| First Author | Caprioli B | Year | 2023 |
| Journal | Int J Mol Sci | Volume | 24 |
| Issue | 20 | PubMed ID | 37894869 |
| Mgi Jnum | J:358072 | Mgi Id | MGI:7546202 |
| Doi | 10.3390/ijms242015190 | Citation | Caprioli B, et al. (2023) Neurolysin Knockout Mice in a Diet-Induced Obesity Model. Int J Mol Sci 24(20) |
| abstractText | Neurolysin oligopeptidase (E.C.3.4.24.16; Nln), a member of the zinc metallopeptidase M3 family, was first identified in rat brain synaptic membranes hydrolyzing neurotensin at the Pro-Tyr peptide bond. The previous development of C57BL6/N mice with suppression of Nln gene expression (Nln(-/-)), demonstrated the biological relevance of this oligopeptidase for insulin signaling and glucose uptake. Here, several metabolic parameters were investigated in Nln(-/-) and wild-type C57BL6/N animals (WT; n = 5-8), male and female, fed either a standard (SD) or a hypercaloric diet (HD), for seven weeks. Higher food intake and body mass gain was observed for Nln(-/-) animals fed HD, compared to both male and female WT control animals fed HD. Leptin gene expression was higher in Nln(-/-) male and female animals fed HD, compared to WT controls. Both WT and Nln(-/-) females fed HD showed similar gene expression increase of dipeptidyl peptidase 4 (DPP4), a peptidase related to glucagon-like peptide-1 (GLP-1) metabolism. The present data suggest that Nln participates in the physiological mechanisms related to diet-induced obesity. Further studies will be necessary to better understand the molecular mechanism responsible for the higher body mass gain observed in Nln(-/-) animals fed HD. |
