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Medicinal Chemistry

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ISSN (Print): 1573-4064
ISSN (Online): 1875-6638

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Research Article

Exploring the Molecular Mechanisms of 17β-HSD5-induced Carcinogenicity of Catha edulis via Molecular Modeling Approach

Author(s): Maria Saeed, Sajda Ashraf, Rashad Alsanosi, Hassan A. Alhazmi, Mohammed AlBratty, Asim Najmi, Asaad Khalid* and Zaheer Ul-Haq*

Volume 17, Issue 4, 2021

Published on: 05 October, 2020

Page: [418 - 428] Pages: 11

DOI: 10.2174/1573406416666201005142522

Price: $65

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Abstract

Background: The tradition of khat chewing has been deep-rooted in the African and Arabian Peninsula for centuries. Due to its amphetamine-like psycho-stimulant or euphoric effect, khat has been used by millions in Somalia, Ethiopia, Saudi Arabia and Yemen. The long-term use of khat can induce many major health outcomes, which may be serious and irreversible.

Objective: Prolonged use of khat constituents has been associated with different types of cancers such as prostatic, breast and ovarian cancer. However, it has been very difficult to identify the molecular targets involved in khat carcinogenesis that interact with the Khat constituents by in vitro/in vivo experimental tools.

Methods: In silico tools were used to predict potential targets involved in the carcinogenesis of khat. Pass on-line prediction server was used for the prediction of a potential molecular target for khat constituents. Molecular Dynamics simulation and MM-GBSA calculation of the predicted target were carried out.

Results: Molecular Dynamics simulation and MM-GBSA calculation revealed that among khat constituents, β-sitosterol showed a high binding affinity towards 17β-HSD5. On the other hand, this study highlights for the first time some new interactions, which were observed in the case of cathine, cathinone and nerol during the simulation.

Conclusion: In silico molecular dynamic simulation tools were used for the first time to investigate the molecular mechanism of widely used leaves of psychoactive khat (Catha edulis) constituent. The present study provides deep insight to understand the effect of khat constituents involved in the impairment of the reproductive system and its binding to 17β-HSD5. ADMET profiling also suggested that few khat constituents do not fulfill the requirements of the Lipinski rule of five i.e. poor absorption and blood-brain barrier impermeability.

Keywords: Khat constituents, psychoactive substance, euphoria, 17β-HSD5, MD simulation, MM GB/PBSA, polycystic ovary syndrome.

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