In vitro anti-adenoviral activities of ethanol extract, fractions, and main phenolic compounds of pomegranate (Punica granatum L.) peel

Karimi, Ali and Moradi, Mohammad-Taghi and Rabiei, Mohammad and Alidadi, Somayeh (2020) In vitro anti-adenoviral activities of ethanol extract, fractions, and main phenolic compounds of pomegranate (Punica granatum L.) peel. Antiviral Chemistry and Chemotherapy, 28. p. 204020662091657. ISSN 2040-2066

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Official URL: http://doi.org/10.1177/2040206620916571

Abstract

Background: Adenovirus causes a number of diseases in human, and can cause serious infection in severely immunosuppressed individuals. Despite the seriousness of adenovirus infection, there is no definitely approved anti-adenoviral therapy. Many studies have shown that compounds derived from medicinal plants have antiviral activity. Therefore, this study evaluated in vitro anti-adenoviral activity of ethanol extract, fractions, and main phenolic compounds of pomegranate peel. Methods: The ethanol extract of pomegranate peel was prepared with maceration method and fractionated by consecutive liquid/liquid partition. The cytotoxic and anti-adenovirus activities of the extract, fractions, and main phenolic compounds (ellagic acid, punicalagin and gallic acid) were evaluated on Hep-2 cell line using MTT assay. Inhibitory effect on adsorption and post-adsorption phases of the virus replication cycle was also evaluated. Results: Pomegranate peel extract had a desirable effect against adenovirus with IC50 of 5.77 µg/mL and selectivity index of 49.9. Among the fractions and compounds, the n-butanol fraction and gallic acid had the highest anti-adenoviral activity with IC50 of 2.16 µg/mL and 4.67 µM and selectivity indices of 122.5 and 10.5, respectively. The crude extract, n-butanol fraction and gallic acid inhibited the virus replication in post-adsorption phase (p < 0.01). Conclusion: Pomegranate peel extract, especially its n-butanol fraction, could serve as a new promising anti-adenovirus agent due to high inhibitory effect against adenovirus replication. The effect of the n-butanol fraction may be related to the synergistic effect or other compounds of this fraction. Further understanding of the bioassay guided isolation of natural compounds of this fraction seems essential.

Item Type: Article
Subjects: QV pharmacology > QV 767 Traditional Pharmaceutics
Divisions: Reserach Vice-Chancellar Department > Cellular and Molecular Research Center
Depositing User: zeynab . bagheri
Date Deposited: 19 Jul 2020 06:30
Last Modified: 19 Jul 2020 06:30
URI: http://eprints.skums.ac.ir/id/eprint/8615

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