Microbe and host interaction in gastrointestinal homeostasis.
16S rRNA gene sequencing
Antibiotics
Gut barrier permeability
Gut-brain axis
Inbred strain
Journal
Psychopharmacology
ISSN: 1432-2072
Titre abrégé: Psychopharmacology (Berl)
Pays: Germany
ID NLM: 7608025
Informations de publication
Date de publication:
May 2019
May 2019
Historique:
received:
12
10
2018
accepted:
01
03
2019
pubmed:
23
3
2019
medline:
29
10
2019
entrez:
23
3
2019
Statut:
ppublish
Résumé
Researchers in psychiatry and neuroscience are increasingly recognizing the importance of gut-brain communication in mental health. Both genetics and environmental factors influence gut microbiota composition and function. This study examines host-microbe signaling at the gastrointestinal barrier to identify bottom-up mechanisms of microbiota-brain communication. We examined differences in gut microbiota composition and fecal miRNA profiles in BALB/c and C57BL/6 mice, in relation to gastrointestinal homeostasis and evaluated the response to perturbation of the gut microbiota by broad-spectrum antibiotic treatment. Differences in the gut microbiota composition between BALB/c and C57BL/6 mice, evaluated by fecal 16S rRNA gene sequencing, included significant differences in genera Prevotella, Alistipes, Akkermansia, and Ruminococcus. Significant differences in fecal miRNA profiles were determined using the nCounter NanoString platform. A BLASTn analysis identified conserved fecal miRNA target regions in bacterial metagenomes with 14 significant correlations found between fecal miRNA and predicted taxa relative abundance in our dataset. Treatment with broad-spectrum antibiotics for 2 weeks resulted in a host-specific physiological response at the gastrointestinal barrier including a decrease in barrier permeability in BALB/c mice and alterations in the expression of barrier regulating genes in both strains. Genera Parabacteroides and Bacteroides were associated with changes in barrier function. The results of this study provide insight into how specific taxa influence gut barrier integrity and function. More generally, these data in the context of recent published studies makes a significant contribution to our understanding of host-microbe interactions providing new knowledge that can be harnessed by us and others in future mechanistic studies.
Identifiants
pubmed: 30900006
doi: 10.1007/s00213-019-05218-y
pii: 10.1007/s00213-019-05218-y
pmc: PMC6599184
doi:
Substances chimiques
RNA, Ribosomal, 16S
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1623-1640Références
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