1
|
Papadopoulos G, Legaki AI, Georgila K, Vorkas P, Giannousi E, Stamatakis G, Moustakas II, Petrocheilou M, Pyrina I, Gercken B, Kassi E, Chavakis T, Pateras IS, Panayotou G, Gika H, Samiotaki M, Eliopoulos AG, Chatzigeorgiou A. Integrated omics analysis for characterization of the contribution of high fructose corn syrup to non-alcoholic fatty liver disease in obesity. Metabolism 2023; 144:155552. [PMID: 36996933 DOI: 10.1016/j.metabol.2023.155552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 03/17/2023] [Accepted: 03/18/2023] [Indexed: 04/01/2023]
Abstract
BACKGROUND High-Fructose Corn Syrup (HFCS), a sweetener rich in glucose and fructose, is nowadays widely used in beverages and processed foods; its consumption has been correlated to the emergence and progression of Non-Alcoholic Fatty Liver Disease (NAFLD). Nevertheless, the molecular mechanisms by which HFCS impacts hepatic metabolism remain scarce, especially in the context of obesity. Besides, the majority of current studies focuses either on the detrimental role of fructose in hepatic steatosis or compare separately the additive impact of fructose versus glucose in high fat diet-induced NAFLD. AIM By engaging combined omics approaches, we sought to characterize the role of HFCS in obesity-associated NAFLD and reveal molecular processes, which mediate the exaggeration of steatosis under these conditions. METHODS Herein, C57BL/6 mice were fed a normal-fat-diet (ND), a high-fat-diet (HFD) or a HFD supplemented with HFCS (HFD-HFCS) and upon examination of their metabolic and NAFLD phenotype, proteomic, lipidomic and metabolomic analyses were conducted to identify HFCS-related molecular alterations of the hepatic metabolic landscape in obesity. RESULTS Although HFD and HFD-HFCS mice displayed comparable obesity, HFD-HFCS mice showed aggravation of hepatic steatosis, as analysis of the lipid droplet area in liver sections revealed (12,15 % of total section area in HFD vs 22,35 % in HFD-HFCS), increased NAFLD activity score (3,29 in HFD vs 4,86 in HFD-HFCS) and deteriorated hepatic insulin resistance, as compared to the HFD mice. Besides, the hepatic proteome of HFD-HFCS mice was characterized by a marked upregulation of 5 core proteins implicated in de novo lipogenesis (DNL), while an increased phosphatidyl-cholines(PC)/phosphatidyl-ethanolamines(PE) ratio (2.01 in HFD vs 3.04 in HFD-HFCS) was observed in the livers of HFD-HFCS versus HFD mice. Integrated analysis of the omics datasets indicated that Tricarboxylic Acid (TCA) cycle overactivation is likely contributing towards the intensification of steatosis during HFD-HFCS-induced NAFLD. CONCLUSION Our results imply that HFCS significantly contributes to steatosis aggravation during obesity-related NAFLD, likely deriving from DNL upregulation, accompanied by TCA cycle overactivation and deteriorated hepatic insulin resistance.
Collapse
Affiliation(s)
- Grigorios Papadopoulos
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Str., 11527 Athens, Greece
| | - Aigli-Ioanna Legaki
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Str., 11527 Athens, Greece
| | - Konstantina Georgila
- Department of Biology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Panagiotis Vorkas
- Institute of Applied Biosciences, Centre for Research and Technology, 57001, Thermi, Thessaloniki, Greece
| | - Eirini Giannousi
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Str., 11527 Athens, Greece
| | - George Stamatakis
- Institute for Bio-innovation, Biomedical Sciences Research Center "Alexander Fleming", Vari 16672, Greece
| | - Ioannis I Moustakas
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Str., 11527 Athens, Greece
| | - Maria Petrocheilou
- School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; Biomic AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), 57001, Thermi, Thessaloniki, Greece
| | - Iryna Pyrina
- Institute for Clinical Chemistry and Laboratory Medicine, University Clinic Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307 Dresden, Germany
| | - Bettina Gercken
- Institute for Clinical Chemistry and Laboratory Medicine, University Clinic Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307 Dresden, Germany
| | - Eva Kassi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Str., 11527 Athens, Greece
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Clinic Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307 Dresden, Germany
| | - Ioannis S Pateras
- 2nd Department of Pathology, "Attikon" University Hospital, Medical School, National and Kapodistrian University of Athens, 12462 Athens, Greece
| | - George Panayotou
- Institute for Bio-innovation, Biomedical Sciences Research Center "Alexander Fleming", Vari 16672, Greece
| | - Helen Gika
- School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; Biomic AUTh, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), 57001, Thermi, Thessaloniki, Greece
| | - Martina Samiotaki
- Institute for Bio-innovation, Biomedical Sciences Research Center "Alexander Fleming", Vari 16672, Greece
| | - Aristides G Eliopoulos
- Department of Biology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece; Center of Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece; Center for New Biotechnologies and Precision Medicine, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Antonios Chatzigeorgiou
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, 75 Mikras Asias Str., 11527 Athens, Greece; Institute for Clinical Chemistry and Laboratory Medicine, University Clinic Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse 74, 01307 Dresden, Germany.
| |
Collapse
|