Investigating the Dual-Action Potential of (Z)-6-methoxy 2-(naphthalen-1-ylmethylene) Benzofuran-3(2H)-one (AU-23): A Novel Synthetic Aurone Derivative with Antibacterial and Anti-Inflammatory Activ

Indian Journal of Pharmaceutical Education and Research

  • Rabia Mrehil Elsalami1Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Cyberjaya, Cyberjaya, MALAYSIA.
  • Kamal Rullah2Department of Pharmaceutical Chemistry, Drug Discovery and Synthetic Chemistry Research Group, Kulliyyah of Pharmacy, International Islamic University Malaysia, Bandar Indera Mahkota, Kuantan, Pahang, MALAYSIA.
  • Yaman Walid Kassab3Department of Pharmacy practice, College of Pharmacy, National University of Science and Technology, Bousher, Muscat, Sultanate of OMAN.
  • Mohammad Javed Qureshi4Department of Pharmaceutics, College of Pharmacy, National University of Science and Technology, Bousher, Muscat, Sultanate of OMAN.
  • Waqas Ahmad5Discipline of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, MALAYSIA.
  • Mahani Mahadi1Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Cyberjaya, Cyberjaya, MALAYSIA.
  • Masriana Hassan6Department of Pathology, Faculty of Medicine and Health Science, Universiti Putra Malaysia, Serdang, Selangor, MALAYSIA.
  • Noraziah Mohamad Zin7Center for Diagnostic, Therapeutics and Investigative Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, MALAYSIA.
  • Anwar Salm Kalifa Kafo6Department of Pathology, Faculty of Medicine and Health Science, Universiti Putra Malaysia, Serdang, Selangor, MALAYSIA.
  • Chin Chai Yee7Center for Diagnostic, Therapeutics and Investigative Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, MALAYSIA.
  • Najwa Mohamad1Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Cyberjaya, Cyberjaya, MALAYSIA.

Volume 59 Issue 2 Pages 810-825

DOI: 10.5530/ijper.20255518

Abstract

Aim/Background: Aurone is a well-known, naturally occurring, minor flavonoid with significant biological properties. However, their low abundance in nature limits their application in the medical field. In this study, we investigated the antimicrobial and anti-inflammatory properties of a novel synthetic aurone, (Z)-6-methoxy-2-(naphthalen-1-ylmethylene) benzofuran-3(2H)-one (AU-23). Materials and Methods: AU-23 was synthesized via multistep synthesis reactions involving the oxidative cyclization of 2’-hydroxychalcones. AU-23 was tested for antibacterial, minimum inhibitory concentration and antibiofilm activity against several ATCC strains using agar well diffusion, broth-micro dilution and XTT assay methods respectively. Results: At various concentrations, it selectively inhibited the growth of four strains (P. aeruginosa ATCC 9027, methicillin-resistant S. aureus (MRSA) ATCC 33591, methicillin-sensitive Staphylococcus aureus (MSSA) ATCC 25923 and methicillin-resistant S. aureus (MRSA) ATCC 43300). Moreover, it was observed that AU-23 had a bactericidal effect on sensitive strains of MSSA ATCC 25923 and P. aeruginosa ATCC 9027, as well as a bacteriostatic effect on MRSA ATCC 33591 and MRSA ATCC 43300. AU-23 also displayed effective antibiofilm activity against monomicrobial biofilms but not against polymicrobial biofilms. The findings of PCR study revealed that AU-23 downregulates the expression of pro-inflammatory cytokines and mediators (i.e., IL-6, IL-1β, iNOS and TNF-α), as well as crucial pattern recognition receptors (TLR4 and CD14) in LPS-stimulated RAW 264.7 cells. Molecular docking studies demonstrated that the ability of AU-23 to bind to the mouse TLR4/MD-2 complex was comparable to that of dexamethasone. Conclusion: the results of several studies conducted, suggests that AU-23 has the potential to function as an effective dual-action agent with antimicrobial and anti-inflammatory properties.

Keywords

  • Aurone
  • Antimicrobial activity
  • Antibiofilm activity
  • Anti-inflammatory activity
  • Docking study.
IJOPP

Loading…