1
|
Casteras S, Abdul-Wahed A, Soty M, Vulin F, Guillou H, Campana M, Le Stunff H, Pirola L, Rajas F, Mithieux G, Gautier-Stein A. The suppression of hepatic glucose production improves metabolism and insulin sensitivity in subcutaneous adipose tissue in mice. Diabetologia 2016; 59:2645-2653. [PMID: 27631137 DOI: 10.1007/s00125-016-4097-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 08/05/2016] [Indexed: 12/13/2022]
Abstract
AIMS/HYPOTHESIS Despite the strong correlation between non-alcoholic fatty liver disease and insulin resistance, hepatic steatosis is associated with greater whole-body insulin sensitivity in several models. We previously reported that the inhibition of hepatic glucose production (HGP) protects against the development of obesity and diabetes despite severe steatosis, thanks to the secretion of specific hepatokines such as fibroblast growth factor 21 (FGF21) and angiopoietin-related growth factor. In this work, we focused on adipose tissue to assess whether liver metabolic fluxes might, by interorgan communication, control insulin signalling in lean animals. METHODS Insulin signalling was studied in the adipose tissue of mice lacking the catalytic subunit of glucose 6-phosphatase, the key enzyme in endogenous glucose production, in the liver (L-G6pc -/- mice). Morphological and metabolic changes in the adipose tissues were characterised by histological analyses, gene expression and protein content. RESULTS Mice lacking HGP exhibited improved insulin sensitivity of the phosphoinositide 3-kinase/Akt pathway in the subcutaneous adipose tissue associated with a browning of adipocytes. The suppression of HGP increased FGF21 levels in lean animals, and increased FGF21 was responsible for the metabolic changes in the subcutaneous adipose tissue but not for its greater insulin sensitivity. The latter might be linked to an increase in the ratio of monounsaturated to saturated fatty acids released by the liver. CONCLUSIONS Our work provides evidence that HGP controls subcutaneous adipose tissue browning and insulin sensitivity through two pathways: the release of beneficial hepatokines and changes in hepatic fatty acids profile.
Collapse
Affiliation(s)
- Sylvie Casteras
- Inserm U1213, Faculté Laennec, 7 rue Guillaume Paradin, 69372, Lyon cedex 08, France
- Université de Lyon, Lyon, France
- Université Lyon1, Villeurbanne, France
| | - Aya Abdul-Wahed
- Inserm U1213, Faculté Laennec, 7 rue Guillaume Paradin, 69372, Lyon cedex 08, France
- Université de Lyon, Lyon, France
- Université Lyon1, Villeurbanne, France
| | - Maud Soty
- Inserm U1213, Faculté Laennec, 7 rue Guillaume Paradin, 69372, Lyon cedex 08, France
- Université de Lyon, Lyon, France
- Université Lyon1, Villeurbanne, France
| | - Fanny Vulin
- Inserm U1213, Faculté Laennec, 7 rue Guillaume Paradin, 69372, Lyon cedex 08, France
- Université de Lyon, Lyon, France
- Université Lyon1, Villeurbanne, France
| | - Hervé Guillou
- INRA, ToxAlim UMR1331 (Research Center in Food Toxicology), Toulouse, France
| | - Mélanie Campana
- Unité Biologie Fonctionnelle et Adaptative -UMR CNRS 8251, Université Paris- Diderot (7), Paris, France
- I2BC - UMR 9198 Université Paris Sud, Gif sur Yvette, France
| | - Hervé Le Stunff
- Unité Biologie Fonctionnelle et Adaptative -UMR CNRS 8251, Université Paris- Diderot (7), Paris, France
- I2BC - UMR 9198 Université Paris Sud, Gif sur Yvette, France
| | - Luciano Pirola
- Université de Lyon, Lyon, France
- Université Lyon1, Villeurbanne, France
- Laboratoire de Recherche en Cardiovasculaire, Métabolisme, Diabétologie et Nutrition, CarMeN, Oullins, France
| | - Fabienne Rajas
- Inserm U1213, Faculté Laennec, 7 rue Guillaume Paradin, 69372, Lyon cedex 08, France
- Université de Lyon, Lyon, France
- Université Lyon1, Villeurbanne, France
| | - Gilles Mithieux
- Inserm U1213, Faculté Laennec, 7 rue Guillaume Paradin, 69372, Lyon cedex 08, France
- Université de Lyon, Lyon, France
- Université Lyon1, Villeurbanne, France
| | - Amandine Gautier-Stein
- Inserm U1213, Faculté Laennec, 7 rue Guillaume Paradin, 69372, Lyon cedex 08, France.
- Université de Lyon, Lyon, France.
- Université Lyon1, Villeurbanne, France.
| |
Collapse
|
2
|
Abdul-Wahed A, Gautier-Stein A, Casteras S, Soty M, Roussel D, Romestaing C, Guillou H, Tourette JA, Pleche N, Zitoun C, Gri B, Sardella A, Rajas F, Mithieux G. A link between hepatic glucose production and peripheral energy metabolism via hepatokines. Mol Metab 2014; 3:531-43. [PMID: 25061558 PMCID: PMC4099510 DOI: 10.1016/j.molmet.2014.05.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 05/16/2014] [Accepted: 05/20/2014] [Indexed: 12/25/2022] Open
Abstract
Type 2 diabetes is characterized by a deterioration of glucose tolerance, which associates insulin resistance of glucose uptake by peripheral tissues and increased endogenous glucose production. Here we report that the specific suppression of hepatic glucose production positively modulates whole-body glucose and energy metabolism. We used mice deficient in liver glucose-6 phosphatase that is mandatory for endogenous glucose production. When they were fed a high fat/high sucrose diet, they resisted the development of diabetes and obesity due to the activation of peripheral glucose metabolism and thermogenesis. This was linked to the secretion of hepatic hormones like fibroblast growth factor 21 and angiopoietin-like factor 6. Interestingly, the deletion of hepatic glucose-6 phosphatase in previously obese and insulin-resistant mice resulted in the rapid restoration of glucose and body weight controls. Therefore, hepatic glucose production is an essential lever for the control of whole-body energy metabolism during the development of obesity and diabetes.
Collapse
Affiliation(s)
- Aya Abdul-Wahed
- Institut National de la Santé et de la Recherche Médicale, U855, Lyon, F-69008, France ; Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France ; University of Aleppo, Aleppo, Syria
| | - Amandine Gautier-Stein
- Institut National de la Santé et de la Recherche Médicale, U855, Lyon, F-69008, France ; Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France
| | - Sylvie Casteras
- Institut National de la Santé et de la Recherche Médicale, U855, Lyon, F-69008, France ; Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France
| | - Maud Soty
- Institut National de la Santé et de la Recherche Médicale, U855, Lyon, F-69008, France ; Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France
| | - Damien Roussel
- Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France ; Centre National de la Recherche Scientifique, UMR5023, Villeurbanne, F-69622, France
| | - Caroline Romestaing
- Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France ; Centre National de la Recherche Scientifique, UMR5023, Villeurbanne, F-69622, France
| | | | - Jean-André Tourette
- Institut National de la Santé et de la Recherche Médicale, U855, Lyon, F-69008, France ; Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France
| | - Nicolas Pleche
- Institut National de la Santé et de la Recherche Médicale, U855, Lyon, F-69008, France ; Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France
| | - Carine Zitoun
- Institut National de la Santé et de la Recherche Médicale, U855, Lyon, F-69008, France ; Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France
| | - Blandine Gri
- Institut National de la Santé et de la Recherche Médicale, U855, Lyon, F-69008, France ; Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France
| | - Anne Sardella
- Institut National de la Santé et de la Recherche Médicale, U855, Lyon, F-69008, France ; Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France
| | - Fabienne Rajas
- Institut National de la Santé et de la Recherche Médicale, U855, Lyon, F-69008, France ; Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France
| | - Gilles Mithieux
- Institut National de la Santé et de la Recherche Médicale, U855, Lyon, F-69008, France ; Université de Lyon, Lyon, F-69008, France ; Université Lyon 1, Villeurbanne, F-69622, France
| |
Collapse
|