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Khandibharad S, Singh S. Mechanistic study of inhibitory peptides with SHP-1 in hypertonic environment for infection model. Biochim Biophys Acta Gen Subj 2024; 1868:130670. [PMID: 38996989 DOI: 10.1016/j.bbagen.2024.130670] [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: 05/19/2024] [Revised: 07/03/2024] [Accepted: 07/08/2024] [Indexed: 07/14/2024]
Abstract
Cutaneous Leishmaniasis, an infectious disease is globally the most prevalent form of leishmaniasis accounting for approximately 1 million cases every year as per world health organization. Infected individuals develop skin lesion which has been reported to be infiltrated by immune cells and parasite with high sodium accumulation creating hypertonic environment. In our work, we tried to mimic the hypertonic environment in virtual environment to study dynamicity of SHP-1 and NFAT5 along with their interactions through molecular dynamics simulation. We validated the SHP-1 and NFAT5 dynamics in infection and HSD conditions to study the impact of hypertonicity derived NFAT5 mediated response to L.major infection. We also evaluated our therapeutic peptides for their binding to SHP-1 and to form stable complex. Membrane stability with the peptides was analyzed to understand their ability to sustain mammalian membrane. We identified PepA to be a potential candidate to interact with SHP-1. Inhibition of SHP-1 through PepA to discern IL-10 and IL-12 reciprocity may be assessed in future and furnish us with a potential therapeutic molecule. HSD mice exhibited high pro-inflammatory response to L.major infection which resulted in reduced lesion size. Contrary to observations in HSD mice, infection model exhibited low pro-inflammatory response and increased lesion size with high parasite load. Thus, increase in NFAT5 expression and reduced SHP-1 expression may result in disease resolving effect which can be further studied through incorporation of synthetic circuit using PepA to modulate IL-10 and IL-12 reciprocity.
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Affiliation(s)
- Shweta Khandibharad
- Systems Medicine Laboratory, Biotechnology Research and Innovation Council- National Centre for Cell Science, NCCS Complex, Ganeshkhind, SPPU Campus, Pune 411007, INDIA
| | - Shailza Singh
- Systems Medicine Laboratory, Biotechnology Research and Innovation Council- National Centre for Cell Science, NCCS Complex, Ganeshkhind, SPPU Campus, Pune 411007, INDIA.
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2
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Medina-Rodríguez EM, Martínez-Raga J, Sanz Y. Intestinal Barrier, Immunity and Microbiome: Partners in the Depression Crime. Pharmacol Rev 2024; 76:956-969. [PMID: 39084934 DOI: 10.1124/pharmrev.124.001202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/28/2024] [Accepted: 05/29/2024] [Indexed: 08/02/2024] Open
Abstract
Depression is a highly prevalent disorder and a leading cause of disability worldwide. It has a major impact on the affected individual and on society as a whole. Regrettably, current available treatments for this condition are insufficient in many patients. In recent years, the gut microbiome has emerged as a promising alternative target for treating and preventing depressive disorders. However, the microbes that form this ecosystem do not act alone but are part of a complicated network connecting the gut and the brain that influences our mood. Host cells that are in intimate contact with gut microbes, such as the epithelial cells forming the gut barrier and the immune cells in their vicinity, play a key role in the process. These cells continuously shape immune responses to maintain healthy communication between gut microbes and the host. In this article, we review how the interplay among epithelial cells, the immune system, and gut microbes mediates gut-brain communication to influence mood. We also discuss how advances in our knowledge of the mechanisms underlying the gut-brain axis could contribute to addressing depression. SIGNIFICANCE STATEMENT: This review does not aim to systematically describe intestinal microbes that might be beneficial or detrimental for depression. We have adopted a novel point of view by focusing on potential mechanisms underlying the crosstalk between gut microbes and their intestinal environment to control mood. These pathways could be targeted by well defined and individually tailored dietary interventions, microbes, or microbial metabolites to ameliorate depression and decrease its important social and economic impact.
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Affiliation(s)
- Eva M Medina-Rodríguez
- Psychiatry Service, Doctor Peset University Hospital, FISABIO, Valencia, Spain (E.M.M.-R., J.M.-R.); Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Valencia, Spain (E.M.M.-R., Y.S.); and University of Valencia, Valencia, Spain (J.M.-R.)
| | - José Martínez-Raga
- Psychiatry Service, Doctor Peset University Hospital, FISABIO, Valencia, Spain (E.M.M.-R., J.M.-R.); Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Valencia, Spain (E.M.M.-R., Y.S.); and University of Valencia, Valencia, Spain (J.M.-R.)
| | - Yolanda Sanz
- Psychiatry Service, Doctor Peset University Hospital, FISABIO, Valencia, Spain (E.M.M.-R., J.M.-R.); Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), Valencia, Spain (E.M.M.-R., Y.S.); and University of Valencia, Valencia, Spain (J.M.-R.)
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3
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Taylor J, Mercier Y, Olukosi OA, Kim WK, Selvaraj R, Applegate TJ, Shanmugasundaram R, Ball MEE, Kyriazakis I. Supplementing low protein diets with methionine or threonine during mixed Eimeria challenge. Poult Sci 2024; 103:103714. [PMID: 38636202 PMCID: PMC11031750 DOI: 10.1016/j.psj.2024.103714] [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: 01/26/2024] [Revised: 03/26/2024] [Accepted: 03/30/2024] [Indexed: 04/20/2024] Open
Abstract
We investigated the effects of supplementing low protein diets with methionine (Met) or threonine (Thr) during a mixed Eimeria (consisting of E. acervulina, E. maxima and E. tenella) challenge in broilers. All birds were fed the same starter diet (d1-9) and finisher diet (d28-35) which met Cobb 500 nutrient specifications. Birds were allocated to 1 of 4 dietary treatments from d9 to 28: a standard protein diet (19% CP); a low protein diet (16% CP); or the low protein diet supplemented with Met or Thr at 50% above recommendations. On d14, half of the birds were challenged, and half of the birds were unchallenged. From d14 to 28, feed intake was recorded daily and BW every 3 or 4 d. Oocyst excretion was measured daily from d18 to 27. On d21 and 28, 3 birds per pen were euthanized to assess nutrient digestibility, cytokine expression and intestinal histology. During the acute stage of the challenge, challenged birds reduced ADFI and ADG (P < 0.05). In the pre-patent and recovery stages, birds given the 16% CP diets increased ADFI (P < 0.05), meanwhile there were no differences in ADG in these stages (P > 0.05). Nutrient digestibility was reduced in challenged birds in the acute stage (P < 0.05) but tended to be greater than in unchallenged birds during the recovery stage. There was no significant effect of diet on oocyst excretion or intestinal histology (P > 0.05). Interactions were observed between diet and challenge on IL-10 and IL-21 expression in the cecal tonsils during the acute stage of the challenge (P < 0.05), due to reduced IL-10 expression in challenged Thr birds and greater IL-21 expression in challenged Met birds. Supplementation with Thr or Met had limited effects on the outcomes of a mixed Eimeria challenge but provides benefits to the host by enhancing their immune response.
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Affiliation(s)
- James Taylor
- Agri-Food & Biosciences Institute (AFBI), Belfast, BT9 5PX, United Kingdom; Institute for Global Food Security, Queen's University, Belfast, BT9 5DL, United Kingdom.
| | | | - Oluyinka A Olukosi
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - Woo K Kim
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - Ramesh Selvaraj
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - Todd J Applegate
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - Revathi Shanmugasundaram
- Toxicology and Mycotoxin Research Unit, USDA-ARS, US National Poultry Research Centre, Athens, GA 30605, USA
| | - M Elizabeth E Ball
- Agri-Food & Biosciences Institute (AFBI), Belfast, BT9 5PX, United Kingdom
| | - Ilias Kyriazakis
- Institute for Global Food Security, Queen's University, Belfast, BT9 5DL, United Kingdom
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4
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Zhang X, Zhang Z, Zhao Y, Jin L, Tai Y, Tang Y, Geng S, Zhang H, Zhai Y, Yang Y, Pan P, He P, Fang S, Sun C, Chen Y, Zhou M, Liu L, Wang H, Xu L, Zhang T, Hua J, Wang H, Zhang L. Sodium chloride promotes macrophage pyroptosis and aggravates rheumatoid arthritis by activating SGK1 through GABA receptors Slc6a12. Int J Biol Sci 2024; 20:2922-2942. [PMID: 38904021 PMCID: PMC11186373 DOI: 10.7150/ijbs.93242] [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: 12/14/2023] [Accepted: 05/07/2024] [Indexed: 06/22/2024] Open
Abstract
Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease characterized by synovial inflammation and the production of autoantibodies. Previous studies have indicated an association between high-salt diets (HSD) and an increased risk of RA, yet the underlying mechanisms remain unclear. Macrophage pyroptosis, a pro-inflammatory form of cell death, plays a pivotal role in RA. In this study, we demonstrate that HSD exacerbates the severity of arthritis in collagen-induced arthritis (CIA) mice, correlating with macrophage infiltration and inflammatory lesions. Given the significant alterations observed in macrophages from CIA mice subjected to HSD, we specifically investigate the impact of HSD on macrophage responses in the inflammatory milieu of RA. In our in vitro experiments, pretreatment with NaCl enhances LPS-induced pyroptosis in RAW.264.7 and THP-1 cells through the p38 MAPK/NF-κB signaling pathway. Subsequent experiments reveal that Slc6a12 inhibitors and SGK1 silencing inhibit sodium-induced activation of macrophage pyroptosis and the p38 MAPK/NF-κB signaling pathway, whereas overexpression of the SGK1 gene counteracts the effect of sodium on macrophages. In conclusion, our findings verified that high salt intake promotes the progression of RA and provided a detailed elucidation of the activation of macrophage pyroptosis induced by sodium transportation through the Slc6a12 channel.
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Affiliation(s)
- Xianzheng Zhang
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Ziwei Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Yuchen Zhao
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Lin Jin
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Yu Tai
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Yujing Tang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Shuo Geng
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Han Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Yufang Zhai
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Yining Yang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Pin Pan
- Department of orthopedics, The Second People's Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, Anhui 230011, China
| | - Peng He
- Department of Orthopedics, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Shuqi Fang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Chenlong Sun
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Yu Chen
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Mengqi Zhou
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Lianghu Liu
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Han Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Li Xu
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Tianjing Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Jinghan Hua
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
| | - Hua Wang
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Lingling Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China; Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, China; Anti-inflammatory Immune Drugs Collaborative Innovation Center, Anhui Province, Hefei, China
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5
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Miyauchi H, Geisberger S, Luft FC, Wilck N, Stegbauer J, Wiig H, Dechend R, Jantsch J, Kleinewietfeld M, Kempa S, Müller DN. Sodium as an Important Regulator of Immunometabolism. Hypertension 2024; 81:426-435. [PMID: 37675565 PMCID: PMC10863658 DOI: 10.1161/hypertensionaha.123.19489] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Salt sensitivity concerns blood pressure alterations after a change in salt intake (sodium chloride). The heart is a pump, and vessels are tubes; sodium can affect both. A high salt intake increases cardiac output, promotes vascular dysfunction and capillary rarefaction, and chronically leads to increased systemic vascular resistance. More recent findings suggest that sodium also acts as an important second messenger regulating energy metabolism and cellular functions. Besides endothelial cells and fibroblasts, sodium also affects innate and adaptive immunometabolism, immune cell function, and influences certain microbes and microbiota-derived metabolites. We propose the idea that the definition of salt sensitivity should be expanded beyond high blood pressure to cellular and molecular salt sensitivity.
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Affiliation(s)
- Hidetaka Miyauchi
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (H.M., S.G., F.C.L., N.W., R.D., S.K., D.N.M.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Experimental and Clinical Research Center, Germany (H.M., F.C.L., N.W., R.D., D.N.M.)
- Experimental and Clinical Research Center, a joint cooperation of Max Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Germany (H.M., F.C.L., N.W., R.D., D.N.M.)
- German Centre for Cardiovascular Research, Partner Site Berlin, Germany (H.M., N.W., R.D., D.N.M.)
| | - Sabrina Geisberger
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (H.M., S.G., F.C.L., N.W., R.D., S.K., D.N.M.)
| | - Friedrich C. Luft
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (H.M., S.G., F.C.L., N.W., R.D., S.K., D.N.M.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Experimental and Clinical Research Center, Germany (H.M., F.C.L., N.W., R.D., D.N.M.)
- Experimental and Clinical Research Center, a joint cooperation of Max Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Germany (H.M., F.C.L., N.W., R.D., D.N.M.)
| | - Nicola Wilck
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (H.M., S.G., F.C.L., N.W., R.D., S.K., D.N.M.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Experimental and Clinical Research Center, Germany (H.M., F.C.L., N.W., R.D., D.N.M.)
- Experimental and Clinical Research Center, a joint cooperation of Max Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Germany (H.M., F.C.L., N.W., R.D., D.N.M.)
- German Centre for Cardiovascular Research, Partner Site Berlin, Germany (H.M., N.W., R.D., D.N.M.)
| | - Johannes Stegbauer
- Department of Nephrology, Faculty of Medicine, University Hospital, Heinrich-Heine-University, Düsseldorf, Germany (J.S.)
- CARID, Cardiovascular Research Institute Düsseldorf, Medical Faculty and University Hospital, Düsseldorf, Germany (J.S.)
| | - Helge Wiig
- Department of Biomedicine, University of Bergen, Norway (H.W.)
| | - Ralf Dechend
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (H.M., S.G., F.C.L., N.W., R.D., S.K., D.N.M.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Experimental and Clinical Research Center, Germany (H.M., F.C.L., N.W., R.D., D.N.M.)
- Experimental and Clinical Research Center, a joint cooperation of Max Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Germany (H.M., F.C.L., N.W., R.D., D.N.M.)
- German Centre for Cardiovascular Research, Partner Site Berlin, Germany (H.M., N.W., R.D., D.N.M.)
- HELIOS Clinic, Department of Cardiology and Nephrology, Berlin, Germany (R.D.)
| | - Jonathan Jantsch
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg and University of Regensburg, Germany (J.J.)
- Institute for Medical Microbiology, Immunology, and Hygiene, and Center for Molecular Medicine Cologne, University Hospital Cologne and Faculty of Medicine, University of Cologne, Germany (J.J.)
| | - Markus Kleinewietfeld
- VIB Laboratory of Translational Immunomodulation, VIB Center for Inflammation Research, Hasselt University, Diepenbeek, Belgium (M.K.)
- Department of Immunology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium (M.K.)
- University Multiple Sclerosis Center, Hasselt University/Campus Diepenbeek, Belgium (M.K.)
| | - Stefan Kempa
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (H.M., S.G., F.C.L., N.W., R.D., S.K., D.N.M.)
| | - Dominik N. Müller
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany (H.M., S.G., F.C.L., N.W., R.D., S.K., D.N.M.)
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Experimental and Clinical Research Center, Germany (H.M., F.C.L., N.W., R.D., D.N.M.)
- Experimental and Clinical Research Center, a joint cooperation of Max Delbrück Center for Molecular Medicine and Charité-Universitätsmedizin Berlin, Germany (H.M., F.C.L., N.W., R.D., D.N.M.)
- German Centre for Cardiovascular Research, Partner Site Berlin, Germany (H.M., N.W., R.D., D.N.M.)
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6
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Lazarević M, Stegnjaić G, Jevtić B, Despotović S, Ignjatović Đ, Stanisavljević S, Nikolovski N, Momčilović M, Fraser GL, Dimitrijević M, Miljković Đ. Increased regulatory activity of intestinal innate lymphoid cells type 3 (ILC3) prevents experimental autoimmune encephalomyelitis severity. J Neuroinflammation 2024; 21:26. [PMID: 38238790 PMCID: PMC10795263 DOI: 10.1186/s12974-024-03017-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/09/2024] [Indexed: 01/22/2024] Open
Abstract
Experimental autoimmune encephalomyelitis (EAE) induced in inbred rodents, i.e., genetically identical animals kept under identical environmental conditions, shows variable clinical outcomes. We investigated such variations of EAE in Dark Agouti rats immunized with spinal cord homogenate and identified four groups: lethal, severe, moderate, and mild, at day 28 post immunization. Higher numbers of CD4+ T cells, helper T cells type 1 (Th1) and 17 (Th17) in particular, were detected in the spinal cord of the severe group in comparison with the moderate group. In addition, increased proportion of Th1 and Th17 cells, and heightened levels of interferon (IFN)-γ and interleukin (IL)-6 were detected in the small intestine lamina propria of the severe group. A selective agonist of free fatty acid receptor type 2 (Ffar2) applied orally in the inductive phase of EAE shifted the distribution of the disease outcomes towards milder forms. This effect was paralleled with potentiation of intestinal innate lymphoid cells type 3 (ILC3) regulatory properties, and diminished Th1 and Th17 cell response in the lymph nodes draining the site of immunization. Our results suggest that different clinical outcomes in DA rats are under determinative influence of intestinal ILC3 activity during the inductive phase of EAE.
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Affiliation(s)
- Milica Lazarević
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142, 11000, Belgrade, Serbia
| | - Goran Stegnjaić
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142, 11000, Belgrade, Serbia
| | - Bojan Jevtić
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142, 11000, Belgrade, Serbia
| | - Sanja Despotović
- Institute of Histology and Embryology, School of Medicine, University of Belgrade, Dr Subotića 9, 11000, Belgrade, Serbia
| | - Đurđica Ignjatović
- Department of Biochemistry, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142, 11000, Belgrade, Serbia
| | - Suzana Stanisavljević
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142, 11000, Belgrade, Serbia
| | - Neda Nikolovski
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142, 11000, Belgrade, Serbia
| | - Miljana Momčilović
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142, 11000, Belgrade, Serbia
| | - Graeme L Fraser
- Epics Therapeutics S.A, 47 Rue Adrienne Bolland, 6041, Gosselies, Belgium
| | - Mirjana Dimitrijević
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142, 11000, Belgrade, Serbia
| | - Đorđe Miljković
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Despota Stefana 142, 11000, Belgrade, Serbia.
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7
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Koprivica I, Stanisavljević S, Mićanović D, Jevtić B, Stojanović I, Miljković Đ. ILC3: a case of conflicted identity. Front Immunol 2023; 14:1271699. [PMID: 37915588 PMCID: PMC10616800 DOI: 10.3389/fimmu.2023.1271699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/02/2023] [Indexed: 11/03/2023] Open
Abstract
Innate lymphoid cells type 3 (ILC3s) are the first line sentinels at the mucous tissues, where they contribute to the homeostatic immune response in a major way. Also, they have been increasingly appreciated as important modulators of chronic inflammatory and autoimmune responses, both locally and systemically. The proper identification of ILC3 is of utmost importance for meaningful studies on their role in immunity. Flow cytometry is the method of choice for the detection and characterization of ILC3. However, the analysis of ILC3-related papers shows inconsistency in ILC3 phenotypic definition, as different inclusion and exclusion markers are used for their identification. Here, we present these discrepancies in the phenotypic characterization of human and mouse ILC3s. We discuss the pros and cons of using various markers for ILC3 identification. Furthermore, we consider the possibilities for the efficient isolation and propagation of ILC3 from different organs and tissues for in-vitro and in-vivo studies. This paper calls upon uniformity in ILC3 definition, isolation, and propagation for the increased possibility of confluent interpretation of ILC3's role in immunity.
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Affiliation(s)
| | | | | | | | | | - Đorđe Miljković
- Department of Immunology, Institute for Biological Research “Siniša Stanković” - National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
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8
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Bian X, Xue H, Jing D, Wang Y, Zhou G, Zhu F. Role of Serum/Glucocorticoid-Regulated Kinase 1 (SGK1) in Immune and Inflammatory Diseases. Inflammation 2023; 46:1612-1625. [PMID: 37353719 DOI: 10.1007/s10753-023-01857-8] [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: 04/29/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 06/25/2023]
Abstract
Serum/glucocorticoid-regulated kinase 1 (SGK1), a member of the serine/threonine protein kinase gene family, is primarily regulated by serum and glucocorticoids. SGK1 is involved in the development of tumors and fibrotic diseases. However, relatively little research has been conducted on their role in immune and inflammatory diseases. SGK1 may act as a pivotal immune regulatory gene by modulating immune cells (e.g., T cells, macrophages, dendritic cells, and neutrophils) and functions and is involved in the pathogenesis of some immune and inflammatory diseases, such as inflammatory bowel disease, multiple sclerosis, allergic diseases, sepsis, and major depressive disorder. This review aims to provide an overview of the latest research focusing on the immune and inflammatory regulatory roles of SGK1 and provide new insights into diagnostic and therapeutic approaches for immune and inflammatory diseases.
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Affiliation(s)
- Xixi Bian
- Clinical Medical College of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Honglu Xue
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Dehuai Jing
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Yan Wang
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China
| | - Guangxi Zhou
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China.
| | - Fengqin Zhu
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, Shandong, China.
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9
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Qi J, Wang J, Zhang Y, Long H, Dong L, Wan P, Zuo Z, Chen W, Song Z. High-Salt-Diet (HSD) aggravates the progression of Inflammatory Bowel Disease (IBD) via regulating epithelial necroptosis. MOLECULAR BIOMEDICINE 2023; 4:28. [PMID: 37691056 PMCID: PMC10493205 DOI: 10.1186/s43556-023-00135-1] [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: 12/29/2022] [Accepted: 06/14/2023] [Indexed: 09/12/2023] Open
Abstract
Due to its unclear etiology, there is no specific medicine to cure the recurrent and incurable inflammatory bowel disease (IBD). Unhealthy dietary habits unconsciously contributed to the progression of IBD, for example a High-Salt-Diet (HSD) is the most neglected and frequently adopted habit. However, the molecular mechanism of how HSD aggravates the progression of IBD has yet to remain uncovered. Herein, we focus on the hypothesis that necroptosis pathway may be involved in the process of IBD exacerbated by HSD. To this end, different gene expression (DEGs) profiles of human epithelia under hypertonic culture conditions were applied to screen candidate pathways. What's more, gene expression manipulation, immune microenvironment detection, RIPK3/MLKL gene knockout (KO), and wild-type (WT) mice were carried out to research the promotion of IBD progression under treatments of high salt intake. Based on our present results, gene expression profiles in human normal colon epithelia cell NCM460 were significantly changed under salt- or sucrose-induced hypertonic culture conditions. RIPK3 was significantly up-regulated under both conditions. Furthermore, mice colon epithelia cell CT26 growth was inhibited in a time- and dose-dependent manner by extra NaCl incubation. Autophagy, and Necroptosis pathways were activated and enhanced by LPS pretreatment. HSD significantly exacerbated DSS-induced IBD symptoms in vivo in a dose-dependent manner. Moreover, RIPK3-/- and MLKL-/- mice presented severe IBD symptoms in vivo. Overall, the results demonstrated that HSD aggravated the IBD progression via necroptosis activation, providing novel strategies and promising targets for the clinical treatment of IBD.
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Affiliation(s)
- Jialong Qi
- Department of Gastroenterology, Yunnan Digestive Endoscopy Clinical Medical Center, The First People's Hospital of Yunnan Province, Kunming, 650032, P.R. China
- Yunnan Provincial Key Laboratory of Clinical Virology, The First People's Hospital of Yunnan Province, Kunming, 650032, P.R. China
| | - Jinli Wang
- Department of Gastroenterology, Yunnan Digestive Endoscopy Clinical Medical Center, The First People's Hospital of Yunnan Province, Kunming, 650032, P.R. China
| | - Ying Zhang
- Department of Gastroenterology, Yunnan Digestive Endoscopy Clinical Medical Center, The First People's Hospital of Yunnan Province, Kunming, 650032, P.R. China
- School of Medicine, Kunming University of Science and Technology, Affiliated By The First People's Hospital of Yunnan Province, Kunming, 650504, Yunnan, P.R. China
| | - Huan Long
- Department of Gastroenterology, Yunnan Digestive Endoscopy Clinical Medical Center, The First People's Hospital of Yunnan Province, Kunming, 650032, P.R. China
- School of Medicine, Kunming University of Science and Technology, Affiliated By The First People's Hospital of Yunnan Province, Kunming, 650504, Yunnan, P.R. China
| | - Liang Dong
- Department of Gastroenterology, Yunnan Digestive Endoscopy Clinical Medical Center, The First People's Hospital of Yunnan Province, Kunming, 650032, P.R. China
- School of Medicine, Kunming University of Science and Technology, Affiliated By The First People's Hospital of Yunnan Province, Kunming, 650504, Yunnan, P.R. China
| | - Ping Wan
- Department of Gastroenterology, Yunnan Digestive Endoscopy Clinical Medical Center, The First People's Hospital of Yunnan Province, Kunming, 650032, P.R. China
- School of Medicine, Kunming University of Science and Technology, Affiliated By The First People's Hospital of Yunnan Province, Kunming, 650504, Yunnan, P.R. China
| | - Zan Zuo
- Department of Gastroenterology, Yunnan Digestive Endoscopy Clinical Medical Center, The First People's Hospital of Yunnan Province, Kunming, 650032, P.R. China.
| | - Wenjie Chen
- State Key Laboratory of Respiratory Disease, Guangdong-Hongkong-Macao Joint Laboratory of Respiratory Infectious Disease, Guangzhou Medical University, Guangzhou, 510182, P.R. China.
- Sydney Vital Translational Cancer Research Centre, Westbourne St, Sydney, NSW, 2065, Australia.
| | - Zhengji Song
- Department of Gastroenterology, Yunnan Digestive Endoscopy Clinical Medical Center, The First People's Hospital of Yunnan Province, Kunming, 650032, P.R. China.
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10
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de Araujo ACVSC, de Queiroz NMGP, Marinho FV, Oliveira SC. Bacillus Calmette-Guérin-Trained Macrophages Elicit a Protective Inflammatory Response against the Pathogenic Bacteria Brucella abortus. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:791-803. [PMID: 37477668 PMCID: PMC10530434 DOI: 10.4049/jimmunol.2200642] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 06/30/2023] [Indexed: 07/22/2023]
Abstract
The bacillus Calmette-Guérin (BCG) can elicit enhanced innate immune responses against a wide range of infections, known as trained immunity. Brucella abortus is the causative agent of brucellosis, a debilitating disease that affects humans and animals. In this study, we demonstrate that C57BL/6 mouse bone marrow-derived macrophages under BCG training enhance inflammatory responses against B. abortus. BCG-trained macrophages showed increased MHC class II and CD40 expression on the cell surface and higher IL-6, IL-12, and IL-1β production. The increase in IL-1β secretion was accompanied by enhanced activation of canonical and noncanonical inflammasome platforms. We observed elevated caspase-11 expression and caspase-1 processing in BCG-trained macrophages in response to B. abortus compared with untrained cells. In addition, these BCG-trained cells showed higher NLRP3 expression after B. abortus infection. From a metabolic point of view, signaling through the Akt/mammalian target of rapamycin/S6 kinase pathway was also enhanced. In addition, BCG training resulted in higher inducible NO synthase expression and nitrite production, culminating in an improved macrophage-killing capacity against intracellular B. abortus. In vivo, we monitored a significant reduction in the bacterial burden in organs from BCG-trained C57BL/6 mice when compared with the untrained group. In addition, previous BCG immunization of RAG-1-deficient mice partially protects against Brucella infection, suggesting the important role of the innate immune compartment in this scenario. Furthermore, naive recipient mice that received BM transfer from BCG-trained donors showed greater resistance to B. abortus when compared with their untrained counterparts. These results demonstrate that BCG-induced trained immunity in mice results in better control of intracellular B. abortus in vivo and in vitro.
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Affiliation(s)
- Ana Carolina V. S. C. de Araujo
- Departamento de Genética, Ecologia e Evolução, Programa de Pós-Graduação em Genética, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Departamento de Bioquímica e Imunologia, Programa de Pós-Graduação em Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Nina M. G. P. de Queiroz
- Departamento de Bioquímica e Imunologia, Programa de Pós-Graduação em Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Fábio V. Marinho
- Departamento de Bioquímica e Imunologia, Programa de Pós-Graduação em Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Sergio C. Oliveira
- Departamento de Genética, Ecologia e Evolução, Programa de Pós-Graduação em Genética, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Departamento de Bioquímica e Imunologia, Programa de Pós-Graduação em Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
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11
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Olive oil ameliorates allergic response in murine ovalbumin-induced food allergy by promoting intestinal mucosal immunity. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Horowitz A, Chanez-Paredes SD, Haest X, Turner JR. Paracellular permeability and tight junction regulation in gut health and disease. Nat Rev Gastroenterol Hepatol 2023:10.1038/s41575-023-00766-3. [PMID: 37186118 PMCID: PMC10127193 DOI: 10.1038/s41575-023-00766-3] [Citation(s) in RCA: 114] [Impact Index Per Article: 114.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/03/2023] [Indexed: 05/17/2023]
Abstract
Epithelial tight junctions define the paracellular permeability of the intestinal barrier. Molecules can cross the tight junctions via two distinct size-selective and charge-selective paracellular pathways: the pore pathway and the leak pathway. These can be distinguished by their selectivities and differential regulation by immune cells. However, permeability increases measured in most studies are secondary to epithelial damage, which allows non-selective flux via the unrestricted pathway. Restoration of increased unrestricted pathway permeability requires mucosal healing. By contrast, tight junction barrier loss can be reversed by targeted interventions. Specific approaches are needed to restore pore pathway or leak pathway permeability increases. Recent studies have used preclinical disease models to demonstrate the potential of pore pathway or leak pathway barrier restoration in disease. In this Review, we focus on the two paracellular flux pathways that are dependent on the tight junction. We discuss the latest evidence that highlights tight junction components, structures and regulatory mechanisms, their impact on gut health and disease, and opportunities for therapeutic intervention.
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Affiliation(s)
- Arie Horowitz
- UNIROUEN, INSERM U1245, Normandy Centre for Genomic and Personalized Medicine, Normandie University, Rouen, France
| | - Sandra D Chanez-Paredes
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xenia Haest
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jerrold R Turner
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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13
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Roe K. Treatment alternatives for multidrug-resistant fungal pathogens. Drug Discov Today 2023; 28:103596. [PMID: 37086779 DOI: 10.1016/j.drudis.2023.103596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/13/2023] [Accepted: 04/17/2023] [Indexed: 04/24/2023]
Abstract
Several fungal pathogens are becoming resistant to conventional fungal infection treatments, and some fungal pathogens have become multidrug resistant. Alternative treatments include fungal vaccines, natural or synthetic monoclonal antibody (mAb) injections, or potentially natural or synthetic mAbs produced in vivo by packaged mRNA. Specifically synthesized proteins can mask distinctive pathogenic fungal surface proteins and target pathogenic fungal proteins to stop fungal infections. Treatments could use direct injections or injections of packaged mRNA with instructions for patient synthesis of either the natural or synthetic mAbs. These alternative treatments offer potentially significant advantages compared with existing treatments for fungal pathogens. Teaser: New fungal pathogen treatment approaches can use natural or synthetic monoclonal antibodies to activate immune cells and treat specific fungal infections that are now multidrug resistant to conventional antifungal drugs.
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14
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Kolobarić N, Mihalj M, Kozina N, Matić A, Mihaljević Z, Jukić I, Drenjančević I. Tff3-/- Knock-Out Mice with Altered Lipid Metabolism Exhibit a Lower Level of Inflammation following the Dietary Intake of Sodium Chloride for One Week. Int J Mol Sci 2023; 24:ijms24087315. [PMID: 37108475 PMCID: PMC10138311 DOI: 10.3390/ijms24087315] [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: 03/13/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
A high salt intake causes hemodynamic changes and promotes immune response through cell activation and cytokine production, leading to pro-inflammatory conditions. Transgenic Tff3-/- knock-out mice (TFF3ko) (n = 20) and wild-type mice (WT) (n = 20) were each divided into the (1) low-salt (LS) group and (2) high-salt (HS) group. Ten-week-old animals were fed with standard rodent chow (0.4% NaCl) (LS) or food containing 4% NaCl (HS) for one week (7 days). Inflammatory parameters from the sera were measured by Luminex assay. The integrin expression and rates of T cell subsets of interest from the peripheral blood leukocytes (PBLs) and mesenteric lymph nodes (MLNs) were measured using flow cytometry. There was a significant increase in high-sensitivity C reactive protein (hsCRP) only in the WT mice following the HS diet, while there were no significant changes in the serum levels of IFN-γ, TNF-α, IL-2, IL-4, or IL-6 as a response to treatment in either study groups. The rates of CD4+CD25+ T cells from MLNs decreased, while CD3+γδTCR+ from peripheral blood increased following the HS diet only in TFF3ko. γδTCR expressing T cell rates decreased in WT following the HS diet. The CD49d/VLA-4 expression decreased in the peripheral blood leukocytes in both groups following the HS diet. CD11a/LFA-1 expression significantly increased only in the peripheral blood Ly6C-CD11ahigh monocytes in WT mice following salt loading. In conclusion, salt-loading in knock-out mice caused a lower level of inflammatory response compared with their control WT mice due to gene depletion.
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Grants
- #IP-2014-09-6380/V-ELI Athero, PI I. Drenjančević Croatian Science Foundation
- VIF-2018-MEFOS-09-1509 (The influence of increased NaCl values on endothelial function in model TFF-/- mice and HAEC cell cultures) Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, Croatia
- VIF-2019-MEFOS (The effect of increased NaCl values on the mechanisms of vascular reactivity in model of Tff3-/- mice and HAEC cell cultures, PI I. Drenjančević) Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, Croatia
- VIF-2020-MEFOS (The effect of increased NaCl values on the mechanisms of vascular reactivity in model of Tff3-/- mice, Sprague-Dawley rats and HAEC cell cultures, PI I. Drenjančević) Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, Croatia
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Affiliation(s)
- Nikolina Kolobarić
- Department of Physiology and Immunology, Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia
- Scientific Center of Excellence for Personalized Health Care, J. J. Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
| | - Martina Mihalj
- Department of Physiology and Immunology, Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia
- Scientific Center of Excellence for Personalized Health Care, J. J. Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
- Department of Dermatology and Venereology, Osijek University Hospital, J. Huttlera 4, 31000 Osijek, Croatia
| | - Nataša Kozina
- Department of Physiology and Immunology, Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia
- Scientific Center of Excellence for Personalized Health Care, J. J. Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
| | - Anita Matić
- Department of Physiology and Immunology, Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia
- Scientific Center of Excellence for Personalized Health Care, J. J. Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
| | - Zrinka Mihaljević
- Department of Physiology and Immunology, Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia
- Scientific Center of Excellence for Personalized Health Care, J. J. Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
| | - Ivana Jukić
- Department of Physiology and Immunology, Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia
- Scientific Center of Excellence for Personalized Health Care, J. J. Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
| | - Ines Drenjančević
- Department of Physiology and Immunology, Faculty of Medicine Osijek, J. J. Strossmayer University of Osijek, J. Huttlera 4, 31000 Osijek, Croatia
- Scientific Center of Excellence for Personalized Health Care, J. J. Strossmayer University of Osijek, Trg Svetog Trojstva 3, 31000 Osijek, Croatia
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15
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Chen X, Zhang Y, Ding Q, He Y, Li H. Role of IL-17A in different stages of ischemic stroke. Int Immunopharmacol 2023; 117:109926. [PMID: 37012860 DOI: 10.1016/j.intimp.2023.109926] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/01/2023] [Accepted: 02/18/2023] [Indexed: 03/16/2023]
Abstract
Interleukin-17A (IL-17A) plays an important role in the progression of ischemic stroke. IL-17A mediates the endothelial inflammatory response, promotes water and sodium retention, and changes the electrophysiological structure of the atrium, accelerating the progression of ischemic stroke risk factors such as atherosclerotic plaques, hypertension, and atrial fibrillation. In the acute phase of ischemic stroke, IL-17A mediates neuronal injury through neutrophil chemotaxis to the site of injury, the induction of neuronal apoptosis, and activation of the calpain-TRPC-6 (transient receptor potential channel-6) pathway. During ischemic stroke recovery, IL-17A, which is mainly derived from reactive astrocytes, promotes and maintains the survival of neural precursor cells (NPCs) in the subventricular zone (SVZ), neuronal differentiation, and synapse formation and participates in the repair of neurological function. Therapies targeting IL-17A-associated inflammatory signaling pathways can reduce the risk of ischemic stroke and neuronal damage and are a new therapeutic strategy for ischemic stroke and its risk factors. In this paper, we will briefly discuss the pathophysiological role of IL-17A in ischemic stroke risk factors, acute and chronic inflammatory responses, and the potential therapeutic value of targeting IL-17A.
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Affiliation(s)
- Xiuping Chen
- Department of Rehabilitation, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Yi Zhang
- Department of General Medicine, Jiangkou Town Center Hospital, Ganxian 341100, China
| | - Qian Ding
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin Institute of Digestive Disease, Tianjin 300052, China
| | - Yanru He
- Medical Insurance Department, Mingya Insurance Brokers Co., Ltd., Beijing 100020, China
| | - Hui Li
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
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16
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Niiranen T, Erlund I, Jalkanen S, Jula A, Salmi M. Effects of altered salt intake and diet on cytokines in humans: A 20-week randomized cross-over intervention study. Eur J Immunol 2023; 53:e2250074. [PMID: 36330564 PMCID: PMC10100453 DOI: 10.1002/eji.202250074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/09/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022]
Abstract
High sodium concentration alters leukocyte activation, and in particular T-helper (Th) lymphocyte polarization, and drives the development of autoimmune diseases in mouse studies. Similar results have been obtained with human leukocytes under in vitro settings and in few observational studies. Therefore, salt has been implicated as a risk factor for autoimmune diseases. Here, we examined whether physiologically relevant changes in salt intake or diet alter cytokine concentrations. In a 20-wk double-blinded, placebo-controlled study 106 participants were randomized to Habitual and Healthy Nordic diets, and further to Usual Sodium and Reduced Sodium intake groups using a cross-over setup. Plasma concentrations of 45 cytokines were measured at three different time-points using a multiplex assay. Repeated analyses of covariance revealed that high salt ingestion (or changes in the diet) did not induce significant changes in any of the signature cytokines controlling Th1, Th2 or Th17 polarization. Several other pro-inflammatory interleukins, chemokines and growth factors were also unaffected by the level of salt intake or changes in the diet. We conclude that in humans clinically relevant changes in salt intake or diet do not have reflections on the systemic concentrations of pro-inflammatory cytokines in vivo.
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Affiliation(s)
- Teemu Niiranen
- Department of Medicine, Turku University Hospital and University of Turku, Turku, Finland.,Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Iris Erlund
- Department of Government Services, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Sirpa Jalkanen
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland.,InFLAMES Research Flagship Center, University of Turku, Turku, Finland
| | - Antti Jula
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Marko Salmi
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland.,InFLAMES Research Flagship Center, University of Turku, Turku, Finland
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17
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Meissner A, Garcia-Serrano AM, Vanherle L, Rafiee Z, Don-Doncow N, Skoug C, Larsson S, Gottschalk M, Magnusson M, Duarte JMN. Alterations to Cerebral Perfusion, Metabolite Profiles, and Neuronal Morphology in the Hippocampus and Cortex of Male and Female Mice during Chronic Exposure to a High-Salt Diet. Int J Mol Sci 2022; 24:ijms24010300. [PMID: 36613742 PMCID: PMC9820346 DOI: 10.3390/ijms24010300] [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: 12/05/2022] [Revised: 12/17/2022] [Accepted: 12/21/2022] [Indexed: 12/28/2022] Open
Abstract
Excess dietary salt reduces resting cerebral blood flow (CBF) and vascular reactivity, which can limit the fueling of neuronal metabolism. It is hitherto unknown whether metabolic derangements induced by high-salt-diet (HSD) exposure during adulthood are reversed by reducing salt intake. In this study, male and female mice were fed an HSD from 9 to 16 months of age, followed by a normal-salt diet (ND) thereafter until 23 months of age. Controls were continuously fed either ND or HSD. CBF and metabolite profiles were determined longitudinally by arterial spin labeling magnetic resonance imaging and magnetic resonance spectroscopy, respectively. HSD reduced cortical and hippocampal CBF, which recovered after dietary salt normalization, and affected hippocampal but not cortical metabolite profiles. Compared to ND, HSD increased hippocampal glutamine and phosphocreatine levels and decreased creatine and choline levels. Dietary reversal only allowed recovery of glutamine levels. Histology analyses revealed that HSD reduced the dendritic arborization and spine density of cortical and hippocampal neurons, which were not recovered after dietary salt normalization. We conclude that sustained HSD exposure throughout adulthood causes permanent structural and metabolic alterations to the mouse brain that are not fully normalized by lowering dietary salt during aging.
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Affiliation(s)
- Anja Meissner
- Department of Experimental Medical Science, Faculty of Medicine, Lund University, 22184 Lund, Sweden
- Wallenberg Centre for Molecular Medicine, Lund University, 22184 Lund, Sweden
- Department of Physiology, Institute of Theoretical Medicine, Medical Faculty, University of Augsburg, 86159 Augsburg, Germany
| | - Alba M. Garcia-Serrano
- Department of Experimental Medical Science, Faculty of Medicine, Lund University, 22184 Lund, Sweden
- Wallenberg Centre for Molecular Medicine, Lund University, 22184 Lund, Sweden
| | - Lotte Vanherle
- Department of Experimental Medical Science, Faculty of Medicine, Lund University, 22184 Lund, Sweden
- Wallenberg Centre for Molecular Medicine, Lund University, 22184 Lund, Sweden
| | - Zeinab Rafiee
- Department of Experimental Medical Science, Faculty of Medicine, Lund University, 22184 Lund, Sweden
- Wallenberg Centre for Molecular Medicine, Lund University, 22184 Lund, Sweden
| | - Nicholas Don-Doncow
- Department of Experimental Medical Science, Faculty of Medicine, Lund University, 22184 Lund, Sweden
- Wallenberg Centre for Molecular Medicine, Lund University, 22184 Lund, Sweden
| | - Cecilia Skoug
- Department of Experimental Medical Science, Faculty of Medicine, Lund University, 22184 Lund, Sweden
- Wallenberg Centre for Molecular Medicine, Lund University, 22184 Lund, Sweden
| | - Sara Larsson
- Department of Experimental Medical Science, Faculty of Medicine, Lund University, 22184 Lund, Sweden
- Wallenberg Centre for Molecular Medicine, Lund University, 22184 Lund, Sweden
| | | | - Martin Magnusson
- Wallenberg Centre for Molecular Medicine, Lund University, 22184 Lund, Sweden
- Department of Clinical Sciences, Lund University, 20502 Malmö, Sweden
- Department of Cardiology, Skåne University Hospital, 20502 Malmö, Sweden
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom 2520, South Africa
| | - João M. N. Duarte
- Department of Experimental Medical Science, Faculty of Medicine, Lund University, 22184 Lund, Sweden
- Wallenberg Centre for Molecular Medicine, Lund University, 22184 Lund, Sweden
- Correspondence:
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18
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Chen S, Ren Z, Huo Y, Yang W, Peng L, Lv H, Nie L, Wei H, Wan C. Targeting the gut microbiota to investigate the mechanism of Lactiplantibacillus plantarum 1201 in negating colitis aggravated by a high-salt diet. Food Res Int 2022; 162:112010. [DOI: 10.1016/j.foodres.2022.112010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/29/2022]
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Amoxicillin impact on pathophysiology induced by short term high salt diet in mice. Sci Rep 2022; 12:19351. [PMID: 36369512 PMCID: PMC9652318 DOI: 10.1038/s41598-022-21270-9] [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: 03/20/2022] [Accepted: 09/26/2022] [Indexed: 11/13/2022] Open
Abstract
Current evidence emerging from both human and animal models confirms that high-salt diet consumption over a period modulates the gut ecology and subsequently accelerates the development of the pathophysiology of many metabolic diseases. The knowledge of short-term intake of a high-salt diet (HSD) on gut microbiota and their role in the progression of metabolic pathogenesis and the consequence of a typical course of common antibiotics in this condition has yet not been investigated. The present study elicited this knowledge gap by studying how the gut microbiota profile changes in mice receiving HSD for a short period followed by Amoxicillin treatment on these mice in the last week to mimic a typical treatment course of antibiotics. In this study, we provided a standard chow diet (CD) and HSD for 3 weeks, and a subset of these mice on both diets received antibiotic therapy with Amoxicillin in the 3rd week. We measured the body weight of mice for 3 weeks. After 21 days, all animals were euthanised and subjected to a thorough examination for haemato-biochemical, histopathological, and 16S rRNA sequencing, followed by bioinformatics analysis to determine any changes in gut microbiota ecology. HSD exposure in mice for short duration even leads to a significant difference in the gut ecology with enrichment of specific gut microbiota crucially linked to developing the pathophysiological features of metabolic disease-related inflammation. In addition, HSD treatment showed a negative impact on haemato-biochemical parameters. However, Amoxicillin treatment in HSD-fed mice restored the blood-biochemical markers near to control values and reshaped gut microbiota known for improving the pathophysiological attributes of metabolic disease related inflammation. This study also observed minimal and insignificant pathological changes in the heart, liver, and kidney in HSD-fed mice.
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Wang D, Jin H, Sheng J, Cheng L, Lin Q, Lazerev M, Jin P, Li X. A high salt diet protects interleukin 10-deficient mice against chronic colitis by improving the mucosal barrier function. Mol Immunol 2022; 150:39-46. [PMID: 35944464 DOI: 10.1016/j.molimm.2022.07.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 07/04/2022] [Accepted: 07/31/2022] [Indexed: 11/24/2022]
Abstract
A high salt diet (HSD) is often associated with a high risk for a variety of diseases, such as obesity and cardiovascular disease. Previous studies have demonstrated that an HSD enhances Th17 responses and increases the severity of autoimmune diseases. In this study, we investigated the effects of HSD (4% NaCl w/w) on colitis in IL-10-/- mice by comparing it with IL-10-/- mice on a normal salt diet (NSD, 1% NaCl w/w). The colonic epithelial barrier integrity in IL-10-/- mice, as well as differentiated Caco-2 cells exposed to high NaCl and proinflammatory cytokines, was also evaluated. Surprisingly, an HSD significantly ameliorated macroscopic colitis, improved the intestinal permeability of FITC-dextran, and decreased multiple proinflammatory cytokines in the colonic mucosa of IL-10-/- mice. While occludin and claudin-1, two major tight-junction proteins, were markedly down-regulated in IL-10-/- mice, HSD effectively restored their expressions. In Caco-2 cells, proinflammatory cytokines (TNF-α and IL-1β) potently decreased the expression of occludin and claudin-1 regardless of salt conditions [0.9% (standard), 1.2%, or 1.5% NaCl]. Under high salt conditions (1.5% NaCl), transepithelial electrical resistance (TEER) was elevated, while the addition of IL-10 further downregulated occludin and claudin-1 expressions by ~50% and lowered TEER. These findings suggest that, in the absence of IL-10, HSD promotes intestinal epithelial integrity and exerts an anti-inflammatory role as demonstrated by alleviated colitis in IL-10-/- mice. Moreover, Caco-2 data indicate that, in an inflammatory environment and under high NaCl conditions, IL-10 may play a proinflammatory role by disrupting colonic epithelial integrity and thus further promoting inflammation.
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Affiliation(s)
- Dezhi Wang
- Department of Gastroenterology, the Seventh Medical Center of PLA General Hospital, Beijing 100700, China; Department of Medicine/GI Division, School of Medicine, Johns Hopkins University, Baltimore 21205, United States
| | - Hua Jin
- Department of Pathology, the Seventh Medical Center of PLA General Hospital, Beijing 100700, China
| | - Jianqiu Sheng
- Department of Gastroenterology, the Seventh Medical Center of PLA General Hospital, Beijing 100700, China
| | - Leon Cheng
- Division of Pediatric Allergy and Immunology, Johns Hopkins University, Baltimore 21205, United States
| | - Qing Lin
- Department of Anesthesiology and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore 21205, United States
| | - Mark Lazerev
- Department of Medicine/GI Division, School of Medicine, Johns Hopkins University, Baltimore 21205, United States
| | - Peng Jin
- Department of Gastroenterology, the Seventh Medical Center of PLA General Hospital, Beijing 100700, China; Senior Department of Gastroenterology, the First Medical Center of PLA General Hospital, Beijing 100853, China.
| | - Xuhang Li
- Department of Medicine/GI Division, School of Medicine, Johns Hopkins University, Baltimore 21205, United States.
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21
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Freitas FEDA, Batista MAC, Braga DCDA, de Oliveira LB, Antunes VR, Cardoso LM. The gut-brain axis and sodium appetite: Can inflammation-related signaling influence the control of sodium intake? Appetite 2022; 175:106050. [PMID: 35447164 DOI: 10.1016/j.appet.2022.106050] [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: 09/16/2021] [Revised: 04/11/2022] [Accepted: 04/12/2022] [Indexed: 11/29/2022]
Abstract
Sodium is the main cation present in the extracellular fluid. Sodium and water content in the body are responsible for volume and osmotic homeostasis through mechanisms involving sodium and water excretion and intake. When body sodium content decreases below the homeostatic threshold, a condition termed sodium deficiency, highly motivated sodium seeking, and intake occurs. This is termed sodium appetite. Classically, sodium and water intakes are controlled by a number of neuroendocrine mechanisms that include signaling molecules from the renin-angiotensin-aldosterone system acting in the central nervous system (CNS). However, recent findings have shown that sodium and water intakes can also be influenced by inflammatory agents and mediators acting in the CNS. For instance, central infusion of IL-1β or TNF-α can directly affect sodium and water consumption in animal models. Some dietary conditions, such as high salt intake, have been shown to change the intestinal microbiome composition, stimulating the immune branch of the gut-brain axis through the production of inflammatory cytokines, such as IL-17, which can stimulate the brain immune system. In this review, we address the latest findings supporting the hypothesis that immune signaling in the brain could produce a reduction in thirst and sodium appetite and, therefore, contribute to sodium intake control.
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Affiliation(s)
| | | | | | | | - Vagner Roberto Antunes
- Dept. of Physiology and Biophysics - ICB, University of São Paulo, São Paulo, SP, Brazil
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22
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Li X, Alu A, Wei Y, Wei X, Luo M. The modulatory effect of high salt on immune cells and related diseases. Cell Prolif 2022; 55:e13250. [PMID: 35747936 PMCID: PMC9436908 DOI: 10.1111/cpr.13250] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/20/2022] [Accepted: 04/22/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The adverse effect of excessive salt intake has been recognized in decades. Researchers have mainly focused on the association between salt intake and hypertension. However, studies in recent years have proposed the existence of extra-renal sodium storage and provided insight into the immunomodulatory function of sodium. OBJECTIVES In this review, we discuss the modulatory effects of high salt on various innate and adaptive immune cells and immune-regulated diseases. METHODS We identified papers through electronic searches of PubMed database from inception to March 2022. RESULTS An increasing body of evidence has demonstrated that high salt can modulate the differentiation, activation and function of multiple immune cells. Furthermore, a high-salt diet can increase tissue sodium concentrations and influence the immune responses in microenvironments, thereby affecting the development of immune-regulated diseases, including hypertension, multiple sclerosis, cancer and infections. These findings provide a novel mechanism for the pathology of certain diseases and indicate that salt might serve as a target or potential therapeutic agent in different disease contexts. CONCLUSION High salt has a profound impact on the differentiation, activation and function of multiple immune cells. Additionally, an HSD can modulate the development of various immune-regulated diseases.
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Affiliation(s)
- Xian Li
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Aqu Alu
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Yuquan Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Xiawei Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Min Luo
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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Gao Y, Wu A, Li Y, Chang Y, Xue C, Tang Q. The risk of carrageenan-induced colitis is exacerbated under high-sucrose/high-salt diet. Int J Biol Macromol 2022; 210:475-482. [PMID: 35483512 DOI: 10.1016/j.ijbiomac.2022.04.158] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 04/08/2022] [Accepted: 04/21/2022] [Indexed: 11/29/2022]
Abstract
As a common used food additive, the threat of carrageenan to colon health is controversial, and is inseparable from personal eating habits. However, no detailed descriptions are available concerning the influence of different dietary patterns on the risk of carrageenan-induced colitis. In this study, we explored the risk of κ-carrageenan-induced colitis under high-sucrose or high-salt diet in mice. Intervention with carrageenan under high-sucrose diet significantly reduced colon length and induced more serious deepening of the crypts. In addition, the intake of carrageenan under high-sucrose/high-salt diet induced more serious goblet cell reduction and increased intestinal permeability. 16S rRNA sequencing and LC-MS based metabonomic approaches were conducted to explore the changes of gut microbiota and metabolites. It was found that the intake of carrageenan under high-sucrose/high-salt diet significantly reduced the abundance of anti-inflammatory bacterium and increased the abundance of harmful bacterium, which was significantly related to the decrease of anti-inflammatory metabolites in colon, such as methyl caffeate, spermine, oleanolic acid and senecionine. Overall, high-sucrose or high-salt diet increased the risk of carrageenan-induced colitis. This reminds us to maintain good eating habits, do not prefer high-sugar or high-salt foods, and try not to consume large amounts of carrageenan continuously to maintain gut health.
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Affiliation(s)
- Yuan Gao
- Laboratory of Food Science and Human Health, College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China
| | - Axue Wu
- Laboratory of Food Science and Human Health, College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China
| | - Yuan Li
- Laboratory of Food Science and Human Health, College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China
| | - Yaoguang Chang
- Laboratory of Food Science and Human Health, College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China
| | - Changhu Xue
- Laboratory of Food Science and Human Health, College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China; Laboratory of Marine Drugs and Biological Products, Pilot National Laboratory for Marine Science and Technology, Qingdao, Shandong 266235, China
| | - Qingjuan Tang
- Laboratory of Food Science and Human Health, College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong 266003, China; Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China.
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Madecassic acid alleviates colitis-associated colorectal cancer by blocking the recruitment of myeloid-derived suppressor cells via the inhibition of IL-17 expression in γδT17 cells. Biochem Pharmacol 2022; 202:115138. [PMID: 35700756 DOI: 10.1016/j.bcp.2022.115138] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Madecassic acid (MA), a triterpene compound isolated from Centella Asiatica herbs, has previously been shown to attenuate colitis induced by DSS in mice. In the present study, we address whether and how MA ameliorates colitis-associated colorectal cancer (CAC), which accounts for a considerable proportion of colorectal cancer. METHODS CAC was induced by AOM/DSS in mice, and MA was administered orally once a day. To identify the source cells of IL-17 and the target cells for MA reducing the expression of IL-17 in the colons of CAC mice, single-cell suspensions were prepared from the colons of CAC mice and analyzed by flow cytometry. An adoptive transfer experiment was performed to verify the importance of the decreasing γδT17 cell population in the anti-CAC effect of MA. RESULTS Oral administration of MA reduced the burden and incidence of tumors in the CAC mice. MA decreased the number of MDSCs in the colon tissues of CAC mice and ameliorated anti-tumor immune responses. MA could prevent the migration of MDSCs by inhibiting the activation of γδT17 cells and the expression of chemokines. The population of activated-γδT17 cells in the tumor microenvironment of CAC mice positively correlated with the number of MDSCs and tumors as well as tumor load. Moreover, the anti-CAC effect of MA was significantly counteracted by the adoptive transfer of γδT17 cells. CONCLUSIONS MA alleviates CAC by blocking the recruitment of MDSCs to increase the population of anti-tumor immune cells in tumor microenvironment via inhibition of the activation of γδT17 cells.
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25
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He P, Yu L, Tian F, Zhang H, Chen W, Zhai Q. Dietary Patterns and Gut Microbiota: The Crucial Actors in Inflammatory Bowel Disease. Adv Nutr 2022; 13:1628-1651. [PMID: 35348593 PMCID: PMC9526834 DOI: 10.1093/advances/nmac029] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/25/2022] [Accepted: 03/22/2022] [Indexed: 02/06/2023] Open
Abstract
It is widely believed that diet and the gut microbiota are strongly related to the occurrence and progression of inflammatory bowel disease (IBD), but the effects of the interaction between dietary patterns and the gut microbiota on IBD have not been well elucidated. In this article, we aim to explore the complex relation between dietary patterns, gut microbiota, and IBD. We first comprehensively summarized the dietary patterns associated with IBD and found that dietary patterns can modulate the occurrence and progression of IBD through various signaling pathways, including mammalian target of rapamycin (mTOR), mitogen-activated protein kinases (MAPKs), signal transducer and activator of transcription 3 (STAT3), and NF-κB. Besides, the gut microbiota performs a vital role in the progression of IBD, which can affect the expression of IBD susceptibility genes, such as dual oxidase 2 (DUOX2) and APOA-1 , the intestinal barrier (in particular, the expression of tight junction proteins), immune function (especially the homeostasis between effector and regulatory T cells) and the physiological metabolism, in particular, SCFAs, bile acids (BAs), and tryptophan metabolism. Finally, we reviewed the current knowledge on the interaction between dietary patterns and the gut microbiota in IBD and found that dietary patterns modulate the onset and progression of IBD, which is partly attributed to the regulation of the gut microbiota (especially SCFAs-producing bacteria and Escherichia coli). Faecalibacteria as "microbiomarkers" of IBD could be used as a target for dietary interventions to alleviate IBD. A comprehensive understanding of the interplay between dietary intake, gut microbiota, and IBD will facilitate the development of personalized dietary strategies based on the regulation of the gut microbiota in IBD and expedite the era of precision nutritional interventions for IBD.
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Affiliation(s)
- Pandi He
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Hao Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, China,Wuxi Translational Medicine Research Center, Jiangsu Translational Medicine Research Institute Wuxi Branch, Wuxi, Jiangsu, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, China
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26
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High-Salt Diet Induces Depletion of Lactic Acid-Producing Bacteria in Murine Gut. Nutrients 2022; 14:nu14061171. [PMID: 35334825 PMCID: PMC8950745 DOI: 10.3390/nu14061171] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/26/2022] [Accepted: 03/02/2022] [Indexed: 02/05/2023] Open
Abstract
Dietary habits are amongst the main factors that influence the gut microbiome. Accumulating evidence points to the impact of a high-salt diet (HSD) on the composition and function of the intestinal microbiota, immune system and disease. In the present study, we thus investigated the effects of different NaCl content in the food (0.03%/sodium deficient, 0.5%/control, 4% and 10% NaCl) on the gut microbiome composition in mice. The bacterial composition was profiled using the 16S ribosomal RNA (rRNA) gene amplicon sequencing. Our results revealed that HSD led to distinct gut microbiome compositions compared to sodium-deficient or control diets. We also observed significant reduction in relative abundances of bacteria associated with immuno-competent short-chain fatty acid (SCFA) production (Bifidobacterium, Faecalibaculum, Blautia and Lactobacillus) in HSD-fed mice along with significant enrichment of Clostridia, Alistipes and Akkermansia depending on the sodium content in food. Furthermore, the predictive functional profiling of microbial communities indicated that the gut microbiota found in each category presents differences in metabolic pathways related to carbohydrate, lipid and amino acid metabolism. The presented data show that HSD cause disturbances in the ecological balance of the gastrointestinal microflora primarily through depletion of lactic acid-producing bacteria in a dose-dependent manner. These findings may have important implications for salt-sensitive inflammatory diseases.
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27
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Amamou A, O’Mahony C, Leboutte M, Savoye G, Ghosh S, Marion-Letellier R. Gut Microbiota, Macrophages and Diet: An Intriguing New Triangle in Intestinal Fibrosis. Microorganisms 2022; 10:490. [PMID: 35336066 PMCID: PMC8952309 DOI: 10.3390/microorganisms10030490] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 02/18/2022] [Accepted: 02/21/2022] [Indexed: 02/07/2023] Open
Abstract
Intestinal fibrosis is a common complication in inflammatory bowel disease (IBD) without specific treatment. As macrophages are the key actors in inflammatory responses and the wound healing process, they have been extensively studied in chronic diseases these past decades. By their exceptional ability to integrate diverse stimuli in their surrounding environment, macrophages display a multitude of phenotypes to underpin a broad spectrum of functions, from the initiation to the resolution of inflammation following injury. The hypothesis that distinct macrophage subtypes could be involved in fibrogenesis and wound healing is emerging and could open up new therapeutic perspectives in the treatment of intestinal fibrosis. Gut microbiota and diet are two key factors capable of modifying intestinal macrophage profiles, shaping their specific function. Defects in macrophage polarisation, inadequate dietary habits, and alteration of microbiota composition may contribute to the development of intestinal fibrosis. In this review, we describe the intriguing triangle between intestinal macrophages, diet, and gut microbiota in homeostasis and how the perturbation of this discreet balance may lead to a pro-fibrotic environment and influence fibrogenesis in the gut.
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Affiliation(s)
- Asma Amamou
- APC Microbiome Ireland, College of Medicine and Health, University College Cork, T12 YT20 Cork, Ireland; (C.O.); (S.G.)
| | - Cian O’Mahony
- APC Microbiome Ireland, College of Medicine and Health, University College Cork, T12 YT20 Cork, Ireland; (C.O.); (S.G.)
| | - Mathilde Leboutte
- INSERM UMR 1073 “Nutrition, Inflammation and Gut-Brain Axis”, Normandy University, 76183 Rouen, France; (M.L.); (R.M.-L.)
| | - Guillaume Savoye
- Department of Gastroenterology, Rouen University Hospital, 76031 Rouen, France;
| | - Subrata Ghosh
- APC Microbiome Ireland, College of Medicine and Health, University College Cork, T12 YT20 Cork, Ireland; (C.O.); (S.G.)
| | - Rachel Marion-Letellier
- INSERM UMR 1073 “Nutrition, Inflammation and Gut-Brain Axis”, Normandy University, 76183 Rouen, France; (M.L.); (R.M.-L.)
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28
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Gut microbiome dysbiosis in inflammatory bowel disease. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2022; 192:179-204. [DOI: 10.1016/bs.pmbts.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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Balan Y, Packirisamy RM, Mohanraj PS. High dietary salt intake activates inflammatory cascades via Th17 immune cells: impact on health and diseases. Arch Med Sci 2022; 18:459-465. [PMID: 35316907 PMCID: PMC8924833 DOI: 10.5114/aoms.2020.96344] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 01/13/2020] [Indexed: 02/02/2023] Open
Abstract
The incidence of immune-mediated inflammatory diseases (IMIDs) is on the rise. A high salt content in the diet was found to play a crucial role in mediating IMIDs. It was demonstrated that increased salt concentration favors the differentiation of CD4+ cells to pathogenic Th17 cells, which predispose to several inflammatory diseases by modulating the immunological milieu. In auto-immune diseases increased salt concentration causes stable induction of Th17 cells. In cancer, increased salt concentration triggers chronic inflammation and increases vascular endothelial growth factor levels. Salt-mediated proliferation of Th17 cells has been found to reduce nitric oxide production in the endothelial cells, leading to hypertension. Increased salt concentration was found to alter the intestinal flora, which favors local inflammation. This review attempts to explain the role of high salt concentration and its molecular pathways in causing IMIDs.
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Affiliation(s)
- Yuvaraj Balan
- Pondicherry Institute of Medical Sciences, Kalapet, Puducherry, India
| | | | - P S Mohanraj
- All India Institute of Medical Sciences, Gorakhpur, India
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30
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Mao F, Wang E, Xu J, Lu J, Yan G, Fu L, Jiao Y, Wu L, Liu T, Li Y. Transcriptome Analysis of Multiple Metabolic Tissues in High-Salt Diet-Fed Mice. Front Endocrinol (Lausanne) 2022; 13:887843. [PMID: 35655797 PMCID: PMC9152432 DOI: 10.3389/fendo.2022.887843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 04/01/2022] [Indexed: 11/17/2022] Open
Abstract
High-salt diet (HSD) is associated with dysregulated metabolism and metabolic disorders. Although previous studies have indicated its effect on metabolic tissues, the involving molecular mechanisms are not quite understood. In the present study, we provided a comprehensive transcriptome analysis on multiple metabolic tissues of HSD-fed mouse model by RNA sequencing. We observed that several genes associated with de novo lipogenesis and cholesterol biosynthesis were significantly downregulated in white adipose tissue and liver tissue of HSD mice group, such as Fasn, Scd1, Acaca, and Thrsp. Furthermore, combined with secretome datasets, our results further demonstrated that HSD could alter expression levels of organokines in metabolic tissues, for example, Tsk and Manf, in liver tissue and, thus, possibly mediate cross-talk between different metabolic tissues. Our study provided new insight about molecular signatures of HSD on multiple metabolic tissues.
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Affiliation(s)
- Fei Mao
- School of Life Sciences, Fudan University, Shanghai, China
| | - E. Wang
- Department of Laboratory Animal Science, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jing Xu
- Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jin Lu
- Department of Laboratory Animal Science, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Guofeng Yan
- Department of Laboratory Animal Science, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Li Fu
- Department of Laboratory Animal Science, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yang Jiao
- Department of Laboratory Animal Science, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ling Wu
- Department of Assisted Reproduction, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Yao Li, ; Tiemin Liu, ; Ling Wu,
| | - Tiemin Liu
- School of Life Sciences, Fudan University, Shanghai, China
- *Correspondence: Yao Li, ; Tiemin Liu, ; Ling Wu,
| | - Yao Li
- Department of Laboratory Animal Science, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Yao Li, ; Tiemin Liu, ; Ling Wu,
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Xu J, Tang M, Liu Y, Xu J, Xu X. Safety assessment of monosodium glutamate based on intestinal function and flora in mice. FOOD SCIENCE AND HUMAN WELLNESS 2022. [DOI: 10.1016/j.fshw.2021.07.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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32
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Ding R, Xiao Z, Jiang Y, Yang Y, Ji Y, Bao X, Xing K, Zhou X, Zhu S. Calcitriol ameliorates damage in high-salt diet-induced hypertension: Evidence of communication with the gut-kidney axis. Exp Biol Med (Maywood) 2021; 247:624-640. [PMID: 34894804 DOI: 10.1177/15353702211062507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Several studies have established a link between high-salt diet, inflammation, and hypertension. Vitamin D supplementation has shown anti-inflammatory effects in many diseases; gut microbiota is also associated with a wide variety of cardiovascular diseases, but potential role of vitamin D and gut microbiota in high-salt diet-induced hypertension remains unclear. Therefore, we used rats with hypertension induced by a high-salt diet as the research object and analyzed the transcriptome of their tissues (kidney and colon) and gut microbiome to conduct an overall analysis of the gut-kidney axis. We aimed to confirm the effects of high salt and calcitriol on the gut-kidney immune system and the composition of the intestinal flora. We demonstrate that consumption of a high-salt diet results in hypertension and inflammation in the colon and kidney and alteration of gut microbiota composition and function. High-salt diet-induced hypertension was found to be associated with seven microbial taxa and mainly associated with reduced production of the protective short-chain fatty acid butyrate. Calcitriol can reduce colon and kidney inflammation, and there are gene expression changes consistent with restored intestinal barrier function. The protective effect of calcitriol may be mediated indirectly by immunological properties. Additionally, the molecular pathways of the gut microbiota-mediated blood pressure regulation may be related to circadian rhythm signals, which needs to be further investigated. An innovative association analysis of the microbiota may be a key strategy to understanding the association between gene patterns and host.
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Affiliation(s)
- Ruifeng Ding
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zilong Xiao
- Department of Cardiology, Zhongshan Hospital of Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China
| | - Yufeng Jiang
- Department of Nephrology, 66329Shuguang Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 200021, China.,Key Laboratory of Liver and Kidney Diseases (Shanghai University of Traditional Chinese Medicine), Ministry of Education, Shanghai 201203, China
| | - Yi Yang
- Shanghai Cinoasia Institute, Shanghai 200438, China
| | - Yang Ji
- School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Xunxia Bao
- Shanghai Cinoasia Institute, Shanghai 200438, China
| | - Kaichen Xing
- Shanghai Cinoasia Institute, Shanghai 200438, China
| | - Xinli Zhou
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Sibo Zhu
- School of Life Sciences, Fudan University, Shanghai 200438, China
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Marion-Letellier R, Leboutte M, Amamou A, Raman M, Savoye G, Ghosh S. Diet in Intestinal Fibrosis: A Double-Edged Sword. Nutrients 2021; 13:nu13093148. [PMID: 34579023 PMCID: PMC8470259 DOI: 10.3390/nu13093148] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/07/2021] [Accepted: 09/07/2021] [Indexed: 11/30/2022] Open
Abstract
The natural history of inflammatory bowel diseases, especially Crohn’s disease, is frequently complicated by intestinal fibrosis. Because of the lack of effective treatments for intestinal fibrosis, there is an urgent need to develop new therapies. Factors promoting intestinal fibrosis are currently unclear, but diet is a potential culprit. Diet may influence predisposition to develop intestinal fibrosis or alter its natural history by modification of both the host immune response and intestinal microbial composition. Few studies have documented the effects of dietary factors in modulating IBD-induced intestinal fibrosis. As the mechanisms behind fibrogenesis in the gut are believed to be broadly similar to those from extra-intestinal organs, it may be relevant to investigate which dietary components can inhibit or promote fibrosis factors such as myofibroblasts progenitor activation in other fibrotic diseases.
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Affiliation(s)
- Rachel Marion-Letellier
- UNIROUEN, INSERM UMR 1073 Nutrition, Inflammation and Gut-Brain Axis, Normandie University, 76183 Rouen, France; (M.L.); (G.S.)
- Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, 76183 Rouen, France
- Correspondence:
| | - Mathilde Leboutte
- UNIROUEN, INSERM UMR 1073 Nutrition, Inflammation and Gut-Brain Axis, Normandie University, 76183 Rouen, France; (M.L.); (G.S.)
- Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, 76183 Rouen, France
| | - Asma Amamou
- APC Microbiome Ireland, Biosciences Building, University College Cork, Cork, Ireland; (A.A.); (S.G.)
| | - Maitreyi Raman
- Division of Gastroenterology, University of Calgary, Calgary, AB T2N 4N1, Canada;
- Department of Community Health Sciences, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Guillaume Savoye
- UNIROUEN, INSERM UMR 1073 Nutrition, Inflammation and Gut-Brain Axis, Normandie University, 76183 Rouen, France; (M.L.); (G.S.)
- Institute for Research and Innovation in Biomedicine (IRIB), UNIROUEN, 76183 Rouen, France
- Department of Gastroenterology, Rouen University Hospital, 76031 Rouen, France
| | - Subrata Ghosh
- APC Microbiome Ireland, Biosciences Building, University College Cork, Cork, Ireland; (A.A.); (S.G.)
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Dietary salt exacerbates intestinal fibrosis in chronic TNBS colitis via fibroblasts activation. Sci Rep 2021; 11:15055. [PMID: 34301970 PMCID: PMC8302708 DOI: 10.1038/s41598-021-94280-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 07/01/2021] [Indexed: 02/07/2023] Open
Abstract
Intestinal fibrosis is a frequent complication in inflammatory bowel diseases (IBD). It is a challenge to identify environmental factors such as diet that may be driving this risk. Intestinal fibrosis result from accumulation of extracellular matrix (ECM) proteins secreted by myofibroblasts. Factors promoting intestinal fibrosis are unknown, but diet appears to be a critical component in its development. Consumption of salt above nutritional recommendations can exacerbate chronic inflammation. So far, high salt diet (HSD) have not been thoroughly investigated in the context of intestinal fibrosis associated to IBD. In the present study, we analyze the role of dietary salt in TNBS chronic colitis induced in rat, an intestinal fibrosis model, or in human colon fibroblast cells. Here, we have shown that high-salt diet exacerbates undernutrition and promoted ECM-associated proteins in fibroblasts. Taken together, our results suggested that dietary salt can activate intestinal fibroblasts, thereby contributing to exacerbation of intestinal fibrosis. Dietary salt may be considered as a putative environmental factor that drives intestinal fibrosis risk.
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Maifeld A, Wild J, Karlsen TV, Rakova N, Wistorf E, Linz P, Jung R, Birukov A, Gimenez-Rivera VA, Wilck N, Bartolomaeus T, Dechend R, Kleinewietfeld M, Forslund SK, Krause A, Kokolakis G, Philipp S, Clausen BE, Brand A, Waisman A, Kurschus FC, Wegner J, Schultheis M, Luft FC, Boschmann M, Kelm M, Wiig H, Kuehne T, Müller DN, Karbach S, Markó L. Skin Sodium Accumulates in Psoriasis and Reflects Disease Severity. J Invest Dermatol 2021; 142:166-178.e8. [PMID: 34237339 DOI: 10.1016/j.jid.2021.06.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 05/14/2021] [Accepted: 06/03/2021] [Indexed: 12/14/2022]
Abstract
Sodium can accumulate in the skin at concentrations exceeding serum levels. A high sodium environment can lead to pathogenic T helper 17 cell expansion. Psoriasis is a chronic inflammatory skin disease in which IL-17‒producing T helper 17 cells play a crucial role. In an observational study, we measured skin sodium content in patients with psoriasis and in age-matched healthy controls by Sodium-23 magnetic resonance imaging. Patients with PASI > 5 showed significantly higher sodium and water content in the skin but not in other tissues than those with lower PASI or healthy controls. Skin sodium concentrations measured by Sodium-23 spectroscopy or by atomic absorption spectrometry in ashed-skin biopsies verified the findings with Sodium-23 magnetic resonance imaging. In vitro T helper 17 cell differentiation of naive CD4+ cells from patients with psoriasis markedly induced IL-17A expression under increased sodium chloride concentrations. The imiquimod-induced psoriasis mouse model replicated the human findings. Extracellular tracer Chromium-51-EDTA measurements in imiquimod- and sham-treated skin showed similar extracellular volumes, rendering excessive water of intracellular origin. Chronic genetic IL-17A‒driven psoriasis mouse models underlined the role of IL-17A in dermal sodium accumulation and inflammation. Our data describe skin sodium as a pathophysiological feature of psoriasis, which could open new avenues for its treatment.
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Affiliation(s)
- András Maifeld
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany; German Centre for Cardiovascular Research (DZHK), Berlin, Germany; Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany; Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Johannes Wild
- Center of Cardiology - Cardiology I, University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany; Center for Thrombosis and Hemostasis (CTH), University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Tine V Karlsen
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Natalia Rakova
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Elisa Wistorf
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Peter Linz
- Institute of Radiology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany; Department of Nephrology and Hypertension, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Rebecca Jung
- Center for Thrombosis and Hemostasis (CTH), University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany; Institute for Molecular Medicine, University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Anna Birukov
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany; German Centre for Cardiovascular Research (DZHK), Berlin, Germany; Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany
| | | | - Nicola Wilck
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany; German Centre for Cardiovascular Research (DZHK), Berlin, Germany; Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany; Department of Nephrology and Internal Intensive Care Medicine, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Theda Bartolomaeus
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany; German Centre for Cardiovascular Research (DZHK), Berlin, Germany; Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Ralf Dechend
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany; German Centre for Cardiovascular Research (DZHK), Berlin, Germany; Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany; Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany; Helios Clinic Berlin-Buch, Berlin, Germany
| | - Markus Kleinewietfeld
- VIB Laboratory of Translational Immunomodulation, VIB Center for Inflammation Research (IRC), Hasselt University Campus Diepenbeek, Hasselt, Belgium
| | - Sofia K Forslund
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany; German Centre for Cardiovascular Research (DZHK), Berlin, Germany; Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany; Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Andreas Krause
- Medical Centre for Rheumatology and Clinical Immunology, Immanuel Krankenhaus Berlin, Berlin, Germany
| | - Georgios Kokolakis
- Department of Dermatology, Venereology and Allergology, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Sandra Philipp
- Department of Dermatology, Venereology and Allergology, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Björn E Clausen
- Department of Nephrology and Hypertension, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Anna Brand
- Department of Nephrology and Hypertension, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Ari Waisman
- Department of Nephrology and Hypertension, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Florian C Kurschus
- Department of Dermatology, Heidelberg University Hospital, Heidelberg, Germany
| | - Joanna Wegner
- Department of Dermatology, University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Michael Schultheis
- Department of Dermatology, University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Friedrich C Luft
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Michael Boschmann
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany; Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany; Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - Marcus Kelm
- Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany; Institute for Imaging Science and Computational Modelling in Cardiovascular Medicine, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany; Department of Congenital Heart Disease, German Heart Center Berlin (DHZB), Berlin, Germany
| | - Helge Wiig
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Titus Kuehne
- Institute for Imaging Science and Computational Modelling in Cardiovascular Medicine, Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany; Department of Congenital Heart Disease, German Heart Center Berlin (DHZB), Berlin, Germany
| | - Dominik N Müller
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany; German Centre for Cardiovascular Research (DZHK), Berlin, Germany; Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany; Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany; Max Delbrück Center for Molecular Medicine in the Helmholtz Association Berlin, Berlin, Germany
| | - Susanne Karbach
- Center of Cardiology - Cardiology I, University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany; Center for Thrombosis and Hemostasis (CTH), University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Lajos Markó
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany; German Centre for Cardiovascular Research (DZHK), Berlin, Germany; Berlin Institute of Health, Charité - Universitätsmedizin Berlin, Berlin, Germany; Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
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Feng Q, Wong SH, Zheng J, Yang Q, Sung JJ, Tsoi KK. Intake of processed meat, but not sodium, is associated with risk of colorectal cancer: Evidence from a large prospective cohort and two-sample Mendelian randomization. Clin Nutr 2021; 40:4551-4559. [PMID: 34229259 DOI: 10.1016/j.clnu.2021.05.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 05/13/2021] [Accepted: 05/31/2021] [Indexed: 01/10/2023]
Abstract
BACKGROUND & AIMS Processed meat and high sodium intake are common in Western diet. The objective was to examine their independent effects on the risk of colorectal cancer (CRC). METHODS We performed both observational analysis with UK Biobank and genetic analysis with Mendelian randomization (MR). The 24-h urinary sodium (UNa) and reported intake of processed meat were fitted on incident CRC by multivariable Cox proportional hazard model, adjusted for covariates, such as age, gender, family history, etc. Different sodium measures were used for sensitivity analyses. Two-sample MR analyses were performed using summary data from genome-wide association studies of UNa and CRC. Multivariable MR was adjusted for body mass index. RESULTS We included 415 524 eligible participants from UK Biobank. During a median follow-up of 11.1 years, 2663 participants were diagnosed with CRC. High intake of processed meat independently increased risk of CRC by 23% (HR 1.23; 95% CI: 1.03 to 1.46), but 24-h UNa was not significantly associated with CRC (HR 0.96; 95% CI: 0.87 to 1.06). Furthermore, MR also showed little evidence for the effect of UNa on CRC (OR 1.02; 95% CI: 0.11 to 9.42). Sensitivity analyses showed consistent results across different measurements of sodium intake. CONCLUSIONS Intake of processed meat had an independent effect on the risk of CRC, but the risk was not associated with sodium level. Reduction of processed meat intake may be an effective strategy for CRC prevention, while sodium reduction should still be recommended to achieve other health benefits.
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Affiliation(s)
- Qi Feng
- Division of Epidemiology, School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China
| | - Sunny H Wong
- Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Jie Zheng
- MRC Integrative Epidemiology Unit, Bristol Population Health Science Institute, The University of Bristol, United Kingdom
| | - Qian Yang
- MRC Integrative Epidemiology Unit, Bristol Population Health Science Institute, The University of Bristol, United Kingdom
| | - Joseph Jy Sung
- Department of Medicine & Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Kelvin Kf Tsoi
- Division of Epidemiology, School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China; SH Big Data Decision Analytics Research Centre, The Chinese University of Hong Kong, Hong Kong, China.
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Stojanović I, Saksida T, Miljković Đ, Pejnović N. Modulation of Intestinal ILC3 for the Treatment of Type 1 Diabetes. Front Immunol 2021; 12:653560. [PMID: 34149694 PMCID: PMC8209467 DOI: 10.3389/fimmu.2021.653560] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 05/18/2021] [Indexed: 11/22/2022] Open
Abstract
Gut-associated lymphoid tissue (GALT) is crucial for the maintenance of the intestinal homeostasis, but it is also the potential site of the activation of autoreactive cells and initiation/propagation of autoimmune diseases in the gut and in the distant organs. Type 3 innate lymphoid cells (ILC3) residing in the GALT integrate signals from food ingredients and gut microbiota metabolites in order to control local immunoreactivity. Notably, ILC3 secrete IL-17 and GM-CSF that activate immune cells in combating potentially pathogenic microorganisms. ILC3 also produce IL-22 that potentiates the strength and integrity of epithelial tight junctions, production of mucus and antimicrobial peptides thus enabling the proper function of the intestinal barrier. The newly discovered function of small intestine ILC3 is the secretion of IL-2 and the promotion of regulatory T cell (Treg) generation and function. Since the intestinal barrier dysfunction, together with the reduction in small intestine ILC3 and Treg numbers are associated with the pathogenesis of type 1 diabetes (T1D), the focus of this article is intestinal ILC3 modulation for the therapy of T1D. Of particular interest is free fatty acids receptor 2 (FFAR2), predominantly expressed on intestinal ILC3, that can be stimulated by available selective synthetic agonists. Thus, we propose that FFAR2-based interventions by boosting ILC3 beneficial functions may attenuate autoimmune response against pancreatic β cells during T1D. Also, it is our opinion that treatments based on ILC3 stimulation by functional foods can be used as prophylaxis in individuals that are genetically predisposed to develop T1D.
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Affiliation(s)
- Ivana Stojanović
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Tamara Saksida
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Đorđe Miljković
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Nada Pejnović
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
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Altered gut microbiome and autism like behavior are associated with parental high salt diet in male mice. Sci Rep 2021; 11:8364. [PMID: 33863940 PMCID: PMC8052368 DOI: 10.1038/s41598-021-87678-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 03/30/2021] [Indexed: 12/23/2022] Open
Abstract
Neurodevelopmental disorders are conditions caused by the abnormal development of the central nervous system. Autism spectrum disorder (ASD) is currently the most common form of such disorders, affecting 1% of the population worldwide. Despite its prevalence, the mechanisms underlying ASD are not fully known. Recent studies have suggested that the maternal gut microbiome can have profound effects on neurodevelopment. Considering that the gut microbial composition is modulated by diet, we tested the hypothesis that ASD-like behavior could be linked to maternal diet and its associated gut dysbiosis. Therefore, we used a mouse model of parental high salt diet (HSD), and specifically evaluated social and exploratory behaviors in their control-fed offspring. Using 16S genome sequencing of fecal samples, we first show that (1) as expected, HSD changed the maternal gut microbiome, and (2) this altered gut microbiome was shared with the offspring. More importantly, behavioral analysis of the offspring showed hyperactivity, increased repetitive behaviors, and impaired sociability in adult male mice from HSD-fed parents. Taken together, our data suggests that parental HSD consumption is strongly associated with offspring ASD-like behavioral abnormalities via changes in gut microbiome.
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39
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Miljković Đ, Jevtić B, Stojanović I, Dimitrijević M. ILC3, a Central Innate Immune Component of the Gut-Brain Axis in Multiple Sclerosis. Front Immunol 2021; 12:657622. [PMID: 33912185 PMCID: PMC8071931 DOI: 10.3389/fimmu.2021.657622] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 03/15/2021] [Indexed: 12/12/2022] Open
Abstract
Gut immune cells have been increasingly appreciated as important players in the central nervous system (CNS) autoimmunity in animal models of multiple sclerosis (MS). Among the gut immune cells, innate lymphoid cell type 3 (ILC3) is of special interest in MS research, as they represent the innate cell counterpart of the major pathogenic cell population in MS, i.e. T helper (Th)17 cells. Importantly, these cells have been shown to stimulate regulatory T cells (Treg) and to counteract pathogenic Th17 cells in animal models of autoimmune diseases. Besides, they are also well known for their ability to stabilize the intestinal barrier and to shape the immune response to the gut microbiota. Thus, proper maintenance of the intestinal barrier and the establishment of the regulatory milieu in the gut performed by ILC3 may prevent activation of CNS antigen-specific Th17 cells by the molecular mimicry. Recent findings on the role of ILC3 in the gut-CNS axis and their relevance for MS pathogenesis will be discussed in this paper. Possibilities of ILC3 functional modulation for the benefit of MS patients will be addressed, as well.
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Affiliation(s)
- Đorđe Miljković
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Bojan Jevtić
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Ivana Stojanović
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Mirjana Dimitrijević
- Department of Immunology, Institute for Biological Research "Siniša Stanković" - National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
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Tiriveedhi V, Ivy MT, Myles EL, Zent R, Rathmell JC, Titze J. Ex Vivo High Salt Activated Tumor-Primed CD4+T Lymphocytes Exert a Potent Anti-Cancer Response. Cancers (Basel) 2021; 13:cancers13071690. [PMID: 33918403 PMCID: PMC8038238 DOI: 10.3390/cancers13071690] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 02/02/2023] Open
Abstract
Simple Summary Cell based immunotherapy is rapidly emerging as a promising cancer treatment. Salt (sodium chloride) treatment to immune cell cultures is known to induce inflammatory activation. In our current study, we analyzed the anti-cancer ability of salt treatment on immune cells outside the host followed by reinfusion into the host. Using a pre-clinical breast cancer model, we demonstrated that external salt treatment on T-cell subset of immune cells produced a viable anti-cancer response, which may have future human clinical application. Abstract Cell based immunotherapy is rapidly emerging as a promising cancer treatment. A modest increase in salt (sodium chloride) concentration in immune cell cultures is known to induce inflammatory phenotypic differentiation. In our current study, we analyzed the ability of salt treatment to induce ex vivo expansion of tumor-primed CD4 (cluster of differentiation 4)+T cells to an effector phenotype. CD4+T cells were isolated using immunomagnetic beads from draining lymph nodes and spleens from tumor bearing C57Bl/6 mice, 28 days post-injection of Py230 syngeneic breast cancer cells. CD4+T cells from non-tumor bearing mice were isolated from splenocytes of 12-week-old C57Bl/6 mice. These CD4+T cells were expanded ex vivo with five stimulation cycles, and each cycle comprised of treatment with high salt (Δ0.035 M NaCl) or equimolar mannitol controls along with anti-CD3/CD28 monoclonal antibodies for the first 3 days, followed by the addition of interleukin (IL)-2/IL-7 cytokines and heat killed Py230 for 4 days. Ex vivo high salt treatment induced a two-fold higher Th1 (T helper type 1) expansion and four-fold higher Th17 expansion compared to equimolar mannitol treatment. Importantly, the high salt expanded CD4+T cells retained tumor-specificity, as demonstrated by higher in vitro cytotoxicity against Py230 breast cancer cells and reduced in vivo syngeneic tumor growth. Metabolic studies revealed that high salt treatment enhanced the glycolytic reserve and basal mitochondrial oxidation of CD4+T cells, suggesting a role of high salt in enhanced pro-growth anabolic metabolism needed for inflammatory differentiation. Mechanistic studies demonstrated that the high salt induced switch to the effector phenotype was mediated by tonicity-dependent transcription factor, TonEBP/NFAT5. Using a transgenic murine model, we demonstrated that CD4 specific TonEBP/NFAT5 knock out (CD4cre/creNFAT5flox/flox) abrogated the induction of the effector phenotype and anti-tumor efficiency of CD4+T cells following high salt treatment. Taken together, our data suggest that high salt-mediated ex vivo expansion of tumor-primed CD4+T cells could induce effective tumor specific anti-cancer responses, which may have a novel cell-based cancer immunotherapeutic application.
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Affiliation(s)
- Venkataswarup Tiriveedhi
- Department of Biological Sciences, Tennessee State University, 3500 John A Merritt Blvd, Nashville, TN 37209, USA; (M.T.I.); (E.L.M.)
- Division of Pharmacology, Vanderbilt University, Nashville, TN 37212, USA
- Correspondence: ; Tel.: +1-615-963-5779; Fax: +1-615-963-5747
| | - Michael T. Ivy
- Department of Biological Sciences, Tennessee State University, 3500 John A Merritt Blvd, Nashville, TN 37209, USA; (M.T.I.); (E.L.M.)
| | - Elbert L. Myles
- Department of Biological Sciences, Tennessee State University, 3500 John A Merritt Blvd, Nashville, TN 37209, USA; (M.T.I.); (E.L.M.)
| | - Roy Zent
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA;
| | - Jeffrey C. Rathmell
- Department Pathology, Microbiology and Immunology, Vanderbilt University Medical Center North, Nashville, TN 37232, USA;
| | - Jens Titze
- Program in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore 169857, Singapore;
- Division of Nephrology, Duke University School of Medicine, 2 Genome Court, Durham, NC 27710, USA
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41
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Tan J, Ni D, Ribeiro RV, Pinget GV, Macia L. How Changes in the Nutritional Landscape Shape Gut Immunometabolism. Nutrients 2021; 13:823. [PMID: 33801480 PMCID: PMC7999246 DOI: 10.3390/nu13030823] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 02/25/2021] [Accepted: 02/26/2021] [Indexed: 12/13/2022] Open
Abstract
Cell survival, proliferation and function are energy-demanding processes, fuelled by different metabolic pathways. Immune cells like any other cells will adapt their energy production to their function with specific metabolic pathways characteristic of resting, inflammatory or anti-inflammatory cells. This concept of immunometabolism is revolutionising the field of immunology, opening the gates for novel therapeutic approaches aimed at altering immune responses through immune metabolic manipulations. The first part of this review will give an extensive overview on the metabolic pathways used by immune cells. Diet is a major source of energy, providing substrates to fuel these different metabolic pathways. Protein, lipid and carbohydrate composition as well as food additives can thus shape the immune response particularly in the gut, the first immune point of contact with food antigens and gastrointestinal tract pathogens. How diet composition might affect gut immunometabolism and its impact on diseases will also be discussed. Finally, the food ingested by the host is also a source of energy for the micro-organisms inhabiting the gut lumen particularly in the colon. The by-products released through the processing of specific nutrients by gut bacteria also influence immune cell activity and differentiation. How bacterial metabolites influence gut immunometabolism will be covered in the third part of this review. This notion of immunometabolism and immune function is recent and a deeper understanding of how lifestyle might influence gut immunometabolism is key to prevent or treat diseases.
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Affiliation(s)
- Jian Tan
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; (J.T.); (D.N.); (R.V.R.); (G.V.P.)
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Duan Ni
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; (J.T.); (D.N.); (R.V.R.); (G.V.P.)
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Rosilene V. Ribeiro
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; (J.T.); (D.N.); (R.V.R.); (G.V.P.)
- School of Life and Environmental Science, Faculty of Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Gabriela V. Pinget
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; (J.T.); (D.N.); (R.V.R.); (G.V.P.)
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Laurence Macia
- The Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia; (J.T.); (D.N.); (R.V.R.); (G.V.P.)
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia
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42
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Matthias J, Heink S, Picard F, Zeiträg J, Kolz A, Chao YY, Soll D, de Almeida GP, Glasmacher E, Jacobsen ID, Riedel T, Peters A, Floess S, Huehn J, Baumjohann D, Huber M, Korn T, Zielinski CE. Salt generates antiinflammatory Th17 cells but amplifies pathogenicity in proinflammatory cytokine microenvironments. J Clin Invest 2021; 130:4587-4600. [PMID: 32484796 DOI: 10.1172/jci137786] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 05/14/2020] [Indexed: 12/16/2022] Open
Abstract
Th cells integrate signals from their microenvironment to acquire distinct specialization programs for efficient clearance of diverse pathogens or for immunotolerance. Ionic signals have recently been demonstrated to affect T cell polarization and function. Sodium chloride (NaCl) was proposed to accumulate in peripheral tissues upon dietary intake and to promote autoimmunity via the Th17 cell axis. Here, we demonstrate that high-NaCl conditions induced a stable, pathogen-specific, antiinflammatory Th17 cell fate in human T cells in vitro. The p38/MAPK pathway, involving NFAT5 and SGK1, regulated FoxP3 and IL-17A expression in high-NaCl conditions. The NaCl-induced acquisition of an antiinflammatory Th17 cell fate was confirmed in vivo in an experimental autoimmune encephalomyelitis (EAE) mouse model, which demonstrated strongly reduced disease symptoms upon transfer of T cells polarized in high-NaCl conditions. However, NaCl was coopted to promote murine and human Th17 cell pathogenicity, if T cell stimulation occurred in a proinflammatory and TGF-β-low cytokine microenvironment. Taken together, our findings reveal a context-dependent, dichotomous role for NaCl in shaping Th17 cell pathogenicity. NaCl might therefore prove beneficial for the treatment of chronic inflammatory diseases in combination with cytokine-blocking drugs.
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Affiliation(s)
- Julia Matthias
- Institute of Virology, Technical University of Munich, Munich, Germany.,German Center for Infection Research, Partner Site Munich, Munich, Germany.,Department of Cellular Immunoregulation, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Sylvia Heink
- Klinikum rechts der Isar, Department of Experimental Neuroimmunology, Technical University of Munich, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Felix Picard
- Institute for Medical Microbiology and Hygiene, University of Marburg, Marburg, Germany
| | - Julia Zeiträg
- Institute for Immunology, Biomedical Center, Faculty of Medicine, Ludwig Maximilian University of Munich (LMU Munich), Planegg-Martinsried, Germany
| | - Anna Kolz
- Institute of Clinical Neuroimmunology, Hospital and Biomedical Center of LMU Munich, Planegg-Martinsried, Germany
| | - Ying-Yin Chao
- Institute of Virology, Technical University of Munich, Munich, Germany.,German Center for Infection Research, Partner Site Munich, Munich, Germany.,TranslaTUM, Technical University of Munich, Munich, Germany
| | - Dominik Soll
- Institute of Virology, Technical University of Munich, Munich, Germany.,German Center for Infection Research, Partner Site Munich, Munich, Germany
| | - Gustavo P de Almeida
- Institute of Virology, Technical University of Munich, Munich, Germany.,German Center for Infection Research, Partner Site Munich, Munich, Germany.,TranslaTUM, Technical University of Munich, Munich, Germany
| | - Elke Glasmacher
- Roche Innovation Center Munich, pRED, Large Molecule Research, Penzberg, Germany
| | - Ilse D Jacobsen
- Research Group Microbial Immunology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knöll Institute, Jena, Germany.,Institute of Microbiology, Friedrich Schiller University, Jena, Germany
| | - Thomas Riedel
- Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Braunschweig and German Center for Infection Research, Partner Site Hannover-Braunschweig, Hannover-Braunschweig, Germany
| | - Anneli Peters
- Institute of Clinical Neuroimmunology, Hospital and Biomedical Center of LMU Munich, Planegg-Martinsried, Germany
| | - Stefan Floess
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Jochen Huehn
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dirk Baumjohann
- Institute for Immunology, Biomedical Center, Faculty of Medicine, Ludwig Maximilian University of Munich (LMU Munich), Planegg-Martinsried, Germany
| | - Magdalena Huber
- Institute for Medical Microbiology and Hygiene, University of Marburg, Marburg, Germany
| | - Thomas Korn
- Klinikum rechts der Isar, Department of Experimental Neuroimmunology, Technical University of Munich, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Christina E Zielinski
- Institute of Virology, Technical University of Munich, Munich, Germany.,German Center for Infection Research, Partner Site Munich, Munich, Germany.,Department of Cellular Immunoregulation, Charité - Universitätsmedizin Berlin, Berlin, Germany.,TranslaTUM, Technical University of Munich, Munich, Germany
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43
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Tiyasatkulkovit W, Aksornthong S, Adulyaritthikul P, Upanan P, Wongdee K, Aeimlapa R, Teerapornpuntakit J, Rojviriya C, Panupinthu N, Charoenphandhu N. Excessive salt consumption causes systemic calcium mishandling and worsens microarchitecture and strength of long bones in rats. Sci Rep 2021; 11:1850. [PMID: 33473159 PMCID: PMC7817681 DOI: 10.1038/s41598-021-81413-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 01/06/2021] [Indexed: 02/06/2023] Open
Abstract
Excessive salt intake has been associated with the development of non-communicable diseases, including hypertension with several cardiovascular consequences. Although the detrimental effects of high salt on the skeleton have been reported, longitudinal assessment of calcium balance together with changes in bone microarchitecture and strength under salt loading has not been fully demonstrated. To address these unanswered issues, male Sprague-Dawley rats were fed normal salt diet (NSD; 0.8% NaCl) or high salt diet (HSD; 8% NaCl) for 5 months. Elevation of blood pressure, cardiac hypertrophy and glomerular deterioration were observed in HSD, thus validating the model. The balance studies were performed to monitor calcium input and output upon HSD challenge. The HSD-induced increase in calcium losses in urine and feces together with reduced fractional calcium absorption led to a decrease in calcium retention. With these calcium imbalances, we therefore examined microstructural changes of long bones of the hind limbs. Using the synchrotron radiation x-ray tomographic microscopy, we showed that trabecular structure of tibia and femur of HSD displayed a marked increase in porosity. Consistently, the volumetric micro-computed tomography also demonstrated a significant decrease in trabecular bone mineral density with expansion of endosteal perimeter in the tibia. Interestingly, bone histomorphometric analyses indicated that salt loading caused an increase in osteoclast number together with decreases in osteoblast number and osteoid volume. This uncoupling process of bone remodeling in HSD might underlie an accelerated bone loss and bone structural changes. In conclusion, long-term excessive salt consumption leads to impairment of skeletal mass and integrity possibly through negative calcium balance.
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Affiliation(s)
- Wacharaporn Tiyasatkulkovit
- grid.10223.320000 0004 1937 0490Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400 Thailand ,grid.7922.e0000 0001 0244 7875Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330 Thailand
| | - Sirion Aksornthong
- grid.10223.320000 0004 1937 0490Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400 Thailand ,grid.10223.320000 0004 1937 0490Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400 Thailand
| | - Punyanuch Adulyaritthikul
- grid.10223.320000 0004 1937 0490Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400 Thailand ,grid.10223.320000 0004 1937 0490Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400 Thailand
| | - Pornpailin Upanan
- grid.411825.b0000 0000 9482 780XFaculty of Allied Health Sciences, Burapha University, Chonburi, 20131 Thailand
| | - Kannikar Wongdee
- grid.10223.320000 0004 1937 0490Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400 Thailand ,grid.411825.b0000 0000 9482 780XFaculty of Allied Health Sciences, Burapha University, Chonburi, 20131 Thailand
| | - Ratchaneevan Aeimlapa
- grid.10223.320000 0004 1937 0490Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400 Thailand ,grid.10223.320000 0004 1937 0490Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400 Thailand
| | - Jarinthorn Teerapornpuntakit
- grid.10223.320000 0004 1937 0490Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400 Thailand ,grid.412029.c0000 0000 9211 2704Department of Physiology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000 Thailand
| | - Catleya Rojviriya
- grid.472685.aSynchrotron Light Research Institute (Public Organization), Nakhon Ratchasima, 30000 Thailand
| | - Nattapon Panupinthu
- grid.10223.320000 0004 1937 0490Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400 Thailand ,grid.10223.320000 0004 1937 0490Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400 Thailand
| | - Narattaphol Charoenphandhu
- grid.10223.320000 0004 1937 0490Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400 Thailand ,grid.10223.320000 0004 1937 0490Department of Physiology, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400 Thailand ,grid.10223.320000 0004 1937 0490Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170 Thailand ,The Academy of Science, The Royal Society of Thailand, Dusit, Bangkok, 10300 Thailand
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44
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Serizawa N, Okazaki S, Otsuka Y, Koto M, Okabe K, Ito M, Morita T, Hoashi T, Saeki H, Abe N, Mori M, Okubo Y, Yano Y, Mitsui H, Kanda N. Dietary habits in Japanese patients with palmoplantar pustulosis. J Dermatol 2021; 48:366-375. [DOI: 10.1111/1346-8138.15719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 11/13/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Naotaka Serizawa
- Department of Dermatology Nippon Medical School Chiba Hokusoh Hospital Inzai Chiba Japan
- Department of Dermatology Nippon Medical School Bunkyo‐Ku Tokyo Japan
| | - Shizuka Okazaki
- Department of Dermatology Nippon Medical School Chiba Hokusoh Hospital Inzai Chiba Japan
| | - Yohei Otsuka
- Department of Dermatology Nippon Medical School Chiba Hokusoh Hospital Inzai Chiba Japan
| | - Mototaka Koto
- Department of Dermatology Nippon Medical School Chiba Hokusoh Hospital Inzai Chiba Japan
| | - Kyochika Okabe
- Department of Dermatology Nippon Medical School Chiba Hokusoh Hospital Inzai Chiba Japan
| | - Michiko Ito
- Department of Dermatology Nippon Medical School Chiba Hokusoh Hospital Inzai Chiba Japan
| | - Takashi Morita
- Department of Dermatology Nippon Medical School Bunkyo‐Ku Tokyo Japan
| | - Toshihiko Hoashi
- Department of Dermatology Nippon Medical School Bunkyo‐Ku Tokyo Japan
| | - Hidehisa Saeki
- Department of Dermatology Nippon Medical School Bunkyo‐Ku Tokyo Japan
| | - Namiko Abe
- Department of Dermatology Nippon Medical School Bunkyo‐Ku Tokyo Japan
| | - Miho Mori
- Department of Dermatology Tokyo Medical University Shinjuku‐Ku Tokyo Japan
| | - Yukari Okubo
- Department of Dermatology Tokyo Medical University Shinjuku‐Ku Tokyo Japan
| | - Yumiko Yano
- Department of Dermatology Tokyo Medical University Shinjuku‐Ku Tokyo Japan
| | - Hiroshi Mitsui
- Department of Dermatology Tokyo Teishin Hospital Chiyoda‐Ku Tokyo Japan
| | - Naoko Kanda
- Department of Dermatology Nippon Medical School Chiba Hokusoh Hospital Inzai Chiba Japan
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45
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Batista MA, Calvo-Fortes F, Silveira-Nunes G, Camatta GC, Speziali E, Turroni S, Teixeira-Carvalho A, Martins-Filho OA, Neretti N, Maioli TU, Santos RR, Brigidi P, Franceschi C, Faria AMC. Inflammaging in Endemic Areas for Infectious Diseases. Front Immunol 2020; 11:579972. [PMID: 33262758 PMCID: PMC7688519 DOI: 10.3389/fimmu.2020.579972] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/13/2020] [Indexed: 12/20/2022] Open
Abstract
Immunosenescence is marked by a systemic process named inflammaging along with a series of defects in the immunological activity that results in poor responses to infectious agents and to vaccination. Inflammaging, a state of low-grade chronic inflammation, usually leads to chronic inflammatory diseases and frailty in the elderly. However, some elderly escape from frailty and reach advanced age free of the consequences of inflammaging. This process has been called immunological remodeling, and it is the hallmark of healthy aging as described in the studies of centenarians in Italy. The biological markers of healthy aging are still a matter of debate, and the studies on the topic have focused on inflammatory versus remodeling processes and molecules. The sub-clinical inflammatory status associated with aging might be a deleterious event for populations living in countries where chronic infectious diseases are not prevalent. Nevertheless, in other parts of the world where they are, two possibilities may occur. Inflammatory responses may have a protective effect against these infectious agents. At the same time, the long-term consequences of protective immune responses during chronic infections may result in accelerated immunosenescence in these individuals. Therefore, the biological markers of healthy aging can vary according to environmental, cultural, and geographical settings that reflect worldwide, and in a non-biased, non-westernized perspective, the changes that we experience regarding our contacts with microorganisms and the outcomes of such contacts.
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Affiliation(s)
- Marina Andrade Batista
- Programa de Pós Graduação em Nutrição e Saúde, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Fernanda Calvo-Fortes
- Programa de Pós Graduação em Nutrição e Saúde, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Gabriela Silveira-Nunes
- Departamento de Medicina, Universidade Federal de Juiz de Fora, Governador Valadares, Brazil
| | - Giovanna Caliman Camatta
- Programa de Pós Graduação em Nutrição e Saúde, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Elaine Speziali
- Instituto Rene Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil
| | - Silvia Turroni
- Unit of Microbial Ecology of Health, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | | | | | - Nicola Neretti
- Departament of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI, United States
| | - Tatiani Uceli Maioli
- Programa de Pós Graduação em Nutrição e Saúde, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rodrigo Ribeiro Santos
- Departamento de Clínica Médica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Patrizia Brigidi
- Unit of Microbial Ecology of Health, Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Claudio Franceschi
- Center for Biophysics, Bioinformatics, Biocomplexity, University of Bologna, Bologna, Italy.,Laboratory of Systems Biology of Healthy Aging, Department of Applied Mathematics, Lobachevsky University, Nizhny Novgorod, Russia
| | - Ana Maria Caetano Faria
- Programa de Pós Graduação em Nutrição e Saúde, Escola de Enfermagem, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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46
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Dietary Salt Administration Decreases Enterotoxigenic Bacteroides fragilis (ETBF)-Promoted Tumorigenesis via Inhibition of Colonic Inflammation. Int J Mol Sci 2020; 21:ijms21218034. [PMID: 33126615 PMCID: PMC7663446 DOI: 10.3390/ijms21218034] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/24/2020] [Accepted: 10/27/2020] [Indexed: 12/28/2022] Open
Abstract
Consumption of a Western-type diet has been linked to gut-microbiota-mediated colon inflammation that constitutes a risk factor for colorectal cancer. A high salt diet (HSD) exacerbates IL-17A-induced inflammation in inflammatory bowel disease and other autoimmune diseases. Enterotoxigenic Bacteroides fragilis (ETBF) is a gut commensal bacterium and reported to be a potent initiator of colitis via secretion of the Bacteroides fragilis toxin (BFT). BFT induces ectodomain cleavage of E-cadherin in colonic epithelial cells, consequently leading to cell rounding, epithelial barrier disruption, and the secretion of IL-8, which promotes tumorigenesis in mice via IL-17A-mediated inflammation. A HSD is characteristic of the Western-type diet and can exhibit inflammatory effects. However, a HSD induces effects in ETBF-induced colitis and tumorigenesis remain unknown. In this study, we investigated HSD effects in ETBF-colonized mice with azoxymethane (AOM)/dextran sulfate sodium (DSS)-induced tumorigenesis as well as ETBF colitis mice. Unexpectedly, ETBF-infected mice fed a HSD exhibited decreased weight loss and splenomegaly and reduction of colon inflammation. The HSD significantly decreased the expression of IL-17A and inducible nitric oxide synthase (iNOS) in the colonic tissues of ETBF-infected mice. In addition, serum levels of IL-17A and nitric oxide (NO) were also diminished. However, HT29/C1 colonic epithelial cells treated with sodium chloride showed no changes in BFT-induced cellular rounding and IL-8 expression. Furthermore, HSD did not affect ETBF colonization in mice. In conclusion, HSD decreased ETBF-induced tumorigenesis through suppression of IL-17A and iNOS expression in the colon. HSD also inhibited colonic polyp numbers in the ETBF-infected AOM/DSS mice. Taken together, these findings suggest that a HSD consumption inhibited ETBF-promoted colon carcinogenesis in mice, indicating that a HSD could have beneficial effects under certain conditions.
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47
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Raju P, Shashikanth N, Tsai PY, Pongkorpsakol P, Chanez-Paredes S, Steinhagen PR, Kuo WT, Singh G, Tsukita S, Turner JR. Inactivation of paracellular cation-selective claudin-2 channels attenuates immune-mediated experimental colitis in mice. J Clin Invest 2020; 130:5197-5208. [PMID: 32516134 PMCID: PMC7524482 DOI: 10.1172/jci138697] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/03/2020] [Indexed: 12/13/2022] Open
Abstract
The tight junction protein claudin-2 is upregulated in disease. Although many studies have linked intestinal barrier loss to local and systemic disease, these have relied on macromolecular probes. In vitro analyses show, however, that these probes cannot be accommodated by size- and charge-selective claudin-2 channels. We sought to define the impact of claudin-2 channels on disease. Transgenic claudin-2 overexpression or IL-13-induced claudin-2 upregulation increased intestinal small cation permeability in vivo. IL-13 did not, however, affect permeability in claudin-2-knockout mice. Claudin-2 is therefore necessary and sufficient to effect size- and charge-selective permeability increases in vivo. In chronic disease, T cell transfer colitis severity was augmented or diminished in claudin-2-transgenic or -knockout mice, respectively. We translated the in vitro observation that casein kinase-2 (CK2) inhibition blocks claudin-2 channel function to prevent acute, IL-13-induced, claudin-2-mediated permeability increases in vivo. In chronic immune-mediated colitis, CK2 inhibition attenuated progression in claudin-2-sufficient, but not claudin-2-knockout, mice, i.e., the effect was claudin-2 dependent. Paracellular flux mediated by claudin-2 channels can therefore promote immune-mediated colitis progression. Although the mechanisms by which claudin-2 channels intensify disease remain to be defined, these data suggest that claudin-2 may be an accessible target in immune-mediated disorders, including inflammatory bowel disease.
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Affiliation(s)
- Preeti Raju
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Nitesh Shashikanth
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Pei-Yun Tsai
- Department of Pathology, University of Chicago, Chicago, Illinois, USA
| | - Pawin Pongkorpsakol
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Sandra Chanez-Paredes
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Peter R. Steinhagen
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Wei-Ting Kuo
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Gurminder Singh
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
- Department of Pathology, University of Chicago, Chicago, Illinois, USA
| | - Sachiko Tsukita
- Laboratory of Biological Science, Graduate School of Frontier Biosciences and Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Jerrold R. Turner
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
- Department of Pathology, University of Chicago, Chicago, Illinois, USA
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48
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Inhibition of the activation of γδT17 cells through PPARγ-PTEN/Akt/GSK3β/NFAT pathway contributes to the anti-colitis effect of madecassic acid. Cell Death Dis 2020; 11:752. [PMID: 32929062 PMCID: PMC7490397 DOI: 10.1038/s41419-020-02969-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/20/2020] [Accepted: 08/27/2020] [Indexed: 12/15/2022]
Abstract
Type-17 immune response, mediated mainly by IL-17, plays a critical role in ulcerative colitis. Previously, we showed that madecassic acid (MA), the main active ingredient of Centella asiatica herbs for anti-colitis effect, ameliorated dextran sulfate sodium (DSS)-induced mouse colitis through reducing the level of IL-17. Here, we explore the effect of MA on the activation of γδT17 cells, an alternative source of IL-17 in colitis. In DSS-induced colitis mice, oral administration of MA decreased the number of γδT17 cells and attenuated the inflammation in the colon, and the anti-colitis effect of MA was significantly counteracted by redundant γδT17 cells, suggesting that the decrease in γδT17 cells is important for the anti-colitis effect of MA. In vitro, MA could inhibit the activation but not the proliferation of γδT17 cells at concentrations without evident cytotoxicity. Antibody microarray profiling showed that the inhibition of MA on the activation of γδT17 cells involved PPARγ–PTEN/Akt/GSK3β/NFAT signals. In γδT17 cells, MA could reduce the nuclear localization of NFATc1 through inhibiting Akt phosphorylation to promote GSK3β activation. Moreover, it was confirmed that MA inhibited the Akt/GSK3β/NFATc1 pathway and the activation of γδT17 cells through activating PPARγ to increase PTEN expression and phosphorylation. The correlation between activation of PPARγ, decrease in γδT17 cell number, and amelioration of colitis by MA was validated in mice with DSS-induced colitis. In summary, these findings reveal that MA inhibits the activation of γδT17 cells through PPARγ–PTEN/Akt/GSK3β/NFAT pathway, which contributes to the amelioration of colitis.
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Evans RDR, Antonelou M, Sathiananthamoorthy S, Rega M, Henderson S, Ceron-Gutierrez L, Barcenas-Morales G, Müller CA, Doffinger R, Walsh SB, Salama AD. Inherited salt-losing tubulopathies are associated with immunodeficiency due to impaired IL-17 responses. Nat Commun 2020; 11:4368. [PMID: 32868758 PMCID: PMC7459119 DOI: 10.1038/s41467-020-18184-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 08/10/2020] [Indexed: 02/07/2023] Open
Abstract
Increased extracellular sodium activates Th17 cells, which provide protection from bacterial and fungal infections. Whilst high salt diets have been shown to worsen autoimmune disease, the immunological consequences of clinical salt depletion are unknown. Here, we investigate immunity in patients with inherited salt-losing tubulopathies (SLT). Forty-seven genotyped SLT patients (with Bartter, Gitelman or EAST Syndromes) are recruited. Clinical features of dysregulated immunity are recorded with a standardised questionnaire and immunological investigations of IL-17 responsiveness undertaken. The effects of altering extracellular ionic concentrations on immune responses are then assessed. Patients are hypokalaemic and hypomagnesaemic, with reduced interstitial sodium stores determined by 23Na-magnetic resonance imaging. SLT patients report increased mucosal infections and allergic disease compared to age-matched controls. Aligned with their clinical phenotype, SLT patients have an increased ratio of Th2:Th17 cells. SLT Th17 and Tc17 polarisation is reduced in vitro, yet STAT1 and STAT3 phosphorylation and calcium flux following T cell activation are unaffected. In control cells, the addition of extracellular sodium (+40 mM), potassium (+2 mM), or magnesium (+1 mM) reduces Th2:Th17 ratio and augments Th17 polarisation. Our results thus show that the ionic environment typical in SLT impairs IL-17 immunity, but the intracellular pathways that mediate salt-driven Th17 polarisation are intact and in vitro IL-17 responses can be reinvigorated by increasing extracellular sodium concentration. Whether better correction of extracellular ions can rescue the immunophenotype in vivo in SLT patients remains unknown. Salt levels in culture affect the polarisation of Th17 cells, which normally protect the host from fungal and bacterial infections. Here, the authors study patients with salt-losing tubulopathies (SLT) to find that, while Th17 immunity is dampened in SLT patients, their Th17-inducing signaling pathways are intact and can be reinvigorated by exogenous salt.
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Affiliation(s)
- Rhys D R Evans
- Department of Renal Medicine, University College London, Royal Free Hospital, London, UK.
| | - Marilina Antonelou
- Department of Renal Medicine, University College London, Royal Free Hospital, London, UK
| | | | - Marilena Rega
- Institute of Nuclear Medicine, University College London, University College London Hospital, London, UK
| | - Scott Henderson
- Department of Renal Medicine, University College London, Royal Free Hospital, London, UK
| | | | | | - Christoph A Müller
- Department of Radiology, Medical Physics, Medical Center University of Freiburg, Faculty of Medicine, University of Freiburg, 79106, Freiburg, Germany.,German Consortium for Translational Cancer Research (DKTK), Partner site Freiburg, German Center for Cancer Research (DKFZ), 69120, Heidelberg, Germany
| | - Rainer Doffinger
- Department of Clinical Biochemistry and Immunology, Addenbrookes's Hospital, Cambridge, UK.,National Institute of Health Research (NIHR), Cambridge Biomedical Research Centre, Cambridge, UK
| | - Stephen B Walsh
- Department of Renal Medicine, University College London, Royal Free Hospital, London, UK.
| | - Alan D Salama
- Department of Renal Medicine, University College London, Royal Free Hospital, London, UK.
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50
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Malik M, Subedi S, Marques CNH, Mahler GJ. Bacteria Remediate the Effects of Food Additives on Intestinal Function in an in vitro Model of the Gastrointestinal Tract. Front Nutr 2020; 7:131. [PMID: 32903413 PMCID: PMC7434930 DOI: 10.3389/fnut.2020.00131] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/07/2020] [Indexed: 12/14/2022] Open
Abstract
As the site of nutrient absorption, the small intestine is continuously exposed to preservatives and additives present in consumed food. While the effects of diet on the lower gastrointestinal tract are widely studied, the effects of food additives on the small intestinal epithelium and microbiota are less clearly understood. The goal of this work was to develop and establish a physiologically relevant model of the upper gastrointestinal tract to study the complex interactions between food additives, individual bacterial species, and intestinal function. To achieve this, an in vitro model incorporating simulated digestion, human intestinal epithelial cells, and the commensal, Gram-positive Lactobacillus rhamnosus, or the opportunistic, Gram-negative Escherichia coli was developed. This model was used to assess intestinal permeability and alkaline phosphatase activity following exposure to high glucose (HG), salt, emulsifier (TWEEN 20), food (milk chocolate candies) or chemical grade titanium dioxide nanoparticles (TiO2-NP), and food (whole wheat bread) or chemical grade gluten. It was found that HG increased intestinal permeability, the presence of bacteria remediated the negative effects of HG on intestinal permeability, and a decrease in permeability and IAP activity was observed with increasing concentration of TWEEN 20 both in the presence and absence of bacteria. While L. rhamnosus influenced the activity of intestinal alkaline phosphatase and tight junction protein distribution, E. coli produced indole to reinstate intestinal permeability. The source of TiO2 and gluten led to altered impacts on permeability and IAP activity. The growth of E. coli and L. rhamnosus was found to depend on the type of food additive used. Overall, the presence of bacteria in the in vitro model influenced the effects of food additives on intestinal function, suggesting a complex association between diet and upper GI microbiota. This model provides a method to study small intestinal function and host-microbe interactions in vitro in both healthy and diseased conditions.
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Affiliation(s)
- Mridu Malik
- Department of Biomedical Engineering, Binghamton University, Binghamton, NY, United States.,Binghamton Biofilm Research Center, Binghamton University, Binghamton, NY, United States
| | - Sanjeena Subedi
- Department of Mathematical Sciences, Binghamton University, Binghamton, NY, United States
| | - Cláudia N H Marques
- Binghamton Biofilm Research Center, Binghamton University, Binghamton, NY, United States.,Department of Biological Sciences, Binghamton University, Binghamton, NY, United States
| | - Gretchen J Mahler
- Department of Biomedical Engineering, Binghamton University, Binghamton, NY, United States.,Binghamton Biofilm Research Center, Binghamton University, Binghamton, NY, United States
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