Activity of Sanguinarine Against Candida Albicans Biofilms

Overview

Journal Antimicrob Agents Chemother

Publisher American Society for Microbiology

Specialty Pharmacology

Date 2017 Feb 23

PMID 28223387

Citations 34

Authors

Hua Zhong

Dan-Dan Hu

Gan-Hai Hu

Juan Su

Shuang Bi

Zhuo-Er Zhang

Zheng Wang

Ri-Li Zhang

Zheng Xu

Yuan-Ying Jiang

Yan Wang

Affiliations

Soon will be listed here.

Abstract

biofilms show resistance to many clinical antifungal agents and play a considerable contributing role in the process of infections. New antifungal agents against biofilms are sorely needed. The aim of this study was to evaluate sanguinarine (SAN) for its activity against biofilms and explore the underlying mechanism. The MIC of SAN was 3.2 μg/ml, while ≥0.8 μg/ml of SAN could suppress biofilms. Further study revealed that ≥0.8 μg/ml of SAN could decrease cellular surface hydrophobicity (CSH) and inhibited hypha formation. Real-time reverse transcription-PCR (RT-PCR) results indicated that the exposure of to SAN suppressed the expression of some adhesion- and hypha-specific/essential genes related to the cyclic AMP (cAMP) pathway, including , , , , and Consistently, the endogenous cAMP level of was downregulated after SAN treatment, and the addition of cAMP rescued the SAN-induced filamentation defect. In addition, SAN showed relatively low toxicity to human umbilical vein endothelial cells, the 50% inhibitory concentration (IC) being 7.8 μg/ml. Collectively, the results show that SAN exhibits strong activity against biofilms, and the activity was associated with its inhibitory effect on adhesion and hypha formation due to cAMP pathway suppression.

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