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NPJ Syst Biol Appl. 2017 Nov 7;3:33. doi: 10.1038/s41540-017-0033-0. eCollection 2017.

Transcriptomics-driven lipidomics (TDL) identifies the microbiome-regulated targets of ileal lipid metabolism.

Author information

1
Nestlé Institute of Health Sciences SA, Campus EPFL, Quartier de l'Innovation, Bâtiment H, 1015 Lausanne, Switzerland.
2
Service de biomédecine (BIO), Quartier UNIL-CHUV, Rue du Bugnon 46, CH-1011 Lausanne, Switzerland.

Abstract

The gut microbiome and lipid metabolism are both recognized as essential components in the maintenance of metabolic health. The mechanisms involved are multifactorial and (especially for microbiome) poorly defined. A strategic approach to investigate the complexity of the microbial influence on lipid metabolism would facilitate determination of relevant molecular mechanisms for microbiome-targeted therapeutics. E. coli is associated with obesity and metabolic syndrome and we used this association in conjunction with gnotobiotic models to investigate the impact of E. coli on lipid metabolism. To address the complexities of the integration of the microbiome and lipid metabolism, we developed transcriptomics-driven lipidomics (TDL) to predict the impact of E. coli colonization on lipid metabolism and established mediators of inflammation and insulin resistance including arachidonic acid metabolism, alterations in bile acids and dietary lipid absorption. A microbiome-related therapeutic approach targeting these mechanisms may therefore provide a therapeutic avenue supporting maintenance of metabolic health.

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