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Archives of Pharmacal Research

, Volume 39, Issue 10, pp 1482–1489 | Cite as

Synergic effect of combination of glycyrol and fluconazole against experimental cutaneous candidiasis due to Candida albicans

  • Zheong-Imm Rhew
  • Yongmoon HanEmail author
Research Article

Abstract

In this study, we investigated the anti-fungal activity of glycyrol, a coumarine isolated from licorice (Glycyrrhizae Radix), in a murine model of cutaneous candidiasis caused by Candida albicans. Compared to the infected sites, located on the mice’s back, of the untreated control mice, the infected sites treated with glycyrol had reduced CFU (colony forming unit) values up to 60 and 85.5 % at 20 and 40 μg/mouse of glycyrol, respectively (P < 0.01). The antifungal activity of glycyrol was synergistically increased when glycyrol (10 μg/mouse) was combined with fluconazole (10 μg/mouse), demonstrating that the combination therapy is approximately 4 times more effective than fluconazole alone at 20 μg/mouse (P < 0.01). Additionally, the combination activity was 1.65 times greater than the antifungal activity of fluconazole alone at 40 μg/mouse (P < 0.05). In seeking glycyrol’s antifungal mechanism, we determined that glycyrol inhibited hyphal induction and cell wall adherence of C. albicans. Thus, it is very likely that, by damaging the cell wall, glycyrol helps fluconazole invade C. albicans more readily and attack fluconazole’s target in the fungus membrane. In summary, our data indicate that glycyrol may contribute to the development of a novel agent that possesses antifungal activity against cutaneous candidiasis.

Keywords

Glycyrol Antifungal Cutaneous candidiasis Fluconazole Synergic Combination Mechanism 

Notes

Acknowledgments

We would like to thank Dr. Jue-Hee Lee and Ms. Jue-Young Lee for providing experimental techniques. We would also like to thank Dr. Bruce Granger who helped revise and better the manuscript.

Compliance with ethical standards

Conflict of interest

We, the authors, do not have any conflict of interest.

Supplementary material

12272_2016_824_MOESM1_ESM.doc (27 kb)
Supplementary material 1 (DOC 27 kb)

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Copyright information

© The Pharmaceutical Society of Korea 2016

Authors and Affiliations

  1. 1.Department of ImmunoMicrobiology, College of PharmacyDongduk Women’s UniversitySeoulKorea

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