1
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Xu B, Zhang L, Wu D, Qi Z, Cao J, Li W, Fan L, Shi Y, Wu Y, Li G. CuO nanoparticles elicit intestinal immunotoxicity in zebrafish based on intestinal microbiota dysbiosis. Food Funct 2024; 15:7619-7630. [PMID: 38940701 DOI: 10.1039/d4fo01032a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Copper II oxide nanoparticles (CuO NPs), a kind of widely used nanomaterial, have been detected in food and the environment, which has aroused widespread public concern. Recently, increasing data have suggested that intestinal microecology is closely related to immune homeostasis. However, the intestinal immunotoxicity induced by CuO NPs through intestinal microbiota is still unknown. Therefore, in this study, zebrafish were exposed to CuO NPs to explore intestinal immunotoxicity by evaluating physiological indicators, intestinal tissue injury, antioxidant enzyme activities, gene expression of immune factors, and changes in intestinal microbiota and its metabolites (short-chain fatty acids (SCFAs) and lipopolysaccharides (LPS)). The results revealed that the intestinal immunotoxicity of CuO NPs was mediated by the impact on intestinal microbiota and its metabolite levels. Specifically, changes were observed in the abundance of microbes that participated in the metabolism of SCFAs and LPS. The reduction in acetic acid, propionic acid and valeric acid upregulated GPR84 expression, and the decline in LPS levels further resulted in the suppression of the key immune regulatory pathways TLR4/MyD88/NF-κB, ultimately leading to intestinal immunotoxicity. This study would provide a scientific basis for the risk assessment of CuO NPs and a new perspective for research on the immunotoxicity of nanoparticles.
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Affiliation(s)
- Bufan Xu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Luyao Zhang
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Di Wu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, UK
| | - Zihe Qi
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Juanjuan Cao
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Wenrui Li
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Lihua Fan
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Yiheng Shi
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
| | - Yongning Wu
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
- NHC Key Laboratory of Food Safety Risk Assessment, Food Safety Research Unit (2019RU014) of Chinese Academy of Medical Science, China National Center for Food Safety Risk Assessment, Beijing 100021, China
| | - Guoliang Li
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China.
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2
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Martin-Gutierrez L, Waddington KE, Maggio A, Coelewij L, Oppong AE, Yang N, Adriani M, Nytrova P, Farrell R, Pineda-Torra I, Jury EC. Dysregulated lipid metabolism networks modulate T-cell function in people with relapsing-remitting multiple sclerosis. Clin Exp Immunol 2024; 217:204-218. [PMID: 38625017 PMCID: PMC11239565 DOI: 10.1093/cei/uxae032] [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: 10/05/2023] [Revised: 03/06/2024] [Accepted: 04/15/2024] [Indexed: 04/17/2024] Open
Abstract
Altered cholesterol, oxysterol, sphingolipid, and fatty acid concentrations are reported in blood, cerebrospinal fluid, and brain tissue of people with relapsing-remitting multiple sclerosis (RRMS) and are linked to disease progression and treatment responses. CD4 + T cells are pathogenic in RRMS, and defective T-cell function could be mediated in part by liver X receptors (LXRs)-nuclear receptors that regulate lipid homeostasis and immunity. RNA-sequencing and pathway analysis identified that genes within the 'lipid metabolism' and 'signalling of nuclear receptors' pathways were dysregulated in CD4 + T cells isolated from RRMS patients compared with healthy donors. While LXRB and genes associated with cholesterol metabolism were upregulated, other T-cell LXR-target genes, including genes involved in cellular lipid uptake (inducible degrader of the LDL receptor, IDOL), and the rate-limiting enzyme for glycosphingolipid biosynthesis (UDP-glucosylceramide synthase, UGCG) were downregulated in T cells from patients with RRMS compared to healthy donors. Correspondingly, plasma membrane glycosphingolipids were reduced, and cholesterol levels increased in RRMS CD4 + T cells, an effect partially recapitulated in healthy T cells by in vitro culture with T-cell receptor stimulation in the presence of serum from RRMS patients. Notably, stimulation with LXR-agonist GW3965 normalized membrane cholesterol levels, and reduced proliferation and IL17 cytokine production in RRMS CD4 + T-cells. Thus, LXR-mediated lipid metabolism pathways were dysregulated in T cells from patients with RRMS and could contribute to RRMS pathogenesis. Therapies that modify lipid metabolism could help restore immune cell function.
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Affiliation(s)
| | - Kirsty E Waddington
- Centre for Rheumatology, Division of Medicine, University College London, UK
| | - Annalisa Maggio
- Centre for Rheumatology, Division of Medicine, University College London, UK
| | - Leda Coelewij
- Centre for Rheumatology, Division of Medicine, University College London, UK
| | - Alexandra E Oppong
- Centre for Rheumatology, Division of Medicine, University College London, UK
| | - Nina Yang
- Centre for Rheumatology, Division of Medicine, University College London, UK
| | - Marsilio Adriani
- Centre for Rheumatology, Division of Medicine, University College London, UK
| | - Petra Nytrova
- Department of Neurology and Centre of Clinical, Neuroscience, First Faculty of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, Czech Republic
| | - Rachel Farrell
- Department of Neuroinflammation, University College London and Institute of Neurology and National Hospital of Neurology and Neurosurgery, UK
| | - Inés Pineda-Torra
- Centre for Experimental & Translational Medicine, Division of Medicine, University College London, UK
| | - Elizabeth C Jury
- Centre for Rheumatology, Division of Medicine, University College London, UK
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3
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Sanaie S, Koohi N, Mosaddeghi-Heris R, Rezai S, Movagharnia E, Karimi H, Moghaddamziabari S, Hamzehzadeh S, Gholipour-Khalili E, Talebi M, Naseri A. Serum lipids and cognitive outcomes in multiple sclerosis; a systematic review and meta-analysis. Mult Scler Relat Disord 2024; 85:105530. [PMID: 38522226 DOI: 10.1016/j.msard.2024.105530] [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: 08/30/2023] [Revised: 11/19/2023] [Accepted: 02/28/2024] [Indexed: 03/26/2024]
Abstract
BACKGROUND Cognitive impairment is highly prevalent in multiple sclerosis (MS) with poorly understood underlying mechanisms. Lipids are considered to be associated with MS progression through the inflammatory and oxidative stress pathways, brain atrophy, cellular signaling, and tissue physiology. In addition, serum lipids are proposed as a modifiable factor affecting the neuropsychiatric condition; therefore, this study aims to assess the association between serum lipid levels and cognitive outcomes in MS. METHODS This study was carried out following the PRISMA 2020 statement. A systematic search was conducted in PubMed, Scopus, Web of Science, and Embase in March 2023, and the Joanna Briggs Institute (JBI)'s critical appraisal tools were utilized for risk of bias (RoB) assessments in the included studies. The quantitative synthesis was performed with the comprehensive meta-analysis (CMA3) software. RESULTS Out of 508 screened records, 7 studies were eventually found to meet our inclusion criteria. In two studies, the course of MS in the sample of the study was only Relapsing-Remitting MS (RRMS), whereas the other five studies' sample was a combination of different phenotypes. Studies utilized different scales such as Minimal Assessment of Cognitive Function in MS (MACFIMS), Brief International Cognitive Assessment for MS (BICAMS), Montreal Cognitive Assessment (MoCA), Brief Repeatable Battery of Neuropsychological Tests (BRB-N) for cognitive evaluations. Dealing with possible confounders such as age, disease duration and level of disability was the most common possible source of bias in the included studies. One study revealed an inverse relationship between serum levels of apolipoproteins (including ApoA-I, ApoB, and ApoB/ApoA-I) and Symbol Digit Modalities Test (SDMT) scores. Also, a correlation between 24S-hydroxycholesterol (24OHC) serum concentrations and SDMT score was reported in one study. The association between serum total cholesterol (TC) and low-density lipoprotein cholesterol (LDL) and different aspects of cognitive function was reported in the studies; however, serum levels of high-density lipoprotein cholesterol (HDL) were not found to be associated. The quantitative synthesis revealed a significant correlation between TC and the MoCA scores (r =-0.238; 95 %CI: -0.366 to -0.100; p-value = 0.001); however, the correlation between TG levels and MoCA were not statistically significant (r:-0.070; 95 %CI: -0.209 to 0.072; p-value: 0.334). In addition, the mata-analyses were not associated with significant findings regarding the correlation between lipid profiles (including HDL, LDL, TG, and TC) and other cognitive assessment scales including SDMT, Brief Visuospatial Memory Test (BVMT), and California Verbal Learning Test (CVLT) (p-values>0.05). DISCUSSION Available evidence suggested a link between TC and LDL with cognitive outcomes of MS patients which was not evident in our quantitative synthesis. The limited number of studies, high RoB, different cognitive assessment scales and reporting methods, and the cross-sectional design of the included studies, were the main limitations that alleviate the clinical significance of the findings of this study and suggested further investigations on this topic. FUNDING AND REGISTRATION The research protocol was approved and supported by the Student Research Committee, Tabriz University of Medical Sciences (grant number: 71,909). This study is registered in the international prospective register of systematic reviews (PROSPERO ID: CRD42023441625).
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Affiliation(s)
- Sarvin Sanaie
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz 5166614756, Iran
| | - Narges Koohi
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Reza Mosaddeghi-Heris
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz 5166614756, Iran
| | - Shirin Rezai
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elahe Movagharnia
- Research Center for Evidence-Based Medicine, Iranian EBM Centre: A Joanna Briggs Institute (JBI) Center of Excellence, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hanie Karimi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Sina Hamzehzadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Mahnaz Talebi
- Neurosciences Research Center (NSRC), Tabriz University of Medical Sciences, Tabriz 5166614756, Iran.
| | - Amirreza Naseri
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Research Center for Evidence-Based Medicine, Iranian EBM Centre: A Joanna Briggs Institute (JBI) Center of Excellence, Tabriz University of Medical Sciences, Tabriz, Iran; Tabriz USERN Office, Universal Scientific Education and Research Network (USERN), Tabriz, Iran.
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4
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Dicks LMT. Gut Bacteria Provide Genetic and Molecular Reporter Systems to Identify Specific Diseases. Int J Mol Sci 2024; 25:4431. [PMID: 38674014 PMCID: PMC11050607 DOI: 10.3390/ijms25084431] [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: 03/22/2024] [Revised: 04/15/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
With genetic information gained from next-generation sequencing (NGS) and genome-wide association studies (GWAS), it is now possible to select for genes that encode reporter molecules that may be used to detect abnormalities such as alcohol-related liver disease (ARLD), cancer, cognitive impairment, multiple sclerosis (MS), diabesity, and ischemic stroke (IS). This, however, requires a thorough understanding of the gut-brain axis (GBA), the effect diets have on the selection of gut microbiota, conditions that influence the expression of microbial genes, and human physiology. Bacterial metabolites such as short-chain fatty acids (SCFAs) play a major role in gut homeostasis, maintain intestinal epithelial cells (IECs), and regulate the immune system, neurological, and endocrine functions. Changes in butyrate levels may serve as an early warning of colon cancer. Other cancer-reporting molecules are colibactin, a genotoxin produced by polyketide synthetase-positive Escherichia coli strains, and spermine oxidase (SMO). Increased butyrate levels are also associated with inflammation and impaired cognition. Dysbiosis may lead to increased production of oxidized low-density lipoproteins (OX-LDLs), known to restrict blood vessels and cause hypertension. Sudden changes in SCFA levels may also serve as a warning of IS. Early signs of ARLD may be detected by an increase in regenerating islet-derived 3 gamma (REG3G), which is associated with changes in the secretion of mucin-2 (Muc2). Pro-inflammatory molecules such as cytokines, interferons, and TNF may serve as early reporters of MS. Other examples of microbial enzymes and metabolites that may be used as reporters in the early detection of life-threatening diseases are reviewed.
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Affiliation(s)
- Leon M T Dicks
- Department of Microbiology, Stellenbosch University, Stellenbosch 7600, South Africa
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5
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Oppong AE, Coelewij L, Robertson G, Martin-Gutierrez L, Waddington KE, Dönnes P, Nytrova P, Farrell R, Pineda-Torra I, Jury EC. Blood metabolomic and transcriptomic signatures stratify patient subgroups in multiple sclerosis according to disease severity. iScience 2024; 27:109225. [PMID: 38433900 PMCID: PMC10907838 DOI: 10.1016/j.isci.2024.109225] [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: 09/19/2023] [Revised: 12/20/2023] [Accepted: 02/08/2024] [Indexed: 03/05/2024] Open
Abstract
There are no blood-based biomarkers distinguishing patients with relapsing-remitting (RRMS) from secondary progressive multiple sclerosis (SPMS) although evidence supports metabolomic changes according to MS disease severity. Here machine learning analysis of serum metabolomic data stratified patients with RRMS from SPMS with high accuracy and a putative score was developed that stratified MS patient subsets. The top differentially expressed metabolites between SPMS versus patients with RRMS included lipids and fatty acids, metabolites enriched in pathways related to cellular respiration, notably, elevated lactate and glutamine (gluconeogenesis-related) and acetoacetate and bOHbutyrate (ketone bodies), and reduced alanine and pyruvate (glycolysis-related). Serum metabolomic changes were recapitulated in the whole blood transcriptome, whereby differentially expressed genes were also enriched in cellular respiration pathways in patients with SPMS. The final gene-metabolite interaction network demonstrated a potential metabolic shift from glycolysis toward increased gluconeogenesis and ketogenesis in SPMS, indicating metabolic stress which may trigger stress response pathways and subsequent neurodegeneration.
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Affiliation(s)
- Alexandra E. Oppong
- Division of Medicine, Department of Inflammation, University College London, London WC1E 6JF, UK
| | - Leda Coelewij
- Division of Medicine, Department of Inflammation, University College London, London WC1E 6JF, UK
| | - Georgia Robertson
- Division of Medicine, Department of Inflammation, University College London, London WC1E 6JF, UK
| | - Lucia Martin-Gutierrez
- Division of Medicine, Department of Inflammation, University College London, London WC1E 6JF, UK
| | - Kirsty E. Waddington
- Division of Medicine, Department of Inflammation, University College London, London WC1E 6JF, UK
| | - Pierre Dönnes
- Division of Medicine, Department of Inflammation, University College London, London WC1E 6JF, UK
- Scicross AB, Skövde, Sweden
| | - Petra Nytrova
- Department of Neurology and Centre of Clinical, Neuroscience, First Faculty of Medicine, General University Hospital and First Faculty of Medicine, Charles University in Prague, 500 03 Prague, Czech Republic
| | - Rachel Farrell
- Department of Neuroinflammation, University College London and Institute of Neurology and National Hospital of Neurology and Neurosurgery, London WC1N 3BG, UK
| | - Inés Pineda-Torra
- Division of Medicine, Department of Inflammation, University College London, London WC1E 6JF, UK
| | - Elizabeth C. Jury
- Division of Medicine, Department of Inflammation, University College London, London WC1E 6JF, UK
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6
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Wang Q, Wu Q, Yang J, Saad A, Mills E, Dowling C, Lundy S, Mao-Draayer Y. Dysregulation of humoral immunity, iron homeostasis, and lipid metabolism is associated with multiple sclerosis progression. Mult Scler Relat Disord 2023; 79:105020. [PMID: 37806231 DOI: 10.1016/j.msard.2023.105020] [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: 04/18/2023] [Revised: 09/02/2023] [Accepted: 09/23/2023] [Indexed: 10/10/2023]
Abstract
BACKGROUND Though most patients with multiple sclerosis (MS) presented earlier on as a relapsing-remitting (RR) disease, disability progression eventually occurred. Uncovering the mechanisms underlying progression may facilitate the unmet need for developing therapies to prevent progression. Benign MS (BMS), a rare form of MS, is the opposite from secondary progressive MS (SPMS) in that it lacks disease progression defined as Expanded Disability Status Scale (EDSS) ≤3 after at least 15 years of disease onset. BMS is characterized by rare and mild relapses with complete remission of clinical symptoms (lower activity of the disease) and lack of progression. Our study aims to identify transcriptomic and immunological differences between BMS and SPMS to unravel the pathogenesis of disease progression. METHODS We took multi-modal approaches with microarrays, flow cytometry, and lipidomics by three-way comparisons of patients with BMS vs. RRMS (low disease activity vs. moderate or severe activity), RRMS vs. SPMS (continued activity vs. complete transformation into progressive phase) as well as BMS vs. SPMS, matched for age and disease-duration (low disease activity and no progression vs. progression with or without activity). RESULTS We found that patients with RRMS and SPMS have a significantly higher percentage of B cells than those with BMS. BMS shows a different transcriptomic profile than SPMS. Many of the differentially expressed genes (DEGs) are involved in B cell-mediated immune responses. Additionally, long-chain fatty acids (LCFA), which can act as inflammatory mediators, are also altered in SPMS. Overall, our data suggest a role for the dysregulation of B cell differentiation and function, humoral immunity, and iron and lipid homeostasis in the pathogenesis of MS disease progression. CONCLUSION BMS has a unique transcriptomic and immunological profile compared to RRMS and SPMS. These differences will allow for personalized precision medicine and may ultimately lead to the discovery of new therapeutic targets for disease progression.
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Affiliation(s)
- Qin Wang
- Department of Neurology, University of Michigan Medical School, USA; Autoimmunity Center of Excellence, University of Michigan Medical School, USA
| | - Qi Wu
- Department of Neurology, University of Michigan Medical School, USA; Autoimmunity Center of Excellence, University of Michigan Medical School, USA
| | - Jennifer Yang
- Department of Neurology, University of Michigan Medical School, USA; Autoimmunity Center of Excellence, University of Michigan Medical School, USA
| | - Aiya Saad
- Department of Neurology, University of Michigan Medical School, USA; Autoimmunity Center of Excellence, University of Michigan Medical School, USA
| | - Elizabeth Mills
- Department of Neurology, University of Michigan Medical School, USA; Autoimmunity Center of Excellence, University of Michigan Medical School, USA
| | - Catherine Dowling
- Department of Neurology, University of Michigan Medical School, USA; Autoimmunity Center of Excellence, University of Michigan Medical School, USA
| | - Steven Lundy
- Autoimmunity Center of Excellence, University of Michigan Medical School, USA
| | - Yang Mao-Draayer
- Department of Neurology, University of Michigan Medical School, USA; Autoimmunity Center of Excellence, University of Michigan Medical School, USA; Graduate Program in Immunology, Program in Biomedical Sciences, University of Michigan Medical School, USA; Michigan Institute for Neurological Disorders, USA.
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7
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Garcia Corrales AV, Verberk SGS, Haidar M, Grajchen E, Dehairs J, Vanherle S, Loix M, Weytjens T, Gervois P, Matsuzaka T, Lambrichts I, Swinnen JV, Bogie JFJ, Hendriks JJA. Fatty acid elongation by ELOVL6 hampers remyelination by promoting inflammatory foam cell formation during demyelination. Proc Natl Acad Sci U S A 2023; 120:e2301030120. [PMID: 37669365 PMCID: PMC10500284 DOI: 10.1073/pnas.2301030120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 07/24/2023] [Indexed: 09/07/2023] Open
Abstract
A hallmark of multiple sclerosis (MS) is the formation of multiple focal demyelinating lesions within the central nervous system (CNS). These lesions mainly consist of phagocytes that play a key role in lesion progression and remyelination, and therefore represent a promising therapeutic target in MS. We recently showed that unsaturated fatty acids produced by stearoyl-CoA desaturase-1 induce inflammatory foam cell formation during demyelination. These fatty acids are elongated by the "elongation of very long chain fatty acids" proteins (ELOVLs), generating a series of functionally distinct lipids. Here, we show that the expression and activity of ELOVLs are altered in myelin-induced foam cells. Especially ELOVL6, an enzyme responsible for converting saturated and monounsaturated C16 fatty acids into C18 species, was found to be up-regulated in myelin phagocytosing phagocytes in vitro and in MS lesions. Depletion of Elovl6 induced a repair-promoting phagocyte phenotype through activation of the S1P/PPARγ pathway. Elovl6-deficient foamy macrophages showed enhanced ABCA1-mediated lipid efflux, increased production of neurotrophic factors, and reduced expression of inflammatory mediators. Moreover, our data show that ELOVL6 hampers CNS repair, as Elovl6 deficiency prevented demyelination and boosted remyelination in organotypic brain slice cultures and the mouse cuprizone model. These findings indicate that targeting ELOVL6 activity may be an effective strategy to stimulate CNS repair in MS and other neurodegenerative diseases.
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Affiliation(s)
- Aida V. Garcia Corrales
- Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek3590, Belgium
| | - Sanne G. S. Verberk
- Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek3590, Belgium
| | - Mansour Haidar
- Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek3590, Belgium
| | - Elien Grajchen
- Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek3590, Belgium
| | - Jonas Dehairs
- Department of Oncology, Laboratory of Lipid Metabolism and Cancer, Leuven Cancer Institute, University of Leuven, Leuven3000, Belgium
| | - Sam Vanherle
- Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek3590, Belgium
| | - Melanie Loix
- Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek3590, Belgium
| | - Tine Weytjens
- Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek3590, Belgium
| | - Pascal Gervois
- Department of Cardiology and Organ Systems, Biomedical Research Institute, Hasselt University, Diepenbeek3590, Belgium
| | - Takashi Matsuzaka
- Department of Internal Medicine (Endocrinology and Metabolism), Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki305-8575, Japan
| | - Ivo Lambrichts
- Department of Cardiology and Organ Systems, Biomedical Research Institute, Hasselt University, Diepenbeek3590, Belgium
| | - Johannes V. Swinnen
- Department of Oncology, Laboratory of Lipid Metabolism and Cancer, Leuven Cancer Institute, University of Leuven, Leuven3000, Belgium
| | - Jeroen F. J. Bogie
- Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek3590, Belgium
| | - Jerome J. A. Hendriks
- Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek3590, Belgium
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8
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Kayama H, Takeda K. Emerging roles of host and microbial bioactive lipids in inflammatory bowel diseases. Eur J Immunol 2023; 53:e2249866. [PMID: 37191284 DOI: 10.1002/eji.202249866] [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: 12/28/2022] [Revised: 04/11/2023] [Accepted: 05/15/2023] [Indexed: 05/17/2023]
Abstract
The intestinal tract harbors diverse microorganisms, host- and microbiota-derived metabolites, and potentially harmful dietary antigens. The epithelial barrier separates the mucosa, where diverse immune cells exist, from the lumen to avoid excessive immune reactions against microbes and dietary antigens. Inflammatory bowel disease (IBD), such as ulcerative colitis and Crohn's disease, is characterized by a chronic and relapsing disorder of the gastrointestinal tract. Although the precise etiology of IBD is still largely unknown, accumulating evidence suggests that IBD is multifactorial, involving host genetics and microbiota. Alterations in the metabolomic profiles and microbial community are features of IBD. Advances in mass spectrometry-based lipidomic technologies enable the identification of changes in the composition of intestinal lipid species in IBD. Because lipids have a wide range of functions, including signal transduction and cell membrane formation, the dysregulation of lipid metabolism drastically affects the physiology of the host and microorganisms. Therefore, a better understanding of the intimate interactions of intestinal lipids with host cells that are implicated in the pathogenesis of intestinal inflammation might aid in the identification of novel biomarkers and therapeutic targets for IBD. This review summarizes the current knowledge on the mechanisms by which host and microbial lipids control and maintain intestinal health and diseases.
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Affiliation(s)
- Hisako Kayama
- Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- WPI, Osaka University, Suita, Osaka, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, Suita, Osaka, Japan
| | - Kiyoshi Takeda
- Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
- WPI, Osaka University, Suita, Osaka, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Japan
- Center for Infection Disease Education and Research, Osaka University, Suita, Japan
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9
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Rotstein D, Schneider R. A Birth Year Cohort and What It Can Reveal About Lipid Mediators as Putative Biomarkers of Progression in Multiple Sclerosis. Neurology 2023; 101:197-198. [PMID: 37290973 DOI: 10.1212/wnl.0000000000207605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 05/16/2023] [Indexed: 06/10/2023] Open
Affiliation(s)
- Dalia Rotstein
- From the Department of Medicine (D.R., R.S.), Division of Neurology, University of Toronto; St. Michael's Hospital (D.R., R.S.), and Keenan Research Centre for Biomedical Science (R.S.), Unity Health Toronto, Ontario, Canada.
| | - Raphael Schneider
- From the Department of Medicine (D.R., R.S.), Division of Neurology, University of Toronto; St. Michael's Hospital (D.R., R.S.), and Keenan Research Centre for Biomedical Science (R.S.), Unity Health Toronto, Ontario, Canada
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10
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Hedström AK. Risk factors for multiple sclerosis in the context of Epstein-Barr virus infection. Front Immunol 2023; 14:1212676. [PMID: 37554326 PMCID: PMC10406387 DOI: 10.3389/fimmu.2023.1212676] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 06/26/2023] [Indexed: 08/10/2023] Open
Abstract
Compelling evidence indicates that Epstein Barr virus (EBV) infection is a prerequisite for multiple sclerosis (MS). The disease may arise from a complex interplay between latent EBV infection, genetic predisposition, and various environmental and lifestyle factors that negatively affect immune control of the infection. Evidence of gene-environment interactions and epigenetic modifications triggered by environmental factors in genetically susceptible individuals supports this view. This review gives a short introduction to EBV and host immunity and discusses evidence indicating EBV as a prerequisite for MS. The role of genetic and environmental risk factors, and their interactions, in MS pathogenesis is reviewed and put in the context of EBV infection. Finally, possible preventive measures are discussed based on the findings presented.
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Affiliation(s)
- Anna Karin Hedström
- Department of Clinical Neuroscience, Karolinska Institute, Stockholm, Sweden
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Buga AM, Padureanu V, Riza AL, Oancea CN, Albu CV, Nica AD. The Gut-Brain Axis as a Therapeutic Target in Multiple Sclerosis. Cells 2023; 12:1872. [PMID: 37508537 PMCID: PMC10378521 DOI: 10.3390/cells12141872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/14/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023] Open
Abstract
The CNS is very susceptible to oxidative stress; the gut microbiota plays an important role as a trigger of oxidative damage that promotes mitochondrial dysfunction, neuroinflammation, and neurodegeneration. In the current review, we discuss recent findings on oxidative-stress-related inflammation mediated by the gut-brain axis in multiple sclerosis (MS). Growing evidence suggests targeting gut microbiota can be a promising strategy for MS management. Intricate interaction between multiple factors leads to increased intra- and inter-individual heterogeneity, frequently painting a different picture in vivo from that obtained under controlled conditions. Following an evidence-based approach, all proposed interventions should be validated in clinical trials with cohorts large enough to reach significance. Our review summarizes existing clinical trials focused on identifying suitable interventions, the suitable combinations, and appropriate timings to target microbiota-related oxidative stress. Most studies assessed relapsing-remitting MS (RRMS); only a few studies with very limited cohorts were carried out in other MS stages (e.g., secondary progressive MS-SPMS). Future trials must consider an extended time frame, perhaps starting with the perinatal period and lasting until the young adult period, aiming to capture as many complex intersystem interactions as possible.
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Affiliation(s)
- Ana Maria Buga
- Department of Biochemistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Vlad Padureanu
- Department of Internal Medicine, University of Medicine and Pharmacy of Craiova, 200638 Craiova, Romania
| | - Anca-Lelia Riza
- Laboratory of Human Genomics, University of Medicine and Pharmacy of Craiova, 200638 Craiova, Romania
- Regional Center for Medical Genetics Dolj, Emergency County Hospital Craiova, 200638 Craiova, Romania
| | - Carmen Nicoleta Oancea
- Department of Biochemistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Carmen Valeria Albu
- Department of Neurology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Alexandru Dan Nica
- Department of Biochemistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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12
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Dixit A, Savage HS, Greer JM. An appraisal of emerging therapeutic targets for multiple sclerosis derived from current preclinical models. Expert Opin Ther Targets 2023; 27:553-574. [PMID: 37438986 DOI: 10.1080/14728222.2023.2236301] [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: 02/22/2023] [Accepted: 07/09/2023] [Indexed: 07/14/2023]
Abstract
INTRODUCTION Multiple sclerosis (MS) is a chronic inflammatory, demyelinating, and neurodegenerative condition affecting the central nervous system (CNS). Although therapeutic approaches have become available over the last 20 years that markedly slow the progression of disease, there is no cure for MS. Furthermore, the capacity to repair existing CNS damage caused by MS remains very limited. AREAS COVERED Several animal models are widely used in MS research to identify potential druggable targets for new treatment of MS. In this review, we look at targets identified since 2019 in studies using these models, and their potential for effecting a cure for MS. EXPERT OPINION Refinement of therapeutic strategies targeting key molecules involved in the activation of immune cells, cytokine, and chemokine signaling, and the polarization of the immune response have dominated recent publications. While some progress has been made in identifying effective targets to combat chronic demyelination and neurodegeneration, much more work is required. Progress is largely limited by the gaps in knowledge of how the immune system and the nervous system interact in MS and its animal models, and whether the numerous targets present in both systems respond in the same way in each system to the same therapeutic manipulation.
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Affiliation(s)
- Aakanksha Dixit
- The University of Queensland, UQ Centre for Clinical Research, Royal Brisbane & Women's Hospita, Brisbane, QLD, Australia
| | - Hannah S Savage
- The University of Queensland, UQ Centre for Clinical Research, Royal Brisbane & Women's Hospita, Brisbane, QLD, Australia
| | - Judith M Greer
- The University of Queensland, UQ Centre for Clinical Research, Royal Brisbane & Women's Hospita, Brisbane, QLD, Australia
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13
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Mandato C, Colucci A, Lanzillo R, Staiano A, Scarpato E, Schiavo L, Operto FF, Serra MR, Di Monaco C, Napoli JS, Massa G, Vajro P. Multiple Sclerosis-Related Dietary and Nutritional Issues: An Updated Scoping Review with a Focus on Pediatrics. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1022. [PMID: 37371254 DOI: 10.3390/children10061022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023]
Abstract
PURPOSE Lifestyle/dietetic habits play an important role in the development and progression of multiple sclerosis (MS) disease. Here, we examine the basic pathomechanisms underlying intestinal and brain barrier modifications in MS and consider diets and dietary supplementations proposed over time to complement pharmacological therapies for improving disease outcome both in adults and in children. METHODS Scoping literature search about evidence-based findings in MS-related gut-brain axis (GBA) pathophysiology and nutritional issues at all ages. FINDINGS Data show that (1) no universal best diet exists, (2) healthy/balanced diets are, however, necessary to safeguard the adequate intake of all essential nutrients, (3) diets with high intakes of fruits, vegetables, whole grains, and lean proteins that limit processed foods, sugar, and saturated fat appear beneficial for their antioxidant and anti-inflammatory properties and their ability to shape a gut microbiota that respects the gut and brain barriers, (4) obesity may trigger MS onset and/or its less favorable course, especially in pediatric-onset MS. Vitamin D and polyunsaturated fatty acids are the most studied supplements for reducing MS-associated inflammation. CONCLUSIONS Pending results from other and/or newer approaches targeting the GBA (e.g., pre- and probiotics, engineered probiotics, fecal-microbiota transplantation), accurate counseling in choosing adequate diet and maintaining physical activity remains recommended for MS prevention and management both in adults and children.
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Affiliation(s)
- Claudia Mandato
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", Pediatrics Section, University of Salerno, 84081 Baronissi, Salerno, Italy
| | - Angelo Colucci
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", Pediatrics Section, University of Salerno, 84081 Baronissi, Salerno, Italy
| | - Roberta Lanzillo
- Multiple Sclerosis Clinical Care and Research Centre, Department of Neuroscience, Reproductive Science and Odontostomatology, University of Naples Federico II, 80138 Naples, Naples, Italy
| | - Annamaria Staiano
- Department of Translational Medical Science, Section of Pediatrics, University of Naples Federico II, 80138 Naples, Naples, Italy
| | - Elena Scarpato
- Department of Translational Medical Science, Section of Pediatrics, University of Naples Federico II, 80138 Naples, Naples, Italy
| | - Luigi Schiavo
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", Nutrition Section, University of Salerno, 84081 Baronissi, Salerno, Italy
| | - Francesca Felicia Operto
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", Pediatric Psychiatry Section, University of Salerno, 84081 Baronissi, Salerno, Italy
| | - Maria Rosaria Serra
- Department of Translational Medical Science, Section of Pediatrics, University of Naples Federico II, 80138 Naples, Naples, Italy
| | - Cristina Di Monaco
- Multiple Sclerosis Clinical Care and Research Centre, Department of Neuroscience, Reproductive Science and Odontostomatology, University of Naples Federico II, 80138 Naples, Naples, Italy
| | - Julia Sara Napoli
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", Pediatrics Section, University of Salerno, 84081 Baronissi, Salerno, Italy
| | - Grazia Massa
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", Pediatrics Section, University of Salerno, 84081 Baronissi, Salerno, Italy
| | - Pietro Vajro
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", Pediatrics Section, University of Salerno, 84081 Baronissi, Salerno, Italy
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14
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Plafker SM, Titcomb T, Zyla-Jackson K, Kolakowska A, Wahls T. Overview of diet and autoimmune demyelinating optic neuritis: a narrative review. IMMUNOMETABOLISM (COBHAM (SURREY, ENGLAND)) 2023; 5:e00022. [PMID: 37128292 PMCID: PMC10144304 DOI: 10.1097/in9.0000000000000022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 03/29/2023] [Indexed: 05/03/2023]
Abstract
This review summarizes the cellular and molecular underpinnings of autoimmune demyelinating optic neuritis (ADON), a common sequela of multiple sclerosis and other demyelinating diseases. We further present nutritional interventions tested for people with multiple sclerosis focusing on strategies that have shown efficacy or associations with disease course and clinical outcomes. We then close by discuss the potential dietary guidance for preventing and/or ameliorating ADON.
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Affiliation(s)
- Scott M. Plafker
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- *Correspondence: Scott M. Plafker, E-mail:
| | - Tyler Titcomb
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Katarzyna Zyla-Jackson
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Aneta Kolakowska
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Terry Wahls
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
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Cuthbert M, Lewandowska M, Freeman L, Devine C, Lee K, Kassam S. The Impact of Stopping Medications and Introducing a Whole Food Plant-Based Diet on Patients Living with Multiple Sclerosis - A Report of Two Cases. Am J Lifestyle Med 2023; 17:206-212. [PMID: 36896042 PMCID: PMC9989497 DOI: 10.1177/15598276221141403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
More than 2 million people live with multiple sclerosis worldwide and the prevalence has been increasing over time. Patients living with multiple sclerosis often explore diet and lifestyle interventions as a means of managing their symptoms and reducing reliance on medication; yet, these approaches are rarely discussed with their physicians. Currently, there is a lack of evidence on when to stop disease-modifying therapies (DMT), and recent research showed no statistically significant difference in the time between relapses when comparing participants who stopped DMT to those who did not, especially over the age of 45. This case report presents 2 patients with multiple sclerosis who made an informed decision to stop their DMT medications and have been managing their condition with a whole food plant-based diet and a healthy lifestyle approach. Over the period of 5 to 6 years since stopping the medications, each patient only had 1 multiple sclerosis flare-up to date. In the report, the focus is on the impact of diet on multiple sclerosis. It adds to currently available literature and encourages further research in the field of managing multiple sclerosis with lifestyle interventions.
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Affiliation(s)
- Monty Cuthbert
- Royal Sussex County Hospital, Brighton, UK (MC, ML); Plant Based Health Online, Bordon, UK(LF, SK); Conor Devine, Belfast, UK (CD); The Sensitive Foodie, Brighton, UK (KL); King's College London, London, UK (SK); and University of Winchester, Hampshire, UK (SK)
| | - Marta Lewandowska
- Royal Sussex County Hospital, Brighton, UK (MC, ML); Plant Based Health Online, Bordon, UK(LF, SK); Conor Devine, Belfast, UK (CD); The Sensitive Foodie, Brighton, UK (KL); King's College London, London, UK (SK); and University of Winchester, Hampshire, UK (SK)
| | - Laura Freeman
- Royal Sussex County Hospital, Brighton, UK (MC, ML); Plant Based Health Online, Bordon, UK(LF, SK); Conor Devine, Belfast, UK (CD); The Sensitive Foodie, Brighton, UK (KL); King's College London, London, UK (SK); and University of Winchester, Hampshire, UK (SK)
| | - Conor Devine
- Royal Sussex County Hospital, Brighton, UK (MC, ML); Plant Based Health Online, Bordon, UK(LF, SK); Conor Devine, Belfast, UK (CD); The Sensitive Foodie, Brighton, UK (KL); King's College London, London, UK (SK); and University of Winchester, Hampshire, UK (SK)
| | - Karen Lee
- Royal Sussex County Hospital, Brighton, UK (MC, ML); Plant Based Health Online, Bordon, UK(LF, SK); Conor Devine, Belfast, UK (CD); The Sensitive Foodie, Brighton, UK (KL); King's College London, London, UK (SK); and University of Winchester, Hampshire, UK (SK)
| | - Shireen Kassam
- Royal Sussex County Hospital, Brighton, UK (MC, ML); Plant Based Health Online, Bordon, UK(LF, SK); Conor Devine, Belfast, UK (CD); The Sensitive Foodie, Brighton, UK (KL); King's College London, London, UK (SK); and University of Winchester, Hampshire, UK (SK)
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16
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Erythrocyte Plasma Membrane Lipid Composition Mirrors That of Neurons and Glial Cells in Murine Experimental In Vitro and In Vivo Inflammation. Cells 2023; 12:cells12040561. [PMID: 36831228 PMCID: PMC9953778 DOI: 10.3390/cells12040561] [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: 01/05/2023] [Revised: 01/30/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023] Open
Abstract
Lipid membrane turnover and myelin repair play a central role in diseases and lesions of the central nervous system (CNS). The aim of the present study was to analyze lipid composition changes due to inflammatory conditions. We measured the fatty acid (FA) composition in erythrocytes (RBCs) and spinal cord tissue (gas chromatography) derived from mice affected by experimental allergic encephalomyelitis (EAE) in acute and remission phases; cholesterol membrane content (Filipin) and GM1 membrane assembly (CT-B) in EAE mouse RBCs, and in cultured neurons, oligodendroglial cells and macrophages exposed to inflammatory challenges. During the EAE acute phase, the RBC membrane showed a reduction in polyunsaturated FAs (PUFAs) and an increase in saturated FAs (SFAs) and the omega-6/omega-3 ratios, followed by a restoration to control levels in the remission phase in parallel with an increase in monounsaturated fatty acid residues. A decrease in PUFAs was also shown in the spinal cord. CT-B staining decreased and Filipin staining increased in RBCs during acute EAE, as well as in cultured macrophages, neurons and oligodendrocyte precursor cells exposed to inflammatory challenges. This regulation in lipid content suggests an increased cell membrane rigidity during the inflammatory phase of EAE and supports the investigation of peripheral cell membrane lipids as possible biomarkers for CNS lipid membrane concentration and assembly.
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17
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Ghasemi Darestani N, Bahrami A, Mozafarian MR, Esmalian Afyouni N, Akhavanfar R, Abouali R, Moradian A, Lorase S. Association of Polyunsaturated Fatty Acid Intake on Inflammatory Gene Expression and Multiple Sclerosis: A Systematic Review and Meta-Analysis. Nutrients 2022; 14:nu14214627. [PMID: 36364885 PMCID: PMC9656750 DOI: 10.3390/nu14214627] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/24/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
The health benefits of omega-3 fatty acid (FA) supplementation on inflammatory gene expression (IGE) and multiple sclerosis (MS) are becoming more evident. However, an overview of the results from randomized controlled trials is lacking. This study aimed to conduct a meta-analysis to evaluate the effect of omega-3 fatty acid intake on MS (based on the criteria of the Expanded Disability Status Scale (EDSS)) and inflammatory gene expression (IGE). A search was conducted of PubMed, EMBASE, and Web of Science for cohort studies published from the inception of the database up to May 2022 that assessed the associations of omega-3 polyunsaturated fatty acids (n-3 PUFAs), docosahexaenoic acid (DHA), α-linolenic acid (ALA), and eicosapentaenoic acid (EPA) with EDSS and inflammatory gene expression (peroxisome proliferator-activated receptor gamma (PPAR-γ), tumor necrosis factor-alpha (TNF-α), interleukin-1 (IL-1), interleukin-6 (IL-6), and interleukin-8 (IL-8)) outcomes. For the highest vs. lowest comparison, the relative risk (RR) estimates with a 95% confidence interval (CI) were pooled using the random-effect model. In total, 13 cohort studies with 1353 participants were included in the meta-analysis during periods of 3 to 144 weeks. A significant inverse relationship was found between DHA and EDSS scores (RR: 1.05; 95% CI: 0.62, 1.48; p < 0.00001). Our results also showed that omega-3 FAs significantly upregulated the gene expression of PPAR-γ (RR: 0.95; 95% CI: 0.52, 1.38; p < 0.03) and downregulated the expression of TNF-α (RR: −0.15; 95% CI: −0.99, 0.70; p < 0.00001) and IL-1 (RR: −0.60; 95% CI: −1.02, −0.18; p < 0.003). There was no clear evidence of publication bias with Egger’s tests for inflammatory gene expression (p = 0.266). Moreover, n-3 PUFAs and EPA were not significantly associated with EDSS scores (p > 0.05). In this meta-analysis of cohort studies, blood omega-3 FA concentrations were inversely related to inflammatory gene expression (IGE) and EDSS score, which indicates that they may hold great potential markers for the diagnosis, prognosis, and management of MS. However, further clinical trials are required to confirm the potential effects of the omega-3 FAs on MS disease management.
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Affiliation(s)
| | - Abolfazl Bahrami
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Tehran 1417643184, Iran
- Biomedical Center for Systems Biology Science Munich, Ludwig-Maximilians-University, 80333 Munich, Germany
- Correspondence: (A.B.); (A.M.); Tel.: +98-9199300065 (A.B.)
| | - Mohammad Reza Mozafarian
- Department of Nutrition, School of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr 75, Iran
| | - Nazgol Esmalian Afyouni
- Isfahan Neurosciences Research Center, Alzahra Research Institute, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
| | - Roozbeh Akhavanfar
- School of Medicine, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
| | - Reza Abouali
- Department of Health Sciences, Interdisciplinary Research Center of Autoimmune Diseases—IRCAD, Università del Piemonte Orientale, 13100 Novara, Italy
| | - Arsalan Moradian
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Pharmaceutical Sciences, Pharmacist, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
- Correspondence: (A.B.); (A.M.); Tel.: +98-9199300065 (A.B.)
| | - Saman Lorase
- Department of Health, University of Calgary, Calgary, AB T2N 1N4, Canada
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18
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Shrode RL, Cady N, Jensen SN, Borcherding N, Mangalam AK. Isoflavone consumption reduces inflammation through modulation of phenylalanine and lipid metabolism. Metabolomics 2022; 18:84. [PMID: 36289122 PMCID: PMC10148689 DOI: 10.1007/s11306-022-01944-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 10/11/2022] [Indexed: 12/29/2022]
Abstract
INTRODUCTION Phytoestrogens found in soy, fruits, peanuts, and other legumes, have been identified as metabolites capable of providing beneficial effects in multiple pathological conditions due to their ability to mimic endogenous estrogen. Interestingly, the health-promoting effects of some phytoestrogens, such as isoflavones, are dependent on the presence of specific gut bacteria. Specifically, gut bacteria can metabolize isoflavones into equol, which has a higher affinity for endogenous estrogen receptors compared to dietary isoflavones. We have previously shown that patients with multiple sclerosis (MS), a neuroinflammatory disease, lack gut bacteria that are able to metabolize phytoestrogen. Further, we have validated the importance of both isoflavones and phytoestrogen-metabolizing gut bacteria in disease protection utilizing an animal model of MS. Specifically, we have shown that an isoflavone-rich diet can protect from neuroinflammatory diseases, and that protection was dependent on the ability of gut bacteria to metabolize isoflavones into equol. Additionally, mice on a diet with isoflavones showed an anti-inflammatory response compared to the mice on a diet lacking isoflavones. However, it is unknown how isoflavones and/or equol mediates their protective effects, especially their effects on host metabolite levels. OBJECTIVES In this study, we utilized untargeted metabolomics to identify metabolites found in plasma that were modulated by the presence of dietary isoflavones. RESULTS We found that the consumption of isoflavones increased anti-inflammatory monounsaturated fatty acids and beneficial polyunsaturated fatty acids while reducing pro-inflammatory glycerophospholipids, sphingolipids, phenylalanine metabolism, and arachidonic acid derivatives. CONCLUSION Isoflavone consumption alters the systemic metabolic landscape through concurrent increases in monounsaturated fatty acids and beneficial polyunsaturated fatty acids plus reduction in pro-inflammatory metabolites and pathways. This highlights a potential mechanism by which an isoflavone diet may modulate immune-mediated disease.
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Affiliation(s)
- Rachel L Shrode
- Department of Informatics, University of Iowa, Iowa City, IA, 52242, USA
| | - Nicole Cady
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA, 52242, USA
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Samantha N Jensen
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA, 52242, USA
- Division of Gastroenterology, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, Cornell University, New York, NY, USA
- Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, Cornell University, New York, NY, USA
| | - Nicholas Borcherding
- Department of Pathology and Immunology, School of Medicine, Washington University, St. Louis, MO, 63110, USA
| | - Ashutosh K Mangalam
- Department of Informatics, University of Iowa, Iowa City, IA, 52242, USA.
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA, 52242, USA.
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA, 52242, USA.
- Iowa Institute for Oral Health Research, College of Dentistry, University of Iowa, Iowa City, IA, 52242, USA.
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Zhang J, Xiao Y, Hu J, Liu S, Zhou Z, Xie L. Lipid metabolism in type 1 diabetes mellitus: Pathogenetic and therapeutic implications. Front Immunol 2022; 13:999108. [PMID: 36275658 PMCID: PMC9583919 DOI: 10.3389/fimmu.2022.999108] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Type 1 diabetes mellitus (T1DM) is a chronic autoimmune disease with insulin deficiency due to pancreatic β cell destruction. Multiple independent cohort studies revealed specific lipid spectrum alterations prior to islet autoimmunity in T1DM. Except for serving as building blocks for membrane biogenesis, accumulative evidence suggests lipids and their derivatives can also modulate different biological processes in the progression of T1DM, such as inflammation responses, immune attacks, and β cell vulnerability. However, the types of lipids are huge and majority of them have been largely unexplored in T1DM. In this review, based on the lipid classification system, we summarize the clinical evidence on dyslipidemia related to T1DM and elucidate the potential mechanisms by which they participate in regulating inflammation responses, modulating lymphocyte function and influencing β cell susceptibility to apoptosis and dysfunction. This review systematically recapitulates the role and mechanisms of various lipids in T1DM, providing new therapeutic approaches for T1DM from a nutritional perspective.
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Jayasinghe M, Prathiraja O, Kayani AMA, Jena R, Caldera D, Silva MS, Singhal M, Pierre J. The Role of Diet and Gut Microbiome in Multiple Sclerosis. Cureus 2022; 14:e28975. [PMID: 36237764 PMCID: PMC9548326 DOI: 10.7759/cureus.28975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2022] [Indexed: 11/05/2022] Open
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