1
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Lee JE, Lee JH, Koh JM, Im DS. Free Fatty Acid 4 Receptor Activation Attenuates Collagen-Induced Arthritis by Rebalancing Th1/Th17 and Treg Cells. Int J Mol Sci 2024; 25:5866. [PMID: 38892051 PMCID: PMC11172425 DOI: 10.3390/ijms25115866] [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: 04/30/2024] [Revised: 05/22/2024] [Accepted: 05/25/2024] [Indexed: 06/21/2024] Open
Abstract
Dietary supplementation with n-3 polyunsaturated fatty acids (PUFA) has been found to be beneficial in rodent rheumatoid arthritis models and human trials. However, the molecular targets of n-3 PUFAs and their beneficial effects on rheumatoid arthritis are under-researched. Free fatty acid receptor 4 (FFA4, also known as GPR120) is a receptor for n-3 PUFA. We aim to investigate whether FFA4 activation reduces collagen-induced rheumatoid arthritis (CIA) by using an FFA4 agonist, compound A (CpdA), in combination with DBA-1J Ffa4 gene wild-type (WT) and Ffa4 gene knock-out (KO) mice. CIA induced an increase in the arthritis score, foot edema, synovial hyperplasia, pannus formation, proteoglycan loss, cartilage damage, and bone erosion, whereas the administration of CpdA significantly suppressed those increases in Ffa4 WT mice but not Ffa4 gene KO mice. CIA increased mRNA expression levels of pro-inflammatory Th1/Th17 cytokines, whereas CpdA significantly suppressed those increases in Ffa4 WT mice but not Ffa4 gene KO mice. CIA induced an imbalance between Th1/Th17 and Treg cells, whereas CpdA rebalanced them in spleens from Ffa4 WT mice but not Ffa4 gene KO mice. In SW982 synovial cells, CpdA reduced the LPS-induced increase in pro-inflammatory cytokine levels. In summary, the present results suggest that the activation of FFA4 in immune and synovial cells could suppress the characteristics of rheumatoid arthritis and be an adjuvant therapy.
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MESH Headings
- Animals
- Arthritis, Experimental/pathology
- Arthritis, Experimental/immunology
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/drug therapy
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Th17 Cells/immunology
- Th17 Cells/metabolism
- Th17 Cells/drug effects
- Receptors, G-Protein-Coupled/metabolism
- Receptors, G-Protein-Coupled/genetics
- Receptors, G-Protein-Coupled/agonists
- Mice
- Th1 Cells/immunology
- Th1 Cells/metabolism
- Th1 Cells/drug effects
- Mice, Knockout
- Mice, Inbred DBA
- Arthritis, Rheumatoid/metabolism
- Arthritis, Rheumatoid/drug therapy
- Arthritis, Rheumatoid/immunology
- Arthritis, Rheumatoid/pathology
- Male
- Cytokines/metabolism
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Affiliation(s)
- Jung-Eun Lee
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (J.-E.L.); (J.-H.L.)
| | - Ju-Hyun Lee
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (J.-E.L.); (J.-H.L.)
| | - Jung-Min Koh
- Division of Endocrinology and Metabolism, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Republic of Korea;
| | - Dong-Soon Im
- Department of Biomedical and Pharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea; (J.-E.L.); (J.-H.L.)
- Division of Endocrinology and Metabolism, Asan Medical Center, College of Medicine, University of Ulsan, Seoul 05505, Republic of Korea;
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2
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Yang X, Zhang W, Wang L, Zhao Y, Wei W. Metabolite-sensing GPCRs in rheumatoid arthritis. Trends Pharmacol Sci 2024; 45:118-133. [PMID: 38182481 DOI: 10.1016/j.tips.2023.12.001] [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: 11/13/2023] [Revised: 12/05/2023] [Accepted: 12/12/2023] [Indexed: 01/07/2024]
Abstract
Persistent inflammation in damaged joints results in metabolic dysregulation of the synovial microenvironment, causing pathogenic alteration of cell activity in rheumatoid arthritis (RA). Recently, the role of metabolite and metabolite-sensing G protein-coupled receptors (GPCRs) in the RA-related inflammatory immune response (IIR) has become a focus of research attention. These GPCRs participate in the progression of RA by modulating immune cell activation, migration, and inflammatory responses. Here, we discuss recent evidence implicating metabolic dysregulation in RA pathogenesis, focusing on the connection between RA-related IIR and GPCR signals originating from the synovial joint and gut. Furthermore, we discuss future directions for targeting metabolite-sensing GPCRs for therapeutic benefit, emphasizing the importance of identifying endogenous ligands and investigating the various transduction mechanisms involved.
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Affiliation(s)
- Xuezhi Yang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Wankang Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Luping Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China
| | - Yingjie Zhao
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei 230601, China.
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-Inflammatory and Immune Medicine, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Ministry of Education, Hefei 230032, China.
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3
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Alzahrani AYA, Shehab WS, Amer AH, Assy MG, Mouneir SM, Aziz MA, Abdel Hamid AM. Design, synthesis, pharmacological evaluation, and in silico studies of the activity of novel spiro pyrrolo[3,4- d]pyrimidine derivatives. RSC Adv 2024; 14:995-1008. [PMID: 38174254 PMCID: PMC10759174 DOI: 10.1039/d3ra07078f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/09/2023] [Indexed: 01/05/2024] Open
Abstract
In the present study, spiro compounds are shown to have distinctive characteristics because of their interesting conformations and their structural impacts on biological systems. A new family of functionalized spiro pyrrolo[3,4-d]pyrimidines is prepared via the one-pot condensation reaction of amino cyclohexane derivatives with benzaldehyde to prepare fused azaspiroundecanedione and azaspirodecenone/thione derivatives. A series of synthesized spiro compounds were scanned against DPPH and evaluated for their ability to inhibit COX-1 and COX-2. All compounds exhibit significant antiinflammatory activity, and they inhibited both COX-1 and COX-2 enzymes with a selectivity index higher than celecoxib as a reference drug. The most powerful and selective COX-2 inhibitor compounds were 11 and 6, with selectivity indices of 175 and 129.21 in comparison to 31.52 of the standard celecoxib. However, candidate 14 showed a very promising antiinflammatory activity with an IC50 of 6.00, while celecoxib had an IC50 of 14.50. Our findings are promising in the area of medicinal chemistry for further optimization of the newly designed and synthesized compounds regarding the discussed structure-activity relationship study (SAR), in order to obtain a superior antioxidant lead compound in the near future. All chemical structures of the novel synthesized candidates were unequivocally elucidated and confirmed utilizing spectroscopic and elemental investigations.
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Affiliation(s)
- Abdullah Y A Alzahrani
- Department of Chemistry, Faculty of Science and Arts, King Khalid University Mohail Assir Saudi Arabia
| | - Wesam S Shehab
- Department of Chemistry, Faculty of Science, Zagazig University Zagazig 44519 Egypt
| | - Asmaa H Amer
- Department of Chemistry, Faculty of Science, Zagazig University Zagazig 44519 Egypt
| | - Mohamed G Assy
- Department of Chemistry, Faculty of Science, Zagazig University Zagazig 44519 Egypt
| | - Samar M Mouneir
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University Cairo 12211 Egypt
| | - Maged A Aziz
- Department of Chemistry, Faculty of Science, Zagazig University Zagazig 44519 Egypt
| | - Atef M Abdel Hamid
- Department of Chemistry, Faculty of Science, Zagazig University Zagazig 44519 Egypt
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4
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Akbarzadeh R, Czyz C, Thomsen SY, Schilf P, Murthy S, Sadik CD, König P. Monocyte populations are involved in the pathogenesis of experimental epidermolysis bullosa acquisita. Front Immunol 2023; 14:1241461. [PMID: 38116004 PMCID: PMC10728641 DOI: 10.3389/fimmu.2023.1241461] [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: 06/16/2023] [Accepted: 11/21/2023] [Indexed: 12/21/2023] Open
Abstract
Monocytes play a significant role in the pathogenesis of most inflammatory diseases, including autoimmune diseases. Herein, different subpopulations of monocytes often play differential, partially antagonistic roles, in the regulation of tissue populations. Pemphigoid diseases constitute a group of autoimmune blistering skin diseases featuring a marked infiltration of the dermis with immune cells, including monocytes. The monocyte subsets infiltrating the skin, however, have largely remained elusive. Monocyte adhesion and recruitment into the inflamed tissues are regulated by chemokine receptors, most prominently by CCR2 and CX3CR1. To delineate the involvement of monocyte populations in autoimmune blistering skin diseases, we spatiotemporally monitored the dynamic spectrum of monocyte populations that infiltrate the inflamed skin using multiphoton intravital imaging and reporter mice for chemokine receptors. Experimental epidermolysis bullosa acquisita (EBA) was induced by injection of anti-murine type VII collagen (amCOLVII) IgG into the Csf1rEGFP-reporter mice, where circulating myeloid cells, such as monocytes and neutrophils, express an EGFP. EGFP+ cells, including neutrophils and monocytes, were present in the skin, immediately after the deposition of the amCOLVII antibody at the dermal-epidermal junction. To investigate the recruitment and involvement of different monocyte-derived cell populations in the disease course further, EBA was induced in CCR2RFP/+-reporter and CX3CR1GFP/+-reporter mice. A comparable distribution of red fluorescent protein (RFP)+ or green fluorescent protein (GFP)+ was found in both diseased mice and their respective controls over time, indicating the similar recruitment of monocytes into the skin following the binding of autoantibodies. Experiments were extended to the CCR2RFP/RFP-deficient and CX3CR1GFP/GFP-deficient mice to determine whether monocyte recruitment and disease severity are compromised in the absence of the receptor. A comparable pattern was seen in the recruitment of monocytes into the skin in both reporter and deficient mice. However, in contrast to similar disease severity between CX3CR1-deficient and reporter mice, CCR2-deficient mice developed significantly less disease than CCR2-reporter mice, as indicated by the percentage of affected area of ears. Collectively, our observations indicate that while CCR2 and CX3CR1 receptors are not involved in the recruitment of monocytes into the skin, CCR2 deficiency is associated with improved disease outcomes in experimental EBA in mice.
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Affiliation(s)
- Reza Akbarzadeh
- Department of Rheumatology and Clinical Immunology, University of Lübeck, Lübeck, Germany
- Institute of Anatomy, University of Lübeck, Lübeck, Germany
| | | | - Sarah-Yasmin Thomsen
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Paul Schilf
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Sripriya Murthy
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Christian D. Sadik
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Peter König
- Institute of Anatomy, University of Lübeck, Lübeck, Germany
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5
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Bieber K, Bezdek S, Gupta Y, Vorobyev A, Sezin T, Gross N, Prüssmann J, Sayegh JP, Becker M, Mousavi S, Hdnah A, Künzel S, Ibrahim SM, Ludwig RJ, Gullberg D, Sadik CD. Forward genetics and functional analysis highlight Itga11 as a modulator of murine psoriasiform dermatitis. J Pathol 2023; 261:184-197. [PMID: 37565309 DOI: 10.1002/path.6162] [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: 09/15/2022] [Revised: 06/07/2023] [Accepted: 06/13/2023] [Indexed: 08/12/2023]
Abstract
Psoriasis is a chronic inflammatory skin condition. Repeated epicutaneous application of Aldara® (imiquimod) cream results in psoriasiform dermatitis in mice. The Aldara®-induced psoriasiform dermatitis (AIPD) mouse model has been used to examine the pathogenesis of psoriasis. Here, we used a forward genetics approach in which we compared AIPD that developed in 13 different inbred mouse strains to identify genes and pathways that modulated disease severity. Among our primary results, we found that the severity of AIPD differed substantially between different strains of inbred mice and that these variations were associated with polymorphisms in Itga11. The Itga11 gene encodes the integrin α11 subunit that heterodimerizes with the integrin β1 subunit to form integrin α11β1. Less information is available about the function of ITGA11 in skin inflammation; however, a role in the regulation of cutaneous wound healing, specifically the development of dermal fibrosis, has been described. Experiments performed with Itga11 gene-deleted (Itga11-/- ) mice revealed that the integrin α11 subunit contributes substantially to the clinical phenotype as well as the histopathological and molecular findings associated with skin inflammation characteristic of AIPD. Although the skin transcriptomes of Itga11-/- and WT mice do not differ from one another under physiological conditions, distinct transcriptomes emerge in these strains in response to the induction of AIPD. Most of the differentially expressed genes contributed to extracellular matrix organization, immune system, and metabolism of lipids pathways. Consistent with these findings, we detected a reduced number of fibroblasts and inflammatory cells, including macrophages, T cells, and tissue-resident memory T cells in skin samples from Itga11-/- mice in response to AIPD induction. Collectively, our results reveal that Itga11 plays a critical role in promoting skin inflammation in AIPD and thus might be targeted for the development of novel therapeutics for psoriasiform skin conditions. © 2023 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Katja Bieber
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Siegfried Bezdek
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Yask Gupta
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Artem Vorobyev
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Tanya Sezin
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Natalie Gross
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | - Jasper Prüssmann
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Jean-Paul Sayegh
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Mareike Becker
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Sadegh Mousavi
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Ashref Hdnah
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Sven Künzel
- Max-Planck Institute for Evolutionary Biology, Plön, Germany
| | - Saleh M Ibrahim
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
- College of Medicine, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Ralf J Ludwig
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Lübeck Institute of Experimental Dermatology, University of Lübeck, Lübeck, Germany
| | | | - Christian D Sadik
- Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
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6
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Immune regulation of poly unsaturated fatty acids and free fatty acid receptor 4. J Nutr Biochem 2023; 112:109222. [PMID: 36402250 DOI: 10.1016/j.jnutbio.2022.109222] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 09/24/2022] [Accepted: 11/10/2022] [Indexed: 11/19/2022]
Abstract
Fatty acid metabolism contributes to energy supply and plays an important role in regulating immunity. Free fatty acids (FFAs) bind to free fatty acid receptors (FFARs) on the cell surface and mediate effects through the intra-cellular FFAR signaling pathways. FFAR4, also known as G-protein coupled receptor 120 (GPR120), has been identified as the primary receptor of omega-3 polyunsaturated fatty acids (ω-3 PUFAs). FFAR4 is a promising target for treating metabolic and inflammatory disorders due to its immune regulatory functions and the discovery of highly selective and efficient agonists. This review summarizes the reported immune regulatory functions of ω-3 PUFAs and FFAR4 in immune cells and immune-related diseases. We also speculate possible involvements of ω-3 PUFAs and FFAR4 in other types of inflammatory disorders.
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7
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How Arrestins and GRKs Regulate the Function of Long Chain Fatty Acid Receptors. Int J Mol Sci 2022; 23:ijms232012237. [PMID: 36293091 PMCID: PMC9602559 DOI: 10.3390/ijms232012237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/03/2022] [Accepted: 10/08/2022] [Indexed: 11/16/2022] Open
Abstract
FFA1 and FFA4, two G protein-coupled receptors that are activated by long chain fatty acids, play crucial roles in mediating many biological functions in the body. As a result, these fatty acid receptors have gained considerable attention due to their potential to be targeted for the treatment of type-2 diabetes. However, the relative contribution of canonical G protein-mediated signalling versus the effects of agonist-induced phosphorylation and interactions with β-arrestins have yet to be fully defined. Recently, several reports have highlighted the ability of β-arrestins and GRKs to interact with and modulate different functions of both FFA1 and FFA4, suggesting that it is indeed important to consider these interactions when studying the roles of FFA1 and FFA4 in both normal physiology and in different disease settings. Here, we discuss what is currently known and show the importance of understanding fully how β-arrestins and GRKs regulate the function of long chain fatty acid receptors.
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8
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Rychtrmoc D, Staňková P, Kučera O, Červinková Z. Comparison of two anti-diabetic monoestolides regarding effects on intact murine liver tissue. Arch Physiol Biochem 2022; 128:985-992. [PMID: 32208934 DOI: 10.1080/13813455.2020.1743322] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
CONTEXT Monoestolides belonging to the fatty acid-hydroxy fatty acid (FAHFA) family have recently emerged as promising insulin sensitizers. OBJECTIVE To investigate and compare impact of two selected FAHFA isomers, namely 9-hexadecanoyloxy-octadecanoic acid [9-PAHSA] and 9-(9Z-octadecenoyloxy)-octadecanoic acid [9-OAHSA], on intact livers in C57BL/6J mice. MATERIALS AND METHODS Short-term in vivo study with intragastric gavage of 13 mg/kg of substances. Morphological, biochemical and high-resolution respirometric assessment of plasma and liver tissue or homogenates thereof. RESULTS The 9-OAHSA-gavaged mice had the highest final total body weight, the lowest free fatty acid circulating levels and the highest plasma activities of both ALT and AST. No significant changes of ambient glycaemia were found, however 9-PAHSA-gavaged mice tended to have lower glycaemia than other animals. Respirometry proved no substance-dependent differences. DISCUSSION AND CONCLUSION 9-PAHSA was more metabolically beneficial and less hepatotoxic than 9-OAHSA. Bioenergetic machinery of liver homogenates seemed unaffected at our FAHFA dose.
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Affiliation(s)
- David Rychtrmoc
- Department of Physiology, Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Pavla Staňková
- Department of Physiology, Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Otto Kučera
- Department of Physiology, Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Zuzana Červinková
- Department of Physiology, Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
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9
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Free Fatty Acid Receptor 4 (FFA4) Activation Ameliorates Imiquimod-Induced Psoriasis in Mice. Int J Mol Sci 2022; 23:ijms23094482. [PMID: 35562873 PMCID: PMC9105873 DOI: 10.3390/ijms23094482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/14/2022] [Accepted: 04/17/2022] [Indexed: 11/29/2022] Open
Abstract
Dietary supplementation with n-3 polyunsaturated fatty acids (n-3 PUFA) has been used as an adjunct therapy for psoriasis due to its anti-inflammatory properties. Free fatty acid receptor 4 (FFA4 or GPR120) is a receptor-sensing n-3 PUFA. In the present study, we examined whether FFA4 acted as a therapeutic target for n-3 PUFA in psoriasis therapy. Experimentally, psoriasis-like skin lesions were induced by treatment with imiquimod for 6 consecutive days. A selective FFA4 agonist, Compound A (30 mg/kg), was used in FFA4 WT and FFA4 KO mice. Imiquimod-induced psoriasis-like skin lesions, which present as erythematous papules and plaques with silver scaling, as well as markedly elevated IL-17/IL-23 cytokine levels in skin tissues, were significantly suppressed by Compound A in FFA4 WT mice, but not in FFA4 KO mice. Enlarged lymph nodes and spleens, as well as imiquimod-induced, elevated IL-17/IL-23 cytokine levels, were also strongly suppressed by Compound A in FFA4 WT mice, but not in FFA4 KO mice. Imiquimod-induced increases in the CD4+IL-17A+ T cell population in lymph nodes and spleens were suppressed by Compound A treatment in FFA4 WT mice; however, this was not seen in FFA4 KO mice. Furthermore, compound A suppressed the differentiation of CD4+ naïve T cells from splenocytes into TH17 cells in an FFA4-dependent manner. In conclusion, we demonstrated that the activation of FFA4 ameliorates imiquimod-induced psoriasis, and the suppression of the differentiation of TH17 cells may partly contribute to its efficacy. Therefore, we suggest that FFA4 could be a therapeutic target for psoriasis therapy.
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10
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Binienda A, Makaro A, Talar M, Krajewska JB, Tarasiuk A, Bartoszek A, Fabisiak A, Mosińska P, Niewinna K, Dziedziczak K, Świerczyński M, Kordek R, Salaga M, Fichna J. Characterization of the Synergistic Effect between Ligands of Opioid and Free Fatty Acid Receptors in the Mouse Model of Colitis. Molecules 2021; 26:molecules26226827. [PMID: 34833919 PMCID: PMC8626023 DOI: 10.3390/molecules26226827] [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: 09/14/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 11/16/2022] Open
Abstract
Background: Recent studies suggest that lipids, including free fatty acids (FFAs), are necessary for proper μ opioid receptor (MOR) binding and that activation of opioid receptors (ORs) improves intestinal inflammation. The objective of the study was to investigate a possible interaction between the ORs and FFA receptors (FFARs) ligands in the colitis. Methods: The potential synergistic effect of ORs and FFARs ligands was evaluated using mouse model of acute colitis induced by dextran sulfate sodium (DSS, 4%). Compounds were injected intraperitoneally (i.p.) once or twice daily at the doses of 0.01 or 0.02 mg/kg body weight (BW) (DAMGO—an MOR agonist), 0.3 mg/kg BW (DPDPE—a δ OR (DOR) agonist) and 1 mg/kg BW (naloxone—a non-selective OR antagonist, GLPG 0974—a FFAR2 antagonist, GSK 137647—a FFAR4 agonist and AH 7614—a FFAR4 antagonist) for 4 days. Results: Myeloperoxidase (MPO) activity was significantly decreased after DAMGO (0.02 mg/kg BW) and GSK 137647 (1 mg/kg BW) administration and co-administration as compared to DSS group. Conclusions: Treatment with ligands of ORs and FFARs may affect the immune cells in the inflammation; however, no significant influence on the severity of colitis and no synergistic effect were observed.
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MESH Headings
- Aniline Compounds/administration & dosage
- Animals
- Butyrates/administration & dosage
- Colitis/drug therapy
- Colitis/immunology
- Colitis/metabolism
- Disease Models, Animal
- Drug Synergism
- Enkephalin, Ala(2)-MePhe(4)-Gly(5)-/administration & dosage
- Enkephalin, D-Penicillamine (2,5)-/administration & dosage
- Inflammation/drug therapy
- Inflammation/metabolism
- Ligands
- Male
- Mice
- Mice, Inbred BALB C
- Naloxone/administration & dosage
- Narcotic Antagonists/administration & dosage
- Peroxidase/metabolism
- Receptors, G-Protein-Coupled/agonists
- Receptors, G-Protein-Coupled/antagonists & inhibitors
- Receptors, G-Protein-Coupled/metabolism
- Receptors, Opioid/agonists
- Receptors, Opioid/metabolism
- Receptors, Opioid, delta/agonists
- Receptors, Opioid, delta/metabolism
- Receptors, Opioid, mu/agonists
- Receptors, Opioid, mu/metabolism
- Sulfonamides/administration & dosage
- Thiophenes/administration & dosage
- Xanthenes/administration & dosage
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Affiliation(s)
- Agata Binienda
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
| | - Adam Makaro
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
| | - Marcin Talar
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
| | - Julia B. Krajewska
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
| | - Aleksandra Tarasiuk
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
| | - Adrian Bartoszek
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
| | - Adam Fabisiak
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
- Department of Digestive Tract Diseases, Medical University of Lodz, 93-281 Lodz, Poland
| | - Paula Mosińska
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
| | - Karolina Niewinna
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
| | - Katarzyna Dziedziczak
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
| | - Mikołaj Świerczyński
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
| | - Radzisław Kordek
- Department of Pathology, Medical University of Lodz, 92-215 Lodz, Poland;
| | - Maciej Salaga
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
| | - Jakub Fichna
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, 92-215 Lodz, Poland; (A.B.); (A.M.); (M.T.); (J.B.K.); (A.T.); (A.B.); (A.F.); (P.M.); (K.N.); (K.D.); (M.Ś.); (M.S.)
- Correspondence: ; Tel.: +48-42-272-57-07
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11
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Hidalgo MA, Carretta MD, Burgos RA. Long Chain Fatty Acids as Modulators of Immune Cells Function: Contribution of FFA1 and FFA4 Receptors. Front Physiol 2021; 12:668330. [PMID: 34276398 PMCID: PMC8280355 DOI: 10.3389/fphys.2021.668330] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 06/04/2021] [Indexed: 12/13/2022] Open
Abstract
Long-chain fatty acids are molecules that act as metabolic intermediates and constituents of membranes; however, their novel role as signaling molecules in immune function has also been demonstrated. The presence of free fatty acid (FFA) receptors on immune cells has contributed to the understanding of this new role of long-chain fatty acids (LCFAs) in immune function, showing their role as anti-inflammatory or pro-inflammatory molecules and elucidating their intracellular mechanisms. The FFA1 and FFA4 receptors, also known as GPR40 and GPR120, respectively, have been described in macrophages and neutrophils, two key cells mediating innate immune response. Ligands of the FFA1 and FFA4 receptors induce the release of a myriad of cytokines through well-defined intracellular signaling pathways. In this review, we discuss the cellular responses and intracellular mechanisms activated by LCFAs, such as oleic acid, linoleic acid, palmitic acid, docosahexaenoic acid (DHA), and eicosapentaenoic acid (EPA), in T-cells, macrophages, and neutrophils, as well as the role of the FFA1 and FFA4 receptors in immune cells.
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Affiliation(s)
- Maria A Hidalgo
- Laboratory of Inflammation Pharmacology, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia, Chile
| | - Maria D Carretta
- Laboratory of Inflammation Pharmacology, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia, Chile
| | - Rafael A Burgos
- Laboratory of Inflammation Pharmacology, Institute of Pharmacology and Morphophysiology, Universidad Austral de Chile, Valdivia, Chile
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12
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Son SE, Park SJ, Koh JM, Im DS. Free fatty acid receptor 4 (FFA4) activation ameliorates 2,4-dinitrochlorobenzene-induced atopic dermatitis by increasing regulatory T cells in mice. Acta Pharmacol Sin 2020; 41:1337-1347. [PMID: 32555509 PMCID: PMC7609340 DOI: 10.1038/s41401-020-0435-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 05/09/2020] [Indexed: 02/07/2023] Open
Abstract
High dose intake of docosahexaenoic acid showed beneficial effects on atopic dermatitis in patients and was found to increase regulatory T cells in mice, but its molecular target has not been identified. Free fatty acid receptor 4 (FFA4, also known as GPR120) is a receptor sensing polyunsaturated long-chain fatty acids including docosahexaenoic acid. In the present study, we examined whether FFA4 acted as a therapeutic target of docosahexaenoic acid for treating atopic dermatitis. Experimental atopic dermatitis was induced in mice by 2,4-dinitrochlorobenzene (DNCB) sensitization on day 0, followed by repeated DNCB challenges from D7 to D48. The mice were treated with a selective agonist compound A (30 mg· kg−1· d−1, ip) from D19 to D48, and sacrificed on D49. We found that DNCB-induced atopic dermatitis-like skin lesions, i.e. hypertrophy and mast cell infiltration in skin tissues, as well as markedly elevated serum IgE levels. Administration of compound A significantly suppressed the atopic responses in ears and lymph nodes, such as hypertrophy and mast cell infiltration in the ears, enlarged sizes of lymph nodes, and elevated serum IgE and levels of cytokines IL-4, IL-13, IL-17, and IFN-γ in ear tissue. The therapeutic effects of compound A were abolished by FFA4 knockout. Similarly, increased CD4+Foxp3+ regulatory T-cell population in lymph nodes was observed in wide-type mice treated with compound A, but not seen in FFA4-deficient mice. In conclusion, we demonstrate that activation of FFA4 ameliorates atopic dermatitis by increasing CD4+Foxp3+ regulatory T cells, suggesting FFA4 as a therapeutic target for atopic dermatitis.
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13
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Jegodzinski L, Sezin T, Loser K, Mousavi S, Zillikens D, Sadik CD. The G Protein-Coupled Receptor (GPR) 15 Counteracts Antibody-Mediated Skin Inflammation. Front Immunol 2020; 11:1858. [PMID: 32922401 PMCID: PMC7456807 DOI: 10.3389/fimmu.2020.01858] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 07/10/2020] [Indexed: 11/13/2022] Open
Abstract
The G protein-coupled receptor 15 (GPR15) has recently been highlighted as an important regulator of T cell trafficking into the gut under physiological and pathophysiological conditions. Additionally, circumstantial evidence has accumulated that GPR15 may also play a role in the regulation of chronic inflammation. However, the (patho)physiological significance of GPR15 has, in general, remained rather enigmatic. In the present study, we have addressed the role of GPR15 in the effector phase of autoantibody-mediated skin inflammation, specifically in the antibody transfer mouse model of bullous pemphigoid-like epidermolysis bullosa acquisita (BP-like EBA). Subjecting Gpr15 -/- mice to this model, we have uncovered that GPR15 counteracts skin inflammation. Thus, disease was markedly aggravated in Gpr15 -/- mice, which was associated with an increased accumulation of γδ T cells in the dermis. Furthermore, GPR15L, the recently discovered cognate ligand of GPR15, was markedly upregulated in inflamed skin. Collectively, our results highlight GPR15 as counter-regulator of neutrophilic, antibody-mediated cutaneous inflammation. Enhancing the activity of GPR15 may therefore constitute a novel therapeutic principle in the treatment of pemphigoid diseases, such as BP-like EBA.
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Affiliation(s)
- Lina Jegodzinski
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Tanya Sezin
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Karin Loser
- Department of Dermatology, University of Münster, Münster, Germany
| | - Sadegh Mousavi
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Detlef Zillikens
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany.,Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
| | - Christian D Sadik
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany.,Center for Research on Inflammation of the Skin, University of Lübeck, Lübeck, Germany
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14
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Määttänen P, Lurz E, Botts SR, Wu RY, Robinson SC, Yeung CW, Colas R, Li B, Johnson-Henry KC, Surette ME, Dalli J, Sherman PM. Plant- and Fish-Derived n-3 PUFAs Suppress Citrobacter Rodentium-Induced Colonic Inflammation. Mol Nutr Food Res 2020; 64:e1900873. [PMID: 31945799 DOI: 10.1002/mnfr.201900873] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 12/05/2019] [Indexed: 02/06/2023]
Abstract
SCOPE Marine-derived n-3 PUFAs may ameliorate inflammation associated with inflammatory bowel diseases. Plant-derived n-3 PUFAs are thought to be inferior owing to shorter chain lengths. The aim of this study is to compare the impact of plant- and fish-derived PUFAs on murine colitis. METHODS AND RESULTS C57BL/6 mice are fed high fat (36% kcal) diets with either 2.5% w/w sunflower oil (SO), flaxseed oil (FSO), ahiflower oil (AO), or fish oil (FO). After 4 weeks, mice are orogastrically challenged with Citrobacter rodentium (108 CFU) or sham gavaged. Fecal shedding is assayed at 2, 7, 10, and 14 days post infection (PI), and fecal microbiota at 14 days PI. Colonic inflammation and lipid mediators are measured. Supplementation regulates intestinal inflammation with crypt lengths being 66, 73, and 62 ±17 µm shorter (compared to SO) for FSO, AO, and FO respectively, p < 0.01. FSO blunts pathogen shedding at the peak of infection and FSO and AO both enhance fecal microbial diversity. FO attenuates levels of lipoxin and leukotriene B4 while plant oils increase pro-resolving mediator concentrations including D, E, and T-series resolvins. CONCLUSION Plant and fish n-3 PUFAs attenuate colitis-induced inflammation while exhibiting characteristic pro-resolving lipid mediator metabolomes. Plant oils additionally promote microbial diversity.
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Affiliation(s)
- Pekka Määttänen
- Cell Biology Program, Research Institute, Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, M5G 1X8, Canada.,Biology Department, Burman University, Lacombe, Alberta, T4L 2E5, Canada
| | - Eberhard Lurz
- Cell Biology Program, Research Institute, Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, M5G 1X8, Canada.,Division of Gastroenterology, Hepatology and Nutrition, von Haunersches Kinderspital, Ludwig-Maximillians-University LMU, Munich, 80539, Germany
| | - Steven R Botts
- Cell Biology Program, Research Institute, Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, M5G 1X8, Canada
| | - Richard Y Wu
- Cell Biology Program, Research Institute, Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, M5G 1X8, Canada.,Department of Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, M5S 1A1, Canada
| | - Shaiya C Robinson
- Cell Biology Program, Research Institute, Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, M5G 1X8, Canada
| | - C William Yeung
- Cell Biology Program, Research Institute, Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, M5G 1X8, Canada
| | - Romain Colas
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Bo Li
- Division of General and Thoracic Surgery, The Hospital for Sick Children, Toronto, Ontario, M5G 1X8, Canada
| | - Kathene C Johnson-Henry
- Cell Biology Program, Research Institute, Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, M5G 1X8, Canada
| | - Marc E Surette
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick, E1A 3E9, Canada
| | - Jesmond Dalli
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK.,Centre for Inflammation and Therapeutic Innovation, Queen Mary University of London, London, E1 4NS, UK
| | - Philip M Sherman
- Cell Biology Program, Research Institute, Division of Gastroenterology, Hepatology and Nutrition, Hospital for Sick Children, Toronto, Ontario, M5G 1X8, Canada.,Department of Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, M5S 1A1, Canada.,Faculty of Dentistry, University of Toronto, Toronto, Ontario, M5S 1A1, Canada
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