共 39 条
Effect of Nicotinamide Against Candida albicans
被引:29
作者:
Xing, XinRui
[1
]
Liao, ZeBin
[2
,3
]
Tan, Fei
[1
]
Zhu, ZhenYu
[2
]
Jiang, Yuanying
[4
]
Cao, YingYing
[1
]
机构:
[1] Tongji Univ, Shanghai Skin Dis Hosp, Sch Med, Shanghai, Peoples R China
[2] Second Mil Med Univ, Sch Pharm, Shanghai, Peoples R China
[3] Second Mil Med Univ, Fac Naval Med, Dept Radiat Med, Shanghai, Peoples R China
[4] Tongji Univ, Shanghai Peoples Hosp 10, Dept Pharmacol, Sch Med, Shanghai, Peoples R China
基金:
中国国家自然科学基金;
关键词:
nicotinamide;
Candida albicans;
drug resistance;
fluconazole;
GIN4;
HIGH-DOSE NICOTINAMIDE;
IN-VITRO;
KINASE GIN4;
SEPTIN;
PHOSPHORYLATION;
FLUCONAZOLE;
INHIBITION;
FALCIPARUM;
BERBERINE;
RESISTANT;
D O I:
10.3389/fmicb.2019.00595
中图分类号:
Q93 [微生物学];
学科分类号:
071005 ;
100705 ;
摘要:
Nicotinamide (NAM) has a long history in clinical applications and can be safely used for treating various diseases. In recent years, NAM was found to exhibit antimicrobial activities, inhibiting the growth of Plasmodium falciparum, Mycobacterium tuberculosis, and human immunodeficiency virus (HIV). Here we investigated the activity of NAM against Candida albicans, one of the most prevalent human fungal pathogens. Our results showed that NAM exhibited significant antifungal activity against C. albicans, including fluconazole-resistant isolates. NAM could also effectively suppress biofilm formation. In addition, NAM exhibited antifungal activity against non-Candida albicans species and Cryptococcus neoformans. Combination of NAM and fluconazole showed an even strong antifungal activity. The antifungal activity of NAM was further confirmed in a mouse model of disseminated candidiasis. Confocal laser scanning microscopy revealed that NAM increased cell wall beta-glucans exposure and chitin content while decreased mannan level. Furthermore, by screening the C. albicans homozygous deletion mutant library, the C. albicans mutant lacking GIN4, which encodes a septin regulatory protein kinase and is essential for the maintenance of cell wall integrity, was identified to be high sensitive to NAM. These findings suggested that NAM might exhibit antifungal activities through affecting cell wall organization.
引用
收藏
页数:9
相关论文