Emodin modulates gut microbial community and triggers intestinal immunity
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Date
2022
Journal Title
Journal ISSN
Volume Title
Publisher
John Wiley & Sons Ltd
Abstract
BACKGROUND: The gut microbiota (GM) plays an important role in human health and is being investigated as a possible target
for new therapies. Although there are many studies showing that emodin can improve host health, emodin–GM studies are
scarce. Here, the effects of emodin on the GM were investigated in vitro and in vivo.
RESULTS: In vitro single bacteria cultivation showed that emodin stimulated the growth of beneficial bacteria Akkermansia,
Clostridium, Roseburia, and Ruminococcus but inhibited major gut enterotypes (Bacteroides and Prevotella). Microbial
community analysis from a synthetic gut microbiome model through co-culture indicated the consistent GM change by emodin.
Interestingly, emodin stimulated Clostridium and Ruminococcus (which are related to Roseburia and Faecalibacterium) in a mice
experiment and induced anti-inflammatory immune cells, which may correlate with its impact on specific gut bacteria.
CONCLUSION: Emodin (i) showed similar GM changes in monoculture, co-culture, and in an in vivo mice experiment and
(ii) simulated regulatory T-cell immune responses in vivo. This suggest that emodin may be used to modulate the GM and
improve health.
Description
Journal article
Keywords
Emodin, Gut microbiome, MiSeq, T regulatory cell
Citation
10.1002/jsfa.12221