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Luciani L, Pedrelli M, Parini P. Modification of lipoprotein metabolism and function driving atherogenesis in diabetes. Atherosclerosis 2024; 394:117545. [PMID: 38688749 DOI: 10.1016/j.atherosclerosis.2024.117545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/18/2024] [Accepted: 04/10/2024] [Indexed: 05/02/2024]
Abstract
Type 2 diabetes mellitus (T2DM) is a chronic metabolic disease, characterized by raised blood glucose levels and impaired lipid metabolism resulting from insulin resistance and relative insulin deficiency. In diabetes, the peculiar plasma lipoprotein phenotype, consisting in higher levels of apolipoprotein B-containing lipoproteins, hypertriglyceridemia, low levels of HDL cholesterol, elevated number of small, dense LDL, and increased non-HDL cholesterol, results from an increased synthesis and impaired clearance of triglyceride rich lipoproteins. This condition accelerates the development of the atherosclerotic cardiovascular disease (ASCVD), the most common cause of death in T2DM patients. Here, we review the alteration of structure, functions, and distribution of circulating lipoproteins and the pathophysiological mechanisms that induce these modifications in T2DM. The review analyzes the influence of diabetes-associated metabolic imbalances throughout the entire process of the atherosclerotic plaque formation, from lipoprotein synthesis to potential plaque destabilization. Addressing the different pathophysiological mechanisms, we suggest improved approaches for assessing the risk of adverse cardiovascular events and clinical strategies to reduce cardiovascular risk in T2DM and cardiometabolic diseases.
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Affiliation(s)
- Lorenzo Luciani
- Cardio Metabolic Unit, Department of Laboratory Medicine, and Department of Medicine at Huddinge, Karolinska Institutet, Stockholm, Sweden; Interdisciplinary Center for Health Sciences, Sant'Anna School of Advanced Studies, Pisa, Italy
| | - Matteo Pedrelli
- Cardio Metabolic Unit, Department of Laboratory Medicine, and Department of Medicine at Huddinge, Karolinska Institutet, Stockholm, Sweden; Medicine Unit of Endocrinology, Theme Inflammation and Ageing, Karolinska University Hospital, Stockholm, Sweden
| | - Paolo Parini
- Cardio Metabolic Unit, Department of Laboratory Medicine, and Department of Medicine at Huddinge, Karolinska Institutet, Stockholm, Sweden; Medicine Unit of Endocrinology, Theme Inflammation and Ageing, Karolinska University Hospital, Stockholm, Sweden.
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Filtz A, Parihar S, Greenberg GS, Park CM, Scotti A, Lorenzatti D, Badimon JJ, Soffer DE, Toth PP, Lavie CJ, Bittner V, Virani SS, Slipczuk L. New approaches to triglyceride reduction: Is there any hope left? Am J Prev Cardiol 2024; 18:100648. [PMID: 38584606 PMCID: PMC10998004 DOI: 10.1016/j.ajpc.2024.100648] [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: 12/17/2023] [Revised: 02/29/2024] [Accepted: 03/09/2024] [Indexed: 04/09/2024] Open
Abstract
Triglycerides play a crucial role in the efficient storage of energy in the body. Mild and moderate hypertriglyceridemia (HTG) is a heterogeneous disorder with significant association with atherosclerotic cardiovascular disease (ASCVD), including myocardial infarction, ischemic stroke, and peripheral artery disease and represents an important component of the residual ASCVD risk in statin treated patients despite optimal low-density lipoprotein cholesterol reduction. Individuals with severe HTG (>1,000 mg/dL) rarely develop atherosclerosis but have an incremental incidence of acute pancreatitis with significant morbidity and mortality. HTG can occur from a combination of genetic (both mono and polygenic) and environmental factors including poor diet, low physical activity, obesity, medications, and diseases like insulin resistance and other endocrine pathologies. HTG represents a potential target for ASCVD risk and pancreatitis risk reduction, however data on ASCVD reduction by treating HTG is still lacking and HTG-associated acute pancreatitis occurs too rarely to effectively demonstrate treatment benefit. In this review, we address the key aspects of HTG pathophysiology and examine the mechanisms and background of current and emerging therapies in the management of HTG.
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Affiliation(s)
- Annalisa Filtz
- Cardiology Division, Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
- IRCCS Ca' Granda Ospedale Maggiore Policlinico, Università degli Studi di Milano, Milan, Italy
| | - Siddhant Parihar
- Cardiology Division, Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Garred S Greenberg
- Cardiology Division, Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Christine M Park
- Cardiology Division, Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Andrea Scotti
- Cardiology Division, Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Daniel Lorenzatti
- Cardiology Division, Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Juan J Badimon
- Cardiology Department, Hospital General Jaen, Jaen, Spain
- Atherothrombosis Research Unit, Mount Sinai School of Medicine, New York, New York, USA
| | - Daniel E Soffer
- Department of Internal Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Peter P Toth
- CGH Medical Center, Sterling, Illinois
- Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Carl J Lavie
- John Ochsner Heart and Vascular Institute, Ochsner Clinical School-the UQ School of Medicine, New Orleans, Louisiana, USA
| | - Vera Bittner
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Salim S Virani
- Section of Cardiology, Department of Medicine, The Aga Khan University, Karachi, Pakistan
- Section of Cardiology, Texas Heart Institute & Baylor College of Medicine, Houston, TX, USA
| | - Leandro Slipczuk
- Cardiology Division, Montefiore-Einstein Center for Heart and Vascular Care, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY, USA
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Bornfeldt KE. Apolipoprotein C3: form begets function. J Lipid Res 2024; 65:100475. [PMID: 37972731 PMCID: PMC10805671 DOI: 10.1016/j.jlr.2023.100475] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/02/2023] [Accepted: 11/04/2023] [Indexed: 11/19/2023] Open
Abstract
Increased circulating levels of apolipoprotein C3 (APOC3) predict cardiovascular disease (CVD) risk in humans, and APOC3 promotes atherosclerosis in mouse models. APOC3's mechanism of action is due in large part to its ability to slow the clearance of triglyceride-rich lipoproteins (TRLs) and their remnants when APOC3 is carried by these lipoproteins. However, different pools and forms of APOC3 exert distinct biological effects or associations with atherogenic processes. Thus, lipid-free APOC3 induces inflammasome activation in monocytes whereas lipid particle-bound APOC3 does not. APOC3-enriched LDL binds better to the vascular glycosaminoglycan biglycan than does LDL depleted of APOC3. Patterns of APOC3 glycoforms predict CVD risk differently. The function of APOC3 bound to HDL is largely unknown. There is still much to learn about the mechanisms of action of different forms and pools of APOC3 in atherosclerosis and CVD, and whether APOC3 inhibition would prevent CVD risk in patients on LDL-cholesterol lowering medications.
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Affiliation(s)
- Karin E Bornfeldt
- Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, UW Medicine Diabetes Institute and Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA.
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Tomlinson B, Wu QY, Zhong YM, Li YH. Advances in Dyslipidaemia Treatments: Focusing on ApoC3 and ANGPTL3 Inhibitors. J Lipid Atheroscler 2024; 13:2-20. [PMID: 38299167 PMCID: PMC10825570 DOI: 10.12997/jla.2024.13.1.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/23/2023] [Accepted: 10/09/2023] [Indexed: 02/02/2024] Open
Abstract
Apolipoprotein C3 (apoC3) and angiopoietin-like protein 3 (ANGPTL3) inhibit lipolysis by lipoprotein lipase and may influence the secretion and uptake of various lipoproteins. Genetic studies show that depletion of these proteins is associated with improved lipid profiles and reduced cardiovascular events so it was anticipated that drugs which mimic the effects of loss-of-function mutations would be useful lipid treatments. ANGPTL3 inhibitors were initially developed as a treatment for severe hypertriglyceridaemia including familial chylomicronaemia syndrome (FCS), which is usually not adequately controlled with currently available drugs. However, it was found ANGPTL3 inhibitors were also effective in reducing low-density lipoprotein cholesterol (LDL-C) and they were studied in patients with homozygous familial hypercholesterolaemia (FH). Evinacumab targets ANGPTL3 and reduced LDL-C by about 50% in patients with homozygous FH and it has been approved for that indication. The antisense oligonucleotide (ASO) vupanorsen targeting ANGPTL3 was less effective in reducing LDL-C in patients with moderate hypertriglyceridaemia and its development has been discontinued but the small interfering RNA (siRNA) ARO-ANG3 is being investigated in Phase 2 studies. ApoC3 can be inhibited by the ASO volanesorsen, which reduced triglycerides by >70% in patients with FCS and it was approved for FCS in Europe but not in the United States because of concerns about thrombocytopaenia. Olezarsen is an N-acetylgalactosamine-conjugated ASO targeting apoC3 which appears as effective as volanesorsen without the risk of thrombocytopaenia and is undergoing Phase 3 trials. ARO-APOC3 is an siRNA targeting apoC3 that is currently being investigated in Phase 3 studies.
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Affiliation(s)
- Brian Tomlinson
- Faculty of Medicine, Macau University of Science and Technology, Macau, China
| | - Qian-yan Wu
- The Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yi-ming Zhong
- The Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yan-hong Li
- The Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
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Sinari S, Koska J, Hu Y, Furtado J, Jensen MK, Budoff MJ, Nedelkov D, McClelland RL, Billheimer D, Reaven P. Apo CIII Proteoforms, Plasma Lipids, and Cardiovascular Risk in MESA. Arterioscler Thromb Vasc Biol 2023; 43:1560-1571. [PMID: 37317850 PMCID: PMC10516344 DOI: 10.1161/atvbaha.123.319035] [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: 11/21/2022] [Accepted: 05/31/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND Apo CIII (apolipoprotein CIII) is an important regulator of triglyceride metabolism and was associated with cardiovascular risk in several cohorts. It is present in 4 major proteoforms, a native peptide (CIII0a), and glycosylated proteoforms with zero (CIII0b), 1 (CIII1, most abundant), or 2 (CIII2) sialic acids, which may differentially modify lipoprotein metabolism. We studied the relationships of these proteoforms with plasma lipids and cardiovascular risk. METHODS Apo CIII proteoforms were measured by mass spectrometry immunoassay in baseline plasma samples of 5791 participants of Multi-Ethnic Study of Atherosclerosis, an observational community-based cohort. Standard plasma lipids were collected for up to 16 years and cardiovascular events (myocardial infarction, resuscitated cardiac arrest, or stroke) were adjudicated for up to 17 years. RESULTS Apo CIII proteoform composition differed by age, sex, race and ethnicity, body mass index, and fasting glucose. Notably, CIII1 was lower in older participants, men and Black and Chinese (versus White) participants, and higher in obesity and diabetes. In contrast, CIII2 was higher in older participants, men, Black, and Chinese persons, and lower in Hispanic individuals and obesity. Higher CIII2 to CIII1 ratio (CIII2/III1) was associated with lower triglycerides and higher HDL (high-density lipoprotein) in cross-sectional and longitudinal models, independently of clinical and demographic risk factors and total apo CIII. The associations of CIII0a/III1 and CIII0b/III1 with plasma lipids were weaker and varied through cross-sectional and longitudinal analyses. Total apo CIII and CIII2/III1 were positively associated with cardiovascular disease risk (n=669 events, hazard ratios, 1.14 [95% CI, 1.04-1.25] and 1.21 [1.11-1.31], respectively); however, the associations were attenuated after adjustment for clinical and demographic characteristics (1.07 [0.98-1.16]; 1.07 [0.97-1.17]). In contrast, CIII0b/III1 was inversely associated with cardiovascular disease risk even after full adjustment including plasma lipids (0.86 [0.79-0.93]). CONCLUSIONS Our data indicate differences in clinical and demographic relationships of apo CIII proteoforms, and highlight the importance of apo CIII proteoform composition in predicting future lipid patterns and cardiovascular disease risk.
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Affiliation(s)
- Shripad Sinari
- Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ
| | | | | | - Jeremy Furtado
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Majken K Jensen
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
- Department of Public Health, University of Copenhagen, Copenhagen, DK
| | - Matthew J. Budoff
- Lundquist Institute at Harbor-University of California, Los Angeles (UCLA), Torrance, CA
| | | | | | - Dean Billheimer
- Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ
| | - Peter Reaven
- College of Health Solutions, Arizona State University, Phoenix, AZ
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Phillips IR, Veeravalli S, Khadayate S, Shephard EA. Metabolomic and transcriptomic analyses of Fmo5-/- mice reveal roles for flavin-containing monooxygenase 5 (FMO5) in NRF2-mediated oxidative stress response, unfolded protein response, lipid homeostasis, and carbohydrate and one-carbon metabolism. PLoS One 2023; 18:e0286692. [PMID: 37267233 PMCID: PMC10237457 DOI: 10.1371/journal.pone.0286692] [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] [Received: 04/12/2023] [Accepted: 05/20/2023] [Indexed: 06/04/2023] Open
Abstract
Flavin-containing monooxygenase 5 (FMO5) is a member of the FMO family of proteins, best known for their roles in the detoxification of foreign chemicals and, more recently, in endogenous metabolism. We have previously shown that Fmo5-/- mice display an age-related lean phenotype, with much reduced weight gain from 20 weeks of age. The phenotype is characterized by decreased fat deposition, lower plasma concentrations of glucose, insulin and cholesterol, higher glucose tolerance and insulin sensitivity, and resistance to diet-induced obesity. In the present study we report the use of metabolomic and transcriptomic analyses of livers of Fmo5-/- and wild-type mice to identify factors underlying the lean phenotype of Fmo5-/- mice and gain insights into the function of FMO5. Metabolomics was performed by the Metabolon platform, utilising ultrahigh performance liquid chromatography-tandem mass spectroscopy. Transcriptomics was performed by RNA-Seq and results analysed by DESeq2. Disruption of the Fmo5 gene has wide-ranging effects on the abundance of metabolites and expression of genes in the liver. Metabolites whose concentration differed between Fmo5-/- and wild-type mice include several saturated and monounsaturated fatty acids, complex lipids, amino acids, one-carbon intermediates and ADP-ribose. Among the genes most significantly and/or highly differentially expressed are Apoa4, Cd36, Fitm1, Hspa5, Hyou1, Ide, Me1 and Mme. The results reveal that FMO5 is involved in upregulating the NRF2-mediated oxidative stress response, the unfolded protein response and response to hypoxia and cellular stress, indicating a role for the enzyme in adaptation to oxidative and metabolic stress. FMO5 also plays a role in stimulating a wide range of metabolic pathways and processes, particularly ones involved in lipid homeostasis, the uptake and metabolism of glucose, the generation of cytosolic NADPH, and in one-carbon metabolism. The results predict that FMO5 acts by stimulating the NRF2, XBP1, PPARA and PPARG regulatory pathways, while inhibiting STAT1 and IRF7 pathways.
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Affiliation(s)
- Ian R. Phillips
- Department of Structural and Molecular Biology, University College London, London, United Kingdom
- School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom
| | - Sunil Veeravalli
- Department of Structural and Molecular Biology, University College London, London, United Kingdom
| | - Sanjay Khadayate
- MRC London Institute of Medical Sciences (LMS), London, United Kingdom
| | - Elizabeth A. Shephard
- Department of Structural and Molecular Biology, University College London, London, United Kingdom
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Li J, Sun H, Wang Y, Liu J, Wang G. Apolipoprotein C3 is negatively associated with estrogen and mediates the protective effect of estrogen on hypertriglyceridemia in obese adults. Lipids Health Dis 2023; 22:29. [PMID: 36855114 PMCID: PMC9972754 DOI: 10.1186/s12944-023-01797-0] [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: 11/15/2022] [Accepted: 02/23/2023] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND Both estrogen and apolipoprotein C3 (ApoC3) play crucial roles in lipid metabolism. But the link between them remains unclear, and it is unknown whether estrogen regulates triglyceride (TG) levels via ApoC3. Researchers hypothesized that estrogen exerts a regulatory effect on ApoC3 metabolism, and that this regulation could play a significant role in lipid metabolism. To explore this potential link, the present investigation aimed to examine the associations between estradiol (E2), ApoC3, and TG levels in both males and females. METHODS A total of 519 obese people (133 males and 386 premenopausal females) were recruited. Based on their TG levels, the participants were split into two groups [hypertriglyceridemia (HTG) group: TG ≥ 1.7 mmol/L; control group: TG < 1.7 mmol/L]. Serum ApoC3, E2, and TG levels were measured and compared in those two groups for both sexes separately. To ascertain the connection among E2, ApoC3, and TG, linear regression and mediation analysis were used. RESULTS Participants in the HTG group presented higher levels of ApoC3 (P < 0.001). In contrast, they tend to have lower E2 levels than the control. Linear regression analysis proposed that in both sexes, E2 was negatively associated with ApoC3 levels. The relationship remained significant after adjustment for confounding factors (male: standardized β = -0.144, t = -2.392, P < 0.05; female: standardized β = -0.077, t = -2.360, P < 0.001). Furthermore, mediation analysis revealed the relationship between reduced E2 levels and elevated TG levels is directly mediated by ApoC3. CONCLUSIONS In obese men and premenopausal women, ApoC3 was negatively and linearly correlated with serum E2 levels. The findings showed that estrogen may suppress ApoC3 expression and thus lower TG levels.
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Affiliation(s)
- Jinman Li
- grid.411607.5Department of Endocrinology, Beijing Chao-Yang Hospital, Capital Medical University, No. 8, Gongti South Road, Chaoyang District, Beijing, 100020 China
| | - Honglin Sun
- grid.411607.5Department of Endocrinology, Beijing Chao-Yang Hospital, Capital Medical University, No. 8, Gongti South Road, Chaoyang District, Beijing, 100020 China
| | - Ying Wang
- grid.411607.5Department of Medical Examination, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020 China
| | - Jia Liu
- Department of Endocrinology, Beijing Chao-Yang Hospital, Capital Medical University, No. 8, Gongti South Road, Chaoyang District, Beijing, 100020, China.
| | - Guang Wang
- Department of Endocrinology, Beijing Chao-Yang Hospital, Capital Medical University, No. 8, Gongti South Road, Chaoyang District, Beijing, 100020, China.
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Kim JY, Kim NH. New Therapeutic Approaches to the Treatment of Dyslipidemia 1: ApoC-III and ANGPTL3. J Lipid Atheroscler 2023; 12:23-36. [PMID: 36761060 PMCID: PMC9884553 DOI: 10.12997/jla.2023.12.1.23] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/26/2022] [Accepted: 10/04/2022] [Indexed: 01/26/2023] Open
Abstract
Low-density lipoprotein cholesterol (LDL-C)-lowering therapy that increases LDL receptor expression in several ways robustly reduces the risk of atherosclerotic cardiovascular disease (CVD). However, a substantial risk of CVD still remains after intensive LDL-C reduction, which requires new treatment modalities for dyslipidemia and cardiovascular risk management. Triglycerides (TGs) and triglyceride-rich lipoproteins (TRLs) have received attention as indicators of residual cardiovascular risk and as direct causal factors for atherosclerosis and CVDs. Advances in understanding TG and TRL metabolism and their association with clinically evident CVDs have led to the development of novel therapeutic targets, including apolipoprotein C-III (apoC-III) and angiopoietin-like protein 3 (ANGPTL3). Genetic association studies have indicated that both apoC-III and ANGPTL3 play a causal role in the development of atherosclerotic CVD. Both molecules contribute to lipid dysregulation and atherosclerosis primarily by inhibiting lipoprotein lipase; however, recent evidence has shown that novel pathways exist in relation to their lipid-modifying activities. Notably, recent progress in therapeutic approaches, such as monoclonal antibodies or antisense oligonucleotides, has led to several novel therapeutics targeting apoC-III and ANGPTL3. This review summarized the recent updates and discussions related to apoC-III and ANGPTL3 expression.
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Affiliation(s)
- Ji Yoon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
| | - Nam Hoon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea
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Tian C, Qiu M, Lv H, Yue F, Zhou F. Quantitative Proteomic Analysis of Serum Reveals MST1 as a Potential Candidate Biomarker in Spontaneously Diabetic Cynomolgus Monkeys. ACS OMEGA 2022; 7:46702-46716. [PMID: 36570245 PMCID: PMC9774375 DOI: 10.1021/acsomega.2c05663] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
The prevalence of type 2 diabetes (T2DM) is increasing globally, creating essential demands for T2DM animal models for the study of disease pathogenesis, prevention, and therapy. A non-human primate model such as cynomolgus monkeys can develop T2DM spontaneously in an age-dependent way similar to humans. In this study, a data-independent acquisition-based quantitative proteomics strategy was employed to investigate the serum proteomic profiles of spontaneously diabetic cynomolgus monkeys compared with healthy controls. The results revealed significant differences in protein abundances. A total of 95 differentially expressed proteins (DEPs) were quantitatively identified in the current study, among which 31 and 64 proteins were significantly upregulated and downregulated, respectively. Bioinformatic analysis revealed that carbohydrate digestion and absorption was the top enriched pathway by the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis. Protein-protein interaction network analysis demonstrated that MST1 was identified as the most connected protein in the network and could be considered as the hub protein. MST1 was significantly and inversely associated with FSG and HbA1c. Furthermore, recent lines of evidence also indicate that MST1 acts as a crucial regulator in regulating hepatic gluconeogenesis to maintain metabolic homeostasis while simultaneously suppressing the inflammatory processes. In conclusion, our study provides novel insights into serum proteome changes in spontaneously diabetic cynomolgus monkeys and points out that the dysregulation of several DEPs may play an important role in the pathogenesis of T2DM.
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Affiliation(s)
- Chaoyang Tian
- Key
Laboratory of Biomedical Engineering of Hainan Province, School of
Biomedical Engineering, Hainan University, Haikou, Hainan 570228, China
- One
Health Institute, Hainan University, Haikou, Hainan 570228, China
| | - Mingyin Qiu
- Animal
Experiment Department, Hainan Jingang Biotech
Co., Ltd., Haikou, Hainan 571100, China
| | - Haizhou Lv
- Animal
Experiment Department, Hainan Jingang Biotech
Co., Ltd., Haikou, Hainan 571100, China
| | - Feng Yue
- Key
Laboratory of Biomedical Engineering of Hainan Province, School of
Biomedical Engineering, Hainan University, Haikou, Hainan 570228, China
- One
Health Institute, Hainan University, Haikou, Hainan 570228, China
| | - Feifan Zhou
- Key
Laboratory of Biomedical Engineering of Hainan Province, School of
Biomedical Engineering, Hainan University, Haikou, Hainan 570228, China
- One
Health Institute, Hainan University, Haikou, Hainan 570228, China
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Rouland A, Masson D, Lagrost L, Vergès B, Gautier T, Bouillet B. Role of apolipoprotein C1 in lipoprotein metabolism, atherosclerosis and diabetes: a systematic review. Cardiovasc Diabetol 2022; 21:272. [PMID: 36471375 PMCID: PMC9724408 DOI: 10.1186/s12933-022-01703-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022] Open
Abstract
Apolipoprotein C1 (apoC1) is a small size apolipoprotein whose exact role is not totally clarified but which seems to modulate significantly the metabolism of lipoproteins. ApoC1 is involved in the metabolism of triglyceride-rich lipoproteins by inhibiting the binding of very low density lipoproteins (VLDL) to VLDL-receptor (VLDL-R), to low density lipoprotein receptor (LDL-R) and to LDL receptor related protein (LRP), by reducing the activity of lipoprotein lipase (LPL) and by stimulating VLDL production, all these effects leading to increase plasma triglycerides. ApoC1 takes also part in the metabolism of high density lipoproteins (HDL) by inhibiting Cholesterol Ester Transfer Protein (CETP). The functionality of apoC1 on CETP activity is impaired in diabetes that might account, at least in part, for the increased plasma CETP activity observed in patients with diabetes. Its different effects on lipoprotein metabolism with a possible role in the modulation of inflammation makes the net impact of apoC1 on cardiometabolic risk difficult to figure out and apoC1 might be considered as pro-atherogenic or anti-atherogenic depending on the overall metabolic context. Making the link between total plasma apoC1 levels and the risk of cardio-metabolic diseases is difficult due to the high exchangeability of this small protein whose biological effects might depend essentially on its association with VLDL or HDL. The role of apoC1 in humans is not entirely elucidated and further studies are needed to determine its precise role in lipid metabolism and its possible pleiotropic effects on inflammation and vascular wall biology. In this review, we will present data on apoC1 structure and distribution among lipoproteins, on the effects of apoC1 on VLDL metabolism and HDL metabolism and we will discuss the possible links between apoC1, atherosclerosis and diabetes.
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Affiliation(s)
- Alexia Rouland
- grid.31151.37Endocrinology and Diabetology Unit, University Hospital, Dijon, France ,grid.493090.70000 0004 4910 6615INSERM/University of Bourgogne Franche-Comté, LNC UMR1231, Dijon, France
| | - David Masson
- grid.493090.70000 0004 4910 6615INSERM/University of Bourgogne Franche-Comté, LNC UMR1231, Dijon, France ,LipSTIC LabEx, UFR Sciences de Santé, Dijon, France
| | - Laurent Lagrost
- grid.493090.70000 0004 4910 6615INSERM/University of Bourgogne Franche-Comté, LNC UMR1231, Dijon, France ,LipSTIC LabEx, UFR Sciences de Santé, Dijon, France
| | - Bruno Vergès
- grid.31151.37Endocrinology and Diabetology Unit, University Hospital, Dijon, France ,grid.493090.70000 0004 4910 6615INSERM/University of Bourgogne Franche-Comté, LNC UMR1231, Dijon, France
| | - Thomas Gautier
- grid.493090.70000 0004 4910 6615INSERM/University of Bourgogne Franche-Comté, LNC UMR1231, Dijon, France ,LipSTIC LabEx, UFR Sciences de Santé, Dijon, France
| | - Benjamin Bouillet
- grid.31151.37Endocrinology and Diabetology Unit, University Hospital, Dijon, France ,grid.493090.70000 0004 4910 6615INSERM/University of Bourgogne Franche-Comté, LNC UMR1231, Dijon, France ,grid.31151.37Service Endocrinologie, Diabétologie et Maladies Métaboliques, Hôpital François Mitterrand, CHU Dijon, BP 77908, 21079 Dijon, France
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11
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Ramms B, Patel S, Sun X, Pessentheiner AR, Ducasa GM, Mullick AE, Lee RG, Crooke RM, Tsimikas S, Witztum JL, Gordts PL. Interventional hepatic apoC-III knockdown improves atherosclerotic plaque stability and remodeling by triglyceride lowering. JCI Insight 2022; 7:e158414. [PMID: 35653195 PMCID: PMC9310539 DOI: 10.1172/jci.insight.158414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 06/01/2022] [Indexed: 11/17/2022] Open
Abstract
Apolipoprotein C-III (apoC-III) is a critical regulator of triglyceride metabolism and correlates positively with hypertriglyceridemia and cardiovascular disease (CVD). It remains unclear if therapeutic apoC-III lowering reduces CVD risk and if the CVD correlation depends on the lipid-lowering or antiinflammatory properties. We determined the impact of interventional apoC-III lowering on atherogenesis using an apoC-III antisense oligonucleotide (ASO) in 2 hypertriglyceridemic mouse models where the intervention lowers plasma triglycerides and in a third lipid-refractory model. On a high-cholesterol Western diet apoC-III ASO treatment did not alter atherosclerotic lesion size but did attenuate advanced and unstable plaque development in the triglyceride-responsive mouse models. No lesion size or composition improvement was observed with apoC-III ASO in the lipid-refractory mice. To circumvent confounding effects of continuous high-cholesterol feeding, we tested the impact of interventional apoC-III lowering when switching to a cholesterol-poor diet after 12 weeks of Western diet. In this diet switch regimen, apoC-III ASO treatment significantly reduced plasma triglycerides, atherosclerotic lesion progression, and necrotic core area and increased fibrous cap thickness in lipid-responsive mice. Again, apoC-III ASO treatment did not alter triglyceride levels, lesion development, and lesion composition in lipid-refractory mice after the diet switch. Our findings suggest that interventional apoC-III lowering might be an effective strategy to reduce atherosclerosis lesion size and improve plaque stability when lipid lowering is achieved.
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Affiliation(s)
- Bastian Ramms
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
- Department of Chemistry, Biochemistry I, Bielefeld University, Bielefeld, Germany
| | - Sohan Patel
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Xiaoli Sun
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
- Department of Pharmacology, Mays Cancer Center, Transplant Center, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | | | - G. Michelle Ducasa
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
| | | | | | | | - Sotirios Tsimikas
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
- Ionis Pharmaceuticals, Carlsbad, California, USA
| | - Joseph L. Witztum
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
| | - Philip L.S.M. Gordts
- Department of Medicine, University of California, San Diego, La Jolla, California, USA
- Glycobiology Research and Training Center, University of California, San Diego, La Jolla, California, USA
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12
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Basavaraju P, Balasubramani R, Kathiresan DS, Devaraj I, Babu K, Alagarsamy V, Puthamohan VM. Genetic Regulatory Networks of Apolipoproteins and Associated Medical Risks. Front Cardiovasc Med 2022; 8:788852. [PMID: 35071357 PMCID: PMC8770923 DOI: 10.3389/fcvm.2021.788852] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 11/22/2021] [Indexed: 12/22/2022] Open
Abstract
Apolipoproteins (APO proteins) are the lipoprotein family proteins that play key roles in transporting lipoproteins all over the body. There are nearly more than twenty members reported in the APO protein family, among which the A, B, C, E, and L play major roles in contributing genetic risks to several disorders. Among these genetic risks, the single nucleotide polymorphisms (SNPs), involving the variation of single nucleotide base pairs, and their contributing polymorphisms play crucial roles in the apolipoprotein family and its concordant disease heterogeneity that have predominantly recurred through the years. In this review, we have contributed a handful of information on such genetic polymorphisms that include APOE, ApoA1/B ratio, and A1/C3/A4/A5 gene cluster-based population genetic studies carried throughout the world, to elaborately discuss the effects of various genetic polymorphisms in imparting various medical conditions, such as obesity, cardiovascular, stroke, Alzheimer's disease, diabetes, vascular complications, and other associated risks.
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Affiliation(s)
- Preethi Basavaraju
- Biomaterials and Nano-Medicine Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, India
| | - Rubadevi Balasubramani
- Biomaterials and Nano-Medicine Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, India
| | - Divya Sri Kathiresan
- Biomaterials and Nano-Medicine Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, India
| | - Ilakkiyapavai Devaraj
- Biomaterials and Nano-Medicine Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, India
| | - Kavipriya Babu
- Biomaterials and Nano-Medicine Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, India
| | - Vasanthakumar Alagarsamy
- Biomaterials and Nano-Medicine Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, India
| | - Vinayaga Moorthi Puthamohan
- Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, India
- *Correspondence: Vinayaga Moorthi Puthamohan
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13
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Leiherer A, Mündlein A, Brandtner EM, Säly CH, Ramadani H, Vonbank A, Mader A, Dopheide JF, Jylhä A, Lääperi M, Laaksonen R, März W, Fraunberger P, Kleber M, Drexel H. Lipid profiles of patients with manifest coronary versus peripheral atherosclerosis - Is there a difference? J Intern Med 2021; 290:1249-1263. [PMID: 34337800 DOI: 10.1111/joim.13368] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
AIM Peripheral arterial disease (PAD) and coronary artery disease (CAD) are both caused by atherosclerosis. Serum lipids and lipoproteins are predictive of the development of atherosclerosis but it is not clear if they differ in the two manifestations, PAD and CAD. We tested whether a more detailed characterization of the lipid and lipoprotein patterns of PAD and CAD allows a clear differentiation between the two atherosclerotic phenotypes. METHODS A cohort of 274 statin-naïve patients with either newly diagnosed imaging proven PAD (n = 89) or stable CAD (n = 185) was characterized using nuclear magnetic resonance- and liquid chromatography-tandem mass spectrometry-based advanced lipid and lipoprotein analysis. An independent cohort of 1239 patients with PAD and CAD was used for validation. RESULTS We found a significant difference in markers of inflammation as well as ceramide and phosphatidylcholine levels between patients with PAD and CAD. In contrast, basic lipid markers including total cholesterol, LDL cholesterol, HDL cholesterol, lipoprotein(a) or detailed lipoprotein profiles did not differ significantly between patients with PAD and CAD. Applying ratios and scores derived from ceramides and phosphatidylcholines further improved the discrimination between PAD and CAD. These significant differences were independent of body composition, from the status of smoking or type 2 diabetes mellitus, and also from apolipoprotein C-III and other inflammatory parameters which were different between CAD and PAD. CONCLUSION The present study clearly suggests that PAD and CAD differ in terms of their ceramide- and phosphatidylcholine-based lipid patterns but not in lipoprotein characteristics.
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Affiliation(s)
- Andreas Leiherer
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria.,Private University in the Principality of Liechtenstein, Triesen, Liechtenstein.,Medical Central Laboratories, Feldkirch, Austria
| | - Axel Mündlein
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria.,Private University in the Principality of Liechtenstein, Triesen, Liechtenstein
| | - Eva Maria Brandtner
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria
| | - Christoph H Säly
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria.,Department of Medicine I, Academic Teaching Hospital Feldkirch, Feldkirch, Austria.,Private University in the Principality of Liechtenstein, Triesen, Liechtenstein
| | - Hana Ramadani
- Division of Angiology, Swiss Cardiovascular Center, University Hospital of Bern, Bern, Switzerland
| | - Alexander Vonbank
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria.,Department of Medicine I, Academic Teaching Hospital Feldkirch, Feldkirch, Austria.,Private University in the Principality of Liechtenstein, Triesen, Liechtenstein
| | - Arthur Mader
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria.,Department of Medicine I, Academic Teaching Hospital Feldkirch, Feldkirch, Austria.,Private University in the Principality of Liechtenstein, Triesen, Liechtenstein
| | - Jörn F Dopheide
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria.,Division of Angiology, Swiss Cardiovascular Center, University Hospital of Bern, Bern, Switzerland
| | | | | | - Reijo Laaksonen
- Zora Biosciences, Espoo, Finland.,Finnish Cardiovascular Research Center, University of Tampere, Tampere, Finland
| | - Winfried März
- Department of Medicine V, University Medical Center Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.,Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria.,Synlab Academy, Synlab Holding, Mannheim, Germany
| | - Peter Fraunberger
- Private University in the Principality of Liechtenstein, Triesen, Liechtenstein.,Medical Central Laboratories, Feldkirch, Austria
| | - Marcus Kleber
- Department of Medicine V, University Medical Center Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Heinz Drexel
- Vorarlberg Institute for Vascular Investigation and Treatment (VIVIT), Feldkirch, Austria.,Division of Angiology, Swiss Cardiovascular Center, University Hospital of Bern, Bern, Switzerland.,Private University in the Principality of Liechtenstein, Triesen, Liechtenstein.,Drexel University College of Medicine, Philadelphia, Pennsylvania, USA.,Department of Internal Medicine, Academic Teaching Hospital Bregenz, Bregenz, Austria
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14
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Dib I, Khalil A, Chouaib R, El-Makhour Y, Noureddine H. Apolipoprotein C-III and cardiovascular diseases: when genetics meet molecular pathologies. Mol Biol Rep 2021; 48:875-886. [PMID: 33389539 PMCID: PMC7778846 DOI: 10.1007/s11033-020-06071-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 12/05/2020] [Indexed: 01/31/2023]
Abstract
Cardiovascular diseases (CVD) have overtaken infectious diseases and are currently the world's top killer. A quite strong linkage between this type of ailments and elevated plasma levels of triglycerides (TG) has been always noticed. Notably, this risk factor is mired in deep confusion, since its role in atherosclerosis is uncertain. One of the explanations that aim to decipher this persistent enigma was provided by apolipoprotein C-III (apoC-III), a small protein historically recognized as an important regulator of TG metabolism. Preeminently, hundreds of studies have been carried out in order to explore the APOC3 genetic background, as well as to establish a correlation between its variants and dyslipidemia-related disorders, pointing to an earnest predictive power for future outcomes. Among several polymorphisms reported within the APOC3, the SstI site in its 3'-untranslated region (3'-UTR) was the most consistently and robustly associated with an increased CVD risk. As more genetic data supporting its importance in cardiovascular events aggregate, it was declared, correspondingly, that apoC-III exerts various atherogenic effects, either by intervening in the function and catabolism of many lipoproteins, or by inducing endothelial inflammation and smooth muscle cells (SMC) proliferation. This review was designed to shed the light on the structural and functional aspects of the APOC3 gene, the existing association between its SstI polymorphism and CVD, and the specific molecular mechanisms that underlie apoC-III pathological implications. In addition, the translation of all these gathered knowledges into preventive and therapeutic benefits will be detailed too.
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Affiliation(s)
- Israa Dib
- grid.411324.10000 0001 2324 3572Environmental Health Research Lab (EHRL), Faculty of Sciences V, Lebanese University, Nabatieh, Lebanon
| | - Alia Khalil
- grid.411324.10000 0001 2324 3572Environmental Health Research Lab (EHRL), Faculty of Sciences V, Lebanese University, Nabatieh, Lebanon
| | - Racha Chouaib
- grid.411324.10000 0001 2324 3572Environmental Health Research Lab (EHRL), Faculty of Sciences V, Lebanese University, Nabatieh, Lebanon
| | - Yolla El-Makhour
- grid.411324.10000 0001 2324 3572Environmental Health Research Lab (EHRL), Faculty of Sciences V, Lebanese University, Nabatieh, Lebanon
| | - Hiba Noureddine
- grid.411324.10000 0001 2324 3572Environmental Health Research Lab (EHRL), Faculty of Sciences V, Lebanese University, Nabatieh, Lebanon
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15
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Borén J, Adiels M, Björnson E, Matikainen N, Söderlund S, Rämö J, Ståhlman M, Ripatti P, Ripatti S, Palotie A, Mancina RM, Hakkarainen A, Romeo S, Packard CJ, Taskinen MR. Effects of TM6SF2 E167K on hepatic lipid and very low-density lipoprotein metabolism in humans. JCI Insight 2020; 5:144079. [PMID: 33170809 PMCID: PMC7819740 DOI: 10.1172/jci.insight.144079] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 11/04/2020] [Indexed: 12/11/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is characterized by hepatic lipid accumulation. The transmembrane 6 superfamily member 2 (TM6SF2) E167K genetic variant associates with NAFLD and with reduced plasma triglyceride levels in humans. However, the molecular mechanisms underlying these associations remain unclear. We hypothesized that TM6SF2 E167K affects hepatic very low-density lipoprotein (VLDL) secretion and studied the kinetics of apolipoprotein B100 (apoB100) and triglyceride metabolism in VLDL in homozygous subjects. In 10 homozygote TM6SF2 E167K carriers and 10 matched controls, we employed stable-isotope tracer and compartmental modeling techniques to determine apoB100 and triglyceride kinetics in the 2 major VLDL subfractions: large triglyceride-rich VLDL1 and smaller, less triglyceride-rich VLDL2. VLDL1-apoB100 production was markedly reduced in homozygote TM6SF2 E167K carriers compared with controls. Likewise, VLDL1-triglyceride production was 35% lower in the TM6SF2 E167K carriers. In contrast, the direct production rates for VLDL2-apoB100 and triglyceride were not different between carriers and controls. In conclusion, the TM6SF2 E167K genetic variant was linked to a specific reduction in hepatic secretion of large triglyceride-rich VLDL1. The impaired secretion of VLDL1 explains the reduced plasma triglyceride concentration and provides a basis for understanding the lower risk of cardiovascular disease associated with the TM6SF2 E167K genetic variant.
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Affiliation(s)
- Jan Borén
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.,Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Martin Adiels
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Elias Björnson
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Niina Matikainen
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Endocrinology, Abdominal Center, Helsinki University Hospital, Helsinki, Finland
| | - Sanni Söderlund
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland.,Endocrinology, Abdominal Center, Helsinki University Hospital, Helsinki, Finland
| | - Joel Rämö
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland
| | - Marcus Ståhlman
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Pietari Ripatti
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland
| | - Samuli Ripatti
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland.,Broad Institute of the Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA.,Department of Public Health, Clinicum, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Aarno Palotie
- Institute for Molecular Medicine Finland, Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland.,Broad Institute of the Massachusetts Institute of Technology and Harvard University, Cambridge, Massachusetts, USA
| | - Rosellina M Mancina
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Antti Hakkarainen
- Helsinki and Uusimaa Hospital District Medical Imaging Center, Radiology, Helsinki University Hospital, University of Helsinki, Finland
| | - Stefano Romeo
- Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.,Wallenberg Laboratory for Cardiovascular and Metabolic Research, Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Chris J Packard
- Institute of Cardiovascular & Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Marja-Riitta Taskinen
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
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16
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Aguilar-Recarte D, Palomer X, Vázquez-Carrera M. Uncovering the role of apolipoprotein C-III in insulin resistance. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2020; 33:108-115. [PMID: 33303217 DOI: 10.1016/j.arteri.2020.09.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/03/2020] [Accepted: 09/10/2020] [Indexed: 11/26/2022]
Abstract
Apolipoprotein C-III (apoC-III) is a small protein that is predominantly synthesized in the liver and mainly resides at the surface of triglyceride-rich lipoproteins. Its expression is upregulated by glucose and reduced by insulin, with enhanced apoC-III promoting hypertriglyceridemia and inflammation in vascular cells. The protein is also elevated in patients with diabetes, suggesting that enhanced apoC-III levels might contribute to the development of type 2 diabetes mellitus. The present review focuses on the key mechanisms by which apoC-III could promote type 2 diabetes mellitus, including exacerbation of insulin resistance in skeletal muscle, activation of β-cell apoptosis, promotion of weight gain through its effects on white adipose tissue and hypothalamus, and attenuation of the beneficial effects of high-density lipoproteins on glucose metabolism. Therapeutic strategies aimed at reducing apoC-III levels may not only reduce hypertriglyceridemia but also might improve insulin resistance, thus delaying the development of type 2 diabetes mellitus.
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Affiliation(s)
- David Aguilar-Recarte
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Institute of Biomedicine of the University of Barcelona (IBUB), Spain; Spanish Biomedical Research Center in Diabetes and Associated Metabolic Diseases (CIBERDEM)-Instituto de Salud Carlos III, Spain; Research Institute-Hospital Sant Joan de Déu, Barcelona, Spain
| | - Xavier Palomer
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Institute of Biomedicine of the University of Barcelona (IBUB), Spain; Spanish Biomedical Research Center in Diabetes and Associated Metabolic Diseases (CIBERDEM)-Instituto de Salud Carlos III, Spain; Research Institute-Hospital Sant Joan de Déu, Barcelona, Spain
| | - Manuel Vázquez-Carrera
- Department of Pharmacology, Toxicology and Therapeutic Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Institute of Biomedicine of the University of Barcelona (IBUB), Spain; Spanish Biomedical Research Center in Diabetes and Associated Metabolic Diseases (CIBERDEM)-Instituto de Salud Carlos III, Spain; Research Institute-Hospital Sant Joan de Déu, Barcelona, Spain.
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17
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Chétiveaux M, Croyal M, Ouguerram K, Fall F, Flet L, Zair Y, Nobecourt E, Krempf M. Effect of fasting and feeding on apolipoprotein A-I kinetics in preβ 1-HDL, α-HDL, and triglyceride-rich lipoproteins. Sci Rep 2020; 10:15585. [PMID: 32973209 PMCID: PMC7519065 DOI: 10.1038/s41598-020-72323-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 08/03/2020] [Indexed: 11/24/2022] Open
Abstract
The aim of this study was to compare the kinetics of apolipoprotein (apo)A-I during fed and fasted states in humans, and to determine to what extent the intestine contributes to apoA-I production. A stable isotope study was conducted to determine the kinetics of apoA-I in preβ1 high-density lipoprotein (HDL) and α-HDL. Six healthy male subjects received a constant intravenous infusion of 2H3-leucine for 14 h. Subjects in the fed group also received small hourly meals. Blood samples were collected hourly during tracer infusion and then daily for 4 days. Tracer enrichments were measured by mass spectrometry and then fitted to a compartmental model using asymptotic plateau of very-low-density lipoprotein (VLDL) apoB100 and triglyceride-rich lipoprotein (TRL) apoB48 as estimates of hepatic and intestinal precursor pools, respectively. The clearance rate of preβ1-HDL-apoA-I was lower in fed individuals compared with fasted subjects (p < 0.05). No other differences in apoA-I production or clearance rates were observed between the groups. No significant correlation was observed between plasma apoC-III concentrations and apoA-I kinetic data. In contrast, HDL-apoC-III was inversely correlated with the conversion of α-HDL to preβ1-HDL. Total apoA-I synthesis was not significantly increased in fed subjects. Hepatic production was not significantly different between the fed group (17.17 ± 2.75 mg/kg/day) and the fasted group (18.67 ± 1.69 mg/kg/day). Increase in intestinal apoA-I secretion in fed subjects was 2.20 ± 0.61 mg/kg/day. The HDL-apoA-I kinetics were similar in the fasted and fed groups, with 13% of the total apoA-I originating from the intestine with feeding.
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Affiliation(s)
| | - Mikaël Croyal
- CRNH-O Mass Spectrometry Core Facility, Nantes, France. .,NUN, INRA, CHU Nantes, UMR 1280, PhAN, IMAD, CRNH-O, IRS-UN-Spectrométrie de Masse-8, quai Moncousu, 44000, Nantes, France.
| | - Khadija Ouguerram
- CRNH-O Mass Spectrometry Core Facility, Nantes, France.,NUN, INRA, CHU Nantes, UMR 1280, PhAN, IMAD, CRNH-O, IRS-UN-Spectrométrie de Masse-8, quai Moncousu, 44000, Nantes, France
| | - Fanta Fall
- CRNH-O Mass Spectrometry Core Facility, Nantes, France
| | - Laurent Flet
- Pharmacy Department, Nantes University Hospital, Nantes, France
| | - Yassine Zair
- CRNH-O Mass Spectrometry Core Facility, Nantes, France
| | - Estelle Nobecourt
- CRNH-O Mass Spectrometry Core Facility, Nantes, France.,Nephrology Department, CHU Saint-Pierre, La Réunion, France
| | - Michel Krempf
- CRNH-O Mass Spectrometry Core Facility, Nantes, France.,Clinique Bretéché, Groupe Elsan, Nantes, France
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18
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Zhou F, Wu X, Pinos I, Abraham BM, Barrett TJ, von Lintig J, Fisher EA, Amengual J. β-Carotene conversion to vitamin A delays atherosclerosis progression by decreasing hepatic lipid secretion in mice. J Lipid Res 2020; 61:1491-1503. [PMID: 32963037 DOI: 10.1194/jlr.ra120001066] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Atherosclerosis is characterized by the pathological accumulation of cholesterol-laden macrophages in the arterial wall. Atherosclerosis is also the main underlying cause of CVDs, and its development is largely driven by elevated plasma cholesterol. Strong epidemiological data find an inverse association between plasma β-carotene with atherosclerosis, and we recently showed that β-carotene oxygenase 1 (BCO1) activity, responsible for β-carotene cleavage to vitamin A, is associated with reduced plasma cholesterol in humans and mice. In this study, we explore whether intact β-carotene or vitamin A affects atherosclerosis progression in the atheroprone LDLR-deficient mice. Compared with control-fed Ldlr-/- mice, β-carotene-supplemented mice showed reduced atherosclerotic lesion size at the level of the aortic root and reduced plasma cholesterol levels. These changes were absent in Ldlr-/- /Bco1-/- mice despite accumulating β-carotene in plasma and atherosclerotic lesions. We discarded the implication of myeloid BCO1 in the development of atherosclerosis by performing bone marrow transplant experiments. Lipid production assays found that retinoic acid, the active form of vitamin A, reduced the secretion of newly synthetized triglyceride and cholesteryl ester in cell culture and mice. Overall, our findings provide insights into the role of BCO1 activity and vitamin A in atherosclerosis progression through the regulation of hepatic lipid metabolism.
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Affiliation(s)
- Felix Zhou
- Cardiovascular Research Center, Leon H. Charney Division of Cardiology, Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Xiaoyun Wu
- Department of Food Science and Human Nutrition, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Ivan Pinos
- Department of Food Science and Human Nutrition, University of Illinois Urbana Champaign, Urbana, IL, USA.,Division of Nutritional Sciences, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Benjamin M Abraham
- Department of Food Science and Human Nutrition, University of Illinois Urbana Champaign, Urbana, IL, USA
| | - Tessa J Barrett
- Cardiovascular Research Center, Leon H. Charney Division of Cardiology, Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Johannes von Lintig
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Edward A Fisher
- Cardiovascular Research Center, Leon H. Charney Division of Cardiology, Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Jaume Amengual
- Department of Food Science and Human Nutrition, University of Illinois Urbana Champaign, Urbana, IL, USA .,Division of Nutritional Sciences, University of Illinois Urbana Champaign, Urbana, IL, USA
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19
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Yan H, Niimi M, Matsuhisa F, Zhou H, Kitajima S, Chen Y, Wang C, Yang X, Yao J, Yang D, Zhang J, Murakami M, Nakajima K, Wang Y, Liu E, Liang J, Chen YE, Fan J. Apolipoprotein CIII Deficiency Protects Against Atherosclerosis in Knockout Rabbits. Arterioscler Thromb Vasc Biol 2020; 40:2095-2107. [PMID: 32757647 DOI: 10.1161/atvbaha.120.314368] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Apo (apolipoprotein) CIII mediates the metabolism of triglyceride (TG)-rich lipoproteins. High levels of plasma apoCIII are positively correlated with the plasma TG levels and increase the cardiovascular risk. However, whether apoCIII is directly involved in the development of atherosclerosis has not been fully elucidated. Approach and Results: To examine the possible roles of apoCIII in lipoprotein metabolism and atherosclerosis, we generated apoCIII KO (knockout) rabbits using ZFN (zinc finger nuclease) technique. On a normal standard diet, apoCIII KO rabbits exhibited significantly lower plasma levels of TG than those of WT (wild type) rabbits while total cholesterol and HDL (high-density lipoprotein) cholesterol levels were unchanged. Analysis of lipoproteins isolated by sequential ultracentrifugation revealed that reduced plasma TG levels in KO rabbits were accompanied by prominent reduction of VLDLs (very-low-density lipoproteins) and IDLs (intermediate-density lipoproteins). In addition, KO rabbits showed faster TG clearance rate after intravenous fat load than WT rabbits. On a cholesterol-rich diet, KO rabbits exhibited constantly and significantly lower levels of plasma total cholesterol and TG than WT rabbits, which was caused by a remarkable reduction of β-VLDLs-the major atherogenic lipoproteins. β-VLDLs of KO rabbits showed higher uptake by cultured hepatocytes and were cleared faster from the circulation than β-VLDLs isolated from WT rabbits. Both aortic and coronary atherosclerosis was significantly reduced in KO rabbits compared with WT rabbits. CONCLUSIONS These results indicate that apoCIII deficiency facilitates TG-rich lipoprotein catabolism, and therapeutic inhibition of apoCIII expression may become a novel means not only for the treatment of hyperlipidemia but also for atherosclerosis.
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Affiliation(s)
- Haizhao Yan
- From the Department of Molecular Pathology, Faculty of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Chuo, Japan (H.Y., M.N., H.Z., Y.C., C.W., J.F.).,CAS Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health, China (H.Y.)
| | - Manabu Niimi
- From the Department of Molecular Pathology, Faculty of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Chuo, Japan (H.Y., M.N., H.Z., Y.C., C.W., J.F.)
| | - Fumikazu Matsuhisa
- Division of Biological Science and Development, Analytical Research Center for Experimental Sciences, Saga University, Japan (F.M., S.K.)
| | - Huanjin Zhou
- From the Department of Molecular Pathology, Faculty of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Chuo, Japan (H.Y., M.N., H.Z., Y.C., C.W., J.F.)
| | - Shuji Kitajima
- Division of Biological Science and Development, Analytical Research Center for Experimental Sciences, Saga University, Japan (F.M., S.K.)
| | - Yajie Chen
- From the Department of Molecular Pathology, Faculty of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Chuo, Japan (H.Y., M.N., H.Z., Y.C., C.W., J.F.)
| | - Chuan Wang
- From the Department of Molecular Pathology, Faculty of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Chuo, Japan (H.Y., M.N., H.Z., Y.C., C.W., J.F.)
| | - Xiawen Yang
- Division of Molecular Signaling, Department of the Advanced Biomedical Research, Faculty of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Chuo, Japan (X.Y., J.Y.)
| | - Jian Yao
- Division of Molecular Signaling, Department of the Advanced Biomedical Research, Faculty of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Chuo, Japan (X.Y., J.Y.)
| | - Dongshan Yang
- Center for Advanced Models for Translational Sciences and Therapeutics, University of Michigan Medical Center, Ann Arbor (D.Y., J.Z., Y.E.C.)
| | - Jifeng Zhang
- Center for Advanced Models for Translational Sciences and Therapeutics, University of Michigan Medical Center, Ann Arbor (D.Y., J.Z., Y.E.C.)
| | - Masami Murakami
- Department of Clinical Laboratory Medicine, Gunma University, Graduate School of Medicine, Maebashi, Japan (M.M., K.N.)
| | - Katsuyuki Nakajima
- Department of Clinical Laboratory Medicine, Gunma University, Graduate School of Medicine, Maebashi, Japan (M.M., K.N.)
| | - Yao Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China (Y.W., J.F.)
| | - Enqi Liu
- Research Institute of Atherosclerotic Disease and Laboratory Animal Center, Xi'an Jiaotong University School of Medicine, China (E.L.)
| | - Jingyan Liang
- Institute of Translational Medicine, Medical College, Yangzhou University, China (J.L.)
| | - Y Eugene Chen
- Center for Advanced Models for Translational Sciences and Therapeutics, University of Michigan Medical Center, Ann Arbor (D.Y., J.Z., Y.E.C.)
| | - Jianglin Fan
- From the Department of Molecular Pathology, Faculty of Medicine, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Chuo, Japan (H.Y., M.N., H.Z., Y.C., C.W., J.F.).,School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China (Y.W., J.F.)
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20
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Stitziel NO, Kanter JE, Bornfeldt KE. Emerging Targets for Cardiovascular Disease Prevention in Diabetes. Trends Mol Med 2020; 26:744-757. [PMID: 32423639 PMCID: PMC7395866 DOI: 10.1016/j.molmed.2020.03.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/18/2020] [Accepted: 03/31/2020] [Indexed: 12/26/2022]
Abstract
Type 1 and type 2 diabetes mellitus (T1DM and T2DM) increase the risk of atherosclerotic cardiovascular disease (CVD), resulting in acute cardiovascular events, such as heart attack and stroke. Recent clinical trials point toward new treatment and prevention strategies for cardiovascular complications of T2DM. New antidiabetic agents show unexpected cardioprotective benefits. Moreover, genetic and reverse translational strategies have revealed potential novel targets for CVD prevention in diabetes, including inhibition of apolipoprotein C3 (APOC3). Modeling and pharmacology-based approaches to improve insulin action provide additional potential strategies to combat CVD. The development of new strategies for improved diabetes and lipid control fuels hope for future prevention of CVD associated with diabetes.
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Affiliation(s)
- Nathan O Stitziel
- Department of Internal Medicine, Cardiovascular Division, Washington University School of Medicine, St Louis, MO 63110, USA; Department of Genetics, Washington University School of Medicine, St Louis, MO 63110, USA; McDonnell Genome Institute, Washington University School of Medicine, St Louis, MO 63110, USA
| | - Jenny E Kanter
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, University of Washington Medicine Diabetes Institute, University of Washington School of Medicine, Seattle, WA 98109, USA
| | - Karin E Bornfeldt
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, University of Washington Medicine Diabetes Institute, University of Washington School of Medicine, Seattle, WA 98109, USA; Department of Pathology, University of Washington Medicine Diabetes Institute, University of Washington School of Medicine, Seattle, WA 98109, USA.
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21
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Nurmohamed NS, Dallinga-Thie GM, Stroes ESG. Targeting apoC-III and ANGPTL3 in the treatment of hypertriglyceridemia. Expert Rev Cardiovasc Ther 2020; 18:355-361. [PMID: 32511037 DOI: 10.1080/14779072.2020.1768848] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
INTRODUCTION The prevalence of hypertriglyceridemia (HTG) is increasing. Elevated triglyceride (TG) levels are associated with an increased cardiovascular disease (CVD) risk. Moreover, severe HTG results in an elevated risk of pancreatitis, especially in severe HTG with an up to 350-fold increased risk. Both problems emphasize the clinical need for effective TG lowering. AREAS COVERED The purpose of this review is to discuss the currently available therapies and to elaborate the most promising novel therapeutics for TG lowering. EXPERT OPINION Conventional lipid lowering strategies do not efficiently lower plasma TG levels, leaving a residual CVD and pancreatitis risk. Both apolipoprotein C-III (apoC-III) and angiopoietin-like 3 (ANGPTL3) are important regulators in TG-rich lipoprotein (TRL) metabolism. Several novel agents targeting these linchpins have ended phase II/III trials. Volanesorsen targeting apoC-III has shown reductions in plasma TG levels up to 90%. Multiple ANGPLT3 inhibitors (evinacumab, IONIS-ANGPTL3-LRx, ARO-ANG3) effectuate TG reductions up to 70% with concomitant potent reduction in all other apoB containing lipoprotein fractions. We expect these therapeutics to become players in the treatment for (especially) severe HTG in the near future.
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Affiliation(s)
- N S Nurmohamed
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences , Amsterdam, The Netherlands.,Department of Cardiology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Cardiovascular Sciences , Amsterdam, The Netherlands
| | - G M Dallinga-Thie
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences , Amsterdam, The Netherlands
| | - E S G Stroes
- Department of Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Cardiovascular Sciences , Amsterdam, The Netherlands
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22
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Shieh YT, Chang CT, Toh JJ, Hsu YH, Chang IT, Hsia MH, Liu MY. Cyclodextrin-micellar electrokinetic chromatography of apolipoproteins on human very low-density lipoprotein. Electrophoresis 2020; 41:1333-1343. [PMID: 32390137 DOI: 10.1002/elps.202000065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 04/19/2020] [Accepted: 05/04/2020] [Indexed: 11/05/2022]
Abstract
The apolipoproteins (APOs) of human very low-density lipoprotein (VLDL) were investigated by an optimized cyclodextrin-micellar electrokinetic chromatography (CD-MEKC) method. The separation buffer consisted of 20 mM sodium phosphate, 40 mM bile salts (50% sodium cholate and 50% sodium deoxycholate), 25 mM carboxymethyl-β-cyclodextrin (CM-β-CD) (pH 7.0). For CD-MEKC separation, a sample injection time of 12 s, a separation voltage of 15 KV, and a capillary temperature of 15°C were chosen. The optimal CD-MEKC method showed good resolution and repeatability for VLDL APOs. Identification and quantitation of VLDL APOs CI, CIII, and E were based on comparison with human APO standards. Good linear relationships with correlation coefficient (R2 ) 0.99 were obtained for APOs CI, CIII, and E standards. For these three APOs, the linear ranges were within 0.01-0.54 mg/mL, and the concentration limits of detection (LODs) were lower than 0.02 mg/mL. Moreover, VLDL APOs from four uremic patients and four healthy subjects were compared. The uremic and healthy CD-MEKC profiles showed dramatic difference. The levels of APO CIII were significantly higher for two patients, and the level of APO E was significantly higher for one patient. This study might be helpful for following the disease development of uremia and cardiovascular disease (CVD) in the future.
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Affiliation(s)
- Ying-Tzu Shieh
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan
| | - Chiz-Tzung Chang
- China Medical University Hospital, Taichung, Taiwan.,Department of Internal Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Jia-Jia Toh
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan
| | - Yun-Hsun Hsu
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan
| | - I-Ting Chang
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan
| | - Min-Hui Hsia
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan
| | - Mine-Yine Liu
- Department of Chemistry, National Changhua University of Education, Changhua, Taiwan
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23
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Dao Thi VL, Wu X, Belote RL, Andreo U, Takacs CN, Fernandez JP, Vale-Silva LA, Prallet S, Decker CC, Fu RM, Qu B, Uryu K, Molina H, Saeed M, Steinmann E, Urban S, Singaraja RR, Schneider WM, Simon SM, Rice CM. Stem cell-derived polarized hepatocytes. Nat Commun 2020; 11:1677. [PMID: 32245952 PMCID: PMC7125181 DOI: 10.1038/s41467-020-15337-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 03/03/2020] [Indexed: 12/03/2022] Open
Abstract
Human stem cell-derived hepatocyte-like cells (HLCs) offer an attractive platform to study liver biology. Despite their numerous advantages, HLCs lack critical in vivo characteristics, including cell polarity. Here, we report a stem cell differentiation protocol that uses transwell filters to generate columnar polarized HLCs with clearly defined basolateral and apical membranes separated by tight junctions. We show that polarized HLCs secrete cargo directionally: Albumin, urea, and lipoproteins are secreted basolaterally, whereas bile acids are secreted apically. Further, we show that enterically transmitted hepatitis E virus (HEV) progeny particles are secreted basolaterally as quasi-enveloped particles and apically as naked virions, recapitulating essential steps of the natural infectious cycle in vivo. We also provide proof-of-concept that polarized HLCs can be used for pharmacokinetic and drug-drug interaction studies. This novel system provides a powerful tool to study hepatocyte biology, disease mechanisms, genetic variation, and drug metabolism in a more physiologically relevant setting.
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Affiliation(s)
- Viet Loan Dao Thi
- Laboratory of Virology and Infectious Diseases, The Rockefeller University, New York, NY, USA.
- Schaller Research Group at Department of Infectious Diseases and Virology, Heidelberg University Hospital, Cluster of Excellence CellNetworks, Heidelberg, Germany.
| | - Xianfang Wu
- Laboratory of Virology and Infectious Diseases, The Rockefeller University, New York, NY, USA.
| | - Rachel L Belote
- Laboratory of Cellular Biophysics, The Rockefeller University, New York, NY, USA
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, 84105, USA
| | - Ursula Andreo
- Laboratory of Virology and Infectious Diseases, The Rockefeller University, New York, NY, USA
| | - Constantin N Takacs
- Laboratory of Virology and Infectious Diseases, The Rockefeller University, New York, NY, USA
- Laboratory of Cellular Biophysics, The Rockefeller University, New York, NY, USA
- Department of Molecular, Cellular and Developmental Biology, Microbial Sciences Institute, Yale University, West Haven, CT, 06516, USA
| | - Joseph P Fernandez
- Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - Luis Andre Vale-Silva
- Department of Biology, New York University, New York, NY, USA
- Department of Bioinformatics and Functional Genomics, Biomedical Computer Vision Group, BIOQUANT, IPMB, University of Heidelberg, Heidelberg, Germany
| | - Sarah Prallet
- Laboratory of Virology and Infectious Diseases, The Rockefeller University, New York, NY, USA
| | - Charlotte C Decker
- Schaller Research Group at Department of Infectious Diseases and Virology, Heidelberg University Hospital, Cluster of Excellence CellNetworks, Heidelberg, Germany
| | - Rebecca M Fu
- Schaller Research Group at Department of Infectious Diseases and Virology, Heidelberg University Hospital, Cluster of Excellence CellNetworks, Heidelberg, Germany
| | - Bingqian Qu
- Department of Infectious Diseases and Virology, Heidelberg University Hospital, Cluster of Excellence CellNetworks, Heidelberg, Germany
- German Center for Infection Research (DZIF), Partner Site Heidelberg, TTU Hepatitis, Germany
| | - Kunihiro Uryu
- Electron Microscopy Resource Center, The Rockefeller University, New York, NY, USA
| | - Henrik Molina
- Proteomics Resource Center, The Rockefeller University, New York, NY, USA
| | - Mohsan Saeed
- Laboratory of Virology and Infectious Diseases, The Rockefeller University, New York, NY, USA
| | - Eike Steinmann
- Department of Molecular and Medical Virology, Ruhr-University Bochum, Bochum, Germany
| | - Stephan Urban
- Department of Infectious Diseases and Virology, Heidelberg University Hospital, Cluster of Excellence CellNetworks, Heidelberg, Germany
- German Center for Infection Research (DZIF), Partner Site Heidelberg, TTU Hepatitis, Germany
| | - Roshni R Singaraja
- A*STAR (Agency for Science, Technology and Research) Institute and Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - William M Schneider
- Laboratory of Virology and Infectious Diseases, The Rockefeller University, New York, NY, USA
| | - Sanford M Simon
- Laboratory of Cellular Biophysics, The Rockefeller University, New York, NY, USA
| | - Charles M Rice
- Laboratory of Virology and Infectious Diseases, The Rockefeller University, New York, NY, USA.
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24
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Magnadóttir B, Uysal-Onganer P, Kraev I, Svansson V, Hayes P, Lange S. Deiminated proteins and extracellular vesicles - Novel serum biomarkers in whales and orca. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2020; 34:100676. [PMID: 32114311 DOI: 10.1016/j.cbd.2020.100676] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 01/16/2020] [Accepted: 02/17/2020] [Indexed: 02/06/2023]
Abstract
Peptidylarginine deiminases (PADs) are a family of phylogenetically conserved calcium-dependent enzymes which cause post-translational protein deimination. This can result in neoepitope generation, affect gene regulation and allow for protein moonlighting via functional and structural changes in target proteins. Extracellular vesicles (EVs) carry cargo proteins and genetic material and are released from cells as part of cellular communication. EVs are found in most body fluids where they can be useful biomarkers for assessment of health status. Here, serum-derived EVs were profiled, and post-translationally deiminated proteins and EV-related microRNAs are described in 5 ceataceans: minke whale, fin whale, humpback whale, Cuvier's beaked whale and orca. EV-serum profiles were assessed by transmission electron microscopy and nanoparticle tracking analysis. EV profiles varied between the 5 species and were identified to contain deiminated proteins and selected key inflammatory and metabolic microRNAs. A range of proteins, critical for immune responses and metabolism were identified to be deiminated in cetacean sera, with some shared KEGG pathways of deiminated proteins relating to immunity and physiology, while some KEGG pathways were species-specific. This is the first study to characterise and profile EVs and to report deiminated proteins and putative effects of protein-protein interaction networks via such post-translationald deimination in cetaceans, revealing key immune and metabolic factors to undergo this post-translational modification. Deiminated proteins and EVs profiles may possibly be developed as new biomarkers for assessing health status of sea mammals.
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Affiliation(s)
- Bergljót Magnadóttir
- Institute for Experimental Pathology, University of Iceland, Keldur v. Vesturlandsveg, 112 Reykjavik, Iceland.
| | - Pinar Uysal-Onganer
- Cancer Research Group, School of Life Sciences, University of Westminster, London W1W 6UW, UK.
| | - Igor Kraev
- Electron Microscopy Suite, Faculty of Science, Technology, Engineering and Mathematics, Open University, Milton Keynes MK7 6AA, UK.
| | - Vilhjálmur Svansson
- Institute for Experimental Pathology, University of Iceland, Keldur v. Vesturlandsveg, 112 Reykjavik, Iceland
| | - Polly Hayes
- Tissue Architecture and Regeneration Research Group, School of Life Sciences, University of Westminster, London W1W 6UW, UK.
| | - Sigrun Lange
- Tissue Architecture and Regeneration Research Group, School of Life Sciences, University of Westminster, London W1W 6UW, UK.
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25
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Butler AA, Graham JL, Stanhope KL, Wong S, King S, Bremer AA, Krauss RM, Hamilton J, Havel PJ. Role of angiopoietin-like protein 3 in sugar-induced dyslipidemia in rhesus macaques: suppression by fish oil or RNAi. J Lipid Res 2020; 61:376-386. [PMID: 31919051 DOI: 10.1194/jlr.ra119000423] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 01/07/2020] [Indexed: 02/07/2023] Open
Abstract
Angiopoietin-like protein 3 (ANGPTL3) inhibits lipid clearance and is a promising target for managing cardiovascular disease. Here we investigated the effects of a high-sugar (high-fructose) diet on circulating ANGPTL3 concentrations in rhesus macaques. Plasma ANGPTL3 concentrations increased ∼30% to 40% after 1 and 3 months of a high-fructose diet (both P < 0.001 vs. baseline). During fructose-induced metabolic dysregulation, plasma ANGPTL3 concentrations were positively correlated with circulating indices of insulin resistance [assessed with fasting insulin and the homeostatic model assessment of insulin resistance (HOMA-IR)], hypertriglyceridemia, adiposity (assessed as leptin), and systemic inflammation [C-reactive peptide (CRP)] and negatively correlated with plasma levels of the insulin-sensitizing hormone adropin. Multiple regression analyses identified a strong association between circulating APOC3 and ANGPTL3 concentrations. Higher baseline plasma levels of both ANGPTL3 and APOC3 were associated with an increased risk for fructose-induced insulin resistance. Fish oil previously shown to prevent insulin resistance and hypertriglyceridemia in this model prevented increases of ANGPTL3 without affecting systemic inflammation (increased plasma CRP and interleukin-6 concentrations). ANGPTL3 RNAi lowered plasma concentrations of ANGPTL3, triglycerides (TGs), VLDL-C, APOC3, and APOE. These decreases were consistent with a reduced risk of atherosclerosis. In summary, dietary sugar-induced increases of circulating ANGPTL3 concentrations after metabolic dysregulation correlated positively with leptin levels, HOMA-IR, and dyslipidemia. Targeting ANGPTL3 expression with RNAi inhibited dyslipidemia by lowering plasma TGs, VLDL-C, APOC3, and APOE levels in rhesus macaques.
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Affiliation(s)
- Andrew A Butler
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, MO
| | - James L Graham
- Department of Molecular Biosciences, University of California, Davis, Davis, CA.,School of Veterinary Medicine, California National Primate Research Center, and Department of Nutrition, University of California, Davis, Davis, CA
| | - Kimber L Stanhope
- Department of Molecular Biosciences, University of California, Davis, Davis, CA.,School of Veterinary Medicine, California National Primate Research Center, and Department of Nutrition, University of California, Davis, Davis, CA
| | - So Wong
- Arrowhead Pharmaceuticals, Pasadena, CA
| | - Sarah King
- Children's Hospital Oakland Research Institute, Oakland, CA
| | - Andrew A Bremer
- Department of Pediatrics, Vanderbilt University, Nashville, TN
| | | | | | - Peter J Havel
- Department of Molecular Biosciences, University of California, Davis, Davis, CA .,School of Veterinary Medicine, California National Primate Research Center, and Department of Nutrition, University of California, Davis, Davis, CA
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26
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Stahel P, Xiao C, Nahmias A, Lewis GF. Role of the Gut in Diabetic Dyslipidemia. Front Endocrinol (Lausanne) 2020; 11:116. [PMID: 32231641 PMCID: PMC7083132 DOI: 10.3389/fendo.2020.00116] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 02/21/2020] [Indexed: 12/13/2022] Open
Abstract
Type 2 diabetes (T2D) is associated with increased risk of cardiovascular disease (CVD). In insulin resistant states such as the metabolic syndrome, overproduction and impaired clearance of liver-derived very-low-density lipoproteins and gut-derived chylomicrons (CMs) contribute to hypertriglyceridemia and elevated atherogenic remnant lipoproteins. Although ingested fat is the major stimulus of CM secretion, intestinal lipid handling and ultimately CM secretory rate is determined by numerous additional regulatory inputs including nutrients, hormones and neural signals that fine tune CM secretion during fasted and fed states. Insulin resistance and T2D represent perturbed metabolic states in which intestinal sensitivity to key regulatory hormones such as insulin, leptin and glucagon-like peptide-1 (GLP-1) may be altered, contributing to increased CM secretion. In this review, we describe the evidence from human and animal models demonstrating increased CM secretion in insulin resistance and T2D and discuss the molecular mechanisms underlying these effects. Several novel compounds are in various stages of preclinical and clinical investigation to modulate intestinal CM synthesis and secretion. Their efficacy, safety and therapeutic utility are discussed. Similarly, the effects of currently approved lipid modulating therapies such as statins, ezetimibe, fibrates, and PCSK9 inhibitors on intestinal CM production are discussed. The intricacies of intestinal CM production are an active area of research that may yield novel therapies to prevent atherosclerotic CVD in insulin resistance and T2D.
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27
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Malalla ZH, Al-Serri AE, AlAskar HM, Al-Kandari WY, Al-Bustan SA. Sequence analysis and variant identification at the APOC3 gene locus indicates association of rs5218 with BMI in a sample of Kuwaiti's. Lipids Health Dis 2019; 18:224. [PMID: 31856839 PMCID: PMC6921598 DOI: 10.1186/s12944-019-1165-6] [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: 09/16/2019] [Accepted: 12/03/2019] [Indexed: 11/10/2022] Open
Abstract
Background APOC3 is important in lipid transport and metabolism with limited studies reporting genetic sequence variations in specific ethnic groups. The present study aimed to analyze the full APOC3 sequence among Kuwaiti Arabs and test the association of selected variants with lipid levels and BMI. Methods Variants were identified by Sanger sequencing the entire APOC3 gene in 100 Kuwaiti Arabs. Variants and their genotypes were fully characterized and used to construct haplotype blocks. Four variants (rs5128, rs2854117, rs2070668, KUAPOC3N3 g.5196 A > G) were selected for testing association with serum lipid levels and BMI in a cohort (n = 733). Results APOC3 sequence (4.3 kb) of a Kuwaiti Arab was deposited in Genbank (accession number KJ437193). Forty-two variants including 3 novels were identified including an “A” insertion at genomic positions 116,700,599–116,700,600 (promoter region) and two substitutions in intron 1 at genomic positions 116,700,819 and 116,701,159. Only three variants, (rs5128, rs2854117, and rs2070668) were analyzed for association of which rs5128 showed a trend for association with increased BMI, TG and VLDL levels that was further investigated using multivariate analysis. A significant association of rs5128 with BMI (p < 0.05) was observed following a dominant genetic model with increased risk by an OR of 4.022 (CI: 1.13–14.30). Conclusion The present study is the first to report sequence analysis of APOC3 in an Arab ethnic group. This study supports the inclusion of rs5128 as a marker for assessing genetic risk to dyslipidemia and obesity and the inclusion of the novel variant g.5196 A > G for population stratification of Arabs.
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Affiliation(s)
- Zainab H Malalla
- Department of Biological Sciences, Faculty of Science, Kuwait University, Kuwait, Kuwait
| | - Ahmad E Al-Serri
- Human Genetics Unit, Department of Pathology, Faculty of Medicine, Kuwait University, Hawally, Kuwait
| | - Huda M AlAskar
- Department of Biological Sciences, Faculty of Science, Kuwait University, Kuwait, Kuwait
| | - Wafaa Y Al-Kandari
- Department of Biological Sciences, Faculty of Science, Kuwait University, Kuwait, Kuwait
| | - Suzanne A Al-Bustan
- Department of Biological Sciences, Faculty of Science, Kuwait University, Kuwait, Kuwait.
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28
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Zaytsoff SJM, Brown CLJ, Montina T, Metz GAS, Abbott DW, Uwiera RRE, Inglis GD. Corticosterone-mediated physiological stress modulates hepatic lipid metabolism, metabolite profiles, and systemic responses in chickens. Sci Rep 2019; 9:19225. [PMID: 31848364 PMCID: PMC6917734 DOI: 10.1038/s41598-019-52267-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 09/02/2019] [Indexed: 01/22/2023] Open
Abstract
The impact of physiological stress on lipid metabolism, the metabolome, and systemic responses was examined in chickens. To incite a stress response, birds were continuously administered corticosterone (CORT) in their drinking water at three doses (0 mg/L, 10 mg/L, and 30 mg/L), and they were sampled 1, 5, and 12 days after commencement of CORT administration. Corticosterone administration to birds differentially regulated lipogenesis genes (i.e. FAS, ACC, ME, and SREBF1), and histopathological examination indicated lipid deposition in hepatocytes. In addition, CORT affected water-soluble metabolite profiles in the liver, as well as in kidney tissue and breast muscle; thirteen unique metabolites were distinguished in CORT-treated birds and this was consistent with the dysregulation of lipid metabolism due to physiological stress. Acute phase responses (APRs) were also altered by CORT, and in particular, expression of SAA1 was decreased and expression of CP was increased. Furthermore, CORT administration caused lymphoid depletion in the bursa of Fabricius and elevated IL6 and TGFβ2 mRNA expression after 5 and 12 days of CORT administration. Collectively, incitement of physiological stress via administration of CORT in chickens modulated host metabolism and systemic responses, which indicated that energy potentials are diverted from muscle anabolism during periods of stress.
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Affiliation(s)
- Sarah J M Zaytsoff
- Agriculture and Agri-Food Canada, 5403-1st Avenue S, Lethbridge, AB, Canada.,Department of Agricultural, Food, and Nutritional Science, University of Alberta, 410 Agriculture/Forestry Centre, Edmonton, AB, Canada
| | - Catherine L J Brown
- Agriculture and Agri-Food Canada, 5403-1st Avenue S, Lethbridge, AB, Canada.,Department of Biological Sciences, University of Lethbridge, 4401 University Drive, Lethbridge, AB, Canada
| | - Tony Montina
- Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive, Lethbridge, AB, Canada
| | - Gerlinde A S Metz
- Department of Neuroscience, University of Lethbridge, 4401 University Drive, Lethbridge, AB, Canada
| | - D Wade Abbott
- Agriculture and Agri-Food Canada, 5403-1st Avenue S, Lethbridge, AB, Canada
| | - Richard R E Uwiera
- Department of Agricultural, Food, and Nutritional Science, University of Alberta, 410 Agriculture/Forestry Centre, Edmonton, AB, Canada.
| | - G Douglas Inglis
- Agriculture and Agri-Food Canada, 5403-1st Avenue S, Lethbridge, AB, Canada.
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Emerging evidences for the opposite role of apolipoprotein C3 and apolipoprotein A5 in lipid metabolism and coronary artery disease. Lipids Health Dis 2019; 18:220. [PMID: 31836003 PMCID: PMC6909560 DOI: 10.1186/s12944-019-1166-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 12/06/2019] [Indexed: 12/16/2022] Open
Abstract
Apolipoprotein C3 (apoC3) and apolipoprotein A5 (apoA5), encoded by APOA1/C3/A4/A5 gene cluster, are two critical regulators of plasma triglyceride (TG) metabolism. Deficiency of apoC3 or apoA5 led to significant decreased or increased plasma TG levels, respectively. Recent studies indicated apoC3 and apoA5 also played roles in plasma remnant cholesterol, high density lipoprotein (HDL) and hepatic TG metabolisms. Moreover, large scale population genetic studies indicated that loss of function mutations in APOC3 and APOA5 gene conferred decreased and increased risk of coronary artery disease (CAD), respectively. This manuscript mainly reviewed existing evidences suggesting the opposite role of apoC3 and apoA5 in lipid metabolism and CAD risk, and discussed the potential correlation between these two apolipoproteins.
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Reyes-Soffer G, Sztalryd C, Horenstein RB, Holleran S, Matveyenko A, Thomas T, Nandakumar R, Ngai C, Karmally W, Ginsberg HN, Ramakrishnan R, Pollin TI. Effects of APOC3 Heterozygous Deficiency on Plasma Lipid and Lipoprotein Metabolism. Arterioscler Thromb Vasc Biol 2019; 39:63-72. [PMID: 30580564 DOI: 10.1161/atvbaha.118.311476] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Objective- Apo (apolipoprotein) CIII inhibits lipoprotein lipase (LpL)-mediated lipolysis of VLDL (very-low-density lipoprotein) triglyceride (TG) and decreases hepatic uptake of VLDL remnants. The discovery that 5% of Lancaster Old Order Amish are heterozygous for the APOC3 R19X null mutation provided the opportunity to determine the effects of a naturally occurring reduction in apo CIII levels on the metabolism of atherogenic containing lipoproteins. Approach and Results- We conducted stable isotope studies of VLDL-TG and apoB100 in 5 individuals heterozygous for the null mutation APOC3 R19X (CT) and their unaffected (CC) siblings. Fractional clearance rates and production rates of VLDL-TG and apoB100 in VLDL, IDL (intermediate-density lipoprotein), LDL, apo CIII, and apo CII were determined. Affected (CT) individuals had 49% reduction in plasma apo CIII levels compared with CCs ( P<0.01) and reduced plasma levels of TG (35%, P<0.02), VLDL-TG (45%, P<0.02), and VLDL-apoB100 (36%, P<0.05). These changes were because of higher fractional clearance rates of VLDL-TG and VLDL-apoB100 with no differences in production rates. CTs had higher rates of the conversion of VLDL remnants to LDL compared with CCs. In contrast, rates of direct removal of VLDL remnants did not differ between the groups. As a result, the flux of apoB100 from VLDL to LDL was not reduced, and the plasma levels of LDL-cholesterol and LDL-apoB100 were not lower in the CT group. Apo CIII production rate was lower in CTs compared with CCs, whereas apo CII production rate was not different between the 2 groups. The fractional clearance rates of both apo CIII and apo CII were higher in CTs than CCs. Conclusions- These studies demonstrate that 50% reductions in plasma apo CIII, in otherwise healthy subjects, results in a significantly higher rate of conversion of VLDL to LDL, with little effect on direct hepatic uptake of VLDL. When put in the context of studies demonstrating significant protection from cardiovascular events in individuals with loss of function variants in the APOC3 gene, our results provide strong evidence that therapies which increase the efficiency of conversion of VLDL to LDL, thereby reducing remnant concentrations, should reduce the risk of cardiovascular disease.
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Affiliation(s)
- Gissette Reyes-Soffer
- From the Columbia University Vagelos College of Physicians and Surgeons, New York (G.R.-S., S.H., A.M., T.T., R.N., C.N., W.K., H.N.G., R.R.)
| | - Carol Sztalryd
- Maryland School of Medicine, University of Maryland, Baltimore (C.S., R.B.H., T.I.P.)
- Baltimore VA Medical Center, VA Research Service, Geriatric Research, Education and Clinical Center and VA Maryland Health Care System (C.S., T.I.P.)
| | - Richard B Horenstein
- Maryland School of Medicine, University of Maryland, Baltimore (C.S., R.B.H., T.I.P.)
| | - Stephen Holleran
- From the Columbia University Vagelos College of Physicians and Surgeons, New York (G.R.-S., S.H., A.M., T.T., R.N., C.N., W.K., H.N.G., R.R.)
| | - Anastasiya Matveyenko
- From the Columbia University Vagelos College of Physicians and Surgeons, New York (G.R.-S., S.H., A.M., T.T., R.N., C.N., W.K., H.N.G., R.R.)
| | - Tiffany Thomas
- From the Columbia University Vagelos College of Physicians and Surgeons, New York (G.R.-S., S.H., A.M., T.T., R.N., C.N., W.K., H.N.G., R.R.)
| | - Renu Nandakumar
- From the Columbia University Vagelos College of Physicians and Surgeons, New York (G.R.-S., S.H., A.M., T.T., R.N., C.N., W.K., H.N.G., R.R.)
| | - Colleen Ngai
- From the Columbia University Vagelos College of Physicians and Surgeons, New York (G.R.-S., S.H., A.M., T.T., R.N., C.N., W.K., H.N.G., R.R.)
| | - Wahida Karmally
- From the Columbia University Vagelos College of Physicians and Surgeons, New York (G.R.-S., S.H., A.M., T.T., R.N., C.N., W.K., H.N.G., R.R.)
| | - Henry N Ginsberg
- From the Columbia University Vagelos College of Physicians and Surgeons, New York (G.R.-S., S.H., A.M., T.T., R.N., C.N., W.K., H.N.G., R.R.)
| | - Rajasekhar Ramakrishnan
- From the Columbia University Vagelos College of Physicians and Surgeons, New York (G.R.-S., S.H., A.M., T.T., R.N., C.N., W.K., H.N.G., R.R.)
| | - Toni I Pollin
- Maryland School of Medicine, University of Maryland, Baltimore (C.S., R.B.H., T.I.P.)
- Baltimore VA Medical Center, VA Research Service, Geriatric Research, Education and Clinical Center and VA Maryland Health Care System (C.S., T.I.P.)
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Abstract
An increased risk of cardiovascular disease, independent of conventional risk factors, is present even at minor levels of renal impairment and is highest in patients with end-stage renal disease (ESRD) requiring dialysis. Renal dysfunction changes the level, composition and quality of blood lipids in favour of a more atherogenic profile. Patients with advanced chronic kidney disease (CKD) or ESRD have a characteristic lipid pattern of hypertriglyceridaemia and low HDL cholesterol levels but normal LDL cholesterol levels. In the general population, a clear relationship exists between LDL cholesterol and major atherosclerotic events. However, in patients with ESRD, LDL cholesterol shows a negative association with these outcomes at below average LDL cholesterol levels and a flat or weakly positive association with mortality at higher LDL cholesterol levels. Overall, the available data suggest that lowering of LDL cholesterol is beneficial for prevention of major atherosclerotic events in patients with CKD and in kidney transplant recipients but is not beneficial in patients requiring dialysis. The 2013 Kidney Disease: Improving Global Outcomes (KDIGO) Clinical Practice Guideline for Lipid Management in CKD provides simple recommendations for the management of dyslipidaemia in patients with CKD and ESRD. However, emerging data and novel lipid-lowering therapies warrant some reappraisal of these recommendations.
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Kegulian NC, Ramms B, Horton S, Trenchevska O, Nedelkov D, Graham MJ, Lee RG, Esko JD, Yassine HN, Gordts PLSM. ApoC-III Glycoforms Are Differentially Cleared by Hepatic TRL (Triglyceride-Rich Lipoprotein) Receptors. Arterioscler Thromb Vasc Biol 2019; 39:2145-2156. [PMID: 31390883 DOI: 10.1161/atvbaha.119.312723] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE ApoC-III (apolipoprotein C-III) glycosylation can predict cardiovascular disease risk. Higher abundance of disialylated (apoC-III2) over monosialylated (apoC-III1) glycoforms is associated with lower plasma triglyceride levels. Yet, it remains unclear whether apoC-III glycosylation impacts TRL (triglyceride-rich lipoprotein) clearance and whether apoC-III antisense therapy (volanesorsen) affects distribution of apoC-III glycoforms. Approach and Results: To measure the abundance of human apoC-III glycoforms in plasma over time, human TRLs were injected into wild-type mice and mice lacking hepatic TRL clearance receptors, namely HSPGs (heparan sulfate proteoglycans) or both LDLR (low-density lipoprotein receptor) and LRP1 (LDLR-related protein 1). ApoC-III was more rapidly cleared in the absence of HSPG (t1/2=25.4 minutes) than in wild-type animals (t1/2=55.1 minutes). In contrast, deficiency of LDLR and LRP1 (t1/2=56.1 minutes) did not affect clearance of apoC-III. After injection, a significant increase in the relative abundance of apoC-III2 was observed in HSPG-deficient mice, whereas the opposite was observed in mice lacking LDLR and LRP1. In patients, abundance of plasma apoC-III glycoforms was assessed after placebo or volanesorsen administration. Volanesorsen treatment correlated with a statistically significant 1.4-fold increase in the relative abundance of apoC-III2 and a 15% decrease in that of apoC-III1. The decrease in relative apoC-III1 abundance was strongly correlated with decreased plasma triglyceride levels in patients. CONCLUSIONS Our results indicate that HSPGs preferentially clear apoC-III2. In contrast, apoC-III1 is more effectively cleared by LDLR/LRP1. Clinically, the increase in the apoC-III2/apoC-III1 ratio on antisense lowering of apoC-III might reflect faster clearance of apoC-III1 because this metabolic shift associates with improved triglyceride levels.
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Affiliation(s)
- Natalie C Kegulian
- From the Department of Medicine, University of Southern California, Los Angeles (N.C.K., S.H., H.N.Y.)
| | - Bastian Ramms
- Department of Medicine (B.R., J.D.E., P.L.S.M.G.), University of California San Diego, La Jolla
- Department of Chemistry, Biochemistry I, Bielefeld University, Germany (B.R.)
| | - Steven Horton
- From the Department of Medicine, University of Southern California, Los Angeles (N.C.K., S.H., H.N.Y.)
| | | | - Dobrin Nedelkov
- The Biodesign Institute, Arizona State University, Tempe (O.T., D.N.)
| | - Mark J Graham
- Ionis Pharmaceuticals, Carlsbad, CA (M.J.G., R.G.L.)
| | - Richard G Lee
- Ionis Pharmaceuticals, Carlsbad, CA (M.J.G., R.G.L.)
| | - Jeffrey D Esko
- Department of Medicine (B.R., J.D.E., P.L.S.M.G.), University of California San Diego, La Jolla
- Glycobiology Research and Training Center (J.D.E., P.L.S.M.G.), University of California San Diego, La Jolla
| | - Hussein N Yassine
- From the Department of Medicine, University of Southern California, Los Angeles (N.C.K., S.H., H.N.Y.)
| | - Philip L S M Gordts
- Department of Medicine (B.R., J.D.E., P.L.S.M.G.), University of California San Diego, La Jolla
- Glycobiology Research and Training Center (J.D.E., P.L.S.M.G.), University of California San Diego, La Jolla
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Zwol WV, Rimbert A, Kuivenhoven JA. The Future of Lipid-lowering Therapy. J Clin Med 2019; 8:E1085. [PMID: 31340607 PMCID: PMC6678580 DOI: 10.3390/jcm8071085] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 07/19/2019] [Accepted: 07/22/2019] [Indexed: 12/13/2022] Open
Abstract
The recent introduction of inhibitors of proprotein convertase subtilisin/kexin 9 to lower low-density lipoprotein (LDL) cholesterol on top of statins or as monotherapy is rapidly changing the landscape of treatment of atherosclerotic cardiovascular disease (ASCVD). However, existing lipid-lowering drugs have little impact on lipoprotein(a) (Lp(a)) or plasma triglycerides, two other risk factors for ASCVD. This review summarizes the evidence and the rationale to target Lp(a) and triglycerides and provides an overview of currently tested strategies to lower Lp(a), apolipoprotein C-III and angiopoietin-like protein 3. In addition, it summarizes new findings on the use of omega-3 fatty acids (OM3FA) to fight ASCVD. With the exception of OM3FA supplementation, the promise of the experimental drugs discussed here depends on the long-term safety and efficacy of monoclonal antibodies and/or antisense oligonucleotides Clinical outcome trials will ultimately prove whether these new therapeutic modalities will reduce ASCVD risk.
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Affiliation(s)
- Willemien van Zwol
- Department of Pediatrics, Section Molecular Genetics, University of Groningen, University Medical Centre Groningen, 9713 Groningen, The Netherlands
| | - Antoine Rimbert
- Department of Pediatrics, Section Molecular Genetics, University of Groningen, University Medical Centre Groningen, 9713 Groningen, The Netherlands
| | - Jan Albert Kuivenhoven
- Department of Pediatrics, Section Molecular Genetics, University of Groningen, University Medical Centre Groningen, 9713 Groningen, The Netherlands.
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APOC3 promotes TNF-α-induced expression of JAM-1 in endothelial cell via PI3K-IKK2-p65 pathway. Cardiovasc Pathol 2019; 41:11-17. [DOI: 10.1016/j.carpath.2019.02.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/27/2019] [Accepted: 02/24/2019] [Indexed: 02/06/2023] Open
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35
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Basu A, Bebu I, Jenkins AJ, Stoner JA, Zhang Y, Klein RL, Lopes-Virella MF, Garvey WT, Budoff MJ, Alaupovic P, Lyons TJ. Serum apolipoproteins and apolipoprotein-defined lipoprotein subclasses: a hypothesis-generating prospective study of cardiovascular events in T1D. J Lipid Res 2019; 60:1432-1439. [PMID: 31203233 DOI: 10.1194/jlr.p090647] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 05/29/2019] [Indexed: 12/26/2022] Open
Abstract
APOB, APOC3, and APOE and apolipoprotein-defined lipoprotein subclasses (ADLSs; based on qualitative apolipoprotein complement) have been associated with dyslipidemia and CVD. Our main objective was to define associations of serum apolipoproteins and ADLSs with "any CVD" and "major atherosclerotic cardiovascular events" (MACEs) in a prospective study of T1D. Serum apolipoproteins and ADLSs (14 biomarkers in total) were measured in sera (obtained between 1997 and 2000) from a subset (n = 465) of the Epidemiology of Diabetes Interventions and Complications cohort. Prospective associations of "any CVD" (myocardial infarction, stroke, confirmed angina, silent myocardial infarction, revascularization, or congestive heart failure) and MACEs (fatal or nonfatal myocardial infarction or stroke), over 5,943 and 6,180 patient-years follow-up, respectively, were investigated using Cox proportional hazards models that were unadjusted and adjusted for risk factors. During 15 years of follow-up, 50 "any CVD" events and 24 MACEs occurred. Nominally significant positive univariate associations with "any CVD" were APOB, APOC3 and its subfractions [heparin precipitate, heparin-soluble (HS)], and ADLS-defined Lp-B. In adjusted analyses, APOC3-HS remained nominally significant. Nominally significant positive univariate associations with MACEs were APOC3 and its subfractions and Lp-B:C; those with total APOC3 and APOC3-HS persisted in adjusted analyses. However, these associations did not reach significance after adjusting for multiple testing. There were no significant associations of APOA1, APOA2, APOE, or other ADLSs with either "any CVD" or MACEs. These hypothesis-generating data suggest that total serum APOC3 and APOC3 in HDL are potentially important predictive biomarkers for any CVD and MACEs in adults with T1D.
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Affiliation(s)
- Arpita Basu
- Department of Kinesiology and Nutrition Sciences, University of Nevada, Las Vegas, Las Vegas, NV
| | - Ionut Bebu
- The Biostatistics Center Milken Institute School of Public Health, The George Washington University, Rockville, MD
| | - Alicia J Jenkins
- NHMRC Clinical Trials Centre University of Sydney, Camperdown, Sydney, Australia
| | - Julie A Stoner
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Ying Zhang
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Richard L Klein
- Division of Endocrinology Medical University of South Carolina, Charleston, SC.,The Ralph H. Johnson Veterans Affairs Medical Center Charleston, SC
| | - Maria F Lopes-Virella
- Division of Endocrinology Medical University of South Carolina, Charleston, SC.,The Ralph H. Johnson Veterans Affairs Medical Center Charleston, SC
| | - W Timothy Garvey
- Department of Nutrition Sciences, University of Alabama at Birmingham and the Birmingham Veterans Affairs Medical Center, Birmingham, AL
| | - Matthew J Budoff
- Division of Cardiology Los Angeles Biomedical Research Institute, Torrance, CA
| | | | - Timothy J Lyons
- Division of Endocrinology Medical University of South Carolina, Charleston, SC
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36
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Aroner SA, Furtado JD, Sacks FM, Tsai MY, Mukamal KJ, McClelland RL, Jensen MK. Apolipoprotein C-III and its defined lipoprotein subspecies in relation to incident diabetes: the Multi-Ethnic Study of Atherosclerosis. Diabetologia 2019; 62:981-992. [PMID: 30949716 DOI: 10.1007/s00125-019-4847-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 02/07/2019] [Indexed: 01/15/2023]
Abstract
AIMS/HYPOTHESIS Apolipoprotein C-III (apoC-III) is a small proinflammatory protein that may play a key role in diabetes pathophysiology. However, prior observational studies have been limited to predominantly white populations, and the biological links between apoC-III and diabetes, particularly the role of apoC-III on specific lipoprotein particles, are not yet well understood. We therefore investigated associations of total apoC-III and apoC-III-defined lipoprotein subspecies with incident diabetes and glucose metabolism measures in a multi-ethnic cohort. METHODS For the current analyses, baseline (2000-2002) plasma total apoC-III and apolipoprotein A-I concentrations of HDL containing or lacking apoC-III were newly measured via sandwich ELISA in 4579 participants from the Multi-Ethnic Study of Atherosclerosis. Multivariable Cox regression was used to examine associations of apolipoproteins with incident diabetes until early 2012 (567 cases), and linear mixed models were used to estimate associations with longitudinally assessed continuous measures of glucose metabolism. Similar exploratory analyses of plasma apolipoprotein B concentrations of LDL and VLDL containing or lacking apoC-III were performed in a subset of participants (LDL, n = 1545; VLDL, n = 1526). RESULTS In the overall population, elevated total apoC-III concentrations were associated with a higher rate of diabetes (top vs bottom quintile, HR 1.88; 95% CI 1.42, 2.47; ptrend = 0.0002). ApoC-III-defined HDL subspecies displayed opposing associations with incidence of diabetes (p for heterogeneity = 0.02). While HDL lacking apoC-III was inversely associated with incidence of diabetes (top vs bottom quintile, HR 0.66; 95% CI 0.46, 0.93; ptrend = 0.002), HDL containing apoC-III was not associated (HR 1.11; 95% CI 0.78, 1.58; ptrend = 0.61). Similarly, only HDL lacking apoC-III was beneficially associated with plasma glucose (ptrend = 0.003), HbA1c (ptrend = 0.04) and insulin sensitivity (ptrend < 0.0001), and higher HDL containing apoC-III was associated with lower insulin sensitivity (ptrend = 0.04). Neither of the apoC-III-defined LDL subspecies was associated with incident diabetes, while VLDL was more strongly associated with the incidence of diabetes when it lacked apoC-III. Further adjustment for plasma triacylglycerols as a potential intermediate attenuated the associations of total apoC-III and apoC-III-defined lipoprotein subspecies. No statistically significant differences were observed across racial/ethnic groups. CONCLUSIONS/INTERPRETATION Our findings in a multi-ethnic population support the involvement of apoC-III in the development of diabetes, potentially through its association with circulating triacylglycerols. The presence of apoC-III on HDL also diminished the protective association of HDL with incident diabetes. Further investigation of apoC-III and apoC-III-defined HDL subspecies may inform the development of novel diabetes treatment and prevention strategies.
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Affiliation(s)
- Sarah A Aroner
- Department of Nutrition, Harvard T.H. Chan School of Public Health, 655 Huntington Avenue, Boston, MA, 02115, USA.
| | - Jeremy D Furtado
- Department of Nutrition, Harvard T.H. Chan School of Public Health, 655 Huntington Avenue, Boston, MA, 02115, USA
| | - Frank M Sacks
- Department of Nutrition, Harvard T.H. Chan School of Public Health, 655 Huntington Avenue, Boston, MA, 02115, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Michael Y Tsai
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Kenneth J Mukamal
- Division of General Medicine and Primary Care, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | | | - Majken K Jensen
- Department of Nutrition, Harvard T.H. Chan School of Public Health, 655 Huntington Avenue, Boston, MA, 02115, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
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Ramms B, Patel S, Nora C, Pessentheiner AR, Chang MW, Green CR, Golden GJ, Secrest P, Krauss RM, Metallo CM, Benner C, Alexander VJ, Witztum JL, Tsimikas S, Esko JD, Gordts PLSM. ApoC-III ASO promotes tissue LPL activity in the absence of apoE-mediated TRL clearance. J Lipid Res 2019; 60:1379-1395. [PMID: 31092690 PMCID: PMC6672034 DOI: 10.1194/jlr.m093740] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/10/2019] [Indexed: 11/21/2022] Open
Abstract
Hypertriglyceridemia results from accumulation of triglyceride (TG)-rich lipoproteins (TRLs) in the circulation and is associated with increased CVD risk. ApoC-III is an apolipoprotein on TRLs and a prominent negative regulator of TG catabolism. We recently established that in vivo apoC-III predominantly inhibits LDL receptor-mediated and LDL receptor-related protein 1-mediated hepatic TRL clearance and that apoC-III-enriched TRLs are preferentially cleared by syndecan-1 (SDC1). In this study, we determined the impact of apoE, a common ligand for all three receptors, on apoC-III metabolism using apoC-III antisense oligonucleotide (ASO) treatment in mice lacking apoE and functional SDC1 (Apoe−/−Ndst1f/fAlb-Cre+). ApoC-III ASO treatment significantly reduced plasma TG levels in Apoe−/−Ndst1f/fAlb-Cre+ mice without reducing hepatic VLDL production or improving hepatic TRL clearance. Further analysis revealed that apoC-III ASO treatment lowered plasma TGs in Apoe−/−Ndst1f/fAlb-Cre+ mice, which was associated with increased LPL activity in white adipose tissue in the fed state. Finally, clinical data confirmed that ASO-mediated lowering of APOC-III via volanesorsen can reduce plasma TG levels independent of the APOE isoform genotype. Our data indicate that apoE determines the metabolic impact of apoC-III as we establish that apoE is essential to mediate inhibition of TRL clearance by apoC-III and that, in the absence of functional apoE, apoC-III inhibits tissue LPL activity.
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Affiliation(s)
- Bastian Ramms
- Departments of Cellular and Molecular Medicine,University of California, San Diego, La Jolla, CA.,Medicine, University of California, San Diego, La Jolla, CA.,Department of Chemistry, Biochemistry I, Bielefeld University, Bielefeld, Germany
| | - Sohan Patel
- Medicine, University of California, San Diego, La Jolla, CA
| | - Chelsea Nora
- Medicine, University of California, San Diego, La Jolla, CA
| | | | - Max W Chang
- Departments of Cellular and Molecular Medicine,University of California, San Diego, La Jolla, CA
| | - Courtney R Green
- Bioengineering, University of California, San Diego, La Jolla, CA
| | - Gregory J Golden
- Departments of Cellular and Molecular Medicine,University of California, San Diego, La Jolla, CA.,Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA
| | - Patrick Secrest
- Departments of Cellular and Molecular Medicine,University of California, San Diego, La Jolla, CA
| | | | | | - Christopher Benner
- Departments of Cellular and Molecular Medicine,University of California, San Diego, La Jolla, CA
| | | | | | | | - Jeffrey D Esko
- Departments of Cellular and Molecular Medicine,University of California, San Diego, La Jolla, CA.,Glycobiology Research and Training Center, University of California, San Diego, La Jolla, CA
| | - Philip L S M Gordts
- Medicine, University of California, San Diego, La Jolla, CA .,Bioengineering, University of California, San Diego, La Jolla, CA
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Vahdat Lasemi F, Mahjoubin Tehran M, Aghaee-Bakhtiari SH, Jalili A, Jaafari MR, Sahebkar A. Harnessing nucleic acid-based therapeutics for atherosclerotic cardiovascular disease: state of the art. Drug Discov Today 2019; 24:1116-1131. [PMID: 30980904 DOI: 10.1016/j.drudis.2019.04.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/16/2019] [Accepted: 04/05/2019] [Indexed: 12/19/2022]
Abstract
Dyslipidemia is one of the major but modifiable risk factors for atherosclerotic cardiovascular disease (ACVD). Despite the accessibility of statins and other lipid-lowering drugs, the burden of ACVD is still high globally, highlighting the need for new therapeutic approaches. Nucleic acid-based technologies, including antisense oligonucleotides (ASOs), small interfering (si)RNAs, miRNAs, and decoys, are emerging therapeutic modalities for the treatment of ACVD. These technologies aim to degrade gene mRNA transcripts to decrease the levels of atherogenic lipoproteins. Using gene-silencing approaches, the levels of atherogenic lipoproteins can be decreased by targeting proteins that have key roles in lipoprotein metabolism. Here, we highlight preclinical and clinical findings using these approaches for the development of novel therapies against ACVD.
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Affiliation(s)
- Fatemeh Vahdat Lasemi
- Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Mahjoubin Tehran
- Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Hamid Aghaee-Bakhtiari
- Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Bioinformatics Research Group, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amin Jalili
- Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Reza Jaafari
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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39
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Christopoulou E, Tsimihodimos V, Filippatos T, Elisaf M. Apolipoprotein CIII and diabetes. Is there a link? Diabetes Metab Res Rev 2019; 35:e3118. [PMID: 30557902 DOI: 10.1002/dmrr.3118] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 12/09/2018] [Accepted: 12/11/2018] [Indexed: 12/24/2022]
Abstract
Apolipoprotein CIII (ApoCIII), a small protein that resides on the surface of lipoprotein particles, is a key regulator of triglyceride metabolism. The inhibition of lipoprotein lipase (LPL), the increased assembly and secretion of very low-density lipoproteins (VLDL) and the decreased reuptake of triglyceride-rich lipoproteins (TRLs) by the liver are mechanisms associating elevated serum ApoCIII levels and hypertriglyceridemia. ApoCIII concentration is high in individuals with diabetes mellitus, indicating a possible positive correlation with impairment of glucose metabolism. The aim of this review (based on a Pubmed search until August 2018) is to present the possible mechanisms linking ApoCIII and deterioration of carbohydrate homeostasis. ApoCIII enhances pancreatic β-cells apoptosis via an increase of the cytoplasmic Ca2+ levels in the insulin-producing cells. In addition, overexpression of ApoCIII enhances non-alcoholic fatty liver disease and exacerbates inflammatory pathways in skeletal muscles, affecting insulin signalling and thereby inducing insulin resistance. Moreover, recent studies reveal a possible mechanism of body weight increase and glucose production through a potential ApoCIII-induced LPL inhibition in the hypothalamus. Also, the presence of ApoCIII on the surface of high-density lipoprotein particles is associated with impairment of their antiglycemic and atheroprotective properties. Modulating ApoCIII may be a potent therapeutic approach to manage hypertriglyceridemia and improve carbohydrate metabolism.
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Affiliation(s)
- Eliza Christopoulou
- Department of Internal Medicine, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Vasilios Tsimihodimos
- Department of Internal Medicine, School of Medicine, University of Ioannina, Ioannina, Greece
| | - Theodosios Filippatos
- Department of Internal Medicine, School of Medicine, University of Crete, Heraklion, Greece
| | - Moses Elisaf
- Department of Internal Medicine, School of Medicine, University of Ioannina, Ioannina, Greece
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Kristiansen MNB, Veidal SS, Christoffersen C, Jelsing J, Rigbolt KTG. Molecular Characterization of Microvesicular and Macrovesicular Steatosis Shows Widespread Differences in Metabolic Pathways. Lipids 2019; 54:109-115. [DOI: 10.1002/lipd.12121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/20/2018] [Accepted: 12/23/2018] [Indexed: 01/20/2023]
Affiliation(s)
- Maria N. B. Kristiansen
- Gubra Aps, Hørsholm Kongevej 11B 2970 Hørsholm Denmark
- Department of Biomedical Sciences, Faculty of Health and Medical SciencesUniversity of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen Denmark
| | | | - Christina Christoffersen
- Department of Biomedical Sciences, Faculty of Health and Medical SciencesUniversity of Copenhagen, Blegdamsvej 3B, 2200 Copenhagen Denmark
- Department of Clinical BiochemistryRigshospitalet and Bispebjerg Hospital, Blegdamsvej 9, Copenhagen 2200 Denmark
| | - Jacob Jelsing
- Gubra Aps, Hørsholm Kongevej 11B 2970 Hørsholm Denmark
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Murayama A, Saitoh H, Takeuchi A, Yamada N, Matsumura T, Shiina M, Muramatsu M, Wakita T, Imawari M, Kato T. Vitamin D derivatives inhibit hepatitis C virus production through the suppression of apolipoprotein. Antiviral Res 2018; 160:55-63. [PMID: 30339849 DOI: 10.1016/j.antiviral.2018.10.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/21/2018] [Accepted: 10/14/2018] [Indexed: 01/28/2023]
Abstract
Supplementation with vitamin D (VD) has been reported to improve the efficacy of interferon-based therapy for chronic hepatitis C. We found that 25-hydroxyvitamin D3 (25-(OH)D3), one of the metabolites of VD, has antiviral effects by inhibiting the infectious virus production of the hepatitis C virus (HCV). In this study, to clarify the underlying mechanisms of the anti-HCV effects, we searched VD derivatives that have anti-HCV effects and identified the common target molecule in the HCV life cycle by using an HCV cell culture system. After infection of Huh-7.5.1 cells with cell culture-generated HCV, VD derivatives were added to culture media, and the propagation of HCV was assessed by measuring the HCV core antigen levels in culture media and cell lysates. To determine the step in the HCV life cycle affected by these compounds, the single-cycle virus production assay was used with a CD81-negative cell line. Of the 14 structural derivatives of VD, an anti-HCV effect was detected in 9 compounds. Cell viability was not affected by these effective compounds. The 2 representative VD derivatives inhibited the infectious virus production in the single-cycle virus production assay. Treatment with these compounds and 25-(OH)D3 suppressed the expression of apolipoprotein A1 and C3, which are known to be involved in infectious virus production of HCV, and the knockdown of these apolipoproteins reduced infectious virus production. In conclusion, we identified several compounds with anti-HCV activity by screening VD derivatives. These compounds reduce the infectious virus production of HCV by suppressing the expression of apolipoproteins in host cells.
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Affiliation(s)
- Asako Murayama
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hiroshi Saitoh
- Teijin Institute for Bio-medical Research, Teijin Pharma Ltd., Tokyo, Japan
| | - Akiko Takeuchi
- Teijin Institute for Bio-medical Research, Teijin Pharma Ltd., Tokyo, Japan
| | - Norie Yamada
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takuya Matsumura
- Division of Gastroenterology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Masaaki Shiina
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan; Department of Gastroenterology and Hepatology, Shin-Yurigaoka General Hospital, Kawasaki, Japan
| | - Masamichi Muramatsu
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Takaji Wakita
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan
| | - Michio Imawari
- Research Institute for Gastrointestinal and Liver Diseases, Shin-Yurigaoka General Hospital, Kawasaki, Japan
| | - Takanobu Kato
- Department of Virology II, National Institute of Infectious Diseases, Tokyo, Japan.
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42
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Lian J, Bahitham W, Panigrahi R, Nelson R, Li L, Watts R, Thiesen A, Lemieux MJ, Lehner R. Genetic variation in human carboxylesterase CES1 confers resistance to hepatic steatosis. Biochim Biophys Acta Mol Cell Biol Lipids 2018; 1863:688-699. [DOI: 10.1016/j.bbalip.2018.04.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 02/21/2018] [Accepted: 04/05/2018] [Indexed: 12/12/2022]
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Chan DC, Watts GF, Somaratne R, Wasserman SM, Scott R, Barrett PHR. Comparative Effects of PCSK9 (Proprotein Convertase Subtilisin/Kexin Type 9) Inhibition and Statins on Postprandial Triglyceride-Rich Lipoprotein Metabolism. Arterioscler Thromb Vasc Biol 2018; 38:1644-1655. [PMID: 29880491 PMCID: PMC6039422 DOI: 10.1161/atvbaha.118.310882] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 05/09/2018] [Indexed: 11/20/2022]
Abstract
Supplemental Digital Content is available in the text. Objective— Inhibition of PCSK9 (proprotein convertase subtilisin/kexin type 9) and statins are known to lower plasma LDL (low-density lipoprotein)-cholesterol concentrations. However, the comparative effects of these treatments on the postprandial metabolism of TRLs (triglyceride-rich lipoproteins) remain to be investigated. Approach and Results— We performed a 2-by-2 factorial trial of the effects of 8 weeks of subcutaneous evolocumab (420 mg every 2 weeks) and atorvastatin (80 mg daily) on postprandial TRL metabolism in 80 healthy, normolipidemic men after ingestion of an oral fat load. We evaluated plasma total and incremental area under the curves for triglycerides, apo (apolipoprotein)B-48, and VLDL (very-LDL)-apoB-100. We also examined the kinetics of apoB-48 using intravenous D3-leucine administration, mass spectrometry, and multicompartmental modeling. Atorvastatin and evolocumab independently lowered postprandial VLDL-apoB-100 total area under the curves (P<0.001). Atorvastatin, but not evolocumab, reduced fasting plasma apoB-48, apoC-III, and angiopoietin-like 3 concentrations (P<0.01), as well as postprandial triglyceride and apoB-48 total area under the curves (P<0.001) and the incremental area under the curves for plasma triglycerides, apoB-48, and VLDL-apoB-100 (P<0.01). Atorvastatin also independently increased TRL apoB-48 fractional catabolic rate (P<0.001) and reduced the number of apoB-48–containing particles secreted in response to the fat load (P<0.01). In contrast, evolocumab did not significantly alter the kinetics of apoB-48. Conclusions— In healthy, normolipidemic men, atorvastatin decreased fasting and postprandial apoB-48 concentration by accelerating the catabolism of apoB-48 particles and reducing apoB-48 particle secretion in response to a fat load. Inhibition of PCSK9 with evolocumab had no significant effect on apoB-48 metabolism.
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Affiliation(s)
- Dick C Chan
- From Schools of Medicine (D.C.C., G.F.W.).,Biomedical Science (D.C.C., P.H.R.B.)
| | - Gerald F Watts
- From Schools of Medicine (D.C.C., G.F.W.) .,the Lipid Disorders Clinic, Department of Cardiology, Royal Perth Hospital, University of Western Australia (G.F.W.)
| | - Ransi Somaratne
- Amgen Inc, Thousand Oaks, CA (S.M.W., R. Somaratne, R. Scott)
| | | | - Rob Scott
- Amgen Inc, Thousand Oaks, CA (S.M.W., R. Somaratne, R. Scott)
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Abstract
PURPOSE OF REVIEW Apolipoprotein (apo) C-III is a key player in triglyceride-rich lipoprotein metabolism and strongly associated with elevated plasma triglyceride levels. Several new studies added important insights on apoC-III and its physiological function confirming its promise as a valid therapeutic target. RECENT FINDINGS APOC3 is expressed in liver and intestine and regulates triglyceride-rich lipoprotein (TRL) catabolism and anabolism. The transcriptional regulation in both organs requires different regulatory elements. Clinical and preclinical studies established that apoC-III raises plasma triglyceride levels predominantly by inhibiting hepatic TRL clearance. Mechanistic insights into missense variants indicate accelerated renal clearance of apoC-III variants resulting in enhanced TRL catabolism. In contrast, an APOC3 gain-of-function variant enhances de novo lipogenesis and hepatic TRL production. Multiple studies confirmed the correlation between increased apoC-III levels and cardiovascular disease. This has opened up new therapeutic avenues allowing targeting of specific apoC-III properties in triglyceride metabolism. SUMMARY Novel in vivo models and APOC3 missense variants revealed unique mechanisms by which apoC-III inhibits TRL catabolism. Clinical trials with Volanesorsen, an APOC3 antisense oligonucleotide, report very promising lipid-lowering outcomes. However, future studies will need to address if acute apoC-III lowering will have the same clinical benefits as a life-long reduction.
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Affiliation(s)
- Bastian Ramms
- Department of Cellular and Molecular Medicine
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, La Jolla, San Diego, California, USA
- Department of Chemistry, Biochemistry I, Bielefeld University, Bielefeld, Germany
| | - Philip L S M Gordts
- Department of Cellular and Molecular Medicine
- Division of Endocrinology and Metabolism, Department of Medicine, University of California, San Diego, La Jolla, San Diego, California, USA
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Kim K, Goldberg IJ, Graham MJ, Sundaram M, Bertaggia E, Lee SX, Qiang L, Haeusler RA, Metzger D, Chambon P, Yao Z, Ginsberg HN, Pajvani UB. γ-Secretase Inhibition Lowers Plasma Triglyceride-Rich Lipoproteins by Stabilizing the LDL Receptor. Cell Metab 2018; 27:816-827.e4. [PMID: 29576536 PMCID: PMC5884729 DOI: 10.1016/j.cmet.2018.02.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 12/14/2017] [Accepted: 02/14/2018] [Indexed: 12/31/2022]
Abstract
Excess plasma triglycerides (TGs) are a key component of obesity-induced metabolic syndrome. We have shown that γ-secretase inhibitor (GSI) treatment improves glucose tolerance due to inhibition of hepatic Notch signaling but found additional Notch-independent reduction of plasma TG-rich lipoproteins (TRLs) in GSI-treated, as well as hepatocyte-specific, γ-secretase knockout (L-Ncst) mice, which suggested a primary effect on hepatocyte TRL uptake. Indeed, we found increased VLDL and LDL particle uptake in L-Ncst hepatocytes and Ncst-deficient hepatoma cells, in part through reduced γ-secretase-mediated low-density lipoprotein receptor (LDLR) cleavage and degradation. To exploit this novel finding, we generated a liver-selective Nicastrin ASO, which recapitulated glucose and lipid improvements of L-Ncst mice, with increased levels of hepatocyte LDLR. Collectively, these results identify the role of hepatic γ-secretase to regulate LDLR and suggest that liver-specific GSIs may simultaneously improve multiple aspects of the metabolic syndrome.
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Affiliation(s)
- KyeongJin Kim
- Department of Medicine, Columbia University, New York, NY, USA
| | - Ira J Goldberg
- Department of Medicine, New York University, New York, NY, USA
| | | | - Meenakshi Sundaram
- Department of Biochemistry, Microbiology and Immunology, Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON, Canada
| | - Enrico Bertaggia
- Departments of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Samuel X Lee
- Departments of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Li Qiang
- Departments of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | - Rebecca A Haeusler
- Departments of Pathology and Cell Biology, Columbia University, New York, NY, USA
| | | | | | - Zemin Yao
- Department of Biochemistry, Microbiology and Immunology, Ottawa Institute of Systems Biology, University of Ottawa, Ottawa, ON, Canada
| | | | - Utpal B Pajvani
- Department of Medicine, Columbia University, New York, NY, USA.
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Aroner SA, Koch M, Mukamal KJ, Furtado JD, Stein JH, Tattersall MC, McClelland RL, Jensen MK. High-Density Lipoprotein Subspecies Defined by Apolipoprotein C-III and Subclinical Atherosclerosis Measures: MESA (The Multi-Ethnic Study of Atherosclerosis). J Am Heart Assoc 2018. [PMID: 29540426 PMCID: PMC5907551 DOI: 10.1161/jaha.117.007824] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background Apolipoprotein C‐III (apoC‐III), a small proinflammatory protein present on 6% to 7% of high‐density lipoprotein (HDL) particles, defines a subspecies of HDL adversely associated with coronary heart disease in primarily white cohorts. In a multi‐ethnic population free of clinical cardiovascular disease, we evaluated the relationship between apoC‐III–defined HDL subspecies and subclinical markers of atherosclerotic pathology. Methods and Results We investigated cross‐sectional associations between apolipoprotein A‐I concentrations of apoC‐III–defined HDL subspecies, measured via ELISA and imaging measures of subclinical atherosclerosis, among 4659 participants in the MESA (The Multi‐Ethnic Study of Atherosclerosis) at baseline (2000–2002). HDL particles containing and lacking apoC‐III were divergently associated with coronary artery calcification in women (P‐heterogeneity=0.002) but not in men (P‐heterogeneity=0.31) and with carotid plaque score (P‐heterogeneity=0.02) and intima‐media thickness (P‐heterogeneity=0.06) in the overall study population. HDL lacking apoC‐III was inversely associated with all outcome measures (coronary artery calcification, women: odds ratio per SD=0.81 [95% confidence interval [CI], 0.73–0.90]; carotid plaque, overall: odds ratio per SD=0.92 [95% CI, 0.84–1.00]; intima‐media thickness, overall: mean difference per SD=−14.0 µm [95% CI, −21.1 to −6.7 μm]), whereas HDL containing apoC‐III was positively associated (coronary artery calcification, women: odds ratio=1.10 [95% CI, 0.99–1.22]; plaque, overall: odds ratio=1.10 [95% CI, 1.01–1.19]) or unassociated. Neither total HDL nor HDL subspecies was associated with changes in subclinical atherosclerosis measures up to 10 years later. Conclusions The presence of apoC‐III defined a subspecies of HDL not inversely associated with baseline measures of subclinical atherosclerosis, supporting a role of apoC‐III in the pathophysiology of cardiovascular disease.
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Affiliation(s)
- Sarah A Aroner
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Manja Koch
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Kenneth J Mukamal
- Division of General Medicine and Primary Care, Beth Israel Deaconess Medical Center, Boston, MA
| | - Jeremy D Furtado
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
| | - James H Stein
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Matthew C Tattersall
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | | | - Majken K Jensen
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA .,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
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Ma J, Matkar S, He X, Hua X. FOXO family in regulating cancer and metabolism. Semin Cancer Biol 2018; 50:32-41. [PMID: 29410116 DOI: 10.1016/j.semcancer.2018.01.018] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 01/28/2018] [Accepted: 01/31/2018] [Indexed: 01/07/2023]
Abstract
FOXO proteins are a sub-group of a superfamily of forkhead box (FOX)-containing transcription factors (TFs). FOXOs play an important role in regulating a plethora of biological activities ranging from development, cell signaling, and tumorigenesis to cell metabolism. Here we mainly focus on reviewing the role of FOXOs in regulating tumor and metabolism. Moreover, how crosstalk among various pathways influences the function of FOXOs will be reviewed. Further, the paradoxical role for FOXOs in controlling the fate of cancer and especially resistance/sensitivity of cancer to the class of drugs that target PI3K/AKT will also be reviewed. Finally, how FOXOs regulate crosstalk between common cancer pathways and cell metabolism pathways, and how these crosstalks affect the fate of the cancer will be discussed.
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Affiliation(s)
- Jian Ma
- Department of Cancer Biology, Abramson Family Cancer Research Institute, Abramson Cancer Center, Institute of Diabetes, Obesity, and Metabolism (IDOM), University of Pennsylvania Perelman School of Medicine, 421 Curie Blvd., Philadelphia, PA 19104, USA; State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 678 Haping Road, Harbin, Heilongjiang 150069, China; College of Life Science, Northeast Forestry University, 26 Hexing Road, Harbin, Heilongjiang 150040, China.
| | - Smita Matkar
- Department of Cancer Biology, Abramson Family Cancer Research Institute, Abramson Cancer Center, Institute of Diabetes, Obesity, and Metabolism (IDOM), University of Pennsylvania Perelman School of Medicine, 421 Curie Blvd., Philadelphia, PA 19104, USA.
| | - Xin He
- Department of Cancer Biology, Abramson Family Cancer Research Institute, Abramson Cancer Center, Institute of Diabetes, Obesity, and Metabolism (IDOM), University of Pennsylvania Perelman School of Medicine, 421 Curie Blvd., Philadelphia, PA 19104, USA.
| | - Xianxin Hua
- Department of Cancer Biology, Abramson Family Cancer Research Institute, Abramson Cancer Center, Institute of Diabetes, Obesity, and Metabolism (IDOM), University of Pennsylvania Perelman School of Medicine, 421 Curie Blvd., Philadelphia, PA 19104, USA.
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Benes LB, Brandt EJ, Davidson MH. Advances in diagnosis and potential therapeutic options for familial chylomicronemia syndrome. Expert Opin Orphan Drugs 2018. [DOI: 10.1080/21678707.2018.1419863] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Lane B. Benes
- Section of Cardiology, The University of Chicago Medicine, Chicago, IL, USA
| | - Eric J. Brandt
- Section of Cardiology, Yale University School of Medicine, New Haven, CT, USA
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Alvi SS, Ansari IA, Ahmad MK, Iqbal J, Khan MS. Lycopene amends LPS induced oxidative stress and hypertriglyceridemia via modulating PCSK-9 expression and Apo-CIII mediated lipoprotein lipase activity. Biomed Pharmacother 2017; 96:1082-1093. [DOI: 10.1016/j.biopha.2017.11.116] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 11/20/2017] [Accepted: 11/20/2017] [Indexed: 12/18/2022] Open
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Aroner SA, Yang M, Li J, Furtado JD, Sacks FM, Tjønneland A, Overvad K, Cai T, Jensen MK. Apolipoprotein C-III and High-Density Lipoprotein Subspecies Defined by Apolipoprotein C-III in Relation to Diabetes Risk. Am J Epidemiol 2017; 186:736-744. [PMID: 28520887 DOI: 10.1093/aje/kwx143] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 11/09/2016] [Indexed: 12/19/2022] Open
Abstract
Apolipoprotein C-III (apoC-III) is a potentially novel biomarker that may play an important role in the pathogenesis of diabetes, particularly when present on the surface of high-density lipoprotein (HDL). In a case-cohort study carried out among 434 incident diabetes cases occurring before 2007 and 3,101 noncases in the Danish Diet, Cancer, and Health Study, we examined associations of baseline (1993-1997) plasma concentrations of apoC-III and subspecies of HDL defined by the presence or absence of apoC-III with risk of diabetes using Cox regression. ApoC-III was strongly associated with risk of diabetes (for top quintile vs. bottom quintile, hazard ratio (HR) = 3.43, 95% confidence interval (CI): 1.75, 6.70; P-trend < 0.001). The cholesterol concentration of HDL (HDL cholesterol (HDL-C)) without apoC-III was inversely associated with risk of diabetes (HR = 0.48, 95% CI: 0.27, 0.85; P-trend = 0.002), more so than total HDL-C (HR = 0.60, 95% CI: 0.35, 1.03; P-trend = 0.04), whereas HDL-C with apoC-III was not associated (HR = 1.05, 95% CI: 0.50, 2.21; P-trend = 0.44) (for HDL-C with apoC-III vs. HDL-C without apoC-III, P-heterogeneity = 0.002). ApoC-III itself is a strong risk marker for diabetes, and its presence on HDL may impair the antidiabetogenic properties of HDL. ApoC-III has potential to be a therapeutic target for the prevention of diabetes.
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