J Mycol Med:新型抗菌膜剂可有效对抗白色念珠菌

2018-04-09 MedSci MedSci原创

针对念珠菌感染所形成的生物膜的治疗仍是目前所面临的一大难题。为了克服这个问题,研究人员不断寻找各种来源的新型抗菌膜剂。本研究调查了(1)-N-2-甲氧基苄基-1,10-菲咯啉溴化物(FEN)对白色念珠菌的体外抗菌活性。使用MTT(3-(4-5-二甲基噻唑-2-基)2,5-二苯基四唑鎓溴化物)还原测定确定最小生物膜抑制浓度(MBIC)和最小生物膜减少浓度(MBRC)。使用扫描电子显微镜(SEM)观察

针对念珠菌感染所形成的生物膜的治疗仍是目前所面临的一大难题。为了克服这个问题,研究人员不断寻找各种来源的新型抗菌膜剂。本研究调查了(1)-N-2-甲氧基苄基-1,10-菲咯啉溴化物(FEN)对白色念珠菌的体外抗菌活性。

使用MTT(3-(4-5-二甲基噻唑-2-基)2,5-二苯基四唑鎓溴化物)还原测定确定最小生物膜抑制浓度(MBIC)和最小生物膜减少浓度(MBRC)。使用扫描电子显微镜(SEM)观察生物膜。

结果显示,该新化合物可抑制80%的白色念珠菌生物膜生长,MBIC80范围为0.5-2.0μg/mL。通过定义6.25--12.5μg/ mL的MBRC50范围证实了FEN减少50%的预形成的生物膜的能力。为减少80%的预形成生物膜需要更高浓度>200μg/mL。此外,SEM图像显示暴露于FEN的白色念珠菌其生物膜基质发生破坏。

综上所述,该研究结果表明(1)-N-2-甲氧基苄基-1,10-菲咯啉溴化物或可作为抗白色念珠菌的新型抗菌膜剂。

原始出处:

Nuryastuti T, Setiawati S, et al., Antibiofilm activity of (1)-N-2-methoxybenzyl-1,10-phenanthrolinium bromide against Candida albicans. J Mycol Med. 2018 Mar 3. pii: S1156-5233(17)30267-6. doi: 10.1016/j.mycmed.2017.12.010.

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    2018-04-11 guihongzh
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