Defective HNF4alpha-dependent gene expression as a driver of hepatocellular failure in alcoholic hepatitis.
Adult
Aged
Animals
Biopsy
Chromatin Assembly and Disassembly
DNA Methylation
Disease Progression
Epigenesis, Genetic
Female
Gene Expression Profiling
Gene Expression Regulation
Hepatitis, Alcoholic
/ genetics
Hepatocyte Nuclear Factor 4
/ genetics
Hepatocytes
/ pathology
Humans
Liver
/ cytology
Male
Middle Aged
Polymorphism, Genetic
Sequence Analysis, RNA
Transforming Growth Factor beta1
/ genetics
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
16 07 2019
16 07 2019
Historique:
received:
09
07
2018
accepted:
10
06
2019
entrez:
18
7
2019
pubmed:
18
7
2019
medline:
18
12
2019
Statut:
epublish
Résumé
Alcoholic hepatitis (AH) is a life-threatening condition characterized by profound hepatocellular dysfunction for which targeted treatments are urgently needed. Identification of molecular drivers is hampered by the lack of suitable animal models. By performing RNA sequencing in livers from patients with different phenotypes of alcohol-related liver disease (ALD), we show that development of AH is characterized by defective activity of liver-enriched transcription factors (LETFs). TGFβ1 is a key upstream transcriptome regulator in AH and induces the use of HNF4α P2 promoter in hepatocytes, which results in defective metabolic and synthetic functions. Gene polymorphisms in LETFs including HNF4α are not associated with the development of AH. In contrast, epigenetic studies show that AH livers have profound changes in DNA methylation state and chromatin remodeling, affecting HNF4α-dependent gene expression. We conclude that targeting TGFβ1 and epigenetic drivers that modulate HNF4α-dependent gene expression could be beneficial to improve hepatocellular function in patients with AH.
Identifiants
pubmed: 31311938
doi: 10.1038/s41467-019-11004-3
pii: 10.1038/s41467-019-11004-3
pmc: PMC6635373
doi:
Substances chimiques
Hepatocyte Nuclear Factor 4
0
NR2A3 protein, human
0
TGFB1 protein, human
0
Transforming Growth Factor beta1
0
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
3126Subventions
Organisme : Medical Research Council
ID : MR/R014019/1
Pays : United Kingdom
Organisme : NIDDK NIH HHS
ID : R01 DK101426
Pays : United States
Organisme : NIAAA NIH HHS
ID : R01 AA021171
Pays : United States
Organisme : NIAAA NIH HHS
ID : U01 AA018663
Pays : United States
Organisme : NIDDK NIH HHS
ID : R01 DK062277
Pays : United States
Organisme : NIAAA NIH HHS
ID : R37 AA021171
Pays : United States
Organisme : NIDDK NIH HHS
ID : T32 DK007052
Pays : United States
Organisme : NIDDK NIH HHS
ID : R01 DK116993
Pays : United States
Organisme : Medical Research Council
ID : MR/K001949/1
Pays : United Kingdom
Organisme : NIDDK NIH HHS
ID : R01 DK114012
Pays : United States
Organisme : NIAAA NIH HHS
ID : R01 AA023781
Pays : United States
Organisme : Medical Research Council
ID : MR/R023026/1
Pays : United Kingdom
Organisme : NIAAA NIH HHS
ID : U01 AA021908
Pays : United States
Organisme : NIDDK NIH HHS
ID : P30 DK120531
Pays : United States
Organisme : Medical Research Council
ID : MR/M003132/1
Pays : United Kingdom
Organisme : NIDDK NIH HHS
ID : R01 DK109365
Pays : United States
Organisme : NCATS NIH HHS
ID : UH3 TR000503
Pays : United States
Organisme : NIAAA NIH HHS
ID : U01 AA026972
Pays : United States
Commentaires et corrections
Type : ErratumIn
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