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Conjugated Linoleic Acids Have Anti-Inflammatory Effects in Cultured Endothelial Cells. Int J Mol Sci 2023; 24:ijms24010874. [PMID: 36614314 PMCID: PMC9821047 DOI: 10.3390/ijms24010874] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 12/28/2022] [Accepted: 12/31/2022] [Indexed: 01/05/2023] Open
Abstract
Conjugated linoleic acid (CLA) isomers may have a role in preventing atherosclerosis through the modulation of inflammation, particularly of the endothelium. However, whether low concentrations of CLAs are able to affect basal unstimulated endothelial cell (EC) responses is not clear. The aim of this study was to evaluate the effects of two CLAs (cis-9, trans-11 (CLA9,11) and trans-10, cis-12 (CLA10,12)) on the basal inflammatory responses by ECs. EA.hy926 cells (HUVEC lineage) were cultured under standard conditions and exposed to individual CLAs for 48 h. Both CLAs were incorporated into ECs in a dose-dependent manner. CLA9,11 (1 μM) significantly decreased concentrations of MCP-1 (p < 0.05), IL-6 (p < 0.05), IL-8 (p < 0.01) and RANTES (p < 0.05) in the culture medium. CLA10,12 (10 μM) decreased the concentrations of MCP-1 (p < 0.05) and RANTES (p < 0.05) but increased the concentration of IL-6 (p < 0.001). At 10 μM both CLAs increased the relative expression of the NFκβ subunit 1 gene (p < 0.01 and p < 0.05, respectively), while decreasing the relative expression of PPARα (p < 0.0001), COX-2 (p < 0.0001) and IL-6 (p < 0.0001) genes. CLA10,12 increased the relative expression of the gene encoding IκK-β at 10 μM compared with CLA9,11 (p < 0.05) and increased the relative expression of the gene encoding IκBα at 1 and 10 μM compared with linoleic acid (both p < 0.05). Neither CLA affected the adhesion of monocytes to ECs. These results suggest that low concentrations of both CLA9,11 and CLA10,12 have modest anti-inflammatory effects in ECs. Thus, CLAs may influence endothelial function and the risk of vascular disease. Nevertheless, at these low CLA concentrations some pro-inflammatory genes are upregulated while others are downregulated, suggesting complex effects of CLAs on inflammatory pathways.
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Jiang F, Liu J, Du Z, Liu X, Shang X, Yu Y, Zhang T. Soybean meal peptides regulated membrane phase of giant unilamellar vesicles: A key role for bilayer amphipathic region localization. Food Res Int 2022; 162:111924. [DOI: 10.1016/j.foodres.2022.111924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/25/2022] [Accepted: 09/07/2022] [Indexed: 11/29/2022]
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Differential Inflammatory Responses in Cultured Endothelial Cells Exposed to Two Conjugated Linoleic Acids (CLAs) under a Pro-Inflammatory Condition. Int J Mol Sci 2022; 23:ijms23116101. [PMID: 35682781 PMCID: PMC9181016 DOI: 10.3390/ijms23116101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/21/2022] [Accepted: 05/26/2022] [Indexed: 12/04/2022] Open
Abstract
Conjugated linoleic acid (CLA) isomers have been shown to possess anti-atherosclerotic properties, which may be related to the downregulation of inflammatory pathways in different cell types, including endothelial cells (ECs). However, whether different CLA isomers have different actions is not entirely clear, with inconsistent reports to date. Furthermore, in cell culture studies, CLAs have often been used at fairly high concentrations. Whether lower concentrations of CLAs are able to affect EC responses is not clear. The aim of this study was to evaluate the effects of two CLAs (cis-9, trans-11 (CLA9,11) and trans-10, cis-12 (CLA10,12)) on the inflammatory responses of ECs. ECs (EA.hy926 cells) were cultured under standard conditions and exposed to CLAs (1 to 50 μM) for 48 h. Then, the cells were cultured for a further 6 or 24 h with tumour necrosis factor alpha (TNF-α, 1 ng/mL) as an inflammatory stimulant. ECs remained viable after treatments with 1 and 10 μM of each CLA, but not after treatment with 50 μM of CLA10,12. CLAs were incorporated into ECs in a concentration-dependent manner. CLA10,12 increased the levels of ICAM-1, IL-6, and RANTES in the culture medium, while CLA9,11 had null effects. Both CLAs (1 μM) decreased the appearance of NFκB1 mRNA, but only CLA9,11 maintained this downregulation at 10 μM. CLA10,12 had no effect on THP-1 cell adhesion to ECs while significantly decreasing the percentage of ECs expressing ICAM-1 and also levels of ICAM-1 expression per cell when used at 10 µM. Although CLA9,11 did not have any effect on ICAM-1 cell surface expression, it reduced THP-1 cell adhesion to the EA.hy926 cell monolayer at both concentrations. In summary, CLA10,12 showed some pro-inflammatory effects, while CLA9,11 exhibited null or anti-inflammatory effects. The results suggest that each CLA has different effects in ECs under a pro-inflammatory condition, highlighting the need to evaluate the effects of CLA isomers independently.
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Lipids in Pathophysiology and Development of the Membrane Lipid Therapy: New Bioactive Lipids. MEMBRANES 2021; 11:membranes11120919. [PMID: 34940418 PMCID: PMC8708953 DOI: 10.3390/membranes11120919] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/16/2021] [Accepted: 11/19/2021] [Indexed: 12/19/2022]
Abstract
Membranes are mainly composed of a lipid bilayer and proteins, constituting a checkpoint for the entry and passage of signals and other molecules. Their composition can be modulated by diet, pathophysiological processes, and nutritional/pharmaceutical interventions. In addition to their use as an energy source, lipids have important structural and functional roles, e.g., fatty acyl moieties in phospholipids have distinct impacts on human health depending on their saturation, carbon length, and isometry. These and other membrane lipids have quite specific effects on the lipid bilayer structure, which regulates the interaction with signaling proteins. Alterations to lipids have been associated with important diseases, and, consequently, normalization of these alterations or regulatory interventions that control membrane lipid composition have therapeutic potential. This approach, termed membrane lipid therapy or membrane lipid replacement, has emerged as a novel technology platform for nutraceutical interventions and drug discovery. Several clinical trials and therapeutic products have validated this technology based on the understanding of membrane structure and function. The present review analyzes the molecular basis of this innovative approach, describing how membrane lipid composition and structure affects protein-lipid interactions, cell signaling, disease, and therapy (e.g., fatigue and cardiovascular, neurodegenerative, tumor, infectious diseases).
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Valenzuela CA, Baker EJ, De Souza CO, Miles EA, Calder PC. Differential Effects of Ruminant and Industrial 18-Carbon trans-Monounsaturated Fatty Acids ( trans Vaccenic and Elaidic) on the Inflammatory Responses of an Endothelial Cell Line. Molecules 2021; 26:molecules26195834. [PMID: 34641380 PMCID: PMC8512072 DOI: 10.3390/molecules26195834] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 12/24/2022] Open
Abstract
Endothelial dysfunction and inflammation are recognised factors in the development of atherosclerosis. Evidence suggests that intake of industrial trans fatty acids (TFAs) promotes endothelial dysfunction, while ruminant TFAs may have the opposite effect. The aim of this study was to compare the effects of elaidic acid (EA (18:1n-9t); an industrially produced TFA) and trans vaccenic acid (TVA (18:1n-7t); a natural TFA found in ruminant milk and meat) on inflammatory responses of endothelial cells (ECs). ECs (EA.hy926 cells) were cultured under standard conditions and exposed to TFAs (1 to 50 μM) for 48 h. Then, the cells were cultured for a further 6 or 24 h with tumour necrosis factor alpha (TNF-α, 1 ng/mL) as an inflammatory stimulant. ECs remained viable after treatments. TFAs were incorporated into ECs in a dose-dependent manner. Preincubation with EA (50 µM) increased production of MCP-1, RANTES, and IL-8 in response to TNF-α, while preincubation with TVA (1 µM) decreased production of ICAM-1 and RANTES in response to TNF-α. Preincubation with EA (50 µM) upregulated toll-like receptor 4 and cyclooxygenase 2 gene expression in response to TNF-α. In contrast, preincubation with TVA (1 µM) downregulated TNF-α induced nuclear factor kappa B subunit 1 gene expression. Preincubation of ECs with EA (50 µM) increased THP-1 monocyte adhesion. In contrast, preincubation of ECs with TVA (1 µM) reduced THP-1 monocyte adhesion, while preincubation of ECs with TVA (50 µM) decreased the level of surface expression of ICAM-1 seen following TNF-α stimulation. The results suggest that TVA has some anti-inflammatory properties, while EA enhances the response to an inflammatory stimulus. These findings suggest differential effects induced by the TFAs tested, fitting with the idea that industrial TFAs and ruminant TFAs can have different and perhaps opposing biological actions in an inflammatory context.
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Affiliation(s)
- Carina A. Valenzuela
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; (E.J.B.); (C.O.D.S.); (E.A.M.); (P.C.C.)
- School of Nutrition, Faculty of Pharmacy, University of Valparaíso, Playa Ancha, Valparaíso 2360102, Chile
- Correspondence:
| | - Ella J. Baker
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; (E.J.B.); (C.O.D.S.); (E.A.M.); (P.C.C.)
| | - Camila O. De Souza
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; (E.J.B.); (C.O.D.S.); (E.A.M.); (P.C.C.)
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo CEP 05508-000, SP, Brazil
| | - Elizabeth A. Miles
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; (E.J.B.); (C.O.D.S.); (E.A.M.); (P.C.C.)
| | - Philip C. Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK; (E.J.B.); (C.O.D.S.); (E.A.M.); (P.C.C.)
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton SO16 6YD, UK
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Jiang F, Wang Y, Liu C, Zhang B, Wang E, Liu J, Zhang T. Egg White-Derived Peptides QVPLW and LCAY Inhibit the Activity of Angiotensin I-Converting Enzyme in Human Umbilical Vein Endothelial Cells by Suppressing Its Recruitment into Lipid Rafts. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:10350-10357. [PMID: 34448567 DOI: 10.1021/acs.jafc.1c04512] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As a membrane protein, the activity of angiotensin I-converting enzyme (ACE) can be modulated via regulation of its localization in the cell membrane with food-derived peptides. This study aimed to explore the effect of egg white peptides on the cell membrane localization and activity of ACE in human umbilical vein endothelial cells. ACE activity was found to be related to lipid rafts by using methyl-β-cyclodextrin (MβCD). QVPLW and LCAY can inhibit ACE activity by preventing ACE recruitment into lipid rafts, with in situ IC50 values of 238.46 ± 11.35 μM and 31.55 ± 2.64 μM in the control groups, as well as 45.43 ± 6.15 μM and 34.63 ± 1.59 μM in the MβCD groups, respectively. QVPLW and LCAY may alter the cell membrane properties, including the fluidity, potential, and permeability, and eventually promote the transposition of ACE.
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Affiliation(s)
- Feng Jiang
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Ying Wang
- College of Food Engineering, Jilin Engineering Normal University, Changchun 130052, People's Republic of China
| | - Chang Liu
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Biying Zhang
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Erlei Wang
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Jingbo Liu
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
| | - Ting Zhang
- Jilin Provincial Key Laboratory of Nutrition and Functional Food and College of Food Science and Engineering, Jilin University, Changchun 130062, People's Republic of China
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Eighteen‑carbon trans fatty acids and inflammation in the context of atherosclerosis. Prog Lipid Res 2019; 76:101009. [PMID: 31669459 DOI: 10.1016/j.plipres.2019.101009] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 09/17/2019] [Accepted: 09/19/2019] [Indexed: 12/12/2022]
Abstract
Endothelial dysfunction is a pro-inflammatory state characterized by chronic activation of the endothelium, which leads to atherosclerosis and cardiovascular disease (CVD). Intake of trans fatty acids (TFAs) is associated with an increased risk of CVD. This risk is usually associated with industrial TFAs (iTFAs) rather than ruminant TFAs (rTFAs); however it is not clear how specific TFA isomers differ in their biological activity and mechanisms of action with regard to inflammation. Here we review the literature on 18‑carbon TFAs, including the research associating their intake or levels with CVD and studies relating 18‑carbon TFA exposure to modulation of inflammatory processes. The evidence associating iTFAs with CVD risk factors is fairly consistent and studies in humans usually show a relation between iTFAs and higher levels of inflammatory markers. In contrast, studies in humans, animals and in vitro suggest that rTFAs have null or mildly beneficial effects in cardiovascular health, metabolic parameters and inflammatory markers, although the evidence is not always consistent. More studies are needed to better identify the beneficial and detrimental effects of the different TFAs, including those with 18 carbons.
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Baranger K, van Gijsel-Bonnello M, Stephan D, Carpentier W, Rivera S, Khrestchatisky M, Gharib B, De Reggi M, Benech P. Long-Term Pantethine Treatment Counteracts Pathologic Gene Dysregulation and Decreases Alzheimer's Disease Pathogenesis in a Transgenic Mouse Model. Neurotherapeutics 2019; 16:1237-1254. [PMID: 31267473 PMCID: PMC6985318 DOI: 10.1007/s13311-019-00754-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
The low-molecular weight thiol pantethine, known as a hypolipidemic and hypocholesterolemic agent, is the major precursor of co-enzyme A. We have previously shown that pantethine treatment reduces amyloid-β (Aβ)-induced IL-1β release and alleviates pathological metabolic changes in primary astrocyte cultures. These properties of pantethine prompted us to investigate its potential benefits in vivo in the 5XFAD (Tg) mouse model of Alzheimer's disease (AD).1.5-month-old Tg and wild-type (WT) male mice were submitted to intraperitoneal administration of pantethine or saline control solution for 5.5 months. The effects of such treatments were investigated by performing behavioral tests and evaluating astrogliosis, microgliosis, Αβ deposition, and whole genome expression arrays, using RNAs extracted from the mice hippocampi. We observed that long-term pantethine treatment significantly reduced glial reactivity and Αβ deposition, and abrogated behavioral alteration in Tg mice. Moreover, the transcriptomic profiles revealed that after pantethine treatment, the expression of genes differentially expressed in Tg mice, and in particular those known to be related to AD, were significantly alleviated. Most of the genes overexpressed in Tg compared to WT were involved in inflammation, complement activation, and phagocytosis and were found repressed upon pantethine treatment. In contrast, pantethine restored the expression of a significant number of genes involved in the regulation of Αβ processing and synaptic activities, which were downregulated in Tg mice. Altogether, our data support a beneficial role for long-term pantethine treatment in preserving CNS crucial functions altered by Aβ pathogenesis in Tg mice and highlight the potential efficiency of pantethine to alleviate AD pathology.
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Affiliation(s)
- Kevin Baranger
- CNRS, INP, Inst Neurophysiopathol, Aix-Marseille Univ, Marseille, France
| | - Manuel van Gijsel-Bonnello
- CNRS, INP, Inst Neurophysiopathol, Aix-Marseille Univ, Marseille, France
- Present Address: MRC Protein Phosphorylation & Ubiquitylation Unit, Sir James Black Centre and School of Life Science - Division of Cell Signalling and Immunology, Welcome Trust Building, University of Dundee, Dundee, DD1 5EH UK
| | - Delphine Stephan
- CNRS, INP, Inst Neurophysiopathol, Aix-Marseille Univ, Marseille, France
| | - Wassila Carpentier
- Sorbonne Universités, UPMC Univ Paris 06, Inserm, UMS Omique, Plateforme Post-génomique de la Pitié-Salpêtrière (P3S), F-75013 Paris, France
| | - Santiago Rivera
- CNRS, INP, Inst Neurophysiopathol, Aix-Marseille Univ, Marseille, France
| | | | - Bouchra Gharib
- CNRS, INP, Inst Neurophysiopathol, Aix-Marseille Univ, Marseille, France
| | - Max De Reggi
- CNRS, INP, Inst Neurophysiopathol, Aix-Marseille Univ, Marseille, France
| | - Philippe Benech
- CNRS, INP, Inst Neurophysiopathol, Aix-Marseille Univ, Marseille, France
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Oshita T, Toh R, Shinohara M, Mori K, Irino Y, Nagao M, Hara T, Otake H, Ishida T, Hirata KI. Elevated Serum Elaidic Acid Predicts Risk of Repeat Revascularization After Percutaneous Coronary Intervention in Japan. Circ J 2019; 83:1032-1038. [PMID: 30867359 DOI: 10.1253/circj.cj-18-1175] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Trans-fatty acid (TFA) intake increases the risk of coronary artery disease (CAD). Our previous cross-sectional survey showed that middle-aged patients with CAD in Japan have elevated serum TFA. In this study, we longitudinally investigated whether elevated TFA is a risk factor in the secondary prevention of CAD for the same-age patients. Methods and Results: A total of 112 patients (age, 21-66 years) who underwent percutaneous coronary intervention were followed up for up to 2 years. Serum elaidic acid was measured using gas chromatography/mass spectrometry as a marker of TFA intake and divided into quartiles. The primary endpoint was ischemia-driven target lesion revascularization (TLR). The hazard ratio (HR) for TLR increased significantly with higher serum elaidic acid (P<0.01). The significant positive trend remained unchanged after adjusting for conventional lipid profile and bare-metal stent usage. In contrast, although triglycerides and low-density lipoprotein cholesterol were positively correlated with elaidic acid, they were not associated with TLR. On multivariable Cox proportional hazard analysis, elevated elaidic acid was independently associated with TLR risk after adjusting for conventional coronary risks (HR, 10.7, P<0.01). CONCLUSIONS Elevated elaidic acid is associated with higher TLR rate in middle-aged patients with CAD, suggesting that excessive TFA intake is becoming a serious health problem in Japan.
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Affiliation(s)
- Toshihiko Oshita
- Division of Cardiovascular Medicine, Kobe University Graduate School of Medicine
| | - Ryuji Toh
- Division of Evidence-based Laboratory Medicine, Kobe University Graduate School of Medicine
| | | | - Kenta Mori
- Department of General Internal Medicine, Kobe University Hospita
| | - Yasuhiro Irino
- Division of Evidence-based Laboratory Medicine, Kobe University Graduate School of Medicine
| | - Manabu Nagao
- Division of Cardiovascular Medicine, Kobe University Graduate School of Medicine
| | - Tetsuya Hara
- Division of Cardiovascular Medicine, Kobe University Graduate School of Medicine
| | - Hiromasa Otake
- Division of Cardiovascular Medicine, Kobe University Graduate School of Medicine
| | - Tatsuro Ishida
- Division of Cardiovascular Medicine, Kobe University Graduate School of Medicine
| | - Ken-Ichi Hirata
- Division of Cardiovascular Medicine, Kobe University Graduate School of Medicine.,Division of Evidence-based Laboratory Medicine, Kobe University Graduate School of Medicine
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10
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Qiu B, Wang Q, Liu W, Xu TC, Liu LN, Zong AZ, Jia M, Li J, Du FL. Biological effects of trans fatty acids and their possible roles in the lipid rafts in apoptosis regulation. Cell Biol Int 2018; 42:904-912. [PMID: 29500886 DOI: 10.1002/cbin.10958] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 02/24/2018] [Indexed: 12/25/2022]
Abstract
A large number of recent studies are focused on evaluating the mechanism of action of trans fatty acids (TFAs) on the progression of apoptosis. A strong positive association has been reported between TFA and coronary heart disease (CHD), obesity and nonalcoholic steatohepatitis and so on. The present study reviewed the biological effects of trans fatty acids (TFA) and their possible roles in lipid rafts in regulating apoptosis. The following aspects of TFA were included: the research about TFA and diseases affecting serum lipid levels, inducing system inflammation and immune response, and the correlation between TFA and apoptosis. The primary purpose of the review article was to comprehensively evaluate the potential correlation between lipid rafts and apoptosis induced by different structures of TFA and provide some new research progress and future directions about it.
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Affiliation(s)
- Bin Qiu
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Agro-Products Processing Technology of Shandong Province, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture, 202 Gongye North Road, Jinan, 250100, PR China
| | - Qing Wang
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Agro-Products Processing Technology of Shandong Province, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture, 202 Gongye North Road, Jinan, 250100, PR China
| | - Wei Liu
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Agro-Products Processing Technology of Shandong Province, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture, 202 Gongye North Road, Jinan, 250100, PR China
| | - Tong-Cheng Xu
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Agro-Products Processing Technology of Shandong Province, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture, 202 Gongye North Road, Jinan, 250100, PR China
| | - Li-Na Liu
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Agro-Products Processing Technology of Shandong Province, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture, 202 Gongye North Road, Jinan, 250100, PR China
| | - Ai-Zhen Zong
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Agro-Products Processing Technology of Shandong Province, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture, 202 Gongye North Road, Jinan, 250100, PR China
| | - Min Jia
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Agro-Products Processing Technology of Shandong Province, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture, 202 Gongye North Road, Jinan, 250100, PR China
| | - Jing Li
- State Key Lab of Food Science and Technology, Nanchang University, Nanchang, Jiangxi, 330047, PR China
| | - Fang-Ling Du
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Sciences, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Agro-Products Processing Technology of Shandong Province, 202, Gongye North Road, Jinan, 250100, PR China.,Key Laboratory of Novel Food Resources Processing, Ministry of Agriculture, 202 Gongye North Road, Jinan, 250100, PR China
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11
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Da Silva MS, Bilodeau JF, Larose J, Greffard K, Julien P, Barbier O, Rudkowska I. Modulation of the biomarkers of inflammation and oxidative stress by ruminant trans fatty acids and dairy proteins in vascular endothelial cells (HUVEC). Prostaglandins Leukot Essent Fatty Acids 2017; 126:64-71. [PMID: 29031397 DOI: 10.1016/j.plefa.2017.09.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 08/29/2017] [Accepted: 09/19/2017] [Indexed: 11/20/2022]
Abstract
This study aimed to determine whether dairy macronutrients alter markers of inflammation and oxidative stress in endothelial cells. Human endothelial cells (HUVEC) were treated with ruminant trans fatty acids (rTFA), either trans-vaccenic acid (tVA) or trans-palmitoleic acid (tPA), whey protein hydrolysate, leucine or combinations of rTFA and dairy protein compounds. Industrial TFA elaidic acid (EA) was also investigated and compared with rTFA. Inflammatory prostaglandins (PG) and F2-isoprostanes (F2-isoP) isomers, markers of oxidative stress, were assessed in cell supernatants by LC-MS/MS. Both tVA and tPA, as well as whey protein hydrolysate, decreased TNFα-induced PG excretion. Combinations of rTFA and dairy protein compounds decreased inflammation to a similar extent than rTFA alone. EA increased class VI F2-isoP isomers, whereas tVA mostly raised class III isomers. In summary, rTFA decreased inflammatory markers and increased oxidative stress markers in endothelial cells. Combinations of rTFA with whey proteins or leucine showed no additive effect.
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Affiliation(s)
- Marine S Da Silva
- Endocrinology and Nephrology, Centre de recherche du CHU de Québec, Université Laval and the Faculty of Medicine, Université Laval, Quebec, Quebec, Canada
| | - Jean-François Bilodeau
- Endocrinology and Nephrology, Centre de recherche du CHU de Québec, Université Laval and the Faculty of Medicine, Université Laval, Quebec, Quebec, Canada
| | - Jessica Larose
- Endocrinology and Nephrology, Centre de recherche du CHU de Québec, Université Laval and the Faculty of Medicine, Université Laval, Quebec, Quebec, Canada
| | - Karine Greffard
- Endocrinology and Nephrology, Centre de recherche du CHU de Québec, Université Laval and the Faculty of Medicine, Université Laval, Quebec, Quebec, Canada
| | - Pierre Julien
- Endocrinology and Nephrology, Centre de recherche du CHU de Québec, Université Laval and the Faculty of Medicine, Université Laval, Quebec, Quebec, Canada
| | - Olivier Barbier
- Laboratory of Molecular Pharmacology, Endocrinology and Nephrology, Centre de recherche du CHU de Québec, Université Laval and the Faculty of Pharmacy, Université Laval, Québec, QC, Canada G1V 4G2
| | - Iwona Rudkowska
- Endocrinology and Nephrology, Centre de recherche du CHU de Québec, Université Laval and the Faculty of Medicine, Université Laval, Quebec, Quebec, Canada.
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Da Silva MS, Julien P, Bilodeau JF, Barbier O, Rudkowska I. Trans Fatty Acids Suppress TNF-α-Induced Inflammatory Gene Expression in Endothelial (HUVEC) and Hepatocellular Carcinoma (HepG2) Cells. Lipids 2017; 52:315-325. [PMID: 28315997 DOI: 10.1007/s11745-017-4243-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 03/07/2017] [Indexed: 12/12/2022]
Abstract
Trans fatty acids (TFA) intake has been linked to cardiovascular diseases and liver diseases; yet the effect of TFA on inflammation remains controversial. Accordingly, the objective of this paper was to determine the in vitro effects of TFA on inflammatory gene expression. Human umbilical vein endothelial cells (HUVEC) and human hepatocellular carcinoma (HepG2) cells were treated for 24 h with either trans-vaccenic acid (tVA), trans-palmitoleic acid (tPA) or elaidic acid (EA) at concentrations of 5-150 µM, or with a mixture of tVA and tPA (150/50 µM). All TFA were highly incorporated into cell membranes, as determined by gas chromatography, representing 15-20% of total fatty acids in HUVEC and 3-8% in HepG2 cells. Incorporation of EA, a common industrial TFA, increased the ratio of the stearoyl-CoA desaturase (SCD-1), a key enzyme involved in fatty acid metabolism. Ruminant TFA, including tVA, tPA and the mixture of tVA and tPA, significantly reduced the TNF-α-induced gene expression of TNF, VCAM-1 and SOD2 in HUVEC, as well as TNF and IL-8 in HepG2 cells. EA also decreased inflammatory gene expression in HUVEC, but not in HepG2 cells. The inhibition of peroxisome proliferator-activated receptor (PPAR)-γ did not influence the effects of TFA on gene expression. Overall, physiological and supraphysiological concentrations of TFA, especially tVA and tPA, prevented inflammatory gene expression in vitro. This effect is independent of PPAR-γ activation and may be due to an alteration of fatty acid metabolism in cell membranes caused by the high incorporation of TFA.
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Affiliation(s)
- Marine S Da Silva
- Endocrinology and Nephrology Unit, Centre de recherche du CHU de Québec, Université Laval, 2705, boul. Laurier, Québec City, QC, G1V 4G2, Canada.,The Department of Kinesiology, Faculty of Medicine, Université Laval, 2325 rue de l'Université, Québec City, QC, G1V 0A6, Canada
| | - Pierre Julien
- Endocrinology and Nephrology Unit, Centre de recherche du CHU de Québec, Université Laval, 2705, boul. Laurier, Québec City, QC, G1V 4G2, Canada.,The Department of Medicine, Faculty of Medicine, Université Laval, 2325 rue de l'Université, Québec City, QC, G1V 0A6, Canada
| | - Jean-François Bilodeau
- Endocrinology and Nephrology Unit, Centre de recherche du CHU de Québec, Université Laval, 2705, boul. Laurier, Québec City, QC, G1V 4G2, Canada.,The Department of Medicine, Faculty of Medicine, Université Laval, 2325 rue de l'Université, Québec City, QC, G1V 0A6, Canada
| | - Olivier Barbier
- Laboratory of Molecular Pharmacology, Centre de recherche du CHU de Québec, Université Laval, 2705, boul. Laurier, Québec City, QC, G1V 4G2, Canada.,The Faculty of Pharmacy, Université Laval, 2325 rue de l'Université, Québec City, QC, G1V 0A6, Canada
| | - Iwona Rudkowska
- Endocrinology and Nephrology Unit, Centre de recherche du CHU de Québec, Université Laval, 2705, boul. Laurier, Québec City, QC, G1V 4G2, Canada. .,The Department of Kinesiology, Faculty of Medicine, Université Laval, 2325 rue de l'Université, Québec City, QC, G1V 0A6, Canada.
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Li J, Rao H, Bin Q, Fan YW, Li HY, Deng ZY. Linolelaidic acid induces apoptosis, cell cycle arrest and inflammation stronger than elaidic acid in human umbilical vein endothelial cells through lipid rafts. EUR J LIPID SCI TECH 2016. [DOI: 10.1002/ejlt.201600374] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Jing Li
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang P. R. China
| | - Huan Rao
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang P. R. China
- College of Food Science and Nutritional Engineering; China Agricultural University; Beijing P. R. China
| | - Qiu Bin
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang P. R. China
- Institute of Agro-Food Science and Technology; Shandong Academy of Agricultural Sciences; Jinan P. R. China
| | - Ya-Wei Fan
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang P. R. China
| | - Hong-Yan Li
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang P. R. China
| | - Ze-Yuan Deng
- State Key Laboratory of Food Science and Technology; Nanchang University; Nanchang P. R. China
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