Investigating the Dual-Action Potential of (Z)-6-methoxy 2-(naphthalen-1-ylmethylene) Benzofuran-3(2H)-one (AU-23): a novel synthetica aurone derivative with antibacterial and anti-inflammatory activity

Elsalami, Rabia Mrehil and Rullah, Kamal and Mohamad, Najwa (2025) Investigating the Dual-Action Potential of (Z)-6-methoxy 2-(naphthalen-1-ylmethylene) Benzofuran-3(2H)-one (AU-23): a novel synthetica aurone derivative with antibacterial and anti-inflammatory activity. Indian Journal of Pharmaceutical Education and Research, 59 (2). pp. 810-825. ISSN 0019-5464

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Official URL: https://www.ijper.org/article/59/2/810

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.

Item Type:	Article (Journal)
Subjects:	R Medicine > RS Pharmacy and materia medica > RS403 Materia Medica-Pharmaceutical Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Pharmacy > Department of Pharmaceutical Chemistry
Depositing User:	Dr Kamal Rullah
Date Deposited:	21 Sep 2026 01:49
Last Update:	21 Sep 2026 01:49
Queue Number:	2026-09-Q5147
URI:	http://irep.iium.edu.my/id/eprint/131324
Indexed In:	WOS and SCOPUS

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