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Brun A, Denis P, Rambeau M, Rigaudiere JP, Jouve C, Mazurak V, Capel F. Polyunsaturated fatty acids prevent myosteatosis and lipotoxicity. J Nutr Biochem 2024:109722. [PMID: 39142445 DOI: 10.1016/j.jnutbio.2024.109722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 07/30/2024] [Accepted: 08/01/2024] [Indexed: 08/16/2024]
Abstract
Myosteatosis occurs in response to excess circulating fatty acids and is associated with muscle dysfunction. This study aimed to characterize the sequence of events of lipid-induced toxicity within muscle cells and the role of polyunsaturated fatty acids (PUFA) as potential preventive factors. Myosteatosis was induced in C2C12 myotubes exposed to palmitic acid (PAL 500μM). Furthermore, cells were co-incubated with PUFA (α-linolenic acid = ALA, Eicosapentaenoic acid = EPA, Docosahexaenoic acid = DHA; Arachidonic acid = ARA) over a period of 48 hours. Cell viability, morphology, and measures of lipid and protein metabolism were assessed at 6, 12, 24, and 48 hours. We observed that myotube integrity was rapidly and progressively disrupted by PAL treatment after 12 hours, ultimately leading to cell death (41.7% cell survival at 48 hours, p<0.05). Cell death did not occur in cells exposed to PAL+ARA and PAL+DHA. After six hours of PAL treatment, an accumulation of large lipid droplets was observed within the cell (6 folds, p<0.05). This was associated with an increase in ceramides (CER x3 fold change) and diacylglycerol (DAG x150 fold change) contents (p<0.05). At the same time, insulin was no longer able to stimulate protein synthesis (p<0.05) nor leverage autophagic flux (p<0.05). DHA and ARA were able to completely reverse the defect in protein synthesis and partially modulate the accumulation of CER and DAG. These findings present new and intriguing research avenues in the field of muscle metabolism and nutrition, particularly in the context of aging, chronic muscle disorders, and insulin resistance.
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Affiliation(s)
- Aurélien Brun
- UMR1019 Unité de Nutrition Humaine, Université Clermont Auvergne, INRAE, CRNH Auvergne, F-63000 Clermont-Ferrand, France
| | - Philippe Denis
- UMR1019 Unité de Nutrition Humaine, Université Clermont Auvergne, INRAE, CRNH Auvergne, F-63000 Clermont-Ferrand, France
| | - Mathieu Rambeau
- UMR1019 Unité de Nutrition Humaine, Université Clermont Auvergne, INRAE, CRNH Auvergne, F-63000 Clermont-Ferrand, France
| | - Jean-Paul Rigaudiere
- UMR1019 Unité de Nutrition Humaine, Université Clermont Auvergne, INRAE, CRNH Auvergne, F-63000 Clermont-Ferrand, France
| | - Chrystèle Jouve
- UMR1019 Unité de Nutrition Humaine, Université Clermont Auvergne, INRAE, CRNH Auvergne, F-63000 Clermont-Ferrand, France
| | - Vera Mazurak
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Frédéric Capel
- UMR1019 Unité de Nutrition Humaine, Université Clermont Auvergne, INRAE, CRNH Auvergne, F-63000 Clermont-Ferrand, France
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2
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Zhu Y, Hu Y, Pan Y, Li M, Niu Y, Zhang T, Sun H, Zhou S, Liu M, Zhang Y, Wu C, Ma Y, Guo Y, Wang L. Fatty infiltration in the musculoskeletal system: pathological mechanisms and clinical implications. Front Endocrinol (Lausanne) 2024; 15:1406046. [PMID: 39006365 PMCID: PMC11241459 DOI: 10.3389/fendo.2024.1406046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 06/10/2024] [Indexed: 07/16/2024] Open
Abstract
Fatty infiltration denotes the anomalous accrual of adipocytes in non-adipose tissue, thereby generating toxic substances with the capacity to impede the ordinary physiological functions of various organs. With aging, the musculoskeletal system undergoes pronounced degenerative alterations, prompting heightened scrutiny regarding the contributory role of fatty infiltration in its pathophysiology. Several studies have demonstrated that fatty infiltration affects the normal metabolism of the musculoskeletal system, leading to substantial tissue damage. Nevertheless, a definitive and universally accepted generalization concerning the comprehensive effects of fatty infiltration on the musculoskeletal system remains elusive. As a result, this review summarizes the characteristics of different types of adipose tissue, the pathological mechanisms associated with fatty infiltration in bone, muscle, and the entirety of the musculoskeletal system, examines relevant clinical diseases, and explores potential therapeutic modalities. This review is intended to give researchers a better understanding of fatty infiltration and to contribute new ideas to the prevention and treatment of clinical musculoskeletal diseases.
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Affiliation(s)
- Yihua Zhu
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yue Hu
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yalan Pan
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Traditional Chinese Medicine (TCM) Nursing Intervention Laboratory of Chronic Disease Key Laboratory, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Muzhe Li
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yuanyuan Niu
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Tianchi Zhang
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Haitao Sun
- Department of Orthopedic Surgery, Affiliated Huishan Hospital of Xinglin College of Nantong University, Wuxi, Jiangsu, China
| | - Shijie Zhou
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Mengmin Liu
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yili Zhang
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Chengjie Wu
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yong Ma
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Yancheng TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Yancheng TCM Hospital, Yancheng, Jiangsu, China
- Jiangsu CM Clinical Innovation Center of Degenerative Bone & Joint Disease, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, Jiangsu, China
| | - Yang Guo
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Jiangsu CM Clinical Innovation Center of Degenerative Bone & Joint Disease, Wuxi TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Wuxi, Jiangsu, China
| | - Lining Wang
- Laboratory of New Techniques of Restoration & Reconstruction, Institute of Traumatology & Orthopedics, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Chinese Medicine Centre (International Collaboration between Western Sydney University and Beijing University of Chinese Medicine), Western Sydney University, Sydney, Australia
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3
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Liu Y, Zhang X, Wang K, Li Q, Yan S, Shi H, Liu L, Liang S, Yang M, Su Z, Ge C, Jia J, Xu Z, Dou T. RNA-Seq Reveals Pathways Responsible for Meat Quality Characteristic Differences between Two Yunnan Indigenous Chicken Breeds and Commercial Broilers. Foods 2024; 13:2008. [PMID: 38998514 PMCID: PMC11241438 DOI: 10.3390/foods13132008] [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: 05/14/2024] [Revised: 06/17/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024] Open
Abstract
Poultry is a source of meat that is in great demand in the world. The quality of meat is an imperative point for shoppers. To explore the genes controlling meat quality characteristics, the growth and meat quality traits and muscle transcriptome of two indigenous Yunnan chicken breeds, Wuding chickens (WDs) and Daweishan mini chickens (MCs), were compared with Cobb broilers (CBs). The growth and meat quality characteristics of these two indigenous breeds were found to differ from CB. In particular, the crude fat (CF), inosine monophosphate content, amino acid (AA), and total fatty acid (TFA) content of WDs were significantly higher than those of CBs and MCs. In addition, it was found that MC pectoralis had 420 differentially expressed genes (DEGs) relative to CBs, and WDs had 217 DEGs relative to CBs. Among them, 105 DEGs were shared. The results of 10 selected genes were also confirmed by qPCR. The differentially expressed genes were six enriched Kyoto Encyclopedia of Genes and Genomes (KEGG) biological pathways including lysosomes, phagosomes, PPAR signaling pathways, cell adhesion molecules, cytokine-cytokine receptor interaction, and phagosome sphingolipid metabolism. Interestingly, four genes (LPL, GK, SCD, and FABP7) in the PPAR signal pathway related to fatty acid (FA) metabolism were elevated in WD muscles, which may account for higher CF, inosine monophosphate content, and AA and FA contents, key factors affecting meat quality. This work laid the foundation for improving the meat quality of Yunnan indigenous chickens, especially WD. In future molecular breeding, the genes in this study can be used as molecular screening markers and applied to the molecular breeding of chicken quality characteristics.
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Affiliation(s)
- Yong Liu
- Yunnan Rural Revitalization Education Institute, Yunnan Open University, Kunming 650101, China; (Y.L.)
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (X.Z.); (K.W.); (Q.L.); (C.G.); (J.J.)
- Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Bufialo Research Institute, Chinese Academy of Agricultural Sciences, Nanning 530001, China
| | - Xia Zhang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (X.Z.); (K.W.); (Q.L.); (C.G.); (J.J.)
- School of Biological and Food Engineering, Lvliang University, Lvliang 033000, China
| | - Kun Wang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (X.Z.); (K.W.); (Q.L.); (C.G.); (J.J.)
| | - Qihua Li
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (X.Z.); (K.W.); (Q.L.); (C.G.); (J.J.)
| | - Shixiong Yan
- Yunnan Rural Revitalization Education Institute, Yunnan Open University, Kunming 650101, China; (Y.L.)
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (X.Z.); (K.W.); (Q.L.); (C.G.); (J.J.)
| | - Hongmei Shi
- Yunnan Rural Revitalization Education Institute, Yunnan Open University, Kunming 650101, China; (Y.L.)
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (X.Z.); (K.W.); (Q.L.); (C.G.); (J.J.)
| | - Lixian Liu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (X.Z.); (K.W.); (Q.L.); (C.G.); (J.J.)
- Institute of Science and Technology, Chuxiong Normal University, Chuxiong 675000, China
| | - Shuangmin Liang
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Min Yang
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (X.Z.); (K.W.); (Q.L.); (C.G.); (J.J.)
| | - Zhengchang Su
- Department of Bioinformatics and Genomics, College of Computing and Informatics, the University of North Carolina at Charlotte, Charlotte, NC 28223, USA;
| | - Changrong Ge
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (X.Z.); (K.W.); (Q.L.); (C.G.); (J.J.)
| | - Junjing Jia
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (X.Z.); (K.W.); (Q.L.); (C.G.); (J.J.)
| | - Zhiqiang Xu
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Tengfei Dou
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China; (X.Z.); (K.W.); (Q.L.); (C.G.); (J.J.)
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Liu M, You Y, Zhu H, Chen Y, Hu Z, Duan J. N-Acetylcysteine Alleviates Impaired Muscular Function Resulting from Sphingosine Phosphate Lyase Functional Deficiency-Induced Sphingoid Base and Ceramide Accumulation in Caenorhabditis elegans. Nutrients 2024; 16:1623. [PMID: 38892556 PMCID: PMC11174433 DOI: 10.3390/nu16111623] [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: 04/16/2024] [Revised: 05/18/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024] Open
Abstract
Sphingosine-1-phosphate lyase (SPL) resides at the endpoint of the sphingolipid metabolic pathway, catalyzing the irreversible breakdown of sphingosine-1-phosphate. Depletion of SPL precipitates compromised muscle morphology and function; nevertheless, the precise mechanistic underpinnings remain elusive. Here, we elucidate a model of SPL functional deficiency in Caenorhabditis elegans using spl-1 RNA interference. Within these SPL-deficient nematodes, we observed diminished motility and perturbed muscle fiber organization, correlated with the accumulation of sphingoid bases, their phosphorylated forms, and ceramides (collectively referred to as the "sphingolipid rheostat"). The disturbance in mitochondrial morphology was also notable, as SPL functional loss resulted in heightened levels of reactive oxygen species. Remarkably, the administration of the antioxidant N-acetylcysteine (NAC) ameliorates locomotor impairment and rectifies muscle fiber disarray, underscoring its therapeutic promise for ceramide-accumulation-related muscle disorders. Our findings emphasize the pivotal role of SPL in preserving muscle integrity and advocate for exploring antioxidant interventions, such as NAC supplementation, as prospective therapeutic strategies for addressing muscle function decline associated with sphingolipid/ceramide metabolism disruption.
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Affiliation(s)
| | | | | | | | - Zhenying Hu
- Jiangxi Province Key Laboratory of Aging and Disease, Human Aging Research Institute (HARI), School of Life Science, Nanchang University, Nanchang 330031, China
| | - Jingjing Duan
- Jiangxi Province Key Laboratory of Aging and Disease, Human Aging Research Institute (HARI), School of Life Science, Nanchang University, Nanchang 330031, China
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5
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Corporeau C, Le Foll C, Cruciani-Guglielmacci C, Le Stunff H, Mithieux G, Magnan C, Delarue J. Fish oil minimises feed intake and improves insulin sensitivity in Zucker fa/fa rats. Br J Nutr 2024; 131:749-761. [PMID: 37877265 DOI: 10.1017/s0007114523002404] [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] [Indexed: 10/26/2023]
Abstract
Long-chain n-3 PUFA (LC n-3 PUFA) prevent, in rodents, insulin resistance (IR) induced by a high-fat and/or fructose diet but not IR induced by glucocorticoids. In humans, contrasting effects have also been reported. We investigated their effects on insulin sensitivity, feed intake (FI) and body weight gain in genetically insulin resistant male obese (fa/fa) Zucker (ZO) rats during the development of obesity. ZO rats were fed a diet supplemented with 7 % fish oil (FO) + 1 % corn oil (CO) (wt/wt) (ZOFO), while the control group was fed a diet containing 8 % fat from CO (wt/wt) (ZOCO). Male lean Zucker (ZL) rats fed either FO (ZLFO) or CO (ZLCO) diet were used as controls. FO was a marine-derived TAG oil containing EPA 90 mg/g + DHA 430 mg/g. During an oral glucose tolerance test, glucose tolerance remained unaltered by FO while insulin response was reduced in ZOFO only. Liver insulin sensitivity (euglycaemic-hyperinsulinaemic clamp + 2 deoxyglucose) was improved in ZOFO rats, linked to changes in phosphoenolpyruvate carboxykinase expression, activity and glucose-6-phosphatase activity. FI in response to intra-carotid insulin/glucose infusion was decreased similarly in ZOFO and ZOCO. Hypothalamic ceramides levels were lower in ZOFO than in ZOCO. Our study demonstrates that LC n-3 PUFA can minimise weight gain, possibly by alleviating hypothalamic lipotoxicity, and liver IR in genetically obese Zucker rats.
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Affiliation(s)
- Charlotte Corporeau
- Department of Nutritional Sciences, Hospital University, Faculty of Medicine, University of Brest, Plouzané, France
- Present address: Ifremer, University of Brest, CNRS, IRD, LEMAR, F-29280 Plouzané, France
| | - Christelle Le Foll
- Department of Nutritional Sciences, Hospital University, Faculty of Medicine, University of Brest, Plouzané, France
- Present address: Institute of Veterinary Physiology, University of Zurich, CH-8057, Zurich, Switzerland
| | | | - Hervé Le Stunff
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, F-75013 Paris, France
- Present address: Institut des Neurosciences Paris-Saclay-Université Paris-Saclay-CNRS UMR 9197, Gif-sur-Yvette, France
| | - Gilles Mithieux
- Inserm, U855, Lyon, F-69008, France
- University Lyon 1, Villeurbanne, F-69622, France
- University of Lyon, Lyon, F-69008, France
| | - Christophe Magnan
- Université Paris Cité, CNRS, Unité de Biologie Fonctionnelle et Adaptative, F-75013 Paris, France
| | - Jacques Delarue
- Department of Nutritional Sciences, ER7479 SPURBO, Hospital University, Faculty of Medicine University of Brest, Plouzane, France
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6
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Pan Y, Li J, Lin P, Wan L, Qu Y, Cao L, Wang L. A review of the mechanisms of abnormal ceramide metabolism in type 2 diabetes mellitus, Alzheimer's disease, and their co-morbidities. Front Pharmacol 2024; 15:1348410. [PMID: 38379904 PMCID: PMC10877008 DOI: 10.3389/fphar.2024.1348410] [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: 12/02/2023] [Accepted: 01/18/2024] [Indexed: 02/22/2024] Open
Abstract
The global prevalence of type 2 diabetes mellitus (T2DM) and Alzheimer's disease (AD) is rapidly increasing, revealing a strong association between these two diseases. Currently, there are no curative medication available for the comorbidity of T2DM and AD. Ceramides are structural components of cell membrane lipids and act as signal molecules regulating cell homeostasis. Their synthesis and degradation play crucial roles in maintaining metabolic balance in vivo, serving as important mediators in the development of neurodegenerative and metabolic disorders. Abnormal ceramide metabolism disrupts intracellular signaling, induces oxidative stress, activates inflammatory factors, and impacts glucose and lipid homeostasis in metabolism-related tissues like the liver, skeletal muscle, and adipose tissue, driving the occurrence and progression of T2DM. The connection between changes in ceramide levels in the brain, amyloid β accumulation, and tau hyper-phosphorylation is evident. Additionally, ceramide regulates cell survival and apoptosis through related signaling pathways, actively participating in the occurrence and progression of AD. Regulatory enzymes, their metabolites, and signaling pathways impact core pathological molecular mechanisms shared by T2DM and AD, such as insulin resistance and inflammatory response. Consequently, regulating ceramide metabolism may become a potential therapeutic target and intervention for the comorbidity of T2DM and AD. The paper comprehensively summarizes and discusses the role of ceramide and its metabolites in the pathogenesis of T2DM and AD, as well as the latest progress in the treatment of T2DM with AD.
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Affiliation(s)
| | | | | | | | | | | | - Lei Wang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
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Eggelbusch M, Charlton BT, Bosutti A, Ganse B, Giakoumaki I, Grootemaat AE, Hendrickse PW, Jaspers Y, Kemp S, Kerkhoff TJ, Noort W, van Weeghel M, van der Wel NN, Wesseling JR, Frings-Meuthen P, Rittweger J, Mulder ER, Jaspers RT, Degens H, Wüst RCI. The impact of bed rest on human skeletal muscle metabolism. Cell Rep Med 2024; 5:101372. [PMID: 38232697 PMCID: PMC10829795 DOI: 10.1016/j.xcrm.2023.101372] [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: 07/12/2023] [Revised: 10/19/2023] [Accepted: 12/14/2023] [Indexed: 01/19/2024]
Abstract
Insulin sensitivity and metabolic flexibility decrease in response to bed rest, but the temporal and causal adaptations in human skeletal muscle metabolism are not fully defined. Here, we use an integrative approach to assess human skeletal muscle metabolism during bed rest and provide a multi-system analysis of how skeletal muscle and the circulatory system adapt to short- and long-term bed rest (German Clinical Trials: DRKS00015677). We uncover that intracellular glycogen accumulation after short-term bed rest accompanies a rapid reduction in systemic insulin sensitivity and less GLUT4 localization at the muscle cell membrane, preventing further intracellular glycogen deposition after long-term bed rest. We provide evidence of a temporal link between the accumulation of intracellular triglycerides, lipotoxic ceramides, and sphingomyelins and an altered skeletal muscle mitochondrial structure and function after long-term bed rest. An intracellular nutrient overload therefore represents a crucial determinant for rapid skeletal muscle insulin insensitivity and mitochondrial alterations after prolonged bed rest.
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Affiliation(s)
- Moritz Eggelbusch
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands; Department of Nutrition and Dietetics, Amsterdam University Medical Centers, Amsterdam Movement Sciences, Amsterdam, the Netherlands; Faculty of Sports and Nutrition, Center of Expertise Urban Vitality, Amsterdam University of Applied Sciences, Amsterdam, the Netherlands
| | - Braeden T Charlton
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | | | - Bergita Ganse
- Research Centre for Musculoskeletal Science and Sports Medicine, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, UK; Clinics and Institutes of Surgery, Saarland University, Homburg, Germany
| | - Ifigenia Giakoumaki
- Research Centre for Musculoskeletal Science and Sports Medicine, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, UK
| | - Anita E Grootemaat
- Electron Microscopy Center Amsterdam, Department of Medical Biology, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Paul W Hendrickse
- Research Centre for Musculoskeletal Science and Sports Medicine, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, UK; Lancaster Medical School, Lancaster University, Lancaster, UK
| | - Yorrick Jaspers
- Laboratory Genetic Metabolic Diseases, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Stephan Kemp
- Laboratory Genetic Metabolic Diseases, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Tom J Kerkhoff
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - Wendy Noort
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - Michel van Weeghel
- Laboratory Genetic Metabolic Diseases, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Nicole N van der Wel
- Electron Microscopy Center Amsterdam, Department of Medical Biology, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Julia R Wesseling
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - Petra Frings-Meuthen
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Jörn Rittweger
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany; Department of Pediatrics and Adolescent Medicine, University Hospital Cologne, Cologne, Germany
| | - Edwin R Mulder
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany
| | - Richard T Jaspers
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - Hans Degens
- Research Centre for Musculoskeletal Science and Sports Medicine, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, UK; Lithuanian Sports University, Kaunas, Lithuania
| | - Rob C I Wüst
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands.
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8
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Brady EM, Cao TH, Moss AJ, Athithan L, Ayton SL, Redman E, Argyridou S, Graham-Brown MPM, Maxwell CB, Jones DJL, Ng L, Yates T, Davies MJ, McCann GP, Gulsin GS. Circulating sphingolipids and relationship to cardiac remodelling before and following a low-energy diet in asymptomatic Type 2 Diabetes. BMC Cardiovasc Disord 2024; 24:25. [PMID: 38172712 PMCID: PMC10765891 DOI: 10.1186/s12872-023-03623-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: 08/18/2023] [Accepted: 11/19/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Heart failure with preserved ejection fraction (HFpEF) is a heterogenous multi-system syndrome with limited efficacious treatment options. The prevalence of Type 2 diabetes (T2D) continues to rise and predisposes patients to HFpEF, and HFpEF remains one of the biggest challenges in cardiovascular medicine today. Novel therapeutic targets are required to meet this important clinical need. Deep phenotyping studies including -OMIC analyses can provide important pathogenic information to aid the identification of such targets. The aims of this study were to determine; 1) the impact of a low-energy diet on plasma sphingolipid/ceramide profiles in people with T2D compared to healthy controls and, 2) if the change in sphingolipid/ceramide profile is associated with reverse cardiovascular remodelling. METHODS Post-hoc analysis of a randomised controlled trial (NCT02590822) including adults with T2D with no cardiovascular disease who completed a 12-week low-energy (∼810 kcal/day) meal-replacement plan (MRP) and matched healthy controls (HC). Echocardiography, cardiac MRI and a fasting blood for lipidomics were undertaken pre/post-intervention. Candidate biomarkers were identified from case-control comparison (fold change > 1.5 and statistical significance p < 0.05) and their response to the MRP reported. Association between change in biomarkers and change indices of cardiac remodelling were explored. RESULTS Twenty-four people with T2D (15 males, age 51.1 ± 5.7 years), and 25 HC (15 male, 48.3 ± 6.6 years) were included. Subjects with T2D had increased left ventricular (LV) mass:volume ratio (0.84 ± 0.13 vs. 0.70 ± 0.08, p < 0.001), increased systolic function but impaired diastolic function compared to HC. Twelve long-chain polyunsaturated sphingolipids, including four ceramides, were downregulated in subjects with T2D at baseline. Three sphingomyelin species and all ceramides were inversely associated with LV mass:volume. There was a significant increase in all species and shift towards HC following the MRP, however, none of these changes were associated with reverse cardiac remodelling. CONCLUSION The lack of association between change in sphingolipids/ceramides and reverse cardiac remodelling following the MRP casts doubt on a causative role of sphingolipids/ceramides in the progression of heart failure in T2D. TRIAL REGISTRATION NCT02590822.
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Affiliation(s)
- Emer M Brady
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
- Leicester Van Geest Multi-Omics Facility, University of Leicester, Leicester, UK
| | - Thong H Cao
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
- Leicester Van Geest Multi-Omics Facility, University of Leicester, Leicester, UK
| | - Alastair J Moss
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
- Leicester Van Geest Multi-Omics Facility, University of Leicester, Leicester, UK
| | - Lavanya Athithan
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
| | - Sarah L Ayton
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
| | - Emma Redman
- Diabetes Research Centre, NIHR Leicester Biomedical Research Centre, Leicester General Hospital, Leicester, UK
| | - Stavroula Argyridou
- Diabetes Research Centre, NIHR Leicester Biomedical Research Centre, Leicester General Hospital, Leicester, UK
| | - Matthew P M Graham-Brown
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
| | - Colleen B Maxwell
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
- Leicester Van Geest Multi-Omics Facility, University of Leicester, Leicester, UK
| | - Donald J L Jones
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
- Leicester Van Geest Multi-Omics Facility, University of Leicester, Leicester, UK
| | - Leong Ng
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
- Leicester Van Geest Multi-Omics Facility, University of Leicester, Leicester, UK
| | - Thomas Yates
- Diabetes Research Centre, NIHR Leicester Biomedical Research Centre, Leicester General Hospital, Leicester, UK
| | - Melanie J Davies
- Diabetes Research Centre, NIHR Leicester Biomedical Research Centre, Leicester General Hospital, Leicester, UK
| | - Gerry P McCann
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK
- Leicester Van Geest Multi-Omics Facility, University of Leicester, Leicester, UK
| | - Gaurav S Gulsin
- Department of Cardiovascular Sciences, University of Leicester, NIHR Leicester Biomedical Research Centre, Glenfield Hospital, Leicester, LE3 9QP, UK.
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9
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Chen Y, Ling C, Chen M, Yu L, Yang J, Fang Q. Astaxanthin Ameliorates Worsened Muscle Dysfunction of MDX Mice Fed with a High-Fat Diet through Reducing Lipotoxicity and Regulating Gut Microbiota. Nutrients 2023; 16:33. [PMID: 38201863 PMCID: PMC10780320 DOI: 10.3390/nu16010033] [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: 10/22/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 01/12/2024] Open
Abstract
Duchenne muscular dystrophy (DMD), a severe X-linked inherited neuromuscular disease, has a high prevalence of obesity. Obesity exacerbates muscle damage and results in adverse clinical outcomes. Preventing obesity helps DMD patients delay disease progression and improve quality of life. Astaxanthin (AX) is a kind of carotenoid which has antioxidant and anti-adipogenesis effects. In this study, male C57BL/10ScSnDmdmdx/J mice were fed with a normal diet, a high-fat diet (HFD), and an HFD containing AX for 16 weeks, respectively. The results showed that AX significantly increased gastrocnemius fiber cross-section area and grip strength, improved treadmill endurance test and mitochondrial morphology, and reduced muscle triglyceride and malonaldehyde levels compared to the HFD. Lipidomic analysis revealed that AX decreased high levels of triglyceride, diglyceride, ceramides, and wax ester induced by HFD. Gut microbiota analysis indicated that AX supplementation failed to alleviate abnormal microbiota diversity, but increased the relative abundances of Akkermansia, Bifidobacterium, Butyricicoccus, and Staphylococcus. In conclusion, AX was expected to alleviate disease progression associated with obesity in DMD patients by reducing lipotoxicity and increasing the abundance of beneficial bacteria.
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Affiliation(s)
- Ying Chen
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China; (Y.C.); (L.Y.)
| | - Chenjie Ling
- Department of Clinical Nutrition, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215124, China;
| | - Mengting Chen
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Soochow University, Suzhou 215006, China;
| | - Liqiang Yu
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China; (Y.C.); (L.Y.)
| | - Jing Yang
- Department of Clinical Nutrition, The First Affiliated Hospital of Soochow University, Suzhou 215031, China
| | - Qi Fang
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China; (Y.C.); (L.Y.)
- Department of Clinical Nutrition, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 215124, China;
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10
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Luo JH, Zhang TM, Yang LL, Cai YY, Yang Y. Association between relative muscle strength and hypertension in middle-aged and older Chinese adults. BMC Public Health 2023; 23:2087. [PMID: 37880652 PMCID: PMC10598916 DOI: 10.1186/s12889-023-17007-6] [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: 06/09/2023] [Accepted: 10/17/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND The association between muscle defects and hypertension is well-established. However, the absence of pertinent and uncomplicated clinical indicators presents a challenge. Relative muscle strength (RMS) may offer a viable indicator. This study aimed to explore the association between RMS and hypertension. METHODS A total of 12,720 individuals aged ≥ 45 years from the 2011 wave of the China Health and Retirement Longitudinal Study (CHARLS) were included. Grip strength was recorded and appendicular skeletal muscle mass (ASM) was estimated using a validated mathematical formula. The RMS was calculated as the ratio of grip strength to ASM. Hypertension was determined based on previous diagnosis, history of hypertension medication use, and current blood pressure. Logistic regression models were employed to investigate the relationship between RMS and hypertension. RESULTS The prevalence of hypertension was 41.7% (5,307/12,720 patients). RMS was negatively correlated with hypertension with an OR (95% CI) of 0.68 (0.59-0.79) for males, 0.81 (0.73-0.90) for females, and 0.78 (0.72-0.85) for the entire population after adjusting for related covariates including age, education, marital history, smoking history, drinking history, diabetes, hyperlipidemia, and obesity. The trend test showed a linear association among males, females, or the entire population. Stratified analysis showed a consistent negative correlation between RMS and hypertension. CONCLUSIONS Higher RMS is an independent protective factor against hypertension and efforts to promote RMS may be beneficial for the prevention and management of hypertension.
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Affiliation(s)
- Jin-Hua Luo
- Geriatrics Research Unit, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
- Department of Geriatrics, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
| | - Tu-Ming Zhang
- Department of Geriatrics, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
| | - Lin-Lin Yang
- Department of Geriatrics, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
| | - Yu-Ying Cai
- Department of Geriatrics, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China
| | - Yu Yang
- Department of Geriatrics, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524000, China.
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11
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Ali-Berrada S, Guitton J, Tan-Chen S, Gyulkhandanyan A, Hajduch E, Le Stunff H. Circulating Sphingolipids and Glucose Homeostasis: An Update. Int J Mol Sci 2023; 24:12720. [PMID: 37628901 PMCID: PMC10454113 DOI: 10.3390/ijms241612720] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Sphingolipids are a family of lipid molecules produced through different pathways in mammals. Sphingolipids are structural components of membranes, but in response to obesity, they are implicated in the regulation of various cellular processes, including inflammation, apoptosis, cell proliferation, autophagy, and insulin resistance which favors dysregulation of glucose metabolism. Of all sphingolipids, two species, ceramides and sphingosine-1-phosphate (S1P), are also found abundantly secreted into the bloodstream and associated with lipoproteins or extracellular vesicles. Plasma concentrations of these sphingolipids can be altered upon metabolic disorders and could serve as predictive biomarkers of these diseases. Recent important advances suggest that circulating sphingolipids not only serve as biomarkers but could also serve as mediators in the dysregulation of glucose homeostasis. In this review, advances of molecular mechanisms involved in the regulation of ceramides and S1P association to lipoproteins or extracellular vesicles and how they could alter glucose metabolism are discussed.
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Affiliation(s)
- Sarah Ali-Berrada
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, F-75006 Paris, France; (S.A.-B.); (S.T.-C.); (A.G.)
- Institut Hospitalo-Universitaire ICAN, 75013 Paris, France
| | - Jeanne Guitton
- Institut des Neurosciences Paris-Saclay, Université Paris-Saclay, CNRS UMR 9197, 91400 Saclay, France;
| | - Sophie Tan-Chen
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, F-75006 Paris, France; (S.A.-B.); (S.T.-C.); (A.G.)
- Institut Hospitalo-Universitaire ICAN, 75013 Paris, France
| | - Anna Gyulkhandanyan
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, F-75006 Paris, France; (S.A.-B.); (S.T.-C.); (A.G.)
- Institut Hospitalo-Universitaire ICAN, 75013 Paris, France
| | - Eric Hajduch
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, F-75006 Paris, France; (S.A.-B.); (S.T.-C.); (A.G.)
- Institut Hospitalo-Universitaire ICAN, 75013 Paris, France
| | - Hervé Le Stunff
- Institut des Neurosciences Paris-Saclay, Université Paris-Saclay, CNRS UMR 9197, 91400 Saclay, France;
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12
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Muniz-Santos R, Lucieri-Costa G, de Almeida MAP, Moraes-de-Souza I, Brito MADSM, Silva AR, Gonçalves-de-Albuquerque CF. Lipid oxidation dysregulation: an emerging player in the pathophysiology of sepsis. Front Immunol 2023; 14:1224335. [PMID: 37600769 PMCID: PMC10435884 DOI: 10.3389/fimmu.2023.1224335] [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: 05/17/2023] [Accepted: 06/30/2023] [Indexed: 08/22/2023] Open
Abstract
Sepsis is a life-threatening organ dysfunction caused by abnormal host response to infection. Millions of people are affected annually worldwide. Derangement of the inflammatory response is crucial in sepsis pathogenesis. However, metabolic, coagulation, and thermoregulatory alterations also occur in patients with sepsis. Fatty acid mobilization and oxidation changes may assume the role of a protagonist in sepsis pathogenesis. Lipid oxidation and free fatty acids (FFAs) are potentially valuable markers for sepsis diagnosis and prognosis. Herein, we discuss inflammatory and metabolic dysfunction during sepsis, focusing on fatty acid oxidation (FAO) alterations in the liver and muscle (skeletal and cardiac) and their implications in sepsis development.
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Affiliation(s)
- Renan Muniz-Santos
- Laboratory of Immunopharmacology, Department of Physiology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Giovanna Lucieri-Costa
- Laboratory of Immunopharmacology, Department of Physiology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Matheus Augusto P. de Almeida
- Neuroscience Graduate Program, Federal Fluminense University, Niteroi, Brazil
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Isabelle Moraes-de-Souza
- Laboratory of Immunopharmacology, Department of Physiology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Adriana Ribeiro Silva
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Cassiano Felippe Gonçalves-de-Albuquerque
- Laboratory of Immunopharmacology, Department of Physiology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
- Neuroscience Graduate Program, Federal Fluminense University, Niteroi, Brazil
- Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
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13
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Gruzdeva O, Dyleva Y, Belik E, Uchasova E, Ponasenko A, Ivanov S, Zinets M, Stasev A, Kutikhin A, Markova V, Poddubnyak A, Gorbatovskaya E, Fanaskova E, Barbarash O. Expression of Ceramide-Metabolizing Enzymes in the Heart Adipose Tissue of Cardiovascular Disease Patients. Int J Mol Sci 2023; 24:ijms24119494. [PMID: 37298446 DOI: 10.3390/ijms24119494] [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: 05/04/2023] [Revised: 05/24/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023] Open
Abstract
Here, we examined the expression of ceramide metabolism enzymes in the subcutaneous adipose tissue (SAT), epicardial adipose tissue (EAT) and perivascular adipose tissue (PVAT) of 30 patients with coronary artery disease (CAD) and 30 patients with valvular heart disease (VHD) by means of quantitative polymerase chain reaction and fluorescent Western blotting. The EAT of patients with CAD showed higher expression of the genes responsible for ceramide biosynthesis (SPTLC1, SPTLC2, CERS1, 5, 6, DEGS1, and SMPD1) and utilization (ASAH1, SGMS1). PVAT was characterized by higher mRNA levels of CERS3, CERS4, DEGS1, SMPD1, and ceramide utilization enzyme (SGMS2). In patients with VHD, there was a high CERS4, DEGS1, and SGMS2 expression in the EAT and CERS3 and CERS4 expression in the PVAT. Among patients with CAD, the expression of SPTLC1 in SAT and EAT, SPTLC2 in EAT, CERS2 in all studied AT, CERS4 and CERS5 in EAT, DEGS1 in SAT and EAT, ASAH1 in all studied AT, and SGMS1 in EAT was higher than in those with VHD. Protein levels of ceramide-metabolizing enzymes were consistent with gene expression trends. The obtained results indicate an activation of ceramide synthesis de novo and from sphingomyelin in cardiovascular disease, mainly in EAT, that contributes to the accumulation of ceramides in this location.
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Affiliation(s)
- Olga Gruzdeva
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
- Department of Pathophysiology, Kemerovo State Medical University, 650029 Kemerovo, Russia
| | - Yulia Dyleva
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
| | - Ekaterina Belik
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
| | - Evgenia Uchasova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
| | - Anastasia Ponasenko
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
| | - Sergey Ivanov
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
| | - Maxim Zinets
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
| | - Alexander Stasev
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
| | - Anton Kutikhin
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
| | - Victoria Markova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
| | - Alena Poddubnyak
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
| | - Evgenia Gorbatovskaya
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
| | - Elena Fanaskova
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
| | - Olga Barbarash
- Department of Experimental Medicine, Research Institute for Complex Issues of Cardiovascular Diseases, 6, Sosnovy Boulevard, 650002 Kemerovo, Russia
- Department of Pathophysiology, Kemerovo State Medical University, 650029 Kemerovo, Russia
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14
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Bandet CL, Tan-Chen S, Ali-Berrada S, Campana M, Poirier M, Blachnio-Zabielska A, Pais-de-Barros JP, Rouch C, Ferré P, Foufelle F, Le Stunff H, Hajduch E. Ceramide analogue C2-cer induces a loss in insulin sensitivity in muscle cells through the salvage/recycling pathway. J Biol Chem 2023:104815. [PMID: 37178918 DOI: 10.1016/j.jbc.2023.104815] [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: 10/27/2022] [Revised: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
Ceramides have been shown to play a major role in the onset of skeletal muscle insulin resistance and therefore in the prevalence of type 2 diabetes (T2D). However, many of the studies involved in the discovery of deleterious ceramide actions used a non-physiological cell-permeable short-chain ceramide analogue, the C2-ceramide (C2-cer). In the present study, we determined how C2-cer promotes insulin resistance in muscle cells. We demonstrate that C2-cer enters the salvage/recycling pathway and becomes de-acylated, yielding sphingosine, re-acylation of which depends on the availability of long chain fatty acids provided by the lipogenesis pathway in muscle cells. Importantly, we show these salvaged ceramides are actually responsible for the inhibition of insulin signaling induced by C2-cer. Interestingly, we also show that the exogenous and endogenous mono-unsaturated fatty acid oleate prevents C2-cer to be recycled into endogenous ceramide species in a diacylglycerol O-acyltransferase 1 (DGAT1)-dependent mechanism, which forces free fatty acid metabolism towards triacylglyceride production. Altogether, the study highlights for the first time that C2-cer induces a loss in insulin sensitivity through the salvage/recycling pathway in muscle cells. This study also validates C2-cer as a convenient tool to decipher mechanisms by which long-chain ceramides mediate insulin resistance in muscle cells and suggests that in addition to the de novo ceramide synthesis, recycling of ceramide could contribute to muscle insulin resistance observed in obesity and T2D.
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Affiliation(s)
- Cécile L Bandet
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, F-75006 Paris, France; Institut Hospitalo-Universitaire ICAN, Paris, France
| | - Sophie Tan-Chen
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, F-75006 Paris, France; Institut Hospitalo-Universitaire ICAN, Paris, France
| | - Sarah Ali-Berrada
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, F-75006 Paris, France; Institut Hospitalo-Universitaire ICAN, Paris, France
| | - Mélanie Campana
- Université Paris-Saclay, CNRS UMR 9197, Institut des Neurosciences Paris-Saclay, CNRS UMR 9197, Saclay, France
| | - Maxime Poirier
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, F-75006 Paris, France; Institut Hospitalo-Universitaire ICAN, Paris, France
| | | | - Jean-Paul Pais-de-Barros
- Lipidomics Core Facility, INSERM UMR1231 - Université Bourgogne Franche Comté, 15 Boulevard Mal de Lattre de Tassigny, F-21000 Dijon, France
| | - Claude Rouch
- Université de Paris Cité, Functional and Adaptive Biology Unit, UMR 8251, CNRS, Paris, France
| | - Pascal Ferré
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, F-75006 Paris, France; Institut Hospitalo-Universitaire ICAN, Paris, France
| | - Fabienne Foufelle
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, F-75006 Paris, France; Institut Hospitalo-Universitaire ICAN, Paris, France
| | - Hervé Le Stunff
- Université Paris-Saclay, CNRS UMR 9197, Institut des Neurosciences Paris-Saclay, CNRS UMR 9197, Saclay, France
| | - Eric Hajduch
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, F-75006 Paris, France; Institut Hospitalo-Universitaire ICAN, Paris, France.
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15
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Lee M, Park S. Myosteatosis: a potential missing link between hypertension and metabolic disorder in the Asian population. Hypertens Res 2023:10.1038/s41440-023-01270-6. [PMID: 36997636 DOI: 10.1038/s41440-023-01270-6] [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: 01/15/2023] [Revised: 03/02/2023] [Accepted: 03/12/2023] [Indexed: 04/01/2023]
Abstract
Myosteatosis, by increasing skeletal and systemic insulin resistance, induces endothelial dysfunction and increases the risk of hypertension.
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Affiliation(s)
- Minyoung Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
- Institute of Endocrine Research, Yonsei University College of Medicine, Seoul, Korea
| | - Sungha Park
- Cardiology Division, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
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16
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Hou XW, Wang Y, Ke C, Pan CW. Metabolomics facilitates the discovery of metabolic profiles and pathways for myopia: A systematic review. Eye (Lond) 2023; 37:670-677. [PMID: 35322213 PMCID: PMC9998863 DOI: 10.1038/s41433-022-02019-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 02/16/2022] [Accepted: 03/09/2022] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Myopia is one of the major eye disorders and the global burden is increasing rapidly. Our purpose is to systematically summarize potential metabolic biomarkers and pathways in myopia to facilitate the understanding of disease mechanisms as well as the discovery of novel therapeutic measures. METHODS Myopia-related metabolomics studies were searched in electronic databases of PubMed and Web of Science until June 2021. Information regarding clinical and demographic characteristics of included studies and metabolomics findings were extracted. Myopia-related metabolic pathways were analysed for differential metabolic profiles, and the quality of included studies was assessed based on the QUADOMICS tool. Pathway analyses of differential metabolites were performed using bioinformatics tools and online software such as the Metaboanalyst 5.0. RESULTS The myopia-related metabolomics studies included in this study consisted of seven human and two animal studies. The results of the study quality assessment showed that studies were all phase I studies and all met the evaluation criteria of 70% or more. The myopia-control serum study identified 23 differential metabolites with the Sphingolipid metabolism pathway beings enriched. The high myopia-cataract aqueous humour study identified 40 differential metabolites with the Arginine biosynthesis pathway being enriched. The high myopia-control serum study identified 43 differential metabolites and 4 pathways were significantly associated with metabolites including Citrate cycle; Alanine, aspartate and glutamate metabolism; Glyoxylate and dicarboxylate metabolism; Biosynthesis of unsaturated fatty acids (all P value < 0.05). CONCLUSIONS This study summarizes potential metabolic biomarkers and pathways in myopia, providing new clues to elucidate disease mechanisms.
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Affiliation(s)
- Xiao-Wen Hou
- School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Ying Wang
- School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Chaofu Ke
- School of Public Health, Medical College of Soochow University, Suzhou, China
| | - Chen-Wei Pan
- School of Public Health, Medical College of Soochow University, Suzhou, China.
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17
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Wang Y, Sun Z, Zang G, Zhang L, Wang Z. Role of ceramides in diabetic foot ulcers (Review). Int J Mol Med 2023; 51:26. [PMID: 36799149 PMCID: PMC9943538 DOI: 10.3892/ijmm.2023.5229] [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: 09/09/2022] [Accepted: 01/20/2023] [Indexed: 02/09/2023] Open
Abstract
Diabetes mellitus (DM) is a metabolic disorder, which if not managed properly, can lead to serious health problems over time and impose significant financial burden on the patient, their family and society as a whole. The study of this disease and the underlying biological mechanism is gaining momentum. Multiple pieces of conclusive evidence show that ceramides are involved in the occurrence and development of diabetes. The present review focuses on the function of ceramides, a type of sphingolipid signaling molecule, to provide a brief description of ceramides and their metabolism, discuss the significant roles of ceramides in the healthy skin barrier, and speculate on the potential involvement of ceramides in the pathogenesis and development of diabetic foot ulcers (DFUs). Understanding these aspects of this disease more thoroughly is crucial to establish how ceramides contribute to the etiology of diabetic foot infections and identify possible therapeutic targets for the treatment of DFUs.
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Affiliation(s)
| | | | | | | | - Zhongqun Wang
- Correspondence to: Dr Zhongqun Wang, Department of Cardiology, Affiliated Hospital of Jiangsu University, 438 Jiefang Road, Jingkou, Zhenjiang, Jiangsu 212001, P.R. China, E-mail:
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18
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Zhao X, An X, Yang C, Sun W, Ji H, Lian F. The crucial role and mechanism of insulin resistance in metabolic disease. Front Endocrinol (Lausanne) 2023; 14:1149239. [PMID: 37056675 PMCID: PMC10086443 DOI: 10.3389/fendo.2023.1149239] [Citation(s) in RCA: 44] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 03/07/2023] [Indexed: 03/30/2023] Open
Abstract
Insulin resistance (IR) plays a crucial role in the development and progression of metabolism-related diseases such as diabetes, hypertension, tumors, and nonalcoholic fatty liver disease, and provides the basis for a common understanding of these chronic diseases. In this study, we provide a systematic review of the causes, mechanisms, and treatments of IR. The pathogenesis of IR depends on genetics, obesity, age, disease, and drug effects. Mechanistically, any factor leading to abnormalities in the insulin signaling pathway leads to the development of IR in the host, including insulin receptor abnormalities, disturbances in the internal environment (regarding inflammation, hypoxia, lipotoxicity, and immunity), metabolic function of the liver and organelles, and other abnormalities. The available therapeutic strategies for IR are mainly exercise and dietary habit improvement, and chemotherapy based on biguanides and glucagon-like peptide-1, and traditional Chinese medicine treatments (e.g., herbs and acupuncture) can also be helpful. Based on the current understanding of IR mechanisms, there are still some vacancies to follow up and consider, and there is also a need to define more precise biomarkers for different chronic diseases and lifestyle interventions, and to explore natural or synthetic drugs targeting IR treatment. This could enable the treatment of patients with multiple combined metabolic diseases, with the aim of treating the disease holistically to reduce healthcare expenditures and to improve the quality of life of patients to some extent.
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Affiliation(s)
| | | | | | | | - Hangyu Ji
- *Correspondence: Fengmei Lian, ; Hangyu Ji,
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Yang W, Lyu Y, Xiang R, Yang J. Long Noncoding RNAs in the Pathogenesis of Insulin Resistance. Int J Mol Sci 2022; 23:ijms232416054. [PMID: 36555704 PMCID: PMC9785789 DOI: 10.3390/ijms232416054] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/10/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Insulin resistance (IR), designated as the blunted response of insulin target tissues to physiological level of insulin, plays crucial roles in the development and progression of diabetes, nonalcoholic fatty liver disease (NAFLD) and other diseases. So far, the distinct mechanism(s) of IR still needs further exploration. Long non-coding RNA (lncRNA) is a class of non-protein coding RNA molecules with a length greater than 200 nucleotides. LncRNAs are widely involved in many biological processes including cell differentiation, proliferation, apoptosis and metabolism. More recently, there has been increasing evidence that lncRNAs participated in the pathogenesis of IR, and the dysregulated lncRNA profile played important roles in the pathogenesis of metabolic diseases including obesity, diabetes and NAFLD. For example, the lncRNAs MEG3, H19, MALAT1, GAS5, lncSHGL and several other lncRNAs have been shown to regulate insulin signaling and glucose/lipid metabolism in various tissues. In this review, we briefly introduced the general features of lncRNA and the methods for lncRNA research, and then summarized and discussed the recent advances on the roles and mechanisms of lncRNAs in IR, particularly focused on liver, skeletal muscle and adipose tissues.
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Affiliation(s)
- Weili Yang
- Beijing Key Laboratory of Diabetes Research and Care, Beijing Diabetes Institute, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Yixiang Lyu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
- Key Laboratory of Cardiovascular Science of the Ministry of Education, Center for Non-Coding RNA Medicine, Beijing 100191, China
| | - Rui Xiang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
- Key Laboratory of Cardiovascular Science of the Ministry of Education, Center for Non-Coding RNA Medicine, Beijing 100191, China
| | - Jichun Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
- Key Laboratory of Cardiovascular Science of the Ministry of Education, Center for Non-Coding RNA Medicine, Beijing 100191, China
- Correspondence:
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20
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Abstract
Circadian rhythms drive our daily behaviors to coincide with the earth's rotation on an approximate 24-h cycle. The circadian clock mechanism present in nearly every cell is responsible for our circadian rhythms and is comprised of a transcriptional-translational feedback loop in mammals. The central clock resides in the hypothalamus responding to external light cues, whereas peripheral clocks receive signals from the central clock and are also sensitive to cues from feeding and activity. Of the peripheral clocks, the skeletal muscle clock is particularly sensitive to exercise which has shown to be an important time-cue with the ability to influence and adjust the muscle clock phase in response to exercise timing. Since the skeletal muscle clock is also involved in the expression of tissue-specific gene expression-including glucoregulatory genes-this might suggest a role for exercise timing as a therapeutic strategy in metabolic diseases, like type 2 diabetes. Notably, those with type 2 diabetes have accompanied disruptions in their skeletal muscle clock mechanism which may also be related to the increased risk of type 2 diabetes seen among shift workers. Therefore, the direct influence of exercise on the skeletal muscle clock might support the use of exercise timing to provide disease-mitigating effects. Here, we highlight the potential use of time-of-day exercise as a chronotherapeutic tool within circadian medicine to improve the metabolic profile of type 2 diabetes and support long-term glycemic control, potentially working through the skeletal muscle clock and circadian physiology.
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Affiliation(s)
- Ryan A. Martin
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, Florida, USA
- Myology Institute, University of Florida, Gainesville, Florida, USA
| | - Karyn A. Esser
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, Florida, USA
- Myology Institute, University of Florida, Gainesville, Florida, USA
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21
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Kenéz Á, Bäßler SC, Jorge-Smeding E, Huber K. Ceramide metabolism associated with chronic dietary nutrient surplus and diminished insulin sensitivity in the liver, muscle, and adipose tissue of cattle. Front Physiol 2022; 13:958837. [PMID: 36003642 PMCID: PMC9393214 DOI: 10.3389/fphys.2022.958837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 07/12/2022] [Indexed: 12/04/2022] Open
Abstract
High dietary energy and protein supply is common practice in livestock nutrition, aiming to maximize growth and production performance. However, a chronic nutritional surplus induces obesity, promotes insulin insensitivity, and triggers low-grade inflammation. Thirty Holstein bulls were randomly assigned to two groups, low energy and protein (LEP), and high energy and protein (HEP) intake, provided from the 13th to the 20th month of life. Body weight, carcass composition, laminitis score, and circulating insulin and glucose concentrations were assessed. The expression and extent of phosphorylation of insulin signaling proteins were measured in the liver, muscle, and adipose tissue. The sphingolipid metabolome was quantified by a targeted liquid chromatography-mass spectrometry based metabolomics approach. The HEP bulls were obese, had hyperinsulinemia with euglycemia, and expressed clinical signs of chronic laminitis. In the liver, protein kinase B (PKB) phosphorylation was decreased and this was associated with a higher tissue concentration of ceramide 16:0, a sphingolipid that diminishes insulin action by dephosphorylating PKB. In the adipose tissue, insulin receptor expression was lower in HEP bulls, associated with higher concentration of hexosylceramide, which reduces the abundance of functional insulin receptors. Our findings confirm that diet-induced metabolic inflammation triggers ceramide accumulation and disturbs insulin signaling. As insulin insensitivity exacerbates metabolic inflammation, this self-reinforcing cycle could explain the deterioration of metabolic health apparent as chronic laminitis. By demonstrating molecular relationships between insulin signaling and sphingolipid metabolism in three major tissues, our data extend our mechanistic understanding of the role of ceramides in diet-induced metabolic inflammation.
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Affiliation(s)
- Ákos Kenéz
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
- *Correspondence: Ákos Kenéz, ; Korinna Huber,
| | - Sonja Christiane Bäßler
- Institute of Animal Science, Faculty of Agricultural Sciences, University of Hohenheim, Stuttgart, Germany
| | - Ezequiel Jorge-Smeding
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Korinna Huber
- Institute of Animal Science, Faculty of Agricultural Sciences, University of Hohenheim, Stuttgart, Germany
- *Correspondence: Ákos Kenéz, ; Korinna Huber,
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22
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Contribution of specific ceramides to obesity-associated metabolic diseases. Cell Mol Life Sci 2022; 79:395. [PMID: 35789435 PMCID: PMC9252958 DOI: 10.1007/s00018-022-04401-3] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 05/20/2022] [Accepted: 05/26/2022] [Indexed: 12/04/2022]
Abstract
Ceramides are a heterogeneous group of bioactive membrane sphingolipids that play specialized regulatory roles in cellular metabolism depending on their characteristic fatty acyl chain lengths and subcellular distribution. As obesity progresses, certain ceramide molecular species accumulate in metabolic tissues and cause cell-type-specific lipotoxic reactions that disrupt metabolic homeostasis and lead to the development of cardiometabolic diseases. Several mechanisms for ceramide action have been inferred from studies in vitro, but only recently have we begun to better understand the acyl chain length specificity of ceramide-mediated signaling in the context of physiology and disease in vivo. New discoveries show that specific ceramides affect various metabolic pathways and that global or tissue-specific reduction in selected ceramide pools in obese rodents is sufficient to improve metabolic health. Here, we review the tissue-specific regulation and functions of ceramides in obesity, thus highlighting the emerging concept of selectively inhibiting production or action of ceramides with specific acyl chain lengths as novel therapeutic strategies to ameliorate obesity-associated diseases.
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23
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Tucci S. An Altered Sphingolipid Profile as a Risk Factor for Progressive Neurodegeneration in Long-Chain 3-Hydroxyacyl-CoA Deficiency (LCHADD). Int J Mol Sci 2022; 23:ijms23137144. [PMID: 35806149 PMCID: PMC9266703 DOI: 10.3390/ijms23137144] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/23/2022] [Accepted: 06/25/2022] [Indexed: 12/03/2022] Open
Abstract
Long-chain 3-hydroxyacyl-CoA deficiency (LCHADD) and mitochondrial trifunctional protein (MTPD) belong to a group of inherited metabolic diseases affecting the degradation of long-chain chain fatty acids. During metabolic decompensation the incomplete degradation of fatty acids results in life-threatening episodes, coma and death. Despite fast identification at neonatal screening, LCHADD/MTPD present with progressive neurodegenerative symptoms originally attributed to the accumulation of toxic hydroxyl acylcarnitines and energy deficiency. Recently, it has been shown that LCHADD human fibroblasts display a disease-specific alteration of complex lipids. Accumulating fatty acids, due to defective β-oxidation, contribute to a remodeling of several lipid classes including mitochondrial cardiolipins and sphingolipids. In the last years the face of LCHADD/MTPD has changed. The reported dysregulation of complex lipids other than the simple acylcarnitines represents a novel aspect of disease development. Indeed, aberrant lipid profiles have already been associated with other neurodegenerative diseases such as Parkinson’s Disease, Alzheimer’s Disease, amyotrophic lateral sclerosis and retinopathy. Today, the physiopathology that underlies the development of the progressive neuropathic symptoms in LCHADD/MTPD is not fully understood. Here, we hypothesize an alternative disease-causing mechanism that contemplates the interaction of several factors that acting in concert contribute to the heterogeneous clinical phenotype.
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Affiliation(s)
- Sara Tucci
- Pharmacy, Medical Center, University of Freiburg, 79106 Freiburg, Germany;
- Department of General Pediatrics, Adolescent Medicine and Neonatology, Faculty of Medicine, Medical Centre-University of Freiburg, 79106 Freiburg, Germany
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24
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Wang Q, Zhan S, Han F, Liu Y, Wu H, Huang Z. The Possible Mechanism of Physiological Adaptation to the Low-Se Diet and Its Health Risk in the Traditional Endemic Areas of Keshan Diseases. Biol Trace Elem Res 2022; 200:2069-2083. [PMID: 34365573 PMCID: PMC8349466 DOI: 10.1007/s12011-021-02851-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/23/2021] [Indexed: 11/25/2022]
Abstract
Selenium is an essential trace element for humans and animals. As with oxygen and sulfur, etc., it belongs to the sixth main group of the periodic table of elements. Therefore, the corresponding amino acids, such as selenocysteine (Sec), serine (Ser), and cysteine (Cys), have similar spatial structure, physical, and chemical properties. In this review, we focus on the neglected but key role of serine in a possible mechanism of the physiological adaptation to Se-deficiency in human beings with an adequate intake of dietary protein: the insertion of Cys in place of Sec during the translation of selenoproteins dependent on the Sec insertion sequence element in the 3'UTR of mRNA at the UGA codon through a novel serine-dependent pathway for the de novo synthesis of the Cys-tRNA[Ser]Sec, similar to Sec-tRNA[Ser]Sec. We also discuss the important roles of serine in the metabolism of selenium directly or indirectly via GSH, and the maintenance of selenium homostasis regulated through the methylation modification of Sec-tRNA[Ser]Sec at the position 34U by SAM. Finally, we propose a hypothesis to explain why Keshan disease has gradually disappeared in China and predict the potential health risk of the human body in the physiological adaptation state of low selenium based on the results of animal experiments.
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Affiliation(s)
- Qin Wang
- Department of Nutrition and Metabolism, Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing, 100050, China
| | - Shuo Zhan
- Department of Nutrition and Metabolism, Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing, 100050, China
| | - Feng Han
- Department of Nutrition and Metabolism, Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing, 100050, China
| | - Yiqun Liu
- Department of Nutrition and Metabolism, Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing, 100050, China
| | - Hongying Wu
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Rd, Wuhan, 430022, Hubei Province, China.
| | - Zhenwu Huang
- Department of Nutrition and Metabolism, Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health, Beijing, 100050, China.
- The Key Laboratory of Micronutrients Nutrition, National Health Commission of The People's Republic of China, Beijing, China.
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25
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Multifunctional Role of Lipids in Modulating the Tumorigenic Properties of 4T1 Breast Cancer Cells. Int J Mol Sci 2022; 23:ijms23084240. [PMID: 35457057 PMCID: PMC9024985 DOI: 10.3390/ijms23084240] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/04/2022] [Accepted: 04/08/2022] [Indexed: 02/04/2023] Open
Abstract
Tumor growth and progression are linked to an altered lipid metabolism in the tumor microenvironment (TME), including tumor cells and tumor-associated macrophages (TAMs). A growing number of lipid metabolism targeting drugs have shown efficacy in anti-tumor therapy. In addition, exogenously applied lipids and lipid analogues have demonstrated anti-tumor activities in several cancers, including breast cancer. In this study, we investigated the anti-tumor efficacies of the natural lipids palmitic acid (PA), sphingomyelin (SM), ceramide (Cer) and docosahexaenoic acid (DHA) on breast cancer cells. All tested lipids reduced the malignancy of breast cancer cells in vitro by impairing cell proliferation, migration and invasiveness. PA showed superior anti-tumor properties, as it additionally impaired cancer cell viability by inducing apoptosis, without affecting healthy cells. Co-culture experiments further demonstrated that Cer and PA reduced the immunosuppressive phenotype of M2 macrophages and the M2 macrophage-promoted the epithelial–mesenchymal transition (EMT) and migration of breast cancer cells. At the molecular level, this coincided with the up-regulation of E-cadherin. Our results highlight a powerful role for exogenously applied PA and Cer in reducing breast cancer tumorigenicity by simultaneously targeting cancer cells and M2 macrophages. Our findings support the notion that lipids represent alternative biocompatible therapeutic agents for breast cancer.
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26
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Guo K, Savelieff MG, Rumora AE, Alakwaa FM, Callaghan BC, Hur J, Feldman EL. Plasma Metabolomics and Lipidomics Differentiate Obese Individuals by Peripheral Neuropathy Status. J Clin Endocrinol Metab 2022; 107:1091-1109. [PMID: 34878536 PMCID: PMC8947234 DOI: 10.1210/clinem/dgab844] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Indexed: 12/19/2022]
Abstract
CONTEXT Peripheral neuropathy (PN) is a frequent prediabetes and type 2 diabetes (T2D) complication. Multiple clinical studies reveal that obesity and dyslipidemia can also drive PN progression, independent of glycemia, suggesting a complex interplay of specific metabolite and/or lipid species may underlie PN. OBJECTIVE This work aimed to identify the plasma metabolomics and lipidomics signature that underlies PN in an observational study of a sample of individuals with average class 3 obesity. METHODS We performed plasma global metabolomics and targeted lipidomics on obese participants with (n = 44) and without PN (n = 44), matched for glycemic status, vs lean nonneuropathic controls (n = 43). We analyzed data by Wilcoxon, logistic regression, partial least squares-discriminant analysis, and group-lasso to identify differential metabolites and lipids by obesity and PN status. We also conducted subanalysis by prediabetes and T2D status. RESULTS Lean vs obese comparisons, regardless of PN status, identified the most significant differences in gamma-glutamyl and branched-chain amino acid metabolism from metabolomics analysis and triacylglycerols from lipidomics. Stratification by PN status within obese individuals identified differences in polyamine, purine biosynthesis, and benzoate metabolism. Lipidomics found diacylglycerols as the most significant subpathway distinguishing obese individuals by PN status, with additional contributions from phosphatidylcholines, sphingomyelins, ceramides, and dihydroceramides. Stratifying the obese group by glycemic status did not affect discrimination by PN status. CONCLUSION Obesity may be as strong a PN driver as prediabetes or T2D in a sample of individuals with average class 3 obesity, at least by plasma metabolomics and lipidomics profile. Metabolic and complex lipid pathways can differentiate obese individuals with and without PN, independent of glycemic status.
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Affiliation(s)
- Kai Guo
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
- NeuroNetwork for Emerging Therapies, University of Michigan, Ann Arbor, Michigan, USA
| | - Masha G Savelieff
- NeuroNetwork for Emerging Therapies, University of Michigan, Ann Arbor, Michigan, USA
| | - Amy E Rumora
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
- NeuroNetwork for Emerging Therapies, University of Michigan, Ann Arbor, Michigan, USA
| | - Fadhl M Alakwaa
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
- NeuroNetwork for Emerging Therapies, University of Michigan, Ann Arbor, Michigan, USA
| | - Brian C Callaghan
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
- NeuroNetwork for Emerging Therapies, University of Michigan, Ann Arbor, Michigan, USA
| | - Junguk Hur
- Department of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, USA
| | - Eva L Feldman
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
- NeuroNetwork for Emerging Therapies, University of Michigan, Ann Arbor, Michigan, USA
- Correspondence: Eva L. Feldman, MD, PhD, Department of Neurology, University of Michigan 5017 AAT-BSRB, 109 Zina Pitcher Pl, Ann Arbor, MI 48109-0588, USA.
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27
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Cannabidiol Downregulates Myocardial De Novo Ceramide Synthesis Pathway in a Rat Model of High-Fat Diet-Induced Obesity. Int J Mol Sci 2022; 23:ijms23042232. [PMID: 35216351 PMCID: PMC8880314 DOI: 10.3390/ijms23042232] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/11/2022] [Accepted: 02/14/2022] [Indexed: 11/17/2022] Open
Abstract
It is known that metabolic disturbances, including obesity, predispose to an increased incidence of cardiovascular diseases. Elevated consumption of dietary fat results in intramyocardial accumulation of lipids and their biologically active derivatives, which can disrupt the contractile function of the heart, its metabolism, and intracellular signaling pathways. Therefore, alternative methods, such as phytocannabinoids, are being sought for the treatment of obesity-related effects. In a model of rodent obesity (seven weeks of high-fat-diet (HFD) regime), we used cannabidiol—CBD therapy (intraperitoneal injections for 14 days; 10 mg/kg). High-performance and gas-liquid chromatographies were applied in order to determine sphingolipids in the heart and plasma as well as Western blotting for protein expression. Two-week CBD administration significantly inhibited the de novo ceramide synthesis pathway in the heart of HFD fed rats by lowering sphinganine and sphinganine-1-phosphate contents. The above reductions were accompanied by markedly diminished expressions of myocardial serine palmitoyltransferase 1 and 2 as well as ceramide synthase 5 and 6 in the HFD group with 2-week CBD treatment. To our knowledge, this research is the first that reveals unknown effects of CBD treatment on the heart, i.e., amelioration of de novo ceramide synthesis pathway in obese rats.
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28
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Błachnio-Zabielska AU, Roszczyc-Owsiejczuk K, Imierska M, Pogodzińska K, Rogalski P, Daniluk J, Zabielski P. CerS1 but Not CerS5 Gene Silencing, Improves Insulin Sensitivity and Glucose Uptake in Skeletal Muscle. Cells 2022; 11:206. [PMID: 35053322 PMCID: PMC8773817 DOI: 10.3390/cells11020206] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/31/2021] [Accepted: 01/05/2022] [Indexed: 12/11/2022] Open
Abstract
Skeletal muscle is perceived as a major tissue in glucose and lipid metabolism. High fat diet (HFD) lead to the accumulation of intramuscular lipids, including: long chain acyl-CoA, diacylglycerols, and ceramides. Ceramides are considered to be one of the most important lipid groups in the generation of skeletal muscle insulin resistance. So far, it has not been clearly established whether all ceramides adversely affect the functioning of the insulin pathway, or whether there are certain ceramide species that play a pivotal role in the induction of insulin resistance. Therefore, we designed a study in which the expression of CerS1 and CerS5 genes responsible for the synthesis of C18:0-Cer and C16:0-Cer, respectively, was locally silenced in the gastrocnemius muscle of HFD-fed mice through in vivo electroporation-mediated shRNA plasmids. Our study indicates that HFD feeding induced both, the systemic and skeletal muscle insulin resistance, which was accompanied by an increase in the intramuscular lipid levels, decreased activation of the insulin pathway and, consequently, a decrease in the skeletal muscle glucose uptake. CerS1 silencing leads to a reduction in C18:0-Cer content, with a subsequent increase in the activity of the insulin pathway, and an improvement in skeletal muscle glucose uptake. Such effects were not visible in case of CerS5 silencing, which indicates that the accumulation of C18:0-Cer plays a decisive role in the induction of skeletal muscle insulin resistance.
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Affiliation(s)
- Agnieszka U. Błachnio-Zabielska
- Department of Hygiene, Epidemiology and Metabolic Disorders, Medical University of Bialystok, Mickiewicza 2c, 15-089 Bialystok, Poland; (K.R.-O.); (M.I.); (K.P.)
| | - Kamila Roszczyc-Owsiejczuk
- Department of Hygiene, Epidemiology and Metabolic Disorders, Medical University of Bialystok, Mickiewicza 2c, 15-089 Bialystok, Poland; (K.R.-O.); (M.I.); (K.P.)
| | - Monika Imierska
- Department of Hygiene, Epidemiology and Metabolic Disorders, Medical University of Bialystok, Mickiewicza 2c, 15-089 Bialystok, Poland; (K.R.-O.); (M.I.); (K.P.)
| | - Karolina Pogodzińska
- Department of Hygiene, Epidemiology and Metabolic Disorders, Medical University of Bialystok, Mickiewicza 2c, 15-089 Bialystok, Poland; (K.R.-O.); (M.I.); (K.P.)
| | - Paweł Rogalski
- Department of Gastroenterology and Internal Medicine, Medical University of Bialystok, 15-089 Bialystok, Poland; (P.R.); (J.D.)
| | - Jarosław Daniluk
- Department of Gastroenterology and Internal Medicine, Medical University of Bialystok, 15-089 Bialystok, Poland; (P.R.); (J.D.)
| | - Piotr Zabielski
- Department of Medical Biology, Medical University of Bialystok, 15-089 Bialystok, Poland
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Yang J, Wang M, Yang D, Yan H, Wang Z, Yan D, Guo N. Integrated lipids biomarker of the prediabetes and type 2 diabetes mellitus Chinese patients. Front Endocrinol (Lausanne) 2022; 13:1065665. [PMID: 36743922 PMCID: PMC9897314 DOI: 10.3389/fendo.2022.1065665] [Citation(s) in RCA: 4] [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: 10/10/2022] [Accepted: 12/30/2022] [Indexed: 01/22/2023] Open
Abstract
INTRODUCTION Dyslipidemia is a hallmark of T2DM, and as such, analyses of lipid metabolic profiles in affected patients have the potential to permit the development of an integrated lipid metabolite-based biomarker model that can facilitate early patient diagnosis and treatment. METHODS Untargeted and targeted lipidomics approaches were used to analyze serum samples from newly diagnosed 93 Chinese participants in discovery cohort and 440 in validation cohort via UHPLC-MS and UHPLC-MS/MS first. The acid sphingomyelinase protein expression was analyzed by Western blot. RESULTS AND DISCUSSION Through these analyses, we developed a novel integrated biomarker signature composed of LPC 22:6, PC(16:0/20:4), PE(22:6/16:0), Cer(d18:1/24:0)/SM(d18:1/19:0), Cer(d18:1/24:0)/SM(d18:0/16:0), TG(18:1/18:2/18:2), TG(16:0/16:0/20:3), and TG(18:0/16:0/18:2). The area under the curve (AUC) values for this integrated biomarker signature for prediabetes and T2DM patients were 0.841 (cutoff: 0.565) and 0.894 (cutoff: 0.633), respectively. Furthermore, theresults of western blot analysis of frozen adipose tissue from 3 week (prediabetes) and 12 week (T2DM) Goto-Kakizaki (GK) rats also confirmed that acid sphingomyelinase is responsible for significant disruptions in ceramide and sphingomyelin homeostasis. Network analyses of the biomarkers associated with this biosignature suggested that the most profoundly affected lipid metabolism pathways in the context of diabetes include de novo ceramide synthesis, sphingomyelin metabolism, and additional pathways associated with phosphatidylcholine synthesis. Together, these results offer new biological insights regarding the role of serum lipids in the context of insidious T2DM development, and may offer new avenues for future diagnostic and/or therapeutic research.
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Affiliation(s)
- Jiaying Yang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
- College of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Heilongjiang, China
| | - Mei Wang
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Dawei Yang
- Zhong Yuan Academy of Biological Medicine, Liaocheng People’s Hospital, Liaocheng, Shandong, China
| | - Han Yan
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zhigang Wang
- College of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Heilongjiang, China
- *Correspondence: Zhigang Wang, ; Dan Yan, ; Na Guo,
| | - Dan Yan
- Beijing Institute of Clinical Pharmacy, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- *Correspondence: Zhigang Wang, ; Dan Yan, ; Na Guo,
| | - Na Guo
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
- *Correspondence: Zhigang Wang, ; Dan Yan, ; Na Guo,
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Lanzon B, Martin-Taboada M, Castro-Alves V, Vila-Bedmar R, González de Pablos I, Duberg D, Gomez P, Rodriguez E, Orešič M, Hyötyläinen T, Morales E, Ruperez FJ, Medina-Gomez G. Lipidomic and Metabolomic Signature of Progression of Chronic Kidney Disease in Patients with Severe Obesity. Metabolites 2021; 11:836. [PMID: 34940593 PMCID: PMC8707539 DOI: 10.3390/metabo11120836] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 12/15/2022] Open
Abstract
Severe obesity is a major risk for chronic kidney disease (CKD). Early detection and careful monitoring of renal function are critical for the prevention of CKD during obesity, since biopsies are not performed in patients with CKD and diagnosis is dependent on the assessment of clinical parameters. To explore whether distinct lipid and metabolic signatures in obesity may signify early stages of pathogenesis toward CKD, liquid chromatography-mass spectrometry (LC-MS) and gas chromatography-high resolution accurate mass-mass spectrometry (GC-HRAM-MS) analyses were performed in the serum and the urine of severely obese patients with and without CKD. Moreover, the impact of bariatric surgery (BS) in lipid and metabolic signature was also studied, through LC-MS and GC-HRAM-MS analyses in the serum and urine of patients with severe obesity and CKD before and after undergoing BS. Regarding patients with severe obesity and CKD compared to severely obese patients without CKD, serum lipidome analysis revealed significant differences in lipid signature. Furthermore, serum metabolomics profile revealed significant changes in specific amino acids, with isoleucine and tyrosine, increased in CKD patients compared with patients without CKD. LC-MS and GC-HRAM-MS analysis in serum of patients with severe obesity and CKD after BS showed downregulation of levels of triglycerides (TGs) and diglycerides (DGs) as well as a decrease in branched-chain amino acid (BCAA), lysine, threonine, proline, and serine. In addition, BS removed most of the correlations in CKD patients against biochemical parameters related to kidney dysfunction. Concerning urine analysis, hippuric acid, valine and glutamine were significantly decreased in urine from CKD patients after surgery. Interestingly, bariatric surgery did not restore all the lipid species, some of them decreased, hence drawing attention to them as potential targets for early diagnosis or therapeutic intervention. Results obtained in this study would justify the use of comprehensive mass spectrometry-based lipidomics to measure other lipids aside from conventional lipid profiles and to validate possible early markers of risk of CKD in patients with severe obesity.
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Affiliation(s)
- Borja Lanzon
- LIPOBETA Group, Department Basic Sciences of Health, Faculty of Sciences of Health, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain; (B.L.); (M.M.-T.); (R.V.-B.)
| | - Marina Martin-Taboada
- LIPOBETA Group, Department Basic Sciences of Health, Faculty of Sciences of Health, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain; (B.L.); (M.M.-T.); (R.V.-B.)
| | - Victor Castro-Alves
- School of Science and Technology, Örebro University, 702 81 Örebro, Sweden; (V.C.-A.); (D.D.); (T.H.)
| | - Rocio Vila-Bedmar
- LIPOBETA Group, Department Basic Sciences of Health, Faculty of Sciences of Health, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain; (B.L.); (M.M.-T.); (R.V.-B.)
| | | | - Daniel Duberg
- School of Science and Technology, Örebro University, 702 81 Örebro, Sweden; (V.C.-A.); (D.D.); (T.H.)
| | - Pilar Gomez
- Department of Surgery, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain; (P.G.); (E.R.)
| | - Elias Rodriguez
- Department of Surgery, Hospital Universitario 12 de Octubre, 28041 Madrid, Spain; (P.G.); (E.R.)
| | - Matej Orešič
- School of Medical Sciences, Örebro University, 702 81 Örebro, Sweden;
- Turku Bioscience, University of Turku and Åbo Akademi University, 20520 Turku, Finland
| | - Tuulia Hyötyläinen
- School of Science and Technology, Örebro University, 702 81 Örebro, Sweden; (V.C.-A.); (D.D.); (T.H.)
| | - Enrique Morales
- Department of Nephrology, University Hospital 12 de Octubre, 28041 Madrid, Spain; (I.G.d.P.); (E.M.)
- Research Institute of University Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
- Department of Medicine, Complutense University of Madrid, 28041 Madrid, Spain
| | - Francisco J. Ruperez
- Centro de Metabolómica y Bioanálisis (CEMBIO), Universidad San Pablo-CEU, CEU Universities, 28668 Boadilla del Monte, Spain;
| | - Gema Medina-Gomez
- LIPOBETA Group, Department Basic Sciences of Health, Faculty of Sciences of Health, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain; (B.L.); (M.M.-T.); (R.V.-B.)
- LAFEMEX Laboratory, Área de Bioquímica y Biología Molecular, Departamento de Ciencias Básicas de la Salud, Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain
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Bonilha I, Hajduch E, Luchiari B, Nadruz W, Le Goff W, Sposito AC. The Reciprocal Relationship between LDL Metabolism and Type 2 Diabetes Mellitus. Metabolites 2021; 11:metabo11120807. [PMID: 34940565 PMCID: PMC8708656 DOI: 10.3390/metabo11120807] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/25/2021] [Accepted: 11/25/2021] [Indexed: 12/14/2022] Open
Abstract
Type 2 diabetes mellitus and insulin resistance feature substantial modifications of the lipoprotein profile, including a higher proportion of smaller and denser low-density lipoprotein (LDL) particles. In addition, qualitative changes occur in the composition and structure of LDL, including changes in electrophoretic mobility, enrichment of LDL with triglycerides and ceramides, prolonged retention of modified LDL in plasma, increased uptake by macrophages, and the formation of foam cells. These modifications affect LDL functions and favor an increased risk of cardiovascular disease in diabetic individuals. In this review, we discuss the main findings regarding the structural and functional changes in LDL particles in diabetes pathophysiology and therapeutic strategies targeting LDL in patients with diabetes.
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Affiliation(s)
- Isabella Bonilha
- Cardiology Division, Atherosclerosis and Vascular Biology Laboratory (AtheroLab), State University of Campinas (Unicamp), Campinas 13083-887, Brazil; (I.B.); (B.L.)
| | - Eric Hajduch
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, F-75006 Paris, France;
| | - Beatriz Luchiari
- Cardiology Division, Atherosclerosis and Vascular Biology Laboratory (AtheroLab), State University of Campinas (Unicamp), Campinas 13083-887, Brazil; (I.B.); (B.L.)
| | - Wilson Nadruz
- Cardiology Division, Cardiovascular Pathophysiology Laboratory, State University of Campinas (Unicamp), Campinas 13083-887, Brazil;
| | - Wilfried Le Goff
- Unité de Recherche sur les Maladies Cardiovasculaires, le Métabolisme et la Nutrition, ICAN, Inserm, Sorbonne Université, F-75013 Paris, France;
| | - Andrei C. Sposito
- Cardiology Division, Atherosclerosis and Vascular Biology Laboratory (AtheroLab), State University of Campinas (Unicamp), Campinas 13083-887, Brazil; (I.B.); (B.L.)
- Correspondence: ; Tel.: +55-19-3521-7098; Fax: +55-19-3289-410
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Cai J, Zhong X, Liang J, Xu C, Yu H, Xian M, Yan C, Wang S. Structural characterization, anti-inflammatory and glycosidase inhibitory activities of two new polysaccharides from the root of Pueraria lobata. RSC Adv 2021; 11:35994-36006. [PMID: 35492792 PMCID: PMC9043251 DOI: 10.1039/d1ra07385k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 10/18/2021] [Indexed: 12/18/2022] Open
Abstract
Diabetes seriously endangers public health and brings a heavy economic burden to the country. Inflammation is one of the main inducing factors of type-2 diabetes (T2D) and may cause some complications of diabetes, such as diabetic encephalopathy and peripheral neuropathy. In-depth research and development of drugs to cure diabetes and complications are of great significance. Pueraria lobate is a medicinal herb used in several countries to treat many diseases. Here, two new polysaccharides (PLB-1-1 and PLB-1-2) were isolated and purified from the root of Pueraria lobata with molecular weights of 9.1 × 103 Da and 3.8 × 103 Da, respectively. The structure was evaluated by monosaccharide composition, GC-MS and NMR spectroscopy. It was determined that PLB-1-1 comprised →4)-α-d-Glcp-(1→, α-d-Glcp-(1→, →6)-β-d-Galp-(1→, →3)-α-l-Araf-(1→, →3,6)-β-d-Manp-(1→ and →4,6)-β-d-Manp-(1→, and PLB-1-2 consisted of →4)-α-d-Glcp-(1→, β-d-Glcp-(1→, →4,6)-β-d-Glcp-(1→, →3,6)-β-d-Manp-(1→ and α-l-Fucp-(1→. Furthermore, both PLB-1-1 and PLB-1-2 showed anti-inflammatory and inhibitory activities of α-glucosidase and α-amylase in vitro. Therefore, the new polysaccharides, i.e., PLB-1-1 and PLB-1-2, may be considered candidates for the treatment of diabetes and its related complications. Through the extraction, isolation and purification of Pueraria lobata, we identified two new polysaccharides with molecular weights of 9.1 × 103 Da and 3.8 × 103 Da, and found that they have excellent anti-inflammatory and glycosidase inhibitory effects.![]()
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Affiliation(s)
- Jiale Cai
- Guangdong Pharmaceutical University Guangzhou 510006 China .,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China.,Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China
| | - Xiaoting Zhong
- Guangdong Pharmaceutical University Guangzhou 510006 China .,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China.,Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China
| | - Jiayin Liang
- Guangdong Pharmaceutical University Guangzhou 510006 China .,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China.,Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China
| | - Can Xu
- Guangdong Pharmaceutical University Guangzhou 510006 China .,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China.,Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China
| | - Huanzheng Yu
- Guangdong Pharmaceutical University Guangzhou 510006 China .,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China.,Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China
| | - Minghua Xian
- Guangdong Pharmaceutical University Guangzhou 510006 China .,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China.,Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China
| | - Chunyan Yan
- Guangdong Pharmaceutical University Guangzhou 510006 China
| | - Shumei Wang
- Guangdong Pharmaceutical University Guangzhou 510006 China .,Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China.,Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006 China
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Long-Chain and Very Long-Chain Ceramides Mediate Doxorubicin-Induced Toxicity and Fibrosis. Int J Mol Sci 2021; 22:ijms222111852. [PMID: 34769283 PMCID: PMC8584314 DOI: 10.3390/ijms222111852] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 02/06/2023] Open
Abstract
Doxorubicin (Dox) is a chemotherapeutic agent with cardiotoxicity associated with profibrotic effects. Dox increases ceramide levels with pro-inflammatory effects, cell death, and fibrosis. The purpose of our study was to identify the underlying ceramide signaling pathways. We aimed to characterize the downstream effects on cell survival, metabolism, and fibrosis. Human fibroblasts (hFSF) were treated with 0.7 µM of Dox or transgenically overexpressed ceramide synthase 2 (FLAG-CerS2). Furthermore, cells were pre-treated with MitoTempo (MT) (2 h, 20 µM) or Fumonisin B1 (FuB) (4 h, 100 µM). Protein expression was measured by Western blot or immunofluorescence (IF). Ceramide levels were determined with mass spectroscopy (MS). Visualizations were conducted using laser scanning microscopy (LSM) or electron microscopy. Mitochondrial activity was measured using seahorse analysis. Dox and CerS2 overexpression increased CerS2 protein expression. Coherently, ceramides were elevated with the highest peak for C24:0. Ceramide- induced mitochondrial ROS production was reduced with MT or FuB preincubation. Mitochondrial homeostasis was reduced and accompanied by reduced ATP production. Our data show that the increase in pro-inflammatory ceramides is an essential contributor to Dox side-effects. The accumulation of ceramides resulted in a lipotoxic shift and subsequently mitochondrial structural and functional damage, which was partially reversible following inhibition of ceramide synthesis.
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Khodadoust MM. Inferring a causal relationship between ceramide levels and COVID-19 respiratory distress. Sci Rep 2021; 11:20866. [PMID: 34675292 PMCID: PMC8531370 DOI: 10.1038/s41598-021-00286-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 10/07/2021] [Indexed: 12/17/2022] Open
Abstract
A causal relationship between plasma ceramide concentration and respiratory distress symptoms in COVID-19 patients is inferred. In this study, plasma samples of 52 individuals infected with COVID-19 were utilized in a lipidomic analysis. Lipids belonging to the ceramide class exhibited a 400-fold increase in total plasma concentration in infected patients. Further analysis led to the demonstration of concentration dependency for severe COVID-19 respiratory symptoms in a subclass of ceramides. The subclasses Cer(d18:0/24:1), Cer(d18:1/24:1), and Cer(d18:1/22:0) were shown to be increased by 48-, 40-, and 33-fold, respectively, in infected plasma samples and to 116-, 91- and 50-fold, respectively, in plasma samples with respiratory distress. Hence, monitoring plasma ceramide concentration, can be a valuable tool for measuring effects of therapies on COVID-19 respiratory distress patients.
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35
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Magnan C, Le Stunff H. Role of hypothalamic de novo ceramides synthesis in obesity and associated metabolic disorders. Mol Metab 2021; 53:101298. [PMID: 34273578 PMCID: PMC8353504 DOI: 10.1016/j.molmet.2021.101298] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 06/28/2021] [Accepted: 07/09/2021] [Indexed: 12/31/2022] Open
Abstract
Background Sphingolipid-mediated signalling pathways are described as important players in the normal functioning of neurons and nonneuronal cells in the central nervous system (CNS). Scope of review This review aims to show role of de novo ceramide synthesis in the CNS in controling key physiological processes, including food intake, energy expenditure, and thermogenesis. The corollary is a condition that leads to a dysfunction in ceramide metabolism in these central regions that can have major consequences on the physiological regulation of energy balance. Major conclusions Excessive hypothalamic de novo ceramide synthesis has been shown to result in the establishment of central insulin resistance, endoplasmic reticulum stress, and inflammation. Additionally, excessive hypothalamic de novo ceramide synthesis has also been associated with changes in the activity of the autonomic nervous system. Such dysregulation of hypothalamic de novo ceramide synthesis forms the key starting point for the initiation of pathophysiological conditions such as obesity – which may or may not be associated with type 2 diabetes.
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Affiliation(s)
| | - Hervé Le Stunff
- CNRS UMR 9198 Institut des Neurosciences Paris Saclay (Neuro-PSI), Université Paris-Saclay, Saclay, France.
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36
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Mendham AE, Goedecke JH, Zeng Y, Larsen S, George C, Hauksson J, Fortuin-de Smidt MC, Chibalin AV, Olsson T, Chorell E. Exercise training improves mitochondrial respiration and is associated with an altered intramuscular phospholipid signature in women with obesity. Diabetologia 2021; 64:1642-1659. [PMID: 33770195 PMCID: PMC8187207 DOI: 10.1007/s00125-021-05430-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/14/2021] [Indexed: 01/06/2023]
Abstract
AIMS/HYPOTHESIS We sought to determine putative relationships among improved mitochondrial respiration, insulin sensitivity and altered skeletal muscle lipids and metabolite signature in response to combined aerobic and resistance training in women with obesity. METHODS This study reports a secondary analysis of a randomised controlled trial including additional measures of mitochondrial respiration, skeletal muscle lipidomics, metabolomics and protein content. Women with obesity were randomised into 12 weeks of combined aerobic and resistance exercise training (n = 20) or control (n = 15) groups. Pre- and post-intervention testing included peak oxygen consumption, whole-body insulin sensitivity (intravenous glucose tolerance test), skeletal muscle mitochondrial respiration (high-resolution respirometry), lipidomics and metabolomics (mass spectrometry) and lipid content (magnetic resonance imaging and spectroscopy). Proteins involved in glucose transport (i.e. GLUT4) and lipid turnover (i.e. sphingomyelin synthase 1 and 2) were assessed by western blotting. RESULTS The original randomised controlled trial showed that exercise training increased insulin sensitivity (median [IQR]; 3.4 [2.0-4.6] to 3.6 [2.4-6.2] x10-5 pmol l-1 min-1), peak oxygen consumption (mean ± SD; 24.9 ± 2.4 to 27.6 ± 3.4 ml kg-1 min-1), and decreased body weight (84.1 ± 8.7 to 83.3 ± 9.7 kg), with an increase in weight (pre intervention, 87.8± 10.9 to post intervention 88.8 ± 11.0 kg) in the control group (interaction p < 0.05). The current study shows an increase in mitochondrial respiration and content in response to exercise training (interaction p < 0.05). The metabolite and lipid signature at baseline were significantly associated with mitochondrial respiratory capacity (p < 0.05) but were not associated with whole-body insulin sensitivity or GLUT4 protein content. Exercise training significantly altered the skeletal muscle lipid profile, increasing specific diacylglycerol(32:2) and ceramide(d18:1/24:0) levels, without changes in other intermediates or total content of diacylglycerol and ceramide. The total content of cardiolipin, phosphatidylcholine (PC) and phosphatidylethanolamine (PE) increased with exercise training with a decrease in the PC:PE ratios containing 22:5 and 20:4 fatty acids. These changes were associated with content-driven increases in mitochondrial respiration (p < 0.05), but not with the increase in whole-body insulin sensitivity or GLUT4 protein content. Exercise training increased sphingomyelin synthase 1 (p < 0.05), with no change in plasma-membrane-located sphingomyelin synthase 2. CONCLUSIONS/INTERPRETATION The major findings of our study were that exercise training altered specific intramuscular lipid intermediates, associated with content-driven increases in mitochondrial respiration but not whole-body insulin sensitivity. This highlights the benefits of exercise training and presents putative target pathways for preventing lipotoxicity in skeletal muscle, which is typically associated with the development of type 2 diabetes.
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Affiliation(s)
- Amy E Mendham
- MRC/Wits Developmental Pathways for Health Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa.
- Division of Exercise Science and Sports Medicine, Department of Human Biology, University of Cape Town, Cape Town, South Africa.
| | - Julia H Goedecke
- Division of Exercise Science and Sports Medicine, Department of Human Biology, University of Cape Town, Cape Town, South Africa
- Non-communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
| | - Yingxu Zeng
- Hainan Tropical Ocean University, Sanya, Hainan, China
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Steen Larsen
- Center for Healthy Aging, Department of Biomedical Sciences, Copenhagen University, Copenhagen, Denmark
- Clinical Research Centre, Medical University of Bialystok, Bialystok, Poland
| | - Cindy George
- Non-communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
| | - Jon Hauksson
- Department of Radiation Sciences, Radiation Physics and Biomedical Engineering, Umeå University, Umeå, Sweden
| | - Melony C Fortuin-de Smidt
- Division of Exercise Science and Sports Medicine, Department of Human Biology, University of Cape Town, Cape Town, South Africa
- Non-communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
| | - Alexander V Chibalin
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Tommy Olsson
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Elin Chorell
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden.
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Sharma I, Liao Y, Zheng X, Kanwar YS. New Pandemic: Obesity and Associated Nephropathy. Front Med (Lausanne) 2021; 8:673556. [PMID: 34268323 PMCID: PMC8275856 DOI: 10.3389/fmed.2021.673556] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 05/28/2021] [Indexed: 12/12/2022] Open
Abstract
Incidence of obesity related renal disorders have increased 10-folds in recent years. One of the consequences of obesity is an increased glomerular filtration rate (GFR) that leads to the enlargement of the renal glomerulus, i.e., glomerulomegaly. This heightened hyper-filtration in the setting of type 2 diabetes irreparably damages the kidney and leads to progression of end stage renal disease (ESRD). The patients suffering from type 2 diabetes have progressive proteinuria, and eventually one third of them develop chronic kidney disease (CKD) and ESRD. For ameliorating the progression of CKD, inhibitors of renin angiotensin aldosterone system (RAAS) seemed to be effective, but on a short-term basis only. Long term and stable treatment strategies like weight loss via restricted or hypo-caloric diet or bariatric surgery have yielded better promising results in terms of amelioration of proteinuria and maintenance of normal GFR. Body mass index (BMI) is considered as a traditional marker for the onset of obesity, but apparently, it is not a reliable indicator, and thus there is a need for more precise evaluation of regional fat distribution and amount of muscle mass. With respect to the pathogenesis, recent investigations have suggested perturbation in fatty acid and cholesterol metabolism as the critical mediators in ectopic renal lipid accumulation associated with inflammation, increased generation of ROS, RAAS activation and consequential tubulo-interstitial injury. This review summarizes the renewed approaches for the obesity assessment and evaluation of the pathogenesis of CKD, altered renal hemodynamics and potential therapeutic targets.
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Affiliation(s)
- Isha Sharma
- Departments of Pathology and Medicine, Northwestern University, Chicago, IL, United States
| | - Yingjun Liao
- Departments of Pathology and Medicine, Northwestern University, Chicago, IL, United States.,Department of Nephrology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoping Zheng
- Departments of Pathology and Medicine, Northwestern University, Chicago, IL, United States.,Department of Urology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Yashpal S Kanwar
- Departments of Pathology and Medicine, Northwestern University, Chicago, IL, United States
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Different Lipid Signature in Fibroblasts of Long-Chain Fatty Acid Oxidation Disorders. Cells 2021; 10:cells10051239. [PMID: 34069977 PMCID: PMC8157847 DOI: 10.3390/cells10051239] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/15/2021] [Accepted: 05/17/2021] [Indexed: 12/16/2022] Open
Abstract
Long-chain fatty acid oxidation disorders (lc-FAOD) are a group of diseases affecting the degradation of long-chain fatty acids. In order to investigate the disease specific alterations of the cellular lipidome, we performed undirected lipidomics in fibroblasts from patients with carnitine palmitoyltransferase II, very long-chain acyl-CoA dehydrogenase, and long-chain 3-hydroxyacyl-CoA dehydrogenase. We demonstrate a deep remodeling of mitochondrial cardiolipins. The aberrant phosphatidylcholine/phosphatidylethanolamine ratio and the increased content of plasmalogens and of lysophospholipids support the theory of an inflammatory phenotype in lc-FAOD. Moreover, we describe increased ratios of sphingomyelin/ceramide and sphingomyelin/hexosylceramide in LCHAD deficiency which may contribute to the neuropathic phenotype of LCHADD/mitochondrial trifunctional protein deficiency.
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Sun H, Sherrier M, Li H. Skeletal Muscle and Bone - Emerging Targets of Fibroblast Growth Factor-21. Front Physiol 2021; 12:625287. [PMID: 33762965 PMCID: PMC7982600 DOI: 10.3389/fphys.2021.625287] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 02/16/2021] [Indexed: 12/13/2022] Open
Abstract
Fibroblast growth factor 21 (FGF21) is an atypical member of the FGF family, which functions as a powerful endocrine and paracrine regulator of glucose and lipid metabolism. In addition to liver and adipose tissue, recent studies have shown that FGF21 can also be produced in skeletal muscle. As the most abundant tissue in the human body, skeletal muscle has become increasingly recognized as a major site of metabolic activity and an important modulator of systemic metabolic homeostasis. The function and mechanism of action of muscle-derived FGF21 have recently gained attention due to the findings of considerably increased expression and secretion of FGF21 from skeletal muscle under certain pathological conditions. Recent reports regarding the ectopic expression of FGF21 from skeletal muscle and its potential effects on the musculoskeletal system unfolds a new chapter in the story of FGF21. In this review, we summarize the current knowledge base of muscle-derived FGF21 and the possible functions of FGF21 on homeostasis of the musculoskeletal system with a focus on skeletal muscle and bone.
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Affiliation(s)
- Hui Sun
- Musculoskeletal Growth & Regeneration Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Matthew Sherrier
- Musculoskeletal Growth & Regeneration Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Physical Medicine and Rehabilitation, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Hongshuai Li
- Musculoskeletal Growth & Regeneration Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
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40
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Bryndina IG, Shalagina MN, Protopopov VA, Sekunov AV, Zefirov AL, Zakirjanova GF, Petrov AM. Early Lipid Raft-Related Changes: Interplay between Unilateral Denervation and Hindlimb Suspension. Int J Mol Sci 2021; 22:ijms22052239. [PMID: 33668129 PMCID: PMC7956661 DOI: 10.3390/ijms22052239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/14/2021] [Accepted: 02/21/2021] [Indexed: 01/15/2023] Open
Abstract
Muscle disuse and denervation leads to muscle atrophy, but underlying mechanisms can be different. Previously, we have found ceramide (Cer) accumulation and lipid raft disruption after acute hindlimb suspension (HS), a model of muscle disuse. Herein, using biochemical and fluorescent approaches the influence of unilateral denervation itself and in combination with short-term HS on membrane-related parameters of rat soleus muscle was studied. Denervation increased immunoexpression of sphingomyelinase and Cer in plasmalemmal regions, but decreased Cer content in the raft fraction and enhanced lipid raft integrity. Preliminary denervation suppressed (1) HS-induced Cer accumulation in plasmalemmal regions, shown for both nonraft and raft-fractions; (2) HS-mediated decrease in lipid raft integrity. Similar to denervation, inhibition of the sciatic nerve afferents with capsaicin itself increased Cer plasmalemmal immunoexpression, but attenuated the membrane-related effects of HS. Finally, both denervation and capsaicin treatment increased immunoexpression of proapoptotic protein Bax and inhibited HS-driven increase in antiapoptotic protein Bcl-2. Thus, denervation can increase lipid raft formation and attenuate HS-induced alterations probably due to decrease of Cer levels in the raft fraction. The effects of denervation could be at least partially caused by the loss of afferentation. The study points to the importance of motor and afferent inputs in control of Cer distribution and thereby stability of lipid rafts in the junctional and extrajunctional membranes of the muscle.
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Affiliation(s)
- Irina G. Bryndina
- Department of Pathophysiology and Immunology, Izhevsk State Medical Academy, Kommunarov St. 281, Izhevsk 426034, Russia; (I.G.B.); (M.N.S.); (V.A.P.); (A.V.S.)
| | - Maria N. Shalagina
- Department of Pathophysiology and Immunology, Izhevsk State Medical Academy, Kommunarov St. 281, Izhevsk 426034, Russia; (I.G.B.); (M.N.S.); (V.A.P.); (A.V.S.)
| | - Vladimir A. Protopopov
- Department of Pathophysiology and Immunology, Izhevsk State Medical Academy, Kommunarov St. 281, Izhevsk 426034, Russia; (I.G.B.); (M.N.S.); (V.A.P.); (A.V.S.)
| | - Alexey V. Sekunov
- Department of Pathophysiology and Immunology, Izhevsk State Medical Academy, Kommunarov St. 281, Izhevsk 426034, Russia; (I.G.B.); (M.N.S.); (V.A.P.); (A.V.S.)
| | - Andrey L. Zefirov
- Institute of Neuroscience, Kazan State Medical University, Butlerova St. 49, Kazan 420012, Russia; (A.L.Z.); (G.F.Z.)
| | - Guzalia F. Zakirjanova
- Institute of Neuroscience, Kazan State Medical University, Butlerova St. 49, Kazan 420012, Russia; (A.L.Z.); (G.F.Z.)
- Laboratory of Biophysics of Synaptic Processes, Kazan Institute of Biochemistry and Biophysics, Federal Research Center “Kazan Scientific Center of RAS”, P. O. Box 30, Lobachevsky St. 2/31, Kazan 420111, Russia
| | - Alexey M. Petrov
- Institute of Neuroscience, Kazan State Medical University, Butlerova St. 49, Kazan 420012, Russia; (A.L.Z.); (G.F.Z.)
- Laboratory of Biophysics of Synaptic Processes, Kazan Institute of Biochemistry and Biophysics, Federal Research Center “Kazan Scientific Center of RAS”, P. O. Box 30, Lobachevsky St. 2/31, Kazan 420111, Russia
- Correspondence: or
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41
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Hajduch E, Lachkar F, Ferré P, Foufelle F. Roles of Ceramides in Non-Alcoholic Fatty Liver Disease. J Clin Med 2021; 10:jcm10040792. [PMID: 33669443 PMCID: PMC7920467 DOI: 10.3390/jcm10040792] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/10/2021] [Accepted: 02/12/2021] [Indexed: 12/12/2022] Open
Abstract
Non-alcoholic fatty liver disease is one of the most common chronic liver diseases, ranging from simple steatosis to steatohepatitis, fibrosis, and cirrhosis. Its prevalence is rapidly increasing and presently affects around 25% of the general population of Western countries, due to the obesity epidemic. Liver fat accumulation induces the synthesis of specific lipid species and particularly ceramides, a sphingolipid. In turn, ceramides have deleterious effects on hepatic metabolism, a phenomenon called lipotoxicity. We review here the evidence showing the role of ceramides in non-alcoholic fatty liver disease and the mechanisms underlying their effects.
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Affiliation(s)
- Eric Hajduch
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France; (E.H.); (F.L.); (P.F.)
- Institute of Cardiometabolism and Nutrition (ICAN), Hôpital Pitié-Salpêtrière, AP-HP, 75013 Paris, France
| | - Floriane Lachkar
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France; (E.H.); (F.L.); (P.F.)
- Institute of Cardiometabolism and Nutrition (ICAN), Hôpital Pitié-Salpêtrière, AP-HP, 75013 Paris, France
| | - Pascal Ferré
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France; (E.H.); (F.L.); (P.F.)
- Institute of Cardiometabolism and Nutrition (ICAN), Hôpital Pitié-Salpêtrière, AP-HP, 75013 Paris, France
| | - Fabienne Foufelle
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006 Paris, France; (E.H.); (F.L.); (P.F.)
- Institute of Cardiometabolism and Nutrition (ICAN), Hôpital Pitié-Salpêtrière, AP-HP, 75013 Paris, France
- Correspondence: ; Tel.: +33-1-44-27-24-25
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42
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Zywno H, Bzdega W, Kolakowski A, Kurzyna P, Harasim-Symbor E, Sztolsztener K, Chabowski A, Konstantynowicz-Nowicka K. The Influence of Coumestrol on Sphingolipid Signaling Pathway and Insulin Resistance Development in Primary Rat Hepatocytes. Biomolecules 2021; 11:biom11020268. [PMID: 33673122 PMCID: PMC7918648 DOI: 10.3390/biom11020268] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/08/2021] [Accepted: 02/10/2021] [Indexed: 12/12/2022] Open
Abstract
Coumestrol is a phytoestrogen widely known for its anti-diabetic, anti-oxidant, and anti-inflammatory properties. Thus, it gets a lot of attention as a potential agent in the nutritional therapy of diseases such as obesity and type 2 diabetes. In our study, we evaluated whether coumestrol affects insulin resistance development via the sphingolipid signaling pathway in primary rat hepatocytes. The cells were isolated from the male Wistar rat's liver with the use of collagenase perfusion. Next, we incubated the cells with the presence or absence of palmitic acid and/or coumestrol. Additionally, some groups were incubated with insulin. The sphingolipid concentrations were assessed by HPLC whereas the expression of all the proteins was evaluated by Western blot. Coumestrol markedly reduced the accumulation of sphingolipids, namely, ceramide and sphinganine through noticeable inhibition of the ceramide de novo synthesis pathway in insulin-resistant hepatocytes. Moreover, coumestrol augmented the expression of fatty acid transport proteins, especially FATP5 and FAT/CD36, which also were responsible for excessive sphingolipid accumulation. Furthermore, coumestrol altered the sphingolipid salvage pathway, which was observed as the excessive deposition of the sphingosine-1-phosphate and sphingosine. Our study clearly showed that coumestrol ameliorated hepatic insulin resistance in primary rat hepatocytes. Thus, we believe that our study may contribute to the discovery of novel preventive and therapeutic methods for metabolic disorders.
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43
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Zhang X, Xu D, Chen M, Wang Y, He L, Wang L, Wu J, Yin J. Impacts of Selected Dietary Nutrient Intakes on Skeletal Muscle Insulin Sensitivity and Applications to Early Prevention of Type 2 Diabetes. Adv Nutr 2021; 12:1305-1316. [PMID: 33418570 PMCID: PMC8321846 DOI: 10.1093/advances/nmaa161] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/11/2020] [Accepted: 11/13/2020] [Indexed: 11/14/2022] Open
Abstract
As the largest tissue in the body, skeletal muscle not only plays key roles in movement and glucose uptake and utilization but also mediates insulin sensitivity in the body by myokines. Insulin resistance in the skeletal muscle is a major feature of type 2 diabetes (T2D). A weakened response to insulin could lead to muscle mass loss and dysfunction. Increasing evidence in skeletal muscle cells, rodents, nonhuman primates, and humans has shown that restriction of caloric or protein intake positively mediates insulin sensitivity. Restriction of essential or nonessential amino acids was reported to facilitate glucose utilization and regulate protein turnover in skeletal muscle under certain conditions. Furthermore, some minerals, such as zinc, chromium, vitamins, and some natural phytochemicals such as curcumin, resveratrol, berberine, astragalus polysaccharide, emodin, and genistein, have been shown recently to protect skeletal muscle cells, mice, or humans with or without diabetes from insulin resistance. In this review, we discuss the roles of nutritional interventions in the regulation of skeletal muscle insulin sensitivity. A comprehensive understanding of the nutritional regulation of insulin signaling would contribute to the development of tools and treatment programs for improving skeletal muscle health and for preventing T2D.
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Affiliation(s)
- Xin Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China,State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Doudou Xu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Meixia Chen
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yubo Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Linjuan He
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lu Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jiangwei Wu
- College of Animal Science and Technology, Northwest Agriculture and Forestry University, Yangling, China
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He Q, Bo J, Shen R, Li Y, Zhang Y, Zhang J, Yang J, Liu Y. S1P Signaling Pathways in Pathogenesis of Type 2 Diabetes. J Diabetes Res 2021; 2021:1341750. [PMID: 34751249 PMCID: PMC8571914 DOI: 10.1155/2021/1341750] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 12/24/2020] [Accepted: 01/04/2021] [Indexed: 02/06/2023] Open
Abstract
The pathogenesis of type 2 diabetes mellitus (T2DM) is very complicated. The currently well-accepted etiology is the "Ominous Octet" theory proposed by Professor Defronzo. Since presently used drugs for T2DM have limitations and harmful side effects, studies regarding alternative treatments are being conducted. Analyzing the pharmacological mechanism of biomolecules in view of pathogenesis is an effective way to assess new drugs. Sphingosine 1 phosphate (S1P), an endogenous lipid substance in the human body, has attracted increasing attention in the T2DM research field. This article reviews recent study updates of S1P, summarizing its effects on T2DM with respect to pathogenesis, promoting β cell proliferation and inhibiting apoptosis, reducing insulin resistance, protecting the liver and pancreas from lipotoxic damage, improving intestinal incretin effects, lowering basal glucagon levels, etc. With increasing research, S1P may help treat and prevent T2DM in the future.
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Affiliation(s)
- Qiong He
- Department of Endocrinology, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Jiaqi Bo
- Department of Second Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Ruihua Shen
- Department of Second Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Yan Li
- Department of Second Medical College, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Yi Zhang
- Department of Pharmacology, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
- Key Laboratory of Cellular Physiology, Ministry of Education, Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Jiaxin Zhang
- Department of Endocrinology, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Jing Yang
- Department of Endocrinology, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
| | - Yunfeng Liu
- Department of Endocrinology, First Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China
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45
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Critical Role for AMPK in Metabolic Disease-Induced Chronic Kidney Disease. Int J Mol Sci 2020; 21:ijms21217994. [PMID: 33121167 PMCID: PMC7663488 DOI: 10.3390/ijms21217994] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/23/2020] [Accepted: 10/25/2020] [Indexed: 02/07/2023] Open
Abstract
Chronic kidney disease (CKD) is prevalent in 9.1% of the global population and is a significant public health problem associated with increased morbidity and mortality. CKD is associated with highly prevalent physiological and metabolic disturbances such as hypertension, obesity, insulin resistance, cardiovascular disease, and aging, which are also risk factors for CKD pathogenesis and progression. Podocytes and proximal tubular cells of the kidney strongly express AMP-activated protein kinase (AMPK). AMPK plays essential roles in glucose and lipid metabolism, cell survival, growth, and inflammation. Thus, metabolic disease-induced renal diseases like obesity-related and diabetic chronic kidney disease demonstrate dysregulated AMPK in the kidney. Activating AMPK ameliorates the pathological and phenotypical features of both diseases. As a metabolic sensor, AMPK regulates active tubular transport and helps renal cells to survive low energy states. AMPK also exerts a key role in mitochondrial homeostasis and is known to regulate autophagy in mammalian cells. While the nutrient-sensing role of AMPK is critical in determining the fate of renal cells, the role of AMPK in kidney autophagy and mitochondrial quality control leading to pathology in metabolic disease-related CKD is not very clear and needs further investigation. This review highlights the crucial role of AMPK in renal cell dysfunction associated with metabolic diseases and aims to expand therapeutic strategies by understanding the molecular and cellular processes underlying CKD.
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46
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Sellin J, Fülle JB, Thiele C, Bauer R, Bülow MH. Free fatty acid determination as a tool for modeling metabolic diseases in Drosophila. JOURNAL OF INSECT PHYSIOLOGY 2020; 126:104090. [PMID: 32730782 DOI: 10.1016/j.jinsphys.2020.104090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 06/10/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
Free or non-esterified fatty acids are the product of lipolysis of storage fat, i.e. triacylglyceroles. When the amount of fat exceeds the capacity of lipid-storing organs, free fatty acids affect and damage other non-lipid-storing organs. This process is termed lipotoxicity. Within a cell, free fatty acids can damage mitochondria, and lipotoxicity-induced mitochondrial damage has been associated recently with Peroxisomal Biogenesis Disorders. Drosophila melanogaster has a rising popularity as a model organism for metabolic diseases, but an optimized assay for measuring free fatty acids in Drosophila tissue samples is missing. Here we present a detailed protocol highlighting technical requirements and pitfalls to determine free fatty acids in samples of Drosophila tissue. The colorimetric assay allows the reproducible and cost-efficient measurement of free fatty acids in a 96 well plate format. We used our assay to determine changes in free fatty acid levels in different developmental stages and feeding conditions, and found that larvae and adults have different patterns of free fatty acid formation during starvation. Our assay is a valuable tool in the modeling of metabolic diseases with Drosophila melanogaster.
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Affiliation(s)
- Julia Sellin
- University of Bonn, Life & Medical Sciences Institute (LIMES), Molecular Developmental Biology, Carl-Troll-Straße 31, 53115 Bonn, Germany.
| | - Judith B Fülle
- Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, Manchester M13 9PT, UK; Skin Research Institute of Singapore, A*STAR, 8A Biomedical Grove, Immunos #06-06, Singapore, Singapore
| | - Christoph Thiele
- University of Bonn, Life & Medical Sciences Institute (LIMES), Biochemistry & Cell Biology of Lipids, Carl-Troll-Straße 31, 53115 Bonn, Germany
| | - Reinhard Bauer
- University of Bonn, Life & Medical Sciences Institute (LIMES), Molecular Developmental Biology, Carl-Troll-Straße 31, 53115 Bonn, Germany
| | - Margret H Bülow
- University of Bonn, Life & Medical Sciences Institute (LIMES), Molecular Developmental Biology, Carl-Troll-Straße 31, 53115 Bonn, Germany.
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Keppley LJW, Walker SJ, Gademsey AN, Smith JP, Keller SR, Kester M, Fox TE. Nervonic acid limits weight gain in a mouse model of diet-induced obesity. FASEB J 2020; 34:15314-15326. [PMID: 32959931 DOI: 10.1096/fj.202000525r] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 09/03/2020] [Accepted: 09/09/2020] [Indexed: 12/18/2022]
Abstract
Lipid perturbations contribute to detrimental outcomes in obesity. We previously demonstrated that nervonic acid, a C24:1 ω-9 fatty acid, predominantly acylated to sphingolipids, including ceramides, are selectively reduced in a mouse model of obesity. It is currently unknown if deficiency of nervonic acid-sphingolipid metabolites contribute to complications of obesity. Mice were fed a standard diet, a high fat diet, or these diets supplemented isocalorically with nervonic acid. The primary objective was to determine if dietary nervonic acid content alters the metabolic phenotype in mice fed a high fat diet. Furthermore, we investigated if nervonic acid alters markers of impaired fatty acid oxidation in the liver. We observed that a nervonic acid-enriched isocaloric diet reduced weight gain and adiposity in mice fed a high fat diet. The nervonic acid enrichment led to increased C24:1-ceramides and improved several metabolic parameters including blood glucose levels, and insulin and glucose tolerance. Mechanistically, nervonic acid supplementation increased PPARα and PGC1α expression and improved the acylcarnitine profile in liver. These alterations indicate improved energy metabolism through increased β-oxidation of fatty acids. Taken together, increasing dietary nervonic acid improves metabolic parameters in mice fed a high fat diet. Strategies that prevent deficiency of, or restore, nervonic acid may represent an effective strategy to treat obesity and obesity-related complications.
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Affiliation(s)
- Laura J W Keppley
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Susan J Walker
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Alexis N Gademsey
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Jason P Smith
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Susanna R Keller
- Medicine: Endocrinology and Metabolism, University of Virginia, Charlottesville, VA, USA
| | - Mark Kester
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA
| | - Todd E Fox
- Department of Pharmacology, University of Virginia, Charlottesville, VA, USA.,Department of Ophthalmology, University of Virginia, Charlottesville, VA, USA
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48
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Lair B, Laurens C, Van Den Bosch B, Moro C. Novel Insights and Mechanisms of Lipotoxicity-Driven Insulin Resistance. Int J Mol Sci 2020; 21:E6358. [PMID: 32887221 PMCID: PMC7504171 DOI: 10.3390/ijms21176358] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 02/07/2023] Open
Abstract
A large number of studies reported an association between elevated circulating and tissue lipid content and metabolic disorders in obesity, type 2 diabetes (T2D) and aging. This state of uncontrolled tissue lipid accumulation has been called lipotoxicity. It was later shown that excess lipid flux is mainly neutralized within lipid droplets as triglycerides, while several bioactive lipid species such as diacylglycerols (DAGs), ceramides and their derivatives have been mechanistically linked to the pathogenesis of insulin resistance (IR) by antagonizing insulin signaling and action in metabolic organs such as the liver and skeletal muscle. Skeletal muscle and the liver are the main sites of glucose disposal in the body and IR in these tissues plays a pivotal role in the development of T2D. In this review, we critically examine recent literature supporting a causal role of DAGs and ceramides in the development of IR. A particular emphasis is placed on transgenic mouse models with modulation of total DAG and ceramide pools, as well as on modulation of specific subspecies, in relation to insulin sensitivity. Collectively, although a wide number of studies converge towards the conclusion that both DAGs and ceramides cause IR in metabolic organs, there are still some uncertainties on their mechanisms of action. Recent studies reveal that subcellular localization and acyl chain composition are determinants in the biological activity of these lipotoxic lipids and should be further examined.
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Affiliation(s)
- Benjamin Lair
- INSERM, UMR1048, Institute of Metabolic and Cardiovascular Diseases, 31432 Toulouse, France; (B.L.); (C.L.); (B.V.D.B.)
- University of Toulouse, Paul Sabatier University, 31330 Toulouse, France
| | - Claire Laurens
- INSERM, UMR1048, Institute of Metabolic and Cardiovascular Diseases, 31432 Toulouse, France; (B.L.); (C.L.); (B.V.D.B.)
- University of Toulouse, Paul Sabatier University, 31330 Toulouse, France
| | - Bram Van Den Bosch
- INSERM, UMR1048, Institute of Metabolic and Cardiovascular Diseases, 31432 Toulouse, France; (B.L.); (C.L.); (B.V.D.B.)
- University of Toulouse, Paul Sabatier University, 31330 Toulouse, France
| | - Cedric Moro
- INSERM, UMR1048, Institute of Metabolic and Cardiovascular Diseases, 31432 Toulouse, France; (B.L.); (C.L.); (B.V.D.B.)
- University of Toulouse, Paul Sabatier University, 31330 Toulouse, France
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49
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Walls SM, Chatfield DA, Ocorr K, Harris GL, Bodmer R. Systemic and heart autonomous effects of sphingosine Δ4 desaturase deficiency in lipotoxic cardiac pathophysiology. Dis Model Mech 2020; 13:dmm.043083. [PMID: 32641420 PMCID: PMC7438009 DOI: 10.1242/dmm.043083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 06/26/2020] [Indexed: 12/21/2022] Open
Abstract
Lipotoxic cardiomyopathy (LCM) is characterized by cardiac steatosis, including the accumulation of fatty acids, triglycerides and ceramides. Model systems have shown the inhibition of ceramide biosynthesis to antagonize obesity and improve insulin sensitivity. Sphingosine Δ4 desaturase (encoded by ifc in Drosophila melanogaster) enzymatically converts dihydroceramide into ceramide. Here, we examine ifc mutants to study the effects of desaturase deficiency on cardiac function in Drosophila Interestingly, ifc mutants exhibited classic hallmarks of LCM: cardiac chamber dilation, contractile defects and loss of fractional shortening. This outcome was phenocopied in global ifc RNAi-mediated knockdown flies. Surprisingly, cardiac-specific ifc knockdown flies exhibited cardiac chamber restriction with no contractile defects, suggesting heart autonomous and systemic roles for ifc activity in cardiac function. Next, we demonstrated that ifc mutants exhibit suppressed Sphingosine kinase 1 (Sk1) expression. Ectopic overexpression of Sk1 was sufficient to prevent cardiac chamber dilation and loss of fractional shortening in ifc mutants. Partial rescue was also observed with cardiac- and fat-body-specific Sk1 overexpression. Finally, we showed that cardiac-specific expression of Drosophila inhibitor of apoptosis (dIAP) also prevented cardiac dysfunction in ifc mutants, suggesting a role for caspase activity in the observed cardiac pathology. Collectively, we show that spatial regulation of sphingosine Δ4 desaturase activity differentially affects cardiac function in heart autonomous and systemic mechanisms through tissue interplay.
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Affiliation(s)
- Stanley M Walls
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, CA 92037, USA .,Department of Cellular and Molecular Biology, San Diego State University, San Diego, CA 92182, USA
| | - Dale A Chatfield
- Department of Cellular and Molecular Biology, San Diego State University, San Diego, CA 92182, USA
| | - Karen Ocorr
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Greg L Harris
- Department of Cellular and Molecular Biology, San Diego State University, San Diego, CA 92182, USA
| | - Rolf Bodmer
- Development, Aging and Regeneration Program, Sanford-Burnham-Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
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Blackburn ML, Ono-Moore KD, Sobhi HF, Adams SH. Carnitine palmitoyltransferase 2 knockout potentiates palmitate-induced insulin resistance in C 2C 12 myotubes. Am J Physiol Endocrinol Metab 2020; 319:E265-E275. [PMID: 32459525 DOI: 10.1152/ajpendo.00515.2019] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Saturated fatty acids (SFAs) are implicated in muscle inflammation/cell stress and insulin resistance, but the catalog of factors involved is incomplete. SFA derivatives that accumulate with mismatched FA availability and FA oxidation (FAO) are likely involved, and evidence has emerged that select acylcarnitines should be considered. To understand if excessive long-chain acylcarnitine accumulation and limited FAO associate with lipotoxicity, carnitine palmitoyltransferase 2 knockout C2C12 cells were generated (CPT2 KO). CPT2 KO was confirmed by Western blot, increased palmitoylcarnitine accumulation, and loss of FAO capacity. There was no effect of CPT2 KO on palmitic acid (PA) concentration-dependent increases in media IL-6 or adenylate kinase. PA at 200 and 500 µM did not trigger cell stress responses (phospho-Erk, -JNK, or -p38) above that of vehicle in WT or CPT2 KO cells. In contrast, loss of CPT2 exacerbated PA-induced insulin resistance (acute phospho-Akt; 10 or 100 nM insulin) by as much as ~50-96% compared with WT. Growing cells in carnitine-free media abolished differences between WT and CPT2 KO, but this did not fully rescue PA-induced insulin resistance. The results suggest that PA-induced insulin resistance stems in part from palmitoylcarnitine accumulation, further supporting the hypothesis that select acylcarnitines participate in cell signaling and, when in excess, can compromise cell function. Since carnitine-free conditions could not fully rescue insulin signaling, and CPT2 KO did not alter cell stress responses, the majority of PA-induced "lipotoxicity" in C2C12 myotubes cannot be attributed to palmitoylcarnitine alone.
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Affiliation(s)
- Michael L Blackburn
- Arkansas Children's Nutrition Center, Little Rock, Arkansas
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | | | - Hany F Sobhi
- Center for Organic Synthesis, Department of Natural Sciences, Coppin State University, Baltimore, Maryland
| | - Sean H Adams
- Arkansas Children's Nutrition Center, Little Rock, Arkansas
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas
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