口腔医学研究 ›› 2020, Vol. 36 ›› Issue (12): 1128-1131.DOI: 10.13701/j.cnki.kqyxyj.2020.12.011

• 牙髓病学研究 • 上一篇    下一篇

粪肠球菌和变异链球菌共培养双菌生物膜性质的初步研究

张梦洁1, 陆伟1, 侯梦瑶2, 姜秀3, 王飞虎1, 陶睿1*   

  1. 1.中国人民解放军联勤保障部队第九〇四医院口腔中心 江苏 无锡 214000;
    2.杭州口腔医院平海院区正畸一科 浙江 杭州 310006;
    3.黄山市人民医院口腔科 安徽 黄山 245000
  • 收稿日期:2020-05-06 出版日期:2020-12-28 发布日期:2020-12-28
  • 通讯作者: *陶睿,E-mail:taoruicn@outlook.com
  • 作者简介:张梦洁(1987~ ),女,安徽人,中级职称,研究方向:口腔微生物致病机理的研究。
  • 基金资助:
    无锡市医学青年人才(编号:QNRC029)

Preliminary Study on Dual-species Biofilm of Enterococcus faecalis and Streptococcus mutans.

ZHANG Mengjie1, LU Wei1, HOU Mengyao2, JIANG Xiu3, WANG Feihu1, TAO Rui1*   

  1. 1. Department of Stomatology, The 904th Hospital of Joint Logistic Support Force of PLA, Wuxi 214000, China;
    2. Department of Orthodontics Division One,Hangzhou Stomatology Hospital,Hangzhou 310006, China;
    3. Department of Stomatology, People's Hospital of Huangshan, Huangshan 245000, China
  • Received:2020-05-06 Online:2020-12-28 Published:2020-12-28

摘要: 目的:研究变异链球菌UA140-mrfp和粪肠球菌ATCC 29212的双菌生物膜形成量和在微流体系统(BioFlux System)中双菌生物膜的结构。方法:变异链球菌UA140-mrfp和粪肠球菌ATCC 29212混合培养后,结晶紫染色检测生物膜量;BioFlux200系统中接种变异链球菌UA140-mrfp和粪肠球菌ATCC 29212至观察区,静置30 min后,在0.8 dyne(达因)剪切力作用下连续培养12 h。在荧光显微镜下观察生物膜结构。结果:变异链球菌和粪肠球菌双菌生物膜量和单菌相比无统计学差异,但在微流体环境下能够形成具有网状分布的双菌生物膜。结论:使用BioFlux微流体系统,能够培养具有三维结构的变异链球菌和粪肠球菌双菌生物膜。

关键词: 微流体, 生物膜, 变异链球菌, 粪肠球菌

Abstract: Objective: To measure the biomass and observe the structure of dual-species biofilm of Streptococcus mutans UA140-mrfp and Enterococcus faecalis ATCC 29212 using BioFlux System. Methods: Biofilm volume was measured by crystalline violet staining after mixed culture of Streptococcus mutans and Enterococcus faecalis. After 30 min standing, dual-species biofilm was cultured in BioFlux200 system under 0.8 dyne continuous shear force for 12 hours. The biofilm structure was observed under fluorescence microscope. Results: The volume of dual-species biofilm was not statistically different from that of mono-species biofilm. However, the dual-species biofilm could form reticulated distribution biofilms in microfluidic environment. Conclusion: Compared with static biofilm models, BioFlux system could form integrated dual-species biofilm.

Key words: microfluidic, biofilm, Streptococcus mutans, Enterococcus faecalis