Methionine adenosyltransferase 1a antisense oligonucleotides activate the liver-brown adipose tissue axis preventing obesity and associated hepatosteatosis.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
01 03 2022
01 03 2022
Historique:
received:
24
07
2020
accepted:
03
02
2022
entrez:
2
3
2022
pubmed:
3
3
2022
medline:
13
4
2022
Statut:
epublish
Résumé
Altered methionine metabolism is associated with weight gain in obesity. The methionine adenosyltransferase (MAT), catalyzing the first reaction of the methionine cycle, plays an important role regulating lipid metabolism. However, its role in obesity, when a plethora of metabolic diseases occurs, is still unknown. By using antisense oligonucleotides (ASO) and genetic depletion of Mat1a, here, we demonstrate that Mat1a deficiency in diet-induce obese or genetically obese mice prevented and reversed obesity and obesity-associated insulin resistance and hepatosteatosis by increasing energy expenditure in a hepatocyte FGF21 dependent fashion. The increased NRF2-mediated FGF21 secretion induced by targeting Mat1a, mobilized plasma lipids towards the BAT to be catabolized, induced thermogenesis and reduced body weight, inhibiting hepatic de novo lipogenesis. The beneficial effects of Mat1a ASO were abolished following FGF21 depletion in hepatocytes. Thus, targeting Mat1a activates the liver-BAT axis by increasing NRF2-mediated FGF21 secretion, which prevents obesity, insulin resistance and hepatosteatosis.
Identifiants
pubmed: 35232994
doi: 10.1038/s41467-022-28749-z
pii: 10.1038/s41467-022-28749-z
pmc: PMC8888704
doi:
Substances chimiques
NF-E2-Related Factor 2
0
Oligonucleotides, Antisense
0
Mat1a protein, mouse
EC 2.5.1.6
Methionine Adenosyltransferase
EC 2.5.1.6
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1096Informations de copyright
© 2022. The Author(s).
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