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VanSant-Webb C, Low HK, Kuramoto J, Stanley CE, Qiang H, Su AY, Ross AN, Cooper CG, Cox JE, Summers SA, Evason KJ, Ducker GS. Phospholipid isotope tracing suggests β-catenin-driven suppression of phosphatidylcholine metabolism in hepatocellular carcinoma. Biochim Biophys Acta Mol Cell Biol Lipids 2024; 1869:159514. [PMID: 38795827 DOI: 10.1016/j.bbalip.2024.159514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 05/08/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024]
Abstract
Activating mutations in the CTNNB1 gene encoding β-catenin are among the most frequently observed oncogenic alterations in hepatocellular carcinoma (HCC). Profound alterations in lipid metabolism, including increases in fatty acid oxidation and transformation of the phospholipidome, occur in HCC with CTNNB1 mutations, but it is unclear what mechanisms give rise to these changes. We employed untargeted lipidomics and targeted isotope tracing to measure phospholipid synthesis activity in an inducible human liver cell line expressing mutant β-catenin, as well as in transgenic zebrafish with activated β-catenin-driven HCC. In both models, activated β-catenin expression was associated with large changes in the lipidome including conserved increases in acylcarnitines and ceramides and decreases in triglycerides. Lipid isotope tracing analysis in human cells revealed a reduction in phosphatidylcholine (PC) production rates as assayed by choline incorporation. We developed lipid isotope tracing analysis for zebrafish tumors and observed reductions in phosphatidylcholine synthesis by both the CDP-choline and PEMT pathways. The observed changes in the β-catenin-driven HCC phospholipidome suggest that zebrafish can recapitulate conserved features of HCC lipid metabolism and may serve as a model for identifying future HCC-specific lipid metabolic targets.
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Affiliation(s)
- Chad VanSant-Webb
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA; Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA
| | - Hayden K Low
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Junko Kuramoto
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA; Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA; Department of Pathology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Claire E Stanley
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Hantao Qiang
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Audrey Y Su
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA; Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA
| | - Alexis N Ross
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA; Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA
| | - Chad G Cooper
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - James E Cox
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112, USA
| | - Scott A Summers
- Department of Nutrition and Integrative Physiology, University of Utah College of Health, Salt Lake City, UT 84112, USA
| | - Kimberley J Evason
- Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA; Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA.
| | - Gregory S Ducker
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA; Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT 84112, USA.
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2
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Elkanawati RY, Sumiwi SA, Levita J. Impact of Lipids on Insulin Resistance: Insights from Human and Animal Studies. Drug Des Devel Ther 2024; 18:3337-3360. [PMID: 39100221 PMCID: PMC11298177 DOI: 10.2147/dddt.s468147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 07/24/2024] [Indexed: 08/06/2024] Open
Abstract
Insulin resistance (IR) is a complex pathological condition central to metabolic diseases such as type 2 diabetes mellitus (T2DM), cardiovascular disease, non-alcoholic fatty liver disease, and polycystic ovary syndrome (PCOS). This review evaluates the impact of lipids on insulin resistance (IR) by analyzing findings from human and animal studies. The articles were searched on the PubMed database using two keywords: (1) "Role of Lipids AND Insulin Resistance AND Humans" and (2) "Role of Lipids AND Insulin Resistance AND Animal Models". Studies in humans revealed that elevated levels of free fatty acids (FFAs) and triglycerides (TGs) are closely associated with reduced insulin sensitivity, and interventions like metformin and omega-3 fatty acids show potential benefits. In animal models, high-fat diets disrupt insulin signaling and increase inflammation, with lipid mediators such as diacylglycerol (DAG) and ceramides playing significant roles. DAG activates protein kinase C, which eventually impairs insulin signaling, while ceramides inhibit Akt/PKB, further contributing to IR. Understanding these mechanisms is crucial for developing effective prevention and treatment strategies for IR-related diseases.
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Affiliation(s)
- Rani Yulifah Elkanawati
- Master Program in Pharmacy, Faculty of Pharmacy, Padjadjaran University, Jawa Barat, West Java, 45363, Indonesia
| | - Sri Adi Sumiwi
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Padjadjaran University, Sumedang, West Java, 45363, Indonesia
| | - Jutti Levita
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Padjadjaran University, Sumedang, West Java, 45363, Indonesia
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Zhao X, Liu Z, Zhang Y, Pan Y, Wang T, Wang Z, Li Z, Zeng Q, Qian Y, Qiu J, Mu X. Developmental effects and lipid disturbances of zebrafish embryos exposed to three newly recognized bisphenol A analogues. ENVIRONMENT INTERNATIONAL 2024; 189:108795. [PMID: 38857550 DOI: 10.1016/j.envint.2024.108795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/29/2024] [Accepted: 05/31/2024] [Indexed: 06/12/2024]
Abstract
Bisphenol G (BPG), bisphenol M (BPM) and bisphenol TMC (BPTMC), are newly recognized analogues of bisphenol A (BPA), which have been detected in multiple environmental media. However, the understanding of their negative impacts on environmental health is limited. In this study, zebrafish embryos were exposed to BPA and the three analogues (0.1, 10, and 1000 μg/L) to identify their developmental toxic effects. According to our results, all of the three analogues induced significant developmental disorders on zebrafish embryos including inhibited yolk sac absorption, altered heart rate, and teratogenic effects. Oil Red O staining indicated lipid accumulation in the yolk sac region of zebrafish after bisphenol analogues exposure, which was consistent with the delayed yolk uptake. Untargeted lipidomic analysis indicated the abundance of triacylglycerols, ceramides and fatty acids was significantly altered by the three analogues. The combined analysis of lipidomics and transcriptomics results indicated BPG and BPM affected lipid metabolism by disrupting peroxisome proliferator-activated receptor pathway and interfering with lipid homeostasis and transport. This partly explained the morphological changes of embryos after bisphenol exposure. In conclusion, our study reveals that BPG, BPM and BPTMC possess acute and developmental toxicity toward zebrafish, and the developmental abnormalities are associated with the disturbances in lipid metabolism.
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Affiliation(s)
- Xiaoyu Zhao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Zaiteng Liu
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Yining Zhang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Yecan Pan
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Tiancai Wang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Zishuang Wang
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Zishu Li
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Qingxiao Zeng
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Yongzhong Qian
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Jing Qiu
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China.
| | - Xiyan Mu
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China.
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Wilkerson JL, Tatum SM, Holland WL, Summers SA. Ceramides are fuel gauges on the drive to cardiometabolic disease. Physiol Rev 2024; 104:1061-1119. [PMID: 38300524 DOI: 10.1152/physrev.00008.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 01/23/2024] [Accepted: 01/25/2024] [Indexed: 02/02/2024] Open
Abstract
Ceramides are signals of fatty acid excess that accumulate when a cell's energetic needs have been met and its nutrient storage has reached capacity. As these sphingolipids accrue, they alter the metabolism and survival of cells throughout the body including in the heart, liver, blood vessels, skeletal muscle, brain, and kidney. These ceramide actions elicit the tissue dysfunction that underlies cardiometabolic diseases such as diabetes, coronary artery disease, metabolic-associated steatohepatitis, and heart failure. Here, we review the biosynthesis and degradation pathways that maintain ceramide levels in normal physiology and discuss how the loss of ceramide homeostasis drives cardiometabolic pathologies. We highlight signaling nodes that sense small changes in ceramides and in turn reprogram cellular metabolism and stimulate apoptosis. Finally, we evaluate the emerging therapeutic utility of these unique lipids as biomarkers that forecast disease risk and as targets of ceramide-lowering interventions that ameliorate disease.
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Affiliation(s)
- Joseph L Wilkerson
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, Utah, United States
| | - Sean M Tatum
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, Utah, United States
| | - William L Holland
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, Utah, United States
| | - Scott A Summers
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, Utah, United States
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Bansal SK, Bansal MB. Pathogenesis of MASLD and MASH - role of insulin resistance and lipotoxicity. Aliment Pharmacol Ther 2024; 59 Suppl 1:S10-S22. [PMID: 38451123 DOI: 10.1111/apt.17930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 12/26/2023] [Accepted: 02/20/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND Insulin resistance and lipotoxicity are extremely interconnected but fundamental in setting the stage for the development of MASLD/MASH. AIM/METHODS A comprehensive literature search was performed and key themes were synthesised to provide insight into the underlying molecular mechanisms of insulin resistance and lipotoxicity in the liver, muscle, pancreas and adipose tissue and how organ cross-talk is fundamental to driving disease pathogenesis. RESULTS Classical thinking postulates that excess FFA load exceeds the storage capacity of adipose tissue, which is predicated upon both genetic and environmental factors. This results in insulin resistance and compensatory hyperinsulinaemia by pancreatic beta cells to overcome target organ insulin resistance. As adipocyte dysfunction worsens, not only are excess FFA delivered to other organs, including skeletal muscle, pancreas and liver but a pro-inflammatory milieu is established with increases in IL-6, TNF-α and changes in adipokine levels (increased leptin and decreased adiponectin). With increased intramuscular lipid accumulation, lipotoxic species decrease insulin signalling, reduce glucose uptake by downregulation of GLUT4 and decrease glycogen synthesis. With this additional reduced capacity, hyperglycaemia is further exacerbated and increased FFA are delivered to the liver. The liver has the largest capacity to oxidise fat and to adapt to these stressors and, therefore, has become the last line of defence for excess lipid storage and utilisation, the capacity of which may be impacted by genetic and environmental factors. However, when the liver can no longer keep up with increasing FFA delivery and DNL, lipotoxic species accumulate with ensuing mitochondrial dysfunction, increased ER stress, oxidant stress and inflammasome activation, all of which drive hepatocyte injury and apoptosis. The resulting wound healing response, marked by stellate cell activation, drives collagen accumulation, progressive fibrosis, and, ultimately, end organ failure and death. This vicious cycle and complex interplay between insulin resistance, hyperinsulinaemia, lipotoxicity and multi-directional cross-talk among different target organs are critical drivers of MASLD/MASH. CONCLUSIONS Targeting tissue-specific insulin resistance and hyperinsulinaemia while decreasing FFA load (lipotoxicity) through dietary and lifestyle changes remain the best upstream interventions.
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Affiliation(s)
- Shalini K Bansal
- Sidney Kimmel College of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Meena B Bansal
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Norris MK, Tippetts TS, Wilkerson JL, Nicholson RJ, Maschek JA, Levade T, Medin JA, Summers SA, Holland WL. Adiponectin overexpression improves metabolic abnormalities caused by acid ceramidase deficiency but does not prolong lifespan in a mouse model of Farber Disease. Mol Genet Metab Rep 2024; 39:101077. [PMID: 38595987 PMCID: PMC11002753 DOI: 10.1016/j.ymgmr.2024.101077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 03/23/2024] [Indexed: 04/11/2024] Open
Abstract
Farber Disease is a debilitating and lethal childhood disease of ceramide accumulation caused by acid ceramidase deficiency. The potent induction of a ligand-gated neutral ceramidase activity promoted by adiponectin may provide sufficient lowering of ceramides to allow for the treatment of Farber Disease. In vitro, adiponectin or adiponectin receptor agonist treatments lowered total ceramide concentrations in human fibroblasts from a patient with Farber Disease. However, adiponectin overexpression in a Farber Disease mouse model did not improve lifespan or immune infiltration. Intriguingly, mice heterozygous for the Farber Disease mutation were more prone to glucose intolerance and insulin resistance when fed a high-fat diet, and adiponectin overexpression protected from these metabolic perturbations. These studies suggest that adiponectin evokes a ceramidase activity that is not reliant on the functional expression of acid ceramidase, but indicates that additional strategies are required to ameliorate outcomes of Farber Disease.
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Affiliation(s)
- Marie K. Norris
- Department of Nutrition and Integrative Physiology, University of Utah College of Health, Salt Lake City, UT, USA
- Diabetes and Metabolism Research Center, University of Utah College of Medicine, Salt Lake City, UT, USA
| | - Trevor S. Tippetts
- Department of Nutrition and Integrative Physiology, University of Utah College of Health, Salt Lake City, UT, USA
- Diabetes and Metabolism Research Center, University of Utah College of Medicine, Salt Lake City, UT, USA
- Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Joseph L. Wilkerson
- Department of Nutrition and Integrative Physiology, University of Utah College of Health, Salt Lake City, UT, USA
- Diabetes and Metabolism Research Center, University of Utah College of Medicine, Salt Lake City, UT, USA
| | - Rebekah J. Nicholson
- Department of Nutrition and Integrative Physiology, University of Utah College of Health, Salt Lake City, UT, USA
- Diabetes and Metabolism Research Center, University of Utah College of Medicine, Salt Lake City, UT, USA
| | - J. Alan Maschek
- Metabolomics Core Facility, University of Utah, Salt Lake City, UT, USA
| | - Thierry Levade
- Laboratoire de Biochimie Métabolique, CHU Toulouse and INSERM U1037, Centre de Recherches en Cancérologie de Toulouse, Université Paul Sabatier, 31037 Toulouse, France
| | - Jeffrey A. Medin
- Departments of Pediatrics and Biochemistry, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Scott A. Summers
- Department of Nutrition and Integrative Physiology, University of Utah College of Health, Salt Lake City, UT, USA
- Diabetes and Metabolism Research Center, University of Utah College of Medicine, Salt Lake City, UT, USA
| | - William L. Holland
- Department of Nutrition and Integrative Physiology, University of Utah College of Health, Salt Lake City, UT, USA
- Diabetes and Metabolism Research Center, University of Utah College of Medicine, Salt Lake City, UT, USA
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Zhu T, Zhao H, Chao Y, Gao S, Dong X, Wang Z. Olanzapine-induced weight gain and lipid dysfunction in mice between different gender. Biomed Chromatogr 2024; 38:e5864. [PMID: 38551083 DOI: 10.1002/bmc.5864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 02/27/2024] [Accepted: 03/03/2024] [Indexed: 05/21/2024]
Abstract
As one of the most common antipsychotics, olanzapine may cause metabolic-related adverse effects, but it is still unknown how olanzapine alters lipid metabolism. In this study, we found that olanzapine-treated mice showed varying degrees of dyslipidemia, which was particularly pronounced in female mice. Based on ultra-performance liquid chromatography-quadrupole time-of-flight-MS (UPLC-Q-TOF-MS) technology and lipid metabolomics, we mapped the changes in lipid metabolism in olanzapine-treated mice and then compared the changes in lipid metabolism between male and female mice. There were 98 metabolic differentiators between the olanzapine-treated and control groups in females and 79 in males. These metabolites were glycerolipids, glycerophospholipids, fatty amides, and sphingolipids, which are involved in glycerolipid metabolism, glycerophospholipid metabolism, and fatty acid metabolism. These results suggest that olanzapine-induced changes in the levels of lipid metabolites are closely associated with disturbances in lipid metabolic pathways, which may underlie lipemia. This lipidome profiling study not only visualizes changes in lipid metabolism in liver tissue but also provides a foundation for understanding the regulatory pathways and mechanisms involved in olanzapine-induced lipid metabolism disorders. Furthermore, this study demonstrates differences in lipid metabolism between males and females, providing a reference for clinical treatment regimen selection.
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Affiliation(s)
- Tong Zhu
- School of Medicine, Shanghai University, Shanghai, China
- School of Life Sciences, Shanghai University, Shanghai, China
| | - Hongxia Zhao
- Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang, Zhanjiang, China
| | - Yufan Chao
- School of Medicine, Shanghai University, Shanghai, China
| | - Songyan Gao
- Institute of Translational Medicine, Shanghai University, Shanghai, China
| | - Xin Dong
- School of Medicine, Shanghai University, Shanghai, China
| | - Zuowei Wang
- School of Medicine, Shanghai University, Shanghai, China
- Division of Mood Disorders, Shanghai Hongkou Mental Health Center, Shanghai, China
- Clinical Research Center for Mental Health, School of Medicine, Shanghai University, Shanghai, China
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Lasher AT, Wang L, Hyun J, Summers SA, Sun LY. Unveiling ceramide dynamics: Shedding light on healthy aging in growth hormone-releasing hormone knockout mice. Aging Cell 2024:e14226. [PMID: 38808779 DOI: 10.1111/acel.14226] [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: 01/26/2024] [Revised: 04/05/2024] [Accepted: 04/29/2024] [Indexed: 05/30/2024] Open
Abstract
Dysregulation of growth hormone (GH) signaling consistently leads to increased lifespan in laboratory rodents, yet the precise mechanisms driving this extension remain unclear. Understanding the molecular underpinnings of the beneficial effects associated with GH deficiency could unveil novel therapeutic targets for promoting healthy aging and longevity. In our pursuit of identifying metabolites implicated in aging, we conducted an unbiased lipidomic analysis of serum samples from growth hormone-releasing hormone knockout (GHRH-KO) female mice and their littermate controls. Employing a targeted lipidomic approach, we specifically investigated ceramide levels in GHRH-KO mice, a well-established model of enhanced longevity. While younger GHRH-KO mice did not exhibit notable differences in serum lipids, older counterparts demonstrated significant reductions in over one-third of the evaluated lipids. In employing the same analysis in liver tissue, GHRH-KO mice showed pronounced downregulation of numerous ceramides and hexosylceramides, which have been shown to elicit many of the tissue defects that accompany aging (e.g., insulin resistance, oxidative stress, and cell death). Additionally, gene expression analysis in the liver tissue of adult GHRH-KO mice identified substantial decreases in several ceramide synthesis genes, indicating that these alterations are, at least in part, attributed to GHRH-KO-induced transcriptional changes. These findings provide the first evidence of disrupted ceramide metabolism in a long-lived mammal. This study sheds light on the intricate connections between GH deficiency, ceramide levels, and the molecular mechanisms influencing lifespan extension.
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Affiliation(s)
- Alexander Tate Lasher
- Department of Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Liping Wang
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, Utah, USA
| | - Jooyoung Hyun
- Department of Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Scott A Summers
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, Utah, USA
| | - Liou Y Sun
- Department of Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Kilic A, Emecen Sanli M, Ozsaydı Aktasoglu E, Gokalp S, Biberoğlu G, Inci A, Okur I, Suheyl Ezgu F, Tumer L. Endocrinological and metabolic profile of Gaucher disease patients treated with enzyme replacement therapy. J Pediatr Endocrinol Metab 2024; 37:413-418. [PMID: 38624096 DOI: 10.1515/jpem-2023-0504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 03/12/2024] [Indexed: 04/17/2024]
Abstract
OBJECTIVES Gaucher disease (GD) is a lysosomal storage disease caused by glucocerebrosidase (GCase) enzyme deficiency. Gaucher cells transformed from the macrophages by progressive sphingolipid accumulation and infiltrate bone marrow, spleen, liver, and other organs. The accumulation of substrate causes inflammation, compromised cellular homeostasis, and disturbed autophagy. It has been hypothesized that this proinflammatory state of GD leads cytokines and chemokines release. As a result of inflammatory process, the cellular dysfunction caused by disruption of cellular signaling, organelle dysfunction, or autoimmune antibodies may affect endocrine profile of GD patients such as hormone levels, lipid profile, and bone mineral density status. METHODS A total of 13 patients confirmed to have GD, 12 non-neuronopathic type and one subacute neuronopathic type, were enrolled in our study. RESULTS The median treatment duration in the enzyme therapy was 13.33 years (9-26 years). At least one endocrinological abnormality was detected in blood tests of nine patients. Hyperinsulinism was the most common finding although fasting blood glucose levels HgbA1c levels were normal in all patients. Two patients had osteopenia, and osteoporosis was detected in two patients. Low HDL levels were detected in six patients, but HDL levels below 23 mg/dL associated with disease severity have been detected in two patients who have not receiving enzyme replacement therapy. None of patients had thyroidal dysfunction. CONCLUSIONS This study had revealed endocrinological abnormalities in GD patients that have not led any severe morbidity in our patients. However, thyroid hormone abnormalities, insulin resistance, or lipid profile abnormalities may cause unpredictable comorbidities. Endocrinological assessment in GD patients in routine follow-up may prevent possible clinical manifestation in long term as well as can define efficacy of ERT on endocrine abnormalities.
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Affiliation(s)
- Ayse Kilic
- Department of Pediatrics, Department of Inborn Metabolic Diseases, Gazı University Faculty of Medicine, Eminiyet Mahallesi, Yenimahalle/Ankara, Türkiye
| | - Merve Emecen Sanli
- Department of Pediatrics, Department of Inborn Metabolic Diseases, Gazı University Faculty of Medicine, Eminiyet Mahallesi, Yenimahalle/Ankara, Türkiye
| | - Ekin Ozsaydı Aktasoglu
- Department of Pediatrics, Department of Inborn Metabolic Diseases, Gazı University Faculty of Medicine, Eminiyet Mahallesi, Yenimahalle/Ankara, Türkiye
| | - Sabire Gokalp
- Department of Pediatrics, Department of Inborn Metabolic Diseases, Gazı University Faculty of Medicine, Eminiyet Mahallesi, Yenimahalle/Ankara, Türkiye
| | - Gürsel Biberoğlu
- Department of Pediatrics, Department of Inborn Metabolic Diseases, Gazı University Faculty of Medicine, Eminiyet Mahallesi, Yenimahalle/Ankara, Türkiye
| | - Aslı Inci
- Department of Pediatrics, Department of Inborn Metabolic Diseases, Gazı University Faculty of Medicine, Eminiyet Mahallesi, Yenimahalle/Ankara, Türkiye
| | - Ilyas Okur
- Department of Pediatrics, Department of Inborn Metabolic Diseases, Gazı University Faculty of Medicine, Eminiyet Mahallesi, Yenimahalle/Ankara, Türkiye
| | - Fatih Suheyl Ezgu
- Department of Pediatrics, Department of Inborn Metabolic Diseases, Gazı University Faculty of Medicine, Eminiyet Mahallesi, Yenimahalle/Ankara, Türkiye
| | - Leyla Tumer
- Department of Pediatrics, Department of Inborn Metabolic Diseases, Gazı University Faculty of Medicine, Eminiyet Mahallesi, Yenimahalle/Ankara, Türkiye
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10
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Zhu Y, Cho K, Lacin H, Zhu Y, DiPaola JT, Wilson BA, Patti GJ, Skeath JB. Loss of dihydroceramide desaturase drives neurodegeneration by disrupting endoplasmic reticulum and lipid droplet homeostasis in glial cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.01.573836. [PMID: 38260379 PMCID: PMC10802327 DOI: 10.1101/2024.01.01.573836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Dihydroceramide desaturases convert dihydroceramides to ceramides, the precursors of all complex sphingolipids. Reduction of DEGS1 dihydroceramide desaturase function causes pediatric neurodegenerative disorder hypomyelinating leukodystrophy-18 (HLD-18). We discovered that infertile crescent (ifc), the Drosophila DEGS1 homolog, is expressed primarily in glial cells to promote CNS development by guarding against neurodegeneration. Loss of ifc causes massive dihydroceramide accumulation and severe morphological defects in cortex glia, including endoplasmic reticulum (ER) expansion, failure of neuronal ensheathment, and lipid droplet depletion. RNAi knockdown of the upstream ceramide synthase schlank in glia of ifc mutants rescues ER expansion, suggesting dihydroceramide accumulation in the ER drives this phenotype. RNAi knockdown of ifc in glia but not neurons drives neuronal cell death, suggesting that ifc function in glia promotes neuronal survival. Our work identifies glia as the primary site of disease progression in HLD-18 and may inform on juvenile forms of ALS, which also feature elevated dihydroceramide levels.
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Affiliation(s)
- Yuqing Zhu
- Department of Genetics, Washington University School of Medicine, 4523 Clayton Avenue, St. Louis, MO 63110, USA
| | - Kevin Cho
- Department of Chemistry, Washington University in St. Louis, One Brookings Drive, St. Louis, MO 63130, USA
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
- Center for Mass Spectrometry and Metabolic Tracing, Washington University in St. Louis, One Brookings Drive, St. Louis, MO 63130, USA
| | - Haluk Lacin
- Division of Biological and Biomedical Systems, University of Missouri-Kansas City, Kansas City, MO 64110, USA
| | - Yi Zhu
- Department of Genetics, Washington University School of Medicine, 4523 Clayton Avenue, St. Louis, MO 63110, USA
| | - Jose T DiPaola
- Department of Genetics, Washington University School of Medicine, 4523 Clayton Avenue, St. Louis, MO 63110, USA
| | - Beth A Wilson
- Department of Genetics, Washington University School of Medicine, 4523 Clayton Avenue, St. Louis, MO 63110, USA
| | - Gary J Patti
- Department of Chemistry, Washington University in St. Louis, One Brookings Drive, St. Louis, MO 63130, USA
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
- Center for Mass Spectrometry and Metabolic Tracing, Washington University in St. Louis, One Brookings Drive, St. Louis, MO 63130, USA
| | - James B Skeath
- Department of Genetics, Washington University School of Medicine, 4523 Clayton Avenue, St. Louis, MO 63110, USA
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Łukaszuk B, Supruniuk E, Chabowski A, Mikłosz A. Adipose tissue place of origin and obesity influence sphingolipid signaling pathway in the adipocytes differentiated from ADMSCs isolated from morbidly obese women. Biochem Pharmacol 2024; 223:116158. [PMID: 38521475 DOI: 10.1016/j.bcp.2024.116158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/23/2024] [Accepted: 03/19/2024] [Indexed: 03/25/2024]
Abstract
Adipose derived mesenchymal stem cells (ADMSCs) are a component of adipose tissue that in recent years has gained on importance. The progenitor cells serve as an essentially unlimited source of new adipocytes and therefore are considered to be an important determinant of the tissue's physiology. In this paper we investigated mature adipocytes differentiated from ADMSCs obtained from subcutaneous/visceral fat of patients with different metabolic status (lean, obese without and with metabolic syndrome). We focused our interests on the sphingolipid signaling pathway, i.e.a signal transduction system indispensable for cells functioning, but also implicated in the development of medical conditions associated with obesity. We observed that the cells derived from visceral tissue had significantly greater levels of almost all the examined sphingolipids (especially Cer, dhCer, SM). Moreover, obesity and metabolic syndrome present in donor patients was associated with an increased level of sphingosine kinase (SPHK) and the product of its reaction sphingosine-1-phosphate (S1P). Moreover, the condition appeared to display a tissue specific pattern. Namely, the adipocytes of subcutaneous provenance had an increased activation of ceramide de novo synthesis pathway when the donors of ADMSCs had metabolic syndrome. The above translated into greater accumulation of ceramide in the cells. To our knowledge this is the first study that demonstrated altered sphingolipid profile in the mature adipocytes differentiated from ADMSCs with respect to the stem cells tissue of origin and the donor patient metabolic status.
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Affiliation(s)
- Bartłomiej Łukaszuk
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland.
| | - Elżbieta Supruniuk
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland
| | - Adrian Chabowski
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland
| | - Agnieszka Mikłosz
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland
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12
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Rustamov J, Roh YS, Hong JT, Yoo HS. GT-11 impairs insulin signaling through modulation of sphingolipid metabolism in C2C12 myotubes. Life Sci 2024; 342:122534. [PMID: 38408637 DOI: 10.1016/j.lfs.2024.122534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 02/18/2024] [Accepted: 02/22/2024] [Indexed: 02/28/2024]
Abstract
AIMS Sphingolipids are involved in the regulation of insulin signaling, which is linked to the development of insulin resistance, leading to diabetes mellitus. We aimed to study whether modulation of sphingolipid levels by GT-11 may regulate insulin signaling in C2C12 myotubes. MAIN METHODS We investigated the effects of sphingolipid metabolism on Akt phosphorylation and glucose uptake using C2C12 myotubes. Either GT-11, an inhibitor of dihydroceramide desaturase 1 and S1P lyase, or siRNA targeting Sgpl1, the gene encoding the enzyme, was employed to determine the effect of sphingolipid metabolism modulation on insulin signaling. Western blotting and glucose uptake assays were used to evaluate the effect of treatments on insulin signaling. Sphingolipid metabolites were analyzed by high performance liquid chromatography (HPLC). KEY FINDINGS Treatment with GT-11 resulted in decreased Akt phosphorylation and reduced glucose uptake. Silencing the Sgpl1 gene, which encodes S1P lyase, mimicked these findings, suggesting the potential for regulating insulin signaling through S1P lyase modulation. GT-11 modulated sphingolipid metabolism, inducing the accumulation of sphingolipids. Using PF-543 and ARN14974 to inhibit sphingosine kinases and acid ceramidase, respectively, we identified a significant interplay between sphingosine, S1P lyase, and insulin signaling. Treatment with either exogenous sphingosine or palmitic acid inhibited Akt phosphorylation, and reduced S1P lyase activity. SIGNIFICANCE Our findings highlight the importance of close relationship between sphingolipid metabolism and insulin signaling in C2C12 myotubes, pointing to its potential therapeutic relevance for diabetes mellitus.
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Affiliation(s)
- Javokhir Rustamov
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Heungduk-gu, Cheongju, Republic of Korea
| | - Yoon-Seok Roh
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Heungduk-gu, Cheongju, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Heungduk-gu, Cheongju, Republic of Korea
| | - Hwan-Soo Yoo
- College of Pharmacy, Chungbuk National University, Osongsaengmyeong 1-ro, Heungduk-gu, Cheongju, Republic of Korea.
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13
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Wohlwend M, Laurila PP, Goeminne LJE, Lima T, Daskalaki I, Li X, von Alvensleben G, Crisol B, Mangione R, Gallart-Ayala H, Lalou A, Burri O, Butler S, Morris J, Turner N, Ivanisevic J, Auwerx J. Inhibition of CERS1 in skeletal muscle exacerbates age-related muscle dysfunction. eLife 2024; 12:RP90522. [PMID: 38506902 PMCID: PMC10954306 DOI: 10.7554/elife.90522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024] Open
Abstract
Age-related muscle wasting and dysfunction render the elderly population vulnerable and incapacitated, while underlying mechanisms are poorly understood. Here, we implicate the CERS1 enzyme of the de novo sphingolipid synthesis pathway in the pathogenesis of age-related skeletal muscle impairment. In humans, CERS1 abundance declines with aging in skeletal muscle cells and, correlates with biological pathways involved in muscle function and myogenesis. Furthermore, CERS1 is upregulated during myogenic differentiation. Pharmacological or genetic inhibition of CERS1 in aged mice blunts myogenesis and deteriorates aged skeletal muscle mass and function, which is associated with the occurrence of morphological features typical of inflammation and fibrosis. Ablation of the CERS1 orthologue lagr-1 in Caenorhabditis elegans similarly exacerbates the age-associated decline in muscle function and integrity. We discover genetic variants reducing CERS1 expression in human skeletal muscle and Mendelian randomization analysis in the UK biobank cohort shows that these variants reduce muscle grip strength and overall health. In summary, our findings link age-related impairments in muscle function to a reduction in CERS1, thereby underlining the importance of the sphingolipid biosynthesis pathway in age-related muscle homeostasis.
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Affiliation(s)
- Martin Wohlwend
- Laboratory of Integrative Systems Physiology, École Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Pirkka-Pekka Laurila
- Laboratory of Integrative Systems Physiology, École Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Ludger JE Goeminne
- Laboratory of Integrative Systems Physiology, École Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Tanes Lima
- Laboratory of Integrative Systems Physiology, École Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Ioanna Daskalaki
- Laboratory of Integrative Systems Physiology, École Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Xiaoxu Li
- Laboratory of Integrative Systems Physiology, École Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Giacomo von Alvensleben
- Laboratory of Integrative Systems Physiology, École Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Barbara Crisol
- Laboratory of Integrative Systems Physiology, École Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Renata Mangione
- Laboratory of Integrative Systems Physiology, École Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Hector Gallart-Ayala
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne (UNIL)LausanneSwitzerland
| | - Amélia Lalou
- Laboratory of Integrative Systems Physiology, École Polytechnique Fédérale de LausanneLausanneSwitzerland
| | - Olivier Burri
- Bioimaging and optics platform, École polytechnique fédérale de Lausanne (EPFL)LausanneSwitzerland
| | - Stephen Butler
- School of Chemistry, University of New South Wales SydneySydneyAustralia
| | - Jonathan Morris
- School of Chemistry, University of New South Wales SydneySydneyAustralia
| | - Nigel Turner
- Cellular Bioenergetics Laboratory, Victor Chang Cardiac Research InstituteDarlinghurstAustralia
- School of Biomedical Sciences, University of New South Wales SydneySydneyAustralia
| | - Julijana Ivanisevic
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne (UNIL)LausanneSwitzerland
| | - Johan Auwerx
- Laboratory of Integrative Systems Physiology, École Polytechnique Fédérale de LausanneLausanneSwitzerland
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14
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Seal A, Hughes M, Wei F, Pugazhendhi AS, Ngo C, Ruiz J, Schwartzman JD, Coathup MJ. Sphingolipid-Induced Bone Regulation and Its Emerging Role in Dysfunction Due to Disease and Infection. Int J Mol Sci 2024; 25:3024. [PMID: 38474268 DOI: 10.3390/ijms25053024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/02/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
The human skeleton is a metabolically active system that is constantly regenerating via the tightly regulated and highly coordinated processes of bone resorption and formation. Emerging evidence reveals fascinating new insights into the role of sphingolipids, including sphingomyelin, sphingosine, ceramide, and sphingosine-1-phosphate, in bone homeostasis. Sphingolipids are a major class of highly bioactive lipids able to activate distinct protein targets including, lipases, phosphatases, and kinases, thereby conferring distinct cellular functions beyond energy metabolism. Lipids are known to contribute to the progression of chronic inflammation, and notably, an increase in bone marrow adiposity parallel to elevated bone loss is observed in most pathological bone conditions, including aging, rheumatoid arthritis, osteoarthritis, and osteomyelitis. Of the numerous classes of lipids that form, sphingolipids are considered among the most deleterious. This review highlights the important primary role of sphingolipids in bone homeostasis and how dysregulation of these bioactive metabolites appears central to many chronic bone-related diseases. Further, their contribution to the invasion, virulence, and colonization of both viral and bacterial host cell infections is also discussed. Many unmet clinical needs remain, and data to date suggest the future use of sphingolipid-targeted therapy to regulate bone dysfunction due to a variety of diseases or infection are highly promising. However, deciphering the biochemical and molecular mechanisms of this diverse and extremely complex sphingolipidome, both in terms of bone health and disease, is considered the next frontier in the field.
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Affiliation(s)
- Anouska Seal
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
| | - Megan Hughes
- School of Biosciences, Cardiff University, Cardiff CF10 3AT, UK
| | - Fei Wei
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Abinaya S Pugazhendhi
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Christopher Ngo
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Jonathan Ruiz
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | | | - Melanie J Coathup
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
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15
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Bae JC, Wander PL, Lemaitre RN, Fretts AM, Sitlani CM, Bui HH, Thomas MK, Leonetti D, Fujimoto WY, Boyko EJ, Utzschneider KM. Associations of plasma sphingolipids with measures of insulin sensitivity, β-cell function, and incident diabetes in Japanese Americans. Nutr Metab Cardiovasc Dis 2024; 34:633-641. [PMID: 38161124 PMCID: PMC10922320 DOI: 10.1016/j.numecd.2023.10.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 10/18/2023] [Accepted: 10/23/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND AND AIMS To prospectively investigate associations of plasma sphingolipids with insulin sensitivity, β-cell function, and incident diabetes in the Japanese American Community Diabetes Study. METHODS AND RESULTS Baseline plasma samples from adults without diabetes (n = 349; mean age 56.7 years, 51 % men) were assayed for circulating ceramide and sphingomyelin species. Adjusted regression models examined cross-sectional and longitudinal associations with insulin sensitivity (HOMA2-%S), β-cell function (oral disposition index: DIo) and with incident diabetes over 5 years follow-up. Concentrations of four species (Ceramide C16:0, C18:0, C20:0, and C22:0) were inversely associated with HOMA2-%S at baseline (all P values < 0.05, Q values < 0.05) and change in HOMA2-%S over 5 years (all P values < 0.05, Q values < 0.05). No sphingolipids were associated with baseline or change in DIo. Of the four species associated with HOMA2-%S, only Ceramide C18:0 was significantly and positively associated with incident diabetes (RR/1SD 1.44, 95 % CI 1.10-1.80, P = 0.006, Q = 0.024). The association of plasma Ceramide C18:0 with the risk of diabetes was partially mediated by change in HOMA2-%S between baseline and 5 years (mediation proportion: 61.5 %, 95 % CI 21.1%-212.5 %). CONCLUSION Plasma Ceramide C18:0 was associated with higher risk of incident diabetes which was partially mediated through a decrease in insulin sensitivity between baseline and five years. Circulating Ceramide C18:0 could be a potential biomarker for identifying those at risk of developing diabetes.
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Affiliation(s)
- Ji Cheol Bae
- Division of Endocrinology and Metabolism, Department of Medicine, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, South Korea
| | - Pandora L Wander
- Veterans Affairs Puget Sound Health Care System, Seattle, WA, United States
| | - Rozenn N Lemaitre
- Department of Medicine, University of Washington, Seattle, WA, United States
| | - Amanda M Fretts
- Department of Epidemiology, University of Washington, Seattle, WA, United States
| | - Colleen M Sitlani
- Department of Medicine, University of Washington, Seattle, WA, United States
| | - Hai H Bui
- Eli Lilly and Company, Indianapolis, IN, United States
| | | | - Donna Leonetti
- Department of Anthropology, University of Washington, Seattle, WA, United States
| | - Wilfred Y Fujimoto
- Department of Medicine, University of Washington, Seattle, WA, United States
| | - Edward J Boyko
- Veterans Affairs Puget Sound Health Care System, Seattle, WA, United States; Department of Medicine, University of Washington, Seattle, WA, United States
| | - Kristina M Utzschneider
- Veterans Affairs Puget Sound Health Care System, Seattle, WA, United States; Department of Medicine, University of Washington, Seattle, WA, United States.
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16
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Tawara W, Morisasa M, Mukai R, Suo R, Itoi S, Mori T, Goto-Inoue N. A lipidomics approach reveals novel phospholipid changes in palmitate-treated C2C12 myotubes. Lipids 2024; 59:55-63. [PMID: 38299442 DOI: 10.1002/lipd.12387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 02/02/2024]
Abstract
Type 2 diabetes mellitus (T2DM) is a highly prevalent metabolic disorder. Insulin resistance and oxidative stress are associated with T2DM development. The hypothesis that patients with T2DM show excess accumulation of lipids, such as ceramides (Cers) and diacylglycerols (DAGs), in their skeletal muscles has been widely supported; however, detailed lipidomic data at the molecular species level are limited. Therefore, in this study, we aimed to investigate the in vitro dynamics of total lipids, including phospholipids (PLs), sphingolipids, and neutral lipids, in palmitic acid-induced insulin-resistant C2C12 skeletal muscle cells. Our data demonstrated that the profiles of not only Cers and DAGs but also those of PLs showed considerably differences after palmitate treatment. We found that PL synthesis reduced and PL degradation increased after palmitate treatment. These findings may aid in the development of treatments to ameliorate muscle dysfunction caused by lipid accumulation in muscles.
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Affiliation(s)
- Wakako Tawara
- Department of Marine Sciences, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Mizuki Morisasa
- Department of Marine Sciences, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Risa Mukai
- Department of Marine Sciences, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Rei Suo
- Department of Marine Sciences, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Shiro Itoi
- Department of Marine Sciences, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Tsukasa Mori
- Department of Marine Sciences, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
| | - Naoko Goto-Inoue
- Department of Marine Sciences, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, Japan
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17
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Mourad S, Abdualkader AM, Li X, Jani S, Ceddia RB, Al Batran R. A high-fat diet supplemented with medium-chain triglycerides ameliorates hepatic steatosis by reducing ceramide and diacylglycerol accumulation in mice. Exp Physiol 2024; 109:350-364. [PMID: 38192209 PMCID: PMC10988743 DOI: 10.1113/ep091545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/12/2023] [Indexed: 01/10/2024]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is projected to be the most common chronic liver disease worldwide and is closely linked to obesity, insulin resistance and type 2 diabetes. Currently, no pharmacological treatments are available to treat NAFLD, and lifestyle modification, including dietary interventions, is the only remedy. Therefore, we conducted a study to determine whether supplementation with medium-chain triglycerides (MCTs), containing a mixture of C8 and C10 (60/40), attenuates NAFLD in obese and insulin-resistant mice. To achieve that, we fed C57BL/6 male mice a high-fat diet (HFD) for 12 weeks to induce obesity and hepatic steatosis, after which obese mice were assigned randomly either to remain on the HFD or to transition to an HFD supplemented with MCTs (HFD + MCTs) or a low-fat diet (LFD) for 6 weeks as another dietary intervention model. Another group of mice was kept on an LFD throughout the study and used as a lean control group. Obese mice that transitioned to HFD + MCTs exhibited improvement in glucose and insulin tolerance tests, and the latter improvement was independent of changes in adiposity when compared with HFD-fed mice. Additionally, supplementation with MCTs significantly reduced hepatic steatosis, improved liver enzymes and decreased hepatic expression of inflammation-related genes to levels similar to those observed in obese mice transitioned to an LFD. Importantly, HFD + MCTs markedly lowered hepatic ceramide and diacylglycerol content and prevented protein kinase C-ε translocation to the plasma membrane. Our study demonstrated that supplementation with MCTs formulated mainly from C8 and C10 effectively ameliorated NAFLD in obese mice.
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Affiliation(s)
- Stephanie Mourad
- Faculty of PharmacyUniversité de MontréalMontréalQuebecCanada
- Montreal Diabetes Research CenterMontréalQuebecCanada
- Cardiometabolic Health, Diabetes and Obesity Research NetworkMontréalQuebecCanada
| | - Abdualrahman Mohammed Abdualkader
- Faculty of PharmacyUniversité de MontréalMontréalQuebecCanada
- Montreal Diabetes Research CenterMontréalQuebecCanada
- Cardiometabolic Health, Diabetes and Obesity Research NetworkMontréalQuebecCanada
| | - Xiaobei Li
- Faculty of PharmacyUniversité de MontréalMontréalQuebecCanada
- Montreal Diabetes Research CenterMontréalQuebecCanada
- Cardiometabolic Health, Diabetes and Obesity Research NetworkMontréalQuebecCanada
| | - Shailee Jani
- Muscle Health Research Center, School of Kinesiology and Health ScienceYork UniversityNorth YorkOntarioCanada
| | - Rolando B. Ceddia
- Muscle Health Research Center, School of Kinesiology and Health ScienceYork UniversityNorth YorkOntarioCanada
| | - Rami Al Batran
- Faculty of PharmacyUniversité de MontréalMontréalQuebecCanada
- Montreal Diabetes Research CenterMontréalQuebecCanada
- Cardiometabolic Health, Diabetes and Obesity Research NetworkMontréalQuebecCanada
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18
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Zhang J, Wang L, Jiang M. Diagnostic value of sphingolipid metabolism-related genes CD37 and CXCL9 in nonalcoholic fatty liver disease. Medicine (Baltimore) 2024; 103:e37185. [PMID: 38394483 PMCID: PMC11309649 DOI: 10.1097/md.0000000000037185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Accepted: 01/17/2024] [Indexed: 02/25/2024] Open
Abstract
The development of nonalcoholic fatty liver disease (NAFLD) has been reported to be caused by sphingolipid family inducing insulin resistance, mitochondrial dysfunction, and inflammation, which can be regulated by multiple sphingolipid metabolic pathways. This study aimed to explore the molecular mechanism of crucial sphingolipid metabolism related genes (SMRGs) in NAFLD. Firstly, the datasets (GSE48452, GSE126848, and GSE63067) from the Gene Expression Omnibus database and sphingolipid metabolism genes (SMGs) from previous research were collected for this study. The differentially expressed genes (DEGs) between different NAFLD and controls were acquired through "limma," and the SMRGs were authenticated via weighted gene co-expression network analysis (WGCNA). After overlapping the DEGs and SMRGs, the causality between the intersection genes (DE-SMRGs) and NAFLD was explored to sort out the candidate biomarkers by Mendelian randomization (MR) study. The receiver operating characteristic (ROC) curves of candidate biomarkers in GSE48452 and GSE126848 were yielded to determine the biomarkers, followed by the nomogram construction and enrichment analysis. Finally, the immune infiltration analysis, the prediction of transcription factors (TFs) and drugs targeting biomarkers were put into effect. A total of 23 DE-SMRGs were acquired based on the differential analysis and weighted gene co-expression network analysis (WGCNA), of which 3 DE-SMRGs (CD37, CXCL9 and IL7R) were picked out for follow-up analysis through univariate and multivariate MR analysis. The values of area under ROC curve of CD37 and CXCL9 were >0.7 in GSE48452 and GSE126848, thereby being regarded as biomarkers, which were mainly enriched in amino acid metabolism. With respect to the Spearman analysis between immune cells and biomarkers, CD37 and CXCL9 were significantly positively associated with M1 macrophages (P < .001), whose proportion was observably higher in NAFLD patients compared with controls. At last, TFs (ZNF460 and ZNF384) of CD37 and CXCL9 and a total of 79 chemical drugs targeting CD37 and CXCL9 were predicted. This study mined the pivotal SMRGs, CD37 and CXCL9, and systematically explored the mechanism of action of both biomarkers based on the public databases, which could tender a fresh reference for the clinical diagnosis and therapy of NAFLD.
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Affiliation(s)
- Jiayi Zhang
- Queen Mary School, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Lingfang Wang
- The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
| | - Meixiu Jiang
- The National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
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19
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Szablewski L. Changes in Cells Associated with Insulin Resistance. Int J Mol Sci 2024; 25:2397. [PMID: 38397072 PMCID: PMC10889819 DOI: 10.3390/ijms25042397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 02/10/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
Insulin is a polypeptide hormone synthesized and secreted by pancreatic β-cells. It plays an important role as a metabolic hormone. Insulin influences the metabolism of glucose, regulating plasma glucose levels and stimulating glucose storage in organs such as the liver, muscles and adipose tissue. It is involved in fat metabolism, increasing the storage of triglycerides and decreasing lipolysis. Ketone body metabolism also depends on insulin action, as insulin reduces ketone body concentrations and influences protein metabolism. It increases nitrogen retention, facilitates the transport of amino acids into cells and increases the synthesis of proteins. Insulin also inhibits protein breakdown and is involved in cellular growth and proliferation. On the other hand, defects in the intracellular signaling pathways of insulin may cause several disturbances in human metabolism, resulting in several chronic diseases. Insulin resistance, also known as impaired insulin sensitivity, is due to the decreased reaction of insulin signaling for glucose levels, seen when glucose use in response to an adequate concentration of insulin is impaired. Insulin resistance may cause, for example, increased plasma insulin levels. That state, called hyperinsulinemia, impairs metabolic processes and is observed in patients with type 2 diabetes mellitus and obesity. Hyperinsulinemia may increase the risk of initiation, progression and metastasis of several cancers and may cause poor cancer outcomes. Insulin resistance is a health problem worldwide; therefore, mechanisms of insulin resistance, causes and types of insulin resistance and strategies against insulin resistance are described in this review. Attention is also paid to factors that are associated with the development of insulin resistance, the main and characteristic symptoms of particular syndromes, plus other aspects of severe insulin resistance. This review mainly focuses on the description and analysis of changes in cells due to insulin resistance.
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Affiliation(s)
- Leszek Szablewski
- Chair and Department of General Biology and Parasitology, Medical University of Warsaw, Chałubińskiego Str. 5, 02-004 Warsaw, Poland
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20
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Reinisch I, Michenthaler H, Sulaj A, Moyschewitz E, Krstic J, Galhuber M, Xu R, Riahi Z, Wang T, Vujic N, Amor M, Zenezini Chiozzi R, Wabitsch M, Kolb D, Georgiadi A, Glawitsch L, Heitzer E, Schulz TJ, Schupp M, Sun W, Dong H, Ghosh A, Hoffmann A, Kratky D, Hinte LC, von Meyenn F, Heck AJR, Blüher M, Herzig S, Wolfrum C, Prokesch A. Adipocyte p53 coordinates the response to intermittent fasting by regulating adipose tissue immune cell landscape. Nat Commun 2024; 15:1391. [PMID: 38360943 PMCID: PMC10869344 DOI: 10.1038/s41467-024-45724-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 02/02/2024] [Indexed: 02/17/2024] Open
Abstract
In obesity, sustained adipose tissue (AT) inflammation constitutes a cellular memory that limits the effectiveness of weight loss interventions. Yet, the impact of fasting regimens on the regulation of AT immune infiltration is still elusive. Here we show that intermittent fasting (IF) exacerbates the lipid-associated macrophage (LAM) inflammatory phenotype of visceral AT in obese mice. Importantly, this increase in LAM abundance is strongly p53 dependent and partly mediated by p53-driven adipocyte apoptosis. Adipocyte-specific deletion of p53 prevents LAM accumulation during IF, increases the catabolic state of adipocytes, and enhances systemic metabolic flexibility and insulin sensitivity. Finally, in cohorts of obese/diabetic patients, we describe a p53 polymorphism that links to efficacy of a fasting-mimicking diet and that the expression of p53 and TREM2 in AT negatively correlates with maintaining weight loss after bariatric surgery. Overall, our results demonstrate that p53 signalling in adipocytes dictates LAM accumulation in AT under IF and modulates fasting effectiveness in mice and humans.
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Affiliation(s)
- Isabel Reinisch
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Division of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria
- Institute of Food Nutrition and Health, Department of Health Sciences and Technology, Eidgenössische Technische Hochschule Zürich (ETH), Schwerzenbach, Switzerland
| | - Helene Michenthaler
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Division of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria
| | - Alba Sulaj
- Institute for Diabetes and Cancer, Helmholtz Munich, German Center for Diabetes Research (DZD), Neuherberg, Germany
- Department of Endocrinology, Diabetology, Metabolism and Clinical Chemistry (Internal Medicine 1), Heidelberg University Hospital, Heidelberg, Germany
| | - Elisabeth Moyschewitz
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Division of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria
| | - Jelena Krstic
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Division of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria
| | - Markus Galhuber
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Division of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria
| | - Ruonan Xu
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Division of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria
| | - Zina Riahi
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Division of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria
| | - Tongtong Wang
- Institute of Food Nutrition and Health, Department of Health Sciences and Technology, Eidgenössische Technische Hochschule Zürich (ETH), Schwerzenbach, Switzerland
| | - Nemanja Vujic
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Melina Amor
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
| | - Riccardo Zenezini Chiozzi
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Martin Wabitsch
- Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Dagmar Kolb
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Division of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria
- Core Facility Ultrastructure Analysis, Medical University of Graz, Graz, Austria
| | - Anastasia Georgiadi
- Institute for Diabetes and Cancer, Helmholtz Munich, German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Lisa Glawitsch
- Institute of Human Genetics, Diagnostic and Research Center for Molecular BioMedicine, Medical University of Graz, Graz, Austria
| | - Ellen Heitzer
- Institute of Human Genetics, Diagnostic and Research Center for Molecular BioMedicine, Medical University of Graz, Graz, Austria
| | - Tim J Schulz
- Department of Adipocyte Development and Nutrition, German Institute of Human Nutrition, Nuthetal, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- University of Potsdam, Institute of Nutritional Science, Nuthetal, Germany
| | - Michael Schupp
- Institute of Pharmacology, Max Rubner Center (MRC) for Cardiovascular Metabolic Renal Research, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Wenfei Sun
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Hua Dong
- Stem Cell Biology and Regenerative Medicine Institute, University of Stanford, Stanford, CA, USA
| | - Adhideb Ghosh
- Institute of Food Nutrition and Health, Department of Health Sciences and Technology, Eidgenössische Technische Hochschule Zürich (ETH), Schwerzenbach, Switzerland
- Functional Genomics Center Zurich, Eidgenössische Technische Hochschule Zürich (ETH), Zurich, Switzerland
| | - Anne Hoffmann
- Helmholtz Institute for Metabolic Obesity and Vascular Research (HI-MAG) of the Helmholtz Center Munich at the University of Leipzig and University Hospital Leipzig, Leipzig, Germany
| | - Dagmar Kratky
- Gottfried Schatz Research Center, Molecular Biology and Biochemistry, Medical University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
| | - Laura C Hinte
- Laboratory of Nutrition and Metabolic Epigenetics, Institute for Food, Nutrition and Health, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Ferdinand von Meyenn
- Laboratory of Nutrition and Metabolic Epigenetics, Institute for Food, Nutrition and Health, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Albert J R Heck
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Matthias Blüher
- Department of Medicine, University of Leipzig, Leipzig, Germany
| | - Stephan Herzig
- Institute for Diabetes and Cancer, Helmholtz Munich, German Center for Diabetes Research (DZD), Neuherberg, Germany
- Department of Endocrinology, Diabetology, Metabolism and Clinical Chemistry (Internal Medicine 1), Heidelberg University Hospital, Heidelberg, Germany
| | - Christian Wolfrum
- Institute of Food Nutrition and Health, Department of Health Sciences and Technology, Eidgenössische Technische Hochschule Zürich (ETH), Schwerzenbach, Switzerland
| | - Andreas Prokesch
- Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Division of Cell Biology, Histology and Embryology, Medical University of Graz, Graz, Austria.
- BioTechMed-Graz, Graz, Austria.
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de Hart NMMP, Petrocelli JJ, Nicholson RJ, Yee EM, van Onselen L, Lang MJ, Bourrant PE, Ferrara PJ, Bastian ED, Ward LS, Petersen BL, Drummond MJ. Dietary delivery of glycomacropeptide within the whey protein matrix is not effective in mitigating tissue ceramide deposition and obesity in mice fed a high-fat diet. J Dairy Sci 2024; 107:669-682. [PMID: 37709040 PMCID: PMC11110038 DOI: 10.3168/jds.2023-23914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 08/28/2023] [Indexed: 09/16/2023]
Abstract
Obesity is often accompanied by heightened circulating and tissue inflammation along with an increase in sphingolipids (e.g., ceramides) in metabolically active and insulin-sensitive organs. Whey protein isolate (WPI) has been shown to decrease inflammation and increase insulin sensitivity when given during a high-fat diet (HFD) intervention in rodents. The whey protein bioactive peptide glycomacropeptide (GMP) has also been linked to having anti-inflammatory properties and regulating lipogenesis. Therefore, the purpose of the study was to determine the effect of dietary GMP within the whey protein matrix on tissue inflammation, adiposity, and tissue ceramide accumulation in an obesogenic rodent model. Young adult male mice (10 wk old) underwent a 10-wk 60% HFD intervention. Glycomacropeptide was absent in the control low-fat diet and HFD WPI (-GMP) groups. The HFD WPI (1×GMP) treatment contained a standard amount of GMP, and HFD WPI (2×GMP) had double the amount. We observed no differences in weight gain or reductions in adiposity when comparing the GMP groups to HFD WPI (-GMP). Similarly, insulin resistance and glucose intolerance were not offset with GMP, and skeletal muscle and liver tissue ceramide content was unaltered with the GMP intervention. In contrast, the additional amount of GMP (2×GMP) might adversely affect tissue obesity-related pathologies. Together, dietary GMP given in a whey protein matrix during an HFD intervention does not alter weight gain, insulin resistance, glucose intolerance, and sphingolipid accumulation in the liver and skeletal muscle.
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Affiliation(s)
- Naomi M M P de Hart
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT 84112
| | - Jonathan J Petrocelli
- Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, UT 84108
| | - Rebekah J Nicholson
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT 84112
| | - Elena M Yee
- Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, UT 84108
| | - Lisha van Onselen
- Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, UT 84108
| | - Marisa J Lang
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT 84112
| | - Paul-Emile Bourrant
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT 84112
| | - Patrick J Ferrara
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT 84112
| | - Eric D Bastian
- Dairy West Innovation Partnerships, Twin Falls, ID 83301
| | - Loren S Ward
- Glanbia Nutritionals Research, Twin Falls, ID 83301
| | | | - Micah J Drummond
- Department of Nutrition and Integrative Physiology, University of Utah, Salt Lake City, UT 84112; Department of Physical Therapy and Athletic Training, University of Utah, Salt Lake City, UT 84108.
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22
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Wang J, Wang D, Lu S, Hu Y, Ge Y, Qin X, Mo Y, Kan J, Li D, Zhang R, Liu Y, Zhang WS. Ceramide enhanced the hepatic glucagon response through regulation of CREB activity. Clin Nutr 2024; 43:366-378. [PMID: 38142481 DOI: 10.1016/j.clnu.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 12/08/2023] [Indexed: 12/26/2023]
Abstract
BACKGROUND & AIMS Hyperglycemia is associated with lipid disorders in patients with diabetes. Ceramides are metabolites involved in sphingolipid metabolism that accumulate during lipid disorders and exert deleterious effects on glucose and lipid metabolism. However, the effects of ceramide on glucagon-mediated hepatic gluconeogenesis remain largely unknown. This study was designed to investigate the impact of ceramides on gluconeogenesis in the context of the hepatic glucagon response, with the aim of finding new pharmacological interventions for hyperglycemia in diabetes. METHODS Liquid chromatography-mass spectrometry was used to quantify ceramide content in the serum of patients with diabetes. Primary hepatocytes were isolated from male C57BL/6J mice to study the effects of ceramide on hepatic glucose production. Immunofluorescence staining was performed to view cAMP-responsive element-binding protein (CREB)- regulated transcription co-activator 2 (CRTC2) nuclear translocation in hepatocytes. Serine palmitoyl-transferase, long chain base subunit 2 (Sptlc2) knockdown mice were generated using an adeno-associated virus containing shRNA, and hepatic glucose production was assessed glucagon tolerance and pyruvate tolerance tests in mice fed a normal chow diet and high-fat diet. RESULTS Increased ceramide levels were observed in the serum of patients newly diagnosed with type 2 diabetes. De novo ceramide synthesis was activated in mice with metabolic disorders. Ceramide enhanced hepatic glucose production in primary hepatocytes. In contrast, genetic silencing of Sptlc2 prevented this process. Mechanistically, ceramides de-phosphorylate CRTC2 (Ser 171) and facilitate its translocation into the nucleus for CREB activation, thereby augmenting the hepatic glucagon response. Hepatic Sptlc2 silencing blocked ceramide generation in the liver and thus restrained the hepatic glucagon response in mice fed a normal chow diet and high-fat diet. CONCLUSIONS These data indicate that ceramide serves as an intracellular messenger that augments hepatic glucose production by regulating CRTC2/CREB activity in the context of the hepatic glucagon response, suggesting that CRTC2 phosphorylation might be a potential node for pharmacological interventions to restrain the hyperglycemic response during fasting in diabetes.
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Affiliation(s)
- Jizheng Wang
- Department of the Core Facility, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China; Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Dan Wang
- Department of the Core Facility, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China; Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Shan Lu
- Maternity and Child Dept, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Yifang Hu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Yaoqi Ge
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Xiaoxuan Qin
- Department of Neurology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Yanfei Mo
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Jingbao Kan
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Dong Li
- Department of Orthopedics, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210029, China
| | - Rihua Zhang
- Department of the Core Facility, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China.
| | - Yun Liu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China.
| | - Wen-Song Zhang
- Department of the Core Facility, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China.
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23
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Zhao Y, Zhao H, Li L, Yu S, Liu M, Jiang L. Ceramide on the road to insulin resistance and immunometabolic disorders in transition dairy cows: driver or passenger? Front Immunol 2024; 14:1321597. [PMID: 38274826 PMCID: PMC10808295 DOI: 10.3389/fimmu.2023.1321597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 12/26/2023] [Indexed: 01/27/2024] Open
Abstract
Dairy cows must undergo profound metabolic and endocrine adaptations during their transition period to meet the nutrient requirements of the developing fetus, parturition, and the onset of lactation. Insulin resistance in extrahepatic tissues is a critical component of homeorhetic adaptations in periparturient dairy cows. However, due to increased energy demands at calving that are not followed by a concomitant increase in dry matter intake, body stores are mobilized, and the risk of metabolic disorders dramatically increases. Sphingolipid ceramides involved in multiple vital biological processes, such as proliferation, differentiation, apoptosis, and inflammation. Three typical pathways generate ceramide, and many factors contribute to its production as part of the cell's stress response. Based on lipidomic profiling, there has generally been an association between increased ceramide content and various disease outcomes in rodents. Emerging evidence shows that ceramides might play crucial roles in the adaptive metabolic alterations accompanying the initiation of lactation in dairy cows. A series of studies also revealed a negative association between circulating ceramides and systemic insulin sensitivity in dairy cows experiencing severe negative energy balance. Whether ceramide acts as a driver or passenger in the metabolic stress of periparturient dairy cows is an unknown but exciting topic. In the present review, we discuss the potential roles of ceramides in various metabolic dysfunctions and the impacts of their perturbations. We also discuss how this novel class of bioactive sphingolipids has drawn interest in extrahepatic tissue insulin resistance and immunometabolic disorders in transition dairy cows. We also discuss the possible use of ceramide as a new biomarker for predicting metabolic diseases in cows and highlight the remaining problems.
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Affiliation(s)
| | | | | | | | | | - Linshu Jiang
- Beijing Key Laboratory of Dairy Cow Nutrition, College of Animal Science and Technology, Beijing University of Agriculture, Beijing, China
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24
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Jamjoum R, Majumder S, Issleny B, Stiban J. Mysterious sphingolipids: metabolic interrelationships at the center of pathophysiology. Front Physiol 2024; 14:1229108. [PMID: 38235387 PMCID: PMC10791800 DOI: 10.3389/fphys.2023.1229108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 11/27/2023] [Indexed: 01/19/2024] Open
Abstract
Metabolic pathways are complex and intertwined. Deficiencies in one or more enzymes in a given pathway are directly linked with genetic diseases, most of them having devastating manifestations. The metabolic pathways undertaken by sphingolipids are diverse and elaborate with ceramide species serving as the hubs of sphingolipid intermediary metabolism and function. Sphingolipids are bioactive lipids that serve a multitude of cellular functions. Being pleiotropic in function, deficiency or overproduction of certain sphingolipids is associated with many genetic and chronic diseases. In this up-to-date review article, we strive to gather recent scientific evidence about sphingolipid metabolism, its enzymes, and regulation. We shed light on the importance of sphingolipid metabolism in a variety of genetic diseases and in nervous and immune system ailments. This is a comprehensive review of the state of the field of sphingolipid biochemistry.
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Affiliation(s)
- Rama Jamjoum
- Department of Pharmacy, Birzeit University, West Bank, Palestine
| | - Saurav Majumder
- National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health, Rockville, MD, United States
| | - Batoul Issleny
- Department of Pharmacy, Birzeit University, West Bank, Palestine
| | - Johnny Stiban
- Department of Biology and Biochemistry, Birzeit University, West Bank, Palestine
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25
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Brown RDR, Green CD, Weigel C, Ni B, Celi FS, Proia RL, Spiegel S. Overexpression of ORMDL3 confers sexual dimorphism in diet-induced non-alcoholic steatohepatitis. Mol Metab 2024; 79:101851. [PMID: 38081412 PMCID: PMC10772294 DOI: 10.1016/j.molmet.2023.101851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 11/15/2023] [Accepted: 12/05/2023] [Indexed: 12/22/2023] Open
Abstract
OBJECTIVE The bioactive sphingolipid metabolites ceramide and sphingosine-1-phosphate (S1P) accumulate with overnutrition and have been implicated in non-alcoholic steatohepatitis (NASH) development. ORMDL3, a negative regulator of the rate-limiting step in ceramide biosynthesis, has been identified as an obesity-related gene. Therefore, we assessed the role of ORMDL3 in diet-induced obesity and development of NASH. METHODS Globally overexpressing Ormdl3-Flag transgenic mice (ORMDL3TG) were fed a western high-fat, carbohydrate and cholesterol enriched diet, with high fructose-glucose drinking water. Physiological, biochemical and sphingolipidomic analyses were employed to measure the effect of ORMDL3 overexpression on NASH development. RESULTS ORMDL3TG male but not female mice fed a western high-fat diet and sugar water had exacerbated adipocyte hypertrophy together with increased severity of white adipose inflammation and fibrosis. Hepatic steatosis, dyslipidemia, impaired glucose homeostasis, hyperinsulinemia, and insulin resistance were significantly more severe only in obese ORMDL3TG male mice that accompanied dramatic liver fibrosis, inflammation, and formation of hepatic crown-like structures, which are unique features of human and murine NASH. Obesogenic diet induces ORMDL expression in male mice but reduces it in females. Mechanistically, overexpression of Ormdl3 lowered the levels of S1P and ceramides only in obese female mice and antithetically increased them in tissues of obese males. ORMDL3TG male mice exhibited a much greater induction of the UPR, propagating ER stress that contributed to their early development of NASH. CONCLUSIONS This study uncovered a previously unrecognized role for ORMDL3 in sexual dimorphism important for the development and progression of NASH.
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Affiliation(s)
- Ryan D R Brown
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Christopher D Green
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Cynthia Weigel
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Bin Ni
- Department of Internal Medicine, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Francesco S Celi
- Department of Internal Medicine, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Richard L Proia
- Genetics and Biochemistry Branch, National Institute of Diabetes and Digestive and Kidney Diseases, NIH, Bethesda, MD, USA
| | - Sarah Spiegel
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA.
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26
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Liu M, Zhang J, Zhou Y, Xiong S, Zhou M, Wu L, Liu Q, Chen Z, Jiang H, Yang J, Liu Y, Wang Y, Chen C, Huang L. Gut microbiota affects the estrus return of sows by regulating the metabolism of sex steroid hormones. J Anim Sci Biotechnol 2023; 14:155. [PMID: 38115159 PMCID: PMC10731813 DOI: 10.1186/s40104-023-00959-5] [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: 07/10/2023] [Accepted: 11/06/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Sex hormones play important roles in the estrus return of post-weaning sows. Previous studies have demonstrated a complex and bi-directional regulation between sex hormones and gut microbiota. However, the extent to which the gut microbiota affects estrus return of post-weaning sows is largely unknown. RESULTS In this study, we first screened 207 fecal samples from well-phenotyped sows by 16S rRNA gene sequencing and identified significant associations between microbes and estrus return of post-weaning sows. Using metagenomic sequencing data from 85 fecal samples, we identified 37 bacterial species that were significantly associated with estrus return. Normally returning sows were characterized by increased abundances of L. reuteri and P. copri and decreased abundances of B. fragilis, S. suis, and B. pseudolongum. The changes in gut microbial composition significantly altered the functional capacity of steroid hormone biosynthesis in the gut microbiome. The results were confirmed in a validation cohort. Significant changes in sex steroid hormones and related compounds were found between normal and non-return sows via metabolome analysis. An integrated analysis of differential bacterial species, metagenome, and fecal metabolome provided evidence that normal return-associated bacterial species L. reuteri and Prevotella spp. participated in the degradation of pregnenolone, progesterone, and testosterone, thereby promoting estrogen biosynthesis. Furthermore, the microbial metabolites related to sow energy and nutrient supply or metabolic disorders also showed relationships with sow estrus return. CONCLUSIONS An integrated analysis of differentially abundant bacterial species, metagenome, and fecal metabolome revealed the involvement of L. reuteri and Prevotella spp. in sow estrus return. These findings provide deep insight into the role of gut microbiota in the estrus return of post-weaning sows and the complex cross-talk between gut microbiota and sex hormones, suggesting that the manipulation of the gut microbiota could be an effective strategy to improve sow estrus return after weaning.
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Affiliation(s)
- Min Liu
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Jia Zhang
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Yunyan Zhou
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Shuqi Xiong
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Mengqing Zhou
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Lin Wu
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Qin Liu
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Zhe Chen
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Hui Jiang
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Jiawen Yang
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Yuxin Liu
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Yaxiang Wang
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Congying Chen
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China.
| | - Lusheng Huang
- National Key Laboratory of Swine Genetic Improvement and Germplasm Innovation, Jiangxi Agricultural University, Nanchang, 330045, China.
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27
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Hülsmeier AJ, Toelle SP, Bellstedt P, Wentzel C, Bahr A, Kolokotronis K, Hornemann T. The atypical sphingolipid SPB 18:1(14Z);O2 is a biomarker for DEGS1 related hypomyelinating leukodystrophy. J Lipid Res 2023; 64:100464. [PMID: 37890668 PMCID: PMC10696257 DOI: 10.1016/j.jlr.2023.100464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 10/20/2023] [Accepted: 10/21/2023] [Indexed: 10/29/2023] Open
Abstract
Sphingolipids (SL) represent a structurally diverse class of lipids that are central to cellular physiology and neuronal development and function. Defects in the sphingolipid metabolism are typically associated with nervous system disorders. The C4-dihydroceramide desaturase (DEGS1) catalyzes the conversion of dihydroceramide to ceramide, the final step in the SL de-novo synthesis. Loss of function mutations in DEGS1 cause a hypomyelinating leukodystrophy, which is associated with increased plasma dihydrosphingolipids (dhSL) and with the formation of an atypical SPB 18:1(14Z);O2 metabolite. Here, we characterize two novel DEGS1 variants of unknown significance (VUS), provide a structural model with a predicted substrate binding site, and propose a regulatory link between DEGS1 and fatty acid desaturase 3 (FADS3). Both VUS involve single amino acid substitutions near the C-terminus within conserved regions of the enzyme. Patient 1 (p.R311K variant) shows severe progressive tetraspasticity, intellectual disability, and epilepsy in combination with brain magnetic resonance imaging (MRI) findings, typical for DEGS1-related leukodystrophy. Patient 2 (p.G270E variant) presents with delayed psychomotor development, oculomotor apraxia, and a normal brain MRI. Plasma from the p.R311K carrier showed a significantly elevated dhSL species and the presence of SPB 18:1(14Z);O2, while the plasma SL profile for the p.G270E variant was not altered. This suggests the p.R331K variant is pathogenic, while the p.G270E appears benign. As an increase in dihydroSL species is also seen in other pathological disorders of the SL metabolism, the SPB 18:1(14Z);O2 seems to be a more specific biomarker to discriminate between pathogenic and benign DEGS1 variants.
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Affiliation(s)
- Andreas J Hülsmeier
- Institute of Clinical Chemistry, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
| | - Sandra P Toelle
- Department of Pediatric Neurology, University Children's Hospital, Zurich, University of Zurich, Zurich, Switzerland
| | - Peter Bellstedt
- Institute of Clinical Chemistry, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Christian Wentzel
- Department of Women's and Children's Health, Pediatric Oncological and Neurological Research, Uppsala University, Uppsala, Sweden
| | - Angela Bahr
- Institute of Medical Genetics, University of Zurich, Schlieren, Zurich, Switzerland
| | | | - Thorsten Hornemann
- Institute of Clinical Chemistry, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
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28
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Lin K, Dong C, Zhao B, Zhou B, Yang L. Glucagon-like peptide-1 receptor agonist regulates fat browning by altering the gut microbiota and ceramide metabolism. MedComm (Beijing) 2023; 4:e416. [PMID: 38020719 PMCID: PMC10661313 DOI: 10.1002/mco2.416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 09/22/2023] [Accepted: 10/10/2023] [Indexed: 12/01/2023] Open
Abstract
Studies have shown that antidiabetic drugs can alter the gut microbiota. The hypoglycemic effects of the drugs can be attributed in part to certain species in the gut microbiome that help the drugs work more effectively. In addition, increasing energy expenditure via the induction of adipose tissue browning has become an appealing strategy to treat obesity and associated metabolic complications. Currently, glucagon-like peptide-1 receptor agonist (GLP-1 RA) treatment for metabolic disorders such as obesity and type 2 diabetes has been widely studied. To determine the mechanism of a long-acting GLP-1 RA affects adipose tissue browning and the gut microbiome, we treated high-fat diet mice with GLP-1 RA and demonstrated that the drug can regulate adipose tissue browning. 16S rRNA and untargeted metabolomics assays suggested that it increased the abundance of bacterium Lactobacillus reuteri and decreased serum ceramide levels in mice. L. reuteri was negatively correlated with ceramide. We found that the mechanism of ceramide decline was alkaline ceramidase 2 (Acer2) overexpression. Moreover, L. reuteri can play a therapeutic synergistic role with GLP-1 RA, suggesting that gut microbiota can be used as a part of the treatment of diabetes.
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Affiliation(s)
- Ke Lin
- Department of Biotherapy, Cancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduChina
| | - Chunyan Dong
- Department of Biotherapy, Cancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduChina
| | - Binyan Zhao
- Department of Biotherapy, Cancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduChina
| | - Bailing Zhou
- Department of Biotherapy, Cancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduChina
| | - Li Yang
- Department of Biotherapy, Cancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduChina
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29
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Hammerschmidt P, Steculorum SM, Bandet CL, Del Río-Martín A, Steuernagel L, Kohlhaas V, Feldmann M, Varela L, Majcher A, Quatorze Correia M, Klar RFU, Bauder CA, Kaya E, Porniece M, Biglari N, Sieben A, Horvath TL, Hornemann T, Brodesser S, Brüning JC. CerS6-dependent ceramide synthesis in hypothalamic neurons promotes ER/mitochondrial stress and impairs glucose homeostasis in obese mice. Nat Commun 2023; 14:7824. [PMID: 38016943 PMCID: PMC10684560 DOI: 10.1038/s41467-023-42595-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 10/17/2023] [Indexed: 11/30/2023] Open
Abstract
Dysregulation of hypothalamic ceramides has been associated with disrupted neuronal pathways in control of energy and glucose homeostasis. However, the specific ceramide species promoting neuronal lipotoxicity in obesity have remained obscure. Here, we find increased expression of the C16:0 ceramide-producing ceramide synthase (CerS)6 in cultured hypothalamic neurons exposed to palmitate in vitro and in the hypothalamus of obese mice. Conditional deletion of CerS6 in hypothalamic neurons attenuates high-fat diet (HFD)-dependent weight gain and improves glucose metabolism. Specifically, CerS6 deficiency in neurons expressing pro-opiomelanocortin (POMC) or steroidogenic factor 1 (SF-1) alters feeding behavior and alleviates the adverse metabolic effects of HFD feeding on insulin sensitivity and glucose tolerance. POMC-expressing cell-selective deletion of CerS6 prevents the diet-induced alterations of mitochondrial morphology and improves cellular leptin sensitivity. Our experiments reveal functions of CerS6-derived ceramides in hypothalamic lipotoxicity, altered mitochondrial dynamics, and ER/mitochondrial stress in the deregulation of food intake and glucose metabolism in obesity.
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Affiliation(s)
- Philipp Hammerschmidt
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
- Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEDP), University Hospital Cologne, Kerpener Strasse 26, 50924, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Sophie M Steculorum
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
- Max Planck Institute for Metabolism Research, Research Group Neurocircuit Wiring and Function, Cologne, Germany
- National Center for Diabetes Research (DZD), Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany
| | - Cécile L Bandet
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
- Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEDP), University Hospital Cologne, Kerpener Strasse 26, 50924, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Almudena Del Río-Martín
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
- Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEDP), University Hospital Cologne, Kerpener Strasse 26, 50924, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Lukas Steuernagel
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
- Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEDP), University Hospital Cologne, Kerpener Strasse 26, 50924, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Vivien Kohlhaas
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
- Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEDP), University Hospital Cologne, Kerpener Strasse 26, 50924, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Marvin Feldmann
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
- Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEDP), University Hospital Cologne, Kerpener Strasse 26, 50924, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
- Faculty of Mathematics and Natural Sciences, University of Cologne, Cologne, Germany
| | - Luis Varela
- Yale Center for Molecular and Systems Metabolism, Department of Comparative Medicine, Yale University School of Medicine, 310 Cedar St., BML 330, New Haven, CT, 06520, USA
- Laboratory of Glia-Neuron Interactions in the Control of Hunger. Achucarro Basque Center for Neuroscience, Leioa, 48940, Spain
- Ikerbasque-Basque Foundation for Science, Bilbao, 48013, Spain
| | - Adam Majcher
- Center for Integrative Human Physiology, University of Zürich, Zürich, Switzerland
- Institute of Clinical Chemistry, University Hospital, Zürich, Switzerland
| | - Marta Quatorze Correia
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
| | - Rhena F U Klar
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
| | - Corinna A Bauder
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
- Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEDP), University Hospital Cologne, Kerpener Strasse 26, 50924, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Ecem Kaya
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
- Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEDP), University Hospital Cologne, Kerpener Strasse 26, 50924, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Marta Porniece
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
- Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEDP), University Hospital Cologne, Kerpener Strasse 26, 50924, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Nasim Biglari
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
- Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEDP), University Hospital Cologne, Kerpener Strasse 26, 50924, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Anna Sieben
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany
- Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEDP), University Hospital Cologne, Kerpener Strasse 26, 50924, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Tamas L Horvath
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
- Yale Center for Molecular and Systems Metabolism, Department of Comparative Medicine, Yale University School of Medicine, 310 Cedar St., BML 330, New Haven, CT, 06520, USA
- Laboratory of Glia-Neuron Interactions in the Control of Hunger. Achucarro Basque Center for Neuroscience, Leioa, 48940, Spain
- Ikerbasque-Basque Foundation for Science, Bilbao, 48013, Spain
| | - Thorsten Hornemann
- Center for Integrative Human Physiology, University of Zürich, Zürich, Switzerland
- Institute of Clinical Chemistry, University Hospital, Zürich, Switzerland
| | - Susanne Brodesser
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Jens C Brüning
- Department of Neuronal Control of Metabolism, Max Planck Institute for Metabolism Research, Gleueler Strasse 50, 50931, Cologne, Germany.
- Policlinic for Endocrinology, Diabetes and Preventive Medicine (PEDP), University Hospital Cologne, Kerpener Strasse 26, 50924, Cologne, Germany.
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD) and Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany.
- National Center for Diabetes Research (DZD), Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany.
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30
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Meade R, Chao Y, Harroun N, Li C, Hafezi S, Hsu FF, Semenkovich CF, Zayed MA. Ceramides in peripheral arterial plaque lead to endothelial cell dysfunction. JVS Vasc Sci 2023; 4:100181. [PMID: 38077163 PMCID: PMC10704331 DOI: 10.1016/j.jvssci.2023.100181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/22/2023] [Indexed: 02/12/2024] Open
Abstract
Background Peripheral arterial atheroprogression is increasingly prevalent, and is a risk factor for major limb amputations in individuals with risk factors such as diabetes. We previously demonstrated that bioactive lipids are significantly altered in arterial tissue of individuals with diabetes and advanced peripheral arterial disease. Methods Here we evaluated whether sphingolipid ceramide 18:1/16:0 (C16) is a cellular regulator in endothelial cells and peripheral tibial arterial tissue in individuals with diabetes. Results We observed that C16 is the single most elevated ceramide in peripheral arterial tissue from below the knee in individuals with diabetes (11% increase, P < .05). C16 content in tibial arterial tissue positively correlates with sphingomyelin (SPM) content in patients with and without diabetes (r2 = 0.5, P < .005; r2 = 0.17, P < .05; respectively). Tibial arteries of individuals with diabetes demonstrated no difference in CERS6 expression (encoding ceramide synthase 6; the predominate ceramide synthesis enzyme), but higher SMPD expression (encoding sphingomyelin phosphodiesterase that catalyzes ceramide synthesis from sphingomyelins; P < .05). SMPD4, but not SMPD2, was particularly elevated in maximally diseased (Max) tibial arterial segments (P < .05). In vitro, exogenous C16 caused endothelial cells (HUVECs) to have decreased proliferation (P < .03), increased apoptosis (P < .003), and decreased autophagy (P < .008). Selective knockdown of SMPD2 and SMPD4 decreased native production of C16 (P < .01 and P < .001, respectively), but only knockdown of SMPD4 rescued cellular proliferation (P < .005) following exogenous supplementation with C16. Conclusions Our findings suggest that C16 is a tissue biomarker for peripheral arterial disease severity in the setting of diabetes, and can impact endothelial cell viability and function. Clinical relevance Peripheral arterial disease and its end-stage manifestation known as chronic limb-threatening ischemia (CLTI) represent ongoing prevalent and intricate medical challenges. Individuals with diabetes have a heightened risk of developing CLTI and experiencing its complications, including wounds, ulcers, and major amputations. In the present study, we conducted a comprehensive examination of the molecular lipid composition within arterial segments from individuals with CLTI, and with and without diabetes. Our investigations unveiled a striking revelation: the sphingolipid ceramide 18:1/16:0 emerged as the predominant ceramide species that was significantly elevated in the peripheral arterial intima below the knee in patients with diabetes. Moreover, this heightened ceramide presence is associated with a marked impairment of endothelial cell function and viability. Additionally, our study revealed a concurrent elevation in the expression of sphingomyelin phosphodiesterases, enzymes responsible for catalyzing ceramide synthesis from sphingomyelins, within maximally diseased arterial segments. These findings underscore the pivotal role of ceramides and their biosynthesis enzymes in the context of CLTI, offering new insights into potential therapeutic avenues for managing this challenging disease process.
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Affiliation(s)
- Rodrigo Meade
- Section of Vascular Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO
| | - Yang Chao
- Section of Vascular Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO
| | - Nikolai Harroun
- Section of Vascular Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO
| | - Chenglong Li
- Section of Vascular Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO
| | - Shahab Hafezi
- Section of Vascular Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO
| | - Fong-Fu Hsu
- Division of Endocrinology, Lipid, and Metabolism, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO
| | - Clay F. Semenkovich
- Division of Endocrinology, Lipid, and Metabolism, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO
| | - Mohamed A. Zayed
- Section of Vascular Surgery, Department of Surgery, Washington University School of Medicine, St. Louis, MO
- Department of Surgery, Veterans Affairs St. Louis Health Care System, St. Louis, MO
- Department of Radiology, Washington University School of Medicine, St. Louis, MO
- Division of Molecular Cell Biology, Washington University School of Medicine, St. Louis, MO
- Department of Biomedical Engineering, Washington University, McKelvey School of Engineering, St. Louis, MO
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31
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Liu Y, Wang D, Liu YP. Metabolite profiles of diabetes mellitus and response to intervention in anti-hyperglycemic drugs. Front Endocrinol (Lausanne) 2023; 14:1237934. [PMID: 38027178 PMCID: PMC10644798 DOI: 10.3389/fendo.2023.1237934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) has become a major health problem, threatening the quality of life of nearly 500 million patients worldwide. As a typical multifactorial metabolic disease, T2DM involves the changes and interactions of various metabolic pathways such as carbohydrates, amino acid, and lipids. It has been suggested that metabolites are not only the endpoints of upstream biochemical processes, but also play a critical role as regulators of disease progression. For example, excess free fatty acids can lead to reduced glucose utilization in skeletal muscle and induce insulin resistance; metabolism disorder of branched-chain amino acids contributes to the accumulation of toxic metabolic intermediates, and promotes the dysfunction of β-cell mitochondria, stress signal transduction, and apoptosis. In this paper, we discuss the role of metabolites in the pathogenesis of T2DM and their potential as biomarkers. Finally, we list the effects of anti-hyperglycemic drugs on serum/plasma metabolic profiles.
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Affiliation(s)
| | | | - Yi-Ping Liu
- Provincial University Key Laboratory of Sport and Health Science, School of Physical Education and Sport Sciences, Fujian Normal University, Fuzhou, China
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32
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VanSant-Webb C, Low HK, Kuramoto J, Stanley CE, Qiang H, Su A, Ross AN, Cooper CG, Cox JE, Summers SA, Evason KJ, Ducker GS. Phospholipid isotope tracing reveals β-catenin-driven suppression of phosphatidylcholine metabolism in hepatocellular carcinoma. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.12.562134. [PMID: 37904922 PMCID: PMC10614757 DOI: 10.1101/2023.10.12.562134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
Background and Aims Activating mutations in the CTNNB1 gene encoding β-catenin are among the most frequently observed oncogenic alterations in hepatocellular carcinoma (HCC). HCC with CTNNB1 mutations show profound alterations in lipid metabolism including increases in fatty acid oxidation and transformation of the phospholipidome, but it is unclear how these changes arise and whether they contribute to the oncogenic program in HCC. Methods We employed untargeted lipidomics and targeted isotope tracing to quantify phospholipid production fluxes in an inducible human liver cell line expressing mutant β-catenin, as well as in transgenic zebrafish with activated β-catenin-driven HCC. Results In both models, activated β-catenin expression was associated with large changes in the lipidome including conserved increases in acylcarnitines and ceramides and decreases in triglycerides. Lipid flux analysis in human cells revealed a large reduction in phosphatidylcholine (PC) production rates as assayed by choline tracer incorporation. We developed isotope tracing lipid flux analysis for zebrafish and observed similar reductions in phosphatidylcholine synthesis flux accomplished by sex-specific mechanisms. Conclusions The integration of isotope tracing with lipid abundances highlights specific lipid class transformations downstream of β-catenin signaling in HCC and suggests future HCC-specific lipid metabolic targets.
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Affiliation(s)
- Chad VanSant-Webb
- Department of Pathology, University of Utah School of Medicine. Salt Lake City UT, 84112, USA
| | - Hayden K Low
- Department of Biochemistry, University of Utah School of Medicine. Salt Lake City UT, 84112, USA
| | - Junko Kuramoto
- Department of Pathology, University of Utah School of Medicine. Salt Lake City UT, 84112, USA
- Department of Pathology, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Claire E Stanley
- Department of Biochemistry, University of Utah School of Medicine. Salt Lake City UT, 84112, USA
| | - Hantao Qiang
- Department of Biochemistry, University of Utah School of Medicine. Salt Lake City UT, 84112, USA
| | - Audrey Su
- Department of Pathology, University of Utah School of Medicine. Salt Lake City UT, 84112, USA
| | - Alexis N Ross
- Department of Pathology, University of Utah School of Medicine. Salt Lake City UT, 84112, USA
| | - Chad G Cooper
- Department of Biochemistry, University of Utah School of Medicine. Salt Lake City UT, 84112, USA
| | - James E Cox
- Department of Biochemistry, University of Utah School of Medicine. Salt Lake City UT, 84112, USA
| | - Scott A Summers
- Department of Nutrition and Integrative Physiology, University of Utah College of Health. Salt Lake City, UT 84112 USA
| | - Kimberley J Evason
- Department of Pathology, University of Utah School of Medicine. Salt Lake City UT, 84112, USA
- Huntsman Cancer Institute, University of Utah. Salt Lake City UT, 84112 USA
| | - Gregory S Ducker
- Department of Biochemistry, University of Utah School of Medicine. Salt Lake City UT, 84112, USA
- Huntsman Cancer Institute, University of Utah. Salt Lake City UT, 84112 USA
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Makki BE, Rahman S. Alzheimer's Disease in Diabetic Patients: A Lipidomic Prospect. Neuroscience 2023; 530:79-94. [PMID: 37652288 DOI: 10.1016/j.neuroscience.2023.08.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 08/04/2023] [Accepted: 08/27/2023] [Indexed: 09/02/2023]
Abstract
Diabetes Mellitus (DM) and Alzheimer's disease (AD) have been two of the most common chronic diseases affecting people worldwide. Type 2 DM (T2DM) is a metabolic disease depicted by insulin resistance, dyslipidemia, and chronic hyperglycemia while AD is a neurodegenerative disease marked by Amyloid β (Aβ) accumulation, neurofibrillary tangles aggregation, and tau phosphorylation. Various clinical, epidemiological, and lipidomics studies have linked those diseases claiming shared pathological pathways raising the assumption that diabetic patients are at an increased risk of developing AD later in their lives. Insulin resistance is the tipping point beyond where advanced glycation end (AGE) products and free radicals are produced leading to oxidative stress and lipid peroxidation. Additionally, different types of lipids are playing a crucial role in the development and the relationship between those diseases. Lipidomics, an analysis of lipid structure, formation, and interactions, evidently exhibits these lipid changes and their direct and indirect effect on Aβ synthesis, insulin resistance, oxidative stress, and neuroinflammation. In this review, we have discussed the pathophysiology of T2DM and AD, the interconnecting pathological pathways they share, and the lipidomics where different lipids such as cholesterol, phospholipids, sphingolipids, and sulfolipids contribute to the underlying features of both diseases. Understanding their role can be beneficial for diagnostic purposes or introducing new drugs to counter AD.
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Affiliation(s)
| | - Sarah Rahman
- School of Medicine, Tehran University of Medical Sciences, Iran
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Mei M, Liu M, Mei Y, Zhao J, Li Y. Sphingolipid metabolism in brain insulin resistance and neurological diseases. Front Endocrinol (Lausanne) 2023; 14:1243132. [PMID: 37867511 PMCID: PMC10587683 DOI: 10.3389/fendo.2023.1243132] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 09/22/2023] [Indexed: 10/24/2023] Open
Abstract
Sphingolipids, as members of the large lipid family, are important components of plasma membrane. Sphingolipids participate in biological signal transduction to regulate various important physiological processes such as cell growth, apoptosis, senescence, and differentiation. Numerous studies have demonstrated that sphingolipids are strongly associated with glucose metabolism and insulin resistance. Insulin resistance, including peripheral insulin resistance and brain insulin resistance, is closely related to the occurrence and development of many metabolic diseases. In addition to metabolic diseases, like type 2 diabetes, brain insulin resistance is also involved in the progression of neurodegenerative diseases including Alzheimer's disease and Parkinson's disease. However, the specific mechanism of sphingolipids in brain insulin resistance has not been systematically summarized. This article reviews the involvement of sphingolipids in brain insulin resistance, highlighting the role and molecular biological mechanism of sphingolipid metabolism in cognitive dysfunctions and neuropathological abnormalities of the brain.
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Affiliation(s)
- Meng Mei
- Department of Pharmacy, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Maochang Liu
- Department of Pharmacy, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Mei
- Department of Pharmacy, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Zhao
- Administrative Office, Beijing University of Chinese Medicine, Beijing, China
| | - Yang Li
- Department of Pharmacy, Wuhan Children’s Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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35
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Huang L, Xing Y, Ning X, Yu Z, Bai X, Liu L, Sun S. Roles of Twist1 in lipid and glucose metabolism. Cell Commun Signal 2023; 21:270. [PMID: 37784111 PMCID: PMC10544448 DOI: 10.1186/s12964-023-01262-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 08/09/2023] [Indexed: 10/04/2023] Open
Abstract
The abnormal lipid and glucose metabolisms are linked to the metabolic disorders, tumorigenesis, and fibrotic diseases, which attracts the increasing attention to find out the key molecules involved in the lipid and glucose metabolism as the possible therapeutic targets on these diseases. A transcriptional factor Twist1 has been associated with not only the embryonic development, cancer, and fibrotic diseases, but also the regulation of lipid and glucose metabolism. In this review, we will discuss the roles and mechanisms of Twist1 in the obesity-associated white adipose tissue inflammation and insulin resistance, brown adipose tissue metabolism, fatty acid oxidation, and glucose metabolism in skeletal muscle to provide a rational perspective to consider Twist1 as a potential treatment target in clinic. Video Abstract.
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Affiliation(s)
- Liuyifei Huang
- Department of Nephrology, Xijing Hospital, The Fourth Military Medical University, Changle Road, No. 127 Changle West Road, Xi'an, Shaanxi, China
| | - Yan Xing
- Department of Nephrology, Xijing Hospital, The Fourth Military Medical University, Changle Road, No. 127 Changle West Road, Xi'an, Shaanxi, China
| | - Xiaoxuan Ning
- Department of Geriatrics, Xijing Hospital, The Fourth Military Medical University, Changle Road, No. 127 Changle West Road, Xi'an, Shaanxi, China
| | - Zhixiang Yu
- Department of Nephrology, Xijing Hospital, The Fourth Military Medical University, Changle Road, No. 127 Changle West Road, Xi'an, Shaanxi, China
| | - Xiao Bai
- Department of Nephrology, Xijing Hospital, The Fourth Military Medical University, Changle Road, No. 127 Changle West Road, Xi'an, Shaanxi, China
| | - Limin Liu
- School of Medicine, Northwest University, 229 Taibai North Road, Xi'an, 710032, Shaanxi, China.
| | - Shiren Sun
- Department of Nephrology, Xijing Hospital, The Fourth Military Medical University, Changle Road, No. 127 Changle West Road, Xi'an, Shaanxi, China.
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36
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El-Amouri S, Karakashian A, Bieberich E, Nikolova-Karakashian M. Regulated translocation of neutral sphingomyelinase-2 to the plasma membrane drives insulin resistance in steatotic hepatocytes. J Lipid Res 2023; 64:100435. [PMID: 37640282 PMCID: PMC10550728 DOI: 10.1016/j.jlr.2023.100435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/11/2023] [Accepted: 08/14/2023] [Indexed: 08/31/2023] Open
Abstract
Obesity-associated diabetes is linked to the accumulation of ceramide in various organs, including the liver. The exact mechanisms by which ceramide contributes to diabetic pathology are unclear, but one proposed scenario is that ceramide accumulation may inhibit insulin signaling pathways. It is unknown however whether the excess ceramide is generated proximal to the insulin receptor, that is, at the plasma membrane (PM), where it could affect the insulin signaling pathway directly, or the onset of insulin resistance is due to ceramide-induced mitochondrial dysfunction and/or lipotoxicity. Using hepatic cell lines and primary cultures, gain- and loss- of function approach, and state-of-the art lipid imaging, this study shows that PM-associated neutral sphingomyelinase 2 (nSMase2) regulates ceramide homeostasis in fat-loaded hepatocytes and drives the onset of insulin resistance. Our results provide evidence of a regulated translocation of nSMase2 to the PM which leads to local generation of ceramide and insulin resistance in cells treated with palmitic acid (PAL), a type of fat commonly found in diabetogenic diets. Oleic acid, which also causes accumulation of lipid droplets, does not induce nSMase2 translocation and insulin resistance. Experiments using the acyl-biotin exchange method to quantify protein palmitoylation show that cellular PAL abundance regulates the rate of nSMase2 palmitoylation. Furthermore, while inhibition of nSMase2 with GW4869 prevents PAL-induced insulin resistance, the overexpression of wild type nSMase2 but not palmitoylation-defective mutant protein potentiates the suppressive effect of PAL on insulin signaling. Overall, this study identifies nSMase2 as a novel component of the mechanism of insulin resistance onset in fat-loaded hepatocytes, that is, cell-autonomous and driven by PAL.
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Affiliation(s)
- S El-Amouri
- Department of Physiology, University of Kentucky College of Medicine, Lexington, KY, USA
| | - A Karakashian
- Department of Physiology, University of Kentucky College of Medicine, Lexington, KY, USA
| | - E Bieberich
- Department of Physiology, University of Kentucky College of Medicine, Lexington, KY, USA
| | - M Nikolova-Karakashian
- Department of Physiology, University of Kentucky College of Medicine, Lexington, KY, USA.
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Liu L, Wang T, Xu H, Zhu Y, Guan X, He X, Fang J, Xie Y, Zhang Q, Song X, Zhao Q, Huang W. Exposure to ambient oxidant pollution associated with ceramide changes and cardiometabolic responses. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 103:104276. [PMID: 37717721 DOI: 10.1016/j.etap.2023.104276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/23/2023] [Accepted: 09/14/2023] [Indexed: 09/19/2023]
Abstract
Evidence of impact of ambient oxidant pollution on cardiometabolic responses remains limited. We aimed to examine associations of oxidant pollutants with cardiometabolic responses, and effect modification by ceramides. During 2019-2020, 152 healthy adults were visited 4 times in Beijing, China, and indicators of ceramides, glucose homeostasis, and vascular function were measured. We found significant increases in ceramides of 13.9% (p = 0.020) to 110.1% (p = 0.005) associated with an interquartile increase in oxidant pollutants at prior 1-7 days. Exposure to oxidant pollutants was also related to elevations in insulin and reductions in adiponectin, and elevations in systolic and diastolic blood pressure. Further, stratified analyses revealed larger changes in oxidant pollutant related cardiometabolic responses among participants with higher ceramide levels compared to those with lower levels. Our findings suggested cardiometabolic effects associated with exposure to oxidant pollutants, which may be modified by ceramide levels.
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Affiliation(s)
- Lingyan Liu
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; Department of Geriatrics, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing, China; State Key Laboratory of Vascular Homeostasis and Remodeling,Peking University, Beijing, China
| | - Tong Wang
- Key Lab of Medical Protection for Electromagnetic Radiation, Ministry of Education of China, Institute of Toxicology, College of Preventive Medicine, Army Medical University (Third Military Medical University), Chongqing, China; State Key Laboratory of Vascular Homeostasis and Remodeling,Peking University, Beijing, China
| | - Hongbing Xu
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling,Peking University, Beijing, China.
| | - Yutong Zhu
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling,Peking University, Beijing, China
| | - Xinpeng Guan
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling,Peking University, Beijing, China
| | - Xinghou He
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling,Peking University, Beijing, China
| | - Jiakun Fang
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling,Peking University, Beijing, China
| | - Yunfei Xie
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling,Peking University, Beijing, China
| | - Qiaochi Zhang
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling,Peking University, Beijing, China
| | - Xiaoming Song
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling,Peking University, Beijing, China
| | - Qian Zhao
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling,Peking University, Beijing, China
| | - Wei Huang
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, and Peking University Institute of Environmental Medicine, Beijing, China; State Key Laboratory of Vascular Homeostasis and Remodeling,Peking University, Beijing, China.
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Wretlind A, Curovic VR, de Zawadzki A, Suvitaival T, Xu J, Zobel EH, von Scholten BJ, Ripa RS, Kjaer A, Hansen TW, Vilsbøll T, Vestergaard H, Rossing P, Legido-Quigley C. Ceramides are decreased after liraglutide treatment in people with type 2 diabetes: a post hoc analysis of two randomized clinical trials. Lipids Health Dis 2023; 22:160. [PMID: 37752566 PMCID: PMC10521385 DOI: 10.1186/s12944-023-01922-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 09/11/2023] [Indexed: 09/28/2023] Open
Abstract
BACKGROUND Specific ceramides have been identified as risk markers for cardiovascular disease (CVD) years before onset of disease. Treatment with the glucagon-like peptide-1 receptor agonist (GLP-1RA) liraglutide has been shown to induce beneficial changes in the lipid profile and reduce the risk of CVD. Reducing lipotoxic lipids with an antidiabetic drug therapy could be a path towards precision medicine approaches for the treatment of complications to diabetes. In this post-hoc study, an investigation was carried out on the effect of liraglutide on CVD-risk associated ceramides in two randomized clinical trials including participants with type 2 diabetes (T2D). METHODS This study analyzed plasma samples from two independent randomized placebo-controlled clinical trials. The first trial, Antiproteinuric Effects of Liraglutide Treatment (LirAlbu12) followed a crossover design where 27 participants were treated for 12 weeks with either liraglutide (1.8 mg/d) or placebo, followed by a four-week washout period, and then another 12 weeks of the other treatment. The second clinical trial, Effect of Liraglutide on Vascular Inflammation in Type-2 Diabetes (LiraFlame26), lasted for 26 weeks and followed a parallel design, where 102 participants were randomized 1:1 to either liraglutide or placebo. Heresix prespecified plasma ceramides were measured using liquid chromatography mass spectrometry and assessed their changes using linear mixed models. Possible confounders were assessed with mediation analyses. RESULTS In the LiraFlame26 trial, 26-week treatment with liraglutide resulted in a significant reduction of two ceramides associated with CVD risk, C16 Cer and C24:1 Cer (p < 0.05) compared to placebo. None of the remaining ceramides showed statistically significant changes in response to liraglutide treatment compared to placebo. Significant changes in ceramides were not found after 12-weeks of liraglutide treatment in the LirAlbu12 trial. Mediation analyses showed that weight loss did not affect ceramide reduction. CONCLUSIONS It was demonstrated that treatment with liraglutide resulted in a reduction in C16 Cer and C24:1 Cer after 26 weeks of treatment. These findings suggest the GLP-1RA can be used to modulate ceramides in addition to its other properties. TRIAL REGISTRATION Clinicaltrial.gov identifier: NCT02545738 and NCT03449654.
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Affiliation(s)
- Asger Wretlind
- Steno Diabetes Center Copenhagen, Herlev, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | | | | | - Jin Xu
- King's College London, London, UK
| | - Emilie Hein Zobel
- Steno Diabetes Center Copenhagen, Herlev, Denmark
- Novo Nordisk A/S, Måløv, Denmark
| | | | - Rasmus Sejersten Ripa
- Department of Clinical Physiology and Nuclear Medicine & Cluster for Molecular Imaging, Copenhagen University Hospital - Rigshospitalet & Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Andreas Kjaer
- Department of Clinical Physiology and Nuclear Medicine & Cluster for Molecular Imaging, Copenhagen University Hospital - Rigshospitalet & Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Tina Vilsbøll
- Steno Diabetes Center Copenhagen, Herlev, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Henrik Vestergaard
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Department of Medicine, Bornholms Hospital, Rønne, Denmark
| | - Peter Rossing
- Steno Diabetes Center Copenhagen, Herlev, Denmark.
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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Afrin F, Mateen S, Oman J, Lai JCK, Barrott JJ, Pashikanti S. Natural Products and Small Molecules Targeting Cellular Ceramide Metabolism to Enhance Apoptosis in Cancer Cells. Cancers (Basel) 2023; 15:4645. [PMID: 37760612 PMCID: PMC10527029 DOI: 10.3390/cancers15184645] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Molecular targeting strategies have been used for years in order to control cancer progression and are often based on targeting various enzymes involved in metabolic pathways. Keeping this in mind, it is essential to determine the role of each enzyme in a particular metabolic pathway. In this review, we provide in-depth information on various enzymes such as ceramidase, sphingosine kinase, sphingomyelin synthase, dihydroceramide desaturase, and ceramide synthase which are associated with various types of cancers. We also discuss the physicochemical properties of well-studied inhibitors with natural product origins and their related structures in terms of these enzymes. Targeting ceramide metabolism exhibited promising mono- and combination therapies at preclinical stages in preventing cancer progression and cemented the significance of sphingolipid metabolism in cancer treatments. Targeting ceramide-metabolizing enzymes will help medicinal chemists design potent and selective small molecules for treating cancer progression at various levels.
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Affiliation(s)
- Farjana Afrin
- Biomedical and Pharmaceutical Sciences, Kasiska Division of Health Sciences, College of Pharmacy, Idaho State University, Pocatello, ID 83209, USA; (F.A.); (S.M.); (J.O.); (J.C.K.L.)
| | - Sameena Mateen
- Biomedical and Pharmaceutical Sciences, Kasiska Division of Health Sciences, College of Pharmacy, Idaho State University, Pocatello, ID 83209, USA; (F.A.); (S.M.); (J.O.); (J.C.K.L.)
| | - Jordan Oman
- Biomedical and Pharmaceutical Sciences, Kasiska Division of Health Sciences, College of Pharmacy, Idaho State University, Pocatello, ID 83209, USA; (F.A.); (S.M.); (J.O.); (J.C.K.L.)
| | - James C. K. Lai
- Biomedical and Pharmaceutical Sciences, Kasiska Division of Health Sciences, College of Pharmacy, Idaho State University, Pocatello, ID 83209, USA; (F.A.); (S.M.); (J.O.); (J.C.K.L.)
| | - Jared J. Barrott
- Cell Biology and Physiology, College of Life Sciences, Brigham Young University, Provo, UT 84602, USA;
| | - Srinath Pashikanti
- Biomedical and Pharmaceutical Sciences, Kasiska Division of Health Sciences, College of Pharmacy, Idaho State University, Pocatello, ID 83209, USA; (F.A.); (S.M.); (J.O.); (J.C.K.L.)
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40
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Düsing P, Heinrich NN, Al-Kassou B, Gutbrod K, Dörmann P, Nickenig G, Jansen F, Zietzer A. Analysis of circulating ceramides and hexosylceramides in patients with coronary artery disease and type II diabetes mellitus. BMC Cardiovasc Disord 2023; 23:454. [PMID: 37700226 PMCID: PMC10498560 DOI: 10.1186/s12872-023-03454-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 08/16/2023] [Indexed: 09/14/2023] Open
Abstract
BACKGROUND Cardiovascular disease (CVD) remains the leading cause of death worldwide. The main driving force behind this association is coronary artery disease (CAD), the manifestation of atherosclerosis in the coronary circulation. Cornerstones in the development of CAD are pathologies in lipid metabolism. In recent years, ongoing research has identified ceramides, a subclass of sphingolipids to be mediators of CVD. The aim of this study is to investigate the influence of type II diabetes mellitus (DM) on circulating ceramides and hexosylceramides (HexCers) in CAD patients. METHODS 24 patients aged 40-90 years with CAD confirmed by angiography were included into a pilot study. Patients with DM were identified by analysis of discharge letters or other medical documents available at the study center. During coronary angiography, arterial blood samples were collected and quantification of sphingolipids in patient serum was performed by mass spectrometry. RESULTS Statistical analysis showed nine significantly different HexCers in CAD patients with DM compared to patients without DM. Among the nine significantly regulated HexCers, we identified seven d18:1 HexCers. This group contributes to the fourth most abundant subgroup of total ceramides and HexCers in this dataset. HexCer-d18:1-23:1(2-OH) showed the strongest downregulation in the patient group with DM. CONCLUSION This study suggests that levels of circulating HexCers are downregulated in patients with CAD and concomitant DM compared to patients without DM. Further research is needed to investigate the underlying mechanisms and the suitability of HexCers as possible mediators and/or prognostic markers in CAD.
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Affiliation(s)
- Philip Düsing
- Heart Center, Department of Internal Medicine II, University Hospital Bonn, Bonn, Germany
| | - Nadine N Heinrich
- Heart Center, Department of Internal Medicine II, University Hospital Bonn, Bonn, Germany
| | - Baravan Al-Kassou
- Heart Center, Department of Internal Medicine II, University Hospital Bonn, Bonn, Germany
| | - Katharina Gutbrod
- Institute of Molecular Physiology and Biotechnology of Plants, University of Bonn, Bonn, Germany
| | - Peter Dörmann
- Institute of Molecular Physiology and Biotechnology of Plants, University of Bonn, Bonn, Germany
| | - Georg Nickenig
- Heart Center, Department of Internal Medicine II, University Hospital Bonn, Bonn, Germany
| | - Felix Jansen
- Heart Center, Department of Internal Medicine II, University Hospital Bonn, Bonn, Germany
| | - Andreas Zietzer
- Heart Center, Department of Internal Medicine II, University Hospital Bonn, Bonn, Germany.
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Song R, Fond A, Li X, Tang M, Zhan X, Gordillo R, Moresco EMY, Beutler B, Turer EE. The dual lipid desaturase/hydroxylase DEGS2 controls phytoceramide levels necessary to counter intestinal inflammation. Dis Model Mech 2023; 16:dmm050043. [PMID: 37589563 PMCID: PMC10499023 DOI: 10.1242/dmm.050043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 08/10/2023] [Indexed: 08/18/2023] Open
Abstract
Intestinal immunity is dependent on barrier function to maintain quiescence. The mechanisms for the maintenance of this barrier are not fully understood. Delta 4-desaturase, sphingolipid 2 (DEGS2) is a lipid desaturase and hydroxylase that catalyzes the synthesis of ceramide and phytoceramide from dihydroceramide. Using a forward genetic approach, we found and validated a mutation in Degs2 as causative of increasing susceptibility to colitis and altering the phytoceramide balance in the colon. DEGS2 is expressed in the intestinal epithelium, and the colitis phenotype is dependent on the non-hematopoietic compartment of the mouse. In the absence of DEGS2, the colon lacks phytoceramides and accumulates large amounts of the precursor lipid dihydroceramide. In response to dextran sodium sulfate (DSS)-induced colitis, colonic epithelial cells in DEGS2-deficient mice had increased cell death and decreased proliferation compared to those in wild-type mice. These findings demonstrate that DEGS2 is needed to maintain epithelial integrity, protect against DSS-induced colitis and maintain lipid balance in vivo.
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Affiliation(s)
- Ran Song
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390-8505, USA
- Department of Internal Medicine, Division of Gastroenterology, University of Texas Southwestern Medical Center, Dallas, TX 75390-8505, USA
| | - Aaron Fond
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390-8505, USA
- Department of Internal Medicine, Division of Gastroenterology, University of Texas Southwestern Medical Center, Dallas, TX 75390-8505, USA
| | - Xiaohong Li
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390-8505, USA
| | - Miao Tang
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390-8505, USA
| | - Xiaoming Zhan
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390-8505, USA
| | - Ruth Gordillo
- Department of Internal Medicine, Touchstone Diabetes Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Eva Marie Y. Moresco
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390-8505, USA
| | - Bruce Beutler
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390-8505, USA
| | - Emre E. Turer
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390-8505, USA
- Department of Internal Medicine, Division of Gastroenterology, University of Texas Southwestern Medical Center, Dallas, TX 75390-8505, USA
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Cho YK, Lee S, Lee J, Doh J, Park JH, Jung YS, Lee YH. Lipid remodeling of adipose tissue in metabolic health and disease. Exp Mol Med 2023; 55:1955-1973. [PMID: 37653032 PMCID: PMC10545718 DOI: 10.1038/s12276-023-01071-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/30/2023] [Accepted: 06/05/2023] [Indexed: 09/02/2023] Open
Abstract
Adipose tissue is a dynamic and metabolically active organ that plays a crucial role in energy homeostasis and endocrine function. Recent advancements in lipidomics techniques have enabled the study of the complex lipid composition of adipose tissue and its role in metabolic disorders such as obesity, diabetes, and cardiovascular disease. In addition, adipose tissue lipidomics has emerged as a powerful tool for understanding the molecular mechanisms underlying these disorders and identifying bioactive lipid mediators and potential therapeutic targets. This review aims to summarize recent lipidomics studies that investigated the dynamic remodeling of adipose tissue lipids in response to specific physiological changes, pharmacological interventions, and pathological conditions. We discuss the molecular mechanisms of lipid remodeling in adipose tissue and explore the recent identification of bioactive lipid mediators generated in adipose tissue that regulate adipocytes and systemic metabolism. We propose that manipulating lipid-mediator metabolism could serve as a therapeutic approach for preventing or treating obesity-related metabolic diseases.
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Affiliation(s)
- Yoon Keun Cho
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Sumin Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Jaewon Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Junsang Doh
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Institute of Engineering Research, Bio-MAX Institute, Soft Foundry Institute, Seoul National University, Seoul, Republic of Korea
| | - Joo-Hong Park
- School of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Young-Suk Jung
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Yun-Hee Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea.
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Carrard J, Angst T, Weber N, Bienvenue J, Infanger D, Streese L, Hinrichs T, Croci I, Schmied C, Gallart-Ayala H, Höchsmann C, Koehler K, Hanssen H, Ivanisevic J, Schmidt-Trucksäss A. Investigating the circulating sphingolipidome response to a single high-intensity interval training session within healthy females and males in their twenties (SphingoHIIT): Protocol for a randomised controlled trial. F1000Res 2023; 11:1565. [PMID: 37533665 PMCID: PMC10390797 DOI: 10.12688/f1000research.128978.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/15/2023] [Indexed: 08/04/2023] Open
Abstract
Introduction: Growing scientific evidence indicates that sphingolipids predict cardiometabolic risk, independently of and beyond traditional biomarkers such as low-density lipoprotein cholesterol. To date, it remains largely unknown if and how exercise, a simple, low-cost, and patient-empowering modality to optimise cardiometabolic health, influences sphingolipid levels. The SphingoHIIT study aims to assess the response of circulating sphingolipid species to a single session of high-intensity interval training (HIIT). Methods: This single-centre randomised controlled trial (RCT) will last 11 days per participant and aim to include 32 young and healthy individuals aged 20-29 (50% females). Participants will be randomly allocated to the HIIT (n= 16) or control groups (physical rest, n= 16). Participants will self-sample fasted dried blood spots for three consecutive days before the intervention (HIIT versus rest) to determine baseline sphingolipid levels. Dried blood spots will also be collected at five time points (2, 15, 30, 60min, and 24h) following the intervention (HIIT versus rest). To minimise the dietary influence, participants will receive a standardised diet for four days, starting 24 hours before the first dried blood sampling. For females, interventions will be timed to fall within the early follicular phase to minimise the menstrual cycle's influence on sphingolipid levels. Finally, physical activity will be monitored for the whole study duration using a wrist accelerometer. Ethics and dissemination: The Ethics Committee of Northwest and Central Switzerland approved this protocol (ID 2022-00513). Findings will be disseminated in scientific journals and meetings. Trial Registration The trial was registered on www.clinicaltrials.gov (NCT05390866, https://clinicaltrials.gov/ct2/show/NCT05390866) on May 25, 2022.
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Affiliation(s)
- Justin Carrard
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, 4052, Switzerland
| | - Thomas Angst
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, 4052, Switzerland
| | - Nadia Weber
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, 4052, Switzerland
| | - Joëlle Bienvenue
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, 4052, Switzerland
| | - Denis Infanger
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, 4052, Switzerland
| | - Lukas Streese
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, 4052, Switzerland
| | - Timo Hinrichs
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, 4052, Switzerland
| | - Ilaria Croci
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, 4052, Switzerland
- Cardiac Exercise Research Group, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
| | - Christian Schmied
- Sports Cardiology Section, Department of Cardiology, University Heart Center Zurich,, University Hospital Zurich, Zurich, 8091, Switzerland
| | - Hector Gallart-Ayala
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne, Lausanne, 1005, Switzerland
| | - Christoph Höchsmann
- Department of Sport and Health Sciences, Technical University of Munich, Munich, Germany
| | - Karsten Koehler
- Department of Sport and Health Sciences, Technical University of Munich, Munich, Germany
| | - Henner Hanssen
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, 4052, Switzerland
| | - Julijana Ivanisevic
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne, Lausanne, 1005, Switzerland
| | - Arno Schmidt-Trucksäss
- Division of Sport and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, 4052, Switzerland
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Sakr HF, Sirasanagandla SR, Das S, Bima AI, Elsamanoudy AZ. Insulin Resistance and Hypertension: Mechanisms Involved and Modifying Factors for Effective Glucose Control. Biomedicines 2023; 11:2271. [PMID: 37626767 PMCID: PMC10452601 DOI: 10.3390/biomedicines11082271] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/18/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
Factors such as aging, an unhealthy lifestyle with decreased physical activity, snacking, a standard Western diet, and smoking contribute to raising blood pressure to a dangerous level, increasing the risk of coronary artery disease and heart failure. Atherosclerosis, or aging of the blood vessels, is a physiological process that has accelerated in the last decades by the overconsumption of carbohydrates as the primary sources of caloric intake, resulting in increased triglycerides and VLDL-cholesterol and insulin spikes. Classically, medications ranging from beta blockers to angiotensin II blockers and even calcium channel blockers were used alone or in combination with lifestyle modifications as management tools in modern medicine to control arterial blood pressure. However, it is not easy to control blood pressure or the associated complications. A low-carbohydrate, high-fat (LCHF) diet can reduce glucose and insulin spikes, improve insulin sensitivity, and lessen atherosclerosis risk factors. We reviewed articles describing the etiology of insulin resistance (IR) and its impact on arterial blood pressure from databases including PubMed, PubMed Central, and Google Scholar. We discuss how the LCHF diet is beneficial to maintaining arterial blood pressure at normal levels, slowing down the progression of atherosclerosis, and reducing the use of antihypertensive medications. The mechanisms involved in IR associated with hypertension are also highlighted.
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Affiliation(s)
- Hussein F. Sakr
- Department of Physiology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat 123, Oman
| | - Srinivasa Rao Sirasanagandla
- Department of Human and Clinical Anatomy, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat 123, Oman; (S.R.S.); (S.D.)
| | - Srijit Das
- Department of Human and Clinical Anatomy, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat 123, Oman; (S.R.S.); (S.D.)
| | - Abdulhadi I. Bima
- Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah 21465, Saudi Arabia; (A.I.B.); (A.Z.E.)
| | - Ayman Z. Elsamanoudy
- Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah 21465, Saudi Arabia; (A.I.B.); (A.Z.E.)
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45
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Linden MA, Burke SJ, Pirzadah HA, Huang TY, Batdorf HM, Mohammed WK, Jones KA, Ghosh S, Campagna SR, Collier JJ, Noland RC. Pharmacological inhibition of lipolysis prevents adverse metabolic outcomes during glucocorticoid administration. Mol Metab 2023; 74:101751. [PMID: 37295745 PMCID: PMC10300254 DOI: 10.1016/j.molmet.2023.101751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 06/12/2023] Open
Abstract
OBJECTIVE Glucocorticoids are one of the most commonly prescribed classes of anti-inflammatory drugs; however, chronic treatment promotes iatrogenic (drug-induced) diabetes. As part of their physiological role, glucocorticoids stimulate lipolysis to spare glucose. We hypothesized that persistent stimulation of lipolysis during glucocorticoid therapy plays a causative role in the development of iatrogenic diabetes. METHODS Male C57BL/6J mice were given 100 μg/mL corticosterone (Cort) in the drinking water for two weeks and were fed either normal chow (TekLad 8640) or the same diet supplemented with an adipose triglyceride lipase inhibitor (Atglistatin - 2 g/kg diet) to inhibit the first step of lipolysis. RESULTS Herein, we report for the first time that glucocorticoid administration promotes a unique state of substrate excess and energetic overload in skeletal muscle that primarily results from the rampant mobilization of endogenous fuels. Inhibiting lipolysis protected mice from Cort-induced gains in fat mass, excess ectopic lipid accrual, hyperinsulinemia, and hyperglycemia. The role lipolysis plays in Cort-mediated pathology appears to differ between tissues. Within skeletal muscle, Cort-induced lipolysis facilitated diversion of glucose-derived carbons toward the pentose phosphate and hexosamine biosynthesis pathways but contributed to <3% of the Cort-induced genomic adaptations. In contrast, Cort stimulation of lipolysis accounted for ∼35% of the genomic changes in the liver but had minimal impact on hepatic metabolites reported. CONCLUSIONS These data support the idea that activation of lipolysis plays a causal role in the progression toward iatrogenic diabetes during glucocorticoid therapy with differential impact on skeletal muscle and liver.
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Affiliation(s)
- Melissa A Linden
- Skeletal Muscle Metabolism Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA; Department of Exercise and Health Sciences, University of Massachusetts-Boston, Boston, MA, 02125, USA.
| | - Susan J Burke
- Laboratory of Immunogenetics, Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA.
| | - Humza A Pirzadah
- Skeletal Muscle Metabolism Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA.
| | - Tai-Yu Huang
- Skeletal Muscle Metabolism Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA.
| | - Heidi M Batdorf
- Laboratory of Islet Biology and Inflammation, Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA.
| | - Walid K Mohammed
- Skeletal Muscle Metabolism Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA.
| | - Katarina A Jones
- Biological and Small Molecule Mass Spectrometry Core, University of Tennessee, Knoxville, TN, 37916, USA.
| | - Sujoy Ghosh
- Laboratory of Computational Biology, Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA; Program in Cardiovascular and Metabolic Disorders and Center for Computational Biology, Duke-National University of Singapore Medical School, Singapore, 169857, Singapore.
| | - Shawn R Campagna
- Biological and Small Molecule Mass Spectrometry Core, University of Tennessee, Knoxville, TN, 37916, USA.
| | - J Jason Collier
- Laboratory of Islet Biology and Inflammation, Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA.
| | - Robert C Noland
- Skeletal Muscle Metabolism Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA.
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Lee WH, Najjar SM, Kahn CR, Hinds TD. Hepatic insulin receptor: new views on the mechanisms of liver disease. Metabolism 2023; 145:155607. [PMID: 37271372 PMCID: PMC10330768 DOI: 10.1016/j.metabol.2023.155607] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 05/26/2023] [Accepted: 05/28/2023] [Indexed: 06/06/2023]
Abstract
Over 65 % of people with obesity display the metabolic-associated fatty liver disease (MAFLD), which can manifest as steatohepatitis, fibrosis, cirrhosis, or liver cancer. The development and progression of MAFLD involve hepatic insulin resistance and reduced insulin clearance. This review discusses the relationships between altered insulin signaling, hepatic insulin resistance, and reduced insulin clearance in the development of MAFLD and how this provides the impetus for exploring the use of insulin sensitizers to curb this disease. The review also explores the role of the insulin receptor in hepatocytes and hepatic stellate cells and how it signals in metabolic and end-stage liver diseases. Finally, we discuss new research findings that indicate that advanced hepatic diseases may be an insulin-sensitive state in the liver and deliberate whether insulin sensitizers should be used to manage late-stage liver diseases.
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Affiliation(s)
- Wang-Hsin Lee
- Department of Pharmacology and Nutritional Sciences, University of Kentucky College of Medicine, Lexington, KY, USA
| | - Sonia M Najjar
- Department of Biomedical Sciences and the Diabetes Institute, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH, USA
| | - C Ronald Kahn
- Section of Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - Terry D Hinds
- Department of Pharmacology and Nutritional Sciences, University of Kentucky College of Medicine, Lexington, KY, USA; Barnstable Brown Diabetes Center, University of Kentucky College of Medicine, Lexington, KY, USA; Markey Cancer Center, University of Kentucky, Lexington, KY, USA.
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47
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Lallement J, Raho I, Merlen G, Rainteau D, Croyal M, Schiffano M, Kassis N, Doignon I, Soty M, Lachkar F, Krempf M, Van Hul M, Cani PD, Foufelle F, Amouyal C, Le Stunff H, Magnan C, Tordjmann T, Cruciani-Guglielmacci C. Hepatic deletion of serine palmitoyl transferase 2 impairs ceramide/sphingomyelin balance, bile acids homeostasis and leads to liver damage in mice. Biochim Biophys Acta Mol Cell Biol Lipids 2023; 1868:159333. [PMID: 37224999 DOI: 10.1016/j.bbalip.2023.159333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 02/24/2023] [Accepted: 04/30/2023] [Indexed: 05/26/2023]
Abstract
Ceramides (Cer) have been shown as lipotoxic inducers, which disturb numerous cell-signaling pathways, leading to metabolic disorders such as type 2 diabetes. In this study, we aimed to determine the role of de novo hepatic ceramide synthesis in energy and liver homeostasis in mice. We generated mice lacking serine palmitoyltransferase 2 (Sptlc2), the rate limiting enzyme of ceramide de novo synthesis, in liver under albumin promoter. Liver function, glucose homeostasis, bile acid (BA) metabolism and hepatic sphingolipids content were assessed using metabolic tests and LC-MS. Despite lower expression of hepatic Sptlc2, we observed an increased concentration of hepatic Cer, associated with a 10-fold increase in neutral sphingomyelinase 2 (nSMase2) expression, and a decreased sphingomyelin content in the liver. Sptlc2ΔLiv mice were protected against obesity induced by high fat diet and displayed a defect in lipid absorption. In addition, an important increase in tauro-muricholic acid was associated with a downregulation of the nuclear BA receptor FXR target genes. Sptlc2 deficiency also enhanced glucose tolerance and attenuated hepatic glucose production, while the latter effect was dampened in presence of nSMase2 inhibitor. Finally, Sptlc2 disruption promoted apoptosis, inflammation and progressive development of hepatic fibrosis, worsening with age. Our data suggest a compensatory mechanism to regulate hepatic ceramides content from sphingomyelin hydrolysis, with deleterious impact on liver homeostasis. In addition, our results show the involvement of hepatic sphingolipid modulation in BA metabolism and hepatic glucose production in an insulin-independent manner, which highlight the still under-researched role of ceramides in many metabolic functions.
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Affiliation(s)
- Justine Lallement
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, F-75013 Paris, France
| | - Ilyès Raho
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, F-75013 Paris, France
| | | | - Dominique Rainteau
- Sorbonne Université, Inserm, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint Antoine, Biochemistry Department, Paris, France
| | - Mikael Croyal
- Université de Nantes, CHU Nantes, CNRS, INSERM, l'institut du thorax, F-44000 Nantes, France; Université de Nantes, CHU Nantes, Inserm, CNRS, SFR Santé, Inserm UMS 016, CNRS UMS 3556, F-44000 Nantes, France; Plateforme de Spectrométrie de Masse du CRNH-O, UMR1280, Nantes, France
| | - Melody Schiffano
- Plateforme de Spectrométrie de Masse du CRNH-O, UMR1280, Nantes, France
| | - Nadim Kassis
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, F-75013 Paris, France
| | | | - Maud Soty
- Université Claude Bernard Lyon 1, Université de Lyon, INSERM UMR-S1213, Lyon, France
| | - Floriane Lachkar
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, 75006 Paris, France
| | | | - Matthias Van Hul
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain (Université catholique de Louvain), 1200 Brussels, Belgium; Walloon Excellence in Life Sciences and BIOtechnology (WELBIO) department, WEL Research Institute (WELRI), avenue Pasteur, 6, 1300 Wavre, Belgium
| | - Patrice D Cani
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, UCLouvain (Université catholique de Louvain), 1200 Brussels, Belgium; Walloon Excellence in Life Sciences and BIOtechnology (WELBIO) department, WEL Research Institute (WELRI), avenue Pasteur, 6, 1300 Wavre, Belgium
| | - Fabienne Foufelle
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, 75006 Paris, France
| | - Chloé Amouyal
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, F-75013 Paris, France
| | - Hervé Le Stunff
- Institut des Neurosciences Paris-Saclay, CNRS UMR 9197, Université Paris Saclay, France
| | - Christophe Magnan
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, F-75013 Paris, France
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Xiao N, Zhang T, Han M, Tian D, Liu J, Li S, Yang L, Pan G. Chlorogenic Acid Inhibits Ceramide Accumulation to Restrain Hepatic Glucagon Response. Nutrients 2023; 15:3173. [PMID: 37513589 PMCID: PMC10384019 DOI: 10.3390/nu15143173] [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: 06/16/2023] [Revised: 07/05/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Chlorogenic acid (CGA), a dietary natural phenolic acid, has been widely reported to regulate glucose and lipid metabolism. However, the protective effects and the underlying mechanisms of CGA on glucagon-induced hepatic glucose production remain largely uncharacterized. Herein, we investigated the efficacy of CGA on hepatic gluconeogenesis both in vivo and in vitro. The elevated levels of endogenous glucose production induced by infusion of glucagon or pyruvate were lowered in mice administered with CGA. Furthermore, chronic CGA treatment ameliorated the accumulation of glucose and ceramide in high-fat diet (HFD)-fed mice. CGA also attenuated HFD-fed-induced inflammation response. The protective effect of CGA on glucose production was further confirmed in primary mouse hepatocytes by inhibiting accumulation of ceramide and expression of p38 MAPK. Moreover, CGA administration in HFD-fed mice preserved the decreased phosphorylation of Akt in the liver, resulting in the inhibition of FoxO1 activation and, ultimately, hepatic gluconeogenesis. However, these protective effects were significantly attenuated by the addition of C2 ceramide. These results suggest that CGA inhibits ceramide accumulation to restrain hepatic glucagon response.
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Affiliation(s)
- Na Xiao
- College of Agronomy, Shandong Agriculture University, Tai'an 271018, China
| | - Tengfei Zhang
- College of Agronomy, Shandong Agriculture University, Tai'an 271018, China
| | - Mingli Han
- College of Agronomy, Shandong Agriculture University, Tai'an 271018, China
| | - Dan Tian
- College of Agronomy, Shandong Agriculture University, Tai'an 271018, China
| | - Jiawei Liu
- College of Agronomy, Shandong Agriculture University, Tai'an 271018, China
| | - Shan Li
- College of Agronomy, Shandong Agriculture University, Tai'an 271018, China
| | - Lele Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Guojun Pan
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an 271000, China
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Mohamadi A, Shiraseb F, Mirzababaei A, AkbarySedigh A, Ghorbani M, Clark CCT, Aali Y, Mirzaei K. The association between adherence to diet quality index and cardiometabolic risk factors in overweight and obese women: a cross-sectional study. Front Public Health 2023; 11:1169398. [PMID: 37521997 PMCID: PMC10374417 DOI: 10.3389/fpubh.2023.1169398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 06/22/2023] [Indexed: 08/01/2023] Open
Abstract
Background Obesity and overweight status increase the risk of cardiovascular disease. Diet quality can also predict the risk of cardiovascular diseases in obese and overweight patients. Therefore, in this study, we sought to examine the relationship between diet quality index (DQI) and cardiometabolic risk factors in obese and overweight women. Method A cross-sectional study was conducted on 197 Iranian women with a Body Mass Index (BMI) > 25, 18-48 years, and recruited from 20 Tehran Health Centers. Nutrition intake and DQI were assessed using a 147-item semi-quantitative food frequency questionnaire (FFQ). Additionally, anthropometric measurements, body composition, biochemical evaluations, and cardiometabolic risk factors were evaluated. Results There was an association between DQI and waist-to-hip ratio (WHR), atherogenic index of plasma (AIP), and CHOLINDEX in obese women, after adjusting for potential confounders. Whereas, there were no significant associations of the tertiles of DQI compared with the first tertile in other cardiometabolic risk factors, before and after adjustment. Conclusion This study provides evidence that dietary intake and DQI are associated with cardiometabolic risk factors and that dietary modification may be a predictor for reducing WHR, AIP, and CHOLINDEX. However, more research is needed to develop a DQI that reflects changes in cardiometabolic risk factors by considering women's eating habits and patterns.
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Affiliation(s)
- Azam Mohamadi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Farideh Shiraseb
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Atieh Mirzababaei
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Assa AkbarySedigh
- Department of Clinical Nutrition, School of Nutritional Science Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Moloud Ghorbani
- Department of Community Nutrition, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Cain C. T. Clark
- Centre for Intelligent Healthcare, Coventry University, Coventry, United Kingdom
| | - Yasaman Aali
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Khadijeh Mirzaei
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
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50
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Paoli A, Bianco A, Moro T, Mota JF, Coelho-Ravagnani CF. The Effects of Ketogenic Diet on Insulin Sensitivity and Weight Loss, Which Came First: The Chicken or the Egg? Nutrients 2023; 15:3120. [PMID: 37513538 PMCID: PMC10385501 DOI: 10.3390/nu15143120] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
The ketogenic diet (KD) is, nowadays, considered an interesting nutritional approach for weight loss and improvement in insulin resistance. Nevertheless, most of the studies available in the literature do not allow a clear distinction between its effects on insulin sensitivity per se, and the effects of weight loss induced by KDs on insulin sensitivity. In this review, we discuss the scientific evidence on the direct and weight loss mediated effects of KDs on glycemic status in humans, describing the KD's biochemical background and the underlying mechanisms.
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Affiliation(s)
- Antonio Paoli
- Department of Biomedical Sciences, University of Padua, 35127 Padua, Italy
- Research Center for High Performance Sport, UCAM, Catholic University of Murcia, 30107 Murcia, Spain
| | - Antonino Bianco
- Sport and Exercise Sciences Research Unit, University of Palermo, 90144 Palermo, Italy
| | - Tatiana Moro
- Department of Biomedical Sciences, University of Padua, 35127 Padua, Italy
| | - Joao Felipe Mota
- School of Nutrition, Federal University of Goiás, Goiânia 74605-080, Brazil
- APC Microbiome Ireland, Department of Medicine, School of Microbiology, University College Cork, T12 YT20 Cork, Ireland
| | - Christianne F Coelho-Ravagnani
- Research in Exercise and Nutrition in Health and Sports Performance-PENSARE, Post-Graduate Program in Movement Sciences, Institute of Health (INISA), Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Brazil
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