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五倍子对白色念珠菌生物被膜的抑制作用

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目的 研究五倍子对白色念珠菌菌株生物被膜的抑制作用.方法 采用MTT法测定五倍子对生物被膜的形成及成熟生物被膜的抑制作用.采用RT-PCR法测定五倍子对ALS1和CPH1基因表达量的影响.结果 五倍子能显著抑制白色念珠菌生物被膜的形成,其抑制生物被膜形成的最低抑菌浓度(MIC)和最低杀菌浓度(MFC)均为128 mg/mL.五倍子对白色念珠菌的成熟生物被膜也有较强的抑制作用,其抑制成熟生物被膜的MIC为256 mg/mL.五倍子能显著降低白色念珠菌ALS1和CPH1的基因表达量,其中64 mg/mL的五倍子作用白色念珠菌16 h后,与对照组相比,ALS1和CPH1的基因表达量分别降低了79.2%和82.0%.结论 五倍子对白色念珠菌生物被膜的形成和成熟生物被膜均具有显著的抑制作用,其作用机制可能与降低ALS1和CPH1的基因表达量,抑制白色念珠菌的粘附和侵袭有关.
Inhibitory effect of Gallnut on Candida albicans biofilm
Objective To study the inhibitory effect of Gallnut on the biofilm of Candida albicans. Methods MTT assay was used to determine the inhibitory effect of Gallnut on biofilm formation and mature biofilm. RT-PCR was used to determine the effect of Gallnut on the expressions of ALS1 and CPH1 genes. Results Gallnut has a stronger inhibitory effect on Candida albicans biofilm formation, the minimum inhibitory concentration (MIC) and the minimum fungicidal concentration (MFC) for inhibition of biofilm formation both are 128mg/mL. Gallnut also has a strong inhibitory effect on the mature biofilm of Candida albicans, the minimum inhibitory concentration (MIC) is 256mg/mL. Gallnut could significantly reduce the gene expressions of ALS1 and CPH1. Compared with the control group, 64 mg/mL Gallnut act on Candida albicans after 16h, the gene expression of ALS1 and CPH1 decreased by 79.2% and 82.0% respectively. Conclusion Gallnut has a significant inhibitory effect on the formation and maturation of Candida albicans biofilm. The inhibitory effect of Gallnut on the adherence and invasion of Candida albicans is mainly through inhibiting the expressions of ALS1 and CPH1 genes.

GallnutCandida albicansbiofilm

张洺嘉、姜路路、谢明杰

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辽宁师范大学生命科学学院 辽宁省生物技术与分子药物研发重点实验室,辽宁 大连 116081

五倍子 白色念珠菌 生物被膜

辽宁省教育厅科学研究一般项目辽宁省自然科学基金

L201683675201602462

2017

中国生化药物杂志
南京生物化学制药研究所,全国生化制药情报中心站,中国生化制药工业协会,中国药品生物制品检定所

中国生化药物杂志

ISSN:1005-1678
年,卷(期):2017.37(10)
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