1
|
Carlier A, Phan F, Szpigel A, Hajduch E, Salem JE, Gautheron J, Le Goff W, Guérin M, Lachkar F, Ratziu V, Hartemann A, Ferré P, Foufelle F, Bourron O. Dihydroceramides in Triglyceride-Enriched VLDL Are Associated with Nonalcoholic Fatty Liver Disease Severity in Type 2 Diabetes. Cell Rep Med 2020; 1:100154. [PMID: 33377125 PMCID: PMC7762772 DOI: 10.1016/j.xcrm.2020.100154] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 10/05/2020] [Accepted: 11/17/2020] [Indexed: 02/07/2023]
Abstract
Plasma dihydroceramides are predictors of type 2 diabetes and related to metabolic dysfunctions, but the underlying mechanisms are not characterized. We compare the relationships between plasma dihydroceramides and biochemical and hepatic parameters in two cohorts of diabetic patients. Hepatic steatosis, steatohepatitis, and fibrosis are assessed by their plasma biomarkers. Plasma lipoprotein sphingolipids are studied in a sub-group of diabetic patients. Liver biopsies from subjects with suspected non-alcoholic fatty liver disease are analyzed for sphingolipid synthesis enzyme expression. Dihydroceramides, contained in triglyceride-rich very-low-density lipoprotein (VLDL), are associated with steatosis and steatohepatitis. Expression of sphingolipid synthesis enzymes is correlated with histological steatosis and inflammation grades. In conclusion, association of plasma dihydroceramides with nonalcoholic fatty liver might explain their predictive character for type 2 diabetes. Our results suggest a relationship between hepatic sphingolipid metabolism and steatohepatitis and an involvement of dihydroceramides in the synthesis/secretion of triglyceride-rich VLDL, a hallmark of NAFLD and type 2 diabetes dyslipidemia. Plasma dihydroceramides are associated with NAFLD severity in type 2 diabetic patients Plasma dihydroceramides are found in triglyceride-enriched VLDL A role for dihydroceramide in triglyceride-rich VLDL synthesis/secretion is suggested Expression of enzymes of hepatic sphingolipid synthesis increases with NAFLD severity
Collapse
Affiliation(s)
- Aurélie Carlier
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France.,Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Diabetes Department, Hospital Pitié-Salpêtrière, 75013 Paris, France
| | - Franck Phan
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France.,Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Diabetes Department, Hospital Pitié-Salpêtrière, 75013 Paris, France
| | - Anaïs Szpigel
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France
| | - Eric Hajduch
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France.,Institute of Cardiometabolism and Nutrition, ICAN, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Joe-Elie Salem
- Institute of Cardiometabolism and Nutrition, ICAN, Assistance Publique-Hôpitaux de Paris, Paris, France.,Sorbonne Université, Assistance Publique-Hôpitaux de Paris, CIC Paris-Est, Hospital Pitié-Salpêtrière, 75013 Paris, France
| | - Jérémie Gautheron
- Institute of Cardiometabolism and Nutrition, ICAN, Assistance Publique-Hôpitaux de Paris, Paris, France.,Centre de Recherche Saint-Antoine, INSERM, Sorbonne Université, 75012 Paris, France
| | - Wilfried Le Goff
- Institute of Cardiometabolism and Nutrition, ICAN, Assistance Publique-Hôpitaux de Paris, Paris, France.,UMR ICAN, INSERM, Sorbonne Université, 75013 Paris, France
| | - Maryse Guérin
- Institute of Cardiometabolism and Nutrition, ICAN, Assistance Publique-Hôpitaux de Paris, Paris, France.,UMR ICAN, INSERM, Sorbonne Université, 75013 Paris, France
| | - Floriane Lachkar
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France
| | - Vlad Ratziu
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France.,Institute of Cardiometabolism and Nutrition, ICAN, Assistance Publique-Hôpitaux de Paris, Paris, France.,Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Hepatology Department, Hospital Pitié-Salpêtrière, 75013 Paris, France
| | - Agnès Hartemann
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France.,Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Diabetes Department, Hospital Pitié-Salpêtrière, 75013 Paris, France.,Institute of Cardiometabolism and Nutrition, ICAN, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Pascal Ferré
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France.,Institute of Cardiometabolism and Nutrition, ICAN, Assistance Publique-Hôpitaux de Paris, Paris, France.,Assistance Publique-Hôpitaux de Paris, Oncology and endocrine biochemistry Department, Hospital Pitié-Salpêtrière, 75013 Paris, France
| | - Fabienne Foufelle
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France.,Institute of Cardiometabolism and Nutrition, ICAN, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Olivier Bourron
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France.,Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Diabetes Department, Hospital Pitié-Salpêtrière, 75013 Paris, France.,Institute of Cardiometabolism and Nutrition, ICAN, Assistance Publique-Hôpitaux de Paris, Paris, France
| |
Collapse
|
2
|
Szpigel A, Hainault I, Carlier A, Venteclef N, Batto AF, Hajduch E, Bernard C, Ktorza A, Gautier JF, Ferré P, Bourron O, Foufelle F. Lipid environment induces ER stress, TXNIP expression and inflammation in immune cells of individuals with type 2 diabetes. Diabetologia 2018; 61:399-412. [PMID: 28988346 DOI: 10.1007/s00125-017-4462-5] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 08/24/2017] [Indexed: 02/04/2023]
Abstract
AIMS/HYPOTHESIS Obesity and type 2 diabetes are concomitant with low-grade inflammation affecting insulin sensitivity and insulin secretion. Recently, the thioredoxin interacting protein (TXNIP) has been implicated in the activation process of the NOD-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome. In this study, we aim to determine whether the expression of TXNIP is altered in the circulating immune cells of individuals with type 2 vs type 1 diabetes and whether this can be related to specific causes and consequences of inflammation. METHODS The expression of TXNIP, inflammatory markers, markers of the unfolded protein response (UPR) to endoplasmic reticulum (ER) stress and enzymes involved in sphingolipid metabolism was quantified by quantitative reverse transcription real-time PCR (qRT-PCR) in peripheral blood mononuclear cells (PBMCs) of 13 non-diabetic individuals, 23 individuals with type 1 diabetes and 81 with type 2 diabetes. A lipidomic analysis on the plasma of 13 non-diabetic individuals, 35 individuals with type 1 diabetes and 94 with type 2 diabetes was performed. The effects of ER stress or of specific lipids on TXNIP and inflammatory marker expression were analysed in human monocyte-derived macrophages (HMDMs) and THP-1 cells. RESULTS The expression of TXNIP and inflammatory and UPR markers was increased in the PBMCs of individuals with type 2 diabetes when compared with non-diabetic individuals or individuals with type 1 diabetes. TXNIP expression was significantly correlated with plasma fasting glucose, plasma triacylglycerol concentrations and specific UPR markers. Induction of ER stress in THP-1 cells or cultured HMDMs led to increased expression of UPR markers, TXNIP, NLRP3 and IL-1β. Conversely, a chemical chaperone reduced the expression of UPR markers and TXNIP in PBMCs of individuals with type 2 diabetes. The lipidomic plasma analysis revealed an increased concentration of saturated dihydroceramide and sphingomyelin in individuals with type 2 diabetes when compared with non-diabetic individuals and individuals with type 1 diabetes. In addition, the expression of specific enzymes of sphingolipid metabolism, dihydroceramide desaturase 1 and sphingomyelin synthase 1, was increased in the PBMCs of individuals with type 2 diabetes. Palmitate or C2 ceramide induced ER stress in macrophages as well as increased expression of TXNIP, NLRP3 and IL-1β. CONCLUSIONS/INTERPRETATION In individuals with type 2 diabetes, circulating immune cells display an inflammatory phenotype that can be linked to ER stress and TXNIP expression. Immune cell ER stress can in turn be linked to the specific exogenous and endogenous lipid environment found in type 2 diabetes.
Collapse
Affiliation(s)
- Anaïs Szpigel
- Inserm, UMRS 1138, Sorbonne Universités, UPMC Univ Paris 06; Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot; Centre de Recherche des Cordeliers, 15 rue de l'école de médicine, 75006, Paris, France
- Institut de Recherches Servier, Suresnes, France
| | - Isabelle Hainault
- Inserm, UMRS 1138, Sorbonne Universités, UPMC Univ Paris 06; Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot; Centre de Recherche des Cordeliers, 15 rue de l'école de médicine, 75006, Paris, France
| | - Aurélie Carlier
- Department of Endocrinology, Nutrition, and Diabetes, Pitié-Salpêtrière Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Nicolas Venteclef
- Inserm, UMRS 1138, Sorbonne Universités, UPMC Univ Paris 06; Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot; Centre de Recherche des Cordeliers, 15 rue de l'école de médicine, 75006, Paris, France
| | - Anne-Françoise Batto
- Inserm, UMRS 1138, Sorbonne Universités, UPMC Univ Paris 06; Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot; Centre de Recherche des Cordeliers, 15 rue de l'école de médicine, 75006, Paris, France
| | - Eric Hajduch
- Inserm, UMRS 1138, Sorbonne Universités, UPMC Univ Paris 06; Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot; Centre de Recherche des Cordeliers, 15 rue de l'école de médicine, 75006, Paris, France
| | | | - Alain Ktorza
- Institut de Recherches Servier, Suresnes, France
| | - Jean-François Gautier
- Inserm, UMRS 1138, Sorbonne Universités, UPMC Univ Paris 06; Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot; Centre de Recherche des Cordeliers, 15 rue de l'école de médicine, 75006, Paris, France
- Department of Diabetes and Endocrinology, Lariboisière Hospital, DHU FIRE, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Pascal Ferré
- Inserm, UMRS 1138, Sorbonne Universités, UPMC Univ Paris 06; Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot; Centre de Recherche des Cordeliers, 15 rue de l'école de médicine, 75006, Paris, France
- Department of Oncology and Endocrine Biochemistry, Pitié-Salpêtrière Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Olivier Bourron
- Inserm, UMRS 1138, Sorbonne Universités, UPMC Univ Paris 06; Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot; Centre de Recherche des Cordeliers, 15 rue de l'école de médicine, 75006, Paris, France
- Department of Endocrinology, Nutrition, and Diabetes, Pitié-Salpêtrière Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Fabienne Foufelle
- Inserm, UMRS 1138, Sorbonne Universités, UPMC Univ Paris 06; Sorbonne Paris Cité, Université Paris Descartes, Université Paris Diderot; Centre de Recherche des Cordeliers, 15 rue de l'école de médicine, 75006, Paris, France.
| |
Collapse
|