Gene Expression Profiling Reveals that PXR Activation Inhibits Hepatic PPARα Activity and Decreases FGF21 Secretion in Male C57Bl6/J Mice

被引：15

作者：

Barretto, Sharon Ann ^{[1
]}

Lasserre, Frederic ^{[1
]}

Fougerat, Anne ^{[1
]}

Smith, Lorraine ^{[1
]}

Fougeray, Tiffany ^{[1
]}

Lukowicz, Celine ^{[1
]}

Polizzi, Arnaud ^{[1
]}

Smati, Sarra ^{[1
]}

Regnier, Marion ^{[1
]}

Naylies, Claire ^{[1
]}

Betoulieres, Colette ^{[1
]}

Lippi, Yannick ^{[1
]}

Guillou, Herve ^{[1
]}

Loiseau, Nicolas ^{[1
]}

Gamet-Payrastre, Laurence ^{[1
]}

Mselli-Lakhal, Laila ^{[1
]}

Ellero-Simatos, Sandrine ^{[1
]}

机构：

[1] INRA, Toxalim UMR1331, F-31027 Toulouse 3, France

来源：

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES | 2019年 / 20卷 / 15期

关键词：

nuclear receptors; hepatokines; transcriptomics; PREGNANE X RECEPTOR; NUCLEAR RECEPTORS; CROSS-TALK; CAR; METABOLISM; OBESITY; HOMEOSTASIS; INSIGHTS;

D O I：

10.3390/ijms20153767

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The pregnane X receptor (PXR) is the main nuclear receptor regulating the expression of xenobiotic-metabolizing enzymes and is highly expressed in the liver and intestine. Recent studies have highlighted its additional role in lipid homeostasis, however, the mechanisms of these regulations are not fully elucidated. We investigated the transcriptomic signature of PXR activation in the liver of adult wild-type vs. Pxr(-/-) C57Bl6/J male mice treated with the rodent specific ligand pregnenolone 16 alpha-carbonitrile (PCN). PXR activation increased liver triglyceride accumulation and significantly regulated the expression of 1215 genes, mostly xenobiotic-metabolizing enzymes. Among the down-regulated genes, we identified a strong peroxisome proliferator-activated receptor alpha (PPAR alpha) signature. Comparison of this signature with a list of fasting-induced PPAR alpha target genes confirmed that PXR activation decreased the expression of more than 25 PPAR alpha target genes, among which was the hepatokine fibroblast growth factor 21 (Fgf21). PXR activation abolished plasmatic levels of FGF21. We provide a comprehensive signature of PXR activation in the liver and identify new PXR target genes that might be involved in the steatogenic effect of PXR. Moreover, we show that PXR activation down-regulates hepatic PPAR alpha activity and FGF21 circulation, which could participate in the pleiotropic role of PXR in energy homeostasis.

引用

页数：13

共 45 条

[1] Pregnane X receptor activation and silencing promote steatosis of human hepatic cells by distinct lipogenic mechanisms [J].

Bitter, Andreas ;

Ruemmele, Petra ;

Klein, Kathrin ;

Kandel, Benjamin A. ;

Rieger, Jessica K. ;

Nuessler, Andreas K. ;

Zanger, Ulrich M. ;

Trauner, Michael ;

Schwab, Matthias ;

Burk, Oliver .

ARCHIVES OF TOXICOLOGY, 2015, 89 (11) :2089-2103

[2]

BLIGH EG, 1959, CAN J BIOCHEM PHYS, V37, P911

[3] Fibroblast Growth Factor 21: A Versatile Regulator of Metabolic Homeostasis [J].

BonDurant, Lucas D. ;

Potthoff, Matthew J. .

ANNUAL REVIEW OF NUTRITION, VOL 38, 2018, 38 :173-196

[4] Anatomical profiling of nuclear receptor expression reveals a hierarchical transcriptional network [J].

Bookout, Angie L. ;

Jeong, Yangsik ;

Downes, Michael ;

Yu, Ruth T. ;

Evans, Ronald M. ;

Mangelsdorf, David J. .

CELL, 2006, 126 (04) :789-799

[5] CrossNorm: a novel normalization strategy for microarray data in cancers [J].

Cheng, Lixin ;

Lo, Leung-Yau ;

Tang, Nelson L. S. ;

Wang, Dong ;

Leung, Kwong-Sak .

SCIENTIFIC REPORTS, 2016, 6

[6] NAG-1/GDF-15 prevents obesity by increasing thermogenesis, lipolysis and oxidative metabolism [J].

Chrysovergis, K. ;

Wang, X. ;

Kosak, J. ;

Lee, S-H ;

Kim, J. S. ;

Foley, J. F. ;

Travlos, G. ;

Singh, S. ;

Baek, S. J. ;

Eling, T. E. .

INTERNATIONAL JOURNAL OF OBESITY, 2014, 38 (12) :1555-1564

[7] RNA-Seq reveals common and unique PXR- and CAR-target gene signatures in the mouse liver transcriptome [J].

Cui, Julia Yue ;

Klaassen, Curtis D. .

BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS, 2016, 1859 (09) :1198-1217

[8]

Dai GR, 2019, MEDICINE, V98, DOI [10.1097/MD.0000000000014324, 10.1097/md.0000000000014324]

[9] Protein Abundance of Clinically Relevant Drug-Metabolizing Enzymes in the Human Liver and Intestine: A Comparative Analysis in Paired Tissue Specimens [J].

Drozdzik, Marek ;

Busch, Diana ;

Lapczuk, Joanna ;

Mueller, Janett ;

Ostrowski, Marek ;

Kurzawski, Mateusz ;

Oswald, Stefan .

CLINICAL PHARMACOLOGY & THERAPEUTICS, 2018, 104 (03) :515-524

[10] Gene Expression Omnibus: NCBI gene expression and hybridization array data repository [J].

Edgar, R ;

Domrachev, M ;

Lash, AE .

NUCLEIC ACIDS RESEARCH, 2002, 30 (01) :207-210

← 1 2 3 4 5 →