Lichenochemical Analysis and Cytotoxicity of Diploschistes ocellatus (Fr.) Norman

Document Type : Original paper

Authors

1 Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.

2 Department of Pharmacognosy and Pharmaceutical Biotechnology, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran.

3 Iranian Research Organization for Science and Technology (IROST) Tehran, Iran.

4 Department of Pharmacognosy, Faculty of Pharmacy, Islamic Azad University, Ayatollah Amoli Branch, Amol, Iran.

5 Persian Medicine and Pharmacy Research Center, Tehran University of Medical Sciences, Tehran, Iran.

6 Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran.

7 Department of Pharmacology, Faculty of Medicine, Yasuj University of Medical Sciences, Yasuj, Iran.

8 Medicinal Plants Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.

9 Department of Pharmacognosy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.

10 Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC, Canada.

Abstract

Background and objectives: Diploschistes ocellatus (Fr.) Norman is a valuable lichen possessing various biological properties which has been traditionally used by indigenous people in southwest of Iran in the treatment of different disorders. The aim of the current study was to evaluate cytotoxicity of different fractions of D. ocellatus against breast cancer cell lines through MTT assay, as well as lichenochemical analysis of the most potent fraction. Also, ducking study was performed to investigate the isolated compounds-protein interactions. Methods: In this work, aqueous, acetone, chloroform, ethyl acetate, and methanol fractions of D. ocellatus were evaluated against three breast cancer cell lines (MCF-7, T-47D, and MDA-MB-231) via MTT assay. Furthermore, docking was performed using the routine method and default parameters of the AutoDock 4.2 software. Results:  The acetone fraction depicted the most potent cytotoxicity and was candidate for lichenochemical analysis, leading to the isolation and identification of stictic acid and 2-(7'-hydroxy-3,5,6,8-tetramethyl-9-oxooxonan-2-yl) propanoic acid. Docking study of isolated compounds based on the inhibition of survivin, revealed desired interactions with that of amino acid residues. Conclusion: Based on the obtained results, D. ocellatus can be considered as a natural source of biologically active compounds and complementary studies are in high demand.

Keywords

Main Subjects


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