Evaluating live microbiota biobanking using an ex vivo microbiome assay and metaproteomics
| Autor: | Xu Zhang, Krystal Walker, Janice Mayne, Leyuan Li, Zhibin Ning, Alain Stintzi, Daniel Figeys |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Gut Microbes, Vol 14, Iss 1 (2022) |
| Druh dokumentu: | article |
| ISSN: | 1949-0976 1949-0984 19490976 |
| DOI: | 10.1080/19490976.2022.2035658 |
| Popis: | Biobanking of live microbiota is becoming indispensable for mechanistic and clinical investigations of drug–microbiome interactions and fecal microbiota transplantation. However, there is a lack of methods to rapidly and systematically evaluate whether the biobanked microbiota maintains their cultivability and functional activity. In this study, we use a rapid ex vivo microbiome assay and metaproteomics to evaluate the cultivability and the functional responses of biobanked microbiota to treatment with a prebiotic (fructo-oligosaccharide, FOS). Our results indicate that the microbiota cultivability and their functional responses to FOS treatment were well maintained by freezing in a deoxygenated glycerol buffer at −80°C for 12 months. We also demonstrate that the fecal microbiota is functionally stable for 48 hours on ice in a deoxygenated glycerol buffer, allowing off-site fecal sample collection and shipping to laboratory for live microbiota biobanking. This study provides a method for rapid evaluation of the cultivability of biobanked live microbiota. Our results show minimal detrimental influences of long-term freezing in deoxygenated glycerol buffer on the cultivability of fecal microbiota. |
| Databáze: | Directory of Open Access Journals |
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