Sustained release of a novel anti-quorum-sensing agent against oral fungal biofilms

Mark Feldman, Julia Shenderovich, Abed Al Aziz Al-Quntar, Michael Friedman, Doron Steinberg*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Thiazolidinedione-8 (S-8) has recently been identified as a potential anti-quorum-sensing/antibiofilm agent against bacteria and fungi. Based on these results, we investigated the possibility of incorporating S-8 in a sustained-release membrane (SRM) to increase its pharmaceutical potential against Candida albicans biofilm. We demonstrated that SRM containing S-8 inhibits fungal biofilm formation in a time-dependent manner for 72 h, due to prolonged release of S-8. Moreover, the SRM effectively delivered the agent in its active form to locations outside the membrane reservoir. In addition, eradication of mature biofilm by the SRM containing S-8 was also significant. Of note, S-8-containing SRM affected the characteristics of mature C. albicans biofilm, such as thickness, exopolysaccharide (EPS) production, and morphogenesis of fungal cells. The concept of using an antibiofilm agent with no antifungal activity incorporated into a sustained-release delivery system is new in medicine and dentistry. This concept of an SRM containing a quorum-sensing quencher with an antibiofilm effect could pave the way for combating oral fungal infectious diseases.

Original languageAmerican English
Pages (from-to)2265-2272
Number of pages8
JournalAntimicrobial Agents and Chemotherapy
Issue number4
StatePublished - 1 Apr 2015

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Copyright © 2015, American Society for Microbiology. All Rights Reserved.


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