The gut microbiota instructs the hepatic endothelial cell transcriptome.
Hepatology
Microbiome
Transcriptomics
Journal
iScience
ISSN: 2589-0042
Titre abrégé: iScience
Pays: United States
ID NLM: 101724038
Informations de publication
Date de publication:
22 Oct 2021
22 Oct 2021
Historique:
received:
14
01
2021
revised:
15
07
2021
accepted:
06
09
2021
entrez:
8
10
2021
pubmed:
9
10
2021
medline:
9
10
2021
Statut:
epublish
Résumé
The gut microbiota affects remote organ functions but its impact on organotypic endothelial cell (EC) transcriptomes remains unexplored. The liver endothelium encounters microbiota-derived signals and metabolites via the portal circulation. To pinpoint how gut commensals affect the hepatic sinusoidal endothelium, a magnetic cell sorting protocol, combined with fluorescence-activated cell sorting, was used to isolate hepatic sinusoidal ECs from germ-free (GF) and conventionally raised (CONV-R) mice for transcriptome analysis by RNA sequencing. This resulted in a comprehensive map of microbiota-regulated hepatic EC-specific transcriptome profiles. Gene Ontology analysis revealed that several functional processes in the hepatic endothelium were affected. The absence of microbiota influenced the expression of genes involved in cholesterol flux and angiogenesis. Specifically, genes functioning in hepatic endothelial sphingosine metabolism and the sphingosine-1-phosphate pathway showed drastically increased expression in the GF state. Our analyses reveal a prominent role for the microbiota in shaping the transcriptional landscape of the hepatic endothelium.
Identifiants
pubmed: 34622147
doi: 10.1016/j.isci.2021.103092
pii: S2589-0042(21)01060-9
pmc: PMC8479694
doi:
Types de publication
Journal Article
Langues
eng
Pagination
103092Informations de copyright
© 2021 The Author(s).
Déclaration de conflit d'intérêts
The authors declare no competing interests.
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