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Yu S, Lee HM, Lee J, Hwang JT, Choi HK, Lee YG. Pennogenin 3- O-β-Chacotrioside Attenuates Hypertrophied Lipid Accumulation by Enhancing Mitochondrial Oxidative Capacity. Int J Mol Sci 2024; 25:2970. [PMID: 38474216 DOI: 10.3390/ijms25052970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
Excessive lipid accumulation in adipocytes is a primary contributor to the development of metabolic disorders, including obesity. The consumption of bioactive compounds derived from natural sources has been recognized as being safe and effective in preventing and alleviating obesity. Therefore, we aimed to explore the antilipidemic effects of pennogenin 3-O-β-chacotrioside (P3C), a steroid glycoside, on hypertrophied 3T3-L1 adipocytes. Oil Red O and Nile red staining demonstrated a P3C-induced reduction in lipid droplet accumulation. Additionally, the increased expression of adipogenic and lipogenic factors, including PPARγ and C/EBPα, during the differentiation process was significantly decreased by P3C treatment at both the protein and mRNA levels. Furthermore, P3C treatment upregulated the expression of fatty acid oxidation-related genes such as PGC1α and CPT1a. Moreover, mitochondrial respiration and ATP generation increased following P3C treatment, as determined using the Seahorse XF analyzer. P3C treatment also increased the protein expression of mitochondrial oxidative phosphorylation in hypertrophied adipocytes. Our findings suggest that P3C could serve as a natural lipid-lowering agent, reducing lipogenesis and enhancing mitochondrial oxidative capacity. Therefore, P3C may be a promising candidate as a therapeutic agent for obesity-related diseases.
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Affiliation(s)
- Seungmin Yu
- Personalized Diet Research Group, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea
| | - Hee Min Lee
- Kimchi Industry Promotion Division, World Institute of Kimchi, Gwangju 61755, Republic of Korea
| | - Jangho Lee
- Personalized Diet Research Group, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea
| | - Jin-Taek Hwang
- Personalized Diet Research Group, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea
| | - Hyo-Kyoung Choi
- Personalized Diet Research Group, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea
| | - Yu Geon Lee
- Personalized Diet Research Group, Korea Food Research Institute (KFRI), Wanju 55365, Republic of Korea
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Arroum T, Pham L, Raisanen TE, Morse PT, Wan J, Bell J, Lax R, Saada A, Hüttemann M, Weksler-Zangen S. High Sucrose Diet-Induced Subunit I Tyrosine 304 Phosphorylation of Cytochrome c Oxidase Leads to Liver Mitochondrial Respiratory Dysfunction in the Cohen Diabetic Rat Model. Antioxidants (Basel) 2023; 13:19. [PMID: 38275639 PMCID: PMC10812566 DOI: 10.3390/antiox13010019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/13/2023] [Accepted: 12/19/2023] [Indexed: 01/27/2024] Open
Abstract
The mitochondrial oxidative phosphorylation process generates most of the cellular energy and free radicals in mammalian tissues. Both factors play a critical role in numerous human diseases that could be affected by reversible phosphorylation events that regulate the function and activity of the oxidative phosphorylation complexes. In this study, we analyzed liver mitochondria of Cohen diabetes-sensitive (CDs) and Cohen diabetes-resistant (CDr) rats, using blue native gel electrophoresis (BN-PAGE) in combination with mitochondrial activity measurements and a site-specific tyrosine phosphorylation implicated in inflammation, a known driver of diabetes pathology. We uncovered the presence of a specific inhibitory phosphorylation on tyrosine 304 of catalytic subunit I of dimeric cytochrome c oxidase (CcO, complex IV). Driven by a high sucrose diet in both CDr and CDs rats, Y304 phosphorylation, which occurs close to the catalytic oxygen binding site, correlates with a decrease in CcO activity and respiratory dysfunction in rat liver tissue under hyperglycemic conditions. We propose that this phosphorylation, specifically seen in dimeric CcO and induced by high sucrose diet-mediated inflammatory signaling, triggers enzymatic activity decline of complex IV dimers and the assembly of supercomplexes in liver tissue as a molecular mechanism underlying a (pre-)diabetic phenotype.
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Affiliation(s)
- Tasnim Arroum
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA; (T.A.); (L.P.); (T.E.R.); (P.T.M.); (J.W.); (J.B.)
| | - Lucynda Pham
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA; (T.A.); (L.P.); (T.E.R.); (P.T.M.); (J.W.); (J.B.)
| | - Taryn E. Raisanen
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA; (T.A.); (L.P.); (T.E.R.); (P.T.M.); (J.W.); (J.B.)
| | - Paul T. Morse
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA; (T.A.); (L.P.); (T.E.R.); (P.T.M.); (J.W.); (J.B.)
| | - Junmei Wan
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA; (T.A.); (L.P.); (T.E.R.); (P.T.M.); (J.W.); (J.B.)
| | - Jamie Bell
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA; (T.A.); (L.P.); (T.E.R.); (P.T.M.); (J.W.); (J.B.)
| | - Rachel Lax
- Faculty of Medicine Hebrew, University of Jerusalem, Jerusalem 9112102, Israel; (R.L.); (A.S.)
- The Hadassah Diabetes Center, Hadassah Medical Center, Jerusalem 9112102, Israel
- The Liver Research Laboratory, Hadassah Medical Center, Jerusalem 9112102, Israel
| | - Ann Saada
- Faculty of Medicine Hebrew, University of Jerusalem, Jerusalem 9112102, Israel; (R.L.); (A.S.)
- Department of Genetics, Hadassah Medical Center, Jerusalem 9112102, Israel
- Department of Medical Laboratory Sciences, Hadassah Academic College, Jerusalem 9101001, Israel
| | - Maik Hüttemann
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI 48201, USA; (T.A.); (L.P.); (T.E.R.); (P.T.M.); (J.W.); (J.B.)
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University, Detroit, MI 48201, USA
| | - Sarah Weksler-Zangen
- Faculty of Medicine Hebrew, University of Jerusalem, Jerusalem 9112102, Israel; (R.L.); (A.S.)
- The Hadassah Diabetes Center, Hadassah Medical Center, Jerusalem 9112102, Israel
- The Liver Research Laboratory, Hadassah Medical Center, Jerusalem 9112102, Israel
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Park SH, Helsley RN, Fadhul T, Willoughby JL, Noetzli L, Tu HC, Solheim MH, Fujisaka S, Pan H, Dreyfuss JM, Bons J, Rose J, King CD, Schilling B, Lusis AJ, Pan C, Gupta M, Kulkarni RN, Fitzgerald K, Kern PA, Divanovic S, Kahn CR, Softic S. Fructose Induced KHK-C Increases ER Stress and Modulates Hepatic Transcriptome to Drive Liver Disease in Diet-Induced and Genetic Models of NAFLD. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.27.525605. [PMID: 36747758 PMCID: PMC9900898 DOI: 10.1101/2023.01.27.525605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a liver manifestation of metabolic syndrome, and is estimated to affect one billion individuals worldwide. An increased intake of a high-fat diet (HFD) and sugar-sweetened beverages are risk-factors for NAFLD development, but how their combined intake promotes progression to a more severe form of liver injury is unknown. Here we show that fructose metabolism via ketohexokinase (KHK) C isoform increases endoplasmic reticulum (ER) stress in a dose dependent fashion, so when fructose is coupled with a HFD intake it leads to unresolved ER stress. Conversely, a liver-specific knockdown of KHK in C57BL/6J male mice consuming fructose on a HFD is adequate to improve the NAFLD activity score and exert a profound effect on the hepatic transcriptome. Overexpression of KHK-C in cultured hepatocytes is sufficient to induce ER stress in fructose free media. Upregulation of KHK-C is also observed in genetically obesity ob/ob, db/db and lipodystrophic FIRKO male mice, whereas KHK knockdown in these mice improves metabolic function. Additionally, in over 100 inbred strains of male or female mice hepatic KHK expression correlates positively with adiposity, insulin resistance, and liver triglycerides. Similarly, in 241 human subjects and their controls, hepatic Khk expression is upregulated in early, but not late stages of NAFLD. In summary, we describe a novel role of KHK-C in triggering ER stress, which offers a mechanistic understanding of how the combined intake of fructose and a HFD propagates the development of metabolic complications.
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Affiliation(s)
- Se-Hyung Park
- Department of Pediatrics, Division of Pediatric Gastroenterology, University of Kentucky College of Medicine, Lexington, KY. 40536
| | - Robert N. Helsley
- Department of Pediatrics, Division of Pediatric Gastroenterology, University of Kentucky College of Medicine, Lexington, KY. 40536
| | - Taghreed Fadhul
- Department of Pediatrics, Division of Pediatric Gastroenterology, University of Kentucky College of Medicine, Lexington, KY. 40536
| | | | | | - Ho-Chou Tu
- Alnylam Pharmaceuticals Inc., Cambridge, MA. 02142
| | - Marie H. Solheim
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA. 02215
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, 50931 Cologne, Germany
| | - Shiho Fujisaka
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA. 02215
- First Department of Internal Medicine, University of Toyama, Toyama 930-0194, Japan
| | - Hui Pan
- Bioinformatics and Biostatistics Core, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | - Jonathan M. Dreyfuss
- Bioinformatics and Biostatistics Core, Joslin Diabetes Center, Harvard Medical School, Boston, MA
| | - Joanna Bons
- Proteomics and Aging Center, Buck Institute for Research on Aging, Novato, CA 94945
| | - Jacob Rose
- Proteomics and Aging Center, Buck Institute for Research on Aging, Novato, CA 94945
| | - Christina D. King
- Proteomics and Aging Center, Buck Institute for Research on Aging, Novato, CA 94945
| | - Birgit Schilling
- Proteomics and Aging Center, Buck Institute for Research on Aging, Novato, CA 94945
| | - Aldons J. Lusis
- Department of Medicine/Division of Cardiology, Department of Human Genetics, A2-237 Center for the Health Sciences, University of California, Los Angeles, Los Angeles, CA USA
| | - Calvin Pan
- Department of Medicine/Division of Cardiology, Department of Human Genetics, A2-237 Center for the Health Sciences, University of California, Los Angeles, Los Angeles, CA USA
| | - Manoj Gupta
- Section of Islet Cell and Regenerative Biology, Joslin Diabetes Center; Harvard Stem Cell Institute, Harvard Medical School, Boston, MA 02215
| | - Rohit N. Kulkarni
- Section of Islet Cell and Regenerative Biology, Joslin Diabetes Center; Harvard Stem Cell Institute, Harvard Medical School, Boston, MA 02215
| | | | - Philip A. Kern
- Department of Medicine, Division of Endocrinology, University of Kentucky College of Medicine, Lexington, KY. 40536
| | - Senad Divanovic
- Department of Pediatrics, University of Cincinnati College of Medicine, Division of Immunobiology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229
| | - C. Ronald Kahn
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA. 02215
| | - Samir Softic
- Department of Pediatrics, Division of Pediatric Gastroenterology, University of Kentucky College of Medicine, Lexington, KY. 40536
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA. 02215
- Department of Pharmacology and Nutritional Sciences, University of Kentucky College of Medicine, Lexington, KY. 40536
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