Preparation and preservation of viable Akkermansia muciniphila cells for therapeutic interventions.

Abstract:

:The anaerobic gut bacterium Akkermansia muciniphila is a well-characterised member of the mucosal microbiota and has shown to be a gut symbiont in human. A. muciniphila has been negatively associated with obesity and its associated metabolic disorders in various human cohorts while treatment with A. muciniphila cells reversed highfat diet-induced obesity and its associated metabolic disorders in mouse models. Therefore, administration of A. muciniphila has been suggested as a possible new therapeutic treatment for these omnipresent diseases. Here we describe a potentially scalable workflow for the preparation and preservation of high numbers of viable cells of A. muciniphila obtained from 1 l laboratory scale growth under strict anaerobic conditions for therapeutic interventions. This resulted in viable A. muciniphila cells with high yields and very high stability, with up to 97.9±4.5% survival for a time period of 1 year at -80 °C in glycerol-amended medium. Moreover, various quality assessment and control procedures were developed to ensure the use of viable cells of A. muciniphila. Several microscopic, culturing, and molecular approaches were applied to monitor the presence, abundance and recovery of A. muciniphila before, during, and after its administration to high-fat treated mice. We show that viable A. muciniphila cells can be recovered from caecal and colon content (up to 1×1010 cells/g), testifying for the efficiency of the described workflow.

journal_name

Benef Microbes

journal_title

Beneficial microbes

authors

Ouwerkerk JP,Aalvink S,Belzer C,De Vos WM

doi

10.3920/BM2016.0096

subject

Has Abstract

pub_date

2017-04-26 00:00:00

pages

163-169

issue

2

eissn

1876-2883

issn

1876-2891

journal_volume

8

pub_type

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