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Yan B, Fung K, Ye S, Lai PM, Wei YX, Sze KH, Yang D, Gao P, Kao RYT. Linoleic acid metabolism activation in macrophages promotes the clearing of intracellular Staphylococcus aureus. Chem Sci 2022; 13:12445-12460. [PMID: 36382278 PMCID: PMC9629105 DOI: 10.1039/d2sc04307f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 10/05/2022] [Indexed: 09/02/2023] Open
Abstract
Multidrug-resistant bacterial pathogens pose an increasing threat to human health. Certain bacteria, such as Staphylococcus aureus, are able to survive within professional phagocytes to escape the bactericidal effects of antibiotics and evade killing by immune cells, potentially leading to chronic or persistent infections. By investigating the macrophage response to S. aureus infection, we may devise a strategy to prime the innate immune system to eliminate the infected bacteria. Here we applied untargeted tandem mass spectrometry to characterize the lipidome alteration in S. aureus infected J774A.1 macrophage cells at multiple time points. Linoleic acid (LA) metabolism and sphingolipid metabolism pathways were found to be two major perturbed pathways upon S. aureus infection. The subsequent validation has shown that sphingolipid metabolism suppression impaired macrophage phagocytosis and enhanced intracellular bacteria survival. Meanwhile LA metabolism activation significantly reduced intracellular S. aureus survival without affecting the phagocytic capacity of the macrophage. Furthermore, exogenous LA treatment also exhibited significant bacterial load reduction in multiple organs in a mouse bacteremia model. Two mechanisms are proposed to be involved in this progress: exogenous LA supplement increases downstream metabolites that partially contribute to LA's capacity of intracellular bacteria-killing and LA induces intracellular reactive oxygen species (ROS) generation through an electron transport chain pathway in multiple immune cell lines, which further increases the capacity of killing intracellular bacteria. Collectively, our findings not only have characterized specific lipid pathways associated with the function of macrophages but also demonstrated that exogenous LA addition may activate lipid modulator-mediated innate immunity as a potential therapy for bacterial infections.
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Affiliation(s)
- Bingpeng Yan
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong 21 Sassoon Road Pokfulam Hong Kong China
| | - Kingchun Fung
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong 21 Sassoon Road Pokfulam Hong Kong China
| | - Sen Ye
- Morningside Laboratory for Chemical Biology and Department of Chemistry, The University of Hong Kong Pokfulam Road Hong Kong P. R. China
| | - Pok-Man Lai
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong 21 Sassoon Road Pokfulam Hong Kong China
| | - Yuan Xin Wei
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong 21 Sassoon Road Pokfulam Hong Kong China
| | - Kong-Hung Sze
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong 21 Sassoon Road Pokfulam Hong Kong China
| | - Dan Yang
- Morningside Laboratory for Chemical Biology and Department of Chemistry, The University of Hong Kong Pokfulam Road Hong Kong P. R. China
- Laboratory of Chemical Biology and Molecular Medicine, School of Life Sciences, Westlake University Hangzhou Zhejiang P. R. China
| | - Peng Gao
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong 21 Sassoon Road Pokfulam Hong Kong China
| | - Richard Yi-Tsun Kao
- Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong 21 Sassoon Road Pokfulam Hong Kong China
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Hidalgo MA, Carretta MD, Burgos RA. Long Chain Fatty Acids as Modulators of Immune Cells Function: Contribution of FFA1 and FFA4 Receptors. Front Physiol 2021; 12:668330. [PMID: 34276398 PMCID: PMC8280355 DOI: 10.3389/fphys.2021.668330] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/04/2021] [Indexed: 12/13/2022] Open
Abstract
Long-chain fatty acids are molecules that act as metabolic intermediates and constituents of membranes; however, their novel role as signaling molecules in immune function has also been demonstrated. The presence of free fatty acid (FFA) receptors on immune cells has contributed to the understanding of this new role of long-chain fatty acids (LCFAs) in immune function, showing their role as anti-inflammatory or pro-inflammatory molecules and elucidating their intracellular mechanisms. The FFA1 and FFA4 receptors, also known as GPR40 and GPR120, respectively, have been described in macrophages and neutrophils, two key cells mediating innate immune response. Ligands of the FFA1 and FFA4 receptors induce the release of a myriad of cytokines through well-defined intracellular signaling pathways. In this review, we discuss the cellular responses and intracellular mechanisms activated by LCFAs, such as oleic acid, linoleic acid, palmitic acid, docosahexaenoic acid (DHA), and eicosapentaenoic acid (EPA), in T-cells, macrophages, and neutrophils, as well as the role of the FFA1 and FFA4 receptors in immune cells.
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Affiliation(s)
- Maria A Hidalgo
- Laboratory of Inflammation Pharmacology, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia, Chile
| | - Maria D Carretta
- Laboratory of Inflammation Pharmacology, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia, Chile
| | - Rafael A Burgos
- Laboratory of Inflammation Pharmacology, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia, Chile
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Liu Y, Bian Y, Luo X, Wang C, Mu D, Pan G, Wu J, Shi H. Synergistic effect of docosahexaenoic acid or conjugated linoleic acid with caffeic acid on ameliorating oxidative stress of HepG2 cells. J Food Sci 2021; 86:3240-3251. [PMID: 34118075 DOI: 10.1111/1750-3841.15775] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 03/16/2021] [Accepted: 04/19/2021] [Indexed: 12/13/2022]
Abstract
Exploring the synergistic effect of docosahexaenoic acid (DHA) or conjugated linoleic acid (CLA) with caffeic acid (CA) on ameliorating oxidative stress, thereby introducing CA to DHA or CLA will contribute significantly to enhance the bioactivity. We observed that DHA or CLA with CA promoted the recovery of intact individual morphology and the decline of cavities inside the nucleus and apoptosis under the observation of confocal laser scanning microscopy and fluorescent inverted microscope. The activity of intracellular antioxidant enzymes catalase (CAT) and glutathione peroxidase (GSH-Px), lactate dehydrogenase (LDH) leakage, pyruvate and malondialdehyde and reactive oxygen species (ROS), cellular morphology, and cell cycle were analyzed. Our results showed that DHA or CLA with CA enhanced the activity of CAT and GSH-Px, decreased LDH leakage and the number of apoptotic, significantly inhibited (ROS-induced cellular injury. Cell arrest in G1 and G2 phase during cell mitosis was reduced by the measurement of flow cytometry. DHA or CLA combined with CA could markedly strengthen the free radical scavenging and endogenous antioxidant defense capacity on HepG2 cells. This study provides a new direction in the application of synergies to antioxidant compounds. PRACTICAL APPLICATION: Caffeic acid (CA) can synergize with docosahexaenoic acid (DHA) or conjugated linoleic acid (CLA) to enhance antioxidant capacity. This study highlighted an effect of ameliorating oxidative stress injury DHA or CLA with CA on HepG2 cells. The data indicated that DHA or CLA with CA might be used to relieve oxidative stress damage.
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Affiliation(s)
- Yumeng Liu
- College of Food Science, Shenyang Agricultural University, Shenyang, P.R. China
| | - Yuanyuan Bian
- College of Food Science, Shenyang Agricultural University, Shenyang, P.R. China
| | - Xue Luo
- College of Food Science, Shenyang Agricultural University, Shenyang, P.R. China
| | - Cong Wang
- College of Food Science, Shenyang Agricultural University, Shenyang, P.R. China
| | - Delun Mu
- College of Food Science, Shenyang Agricultural University, Shenyang, P.R. China
| | - Guoyang Pan
- College of Food Science, Shenyang Agricultural University, Shenyang, P.R. China
| | - Junrui Wu
- College of Food Science, Shenyang Agricultural University, Shenyang, P.R. China
| | - Haisu Shi
- College of Food Science, Shenyang Agricultural University, Shenyang, P.R. China
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Terán MM, Mónaco ME, Lazarte SS, Haro C, Ledesma Achem E, Asensio NA, Issé BA. Genetic Regulation of Redox Balance in β-Thalassemia Trait. Hemoglobin 2020; 44:122-127. [PMID: 32448013 DOI: 10.1080/03630269.2020.1765794] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
β-Thalassemia (β-thal) trait is a heterogeneous group of genetic defects leading to decreased β-globin production, ineffective erythropoiesis, and oxidative stress. The aim is to evaluate the cytoprotective response, at transcriptional and systemic levels, of the variations of global redox balance in β-thal trait patients. Sixty-six subjects (40 healthy and 26 with β-thal trait) were analyzed at the Universidad Nacional de Tucumán, Tucumán, Argentina, between 2016 and 2017. The following parameters were evaluated: complete blood count, iron status, hemoglobin (Hb) electrophoresis, Hb A2, thiobarbituric acid reactive species (TBARS), serum catalase (CAT), and superoxide dismutase (SOD) activity, FOXO3a, NRF2, SOD, PRDX2, CAT, interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) gene expression. The β-thal trait group showed a decrease in Hb levels, MCV, and MCH with higher TBARS levels. The SOD activity was significantly increased by 32.0% in β-thal trait patients respect to the control group. Relative expression of NRF2 was 4.7-fold higher in β-thal trait than in the control group, while FOXO3a expression was similar in both groups. The SOD, PRDX2, and proinflammatory cytokines transcriptional expression was significantly upregulated in β-thal trait patients. This is the first study on the genetic regulation of redox balance in β-thal trait patients in which interesting modifications were observed in the transcript levels of some redox regulators that could be associated with changes in the erythrocyte proteome in this disorder. A better understanding of the pathophysiological mechanisms present in these heterozygous patients would allow adequate therapy in situations such as growth, pregnancy, or high performance sports, favoring a personalized treatment.
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Affiliation(s)
- Magdalena M Terán
- Instituto de Bioquímica Aplicada, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina.,Instituto de Biotecnología Farmacéutica y Alimentaria (INBIOFAL), Consejo Nacional de Investigaciones Científicas y Tecnològicas (CONICET), Universidad Nacional de Tucumán, San Miguel de Tucumán, Tucumán, Argentina
| | - Maria E Mónaco
- Instituto de Bioquímica Aplicada, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina.,Instituto de Biología, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Miguel de Tucumán, Tucumán, Argentina
| | - Sandra S Lazarte
- Instituto de Bioquímica Aplicada, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Cecilia Haro
- Instituto de Bioquímica Aplicada, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina.,Instituto de Biotecnología Farmacéutica y Alimentaria (INBIOFAL), Consejo Nacional de Investigaciones Científicas y Tecnològicas (CONICET), Universidad Nacional de Tucumán, San Miguel de Tucumán, Tucumán, Argentina
| | - Emilse Ledesma Achem
- Instituto de Bioquímica Aplicada, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Natalia A Asensio
- Instituto de Bioquímica Aplicada, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina
| | - Blanca A Issé
- Instituto de Bioquímica Aplicada, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Tucumán, Argentina
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Qi XL, Wang J, Yue HY, Wu SG, Zhang YN, Ni HM, Guo Y, Zhang HJ, Qi GH. Trans10, cis12-conjugated linoleic acid exhibits a stronger antioxidant capacity than cis9, trans11-conjugated linoleic acid in primary cultures of laying hen hepatocytes. Poult Sci 2018; 97:4415-4424. [DOI: 10.3382/ps/pey297] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 06/20/2018] [Indexed: 12/23/2022] Open
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Liu WN, Leung KN. The Immunomodulatory Activity of Jacaric Acid, a Conjugated Linolenic Acid Isomer, on Murine Peritoneal Macrophages. PLoS One 2015; 10:e0143684. [PMID: 26629697 PMCID: PMC4667904 DOI: 10.1371/journal.pone.0143684] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 11/09/2015] [Indexed: 12/18/2022] Open
Abstract
This study aims at demonstrating the immunomodulatory property of jacaric acid, a conjugated linolenic acid (CLNA) isomer that is present in jacaranda seed oil, on murine peritoneal macrophages. Our results showed that jacaric acid exhibited no significant cytotoxicity on the thioglycollate-elicited murine peritoneal macrophages as revealed by the neutral red uptake assay, but markedly increased their cytostatic activity on the T-cell lymphoma MBL-2 cells as measured by the fluorometric CyQuant® NF Cell Proliferation Assay Kit. Flow cytometric analysis indicated that jacaric acid could enhance the endocytic activity of macrophages and elevated their intracellular production of superoxide anion. Moreover, jacaric acid-treated macrophages showed an increase in the production of nitric oxide which was accompanied by an increase in the expression level of inducible nitric oxide synthase protein. In addition, the secretion of several pro-inflammatory cytokines, including interferon-γ, interleukin-1β and tumor necrosis factor-α, was up-regulated. Collectively, our results indicated that the naturally-occurring CLNA isomer, jacaric acid, could exhibit immunomodulating activity on the murine peritoneal macrophages in vitro, suggesting that this CLNA isomer may act as an immunopotentiator which can be exploited for the treatment of some immunological disorders with minimal toxicity and fewer side effects.
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Affiliation(s)
- Wai Nam Liu
- Biochemistry Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, HKSAR, China
| | - Kwok Nam Leung
- Biochemistry Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, HKSAR, China
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Reduction in cytoplasmic lipid content in bovine embryos cultured in vitro with linoleic acid in semi-defined medium is correlated with increases in cryotolerance. ZYGOTE 2015; 24:485-94. [PMID: 26350684 DOI: 10.1017/s0967199415000428] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
UNLABELLED We examined whether culturing embryos with linoleic acid (LA) in semi-defined medium reduces lipid accumulation and improves cryosurvival after vitrification. Embryos were cultured with LA (100 μM) and a semi-defined medium was used during in vitro culture (IVC), in which the fetal calf serum was substituted by bovine serum albumin (BSA). There was a reduction (P < 0.05) in the embryonic development rate ( CONTROL 25.8% versus LA: 18.5%), but the proposed system was effective in promoting the decrease (P = 0.0130) in the intracellular lipid content ( CONTROL 27.3 ± 0.7 versus LA: 24.6 ± 0.7 arbitrary fluorescence units of embryos stained with the fluorescent dye Nile Red), consequently increasing (P = 0.0490) the embryo survival after 24h of culture post-warming ( CONTROL 50.0% versus LA: 71.7%). The results question the criteria used to evaluate the efficiency of an in vitro production system specifically with relation to the maximum number of blastocysts produced and suggest that might be more appropriate to improve the desired characteristics of embryos generated in accordance with the specific purpose of in vitro embryo production, commercial or scientific. In conclusion, supplying LA to serum-free culture medium was found to adversely affect the rates of embryo development to the blastocyst stage, but significantly reduced embryo lipid accumulation and improved cryopreservation survival.
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Conjugated Linoleic Acid (CLA) Stimulates Mitochondrial Biogenesis Signaling by the Upregulation of PPARγ Coactivator 1α (PGC‐1α) in C2C12 Cells. Lipids 2015; 50:329-38. [DOI: 10.1007/s11745-015-4000-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 02/10/2015] [Indexed: 01/11/2023]
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Da Silva MS, Rudkowska I. Dairy nutrients and their effect on inflammatory profile in molecular studies. Mol Nutr Food Res 2015; 59:1249-63. [DOI: 10.1002/mnfr.201400569] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 12/23/2014] [Accepted: 12/29/2014] [Indexed: 12/17/2022]
Affiliation(s)
- Marine S. Da Silva
- Department of Endocrinology and Nephrology; CHU de Québec Research Center; Quebec QC Canada
| | - Iwona Rudkowska
- Department of Endocrinology and Nephrology; CHU de Québec Research Center; Quebec QC Canada
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Afonso MDS, Castilho G, Lavrador MSF, Passarelli M, Nakandakare ER, Lottenberg SA, Lottenberg AM. The impact of dietary fatty acids on macrophage cholesterol homeostasis. J Nutr Biochem 2014; 25:95-103. [DOI: 10.1016/j.jnutbio.2013.10.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Revised: 09/11/2013] [Accepted: 10/03/2013] [Indexed: 11/16/2022]
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Effects of conjugated linoleic acid isomers on monocyte, macrophage and foam cell phenotype in atherosclerosis. Prostaglandins Other Lipid Mediat 2012; 98:56-62. [DOI: 10.1016/j.prostaglandins.2011.12.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Revised: 12/19/2011] [Accepted: 12/20/2011] [Indexed: 01/24/2023]
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