Investigation of the Inhibition Activity of Aluminium Oxide Nanoparticles for Herpes Simplex Type 1
Several studies have shown that Herpes simplex type 1 )HSV-1 (is one of the viruses resistant to medications, so potential antiherpetic agents need to be evaluated. This study aimed to evaluate the impact of Aluminum Oxide Nanoparticles (Al2O3-NPs) on HSV-1 infection. Characterization of Al2O3-NPs was performed using field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), dynamic light scattering (DLS), and high-resolution transmission electron microscopy (HRTEM). The MTT test was used to investigate the toxicity action of Al2O3-NPs on viable cells. Quantitative Real-Time PCR (qRT-PCR)and TCID50 assays were used to achieve the antiherpetic performance Al2O3-NPs.Indirect immunofluorescence assay (IFA) was performed to determine the inhibitory impact of Al2O3-NPs on viral antigen expression, and acyclovir was utilized as a standard agent in all tests. HSV-1 subjected to Al2O3-NPs at the maximum non-toxic concentration (100 μg / mL) leads to a decrease of 0.1, 0.7, 1.8, and 2.5 log10 TCID50 in the infectious titer relative to virus control (P<0.0001). This concentration of Al2O3-NPs was correlated with 16.9%, 47.1 %, 61.2 %, 72.5 % and 74.6 % inhibition rates, calculated based on HSV-1 viral load compared to virus control. Our results have shown that Al2O3-NPs have a robust antiviral activity against HSV-1. This function demonstrates excellent potential for using Al2O3-NP in topical formulations for treating orolabial or genital herpetic lesions.
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