Modulation of the Bile Acid Enterohepatic Cycle by Intestinal Microbiota Alleviates Alcohol Liver Disease

被引：28

作者：

Ciocan, Dragos ^{[1
,2
,3
]}

Spatz, Madeleine ^{[1
]}

Trainel, Nicolas ^{[1
]}

Hardonniere, Kevin ^{[1
]}

Domenichini, Severine ^{[4
]}

Mercier-Nome, Francoise ^{[4
]}

Desmons, Aurore ^{[3
,5
]}

Humbert, Lydie ^{[5
]}

Durand, Sylvere ^{[6
]}

Kroemer, Guido ^{[6
,7
,8
,9
,10
]}

Lamaziere, Antonin ^{[3
,5
]}

Hugot, Cindy ^{[1
]}

Perlemuter, Gabriel ^{[1
,2
,3
]}

Cassard, Anne-Marie ^{[1
,3
]}

机构：

[1] Univ Paris Saclay, U996, Inflammat Microbiome & Immunosurveillance, INSERM, F-92140 Clamart, France

[2] Hop Antoine Beclere, AP HP, Hepatogastroenterol & Nutr, F-92140 Clamart, France

[3] Paris Ctr Microbiome Med PaCeMM FHU, F-75012 Paris, France

[4] Univ Paris Saclay, Inst Paris Saclay Innovat Therapeut, CNRS, INSERM, F-92296 Chatenay Malabry, France

[5] Sorbonne Univ, Hop St Antoine, AP HP SU, INSERM,Ctr Rech St Antoine,CRSA,Dept Metab Clin, F-75012 Paris, France

[6] Gustave Roussy Canc Campus, Metabol & Cell Biol Platforms, F-94800 Villejuif, France

[7] Ctr Rech Cordeliers, Equipe Labellisee La Ligue Natl Canc 11, U1138, INSERM, F-75005 Paris, France

[8] Univ Paris Descartes Paris V, Sorbonne Paris Cite, F-75005 Paris, France

[9] Univ Paris 06, F-75006 Paris, France

[10] Hop Europeen Georges Pompidou, AP HP, Pole Biol, F-75015 Paris, France

来源：

CELLS | 2022年 / 11卷 / 06期

关键词：

alcohol; bile acid; microbiota; bacteria; liver; pectin; fiber; DOUBLE-BLIND; SEQUESTRANT COLESEVELAM; X RECEPTOR; INJURY; INFLAMMATION; DYSBIOSIS; MODEL; BINGE;

D O I：

10.3390/cells11060968

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Reshaping the intestinal microbiota by the ingestion of fiber, such as pectin, improves alcohol-induced liver lesions in mice by modulating bacterial metabolites, including indoles, as well as bile acids (BAs). In this context, we aimed to elucidate how oral supplementation of pectin affects BA metabolism in alcohol-challenged mice receiving feces from patients with alcoholic hepatitis. Pectin reduced alcohol liver disease. This beneficial effect correlated with lower BA levels in the plasma and liver but higher levels in the caecum, suggesting that pectin stimulated BA excretion. Pectin modified the overall BA composition, favoring an augmentation in the proportion of hydrophilic forms in the liver, plasma, and gut. This effect was linked to an imbalance between hydrophobic and hydrophilic (less toxic) BAs in the gut. Pectin induced the enrichment of intestinal bacteria harboring genes that encode BA-metabolizing enzymes. The modulation of BA content by pectin inhibited farnesoid X receptor signaling in the ileum and the subsequent upregulation of Cyp7a1 in the liver. Despite an increase in BA synthesis, pectin reduced BA serum levels by promoting their intestinal excretion. In conclusion, pectin alleviates alcohol liver disease by modifying the BA cycle through effects on the intestinal microbiota and enhanced BA excretion.

引用

页数：16

共 52 条

[51] Colesevelam enhances the beneficial effects of brown fat activation on hyperlipidaemia and atherosclerosis development [J].