| First Author | Everard A | Year | 2019 |
| Journal | Nat Commun | Volume | 10 |
| Issue | 1 | Pages | 457 |
| PubMed ID | 30692526 | Mgi Jnum | J:270178 |
| Mgi Id | MGI:6277294 | Doi | 10.1038/s41467-018-08051-7 |
| Citation | Everard A, et al. (2019) Intestinal epithelial N-acylphosphatidylethanolamine phospholipase D links dietary fat to metabolic adaptations in obesity and steatosis. Nat Commun 10(1):457 |
| abstractText | Variations in N-acylethanolamines (NAE) levels are associated with obesity and metabolic comorbidities. Their role in the gut remains unclear. Therefore, we generated a mouse model of inducible intestinal epithelial cell (IEC)-specific deletion of N-acylphosphatidylethanolamine phospholipase D (NAPE-PLD), a key enzyme involved in NAE biosynthesis (Napepld(IEC)). We discovered that Napepld(IEC) mice are hyperphagic upon first high-fat diet (HFD) exposure, and develop exacerbated obesity and steatosis. These mice display hypothalamic Pomc neurons dysfunctions and alterations in intestinal and plasma NAE and 2-acylglycerols. After long-term HFD, Napepld(IEC) mice present reduced energy expenditure. The increased steatosis is associated with higher gut and liver lipid absorption. Napepld(IEC) mice display altered gut microbiota. Akkermansia muciniphila administration partly counteracts the IEC NAPE-PLD deletion effects. In conclusion, intestinal NAPE-PLD is a key sensor in nutritional adaptation to fat intake, gut-to-brain axis and energy homeostasis and thereby constitutes a novel target to tackle obesity and related disorders. |
