1
|
Carpinter BA, Renhe DC, Bellei JCB, Vieira CD, Rodolphi CM, Ferreira MVR, de Freitas CS, Neto AFDS, Coelho EAF, Mietto BDS, Gomes FLR, Rocha VN, Scopel KKG. DHA-rich fish oil plays a protective role against experimental cerebral malaria by controlling inflammatory and mechanical events from infection. J Nutr Biochem 2024; 123:109492. [PMID: 37866427 DOI: 10.1016/j.jnutbio.2023.109492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 05/17/2023] [Accepted: 10/17/2023] [Indexed: 10/24/2023]
Abstract
Every year, thousands of children, particularly those under 5 years old, die because of cerebral malaria (CM). Following conventional treatment, approximately 25% of surviving individuals have lifelong severe neurocognitive sequelae. Therefore, improved conventional therapies or effective alternative therapies that prevent the severe infection are crucial. Omega-3 (Ω-3) polyunsaturated fatty acids (PUFAs) are known to have antioxidative and anti-inflammatory effects and protect against diverse neurological disorders, including Alzheimer's and Parkinson's diseases. However, little is known regarding the effects of Ω-3 PUFAs against parasitic infections. In this study, C57BL/6 mice received supplemental treatment of a fish oil rich in the Ω-3 PUFA, docosahexaenoic acid (DHA), which was started 15 days prior to infection with Plasmodium berghei ANKA and was maintained until the end of the study. Animals treated with the highest doses of DHA, 3.0 and 6.0 g/kg body weight, had 60 and 80% chance of survival, respectively, while all nontreated mice died by the 7th day postinfection due to CM. Furthermore, the parasite load during the critical period for CM development (5th to 11th day postinfection) was controlled in treated mice. However, after this period all animals developed high levels of parasitemia until the 20th day of infection. DHA treatment also effectively reduced blood-brain barrier (BBB) damage and brain edema and completely prevented brain hemorrhage and vascular occlusion. A strong anti-inflammatory profile was observed in the brains of DHA-treated mice, as well as, an increased number of neutrophil and reduced number of CD8+ T leukocytes in the spleen. Thus, this is the first study to demonstrate that the prophylactic use of DHA-rich fish oil exerts protective effects against experimental CM, reducing the mechanical and immunological events caused by the P. berghei ANKA infection.
Collapse
Affiliation(s)
- Bárbara Albuquerque Carpinter
- Department of Parasitology, Microbiology and Immunology and Post-Graduation Program in Biological Science, Research Centre of Parasitology, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Daniela Chaves Renhe
- Department of Parasitology, Microbiology and Immunology and Post-Graduation Program in Biological Science, Research Centre of Parasitology, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Jéssica Correa Bezerra Bellei
- Department of Parasitology, Microbiology and Immunology and Post-Graduation Program in Biological Science, Research Centre of Parasitology, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Carolina David Vieira
- Department of Parasitology, Microbiology and Immunology and Post-Graduation Program in Biological Science, Research Centre of Parasitology, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Cinthia Magalhães Rodolphi
- Department of Parasitology, Microbiology and Immunology and Post-Graduation Program in Biological Science, Research Centre of Parasitology, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | | | - Camila Simões de Freitas
- Post-graduation Program in Health Sciences, Infectology and Tropical Medicine, Faculty of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Adolfo Firmino da Silva Neto
- Department of Biology, Research Centre of Cellular Biology, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Eduardo Antônio Ferraz Coelho
- Post-graduation Program in Health Sciences, Infectology and Tropical Medicine, Faculty of Medicine, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Bruno de Siqueira Mietto
- Department of Biology, Research Centre of Cellular Biology, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | | | - Vinicius Novaes Rocha
- Department of Veterinary Medicine, Research Centre of Pathology and Veterinary Histology, Federal University of Juiz de Fora, Juiz de Fora, Brazil
| | - Kézia Katiani Gorza Scopel
- Department of Parasitology, Microbiology and Immunology and Post-Graduation Program in Biological Science, Research Centre of Parasitology, Federal University of Juiz de Fora, Juiz de Fora, Brazil.
| |
Collapse
|
2
|
Gu J, Cao H, Chen X, Zhang XD, Thorne RF, Liu X. RNA m6A modifications regulate crosstalk between tumor metabolism and immunity. WILEY INTERDISCIPLINARY REVIEWS. RNA 2024; 15:e1829. [PMID: 38114887 DOI: 10.1002/wrna.1829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 11/20/2023] [Accepted: 11/27/2023] [Indexed: 12/21/2023]
Abstract
In recent years, m6A modifications in RNA transcripts have arisen as a hot topic in cancer research. Indeed, a number of independent studies have elaborated that the m6A modification impacts the behavior of tumor cells and tumor-infiltrating immune cells, altering tumor cell metabolism along with the differentiation and functional activity of immune cells. This review elaborates on the links between RNA m6A modifications, tumor cell metabolism, and immune cell behavior, discussing this topic from the viewpoint of reciprocal regulation through "RNA m6A-tumor cell metabolism-immune cell behavior" and "RNA m6A-immune cell behavior-tumor cell metabolism" axes. In addition, we discuss the various factors affecting RNA m6A modifications in the tumor microenvironment, particularly the effects of hypoxia associated with cancer cell metabolism along with immune cell-secreted cytokines. Our analysis proposes the conclusion that RNA m6A modifications support widespread interactions between tumor metabolism and tumor immunity. With the current viewpoint that long-term cancer control must tackle cancer cell malignant behavior while strengthening anti-tumor immunity, the recognition of RNA m6A modifications as a key factor provides a new direction for the targeted therapy of tumors. This article is categorized under: RNA Processing > RNA Editing and Modification RNA in Disease and Development > RNA in Disease RNA Interactions with Proteins and Other Molecules > Protein-RNA Interactions: Functional Implications.
Collapse
Affiliation(s)
- Jinghua Gu
- School of Life Sciences, Anhui Medical University, Hefei, China
- The First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Huake Cao
- School of Life Sciences, Anhui Medical University, Hefei, China
- The First Clinical Medical College of Anhui Medical University, Hefei, China
| | - Xiaoli Chen
- Henan International Joint Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial Key Laboratory of Long Non-coding RNA and Cancer Metabolism, Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan, China
| | - Xu Dong Zhang
- Henan International Joint Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial Key Laboratory of Long Non-coding RNA and Cancer Metabolism, Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan, China
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Newcastle, New South Wales, Australia
| | - Rick F Thorne
- Henan International Joint Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial Key Laboratory of Long Non-coding RNA and Cancer Metabolism, Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan, China
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Newcastle, New South Wales, Australia
| | - Xiaoying Liu
- School of Life Sciences, Anhui Medical University, Hefei, China
- Henan International Joint Laboratory of Non-coding RNA and Metabolism in Cancer, Henan Provincial Key Laboratory of Long Non-coding RNA and Cancer Metabolism, Translational Research Institute of Henan Provincial People's Hospital and People's Hospital of Zhengzhou University, Henan, China
| |
Collapse
|
3
|
Abril AG, Carrera M, Pazos M. Immunomodulatory effect of marine lipids on food allergy. Front Nutr 2023; 10:1254681. [PMID: 38035353 PMCID: PMC10683508 DOI: 10.3389/fnut.2023.1254681] [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: 07/07/2023] [Accepted: 10/24/2023] [Indexed: 12/02/2023] Open
Abstract
Seafood is highly enriched in n-3 long-chain polyunsaturated fatty acids (n-3 LCPUFAs), particularly eicosapentaenoic acid (EPA, 20:5 n-3) and docosahexaenoic acid (DHA, 22:6 n-3), in contrast to the ultra-processed foods included in the modern Western diet that have high levels of n-6 linoleic acid (LA, 18:2 n-6), precursor for the pro-inflammatory n-6 arachidonic acid (ARA, 20:4 n-6). The capacity of marine lipids to reduce plasmatic triglycerides and blood pressure have been well-described. Moreover, recent studies have also raised evidence of a potential regulatory action of marine lipids on inflammation, the immune system, and food allergy (FA). FA is considered one of the main concerns to become life threatening in food safety. The prevalence of this emerging global problem has been increasing during the last two decades, especially in industrialized countries. About a 6-8% of young children and 2-4% of adults is estimated to be affected by FA. The main objective of the current study is to update the existing knowledge, but also the limitations, on the potential impact of marine lipids and their lipid mediators in regulating immunity, inflammation, and ultimately, food allergies. In particular, the focus is on the effect of marine lipids in modulating the key factors that control the sensitization and effector phases of FA, including gut microbiota (GM), inflammation, and immune system response. Results in animal models highlight the positive effect that consuming marine lipids, whether as a supplement or through seafood consumption, may have a relevant role in improving gut dysbiosis and inflammation, and preventing or reducing the severity of FA. However, more systematic studies in humans are needed to optimize such beneficial actions to each particular FA, age, and medical condition to reach an effective clinical application of marine lipids to improve FAs and their outcomes.
Collapse
Affiliation(s)
- Ana G. Abril
- Department of Microbiology and Parasitology, Faculty of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, Spain
- Department of Food Technology, Institute of Marine Research (IM-CSIC), Spanish National Research Council (CSIC), Vigo, Spain
| | - Mónica Carrera
- Department of Food Technology, Institute of Marine Research (IM-CSIC), Spanish National Research Council (CSIC), Vigo, Spain
| | - Manuel Pazos
- Department of Food Technology, Institute of Marine Research (IM-CSIC), Spanish National Research Council (CSIC), Vigo, Spain
| |
Collapse
|
4
|
Djalali M, Talebi S, Djalali E, Abdolahi M, Travica N, Djalali M. The effect of omega-3 fatty acids supplementation on inflammatory biomarkers in subjects with migraine: a randomized, double-blind, placebo-controlled trial. Immunopharmacol Immunotoxicol 2023; 45:565-570. [PMID: 37126739 DOI: 10.1080/08923973.2023.2196600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 03/24/2023] [Indexed: 05/03/2023]
Abstract
OBJECTIVE Imbalances in immune regulation are important features of migraine pathophysiology. In line with this, the current study investigated the efficacy of omega-3 fatty acids supplementation on inflammatory and anti-inflammatory markers in patients with migraines. MATERIALS AND METHODS This randomized, double-blind, placebo-controlled trial consisted of 40 patients that were prone to experiencing episodic migraines. For two months, participants were randomized into one group that received omega-3 supplementation (n= 20), 600 mg of EPA and 300 mg of DHA, twice daily) or another group that received a placebo (n= 20). Transforming growth factor β (TGF-β), interleukin (IL)-4, interferon-gamma (IFN-γ), and interleukin (IL)-17 serum levels were assessed using enzyme-linked immunosorbent assay methods at baseline and following the intervention. The current study was registered on ClinicalTrials.gov with the registration number NCT02532023. RESULTS After two months of intervention, the administration of omega-3 fatty acids resulted in a significant rise in the concentrations of anti-inflammatory cytokine IL-4 (p=0.010) as well as a significant reduction in concentrations of pro-inflammatory cytokine IFN-γ (p=0.001) compared with the placebo. However, no significant changes were observed in serum TGF-β and IL-17 levels. DISCUSSION Our findings indicated consumption of omega-3 fatty acids may have a potentially beneficial response on the inflammatory immune response in patients with migraines. Larger trials are needed to corroborate these findings.
Collapse
Affiliation(s)
- Mina Djalali
- School of Medicine, Shahid Beheshti University, Tehran, Iran
| | - Sepide Talebi
- Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Djalali
- Islamic Azad University Research Center, Tehran, Iran
| | - Mina Abdolahi
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Nikolaj Travica
- Food & Mood Centre, IMPACT - the Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Deakin University, Geelong, Australia
| | | |
Collapse
|
5
|
Patel D, Munhoz J, Goruk S, Tsai S, Richard C, Field CJ. Maternal diet supplementation with high-docosahexaenoic-acid canola oil, along with arachidonic acid, promotes immune system development in allergy-prone BALB/c mouse offspring at 3 weeks of age. Eur J Nutr 2023; 62:2399-2413. [PMID: 37106253 DOI: 10.1007/s00394-023-03160-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 04/18/2023] [Indexed: 04/29/2023]
Abstract
PURPOSE To study the effects of feeding docosahexaenoic acid (DHA, derived from novel canola oil), with same amount of arachidonic acid (ARA), supplemented diet to lactating dams on the immune system development of suckled offspring using a T helper type-2 (Th2)-dominant BALB/c mouse. METHODS Dams received nutritionally complete control (no ARA or DHA) or DHA + ARA diet (1% DHA and 1% ARA of total fatty acids) from 5 days pre-parturition to the end of 3-week suckling period. After euthanization, relevant tissues were collected to study fatty acids, splenocyte phenotype and function (ex vivo cytokines with/without lipopolysaccharide (LPS, bacterial challenge) or phorbol myristate acetate + ionomycin (PMAi) stimulation). RESULTS Feeding dams a DHA diet significantly increased the mammary gland milk phospholipid concentration of DHA and ARA. This resulted in 60% higher DHA levels in splenocyte phospholipids of the pups although ARA levels showed no difference. In dams fed DHA diet, significantly higher proportion of CD27+ cytotoxic T cell (CTL) and CXCR3+ CCR6- Th (enriched in Th1) were observed than control, but there were no differences in the splenocyte function upon PMAi (non-specific lymphocyte stimulant) stimulation. Pups from DHA-fed dams showed significantly higher IL-1β, IFN-γ and TNF-α (inflammatory cytokines) by LPS-stimulated splenocytes. This may be due to higher proportion of CD86+ macrophages and B cells (all p's < 0.05) in these pups, which may influence T cell polarization. CONCLUSION Plant-based source of DHA in maternal diet resulted in higher ex vivo production of inflammatory cytokines by splenocytes due to change in their phenotype, and this can skew T cell towards Th1 response in a Th2-dominant BALB/c mouse.
Collapse
Affiliation(s)
- Dhruvesh Patel
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Jaqueline Munhoz
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Susan Goruk
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Sue Tsai
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada
| | - Caroline Richard
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Catherine J Field
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada.
| |
Collapse
|
6
|
Morin S, Bélanger S, Cortez Ghio S, Pouliot R. Eicosapentaenoic acid reduces the proportion of IL-17A-producing T cells in a 3D psoriatic skin model. J Lipid Res 2023; 64:100428. [PMID: 37597582 PMCID: PMC10509711 DOI: 10.1016/j.jlr.2023.100428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 08/03/2023] [Accepted: 08/11/2023] [Indexed: 08/21/2023] Open
Abstract
Psoriasis is a skin disease presenting as erythematous lesions with accentuated proliferation of epidermal keratinocytes, infiltration of leukocytes, and dysregulated lipid metabolism. T cells play essential roles in the disease. n-3 polyunsaturated fatty acids are anti-inflammatory metabolites, which exert an immunosuppressive effect on healthy T cells. However, the precise mechanistic processes of n-3 polyunsaturated fatty acids on T cells in psoriasis are still unrevealed. In this study, we aimed to evaluate the action of eicosapentaenoic acid (EPA) on T cells in a psoriatic skin model produced with T cells. A coculture of psoriatic keratinocytes and polarized T cells was prepared using culture media, which was either supplemented with 10 μM EPA or left unsupplemented. Healthy and psoriatic skin substitutes were produced according to the self-assembly method. In the coculture model, EPA reduced the proportion of IL-17A-positive cells, while increasing that of FOXP3-positive cells, suggesting an increase in the polarization of regulatory T cells. In the 3D psoriatic skin model, EPA normalized the proliferation of psoriatic keratinocytes and diminished the levels of IL-17A. The expression of the proteins of the signal transducer and activator of transcription was influenced following EPA supplementation with downregulation of the phosphorylation levels of signal transducer and activator of transcription 3 in the dermis. Finally, the NFκB signaling pathway was modified in the EPA-supplemented substitutes with an increase in Fas amounts. Ultimately, our results suggest that in this psoriatic model, EPA exerts its anti-inflammatory action by decreasing the proportion of IL-17A-producing T cells.
Collapse
Affiliation(s)
- Sophie Morin
- Center for Research in Experimental Organogenesis of Laval University/LOEX, Regenerative Medicine Axis, CHU of Quebec/Laval University Research Center, Qu ebec, QC, Canada; Faculty of Pharmacy, Laval University, Quebec, QC, Canada
| | - Sarah Bélanger
- Center for Research in Experimental Organogenesis of Laval University/LOEX, Regenerative Medicine Axis, CHU of Quebec/Laval University Research Center, Qu ebec, QC, Canada; Faculty of Pharmacy, Laval University, Quebec, QC, Canada
| | | | - Roxane Pouliot
- Center for Research in Experimental Organogenesis of Laval University/LOEX, Regenerative Medicine Axis, CHU of Quebec/Laval University Research Center, Qu ebec, QC, Canada; Faculty of Pharmacy, Laval University, Quebec, QC, Canada.
| |
Collapse
|
7
|
Talamonti E, Jacobsson A, Chiurchiù V. Impairment of Endogenous Synthesis of Omega-3 DHA Exacerbates T-Cell Inflammatory Responses. Int J Mol Sci 2023; 24:ijms24043717. [PMID: 36835128 PMCID: PMC9966148 DOI: 10.3390/ijms24043717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/04/2023] [Accepted: 02/08/2023] [Indexed: 02/15/2023] Open
Abstract
Omega-3 (ω-3) polyunsaturated fatty acids, including docosahexaenoic acid (DHA), are involved in numerous biological processes and have a range of health benefits. DHA is obtained through the action of elongases (ELOVLs) and desaturases, among which Elovl2 is the key enzyme involved in its synthesis, and can be further metabolized into several mediators that regulate the resolution of inflammation. Our group has recently reported that ELOVL2 deficient mice (Elovl2-/-) not only display reduced DHA levels in several tissues, but they also have higher pro-inflammatory responses in the brain, including the activation of innate immune cells such as macrophages. However, whether impaired synthesis of DHA affects cells of adaptive immunity, i.e., T lymphocytes, is unexplored. Here we show that Elovl2-/- mice have significantly higher lymphocytes in peripheral blood and that both CD8+ and CD4+ T cell subsets produce greater amounts of pro-inflammatory cytokines in both blood and spleen compared to wild type mice, with a higher percentage of cytotoxic CD8+ T cells (CTLs) as well as IFN-γ-producing Th1 and IL-17-producing Th17 CD4+ cells. Furthermore, we also found that DHA deficiency impacts the cross-talk between dendritic cells (DC) and T cells, inasmuch as mature DCs of Elovl2-/- mice bear higher expression of activation markers (CD80, CD86 and MHC-II) and enhance the polarization of Th1 and Th17 cells. Reintroducing DHA back into the diets of Elovl2-/- mice reversed the exacerbated immune responses observed in T cells. Hence, impairment of endogenous synthesis of DHA exacerbates T cell inflammatory responses, accounting for an important role of DHA in regulating adaptive immunity and in potentially counteracting T-cell-mediated chronic inflammation or autoimmunity.
Collapse
Affiliation(s)
- Emanuela Talamonti
- Department of Biochemistry and Biophysics, Stockholm University, 114 Stockholm, Sweden
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, 114 Stockholm, Sweden
| | - Anders Jacobsson
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, 114 Stockholm, Sweden
| | - Valerio Chiurchiù
- Institute of Translational Pharmacology, National Research Council, 00133 Rome, Italy
- Laboratory of Resolution of Neuroinflammation, IRCCS Santa Lucia Foundation, 00179 Rome, Italy
- Correspondence: or
| |
Collapse
|
8
|
Wang Y, Zhao Y, Zhu Y, Xu H, Zhao W, Huang C, Wang B, Gao X, Zhang Q, Zheng J, Sun S. DHA attenuates CAR-T cell efficacy through aggravating exhaustion and inducing apoptosis. Biologia (Bratisl) 2023. [DOI: 10.1007/s11756-023-01326-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
9
|
Role of Omega-3 Fatty Acids in Cardiovascular Disease: the Debate Continues. Curr Atheroscler Rep 2023; 25:1-17. [PMID: 36580204 PMCID: PMC9834373 DOI: 10.1007/s11883-022-01075-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2022] [Indexed: 12/30/2022]
Abstract
PURPOSE OF REVIEW The omega-3 fatty acids (n3-FAs), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), have recently undergone testing for their ability to reduce residual cardiovascular (CV) risk among statin-treated subjects. The outcome trials have yielded highly inconsistent results, perhaps attributable to variations in dosage, formulation, and composition. In particular, CV trials using icosapent ethyl (IPE), a highly purified ethyl ester of EPA, reproducibly reduced CV events and progression of atherosclerosis compared with mixed EPA/DHA treatments. This review summarizes the mechanistic evidence for differences among n3-FAs on the development and manifestations of atherothrombotic disease. RECENT FINDINGS Large randomized clinical trials with n3-FAs have produced discordant outcomes despite similar patient profiles, doses, and triglyceride (TG)-lowering effects. A large, randomized trial with IPE, a prescription EPA only formulation, showed robust reduction in CV events in statin treated patients in a manner proportional to achieved blood EPA concentrations. Multiple trials using mixed EPA/DHA formulations have not shown such benefits, despite similar TG lowering. These inconsistencies have inspired investigations into mechanistic differences among n3-FAs, as EPA and DHA have distinct membrane interactions, metabolic products, effects on cholesterol efflux, antioxidant properties, and tissue distribution. EPA maintains normal membrane cholesterol distribution, enhances endothelial function, and in combination with statins improves features implicated in plaque stability and reduces lipid content of plaques. Insights into reductions in residual CV risk have emerged from clinical trials using different formulations of n3-FAs. Among high-risk patients on contemporary care, mixed n3-FA formulations showed no reduction in CV events. The distinct benefits of IPE in multiple trials may arise from pleiotropic actions that correlate with on-treatment EPA levels beyond TG-lowering. These effects include altered platelet function, inflammation, cholesterol distribution, and endothelial dysfunction. Elucidating such mechanisms of vascular protection for EPA may lead to new interventions for atherosclerosis, a disease that continues to expand worldwide.
Collapse
|
10
|
Suzuki T, Karayama M, Inoue Y, Hozumi H, Suzuki Y, Furuhashi K, Fujisawa T, Enomoto N, Nakamura Y, Inui N, Suda T. Associations of serum long-chain fatty acids with multiple organ involvement in patients with sarcoidosis. BMC Pulm Med 2022; 22:290. [PMID: 35902843 PMCID: PMC9335968 DOI: 10.1186/s12890-022-02084-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 07/19/2022] [Indexed: 11/17/2022] Open
Abstract
Background Fatty acids have diverse immunomodulatory functions and the potential to be associated with inflammatory responses in sarcoidosis. Methods The serum levels of multiple long-chain fatty acids (LCFAs) were compared between 63 patients with sarcoidosis and 38 healthy controls. The associations of LCFAs with clinical outcomes of sarcoidosis were also evaluated. Results The patients with sarcoidosis had significantly lower levels of n-3 poly-unsaturated fatty acids (PUFAs) (p < 0.001) and n-6 PUFAs (p < 0.001) than the healthy controls. However, there were no significant differences in the levels of saturated fatty acids (SFAs) and mono-unsaturated fatty acids (MUFAs) between the two groups. On multivariate logistic analysis, lower levels of n-3 PUFAs, n-6 PUFAs, and n-3/n-6 ratio were predictive of sarcoidosis. Among the patients with sarcoidosis, those with multiple organ involvement had significantly lower levels of n-3 PUFAs and n-3/n-6 ratio than those with single organ involvement. There were no significant differences in the levels of n-6 PUFAs, SFAs, and MUFAs between the patients with multiple and single organ involvement. On multivariate logistic analysis, lower levels of SFAs and n-3/n-6 ratio were predictive of multiple organ involvement. The levels of LCFAs had no significant association with radiographic stage or spontaneous remission. Conclusions Assessment of LCFA profiles may be useful for the diagnosis of sarcoidosis and evaluation of the disease activity. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-022-02084-x.
Collapse
Affiliation(s)
- Takahito Suzuki
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan
| | - Masato Karayama
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan. .,Department of Chemotherapy, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan.
| | - Yusuke Inoue
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan.,Department of Clinical Pharmacology and Therapeutics, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan
| | - Hironao Hozumi
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan
| | - Yuzo Suzuki
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan
| | - Kazuki Furuhashi
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan
| | - Tomoyuki Fujisawa
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan
| | - Noriyuki Enomoto
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan
| | - Yutaro Nakamura
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan
| | - Naoki Inui
- Department of Clinical Pharmacology and Therapeutics, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan
| | - Takafumi Suda
- Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu, 431-3192, Japan
| |
Collapse
|
11
|
Sherratt SCR, Libby P, Bhatt DL, Mason RP. A biological rationale for the disparate effects of omega-3 fatty acids on cardiovascular disease outcomes. Prostaglandins Leukot Essent Fatty Acids 2022; 182:102450. [PMID: 35690002 DOI: 10.1016/j.plefa.2022.102450] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/09/2022] [Accepted: 05/19/2022] [Indexed: 12/29/2022]
Abstract
The omega-3 fatty acids (n3-FAs) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) rapidly incorporate into cell membranes where they modulate signal transduction pathways, lipid raft formation, and cholesterol distribution. Membrane n3-FAs also form specialized pro-resolving mediators and other intracellular oxylipins that modulate inflammatory pathways, including T-cell differentiation and gene expression. Cardiovascular (CV) trials have shown that EPA, administered as icosapent ethyl (IPE), reduces composite CV events, along with plaque volume, in statin-treated, high-risk patients. Mixed EPA/DHA regimens have not shown these benefits, perhaps as the result of differences in formulation, dosage, or potential counter-regulatory actions of DHA. Indeed, EPA and DHA have distinct, tissue-specific effects on membrane structural organization and cell function. This review summarizes: (1) results of clinical outcome and imaging trials using n3-FA formulations; (2) membrane interactions of n3-FAs; (3) effects of n3-FAs on membrane oxidative stress and cholesterol crystalline domain formation during hyperglycemia; (4) n3-FA effects on endothelial function; (5) role of n3-FA-generated metabolites in inflammation; and (6) ongoing and future clinical investigations exploring treatment targets for n3-FAs, including COVID-19.
Collapse
Affiliation(s)
- Samuel C R Sherratt
- Department of Molecular, Cellular, and Biomedical Sciences, University of New Hampshire, Durham, NH 03823, USA; Elucida Research LLC, Beverly, MA 01915-0091, USA
| | - Peter Libby
- Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115-6110, USA
| | - Deepak L Bhatt
- Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115-6110, USA
| | - R Preston Mason
- Department of Medicine, Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115-6110, USA; Elucida Research LLC, Beverly, MA 01915-0091, USA.
| |
Collapse
|
12
|
Li Z, Li X, Cai Z, Jin G, Ahn DU, Huang X. Immunomodulatory Effects of Chicken Soups Prepared with the Native Cage-free Chickens and the Commercial Caged Broilers. Poult Sci 2022; 101:102053. [PMID: 35986946 PMCID: PMC9411684 DOI: 10.1016/j.psj.2022.102053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/29/2022] [Accepted: 07/06/2022] [Indexed: 11/29/2022] Open
Abstract
The objective of this study was to compare the immunomodulatory effects of the chicken soups prepared with the native free-range chickens and the commercial caged broilers in the immunosuppressive mice. The immunosuppressive mice model was established by the intraperitoneal injection of 100 mg of cyclophosphamide (CTX) per kg body weight. The powders of Gushi Chicken Soup (GCS), Honglashan Chicken Soup (HCS), and Cobb Broiler Soup (CBS) were prepared by high-pressure stewing followed by spray drying. The chicken soups' nutrient content and the effects of three chicken soups on the body weight, organ index, blood index, and serum cytokine and immunoglobulin contents in the immunosuppressive mice were determined. The three chicken soups promoted the recovery of immunosuppressive mice, but the expression mechanisms were different. The GCS was more effective than the HCS and CBS in restoring blood index, promoting cytokine secretion, and increasing immunoglobulin content (P < 0.05). The HCS stimulated the Th1-type immune response and promoted immunoglobulin secretion (P < 0.05), while the CBS increased the production of CD4+ and promoted the T-cell functions better than other soups (P < 0.05). Although soups from the native free-range chickens and the commercial caged broilers showed distinctly different mechanisms in promoting immunity, both could be used as potential immunomodulators.
Collapse
Affiliation(s)
- Zuyue Li
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Xiaomeng Li
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Zhaoxia Cai
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Guofeng Jin
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China
| | - Dong Uk Ahn
- Animal Science Department, Iowa State University, Ames, USA
| | - Xi Huang
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, National Research and Development Center for Egg Processing, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, PR China.
| |
Collapse
|
13
|
Qiu J, Ma Y, Qiu J. Regulation of intestinal immunity by dietary fatty acids. Mucosal Immunol 2022; 15:846-856. [PMID: 35821290 DOI: 10.1038/s41385-022-00547-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/28/2022] [Accepted: 06/28/2022] [Indexed: 02/04/2023]
Abstract
Dietary fatty acids are absorbed through the intestine and are fundamental for cellular energy provision and structural formation. Dietary fatty acids profoundly affect intestinal immunity and influence the development and progression of inflammatory bowel disease, intestinal infections and tumors. Although different types of fatty acids exert differential roles in intestinal immunity, a western diet, rich in saturated fatty acids with abundant carbohydrates and studied as high-fat diet (HFD) in animal experiments, disturbs intestinal homeostasis and plays a pathogenic role in intestinal inflammatory diseases. Here, we review recent findings on the regulation of intestinal immunity by dietary fatty acids, focusing on HFD. We summarize HFD-altered immune responses leading to susceptibility to intestinal pathology and dissect the mechanisms involving the impact of HFD on immune cells, intestinal epithelial cells and the microbiota. Understanding the perturbation of intestinal immunity by HFD will provide new strategies for prevention and treatment of intestinal inflammatory diseases.
Collapse
Affiliation(s)
- Jinxin Qiu
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yanhui Ma
- Department of Laboratory Medicine, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
| | - Ju Qiu
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
| |
Collapse
|
14
|
Conway J, Certo M, Lord JM, Mauro C, Duggal NA. Understanding the role of host metabolites in the induction of immune senescence: Future strategies for keeping the ageing population healthy. Br J Pharmacol 2022; 179:1808-1824. [PMID: 34435354 DOI: 10.1111/bph.15671] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/12/2021] [Accepted: 08/19/2021] [Indexed: 12/24/2022] Open
Abstract
Advancing age is accompanied by significant remodelling of the immune system, termed immune senescence, and increased systemic inflammation, termed inflammageing, both of which contribute towards an increased risk of developing chronic diseases in old age. Age-associated alterations in metabolic homeostasis have been linked with changes in a range of physiological functions, but their effects on immune senescence remains poorly understood. In this article, we review the recent literature to formulate hypotheses as to how an age-associated dysfunctional metabolism, driven by an accumulation of key host metabolites (saturated fatty acids, cholesterol, ceramides and lactate) and loss of other metabolites (glutamine, tryptophan and short-chain fatty acids), might play a role in driving immune senescence and inflammageing, ultimately leading to diseases of old age. We also highlight the potential use of metabolic immunotherapeutic strategies targeting these processes in counteracting immune senescence and restoring immune homeostasis in older adults. LINKED ARTICLES: This article is part of a themed issue on Inflammation, Repair and Ageing. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v179.9/issuetoc.
Collapse
Affiliation(s)
- Jessica Conway
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, UK
| | - Michelangelo Certo
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | - Janet M Lord
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, UK
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham and University of Birmingham, Birmingham, UK
| | - Claudio Mauro
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, UK
| | - Niharika A Duggal
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- MRC-Versus Arthritis Centre for Musculoskeletal Ageing Research, University of Birmingham, Birmingham, UK
| |
Collapse
|
15
|
Reilly NA, Lutgens E, Kuiper J, Heijmans BT, Jukema JW. Effects of fatty acids on T cell function: role in atherosclerosis. Nat Rev Cardiol 2021; 18:824-837. [PMID: 34253911 DOI: 10.1038/s41569-021-00582-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/01/2021] [Indexed: 01/08/2023]
Abstract
T cells are among the most common cell types present in atherosclerotic plaques and are increasingly being recognized as a central mediator in atherosclerosis development and progression. At the same time, triglycerides and fatty acids have re-emerged as crucial risk factors for atherosclerosis. Triglycerides and fatty acids are important components of the milieu to which the T cell is exposed from the circulation to the plaque, and increasing evidence shows that fatty acids influence T cell function. In this Review, we discuss the effects of fatty acids on four components of the T cell response - metabolism, activation, proliferation and polarization - and the influence of these changes on the pathogenesis of atherosclerosis. We also discuss how quiescent T cells can undergo a type of metabolic reprogramming induced by exposure to fatty acids in the circulation that influences the subsequent functions of T cells after activation, such as in atherosclerotic plaques.
Collapse
Affiliation(s)
- Nathalie A Reilly
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, Netherlands
- Department of Cardiology, Leiden University Medical Centre, Leiden, Netherlands
| | - Esther Lutgens
- Department of Medical Biochemistry, Amsterdam University Medical Centre, Amsterdam, Netherlands
- Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians Universität, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), partner site Munich Heart Alliance, Munich, Germany
| | - Johan Kuiper
- Leiden Academic Centre for Drug Research, Division of Biotherapeutics, Leiden University, Leiden, Netherlands
| | - Bastiaan T Heijmans
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Centre, Leiden, Netherlands
| | - J Wouter Jukema
- Department of Cardiology, Leiden University Medical Centre, Leiden, Netherlands.
- Netherlands Heart Institute, Utrecht, Netherlands.
| |
Collapse
|
16
|
Elsayed HRH, Anbar HS, Rabei MR, Adel M, El-Gamal R. Eicosapentaenoic and docosahexaenoic acids attenuate methotrexate-induced apoptosis and suppression of splenic T, B-Lymphocytes and macrophages with modulation of expression of CD3, CD20 and CD68. Tissue Cell 2021; 72:101533. [PMID: 33838352 DOI: 10.1016/j.tice.2021.101533] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/17/2021] [Accepted: 03/17/2021] [Indexed: 12/11/2022]
Abstract
Methotrexate (MTX) is a chemotherapeutic agent used for cancer and autoimmune disorders. MTX may cause multi-organ affections. However, few studies examined MTX-induced splenic suppression and therapeutic modalities against it. This is the first study to explore the efficacy of omega-3 fatty acids; Eicosapentaenoic (EPA) and Docosahexaenoic (DHA) against MTX-induced splenic suppression and its effect on splenic macrophages and lymphocytes. Five groups of Sprague Dawley rats were used. Group 1 received saline; group 2: omega-3 only; group 3: a single dose of MTX (20 mg/kg); groups 4 and 5: MTX (20 mg/kg) + either omega-3 (150) or (300 mg/kg) once daily, respectively, given for two days before MTX and three days after it. Splenic tissues were then removed, evaluated for oxidative stress markers; GSH, MDA, and for mRNA expression of the apoptotic marker caspase-3, the anti-apoptotic marker Bcl-2 and the inflammatory cytokine TNFα. Moreover, H&E stain, Prussian blue stain for iron, and immunohistochemical staining for TNFα, T lymphocyte marker; CD3, B lymphocyte marker; CD20, and macrophage marker; CD68, were performed with morphometric analysis. EPA and DHA could decrease the MTX-induced increase in the histopathological injury score, splenic hemosiderin, splenic MDA, mRNA expression of TNFα, caspase-3 and could increase the MTX-induced decrease in Splenic GSH and mRNA expression for Bcl-2. It also decreased the MTX-induced elevation in the immunopositive area of TNFα, and increased the area percentage of CD3+, CD20+ and CD68+ cells. Therefore, omega-3 can be a promising adjuvant to help MTX action with prevention of its deleterious effects on spleen.
Collapse
Affiliation(s)
- Hassan Reda Hassan Elsayed
- Department of Anatomy and Embryology, Faculty of Medicine, Mansoura University, 35516, Egypt; Department of Anatomy, Faculty of Medicine, Horus University, New Damietta, Egypt.
| | - Hanan S Anbar
- Department of Clinical Pharmacy and Pharmacotherapeutics, Dubai Pharmacy College for Girls, Dubai, 19099, United Arab Emirates
| | - Mohammed R Rabei
- Department of Physiology, Faculty of Medicine, Mansoura University, 35516, Egypt
| | - Mohamed Adel
- Department of Physiology, Faculty of Medicine, Mansoura University, 35516, Egypt
| | - Randa El-Gamal
- Department of Medical Biochemistry, And Mansoura experimental research center, Faculty of Medicine, Mansoura University, 35516, Egypt
| |
Collapse
|
17
|
Das UN. Molecular biochemical aspects of salt (sodium chloride) in inflammation and immune response with reference to hypertension and type 2 diabetes mellitus. Lipids Health Dis 2021; 20:83. [PMID: 34334139 PMCID: PMC8327432 DOI: 10.1186/s12944-021-01507-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 07/14/2021] [Indexed: 12/18/2022] Open
Abstract
Obesity, insulin resistance, type 2 diabetes mellitus (T2DM) and hypertension (HTN) are common that are associated with low-grade systemic inflammation. Diet, genetic factors, inflammation, and immunocytes and their cytokines play a role in their pathobiology. But the exact role of sodium, potassium, magnesium and other minerals, trace elements and vitamins in the pathogenesis of HTN and T2DM is not known. Recent studies showed that sodium and potassium can modulate oxidative stress, inflammation, alter the autonomic nervous system and induce dysfunction of the innate and adaptive immune responses in addition to their action on renin-angiotensin-aldosterone system. These actions of sodium, potassium and magnesium and other minerals, trace elements and vitamins are likely to be secondary to their action on pro-inflammatory cytokines IL-6, TNF-α and IL-17 and metabolism of essential fatty acids that may account for their involvement in the pathobiology of insulin resistance, T2DM, HTN and autoimmune diseases.
Collapse
Affiliation(s)
- Undurti N Das
- UND Life Sciences, 2221 NW 5th St, Battle Ground, WA, 98604, USA.
| |
Collapse
|
18
|
Jalili M, Hekmatdoost A. Dietary ω-3 fatty acids and their influence on inflammation via Toll-like receptor pathways. Nutrition 2020; 85:111070. [PMID: 33545546 DOI: 10.1016/j.nut.2020.111070] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/05/2020] [Accepted: 11/02/2020] [Indexed: 12/17/2022]
Abstract
Dietary intake of long-chain, highly unsaturated ω-3 fatty acids (FAs) is considered indispensable for humans. The ω-3 FAs have been known to be anti-inflammatory and immunomodulatory dietary factors; however, the modes of action on pathogen recognition receptors (PRRs) and downstream signaling pathways have not been fully elucidated. Dietary sources contain various amounts of ω-3 long-chain fatty acids (LCFAs) of different lengths and the association between intake of these polyunsaturated fatty acids (PUFAs) with underlying mechanisms of various immune-related disorders can be of great interest. The potential anti-inflammatory role for ω-3 LCFAs can be explained by modification of lipid rafts, modulation of inflammatory mediators such as cytokines and PRRs. Toll-like receptors (TLRs) are a group of PRRs that play an important role in the recognition of bacterial infections and ω-3 FAs have been implicated in the modulation of downstream signaling of TLR-4, an important receptor for recognition of gram-negative bacteria. The ω-3 FAs docosahexaenoic acid and eicosapentaenoic acid have been investigated in vivo and in vitro for their effects on the nuclear factor-κB activation pathway. Identification of the effects of ω-3 FAs on other key molecular factors like prostaglandins and leukotrienes and their signals may help the recognition and development of medicines to suppress the main mediators and turn on the expression of anti-inflammatory cytokines and nuclear receptors.
Collapse
Affiliation(s)
- Mahsa Jalili
- Cell, Molecular Biology Group, Department of Biology, Faculty of Natural Sciences, Norwegian University of Science and Technology, Trondheim, Norway.
| | - Azita Hekmatdoost
- Department of Clinical Nutrition, Faculty of Nutrition and Food Sciences, Shahid Beheshti University of Medical Sciences, National Nutrition and Food Technology Research Institute, Tehran, Iran
| |
Collapse
|
19
|
Liddle DM, Hutchinson AL, Monk JM, DeBoer AA, Ma DWL, Robinson LE. Dietary long-chain n-3 PUFAs mitigate CD4 + T cell/adipocyte inflammatory interactions in co-culture models of obese adipose tissue. J Nutr Biochem 2020; 86:108488. [PMID: 32827664 DOI: 10.1016/j.jnutbio.2020.108488] [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: 02/11/2020] [Revised: 05/14/2020] [Accepted: 08/05/2020] [Indexed: 02/07/2023]
Abstract
Obese adipose tissue (AT) inflammation is partly driven by accumulation of CD4+ T helper (Th)1 cells and reduced Th2 and T regulatory subsets, which promotes macrophage chemotaxis and ensuing AT metabolic dysfunction. This study investigated CD4+ T cell/adipocyte cytokine-mediated paracrine interactions (cross talk) as a target for dietary intervention to mitigate obese AT inflammation. Using an in vitro co-culture model designed to recapitulate CD4+ T cell accumulation in obese AT (5% of stromal vascular cellular fraction), 3T3-L1 adipocytes were co-cultured with purified splenic CD4+ T cells from C57Bl/6 mice consuming one of two isocaloric diets containing either 10% w/w safflower oil (control, CON) or 7% w/w safflower oil+3% w/w fish oil (FO) for 4 weeks (n=8-11/diet). The FO diet provided 1.9% kcal from the long-chain (LC) n-3 polyunsaturated fatty acids (PUFAs) eicosapentaenoic acid and docosahexaenoic acid, a dose that can be achieved by supplementation. Co-cultures were stimulated for 48 h with lipopolysaccharide (LPS) to mimic in vivo obese endotoxin levels or with conditioned media collected from LPS-stimulated visceral AT isolated from CON-fed mice. In both stimulation conditions, FO reduced mRNA expression and/or secreted protein levels of Th1 markers (T-bet, IFN-γ) and increased Th2 markers (GATA3, IL-4), concomitant with reduced inflammatory cytokines (IL-1β, IL-6, IL-12p70, TNF-α), macrophage chemokines (MCP-1, MCP-3, MIP-1α, MIP-2) and levels of activated central regulators of inflammatory signaling (NF-κB, STAT-1, STAT-3) (P<.05). Therefore, CD4+ T cell/adipocyte cross talk represents a potential target for LC n-3 PUFAs to mitigate obese AT inflammation.
Collapse
Affiliation(s)
- Danyelle M Liddle
- Department of Hsuman Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada N1G 2W1
| | - Amber L Hutchinson
- Department of Hsuman Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada N1G 2W1
| | - Jennifer M Monk
- Department of Hsuman Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada N1G 2W1
| | - Anna A DeBoer
- Department of Hsuman Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada N1G 2W1
| | - David W L Ma
- Department of Hsuman Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada N1G 2W1
| | - Lindsay E Robinson
- Department of Hsuman Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada N1G 2W1.
| |
Collapse
|
20
|
Xia DN, Tan YQ, Yang JY, Zhou G. Omega-3 polyunsaturated fatty acids: a promising approach for the management of oral lichen planus. Inflamm Res 2020; 69:989-999. [PMID: 32770320 DOI: 10.1007/s00011-020-01388-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/26/2020] [Accepted: 07/29/2020] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND Oral lichen planus (OLP) is a T-cell-mediated inflammatory disease with a risk of malignant transformation. Although the etiology of OLP is still uncertain, growing evidence suggests that oral microbiota, antigen-specific, and non-specific mechanisms are involved in the pathogenesis of OLP. Antigen-specific mechanisms include antigen presentation, T-cell activation, nuclear factor-kappa B signaling pathway, and cytokine secretion, while non-specific mechanisms consist of matrix metalloproteinases (MMP)-9 upregulation, psychological pressure, oxidative damage, aberrant expression of microRNAs (miRNAs), and autophagy. Till now, there is no cure for OLP, and the main purpose of OLP therapy is symptomatic control. FINDING Seafood and its derivative omega-3 polyunsaturated fatty acids (n-3 PUFAs) can suppress antigen presentation, T-cell activation, and nuclear factor-kappa B signaling pathway, modulate the overexpressed inflammatory cytokines, inhibit the expression of MMP-9, as well as regulate the expression of miRNAs and autophagy. And they are possible agents for ameliorating psychological disorder and oxidative damage. Moreover, n-3 PUFAs supplementation has a beneficial effect on preventing tumorigenesis. CONCLUSION n-3 PUFAs consumption may provide a non-toxic, inexpensive administration for OLP.
Collapse
Affiliation(s)
- Duo-Na Xia
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Luoyu Road 237, 430070, Wuhan, China
| | - Ya-Qin Tan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Luoyu Road 237, 430070, Wuhan, China
| | - Jing-Ya Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Luoyu Road 237, 430070, Wuhan, China
| | - Gang Zhou
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Luoyu Road 237, 430070, Wuhan, China. .,Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
| |
Collapse
|
21
|
Pauls SD, Ragheb M, Winter T, Leng S, Taylor CG, Zahradka P, Aukema HM. Spleen Oxylipin and Polyunsaturated Fatty Acid Profiles are Altered by Dietary Source of Polyunsaturated Fatty Acid and by Sex. Lipids 2020; 55:261-270. [PMID: 32255511 DOI: 10.1002/lipd.12235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/09/2020] [Accepted: 03/18/2020] [Indexed: 01/03/2023]
Abstract
As the largest secondary lymphoid organ, the spleen plays an important role in immune responses. The role of arachidonic acid (ARA) and its 20-carbon eicosanoids in modulating immune function has long been of interest. However, recent advances have enabled the identification of numerous other n-6 and n-3 polyunsaturated fatty acid (PUFA)-derived oxylipins. Here, we investigate the effects of diet and sex on the spleen nonesterified oxylipin profiles and phospholipid and neutral lipid PUFA composition in Sprague-Dawley rats supplemented with oils rich in α-linolenic acid (ALA), eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), or linoleic acid. Dietary ALA, EPA, and DHA resulted in lower levels of ARA and ARA oxylipins. Oxylipins derived from other n-6 PUFA were also reduced despite no or opposite effect on their PUFA levels. Each diet also resulted in higher levels of oxylipins almost exclusively derived from the supplemented PUFA, despite PUFA in the same biosynthetic pathway also often being increased. Further, while oxylipin differences often reflected changes to phospholipid PUFA, there were instances where they corresponded more closely to changes in neutral lipid PUFA. With respect to sex effects, >50% of lipoxygenase ARA-derived oxylipins were higher in males in at least one diet group, while multiple DHA oxylipins were lower in males only in rats provided the DHA diet. This fundamental description of oxylipin composition in the spleen, including the influence of diet and sex and the relationship to PUFA composition, will help inform future studies examining the functions of these oxylipins under physiological and pathological conditions.
Collapse
Affiliation(s)
- Samantha D Pauls
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.,Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
| | - Mariam Ragheb
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.,Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
| | - Tanja Winter
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.,Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
| | - Shan Leng
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Carla G Taylor
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.,Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada.,Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Peter Zahradka
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.,Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada.,Department of Physiology and Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Harold M Aukema
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.,Canadian Centre for Agri-Food Research in Health and Medicine, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
| |
Collapse
|
22
|
Mason RP, Libby P, Bhatt DL. Emerging Mechanisms of Cardiovascular Protection for the Omega-3 Fatty Acid Eicosapentaenoic Acid. Arterioscler Thromb Vasc Biol 2020; 40:1135-1147. [PMID: 32212849 PMCID: PMC7176343 DOI: 10.1161/atvbaha.119.313286] [Citation(s) in RCA: 218] [Impact Index Per Article: 54.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Patients with well-controlled LDL (low-density lipoprotein) levels still have residual cardiovascular risk associated with elevated triglycerides. Epidemiological studies have shown that elevated fasting triglyceride levels associate independently with incident cardiovascular events, and abundant recent human genetic data support the causality of TGRLs (triglyceride-rich lipoproteins) in atherothrombosis. Omega-3 fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), lower blood triglyceride concentrations but likely exert additional atheroprotective properties at higher doses. Omega-3 fatty acids modulate T-cell differentiation and give rise to various prostaglandins and specialized proresolving lipid mediators that promote resolution of tissue injury and inflammation. The REDUCE-IT (Reduction of Cardiovascular Events with Icosapent Ethyl–Intervention Trial) with an EPA-only formulation lowered a composite of cardiovascular events by 25% in patients with established cardiovascular disease or diabetes mellitus and other cardiovascular risk factors. This clinical benefit likely arises from multiple molecular mechanisms discussed in this review. Indeed, human plaques readily incorporate EPA, which may render them less likely to trigger clinical events. EPA and DHA differ in their effects on membrane structure, rates of lipid oxidation, inflammatory biomarkers, and endothelial function as well as tissue distributions. Trials that have evaluated DHA-containing high-dose omega-3 fatty acids have thus far not shown the benefits of EPA alone demonstrated in REDUCE-IT. This review will consider the mechanistic evidence that helps to understand the potential mechanisms of benefit of EPA.
Collapse
Affiliation(s)
- R Preston Mason
- From the Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (R.P.M., P.L., D.L.B.).,Elucida Research LLC, Beverly, MA (R.P.M.)
| | - Peter Libby
- From the Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (R.P.M., P.L., D.L.B.)
| | - Deepak L Bhatt
- From the Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (R.P.M., P.L., D.L.B.)
| |
Collapse
|
23
|
Barkhordari S, Mirmosayyeb O, Mansourian M, Hosseininasab F, Ramezani S, Barzegar M, Amin MM, Poursafa P, Esmaeil N, Kelishadi R. Omega 3 Supplementation Can Regulate Inflammatory States in Gas Station Workers: A Double-Blind Placebo-Controlled Clinical Trial. J Interferon Cytokine Res 2020; 40:262-267. [PMID: 32176565 DOI: 10.1089/jir.2019.0220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Environmental exposure to diesel particulate matter and commercial gasoline in gas station workers might induce oxidative stress and changes in the balance of the immune system. In this study, the immunomodulatory impacts of omega 3 fatty acid (ω3FA) supplement were assessed on inflammatory and anti-inflammatory markers in gas station workers in a double-blind placebo-controlled clinical trial. Fifty-three men working in gas stations were treated with ω3FA (n = 29) or placebo (n = 24) for 60 days. C-reactive protein, interleukin-12 (IL-12), transforming growth factor β (TGF-β), interferon γ (IFN-γ), tumor necrosis factor α, IL-10, and IL-17 levels were measured by enzyme-linked immunosorbent assay method before and after the completion of the trial. The concentrations of IFN-γ and IL-17 were significantly decreased in ω3FA group compared with the placebo group (P < 0.001). Moreover, the levels of inhibitory cytokines including TGF-β and IL-10 significantly were increased in ω3FA group (P < 0.001). Overall, ω3FA nutritional supplementation can be useful in reducing inflammatory immune responses and maintaining immune tolerance in people with high exposure to inflammation-inducing factors. [Figure: see text].
Collapse
Affiliation(s)
- Shoresh Barkhordari
- Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.,Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Omid Mirmosayyeb
- Isfahan Neurosciences Research Center, Alzahra Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.,Universal Council of Epidemiology (UCE), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Marjan Mansourian
- Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fahimeh Hosseininasab
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Saba Ramezani
- Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahdi Barzegar
- Student Research Committee, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Mehdi Amin
- Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parinaz Poursafa
- Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nafiseh Esmaeil
- Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Roya Kelishadi
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| |
Collapse
|
24
|
Antioxidants as a Potential Target against Inflammation and Oxidative Stress in Attention-Deficit/Hyperactivity Disorder. Antioxidants (Basel) 2020; 9:antiox9020176. [PMID: 32098021 PMCID: PMC7070894 DOI: 10.3390/antiox9020176] [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: 12/12/2019] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 12/22/2022] Open
Abstract
Psychostimulants and non-psychostimulants are the medications prescribed for the treatment of attention-deficit/hyperactivity disorder (ADHD). However, several adverse results have been linked with an increased risk of substance use and side effects. The pathophysiology of ADHD is not completely known, although it has been associated with an increase in inflammation and oxidative stress. This review presents an overview of findings following antioxidant treatment for ADHD and describes the potential amelioration of inflammation and oxidative stress using antioxidants that might have a future as multi-target adjuvant therapy in ADHD. The use of antioxidants against inflammation and oxidative conditions is an emerging field in the management of several neurodegenerative and neuropsychiatric disorders. Thus, antioxidants could be promising as an adjuvant ADHD therapy.
Collapse
|
25
|
Dietary Bioactive Fatty Acids as Modulators of Immune Function: Implications on Human Health. Nutrients 2019; 11:nu11122974. [PMID: 31817430 PMCID: PMC6950193 DOI: 10.3390/nu11122974] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 11/05/2019] [Accepted: 11/20/2019] [Indexed: 12/11/2022] Open
Abstract
Diet is major modifiable risk factor for cardiovascular disease that can influence the immune status of the individual and contribute to persistent low-grade inflammation. In recent years, there has been an increased appreciation of the role of polyunsaturated fatty acids (PUFA) in improving immune function and reduction of systemic inflammation via the modulation of pattern recognition receptors (PRR) on immune cells. Extensive research on the use of bioactive lipids such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) and their metabolites have illustrated the importance of these pro-resolving lipid mediators in modulating signaling through PRRs. While their mechanism of action, bioavailability in the blood, and their efficacy for clinical use forms an active area of research, they are found widely administered as marine animal-based supplements like fish oil and krill oil to promote health. The focus of this review will be to discuss the effect of these bioactive fatty acids and their metabolites on immune cells and the resulting inflammatory response, with a brief discussion about modern methods for their analysis using mass spectrometry-based methods.
Collapse
|
26
|
Gutiérrez S, Svahn SL, Johansson ME. Effects of Omega-3 Fatty Acids on Immune Cells. Int J Mol Sci 2019; 20:ijms20205028. [PMID: 31614433 PMCID: PMC6834330 DOI: 10.3390/ijms20205028] [Citation(s) in RCA: 246] [Impact Index Per Article: 49.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 09/27/2019] [Accepted: 10/02/2019] [Indexed: 12/14/2022] Open
Abstract
Alterations on the immune system caused by omega-3 fatty acids have been described for 30 years. This family of polyunsaturated fatty acids exerts major alterations on the activation of cells from both the innate and the adaptive immune system, although the mechanisms for such regulation are diverse. First, as a constitutive part of the cellular membrane, omega-3 fatty acids can regulate cellular membrane properties, such as membrane fluidity or complex assembly in lipid rafts. In recent years, however, a new role for omega-3 fatty acids and their derivatives as signaling molecules has emerged. In this review, we describe the latest findings describing the effects of omega-3 fatty acids on different cells from the immune system and their possible molecular mechanisms.
Collapse
Affiliation(s)
- Saray Gutiérrez
- Department of Physiology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden.
| | - Sara L Svahn
- Department of Physiology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden.
| | - Maria E Johansson
- Department of Physiology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden.
| |
Collapse
|
27
|
Abstract
The prevalence of food allergy is raising in industrialized countries, but the mechanisms behind this increased incidence are not fully understood. Environmental factors are believed to play a role in allergic diseases, including lifestyle influences, such as diet. There is a close relationship between allergens and lipids, with many allergenic proteins having the ability to bind lipids. Dietary lipids exert pro-inflammatory or anti-inflammatory functions on cells of the innate immunity and influence antigen presentation to cells of the adaptive immunity. In addition to modifying the immunostimulating properties of proteins, lipids also alter their digestibility and intestinal absorption, changing allergen bioavailability. This study provides an overview of the role of dietary lipids in food allergy, taking into account epidemiological information, as well as results of mechanistic investigations using in vivo, ex vivo and in vitro models. The emerging link among high-fat diets, obesity, and allergy is also discussed.
Collapse
Affiliation(s)
- Rosina López-Fandiño
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Madrid, Spain
| |
Collapse
|
28
|
Chehimi M, Ward R, Pestel J, Robert M, Pesenti S, Bendridi N, Michalski MC, Laville M, Vidal H, Eljaafari A. Omega-3 Polyunsaturated Fatty Acids Inhibit IL-17A Secretion through Decreased ICAM-1 Expression in T Cells Co-Cultured with Adipose-Derived Stem Cells Harvested from Adipose Tissues of Obese Subjects. Mol Nutr Food Res 2019; 63:e1801148. [PMID: 30848861 DOI: 10.1002/mnfr.201801148] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 02/22/2019] [Indexed: 12/12/2022]
Abstract
SCOPE Obese adipose tissue (AT) is infiltrated by inflammatory immune cells including IL-17A-producing-T (Th17) cells. It has been previously demonstrated that adipose-derived stem cells from obese (ob-ASCs), but not lean AT promote Th17 cells. Because n-3 PUFAs are known to inhibit obese AT inflammation, it is tested here whether they could inhibit ob-ASC-mediated IL-17A secretion. METHODS AND RESULTS The n-3 PUFA precursor, alpha-linolenic acid (ALA), or its derivatives, eicosapentaenoic, or docosahexaenoic acid, is added to co-cultures of human ob-ASCs and mononuclear cells (MNCs). All three inhibited IL-17A, but not IL-1β, IL-6, nor TNFα secretion. As a control, palmitic acid (PA), a saturated fatty acid, did not inhibit IL-17A secretion. ALA also inhibited IL-17A secretion mediated by adipocytes differentiated from ob-ASCs. Toll-like-receptor 4 is shown to be involved in ob-ASC-mediated-IL-17A secretion, and to be inhibited by ALA, together with Cyclo-Oxygenase-2 and Signal-Transducer-and-Activator-of-transcription-3. In addition, ALA down-regulated Intercellular-Adhesion-Molecule-1 (ICAM-1) expression in both monocytes and ASCs, which resulted in decreased interactions between ob-ASCs and MNCs, and inhibition of IL-17A secretion. CONCLUSION It is demonstrated herein that ALA inhibits Th17 cell promotion, through decreased ICAM-1expression in both ob-ASCs and monocytes. This novel mechanism may contribute to explain the beneficial effects of n-3 PUFA in IL-17A-related inflammatory pathologies.
Collapse
Affiliation(s)
- Marwa Chehimi
- INSERM U 1060-CarMen, University Claude Bernard Lyon I, 165 Chemin du Grand Revoyet, 69310, Pierre Bénite, France
| | - Robert Ward
- Department of Nutrition, Dietetics, and Food Sciences, Utah State University, Old Main Hill, Logan, Utah, 84322, USA
| | - Julien Pestel
- INSERM U 1060-CarMen, University Claude Bernard Lyon I, 165 Chemin du Grand Revoyet, 69310, Pierre Bénite, France
| | - Maud Robert
- Department of Surgery in Gastro-enterology, Edouard Herriot Hospital, 1 place d'Arsonval, 69003, Lyon, France
| | - Sandra Pesenti
- INSERM U 1060-CarMen, University Claude Bernard Lyon I, 165 Chemin du Grand Revoyet, 69310, Pierre Bénite, France
| | - Nadia Bendridi
- INSERM U 1060-CarMen, University Claude Bernard Lyon I, 165 Chemin du Grand Revoyet, 69310, Pierre Bénite, France
| | - Marie-Caroline Michalski
- INSERM U 1060-CarMen, University Claude Bernard Lyon I, 165 Chemin du Grand Revoyet, 69310, Pierre Bénite, France
| | - Martine Laville
- INSERM U 1060-CarMen, University Claude Bernard Lyon I, 165 Chemin du Grand Revoyet, 69310, Pierre Bénite, France.,Department of Nutrition, South Lyon Hospital, Hospices Civils de Lyon, 165 Chemin du Grand Revoyet, 69310, Pierre Bénite, France
| | - Hubert Vidal
- INSERM U 1060-CarMen, University Claude Bernard Lyon I, 165 Chemin du Grand Revoyet, 69310, Pierre Bénite, France
| | - Assia Eljaafari
- INSERM U 1060-CarMen, University Claude Bernard Lyon I, 165 Chemin du Grand Revoyet, 69310, Pierre Bénite, France.,Research DO-IT Team, Hospices Civils de Lyon, Faculte de Medecine Lyon Sud, Inserm U1060-CarMen, 165 Chemin du Grand Revoyet, 69310, Pierre Bénite, France
| |
Collapse
|
29
|
Wu D, Lewis ED, Pae M, Meydani SN. Nutritional Modulation of Immune Function: Analysis of Evidence, Mechanisms, and Clinical Relevance. Front Immunol 2019; 9:3160. [PMID: 30697214 PMCID: PMC6340979 DOI: 10.3389/fimmu.2018.03160] [Citation(s) in RCA: 198] [Impact Index Per Article: 39.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 12/21/2018] [Indexed: 12/12/2022] Open
Abstract
It is well-established that the nutritional deficiency or inadequacy can impair immune functions. Growing evidence suggests that for certain nutrients increased intake above currently recommended levels may help optimize immune functions including improving defense function and thus resistance to infection, while maintaining tolerance. This review will examine the data representing the research on prominent intervention agents n-3 polyunsaturated fatty acids (PUFA), micronutrients (zinc, vitamins D and E), and functional foods including probiotics and tea components for their immunological effects, working mechanisms, and clinical relevance. Many of these nutritive and non-nutritive food components are related in their functions to maintain or improve immune function including inhibition of pro-inflammatory mediators, promotion of anti-inflammatory functions, modulation of cell-mediated immunity, alteration of antigen-presenting cell functions, and communication between the innate and adaptive immune systems. Both animal and human studies present promising findings suggesting a clinical benefit of vitamin D, n-3 PUFA, and green tea catechin EGCG in autoimmune and inflammatory disorders, and vitamin D, vitamin E, zinc, and probiotics in reduction of infection. However, many studies report divergent and discrepant results/conclusions due to various factors. Chief among them, and thus call for attention, includes more standardized trial designs, better characterized populations, greater consideration for the intervention doses used, and more meaningful outcome measurements chosen.
Collapse
Affiliation(s)
- Dayong Wu
- Nutritional Immunology Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
| | - Erin D Lewis
- Nutritional Immunology Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
| | - Munyong Pae
- Department of Food and Nutrition, Chungbuk National University, Cheongju, South Korea
| | - Simin Nikbin Meydani
- Nutritional Immunology Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, United States
| |
Collapse
|
30
|
Saito-Sasaki N, Sawada Y, Mashima E, Yamaguchi T, Ohmori S, Yoshioka H, Haruyama S, Okada E, Nakamura M. Maresin-1 suppresses imiquimod-induced skin inflammation by regulating IL-23 receptor expression. Sci Rep 2018; 8:5522. [PMID: 29615641 PMCID: PMC5882824 DOI: 10.1038/s41598-018-23623-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 03/15/2018] [Indexed: 01/17/2023] Open
Abstract
The anti-inflammatory effect of omega 3 polyunsaturated fatty acids has been confirmed in various inflammatory disease models. Maresin-1 (MaR1) is a lipid mediator derived from the omega-3 fatty acid docosahexaenoic acid (DHA) that has displayed strong anti-inflammatory effects in various inflammatory disease models. However, the effect of topical MaR1 on cutaneous inflammation remains unclear. Therefore, we initially examined the anti-inflammatory effects of topical Maresin-1 using an imiquimod (IMQ)-induced psoriasis-like mouse model of inflammation. Topical MaR1 reduced the ear swelling response as seen in histological findings. RT-PCR and flow cytometry analyses revealed MaR1 had no inhibitory effect on IL-23, but MaR1 suppressed IL-17A production by γδTCRmid+ and CD4+ cells in the skin. These inhibitory effects were also observed in a subcutaneous IL-23-injected psoriasis model. MaR1 downmodulated IL-23 receptor (IL-23R) expression by suppressing retinoic acid-related orphan receptor γt (RORγt) expression and internalization in a clathrin-dependent manner in γδTCRmid+ and CD4+ cells. These results lead to assumptions that topical MaR1 may be a new therapeutic agent for psoriasis and other IL-17-mediated cutaneous inflammatory diseases.
Collapse
Affiliation(s)
- Natsuko Saito-Sasaki
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan.
| | - Yu Sawada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan.
| | - Emi Mashima
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - Takashi Yamaguchi
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - Shun Ohmori
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - Haruna Yoshioka
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - Sanehito Haruyama
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - Etsuko Okada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - Motonobu Nakamura
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| |
Collapse
|
31
|
Integrated Immunomodulatory Mechanisms through which Long-Chain n-3 Polyunsaturated Fatty Acids Attenuate Obese Adipose Tissue Dysfunction. Nutrients 2017; 9:nu9121289. [PMID: 29186929 PMCID: PMC5748740 DOI: 10.3390/nu9121289] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/14/2017] [Accepted: 11/16/2017] [Indexed: 12/13/2022] Open
Abstract
Obesity is a global health concern with rising prevalence that increases the risk of developing other chronic diseases. A causal link connecting overnutrition, the development of obesity and obesity-associated co-morbidities is visceral adipose tissue (AT) dysfunction, characterized by changes in the cellularity of various immune cell populations, altered production of inflammatory adipokines that sustain a chronic state of low-grade inflammation and, ultimately, dysregulated AT metabolic function. Therefore, dietary intervention strategies aimed to halt the progression of obese AT dysfunction through any of the aforementioned processes represent an important active area of research. In this connection, fish oil-derived dietary long-chain n-3 polyunsaturated fatty acids (PUFA) in the form of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have been demonstrated to attenuate obese AT dysfunction through multiple mechanisms, ultimately affecting AT immune cellularity and function, adipokine production, and metabolic signaling pathways, all of which will be discussed herein.
Collapse
|
32
|
Lee DI, Kang SA, Md A, Jeong UC, Jin F, Kang SJ, Lee JY, Yu HS. Sea Cucumber Lipid-Soluble Extra Fraction Prevents Ovalbumin-Induced Allergic Airway Inflammation. J Med Food 2017; 21:21-29. [PMID: 29161525 DOI: 10.1089/jmf.2017.3994] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
In a previous study, our research group demonstrated that sea cucumber (Apostichopus japonicus) extracts ameliorated allergic airway inflammation through CD4+CD25+Foxp3+ T (regulatory T; Treg) cell activation and recruitment to the lung. In this study, we aimed to determine which components of sea cucumber contribute to the amelioration of airway inflammation. We used n-hexane fractionation to separate sea cucumber into three phases (n-hexane, alcohol, and solid) and evaluated the ability of each phase to elevate Il10 expression in splenocytes and ameliorate symptoms in mice with ovalbumin (OVA)/alum-induced asthma. Splenocytes treated with the n-hexane phase showed a significant increase in Il10 expression. In the n-hexane phase, 47 fatty acids were identified. Individual fatty acids that comprised at least 5% of the total fatty acids were 16:0, 16:1n-7, 18:0, 18:1n-7, 20:4n-6, and 20:5n-3 (eicosapentaenoic acid). After administering the n-hexane phase to mice with OVA/alum-induced asthma, their asthma symptoms were ameliorated. Several immunomodulatory effects were observed in the n-hexane phase-pretreated group, compared with a vehicle control group. First, eosinophil infiltration and goblet cell hyperplasia were significantly reduced around the airways. Second, the concentrations of Th2-related cytokines (IL-4, IL-5, and IL-13) and Th17-related cytokines (IL-17) were significantly decreased in the spleen and bronchoalveolar lavage fluid (BALF). Finally, the concentrations of TGF-β and IL-10, which are associated with Treg cells, were significantly increased in the BALF and splenocyte culture medium. In conclusion, a fatty acid-rich fraction (n-hexane phase) of sea cucumber extract ameliorated allergic airway inflammation in a mouse model.
Collapse
Affiliation(s)
- Da-In Lee
- 1 Department of Parasitology and Tropical Medicine, School of Medicine, Pusan National University , Yangsan-si, Republic of Korea.,2 Immunoregulatory Therapeutics Group in Brain Busan 21 Project , Yangsan-si, Republic of Korea
| | - Shin Ae Kang
- 1 Department of Parasitology and Tropical Medicine, School of Medicine, Pusan National University , Yangsan-si, Republic of Korea.,2 Immunoregulatory Therapeutics Group in Brain Busan 21 Project , Yangsan-si, Republic of Korea
| | - Anisuzzaman Md
- 3 Department of Marine Biology and Aquaculture, Gyeonsang National University , Tongyeong, Republic of Korea
| | - U-Cheol Jeong
- 3 Department of Marine Biology and Aquaculture, Gyeonsang National University , Tongyeong, Republic of Korea
| | - Feng Jin
- 3 Department of Marine Biology and Aquaculture, Gyeonsang National University , Tongyeong, Republic of Korea
| | - Seok-Joong Kang
- 3 Department of Marine Biology and Aquaculture, Gyeonsang National University , Tongyeong, Republic of Korea
| | | | - Hak Sun Yu
- 1 Department of Parasitology and Tropical Medicine, School of Medicine, Pusan National University , Yangsan-si, Republic of Korea.,2 Immunoregulatory Therapeutics Group in Brain Busan 21 Project , Yangsan-si, Republic of Korea
| |
Collapse
|
33
|
Mousavi Nasl-Khameneh A, Mirshafiey A, Naser Moghadasi A, Chahardoli R, Mahmoudi M, Parastouei K, Yekaninejad MS, Saboor-Yaraghi AA. Combination treatment of docosahexaenoic acid (DHA) and all-trans-retinoic acid (ATRA) inhibit IL-17 and RORγt gene expression in PBMCs of patients with relapsing-remitting multiple sclerosis. Neurol Res 2017; 40:11-17. [PMID: 29155646 DOI: 10.1080/01616412.2017.1382800] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVES Multiple sclerosis (MS) is a demyelinating disorder with a complex autoimmune pathophysiology. Its initiation and progression correlate with IL-17 and the related transcription factor, RORγt. All-trans retinoic acid (ATRA) is a bioactive derivative of vitamin A, and docosahexaenoic acid (DHA) is an active metabolite of omega-3 fatty acid; both have immunomodulatory effects in many immune disorders. This study investigated the effects of DHA and ATRA individually and in combination on IL-17 and RORγt gene expression in peripheral blood mononuclear cells (PBMCs) of relapsing-remitting MS (RRMS) patients who were receiving interferon beta (IFN-β). METHODS The PBMCs of 15 RRMS patients were treated in vitro with 1 μM of ATRA and 15 μM of DHA as single and combination treatments for assessing probable additive or synergistic effects. RESULTS The results showed that single treatment of ATRA (p = 0.05) could significantly decrease the expression of IL-17 gene and single treatment of ATRA (p = 0.04) and single treatment of DHA (p = 0.05) induced significant inhibition on the expression of RORγt gene. The suppressive effect of combined treatment with ATRA and DHA on IL-17 (p = 0.02) and RORγt (p = 0.01) was also found significant showing that the combined treatments can have additive effects. DISCUSSION These results indicate that both DHA and ATRA might help control disease progression in IFN-β treated RRMS patients with the strongest effects produced by a combination of the two compounds.
Collapse
Affiliation(s)
- Ateke Mousavi Nasl-Khameneh
- a Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, International Campus , Tehran University of Medical Sciences , Tehran , Iran
| | - Abbas Mirshafiey
- b Department of Immunology, School of Public Health , Tehran University of Medical Sciences , Tehran , Iran
| | - Abdorreza Naser Moghadasi
- c Department of Neurology and MS Research Center, Neuroscience Institute , Sina Hospital, Tehran University of Medical Sciences , Tehran , Iran
| | - Reza Chahardoli
- d Endocrine Research Center, Research Institute for Endocrine Sciences , Shahid Beheshti University of Medical Sciences , Tehran , Iran
| | - Maryam Mahmoudi
- e Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics , Tehran University of Medical Sciences , Tehran , Iran
| | - Karim Parastouei
- e Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics , Tehran University of Medical Sciences , Tehran , Iran
| | - Mir Saeed Yekaninejad
- f Department of Epidemiology and Biostatistics, School of Public Health , Tehran University of Medical Sciences , Tehran , Iran
| | - Ali Akbar Saboor-Yaraghi
- b Department of Immunology, School of Public Health , Tehran University of Medical Sciences , Tehran , Iran.,e Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics , Tehran University of Medical Sciences , Tehran , Iran
| |
Collapse
|
34
|
Eicosapentaenoic acid and 5-HEPE enhance macrophage-mediated Treg induction in mice. Sci Rep 2017; 7:4560. [PMID: 28676689 PMCID: PMC5496870 DOI: 10.1038/s41598-017-04474-2] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 05/16/2017] [Indexed: 01/05/2023] Open
Abstract
Eicosapentaenoic acid (EPA) is an omega-3 fatty acid with immunomodulatory and anti-inflammatory effects. Beyond its direct effects, the metabolic products of EPA also regulate various immune responses. Animal experiments demonstrated that EPA reduces adipose inflammation in high fat diet-induced obese mouse. However, the effects of EPA on infiltrated immune cell populations in adipose tissue and underlying mechanisms remain to be elucidated. We performed flow cytometry of stromal vascular fraction of epididymal adipose tissues from C57BL/6J and ob/ob mice fed normal chow mixed with or without 5% EPA. The numbers of hematopoietic cells, including Tregs, were higher in both C57BL/6J and ob/ob mice fed EPA diet compared with control diet. EPA enhanced the induction of Tregs in co-cultures of adipose tissue macrophages (ATMs) and naïve T cells. Among EPA metabolites, 5-HEPE was the most potent inducer of Tregs. GPR119 and GPR120 are receptors for 5-HEPE and EPA, respectively, and antagonist of GPR119 blocked Treg induction by EPA in the presence of ATMs. Alox5 gene encodes 5-lipoxygenase enzyme catalyzing EPA into 5-HEPE, and inhibitor of 5-lipoxygenase down-regulated EPA-mediated induction of adipose tissue Tregs in ob/ob mice. The study findings demonstrated that both EPA and 5-HEPE enhance ATM-mediated Treg induction.
Collapse
|
35
|
Miccadei S, Masella R, Mileo AM, Gessani S. ω3 Polyunsaturated Fatty Acids as Immunomodulators in Colorectal Cancer: New Potential Role in Adjuvant Therapies. Front Immunol 2016; 7:486. [PMID: 27895640 PMCID: PMC5108786 DOI: 10.3389/fimmu.2016.00486] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 10/21/2016] [Indexed: 12/13/2022] Open
Abstract
Diet composition may affect the onset and progression of chronic degenerative diseases, including cancer, whose pathogenesis relies on inflammatory processes. Growing evidence indicates that diet and its components critically contribute to human health, affecting the immune system, secretion of adipokines, and metabolic pathways. Colorectal cancer (CRC) is one of the leading causes of death worldwide. Antineoplastic drugs are widely used for CRC treatment, but drug resistance and/or off-target toxicity limit their efficacy. Dietary ω3 polyunsaturated fatty acids (PUFA) have been gaining great interest in recent years as possible anti-inflammatory and anticancer agents, especially in areas such as the large bowel, where the pro-inflammatory context promotes virtually all steps of colon carcinogenesis. Growing epidemiological, experimental, and clinical evidence suggests that ω3 PUFA may play a role in several stages of CRC management exhibiting antineoplastic activity against human CRC cells, improving the efficacy of radiation and chemotherapy, ameliorating cancer-associated secondary complications, and preventing CRC recurrence. These effects are most likely related to the immunomodulatory activities of ω3 PUFA that are able to influence several aspects of the inflammatory process ranging from inflammasome activation, leukocyte recruitment, production of immune mediators to differentiation, and activation of immune cells. In this review, we will focus on the potential use of ω3 PUFA as adjuvant agents together with chemo/radiotherapy, highlighting the immunomodulatory effects most likely responsible for their beneficial effects in different stages of CRC management.
Collapse
Affiliation(s)
- Stefania Miccadei
- Unit of Tumor Immunology and Immunotherapy, Department of Research, Advanced Diagnostic and Technological Innovation, Regina Elena National Cancer Institute , Rome , Italy
| | - Roberta Masella
- Department of Veterinary Public Health and Food Safety, Istituto Superiore di Sanità , Rome , Italy
| | - Anna Maria Mileo
- Unit of Tumor Immunology and Immunotherapy, Department of Research, Advanced Diagnostic and Technological Innovation, Regina Elena National Cancer Institute , Rome , Italy
| | - Sandra Gessani
- Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità , Rome , Italy
| |
Collapse
|
36
|
|
37
|
Shaikh SR, Fessler MB, Gowdy KM. Role for phospholipid acyl chains and cholesterol in pulmonary infections and inflammation. J Leukoc Biol 2016; 100:985-997. [PMID: 27286794 PMCID: PMC5069085 DOI: 10.1189/jlb.4vmr0316-103r] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 05/19/2016] [Indexed: 12/15/2022] Open
Abstract
Review on how complex mixtures of bioactive lipids and cholesterol may influence the pulmonary immune response during infection. Bacterial and viral respiratory tract infections result in millions of deaths worldwide and are currently the leading cause of death from infection. Acute inflammation is an essential element of host defense against infection, but can be damaging to the host when left unchecked. Effective host defense requires multiple lipid mediators, which collectively have proinflammatory and/or proresolving effects on the lung. During pulmonary infections, phospholipid acyl chains and cholesterol can be chemically and enzymatically oxidized, as well as truncated and modified, producing complex mixtures of bioactive lipids. We review recent evidence that phospholipids and cholesterol and their derivatives regulate pulmonary innate and adaptive immunity during infection. We first highlight data that oxidized phospholipids generated in the lung during infection stimulate pattern recognition receptors, such as TLRs and scavenger receptors, thereby amplifying the pulmonary inflammatory response. Next, we discuss evidence that oxidation of endogenous pools of cholesterol during pulmonary infections produces oxysterols that also modify the function of both innate and adaptive immune cells. Last, we conclude with data that n‐3 polyunsaturated fatty acids, both in the form of phospholipid acyl chains and through enzymatic processing into endogenous proresolving lipid mediators, aid in the resolution of lung inflammation through distinct mechanisms. Unraveling the complex mechanisms of induction and function of distinct classes of bioactive lipids, both native and modified, may hold promise for developing new therapeutic strategies for improving pulmonary outcomes in response to infection.
Collapse
Affiliation(s)
- Saame Raza Shaikh
- Department of Biochemistry and Molecular Biology, East Carolina Diabetes and Obesity Institute, East Carolina Heart Institute, Brody School of Medicine, East Carolina University (ECU), Greenville, North Carolina, USA
| | - Michael B Fessler
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health (NIEHS/NIH), Research Triangle Park, North Carolina, USA
| | - Kymberly M Gowdy
- Department of Pharmacology and Toxicology, Brody School of Medicine, East Carolina University, Greenville, North Carolina, USA;
| |
Collapse
|
38
|
Huang CH, Hou YC, Pai MH, Yeh CL, Yeh SL. Dietary ω-6/ω-3 Polyunsaturated Fatty Acid Ratios Affect the Homeostasis of Th/Treg Cells in Mice With Dextran Sulfate Sodium-Induced Colitis. JPEN J Parenter Enteral Nutr 2016; 41:647-656. [PMID: 27006408 DOI: 10.1177/0148607116638493] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND This study evaluated the effect of different dietary ω-6/ω-3 polyunsaturated fatty acid (PUFA) ratios on modulating helper T (Th) and regulatory T (Treg) lymphocytes in mice with dextran sulfate sodium (DSS)-induced colitis. METHODS There were 3 control and 3 colitis groups. Mice were fed for 24 days with diets with soybean oil (S), a mixture of soybean oil and low fish oil content (LF), or high fish oil content (HF). The ratio of ω-6/ω-3 PUFA in the LF diet was 4:1, and that in the HF diet was 2:1. The control groups drank distilled water while colitis groups were provided 2% DSS in drinking water during days 15-19. All mice drank distilled water from days 20-24 for recovery and were sacrificed on day 25. RESULTS Colitis resulted in higher blood Th1, Th2, and Th17 and lower Treg percentages. Also, plasma haptoglobin and proinflammatory chemokines were elevated in colon lavage fluid. Colitic groups with fish oil had lower inflammatory mediators in the plasma and colon lavage fluid. Furthermore, the percentages of blood Th1, Th2, and Th17 cells were lower, whereas Treg cell percentages were higher than those in the soybean oil group. The colitis group with an ω-6/ω-3 PUFA ratio of 2:1 had more pronounced effects than the group with a ratio of 4:1. CONCLUSIONS Diets with an ω-6/ω-3 PUFA ratio of 2:1 or 4:1 regulate the Th/Treg balance and attenuate inflammatory mediator production in colitis. Compared with the ω-6/ω-3 PUFA ratio of 4:1, the ratio of 2:1 was more effective in reducing inflammatory reactions in DSS-induced colitis.
Collapse
Affiliation(s)
- Cyoung-Huei Huang
- 1 School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Yu-Chen Hou
- 2 Master Program in Food Safety, College of Nutrition, Taipei Medical University, Taipei, Taiwan
| | - Man-Hui Pai
- 3 Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chiu-Li Yeh
- 4 Department of Nutrition and Health Science, Chinese Culture University, Taipei, Taiwan
| | - Sung-Ling Yeh
- 1 School of Nutrition and Health Sciences, College of Nutrition, Taipei Medical University, Taipei, Taiwan.,2 Master Program in Food Safety, College of Nutrition, Taipei Medical University, Taipei, Taiwan
| |
Collapse
|
39
|
Wang C, Yosef N, Gaublomme J, Wu C, Lee Y, Clish CB, Kaminski J, Xiao S, Meyer Zu Horste G, Pawlak M, Kishi Y, Joller N, Karwacz K, Zhu C, Ordovas-Montanes M, Madi A, Wortman I, Miyazaki T, Sobel RA, Park H, Regev A, Kuchroo VK. CD5L/AIM Regulates Lipid Biosynthesis and Restrains Th17 Cell Pathogenicity. Cell 2015; 163:1413-27. [PMID: 26607793 DOI: 10.1016/j.cell.2015.10.068] [Citation(s) in RCA: 270] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 08/18/2015] [Accepted: 10/15/2015] [Indexed: 12/31/2022]
Abstract
Th17 cells play a critical role in host defense against extracellular pathogens and tissue homeostasis but can induce autoimmunity. The mechanisms implicated in balancing "pathogenic" and "non-pathogenic" Th17 cell states remain largely unknown. We used single-cell RNA-seq to identify CD5L/AIM as a regulator expressed in non-pathogenic, but not in pathogenic Th17 cells. Although CD5L does not affect Th17 differentiation, it is a functional switch that regulates the pathogenicity of Th17 cells. Loss of CD5L converts non-pathogenic Th17 cells into pathogenic cells that induce autoimmunity. CD5L mediates this effect by modulating the intracellular lipidome, altering fatty acid composition and restricting cholesterol biosynthesis and, thus, ligand availability for Rorγt, the master transcription factor of Th17 cells. Our study identifies CD5L as a critical regulator of the Th17 cell functional state and highlights the importance of lipid metabolism in balancing immune protection and disease induced by T cells.
Collapse
Affiliation(s)
- Chao Wang
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Nir Yosef
- Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA 02142, USA; Department of Electrical Engineering and Computer Science, University of California, Berkeley, Berkeley, CA 94720, USA; Center for Computational Biology, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Jellert Gaublomme
- Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA 02142, USA; Department of Chemistry and Chemical Biology and Department of Physics, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA
| | - Chuan Wu
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Youjin Lee
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Clary B Clish
- Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA 02142, USA
| | - Jim Kaminski
- Center for Computational Biology, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Sheng Xiao
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Gerd Meyer Zu Horste
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Mathias Pawlak
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Yasuhiro Kishi
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA; Mitsubishi Tanabe Pharma Corporation, Kamoshida-cho 1000, Yokohama, 225-0002, Japan
| | - Nicole Joller
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Katarzyna Karwacz
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Chen Zhu
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Maria Ordovas-Montanes
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Asaf Madi
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA 02142, USA
| | - Ivo Wortman
- Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA 02142, USA
| | - Toru Miyazaki
- Laboratory of Molecular Biomedicine for Pathogenesis, Center for Disease Biology and Integrative Medicine, Faculty of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Raymond A Sobel
- Palo Alto Veteran's Administration Health Care System and Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Hongkun Park
- Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA 02142, USA; Department of Chemistry and Chemical Biology and Department of Physics, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA
| | - Aviv Regev
- Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA 02142, USA; Howard Hughes Medical Institute and David H. Koch Institute for Integrative Cancer Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 20140, USA.
| | - Vijay K Kuchroo
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, 415 Main Street, Cambridge, MA 02142, USA.
| |
Collapse
|
40
|
Han YY, Forno E, Brehm JM, Acosta-Pérez E, Alvarez M, Colón-Semidey A, Rivera-Soto W, Campos H, Litonjua AA, Alcorn JF, Canino G, Celedón JC. Diet, interleukin-17, and childhood asthma in Puerto Ricans. Ann Allergy Asthma Immunol 2015; 115:288-293.e1. [PMID: 26319606 PMCID: PMC4721241 DOI: 10.1016/j.anai.2015.07.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 07/03/2015] [Accepted: 07/08/2015] [Indexed: 12/27/2022]
Abstract
BACKGROUND Dietary patterns might influence the pathogenesis of asthma in Puerto Ricans, the ethnic group most affected by this disease in the United States. OBJECTIVE To examine the association among diet, T-helper cell type 17 cytokines, and asthma in Puerto Rican children. METHODS As part of a case-control study of 678 Puerto Rican children 6 to 14 years old in San Juan, participants completed a 75-item questionnaire on the child's food consumption in the prior week. Foods were aggregated into 7 groups: fruits, vegetables, grains, protein foods, dairy, fats, and sweets. Logistic regression was used to evaluate consumption frequency of each group, plasma T-helper cell type 17 cytokine levels, and asthma. Based on this analysis, a food score (range -2 [unhealthy diet: high consumption of dairy products and sweets, low consumption of vegetables and grains] to +2 [healthy diet: high consumption of grains and vegetables, low consumption of dairy and sweets]) was created to identify dietary patterns. RESULTS High consumption of grains was associated with lower odds of asthma (adjusted odds ratio [aOR] 0.52, 95% confidence interval [CI] 0.33-0.82), whereas frequent consumption of dairy products (aOR 1.93, 95% CI 1.32-2.84) or sweets (aOR 1.82, 95% CI 1.08-2.72) was associated with higher odds of asthma. A healthier diet (each 1-point increment in food score) was associated with lower levels of interleukin-17F (β = -1.48 pg/mL, 95% CI -1.78 to -1.20) and with 36% decreased odds of asthma (aOR 0.64, 95% CI 0.53-0.77). CONCLUSION A healthy diet, with frequent consumption of vegetables and grains and low consumption of dairy products and sweets, was associated with lower levels of interleulin-17F and decreased odds of childhood asthma in Puerto Ricans.
Collapse
Affiliation(s)
- Yueh-Ying Han
- Division of Pediatric Pulmonary Medicine, Allergy, and Immunology, Children’s Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, PA
| | - Erick Forno
- Division of Pediatric Pulmonary Medicine, Allergy, and Immunology, Children’s Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, PA
| | - John M. Brehm
- Division of Pediatric Pulmonary Medicine, Allergy, and Immunology, Children’s Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, PA
| | - Edna Acosta-Pérez
- Behavioral Sciences Research Institute and Department of Pediatrics, University of Puerto Rico, San Juan, PR
| | - María Alvarez
- Behavioral Sciences Research Institute and Department of Pediatrics, University of Puerto Rico, San Juan, PR
| | - Angel Colón-Semidey
- Behavioral Sciences Research Institute and Department of Pediatrics, University of Puerto Rico, San Juan, PR
| | | | | | - Augusto A. Litonjua
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - John F. Alcorn
- Division of Pediatric Pulmonary Medicine, Allergy, and Immunology, Children’s Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, PA
| | - Glorisa Canino
- Behavioral Sciences Research Institute and Department of Pediatrics, University of Puerto Rico, San Juan, PR
| | - Juan C. Celedón
- Division of Pediatric Pulmonary Medicine, Allergy, and Immunology, Children’s Hospital of Pittsburgh of UPMC, University of Pittsburgh, Pittsburgh, PA
| |
Collapse
|
41
|
Generoso SDV, Rodrigues NM, Trindade LM, Paiva NC, Cardoso VN, Carneiro CM, Ferreira AVDM, Faria AMC, Maioli TU. Dietary supplementation with omega-3 fatty acid attenuates 5-fluorouracil induced mucositis in mice. Lipids Health Dis 2015; 14:54. [PMID: 26063053 PMCID: PMC4473827 DOI: 10.1186/s12944-015-0052-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 05/28/2015] [Indexed: 12/14/2022] Open
Abstract
Background Studies showed the positive effects of omega-3 fatty acid (n-3 FA) for the treatment of inflammatory bowel disease as it alleviated the symptoms and promoted better mucosal integrity. The objective of this study was to determine whether a diet with the addition of n-3 FA helps control the inflammation observed in 5-fluorouracil (5-FU) induced mucositis. Methods BALB/c mice were randomly divided into four groups as follows: 1: control (CTL), fed a standard chow diet; 2: CTL + n-3 FA – n-3 FA, fed a diet with n-3; 3: mucositis (MUC), fed a standard chow diet and subjected to mucositis; and 4: MUC+ n-3 FA, fed a diet with n-3 FA and subjected to mucositis. On the 8th day, the animals of the MUC and MUC + n-3 FA groups received an intraperitoneal injection of 300 mg/kg 5-FU for mucositis induction. After 24 h or 72 h, all mice were euthanized and evaluated for intestinal permeability, bacterial translocation, intestinal histology and apoptosis. Results Mice that received the diet with n-3 FA and a 5-FU injection showed less weight loss compared to the animals of the MUC group (p < 0.005). Decreased intestinal permeability and bacterial translocation were also observed in animals fed n-3 FA, and these mice underwent mucositis compared to the MUC group (p < 0.005). These data were associated with mucosal integrity and a reduced number of apoptotic cells in the ileum mucosa compared to the mice that received the control diet and 5-FU injection. Conclusion Together, these results show that omega-3 fatty acid decreases the mucosal damage caused by 5-FU-induced mucositis.
Collapse
Affiliation(s)
| | - Núbia Morais Rodrigues
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
| | - Luísa Martins Trindade
- Departamento de Nutrição, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
| | - Nivea Carolina Paiva
- Núcleo de Pesquisa em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil.
| | - Valbert Nascimento Cardoso
- Departamento de Análises Clínicas e Toxicológicas, Escola de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
| | - Cláudia Martins Carneiro
- Núcleo de Pesquisa em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Ouro Preto, Brazil.
| | | | - Ana Maria Caetano Faria
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
| | - Tatiani Uceli Maioli
- Departamento de Nutrição, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
| |
Collapse
|
42
|
Hou TY, McMurray DN, Chapkin RS. Omega-3 fatty acids, lipid rafts, and T cell signaling. Eur J Pharmacol 2015; 785:2-9. [PMID: 26001374 DOI: 10.1016/j.ejphar.2015.03.091] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Revised: 02/16/2015] [Accepted: 03/16/2015] [Indexed: 12/24/2022]
Abstract
n-3 polyunsaturated fatty acids (PUFA) have been shown in many clinical studies to attenuate inflammatory responses. Although inflammatory responses are orchestrated by a wide spectrum of cells, CD4(+) T cells play an important role in the etiology of many chronic inflammatory diseases such as inflammatory bowel disease and obesity. In light of recent concerns over the safety profiles of non-steroidal anti-inflammatory drugs (NSAIDs), alternatives such as bioactive nutraceuticals are becoming more attractive. In order for these agents to be accepted into mainstream medicine, however, the mechanisms by which nutraceuticals such as n-3 PUFA exert their anti-inflammatory effects must be fully elucidated. Lipid rafts are nanoscale, dynamic domains in the plasma membrane that are formed through favorable lipid-lipid (cholesterol, sphingolipids, and saturated fatty acids) and lipid-protein (membrane-actin cytoskeleton) interactions. These domains optimize the clustering of signaling proteins at the membrane to facilitate efficient cell signaling which is required for CD4(+) T cell activation and differentiation. This review summarizes novel emerging data documenting the ability of n-3 PUFA to perturb membrane-cytoskeletal structure and function in CD4(+) T cells. An understanding of these underlying mechanisms will provide a rationale for the use of n-3 PUFA in the treatment of chronic inflammation.
Collapse
Affiliation(s)
- Tim Y Hou
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, USA; Department of Nutrition and Food Science, Texas A&M University, College Station, TX, USA; Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX, USA
| | - David N McMurray
- Department of Nutrition and Food Science, Texas A&M University, College Station, TX, USA; Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX, USA; Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA; Department of Microbial Pathogenesis and Immunology, Texas A&M University System Health Science Center, College Station, TX, USA
| | - Robert S Chapkin
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX, USA; Department of Nutrition and Food Science, Texas A&M University, College Station, TX, USA; Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, TX, USA; Center for Translational Environmental Health Research, Texas A&M University, College Station, TX, USA; Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA; Department of Microbial Pathogenesis and Immunology, Texas A&M University System Health Science Center, College Station, TX, USA.
| |
Collapse
|
43
|
Mostafa GA, El-Khashab HY, Al-Ayadhi LY. A possible association between elevated serum levels of brain-specific auto-antibodies and reduced plasma levels of docosahexaenoic acid in autistic children. J Neuroimmunol 2015; 280:16-20. [PMID: 25773150 DOI: 10.1016/j.jneuroim.2015.01.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 12/05/2014] [Accepted: 01/26/2015] [Indexed: 11/19/2022]
Abstract
Polyunsaturated fatty acids (PUFAs) are not only essential for energy production, but they also exhibit a range of immunomodulatory properties that progress through T cell mediated events. Autoimmunity may have a pathogenic role in a subgroup of autistic children. This study is the first to investigate the relationship between serum levels of anti-myelin basic protein (anti-MBP) brain-specific auto-antibodies and reduced plasma levels of PUFAs in autistic children. Plasma levels of PUFAs (including linoleic, alphalinolenic, arachidonic "AA" and docosahexaenoic "DHA" acids) and serum anti-MBP were measured in 80 autistic children, aged between 4 and 12 years, and 80 healthy-matched children. Autistic patients had significantly lower plasma levels of PUFAs than healthy children. On the other hand, ω6/ω3 ratio (AA/DHA) was significantly higher in autistic patients than healthy children. Low plasma DHA, AA, linolenic and linoleic acids were found in 67.5%, 50%, 40% and 35%, respectively of autistic children. On the other hand, 70% of autistic patients had elevated ω6/ω3 ratio. Autistic patients with increased serum levels of anti-MBP auto-antibodies (75%) had significantly lower plasma DHA (P<0.5) and significantly higher ω6/ω3 ratio (P<0.5) than patients who were seronegative for these antibodies. In conclusions, some autistic children have a significant positive association between reduced levels of plasma DHA and increased serum levels of anti-MBP brain-specific auto-antibodies. However, replication studies of larger samples are recommended to validate whether reduced levels of plasma PUFAs are a mere association or have a role in the induction of the production of anti-MBP in some autistic children.
Collapse
Affiliation(s)
- Gehan A Mostafa
- Department of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt; Autism Research and Treatment Center, AL-Amodi Autism Research Chair, Department of Physiology, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia.
| | - Heba Y El-Khashab
- Department of Pediatrics, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Laila Y Al-Ayadhi
- Autism Research and Treatment Center, AL-Amodi Autism Research Chair, Department of Physiology, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia
| |
Collapse
|
44
|
Gurzell EA, Teague H, Duriancik D, Clinthorne J, Harris M, Shaikh SR, Fenton JI. Marine fish oils are not equivalent with respect to B-cell membrane organization and activation. J Nutr Biochem 2014; 26:369-77. [PMID: 25616447 DOI: 10.1016/j.jnutbio.2014.11.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 10/29/2014] [Accepted: 11/05/2014] [Indexed: 12/29/2022]
Abstract
We previously reported that docosahexaenoic-acid (DHA)-enriched fish oil (DFO) feeding altered B-cell membrane organization and enhanced B-cell function. The purpose of this study was to evaluate whether menhaden oil (MO) and eicosapentaenoic-acid (EPA)-enriched fish oil (EFO) alters B-cell function/phenotype similarly. Mice were fed control (CON), MO, EFO or DFO diets for 5weeks. We evaluated the fatty acid composition of B-cell phospholipids, membrane microdomain organization, ex vivo B-cell functionality and in vivo B-cell subsets. Red blood cells and B cells were found to be strongly (r>0.85) and significantly (P<.001) correlated for major n-3 and n-6 long-chain polyunsaturated fatty acids (LCPUFAs). Compared to CON, MO and DFO resulted in decreased clustering of membrane microdomains, whereas EFO increased clustering. All fish oil treatments had 1.12-1.60 times higher CD40 expression following stimulation; however, we observed 0.86 times lower major histocompatibility complex class II expression and 0.7 times lower interleukin (IL)-6 production from EFO, but 3.25 times higher interferon-γ from MO and 1.5 times higher IL-6 from DFO. By 90min of incubation, MO had 1.11 times higher antigen uptake compared to CON, whereas EFO was 0.86 times lower. All fish oil treatments resulted in decreasingly mature splenic and bone marrow B-cell subsets. We conclude that diets high in n-3 LCPUFAs may elicit similar B-cell phenotypes but different organizational and functional outcomes. More specifically, these data suggest that the EPA and DHA content of a diet influences immunological outcomes, highlighting the importance of understanding how specific n-3 LCPUFAs modulate B-cell development and function.
Collapse
Affiliation(s)
- Eric A Gurzell
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824
| | - Heather Teague
- Department of Biochemistry & Molecular Biology, Department of Microbiology & Immunology, East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC 27834
| | - David Duriancik
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824
| | - Jonathan Clinthorne
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824
| | - Mitchel Harris
- Department of Biochemistry & Molecular Biology, Department of Microbiology & Immunology, East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC 27834
| | - Saame Raza Shaikh
- Department of Biochemistry & Molecular Biology, Department of Microbiology & Immunology, East Carolina Diabetes and Obesity Institute, East Carolina University, Greenville, NC 27834
| | - Jenifer I Fenton
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824; College of Osteopathic Medicine, Michigan State University, East Lansing, MI 48824.
| |
Collapse
|
45
|
Allen MJ, Fan YY, Monk JM, Hou TY, Barhoumi R, McMurray DN, Chapkin RS. n-3 PUFAs reduce T-helper 17 cell differentiation by decreasing responsiveness to interleukin-6 in isolated mouse splenic CD4⁺ T cells. J Nutr 2014; 144:1306-13. [PMID: 24944284 PMCID: PMC4093987 DOI: 10.3945/jn.114.194407] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Cluster of differentiation 4(+) (CD4(+)) effector T-cell subsets [e.g., T-helper (Th) 1 and Th17] are implicated in autoimmune and inflammatory disorders such as multiple sclerosis, psoriasis, and rheumatoid arthritis. Interleukin (IL)-6 is a pleiotropic cytokine that induces Th17 polarization via signaling through the membrane-bound transducer glycoprotein 130 (GP130). Previously, we demonstrated that n-3 (ω-3) polyunsaturated fatty acids (PUFAs) reduce CD4(+) T-cell activation and differentiation into pathogenic Th17 cells by 25-30%. Here we report that n-3 PUFAs alter the response of CD4(+) T cells to IL-6 in a lipid raft membrane-dependent manner. Naive splenic CD4(+) T cells from fat-1 transgenic mice exhibited 30% lower surface expression of the IL-6 receptor. This membrane-bound receptor is known to be shed during cellular activation, but the release of soluble IL-6 receptor after treatment with anti-CD3 and anti-CD28 was not changed in the CD4(+) T cells from fat-1 mice, suggesting that the decrease in surface expression was not due to ectodomain release. We observed a significant 20% decrease in the association of GP130 with lipid rafts in activated fat-1 CD4(+) T cells and a 35% reduction in GP130 homodimerization, an obligate requirement for downstream signaling. The phosphorylation of signal transducer and activator of transcription 3 (STAT3), a downstream target of IL-6-dependent signaling, was also decreased by 30% in response to exogenous IL-6 in fat-1 CD4(+) T cells. Our results suggest that n-3 PUFAs suppress Th17 cell differentiation in part by reducing membrane raft-dependent responsiveness to IL-6, an essential polarizing cytokine.
Collapse
Affiliation(s)
- M. Jeannie Allen
- Program in Integrative Nutrition and Complex Diseases,,Nutrition and Food Science
| | - Yang-Yi Fan
- Program in Integrative Nutrition and Complex Diseases,,Nutrition and Food Science
| | - Jennifer M. Monk
- Program in Integrative Nutrition and Complex Diseases,,Nutrition and Food Science
| | - Tim Y. Hou
- Program in Integrative Nutrition and Complex Diseases,,Biochemistry and Biophysics
| | - Rola Barhoumi
- College of Veterinary Medicine and Biomedical Sciences Image Analysis Laboratory, and
| | - David N. McMurray
- Program in Integrative Nutrition and Complex Diseases,,Microbial Pathogenesis and Immunology, School of Medicine, Texas A&M University Health Science Center, College Station, TX
| | - Robert S. Chapkin
- Program in Integrative Nutrition and Complex Diseases,,Nutrition and Food Science,,Center for Translational Environmental Health Research, Texas A&M University, College Station, TX; and,Microbial Pathogenesis and Immunology, School of Medicine, Texas A&M University Health Science Center, College Station, TX,To whom correspondence should be addressed. E-mail:
| |
Collapse
|
46
|
Fenton JI, Hord NG, Ghosh S, Gurzell EA. Immunomodulation by dietary long chain omega-3 fatty acids and the potential for adverse health outcomes. Prostaglandins Leukot Essent Fatty Acids 2013; 89:379-90. [PMID: 24183073 PMCID: PMC3912985 DOI: 10.1016/j.plefa.2013.09.011] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 09/18/2013] [Accepted: 09/21/2013] [Indexed: 01/07/2023]
Abstract
Recommendations to consume fish for prevention of cardiovascular disease (CVD), along with the U.S. Food and Drug Administration-approved generally recognized as safe (GRAS) status for long chain omega-3 fatty acids, may have had the unanticipated consequence of encouraging long-chain omega-3 (ω-3) fatty acid [(eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)] supplementation and fortification practices. While there is evidence supporting a protective role for EPA/DHA supplementation in reducing sudden cardiac events, the safety and efficacy of supplementation with LCω-3PUFA in the context of other disease outcomes is unclear. Recent studies of bacterial, viral, and fungal infections in animal models of infectious disease demonstrate that LCω-3PUFA intake dampens immunity and alters pathogen clearance and can result in reduced survival. The same physiological properties of EPA/DHA that are responsible for the amelioration of inflammation associated with chronic cardiovascular pathology or autoimmune states, may impair pathogen clearance during acute infections by decreasing host resistance or interfere with tumor surveillance resulting in adverse health outcomes. Recent observations that high serum LCω-3PUFA levels are associated with higher risk of prostate cancer and atrial fibrillation raise concern for adverse outcomes. Given the widespread use of supplements and fortification of common food items with LCω-3PUFA, this review focuses on the immunomodulatory effects of the dietary LCω-3PUFAs, EPA and DHA, the mechanistic basis for potential negative health outcomes, and calls for biomarker development and validation as rational first steps towards setting recommended dietary intake levels.
Collapse
Affiliation(s)
- Jenifer I Fenton
- Department of Food Science and Human, College of Agriculture and Natural Resources, Michigan State University, East Lansing, MI, United States; College of Osteopathic Medicine, Michigan State University, East Lansing, MI 48824, United States.
| | | | | | | |
Collapse
|