Using a Model of Germ-Free Animals to Study the Impact of Gut Microbiome in Research: A Step by Step Sterility Setting and Management
2020
Odile Gabay | Jonathan Vicenty | Dylan Smith | Linda Tiffany | Jill Ascher | Tina Curry | John Dennis | Kathleen A. Clouse
The particularly unique composition of the gut microbiota has the potential to influence the health or disease status of animal and human hosts. Altering the homeostasis of the host-bacteria could lead to changes in gut flora that result in disease or activation of a specific immunological response, which could explain the variations observed in patient responses to current therapies. A standardized model is crucial for studying the influence of the gut microbiota on therapeutic modalities. A step by step mouse model and sterility management system that compares a control strain of C57BL/6 mice to the established C57BL/6 germ-free (GF) strain has been developed. The GF BL/6 mouse phenotype is well established, and the anatomical differences between the GF and control mice were evident in this model. This method could be applied to research studies investigating the microbiome impact, the response to various therapies, or disease transfer via fecal transplants. A standardized sterility maintenance method is crucial in this context.
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