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Bonab MKF, Guo Z, Li Q. Glycosphingolipids: from metabolism to chemoenzymatic total synthesis. Org Biomol Chem 2024; 22:6665-6683. [PMID: 39120686 PMCID: PMC11341264 DOI: 10.1039/d4ob00695j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/10/2024]
Abstract
GSLs are the major glycolipids in vertebrates and mediate many key biological processes from intercellular recognition to cis regulation of signal transduction. The fast-expanding field of glycobiology has led to a growing demand for diverse and structurally defined GSLs, and enzymatic GSL synthesis is developing rapidly in accordance. This article provides an overview of natural GSL biosynthetic pathways and surveys the bacterial enzymes applied to GSL synthesis and recent progress in synthesis strategies. By correlating these three areas, this article aims to define the gaps between GSL biosynthesis and chemoenzymatic synthesis and evaluate the opportunities for harnessing natural forces to access GSLs efficiently.
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Affiliation(s)
- Mitra K F Bonab
- Department of Chemistry, University of Massachusetts Boston, Boston, Massachusetts 02125, USA.
| | - Zhongwu Guo
- Department of Chemistry, University of Florida, Gainesville, Florida 32611, USA.
| | - Qingjiang Li
- Department of Chemistry, University of Massachusetts Boston, Boston, Massachusetts 02125, USA.
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2
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Ramos-Molina B, Rossell J, Pérez-Montes de Oca A, Pardina E, Genua I, Rojo-López MI, Julián MT, Alonso N, Julve J, Mauricio D. Therapeutic implications for sphingolipid metabolism in metabolic dysfunction-associated steatohepatitis. Front Endocrinol (Lausanne) 2024; 15:1400961. [PMID: 38962680 PMCID: PMC11220194 DOI: 10.3389/fendo.2024.1400961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 06/03/2024] [Indexed: 07/05/2024] Open
Abstract
The prevalence of metabolic dysfunction-associated steatotic liver disease (MASLD), a leading cause of chronic liver disease, has increased worldwide along with the epidemics of obesity and related dysmetabolic conditions characterized by impaired glucose metabolism and insulin signaling, such as type 2 diabetes mellitus (T2D). MASLD can be defined as an excessive accumulation of lipid droplets in hepatocytes that occurs when the hepatic lipid metabolism is totally surpassed. This metabolic lipid inflexibility constitutes a central node in the pathogenesis of MASLD and is frequently linked to the overproduction of lipotoxic species, increased cellular stress, and mitochondrial dysfunction. A compelling body of evidence suggests that the accumulation of lipid species derived from sphingolipid metabolism, such as ceramides, contributes significantly to the structural and functional tissue damage observed in more severe grades of MASLD by triggering inflammatory and fibrogenic mechanisms. In this context, MASLD can further progress to metabolic dysfunction-associated steatohepatitis (MASH), which represents the advanced form of MASLD, and hepatic fibrosis. In this review, we discuss the role of sphingolipid species as drivers of MASH and the mechanisms involved in the disease. In addition, given the absence of approved therapies and the limited options for treating MASH, we discuss the feasibility of therapeutic strategies to protect against MASH and other severe manifestations by modulating sphingolipid metabolism.
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Affiliation(s)
- Bruno Ramos-Molina
- Group of Obesity, Diabetes & Metabolism, Instituto Murciano de Investigación Biosanitaria (IMIB), Murcia, Spain
| | - Joana Rossell
- Group of Endocrinology, Diabetes & Nutrition, Institut de Recerca SANT PAU, Barcelona, Spain
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
| | | | - Eva Pardina
- Department de Biochemistry & Molecular Biology, Facultat de Biologia, Universitat de Barcelona (UB), Barcelona, Spain
| | - Idoia Genua
- Department of Endocrinology & Nutrition, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Marina I. Rojo-López
- Group of Endocrinology, Diabetes & Nutrition, Institut de Recerca SANT PAU, Barcelona, Spain
| | - María Teresa Julián
- Department of Endocrinology & Nutrition, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Núria Alonso
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
- Department of Endocrinology & Nutrition, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Josep Julve
- Group of Endocrinology, Diabetes & Nutrition, Institut de Recerca SANT PAU, Barcelona, Spain
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
| | - Didac Mauricio
- Group of Endocrinology, Diabetes & Nutrition, Institut de Recerca SANT PAU, Barcelona, Spain
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
- Department of Endocrinology & Nutrition, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
- Department of Endocrinology & Nutrition, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
- Faculty of Medicine, University of Vic/Central University of Catalonia (UVIC/UCC), Vic, Spain
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3
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Chen YF, Fan ZK, Wang YP, Liu P, Guo XF, Li D. Docosahexaenoic Acid Modulates Nonalcoholic Fatty Liver Disease by Suppressing Endocannabinoid System. Mol Nutr Food Res 2024; 68:e2300616. [PMID: 38430210 DOI: 10.1002/mnfr.202300616] [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: 08/30/2023] [Revised: 11/29/2023] [Indexed: 03/03/2024]
Abstract
SCOPE Endocannabinoid signaling regulates energy homeostasis, and is tightly associated with nonalcoholic fatty liver disease (NAFLD). The study previously finds that supplementation of docosahexaenoic acid (DHA) has superior function to ameliorate NAFLD compared with eicosapentaenoic acid (EPA), however, the underlying mechanism remains elusive. The present study aims to investigate whether DHA intervention alleviates NAFLD via endocannabinoid system. METHODS AND RESULTS In a case-control study, the serum endocannabinoid ligands in 60 NAFLD and 60 healthy subjects are measured. Meanwhile, NAFLD model is established in mice fed a high-fat and -cholesterol diet (HFD) for 9 weeks. DHA or EPA is administrated for additional 9 weeks. Serum primary endocannabinoid ligands, namely anandamide (AEA) and 2-arachidoniylglycerol (2-AG), are significantly higher in individuals with NAFLD compared with healthy controls. NAFLD model shows that serum 2-AG concentrations and adipocyte cannabinoid receptor 1 expression levels are significantly lower in DHA group compared with HFD group. Lipidomic and targeted ceramide analyses further confirm that endocannabinoid signaling inhibition has exerted deletion of hepatic C16:0-ceramide contents, resulting in down-regulation of de novo fatty acid synthesis and up-regulation of fatty acid β-oxidation related protein expression levels. CONCLUSIONS This work elucidates that DHA has improved NAFLD by suppressing endocannabinoid system.
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Affiliation(s)
- Yan-Fang Chen
- Institute of Nutrition & Health, Qingdao University, Qingdao, 266071, China
- School of Public Health, Qingdao University, Qingdao, 266071, China
| | - Ze-Kai Fan
- Institute of Nutrition & Health, Qingdao University, Qingdao, 266071, China
- School of Public Health, Qingdao University, Qingdao, 266071, China
| | - Yin-Peng Wang
- Institute of Nutrition & Health, Qingdao University, Qingdao, 266071, China
- School of Public Health, Qingdao University, Qingdao, 266071, China
| | - Peng Liu
- Institute of Nutrition & Health, Qingdao University, Qingdao, 266071, China
- School of Public Health, Qingdao University, Qingdao, 266071, China
| | - Xiao-Fei Guo
- Institute of Nutrition & Health, Qingdao University, Qingdao, 266071, China
- School of Public Health, Qingdao University, Qingdao, 266071, China
| | - Duo Li
- Institute of Nutrition & Health, Qingdao University, Qingdao, 266071, China
- Qingdao University Function Center of Medical Nutrition, Qingdao, 266071, China
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Al-Rashed F, Arefanian H, Madhoun AA, Bahman F, Sindhu S, AlSaeed H, Jacob T, Thomas R, Al-Roub A, Alzaid F, Malik MDZ, Nizam R, Thanaraj TA, Al-Mulla F, Hannun YA, Ahmad R. Neutral Sphingomyelinase 2 Inhibition Limits Hepatic Steatosis and Inflammation. Cells 2024; 13:463. [PMID: 38474427 PMCID: PMC10931069 DOI: 10.3390/cells13050463] [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: 01/24/2024] [Revised: 02/29/2024] [Accepted: 03/03/2024] [Indexed: 03/14/2024] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is manifested by hepatic steatosis, insulin resistance, hepatocyte death, and systemic inflammation. Obesity induces steatosis and chronic inflammation in the liver. However, the precise mechanism underlying hepatic steatosis in the setting of obesity remains unclear. Here, we report studies that address this question. After 14 weeks on a high-fat diet (HFD) with high sucrose, C57BL/6 mice revealed a phenotype of liver steatosis. Transcriptional profiling analysis of the liver tissues was performed using RNA sequencing (RNA-seq). Our RNA-seq data revealed 692 differentially expressed genes involved in processes of lipid metabolism, oxidative stress, immune responses, and cell proliferation. Notably, the gene encoding neutral sphingomyelinase, SMPD3, was predominantly upregulated in the liver tissues of the mice displaying a phenotype of steatosis. Moreover, nSMase2 activity was elevated in these tissues of the liver. Pharmacological and genetic inhibition of nSMase2 prevented intracellular lipid accumulation and TNFα-induced inflammation in in-vitro HepG2-steatosis cellular model. Furthermore, nSMase2 inhibition ameliorates oxidative damage by rescuing PPARα and preventing cell death associated with high glucose/oleic acid-induced fat accumulation in HepG2 cells. Collectively, our findings highlight the prominent role of nSMase2 in hepatic steatosis, which could serve as a potential therapeutic target for NAFLD and other hepatic steatosis-linked disorders.
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Affiliation(s)
- Fatema Al-Rashed
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (H.A.); (F.B.); (H.A.); (T.J.); (R.T.); (A.A.-R.)
| | - Hossein Arefanian
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (H.A.); (F.B.); (H.A.); (T.J.); (R.T.); (A.A.-R.)
| | - Ashraf Al Madhoun
- Animal and Imaging Core Facilities, Dasman Diabetes Institute, Dasman 15462, Kuwait; (A.A.M.); (S.S.)
| | - Fatemah Bahman
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (H.A.); (F.B.); (H.A.); (T.J.); (R.T.); (A.A.-R.)
| | - Sardar Sindhu
- Animal and Imaging Core Facilities, Dasman Diabetes Institute, Dasman 15462, Kuwait; (A.A.M.); (S.S.)
| | - Halemah AlSaeed
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (H.A.); (F.B.); (H.A.); (T.J.); (R.T.); (A.A.-R.)
| | - Texy Jacob
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (H.A.); (F.B.); (H.A.); (T.J.); (R.T.); (A.A.-R.)
| | - Reeby Thomas
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (H.A.); (F.B.); (H.A.); (T.J.); (R.T.); (A.A.-R.)
| | - Areej Al-Roub
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (H.A.); (F.B.); (H.A.); (T.J.); (R.T.); (A.A.-R.)
| | - Fawaz Alzaid
- Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, F-75015 Paris, France;
| | - MD Zubbair Malik
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (M.Z.M.); (R.N.); (T.A.T.); (F.A.-M.)
| | - Rasheeba Nizam
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (M.Z.M.); (R.N.); (T.A.T.); (F.A.-M.)
| | - Thangavel Alphonse Thanaraj
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (M.Z.M.); (R.N.); (T.A.T.); (F.A.-M.)
| | - Fahd Al-Mulla
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (M.Z.M.); (R.N.); (T.A.T.); (F.A.-M.)
| | - Yusuf A. Hannun
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY 11794, USA;
| | - Rasheed Ahmad
- Immunology & Microbiology Department, Dasman Diabetes Institute, Dasman 15462, Kuwait; (H.A.); (F.B.); (H.A.); (T.J.); (R.T.); (A.A.-R.)
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Zhao Y, Zhao H, Li L, Yu S, Liu M, Jiang L. Ceramide on the road to insulin resistance and immunometabolic disorders in transition dairy cows: driver or passenger? Front Immunol 2024; 14:1321597. [PMID: 38274826 PMCID: PMC10808295 DOI: 10.3389/fimmu.2023.1321597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 12/26/2023] [Indexed: 01/27/2024] Open
Abstract
Dairy cows must undergo profound metabolic and endocrine adaptations during their transition period to meet the nutrient requirements of the developing fetus, parturition, and the onset of lactation. Insulin resistance in extrahepatic tissues is a critical component of homeorhetic adaptations in periparturient dairy cows. However, due to increased energy demands at calving that are not followed by a concomitant increase in dry matter intake, body stores are mobilized, and the risk of metabolic disorders dramatically increases. Sphingolipid ceramides involved in multiple vital biological processes, such as proliferation, differentiation, apoptosis, and inflammation. Three typical pathways generate ceramide, and many factors contribute to its production as part of the cell's stress response. Based on lipidomic profiling, there has generally been an association between increased ceramide content and various disease outcomes in rodents. Emerging evidence shows that ceramides might play crucial roles in the adaptive metabolic alterations accompanying the initiation of lactation in dairy cows. A series of studies also revealed a negative association between circulating ceramides and systemic insulin sensitivity in dairy cows experiencing severe negative energy balance. Whether ceramide acts as a driver or passenger in the metabolic stress of periparturient dairy cows is an unknown but exciting topic. In the present review, we discuss the potential roles of ceramides in various metabolic dysfunctions and the impacts of their perturbations. We also discuss how this novel class of bioactive sphingolipids has drawn interest in extrahepatic tissue insulin resistance and immunometabolic disorders in transition dairy cows. We also discuss the possible use of ceramide as a new biomarker for predicting metabolic diseases in cows and highlight the remaining problems.
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Affiliation(s)
| | | | | | | | | | - Linshu Jiang
- Beijing Key Laboratory of Dairy Cow Nutrition, College of Animal Science and Technology, Beijing University of Agriculture, Beijing, China
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Zheng Z, Tian M, Liao G, Chen G, Zhong Y, Yang Y, Wang G. Evaluation of the effects of compound curing agents on the lipid profiles and volatile flavors in Nuodeng ham based on lipidomics and GC-IMS analysis. Food Res Int 2024; 176:113810. [PMID: 38163715 DOI: 10.1016/j.foodres.2023.113810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 11/28/2023] [Accepted: 12/02/2023] [Indexed: 01/03/2024]
Abstract
Eighteen raw legs were evenly divided into two groups and salted with 100% NaCl and compound curing agent (60% NaCl + 40% KCl + 90 mg/kg NaNO2) to investigate the effect of compound curing agent on lipid metabolites and volatile flavor compounds in Nuodeng ham. The results of UHPLC-QE-MS and GC-IMS combined with multivariate statistical analysis showed that 27 lipid metabolites and 30 characteristic volatile flavor compounds were identified as characteristic markers in different treatment groups. The compound curing agent promoted the release of TG, SQDG, Hex1Cer, and LPC in Nuodeng ham, and accelerated the formation of volatile compounds such as 2-propanone, nonanal-d, gamma-butyrolactone, ethhyl acetate and benzeneacetaldehyde et al. Through correlation analysis, ketones were positively correlated with some PUFAs and negatively correlated with most MUFAs. Processing Nuodeng ham with compound curing agents has a positive effect on improving its quality. These findings provide a scientific theoretical basis for the development and utilization of compound curing agent.
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Affiliation(s)
- Zhijie Zheng
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China; Livestock Product Processing and Engineering Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China
| | - Mei Tian
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China; Livestock Product Processing and Engineering Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China
| | - Guozhou Liao
- Livestock Product Processing and Engineering Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China.
| | - Guanghui Chen
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China; Livestock Product Processing and Engineering Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China
| | - Yanru Zhong
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China; Livestock Product Processing and Engineering Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China
| | - Yuan Yang
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China; Livestock Product Processing and Engineering Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China
| | - Guiying Wang
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China; Livestock Product Processing and Engineering Technology Research Center of Yunnan Province, Yunnan Agricultural University, Kunming 650201, China.
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Chen YF, Fan ZK, Gao X, Zhou F, Guo XF, Sinclair AJ, Li D. n-3 polyunsaturated fatty acids in phospholipid or triacylglycerol form attenuate nonalcoholic fatty liver disease via mediating cannabinoid receptor 1/adiponectin/ceramide pathway. J Nutr Biochem 2024; 123:109484. [PMID: 37866428 DOI: 10.1016/j.jnutbio.2023.109484] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 10/11/2023] [Accepted: 10/11/2023] [Indexed: 10/24/2023]
Abstract
n-3 polyunsaturated fatty acids (PUFA) have shown to exert beneficial effects in the treatment of nonalcoholic fatty liver disease (NAFLD). Supplements of n-3 PUFA occur in either phospholipid or triacylglycerol form. The present study aimed to compare whether the different n-3 PUFA of marine-origin, namely krill oil, DHA/EPA-phospholipid (PL), and EPA/DHA-triacylglycerol (TAG) forms had differential abilities to ameliorate NAFLD. The NAFLD model was established in mice fed a high-fat and high-cholesterol diet (HFD). The mice showed evidence of weight gain, dyslipidemia, insulin resistance and hepatic steatosis after 9 weeks of HFD, while the three forms of the n-3 PUFA reduced hepatic TAG accumulation, fatty liver and improved insulin instance, and hepatic biomarkers after 9 weeks of intervention. Of these, krill oil intervention significantly reduced adipocyte hypertrophy and hepatic steatosis in comparison with DHA/EPA-PL and EPA/DHA-TAG groups. Importantly, only krill oil intervention significantly reduced serum alanine transaminase, aspartate transaminase concentrations and low-density lipoprotein-cholesterol, compared with the HFD group. Supplemental n-3 PUFA lowered circulating anandamide (AEA) and 2-arachidonoylglycerol (2-AG) concentrations, compared with the HFD group, which was associated with down-regulating CB1 and upregulating adiponectin expressions in adipose tissue. Besides, targeted lipidomic analyses indicated that the increased adiponectin levels were accompanied by reductions in hepatic ceramide levels. The reduced ceramide levels were associated with inhibiting lipid synthesis and increasing fatty acid β-oxidation, finally inhibiting TAG accumulation in the liver. Through mediating CB1/adiponectin/ceramide pathway, the present study suggested that administration of krill oil had superior health effects in the therapy of NAFLD in comparison with DHA/EPA-PL and EPA/DHA-TAG.
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Affiliation(s)
- Yan-Fang Chen
- Institute of Nutrition & Health, Qingdao University, Qingdao, China; School of Public Health, Qingdao University, Qingdao, China
| | - Ze-Kai Fan
- Institute of Nutrition & Health, Qingdao University, Qingdao, China; School of Public Health, Qingdao University, Qingdao, China
| | - Xiang Gao
- College of Life Sciences, Qingdao University, Qingdao, China
| | - Fang Zhou
- Qingdao University Function Center of Medical Nutrition, Qingdao, China
| | - Xiao-Fei Guo
- Institute of Nutrition & Health, Qingdao University, Qingdao, China; School of Public Health, Qingdao University, Qingdao, China.
| | - Andrew J Sinclair
- Department of Nutrition, Dietetics and Food, Monash University, Melbourne, Australia
| | - Duo Li
- Institute of Nutrition & Health, Qingdao University, Qingdao, China; Qingdao University Function Center of Medical Nutrition, Qingdao, China
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Cipryan L, Kosek V, García CJ, Dostal T, Bechynska K, Hajslova J, Hofmann P. A lipidomic and metabolomic signature of a very low-carbohydrate high-fat diet and high-intensity interval training: an additional analysis of a randomized controlled clinical trial. Metabolomics 2023; 20:10. [PMID: 38141101 DOI: 10.1007/s11306-023-02071-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023]
Abstract
INTRODUCTION Regular physical activity and dietary variety are modifiable and influential factors of health outcomes. However, the cumulative effects of these behaviors are not well understood. Metabolomics may have a promising research potential to extend our knowledge and use it in the attempts to find a long-term and sustainable personalized approach in exercise and diet recommendations. OBJECTIVE The main aim was to investigate the effect of the 12 week very low carbohydrate high fat (VLCHF) diet and high-intensity interval training (HIIT) on lipidomic and metabolomic profiles in individuals with overweight and obesity. METHODS The participants (N = 91) were randomly allocated to HIIT (N = 22), VLCHF (N = 25), VLCHF + HIIT (N = 25) or control (N = 19) groups for 12 weeks. Fasting plasma samples were collected before the intervention and after 4, 8 and 12 weeks. The samples were then subjected to untargeted lipidomic and metabolomic analyses using reversed phase ultra-high-performance liquid chromatography coupled to high-resolution mass spectrometry. RESULTS The VLCHF diet affected plasma lipids considerably while the effect of HIIT was unremarkable. Already after 4 weeks of intervention substantial changes of plasma lipids were found in both VLCHF diet groups. The changes persisted throughout the entire 12 weeks of the VLCHF diet. Specifically, acyl carnitines, plasmalogens, fatty acyl esters of hydroxy fatty acid, sphingomyelin, ceramides, cholesterol esters, fatty acids and 4-hydroxybutyric were identified as lipid families that increased in the VLCHF diet groups whereas lipid families of triglycerides and glycerophospholipids decreased. Additionally, metabolomic analysis showed a decrease of theobromine. CONCLUSIONS This study deciphers the specific responses to a VLCHF diet, HIIT and their combination by analysing untargeted lipidomic and metabolomic profile. VLCHF diet caused divergent changes of plasma lipids and other metabolites when compared to the exercise and control group which may contribute to a better understanding of metabolic changes and the appraisal of VLCHF diet benefits and harms. CLINICAL TRIAL REGISTRY NUMBER NCT03934476, registered 1st May 2019 https://clinicaltrials.gov/ct2/show/NCT03934476?term=NCT03934476&draw=2&rank=1 .
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Affiliation(s)
- Lukas Cipryan
- Department of Human Movement Studies and Human Motion Diagnostic Centre, The University of Ostrava, Ostrava, Czech Republic
| | - Vit Kosek
- Department of Food Analysis and Nutrition, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, 16628, Prague, Czech Republic.
| | - Carlos J García
- Department of Food Analysis and Nutrition, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, 16628, Prague, Czech Republic
| | - Tomas Dostal
- Department of Human Movement Studies and Human Motion Diagnostic Centre, The University of Ostrava, Ostrava, Czech Republic
| | - Kamila Bechynska
- Department of Food Analysis and Nutrition, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, 16628, Prague, Czech Republic
| | - Jana Hajslova
- Department of Food Analysis and Nutrition, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, 16628, Prague, Czech Republic
| | - Peter Hofmann
- Institute of Human Movement Science, Sport and Health, Exercise Physiology, Training and Training Therapy Research Group, University of Graz, Graz, Austria
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Revelo X, Fredrickson G, Florczak K, Barrow F, Dietsche K, Wang H, Parthiban P, Almutlaq R, Adeyi O, Herman A, Bartolomucci A, Staley C, Jahansouz C, Williams J, Mashek D, Ikramuddin S. Hepatic lipid-associated macrophages mediate the beneficial effects of bariatric surgery against MASH. RESEARCH SQUARE 2023:rs.3.rs-3446960. [PMID: 37961666 PMCID: PMC10635378 DOI: 10.21203/rs.3.rs-3446960/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
For patients with obesity and metabolic syndrome, bariatric procedures such as vertical sleeve gastrectomy (VSG) have a clear benefit in ameliorating metabolic dysfunction-associated steatohepatitis (MASH). While the effects of bariatric surgeries have been mainly attributed to nutrient restriction and malabsorption, whether immuno-modulatory mechanisms are involved remains unclear. Here we report that VSG ameliorates MASH progression in a weight loss-independent manner. Single-cell RNA sequencing revealed that hepatic lipid-associated macrophages (LAMs) expressing the triggering receptor expressed on myeloid cells 2 (TREM2) increase their lysosomal activity and repress inflammation in response to VSG. Remarkably, TREM2 deficiency in mice ablates the reparative effects of VSG, suggesting that TREM2 is required for MASH resolution. Mechanistically, TREM2 prevents the inflammatory activation of macrophages and is required for their efferocytotic function. Overall, our findings indicate that bariatric surgery improves MASH through a reparative process driven by hepatic LAMs, providing insights into the mechanisms of disease reversal that may result in new therapies and improved surgical interventions.
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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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11
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Xiao N, Zhang T, Han M, Tian D, Liu J, Li S, Yang L, Pan G. Chlorogenic Acid Inhibits Ceramide Accumulation to Restrain Hepatic Glucagon Response. Nutrients 2023; 15:3173. [PMID: 37513589 PMCID: PMC10384019 DOI: 10.3390/nu15143173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/05/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
Chlorogenic acid (CGA), a dietary natural phenolic acid, has been widely reported to regulate glucose and lipid metabolism. However, the protective effects and the underlying mechanisms of CGA on glucagon-induced hepatic glucose production remain largely uncharacterized. Herein, we investigated the efficacy of CGA on hepatic gluconeogenesis both in vivo and in vitro. The elevated levels of endogenous glucose production induced by infusion of glucagon or pyruvate were lowered in mice administered with CGA. Furthermore, chronic CGA treatment ameliorated the accumulation of glucose and ceramide in high-fat diet (HFD)-fed mice. CGA also attenuated HFD-fed-induced inflammation response. The protective effect of CGA on glucose production was further confirmed in primary mouse hepatocytes by inhibiting accumulation of ceramide and expression of p38 MAPK. Moreover, CGA administration in HFD-fed mice preserved the decreased phosphorylation of Akt in the liver, resulting in the inhibition of FoxO1 activation and, ultimately, hepatic gluconeogenesis. However, these protective effects were significantly attenuated by the addition of C2 ceramide. These results suggest that CGA inhibits ceramide accumulation to restrain hepatic glucagon response.
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Affiliation(s)
- Na Xiao
- College of Agronomy, Shandong Agriculture University, Tai'an 271018, China
| | - Tengfei Zhang
- College of Agronomy, Shandong Agriculture University, Tai'an 271018, China
| | - Mingli Han
- College of Agronomy, Shandong Agriculture University, Tai'an 271018, China
| | - Dan Tian
- College of Agronomy, Shandong Agriculture University, Tai'an 271018, China
| | - Jiawei Liu
- College of Agronomy, Shandong Agriculture University, Tai'an 271018, China
| | - Shan Li
- College of Agronomy, Shandong Agriculture University, Tai'an 271018, China
| | - Lele Yang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Guojun Pan
- College of Life Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an 271000, China
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Gautam J, Kumari D, Aggarwal H, Gupta SK, Kasarla SS, Sarkar S, Priya MRK, Kamboj P, Kumar Y, Dikshit M. Characterization of lipid signatures in the plasma and insulin-sensitive tissues of the C57BL/6J mice fed on obesogenic diets. Biochim Biophys Acta Mol Cell Biol Lipids 2023:159348. [PMID: 37285928 DOI: 10.1016/j.bbalip.2023.159348] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 05/23/2023] [Accepted: 05/29/2023] [Indexed: 06/09/2023]
Abstract
Diet-induced obesity mouse models are widely utilized to investigate the underlying mechanisms of dyslipidemia, glucose intolerance, insulin resistance, hepatic steatosis, and type 2 diabetes mellitus (T2DM), as well as for screening potential drug compounds. However, there is limited knowledge regarding specific signature lipids that accurately reflect dietary disorders. In this study, we aimed to identify key lipid signatures using LC/MS-based untargeted lipidomics in the plasma, liver, adipose tissue (AT), and skeletal muscle tissues (SKM) of male C57BL/6J mice that were fed chow, LFD, or obesogenic diets (HFD, HFHF, and HFCD) for a duration of 20 weeks. Furthermore, we conducted a comprehensive lipid analysis to assess similarities and differences with human lipid profiles. The mice fed obesogenic diets exhibited weight gain, glucose intolerance, elevated BMI, glucose and insulin levels, and a fatty liver, resembling characteristics of T2DM and obesity in humans. In total, we identified approximately 368 lipids in plasma, 433 in the liver, 493 in AT, and 624 in SKM. Glycerolipids displayed distinct patterns across the tissues, differing from human findings. However, changes in sphingolipids, phospholipids, and the expression of inflammatory and fibrotic genes showed similarities to reported human findings. Significantly modulated pathways in the obesogenic diet-fed groups included ceramide de novo synthesis, sphingolipid remodeling, and the carboxylesterase pathway, while lipoprotein-mediated pathways were minimally affected.
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Affiliation(s)
- Jyoti Gautam
- Non-communicable Disease Centre, Translational Health Science and Technology Institute (THSTI), NCR Biotech Science Cluster, 3rd Milestone, Faridabad 121001, Haryana, India
| | - Deepika Kumari
- Non-communicable Disease Centre, Translational Health Science and Technology Institute (THSTI), NCR Biotech Science Cluster, 3rd Milestone, Faridabad 121001, Haryana, India
| | - Hobby Aggarwal
- Non-communicable Disease Centre, Translational Health Science and Technology Institute (THSTI), NCR Biotech Science Cluster, 3rd Milestone, Faridabad 121001, Haryana, India
| | - Sonu Kumar Gupta
- Non-communicable Disease Centre, Translational Health Science and Technology Institute (THSTI), NCR Biotech Science Cluster, 3rd Milestone, Faridabad 121001, Haryana, India
| | - Siva Swapna Kasarla
- Non-communicable Disease Centre, Translational Health Science and Technology Institute (THSTI), NCR Biotech Science Cluster, 3rd Milestone, Faridabad 121001, Haryana, India
| | - Soumalya Sarkar
- Non-communicable Disease Centre, Translational Health Science and Technology Institute (THSTI), NCR Biotech Science Cluster, 3rd Milestone, Faridabad 121001, Haryana, India
| | - M R Kamla Priya
- Non-communicable Disease Centre, Translational Health Science and Technology Institute (THSTI), NCR Biotech Science Cluster, 3rd Milestone, Faridabad 121001, Haryana, India
| | - Parul Kamboj
- Non-communicable Disease Centre, Translational Health Science and Technology Institute (THSTI), NCR Biotech Science Cluster, 3rd Milestone, Faridabad 121001, Haryana, India
| | - Yashwant Kumar
- Non-communicable Disease Centre, Translational Health Science and Technology Institute (THSTI), NCR Biotech Science Cluster, 3rd Milestone, Faridabad 121001, Haryana, India.
| | - Madhu Dikshit
- Non-communicable Disease Centre, Translational Health Science and Technology Institute (THSTI), NCR Biotech Science Cluster, 3rd Milestone, Faridabad 121001, Haryana, India.
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Yuan H, Zhu B, Li C, Zhao Z. Ceramide in cerebrovascular diseases. Front Cell Neurosci 2023; 17:1191609. [PMID: 37333888 PMCID: PMC10272456 DOI: 10.3389/fncel.2023.1191609] [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: 03/22/2023] [Accepted: 05/18/2023] [Indexed: 06/20/2023] Open
Abstract
Ceramide, a bioactive sphingolipid, serves as an important second messenger in cell signal transduction. Under stressful conditions, it can be generated from de novo synthesis, sphingomyelin hydrolysis, and/or the salvage pathway. The brain is rich in lipids, and abnormal lipid levels are associated with a variety of brain disorders. Cerebrovascular diseases, which are mainly caused by abnormal cerebral blood flow and secondary neurological injury, are the leading causes of death and disability worldwide. There is a growing body of evidence for a close connection between elevated ceramide levels and cerebrovascular diseases, especially stroke and cerebral small vessel disease (CSVD). The increased ceramide has broad effects on different types of brain cells, including endothelial cells, microglia, and neurons. Therefore, strategies that reduce ceramide synthesis, such as modifying sphingomyelinase activity or the rate-limiting enzyme of the de novo synthesis pathway, serine palmitoyltransferase, may represent novel and promising therapeutic approaches to prevent or treat cerebrovascular injury-related diseases.
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Oliviero B, Dei Cas M, Zulueta A, Maiello R, Villa A, Martinelli C, Del Favero E, Falleni M, Montavoci L, Varchetta S, Mele D, Donadon M, Soldani C, Franceschini B, Maestri M, Piccolo G, Barabino M, Bianchi PP, Banales JM, Mantovani S, Mondelli MU, Caretti A. Ceramide present in cholangiocarcinoma-derived extracellular vesicle induces a pro-inflammatory state in monocytes. Sci Rep 2023; 13:7766. [PMID: 37173330 PMCID: PMC10182100 DOI: 10.1038/s41598-023-34676-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
Cholangiocarcinoma (CCA) is a rare cancer characterized by a global increasing incidence. Extracellular vesicles (EV) contribute to many of the hallmarks of cancer through transfer of their cargo molecules. The sphingolipid (SPL) profile of intrahepatic CCA (iCCA)-derived EVs was characterized by liquid chromatography-tandem mass spectrometry analysis. The effect of iCCA-derived EVs as mediators of inflammation was assessed on monocytes by flow cytometry. iCCA-derived EVs showed downregulation of all SPL species. Of note, poorly-differentiated iCCA-derived EVs showed a higher ceramide and dihydroceramide content compared with moderately-differentiated iCCA-derived EVs. Of note, higher dihydroceramide content was associated with vascular invasion. Cancer-derived EVs induced the release of pro-inflammatory cytokines in monocytes. Inhibition of synthesis of ceramide with Myriocin, a specific inhibitor of the serine palmitoyl transferase, reduced the pro-inflammatory activity of iCCA-derived EVs, demonstrating a role for ceramide as mediator of inflammation in iCCA. In conclusion, iCCA-derived EVs may promote iCCA progression by exporting the excess of pro-apoptotic and pro-inflammatory ceramides.
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Affiliation(s)
- Barbara Oliviero
- Division of Clinical Immunology - Infectious Diseases, Department of Research, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Michele Dei Cas
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Aida Zulueta
- Neurorehabilitation Unit of Milan Institute, Istituti Clinici Scientifici Maugeri IRCCS, Milan, Italy
| | - Roberta Maiello
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Alessandro Villa
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Carla Martinelli
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Elena Del Favero
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Monica Falleni
- Pathology Division, Health Sciences Department, University of Milan, Milan, Italy
| | - Linda Montavoci
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Stefania Varchetta
- Division of Clinical Immunology - Infectious Diseases, Department of Research, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Dalila Mele
- Division of Clinical Immunology - Infectious Diseases, Department of Research, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Matteo Donadon
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
- Department of Hepatobiliary and General Surgery, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Cristiana Soldani
- Laboratory of Hepatobiliary Immunopathology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Barbara Franceschini
- Laboratory of Hepatobiliary Immunopathology, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Marcello Maestri
- Division of General Surgery 1, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Gaetano Piccolo
- General Surgery Unit, Department of Health Sciences, San Paolo Hospital, University of Milan, Milan, Italy
| | - Matteo Barabino
- General Surgery Unit, Department of Health Sciences, San Paolo Hospital, University of Milan, Milan, Italy
| | - Paolo Pietro Bianchi
- General Surgery Unit, Department of Health Sciences, San Paolo Hospital, University of Milan, Milan, Italy
| | - Jesus M Banales
- Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute-Donostia University Hospital, University of the Basque Country (UPV/EHU), San Sebastian, Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd, "Instituto de Salud Carlos III"), San Sebastian-Donostia, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
- Department of Biochemistry and Genetics, School of Sciences, University of Navarra, Pamplona, Spain
| | - Stefania Mantovani
- Division of Clinical Immunology - Infectious Diseases, Department of Research, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
- SC Immunologia clinica - Malattie infettive, Fondazione IRCCS Policlinico San Matteo, Viale Golgi 19, 27100, Pavia, Italy.
| | - Mario U Mondelli
- Division of Clinical Immunology - Infectious Diseases, Department of Research, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
- SC Immunologia clinica - Malattie infettive, Fondazione IRCCS Policlinico San Matteo, Viale Golgi 19, 27100, Pavia, Italy.
- Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy.
| | - Anna Caretti
- Department of Health Sciences, University of Milan, Milan, Italy
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15
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Lu Z, Li Y, Chowdhury N, Yu H, Syn WK, Lopes-Virella M, Yilmaz Ö, Huang Y. The Presence of Periodontitis Exacerbates Non-Alcoholic Fatty Liver Disease via Sphingolipid Metabolism-Associated Insulin Resistance and Hepatic Inflammation in Mice with Metabolic Syndrome. Int J Mol Sci 2023; 24:8322. [PMID: 37176029 PMCID: PMC10179436 DOI: 10.3390/ijms24098322] [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: 04/03/2023] [Revised: 04/27/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
Clinical studies have shown that periodontitis is associated with non-alcoholic fatty liver disease (NAFLD). However, it remains unclear if periodontitis contributes to the progression of NAFLD. In this study, we generated a mouse model with high-fat diet (HFD)-induced metabolic syndrome (MetS) and NAFLD and oral P. gingivalis inoculation-induced periodontitis. Results showed that the presence of periodontitis increased insulin resistance and hepatic inflammation and exacerbated the progression of NAFLD. To determine the role of sphingolipid metabolism in the association between NAFLD and periodontitis, we also treated mice with imipramine, an inhibitor of acid sphingomyelinase (ASMase), and demonstrated that imipramine treatment significantly alleviated insulin resistance and hepatic inflammation, and improved NAFLD. Studies performed in vitro showed that lipopolysaccharide (LPS) and palmitic acid (PA), a major saturated fatty acid associated with MetS and NAFLD, synergistically increased the production of ceramide, a bioactive sphingolipid involved in NAFLD progression in macrophages but imipramine effectively reversed the ceramide production stimulated by LPS and PA. Taken together, this study showed for the first time that the presence of periodontitis contributed to the progression of NAFLD, likely due to alterations in sphingolipid metabolism that led to exacerbated insulin resistance and hepatic inflammation. This study also showed that targeting ASMase with imipramine improves NAFLD by reducing insulin resistance and hepatic inflammation.
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Affiliation(s)
- Zhongyang Lu
- Division of Endocrinology, Diabetes and Metabolic Diseases, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Yanchun Li
- Division of Endocrinology, Diabetes and Metabolic Diseases, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Nityananda Chowdhury
- Department of Oral Health Sciences, The James B. Edwards College of Dental Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Hong Yu
- Department of Oral Health Sciences, The James B. Edwards College of Dental Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Wing-Kin Syn
- Division of Gastroenterology and Hepatology, Saint Louis University School of Medicine, Saint Louis, MI 63110, USA
- Division of Gastroenterology and Hepatology, Medical University of South Carolina, Charleston, SC 29425, USA
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country, Universidad del Pa S Vasco/Euskal Herriko Univertsitatea (UPV/EHU), 48940 Leioa, Spain
| | - Maria Lopes-Virella
- Division of Endocrinology, Diabetes and Metabolic Diseases, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
- Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC 29401, USA
| | - Özlem Yilmaz
- Department of Oral Health Sciences, The James B. Edwards College of Dental Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Yan Huang
- Division of Endocrinology, Diabetes and Metabolic Diseases, Department of Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
- Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC 29401, USA
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Sinha RA. Autophagy: A Cellular Guardian against Hepatic Lipotoxicity. Genes (Basel) 2023; 14:553. [PMID: 36874473 PMCID: PMC7614268 DOI: 10.3390/genes14030553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Lipotoxicity is a phenomenon of lipid-induced cellular injury in nonadipose tissue. Excess of free saturated fatty acids (SFAs) contributes to hepatic injury in nonalcoholic fatty liver disease (NAFLD), which has been growing at an unprecedented rate in recent years. SFAs and their derivatives such as ceramides and membrane phospholipids have been shown to induce intrahepatic oxidative damage and ER stress. Autophagy represents a cellular housekeeping mechanism to counter the perturbation in organelle function and activation of stress signals within the cell. Several aspects of autophagy, including lipid droplet assembly, lipophagy, mitophagy, redox signaling and ER-phagy, play a critical role in mounting a strong defense against lipotoxic lipid species within the hepatic cells. This review provides a succinct overview of our current understanding of autophagy-lipotoxicity interaction and its pharmacological and nonpharmacological modulation in treating NAFLD.
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Affiliation(s)
- Rohit Anthony Sinha
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
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17
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Ramadan NM, Elmasry K, Elsayed HRH, El-Mesery A, Eraky SM. The hepatoprotective effects of n3-polyunsaturated fatty acids against non-alcoholic fatty liver disease in diabetic rats through the FOXO1/PPARα/GABARAPL1 signalling pathway. Life Sci 2022; 311:121145. [DOI: 10.1016/j.lfs.2022.121145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/26/2022] [Accepted: 10/29/2022] [Indexed: 11/06/2022]
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Lee CG, Lee SJ, Park S, Choi SE, Song MW, Lee HW, Kim HJ, Kang Y, Lee KW, Kim HM, Kwak JY, Lee IJ, Jeon JY. In Vivo Two-Photon Imaging Analysis of Dynamic Degradation of Hepatic Lipid Droplets in MS-275-Treated Mouse Liver. Int J Mol Sci 2022; 23:ijms23179978. [PMID: 36077368 PMCID: PMC9456374 DOI: 10.3390/ijms23179978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 12/03/2022] Open
Abstract
The accumulation of hepatic lipid droplets (LDs) is a hallmark of non-alcoholic fatty liver disease (NAFLD). Appropriate degradation of hepatic LDs and oxidation of complete free fatty acids (FFAs) are important for preventing the development of NAFLD. Histone deacetylase (HDAC) is involved in the impaired lipid metabolism seen in high-fat diet (HFD)-induced obese mice. Here, we evaluated the effect of MS-275, an inhibitor of HDAC1/3, on the degradation of hepatic LDs and FFA oxidation in HFD-induced NAFLD mice. To assess the dynamic degradation of hepatic LDs and FFA oxidation in fatty livers of MS-275-treated HFD C57BL/6J mice, an intravital two-photon imaging system was used and biochemical analysis was performed. The MS-275 improved hepatic metabolic alterations in HFD-induced fatty liver by increasing the dynamic degradation of hepatic LDs and the interaction between LDs and lysozyme in the fatty liver. Numerous peri-droplet mitochondria, lipolysis, and lipophagy were observed in the MS-275-treated mouse fatty liver. Biochemical analysis revealed that the lipolysis and autophagy pathways were activated in MS-275 treated mouse liver. In addition, MS-275 reduced the de novo lipogenesis, but increased the mitochondrial oxidation and the expression levels of oxidation-related genes, such as PPARa, MCAD, CPT1b, and FGF21. Taken together, these results suggest that MS-275 stimulates the degradation of hepatic LDs and mitochondrial free fatty acid oxidation, thus protecting against HFD-induced NAFLD.
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Affiliation(s)
- Chang-Gun Lee
- Department of Medical Genetics, Ajou University School of Medicine, Suwon 16499, Gyeonggi-do, Korea
| | - Soo-Jin Lee
- Three-Dimensional Immune System Imaging Core Facility, Ajou University, Suwon 16499, Gyeonggi-do, Korea
| | - Seokho Park
- Department of Physiology, Ajou University School of Medicine, Suwon 16499, Gyeonggi-do, Korea
- Department of Biomedical Science, The Graduate School, Ajou University, Suwon 16499, Gyeonggi-do, Korea
| | - Sung-E Choi
- Department of Physiology, Ajou University School of Medicine, Suwon 16499, Gyeonggi-do, Korea
| | - Min-Woo Song
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon 16499, Gyeonggi-do, Korea
| | - Hyo Won Lee
- Department of Energy Systems Research, Ajou University, Suwon 16499, Gyeonggi-do, Korea
- Department of Chemistry, Ajou University, Suwon 16499, Gyeonggi-do, Korea
| | - Hae Jin Kim
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon 16499, Gyeonggi-do, Korea
| | - Yup Kang
- Department of Physiology, Ajou University School of Medicine, Suwon 16499, Gyeonggi-do, Korea
| | - Kwan Woo Lee
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon 16499, Gyeonggi-do, Korea
| | - Hwan Myung Kim
- Department of Energy Systems Research, Ajou University, Suwon 16499, Gyeonggi-do, Korea
- Department of Chemistry, Ajou University, Suwon 16499, Gyeonggi-do, Korea
| | - Jong-Young Kwak
- Three-Dimensional Immune System Imaging Core Facility, Ajou University, Suwon 16499, Gyeonggi-do, Korea
- Department of Pharmacology, Ajou University School of Medicine, Suwon 16499, Gyeonggi-do, Korea
- Correspondence: (J.-Y.K.); (J.Y.J.); Tel.: +82-31-219-4487 (J.-Y.K.); +82-31-219-7459 (J.Y.J.); Fax: +82-31-219-5069 (J.-Y.K.); +82-31-219-4497 (J.Y.J.)
| | - In-Jeong Lee
- Three-Dimensional Immune System Imaging Core Facility, Ajou University, Suwon 16499, Gyeonggi-do, Korea
| | - Ja Young Jeon
- Department of Endocrinology and Metabolism, Ajou University School of Medicine, Suwon 16499, Gyeonggi-do, Korea
- Correspondence: (J.-Y.K.); (J.Y.J.); Tel.: +82-31-219-4487 (J.-Y.K.); +82-31-219-7459 (J.Y.J.); Fax: +82-31-219-5069 (J.-Y.K.); +82-31-219-4497 (J.Y.J.)
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