip Nanomed 2:131–141CrossRefGoogle Scholar
- Mohanta YK, Panda SK, Jayabalan R, Sharma N, Bastia AK, Mohanta TK (2017) Antimicrobial, antioxidant and cytotoxic activity of silver nanoparticles synthesized by leaf extract of Erythrina suberosa (Roxb.) Front Mol Biosci 4:14Google Scholar
- Salehi S, Shandiz SAS, Ghanbar F, Darvish MR, Ardestani MS, Mirzaie A, Jafari M (2016b) Phyto-synthesis of silver nanoparticles using Artemisia marschalliana Sprengel aerial parts extract and assessment of their antioxidant, anticancer, and antibacterial properties. Int J Nanomed 11:1835–1846Google Scholar
- Satyavani K, Gurudeeban S, Ramanathan T, Balasubramanian T (2012) Toxicity study of silver nanoparticle synthesis from suaeda monoica on Hep-2 Cell Line. Avicenna J Med Biotech 4:35–39Google Scholar