A Proinflammatory Gut Microbiota Increases Systemic Inflammation and Accelerates Atherosclerosis

被引：333
作者：
Brandsma, Eelke [1 ]
Kloosterhuis, Niels J. [1 ]
Koster, Mirjam [1 ,4 ]
Dekker, Daphne C. [1 ]
Gijbels, Marion J. J. [5 ,6 ,7 ]
van der Velden, Saskia [5 ]
Rios-Morales, Melany [1 ]
van Faassen, Martijn J. R. [2 ]
Loreti, Marco G. [1 ]
de Bruin, Alain [1 ,4 ]
Fu, Jingyuan [1 ,3 ]
Kuipers, Folkert [1 ,2 ]
Bakker, Barbara M. [1 ]
Westerterp, Marit [1 ]
de Winther, Menno P. J. [5 ,8 ]
Hofker, Marten H. [1 ]
van de Sluis, Bart [1 ]
Koonen, Debby P. Y. [1 ]
机构：
[1] Univ Groningen, Dept Pediat, Groningen, Netherlands
[2] Univ Groningen, Dept Lab Med, Univ Med Ctr Groningen, Groningen, Netherlands
[3] Univ Groningen, Dept Genet, Groningen, Netherlands
[4] Univ Utrecht, Dutch Mol Pathol Ctr, Dept Pathobiol, Utrecht, Netherlands
[5] Univ Amsterdam, Acad Med Ctr, Dept Med Biochem, Expt Vasc Biol, Amsterdam, Netherlands
[6] Maastricht Univ, Dept Pathol, CARIM, Maastricht, Netherlands
[7] Maastricht Univ, Dept Mol Genet, CARIM, Maastricht, Netherlands
[8] Ludwig Maximilians Univ Munchen, Inst Cardiovasc Prevent IPEK, Munich, Germany
来源：
CIRCULATION RESEARCH | 2019年 / 124卷 / 01期
关键词：
atherosclerosis; cholesterol; diet; fatty acids; volatile; feces; inflammation; CHAIN FATTY-ACIDS; PROGRESSION;
D O I：
10.1161/CIRCRESAHA.118.313234
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
Rationale: Several studies have suggested a role for the gut microbiota in inflammation and atherogenesis. A causal relation relationship between gut microbiota, inflammation, and atherosclerosis has not been explored previously. Objective: Here, we investigated whether a proinflammatory microbiota from Caspase1(-/-) (Casp1(-/-)) mice accelerates atherogenesis in Ldlr(-/-)mice. Method and Results: We treated female Ldlr-/- mice with antibiotics and subsequently transplanted them with fecal microbiota from Casp1(-/-) mice based on a cohousing approach. Autologous transplantation of fecal microbiota of Ldlr(-/-) mice served as control. Mice were cohoused for 8 or 13 weeks and fed chow or high-fat cholesterol-rich diet. Fecal samples were collected, and factors related to inflammation, metabolism, intestinal health, and atherosclerotic phenotypes were measured. Unweighted Unifrac distances of 16S rDNA (ribosomal DNA) sequences confirmed the introduction of the Casp1(-/-) and Ldlr(-/-) microbiota into Ldlr(-/-) mice (referred to as Ldlr(-/-) (Casp1(-/-)) or Ldlr(-/-) ( Ldlr(-/-)) mice). Analysis of atherosclerotic lesion size in the aortic root demonstrated a significant 29% increase in plaque size in 13-week high-fat cholesterol-fed Ldlr-/-(Casp1-/-) mice compared with Ldlr(-/-) (Ldlr(-/-)) mice. We found increased numbers of circulating monocytes and neutrophils and elevated proinflammatory cytokine levels in plasma in high-fat cholesterol-fed Ldlr(-/-) (Casp1(-/-)) compared with Ldlr(-/-) (Ldlr(-/-)) mice. Neutrophil accumulation in the aortic root of Ldlr(-/-) (Casp1(-/-)) mice was enhanced compared with Ldlr(-/-) (Ldlr(-/-)) mice. 16S-rDNA-encoding sequence analysis in feces identified a significant reduction in the short-chain fatty acid-producing taxonomies Akkermansia, Christensenellaceae, Clostridium, and Odoribacter in Ldlr(-/-) (Casp1(-/-)) mice. Consistent with these findings, cumulative concentrations of the anti-inflammatory short-chain fatty acids propionate, acetate and butyrate in the cecum were significantly reduced in 13-week high-fat cholesterol-fed Ldlr(-/-) (Casp1(-/-)) compared with Ldlr(-/-)(Ldlr-/-) mice. Conclusions: Introduction of the proinflammatory Casp1(-/-) microbiota into Ldlr(-/-)mice enhances systemic inflammation and accelerates atherogenesis.
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页码：94 / 100
页数：7
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