alexa In-vitro Antiviral Activity of a Novel Phthalic Acid Ester Derivative Isolated from the Bangladeshi Mangrove Fern Acrostichum aureum | OMICS International | Abstract
ISSN: 1948-5964

Journal of Antivirals & Antiretrovirals
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Research Article

In-vitro Antiviral Activity of a Novel Phthalic Acid Ester Derivative Isolated from the Bangladeshi Mangrove Fern Acrostichum aureum

Shaikh J Uddin1,2, Jayaram Bettadapura3 , Patrice Guillon3 , Darren Grice I3,4, Suresh Mahalingam3 and Evelin Tiralongo1,5*

1School of Pharmacy, Griffith University, Australia

2 Pharmacy Discipline, Khulna University, Bangladesh

3 Institute for Glycomics, Griffith University, Australia

4 School of Medical Science, Griffith University, Australia

5 Griffith Health Institute, Griffith University, Australia

*Corresponding Author:
Dr. EvelinTiralongo
School of Pharmacy, Griffith University
Gold Coast campus, Queensland 4222, Australia
Tel: + 61 7 5552 7098
Fax: + 61 7 5552 8804
E-mail: [email protected]

Received Date: October 05, 2013; Accepted Date: October 29, 2013; Published Date: October 31, 2013

Citation: Uddin SJ, Bettadapura J, Guillon P, Darren Grice I, Mahalingam S, et al. (2013) In-vitro Antiviral Activity of a Novel Phthalic Acid Ester Derivative Isolated from the Bangladeshi Mangrove Fern Acrostichumaureum. J Antivir Antiretrovir 5:139-144. doi: 10.4172/jaa.1000078

Copyright: © 2013 Uddin SJ, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Background: Over the past century dengue (DENV2), chikungunya (CHIKV) and human parainfluenza (hPiV3) viruses have profoundly impacted on human morbidity, mortality and the economy worldwide. Current therapy options to treat infections of these viruses have severe limitations leading to a continued search for novel drug candidates. Acrostichum aureum L. (Pteridaceae) is a mangrove fern, that has been used as a traditional medicine in Bangladesh and other various countries for a variety of diseases including infection.
Objectives: Isolation and structural elucidation of novel antiviral secondary metabolites from the methanol extract of the aerial parts of A. aureum.
Materials and methods: The novel phthalate acid ester was isolated (HPLC) and structurally elucidated using 1D and 2D NMR, MS and other spectroscopic methods. The compound was tested for antiviral activity against DENV2 andhPiV3in Vero cells using the fluorescent focus (FFA) assay and against CHIKV virus in LLC-MK2 cells using the plaque-forming unit assay (PFU). The activity of the isolated compound was further compared with its known derivative.
Results: In this study, we report on the isolation of a novel phthalic acid ester, 2’’-(methoxycarbonyl)-5’’- methylpentyl 2’-methylhexyl phthalate from the aerial parts of the Bangladeshi mangrove fern Acrostichumaureum and its in vitro antiviral activity. The novel phthalate showed antiviral activity against dengue virus, human parainfluenza virus and chikungunya. The most potent activity was recorded against hPiV3 (EC50 29.4 μM) and was slightly higher than the activity determined for the positive control BCX 2798 (EC50 44 μM). Cellulose acetate phthalate was also evaluated for antiviral activity against these viruses for the first time and was found to be inactive. Both compounds were found to be non-toxic against Vero and LLC-MK2 cells.
Conclusion: This study shows that some selected phthalates have potent antiviral activity and should be further investigated as potential novel antiviral agents.

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