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Reproducible Colonization of Germ-Free Mice With the Oligo-Mouse-Microbiota in Different Animal Facilities.
Eberl, Claudia Ring, Diana Münch, Philipp C Beutler, Markus Basic, Marijana Slack, Emma Caroline Schwarzer, Martin Srutkova, Dagmar Lange, Anna Frick, Julia S
Eberl, Claudia
Ring, Diana
Münch, Philipp C
Beutler, Markus
Basic, Marijana
Slack, Emma Caroline
Schwarzer, Martin
Srutkova, Dagmar
Lange, Anna
Frick, Julia S
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2019-01-01
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Abstract
The Oligo-Mouse-Microbiota (OMM12) is a recently developed synthetic bacterial community for functional microbiome research in mouse models (Brugiroux et al., 2016). To date, the OMM12 model has been established in several germ-free mouse facilities world-wide and is employed to address a growing variety of research questions related to infection biology, mucosal immunology, microbial ecology and host-microbiome metabolic cross-talk. The OMM12 consists of 12 sequenced and publically available strains isolated from mice, representing five bacterial phyla that are naturally abundant in the murine gastrointestinal tract (Lagkouvardos et al., 2016). Under germ-free conditions, the OMM12 colonizes mice stably over multiple generations. Here, we investigated whether stably colonized OMM12 mouse lines could be reproducibly established in different animal facilities. Germ-free C57Bl/6J mice were inoculated with a frozen mixture of the OMM12 strains. Within 2 weeks after application, the OMM12 community reached the same stable composition in all facilities, as determined by fecal microbiome analysis. We show that a second application of the OMM12 strains after 72 h leads to a more stable community composition than a single application. The availability of such protocols for reliable de novo generation of gnotobiotic rodents will certainly contribute to increasing experimental reproducibility in biomedical research.
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Front Microbiol. 2020 Jan 10;10:2999. doi: 10.3389/fmicb.2019.02999. eCollection 2019.
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en
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1664-302X
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Attribution-NonCommercial-ShareAlike 4.0 International