» Articles » PMID: 37721707

A Minor Groove Binder with Significant Cytotoxicity on Human Lung Cancer Cells: The Potential of Hesperetin Functionalised Silver Nanoparticles

Overview
Journal J Fluoresc
Specialties Biophysics
Chemistry
Date 2023 Sep 18
PMID 37721707
Authors
Affiliations
Soon will be listed here.
Abstract

Natural drug functionalised silver (Ag) nanoparticles (NPs) have gained significant interest in pharmacology related applications due to their therapeutic efficiency. We have synthesised silver nanoparticle using hesperetin as a reducing and capping agent. This work aims to discuss the relevance of the hesperetin functionalised silver nanoparticles (H-AgNPs) in the field of nano-medicine. The article primarily investigates the anticancer activity of H-AgNPs and then their interactions with calf thymus DNA (ctDNA) through spectroscopic and thermodynamic techniques. The green synthesised H-AgNPs are stable, spherical in shape and size of 10 ± 3 nm average diameter. The complex formation of H-AgNPs with ctDNA was established by UV-Visible absorption, fluorescent dye displacement assay, isothermal calorimetry and viscosity measurements. The binding constants obtained from these experiments were consistently in the order of 10 Mol. The melting temperature analysis and FTIR measurements confirmed that the structural alterations of ctDNA by the presence of H-AgNPs are minimal. All the thermodynamic variables and the endothermic binding nature were acquired from ITC experiments. All these experimental outcomes reveal the formation of H-AgNPs-ctDNA complex, and the results consistently verify the minor groove binding mode of H-AgNPs. The binding constant and limit of detection of 1.8 μM found from the interaction studies imply the DNA detection efficiency of H-AgNPs. The cytotoxicity of H-AgNPs against A549 and L929 cell lines were determined by in vitro MTT cell viability assay and lactate dehydrogenase (LDH) assay. The cell viability and LDH enzyme release are confirmed that the H-AgNPs has high anticancer activity. Moreover, the calculated LD50 value for H-AgNPs against lung cancer cells is 118.49 µl/ml, which is a low value comparing with the value for fibroblast cells (269.35 µl/ml). In short, the results of in vitro cytotoxicity assays revealed that the synthesised nanoparticles can be considered in applications related to cancer treatments. Also, we have found that, H-AgNPs is a minor groove binder, and having high DNA detection efficiency.

References
1.
Shan X, Diez-Perez I, Wang L, Wiktor P, Gu Y, Zhang L . Imaging the electrocatalytic activity of single nanoparticles. Nat Nanotechnol. 2012; 7(10):668-72. DOI: 10.1038/nnano.2012.134. View

2.
Li X, Khorsandi S, Wang Y, Santelli J, Huntoon K, Nguyen N . Cancer immunotherapy based on image-guided STING activation by nucleotide nanocomplex-decorated ultrasound microbubbles. Nat Nanotechnol. 2022; 17(8):891-899. PMC: 9378430. DOI: 10.1038/s41565-022-01134-z. View

3.
Gong N, Zhang Y, Teng X, Wang Y, Huo S, Qing G . Proton-driven transformable nanovaccine for cancer immunotherapy. Nat Nanotechnol. 2020; 15(12):1053-1064. PMC: 7719078. DOI: 10.1038/s41565-020-00782-3. View

4.
Yeh Y, Creran B, Rotello V . Gold nanoparticles: preparation, properties, and applications in bionanotechnology. Nanoscale. 2011; 4(6):1871-80. PMC: 4101904. DOI: 10.1039/c1nr11188d. View

5.
Christian P, von der Kammer F, Baalousha M, Hofmann T . Nanoparticles: structure, properties, preparation and behaviour in environmental media. Ecotoxicology. 2008; 17(5):326-43. DOI: 10.1007/s10646-008-0213-1. View