Ducheix S, Montagner A, Polizzi A, Lasserre F, Marmugi A, Bertrand-Michel J, Podechard N, Al Saati T, Chétiveaux M, Baron S, Boué J, Dietrich G, Mselli-Lakhal L, Costet P, Lobaccaro JMA, Pineau T, Theodorou V, Postic C, Martin PGP, Guillou H. Essential fatty acids deficiency promotes lipogenic gene expression and hepatic steatosis through the liver X receptor.
J Hepatol 2013;
58:984-92. [PMID:
23333450 DOI:
10.1016/j.jhep.2013.01.006]
[Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Revised: 01/02/2013] [Accepted: 01/03/2013] [Indexed: 01/22/2023]
Abstract
BACKGROUND & AIMS
Nutrients influence non-alcoholic fatty liver disease. Essential fatty acids deficiency promotes various syndromes, including hepatic steatosis, through increased de novo lipogenesis. The mechanisms underlying such increased lipogenic response remain unidentified.
METHODS
We used wild type mice and mice lacking Liver X Receptors to perform a nutrigenomic study that aimed at examining the role of these transcription factors.
RESULTS
We showed that, in the absence of Liver X Receptors, essential fatty acids deficiency does not promote steatosis. Consistent with this, Liver X Receptors are required for the elevated expression of genes involved in lipogenesis in response to essential fatty acids deficiency.
CONCLUSIONS
This work identifies, for the first time, the central role of Liver X Receptors in steatosis induced by essential fatty acids deficiency.
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