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Warmbrunn MV, Attaye I, Aron-Wisnewsky J, Rampanelli E, van der Vossen EW, Hao Y, Koopen A, Bergh PO, Stols-Gonçalves D, Mohamed N, Kemper M, Verdoes X, Wortelboer K, Davids M, Belda E, André S, Hazen S, Clement K, Groen B, van Raalte DH, Herrema H, Backhed F, Nieuwdorp M. Oral histidine affects gut microbiota and MAIT cells improving glycemic control in type 2 diabetes patients. Gut Microbes 2024; 16:2370616. [PMID: 38961712 PMCID: PMC11225920 DOI: 10.1080/19490976.2024.2370616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 06/17/2024] [Indexed: 07/05/2024] Open
Abstract
Amino acids, metabolized by host cells as well as commensal gut bacteria, have signaling effects on host metabolism. Oral supplementation of the essential amino acid histidine has been shown to exert metabolic benefits. To investigate whether dietary histidine aids glycemic control, we performed a case-controlled parallel clinical intervention study in participants with type 2 diabetes (T2D) and healthy controls. Participants received oral histidine for seven weeks. After 2 weeks of histidine supplementation, the microbiome was depleted by antibiotics to determine the microbial contribution to histidine metabolism. We assessed glycemic control, immunophenotyping of peripheral blood mononucelar cells (PBMC), DNA methylation of PBMCs and fecal gut microbiota composition. Histidine improves several markers of glycemic control, including postprandial glucose levels with a concordant increase in the proportion of MAIT cells after two weeks of histidine supplementation. The increase in MAIT cells was associated with changes in gut microbial pathways such as riboflavin biosynthesis and epigenetic changes in the amino acid transporter SLC7A5. Associations between the microbiome and MAIT cells were replicated in the MetaCardis cohort. We propose a conceptual framework for how oral histidine may affect MAIT cells via altered gut microbiota composition and SLC7A5 expression in MAIT cells directly and thereby influencing glycemic control. Future studies should focus on the role of flavin biosynthesis intermediates and SLC7A5 modulation in MAIT cells to modulate glycemic control.
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Affiliation(s)
- Moritz V. Warmbrunn
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Amsterdam Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism (AGEM) Research Institute, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Science research institute, Amsterdam, The Netherlands
| | - Ilias Attaye
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Amsterdam Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism (AGEM) Research Institute, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Science research institute, Amsterdam, The Netherlands
| | - Judith Aron-Wisnewsky
- Assistante Publique Hôpitaux de Paris, Nutrition Department, Pitié-Salpêtrière Hospital, CRNH Ile de France, Paris, France
- INSERM, Nutrition and Obesities, Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France
| | - Elena Rampanelli
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Science research institute, Amsterdam, The Netherlands
- Amsterdam Amsterdam institute for Infection and Immunity (AII), Amsterdam, The Netherlands
| | - Eduard W.J. van der Vossen
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Youling Hao
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Amsterdam Gastroenterology and Hepatology, Amsterdam Gastroenterology Endocrinology Metabolism (AGEM) Research Institute, Amsterdam, The Netherlands
- Amsterdam Amsterdam institute for Infection and Immunity (AII), Amsterdam, The Netherlands
| | - Annefleur Koopen
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Per-Olof Bergh
- Department of Molecular and Clinical Medicine/Wallenberg Laboratory, Institute of Medicine, University of Gothenburg and Sahlgrenska, Gothenburg, Sweden
| | - Daniela Stols-Gonçalves
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Nadia Mohamed
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Marleen Kemper
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Xanthe Verdoes
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Koen Wortelboer
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Amsterdam Cardiovascular Science research institute, Amsterdam, The Netherlands
- Amsterdam Amsterdam institute for Infection and Immunity (AII), Amsterdam, The Netherlands
| | - Mark Davids
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Eugeni Belda
- Assistante Publique Hôpitaux de Paris, Nutrition Department, Pitié-Salpêtrière Hospital, CRNH Ile de France, Paris, France
- INSERM, Nutrition and Obesities, Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France
| | - Sébastien André
- Assistante Publique Hôpitaux de Paris, Nutrition Department, Pitié-Salpêtrière Hospital, CRNH Ile de France, Paris, France
- INSERM, Nutrition and Obesities, Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France
| | - Stanley Hazen
- Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Karine Clement
- Assistante Publique Hôpitaux de Paris, Nutrition Department, Pitié-Salpêtrière Hospital, CRNH Ile de France, Paris, France
- INSERM, Nutrition and Obesities, Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France
| | - Bert Groen
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Daniel H. van Raalte
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Diabetes Center, Department of Internal Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Hilde Herrema
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Fredrik Backhed
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Max Nieuwdorp
- Department of Internal and Vascular Medicine, Amsterdam University Medical Centers, Amsterdam, The Netherlands
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Wei L, Chen Z, Lv Q. Mucosal-associated invariant T cells display both pathogenic and protective roles in patients with inflammatory bowel diseases. Amino Acids 2023; 55:1819-1827. [PMID: 37819474 DOI: 10.1007/s00726-023-03344-8] [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: 08/21/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023]
Abstract
An important subtype of the innate-like T lymphocytes is mucosal-associated invariant T (MAIT) cells expressing a semi-invariant T cell receptor α (TCR-α) chain. MAIT cells could be activated mainly by TCR engagement or cytokines. They have been found to have essential roles in various immune mediated. There have been growing preclinical and clinical findings that show an association between MAIT cells and the physiopathology of inflammatory bowel diseases (IBD). Of note, published reports demonstrate contradictory findings regarding the role of MAIT cells in IBD patients. A number of reports suggests a protective effect, whereas others show a pathogenic impact. The present review article aimed to explore and discuss the findings of experimental and clinical investigations evaluating the effects of MAIT cells in IBD subjects and animal models. Findings indicate that MAIT cells could exert opposite effects in the course of IBD, including an anti-inflammatory protective effect of blood circulating MAIT cells and an effector pathogenic effect of colonic MAIT cells. Another important finding is that blood levels of MAIT cells can be considered as a potential biomarker in IBD patients.
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Affiliation(s)
- Lei Wei
- Department of General Surgery, Pudong New District Gongli Hospital of Shanghai, Shanghai, 200120, China
| | - Zhigang Chen
- Department of General Surgery, Pudong New District Gongli Hospital of Shanghai, Shanghai, 200120, China
| | - Qiang Lv
- Department of General Surgery, Pudong New District Gongli Hospital of Shanghai, Shanghai, 200120, China.
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Dieme A, André S, Lapillonne H, Tounian P, Clément K, Dubern B. Characterization of lymphocyte profiles in children with syndromic obesity. Arch Pediatr 2023; 30:212-218. [PMID: 37061360 DOI: 10.1016/j.arcped.2023.02.009] [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: 11/15/2022] [Accepted: 02/12/2023] [Indexed: 04/17/2023]
Abstract
BACKGROUND Little is known about blood lymphocyte subpopulations in children with common (CO) or syndromic (SO) obesity. We aimed to describe the blood lymphocyte profiles of obese children and to search for associations with clinical phenotypes. METHODS Main blood lymphocyte subpopulations were analyzed in 159 children with CO and 34 with SO in a retrospective cohort. Phenotypes included obesity history, body mass index (BMI) Z score, percentage fat mass, and inflammatory parameters. Correlations were performed between phenotypes and circulating lymphocyte profiles. RESULTS Children with SO had a higher BMI Z score (5.5 ± 1.7 SD) than children with CO (4.7 ± 0.9 SD; p = 0.01). Significant differences were found for lymphocyte counts, including a higher percentage of CD19+ B cells (SO = 20.1 ± 6.7 vs. CO = 17.1 ± 6.1%, p = 0.03), despite lower absolute numbers (SO = 0.57 ± 0.20 vs. CO = 0.63 ± 1.9 g/L, p < 0.01). However, no difference in the lymphocyte profile was found between children with SO and those with the most severe CO (BMI Z score ≥ 4.7 SD). CONCLUSION Children with SO have altered blood lymphocyte profiles with increased prevalence of CD19+ B cells, which is closely linked to the degree of obesity severity and inflammatory markers.
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Affiliation(s)
- A Dieme
- Armand-Trousseau Children's Hospital, Pediatric Nutrition and Gastroenterology Department, Paris, France
| | - S André
- Sorbonne Université, INSERM, Nutrition and Obesities, Systemic Approaches, Nutriomics, Paris, France
| | - H Lapillonne
- Armand-Trousseau Children's Hospital, Biological Hematology Department, Paris, France
| | - P Tounian
- Armand-Trousseau Children's Hospital, Pediatric Nutrition and Gastroenterology Department, Paris, France
| | - K Clément
- Sorbonne Université, INSERM, Nutrition and Obesities, Systemic Approaches, Nutriomics, Paris, France; Hôpital Universitaire Pitié Salpêtrière, Nutrition Department, Paris, France
| | - B Dubern
- Armand-Trousseau Children's Hospital, Pediatric Nutrition and Gastroenterology Department, Paris, France; Sorbonne Université, INSERM, Nutrition and Obesities, Systemic Approaches, Nutriomics, Paris, France.
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Kedia-Mehta N, Hogan AE. MAITabolism 2 - the emerging understanding of MAIT cell metabolism and their role in metabolic disease. Front Immunol 2023; 13:1108071. [PMID: 36741413 PMCID: PMC9892190 DOI: 10.3389/fimmu.2022.1108071] [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: 11/25/2022] [Accepted: 12/19/2022] [Indexed: 01/20/2023] Open
Abstract
Mucosal associated invariant T (MAIT) cells are a population of unconventional innate T cells due to their non-MHC restriction and rapid effector responses. MAIT cells can recognise bacterial derived antigens presented on the MHC-like protein via their semi-restricted T cell receptor (TCR). Upon TCR triggering MAIT cells rapidly produce a range of effector molecules including cytokines, lytic granules and chemokines. This rapid and robust effector response makes MAIT cells critical in host responses against many bacterial pathogens. MAIT cells can also respond independent of their TCR via innate cytokines such as interleukin (IL)-18, triggering cytokine production, and are important in anti-viral responses. In addition to their protective role, MAIT cells have been implicated in numerous inflammatory diseases, including metabolic diseases often contributing to the pathogenesis via their robust cytokine production. Effector cells such as MAIT cells require significant amounts of energy to support their potent responses, and the type of nutrients available can dictate the functionality of the cell. Although data on MAIT cell metabolism is just emerging, several recent studies are starting to define the intrinsic metabolic requirements and regulators of MAIT cells. In this review we will outline our current understanding of MAIT cell metabolism, and outline their role in metabolic disease, and how disease-related changes in extrinsic metabolism can alter MAIT cell responses.
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Affiliation(s)
- Nidhi Kedia-Mehta
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co Kildare, Ireland
- Obesity Immunology Group, Education and Research Centre, St Vincent's University Hospital, University College Dublin, Dublin, Ireland
| | - Andrew E Hogan
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co Kildare, Ireland
- Obesity Immunology Group, Education and Research Centre, St Vincent's University Hospital, University College Dublin, Dublin, Ireland
- National Children's Research Centre, Dublin, Ireland
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Stahr N, Galkina EV. Immune Response at the Crossroads of Atherosclerosis and Alzheimer's Disease. Front Cardiovasc Med 2022; 9:870144. [PMID: 35872901 PMCID: PMC9298512 DOI: 10.3389/fcvm.2022.870144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 06/02/2022] [Indexed: 11/30/2022] Open
Abstract
Alzheimer's disease (AD) and cardiovascular disease (CVD) are pathologies that are characterized by common signatures of vascular dysfunction and chronic inflammation that are accelerated with aging. Importantly, epidemiological studies report an independent interaction between AD and CVD and data suggest that chronic inflammation in CVD may accelerate AD development. Atherosclerosis affects most large to medium sized arteries including those supplying the cerebral circulation. Vascular dysfunction caused by atherosclerosis results in blood brain barrier breakdown, inflammation, an impaired clearance of amyloid-beta (Aβ), and finally ends with neurovascular dysfunction. Numerous data indicate that innate and adaptive immune responses shape atherogenesis and increasing evidence suggests an implication of the immune response in AD progression. Currently, mechanisms by which these two diseases are interconnected with each other are not well-defined. In this review, we discuss the recent advances in our understanding of the intertwined role of the immune response in atherosclerosis and AD and the implications of these findings for human health.
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Xia P, Xing XD, Yang CX, Liao XJ, Liu FH, Huang HH, Zhang C, Song JW, Jiao YM, Shi M, Jiang TJ, Zhou CB, Wang XC, He Q, Zeng QL, Wang FS, Zhang JY. Activation-induced pyroptosis contributes to the loss of MAIT cells in chronic HIV-1 infected patients. Mil Med Res 2022; 9:24. [PMID: 35619176 PMCID: PMC9137088 DOI: 10.1186/s40779-022-00384-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 05/13/2022] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Mucosal-associated invariant T (MAIT) cells are systemically depleted in human immunodeficiency virus type 1 (HIV-1) infected patients and are not replenished even after successful combined antiretroviral therapy (cART). This study aimed to identify the mechanism underlying MAIT cell depletion. METHODS In the present study, we applied flow cytometry, single-cell RNA sequencing and immunohistochemical staining to evaluate the characteristics of pyroptotic MAIT cells in a total of 127 HIV-1 infected individuals, including 69 treatment-naive patients, 28 complete responders, 15 immunological non-responders, and 15 elite controllers, at the Fifth Medical Center of Chinese PLA General Hospital, Beijing, China. RESULTS Single-cell transcriptomic profiles revealed that circulating MAIT cells from HIV-1 infected subjects were highly activated, with upregulation of pyroptosis-related genes. Further analysis revealed that increased frequencies of pyroptotic MAIT cells correlated with markers of systemic T-cell activation, microbial translocation, and intestinal damage in cART-naive patients and poor CD4+ T-cell recovery in long-term cART patients. Immunohistochemical staining revealed that MAIT cells in the gut mucosa of HIV-1 infected patients exhibited a strong active gasdermin-D (GSDMD, marker of pyroptosis) signal near the cavity side, suggesting that these MAIT cells underwent active pyroptosis in the colorectal mucosa. Increased levels of the proinflammatory cytokines interleukin-12 (IL-12) and IL-18 were observed in HIV-1 infected patients. In addition, activated MAIT cells exhibited an increased pyroptotic phenotype after being triggered by HIV-1 virions, T-cell receptor signals, IL-12 plus IL-18, and combinations of these factors, in vitro. CONCLUSIONS Activation-induced MAIT cell pyroptosis contributes to the loss of MAIT cells in HIV-1 infected patients, which could potentiate disease progression and poor immune reconstitution.
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Affiliation(s)
- Peng Xia
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100039, China.,Department of Infectious Diseases and Hepatology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xu-Dong Xing
- Biomedical Pioneering Innovation Center (BIOPIC), School of Life Sciences, Peking University, Beijing, 100871, China
| | - Cui-Xian Yang
- Yunnan Infectious Disease Hospital, Kunming, 650301, China
| | - Xue-Jiao Liao
- the Third People's Hospital of Shenzhen, School of Medicine, Southern University of Science and Technology, Shenzhen, 518112, Guangzhou, China
| | - Fu-Hua Liu
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100039, China.,Department of Infectious Diseases and Hepatology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Hui-Huang Huang
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Chao Zhang
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Jin-Wen Song
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Yan-Mei Jiao
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Ming Shi
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Tian-Jun Jiang
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Chun-Bao Zhou
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Xi-Cheng Wang
- Yunnan Infectious Disease Hospital, Kunming, 650301, China
| | - Qing He
- the Third People's Hospital of Shenzhen, School of Medicine, Southern University of Science and Technology, Shenzhen, 518112, Guangzhou, China
| | - Qing-Lei Zeng
- Department of Infectious Diseases and Hepatology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
| | - Fu-Sheng Wang
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100039, China.
| | - Ji-Yuan Zhang
- Senior Department of Infectious Diseases, the Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Savaid Medical School, University of Chinese Academy of Sciences, Beijing, 100039, China.
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Haliloglu Y, Ozcan A, Erdem S, Azizoglu ZB, Bicer A, Ozarslan OY, Kilic O, Okus FZ, Demir F, Canatan H, Karakukcu M, Uludag SZ, Kutuk MS, Unal E, Eken A. Characterization of cord blood CD3 + TCRVα7.2 + CD161 high T and innate lymphoid cells in the pregnancies with gestational diabetes, morbidly adherent placenta, and pregnancy hypertension diseases. Am J Reprod Immunol 2022; 88:e13555. [PMID: 35452164 DOI: 10.1111/aji.13555] [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: 03/03/2021] [Revised: 03/07/2022] [Accepted: 04/12/2022] [Indexed: 11/28/2022] Open
Abstract
PROBLEM Although pregnant women with gestational diabetes (GD), morbidly adherent placenta (MAP), and pregnancy hypertension (pHT) diseases lead to intrauterine growth restriction (IUGR), little is known about their effect on mucosal-associated invariant T (MAIT) and innate lymphoid cells (ILC) in the umbilical cord. This study aimed to quantify and characterize MAIT cells and ILCs in the cord blood of pregnant women with GD, MAP, and pHT diseases. METHOD OF STUDY Cord blood mononuclear cells (CBMCs) were isolated by Ficoll-Paque gradient. CD3+ TCRVα7.2+ CD161high cells and ILC subsets were quantified by flow cytometry. CBMCs were stimulated with PMA/Ionomycin and Golgi Plug for 4 h and stained for IFN-γ, TNF-α, and granzyme B. The stained cells were analyzed on FACS ARIA III. RESULTS Compared with healthy pregnancies, in the cord blood of the pHT group, elevated number of lymphocytes was observed. Moreover, the absolute number of IFN-γ producing CD4+ or CD4- subsets of CD3+ TCRVα7.2+ CD161high cells as well as those producing granzyme B were significantly elevated in the pHT group compared to healthy controls suggesting increased MAIT cell activity in the pHT cord blood. Similarly, in the MAP group, the absolute number of total CD3+ TCRVα7.2+ CD161high cells, but not individual CD4+ or negative subsets, were significantly increased compared with healthy controls' cord blood. Absolute numbers of total CD3+ TCRVα7.2+ CD161high cells and their subsets were comparable in the cord blood of the GD group compared with healthy controls. Finally, the absolute number of total ILCs and ILC3 subset were significantly elevated in only pHT cord blood compared with healthy controls. Our data also reveal that IFN-γ+ or granzyme B+ cell numbers negatively correlated with fetal birth weight. CONCLUSIONS CD3+ TCRVα7.2+ CD161high cells and ILCs show unique expansion and activity in the cord blood of pregnant women with distinct diseases causing IUGR and may play roles in fetal growth restriction.
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Affiliation(s)
- Yesim Haliloglu
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Alper Ozcan
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, School of Medicine, Erciyes University, Kayseri, Turkey
| | - Serife Erdem
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Zehra Busra Azizoglu
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Ayten Bicer
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Ozcan Yeniay Ozarslan
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Omer Kilic
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Fatma Zehra Okus
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Fatma Demir
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Halit Canatan
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
| | - Musa Karakukcu
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, School of Medicine, Erciyes University, Kayseri, Turkey
| | - Semih Zeki Uludag
- Department of Obstetrics and Gynecology, School of Medicine, Erciyes University, Kayseri, Turkey
| | - M Serdar Kutuk
- Department of Obstetrics and Gynecology, School of Medicine, Bezmi Alem University, Istanbul, Turkey
| | - Ekrem Unal
- Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey.,Department of Pediatrics, Division of Pediatric Hematology and Oncology, School of Medicine, Erciyes University, Kayseri, Turkey.,Department of Blood Banking and Transfusion Medicine, Health Science Institution, Erciyes University, Kayseri, Turkey
| | - Ahmet Eken
- Department of Medical Biology, School of Medicine, Erciyes University, Kayseri, Turkey.,Betül-Ziya Eren Genome and Stem Cell Center (GENKOK), Kayseri, Turkey
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8
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Nel I, Beaudoin L, Gouda Z, Rousseau C, Soulard P, Rouland M, Bertrand L, Boitard C, Larger E, Lehuen A. MAIT cell alterations in adults with recent-onset and long-term type 1 diabetes. Diabetologia 2021; 64:2306-2321. [PMID: 34350463 PMCID: PMC8336671 DOI: 10.1007/s00125-021-05527-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/27/2021] [Indexed: 11/03/2022]
Abstract
AIMS/HYPOTHESIS Mucosal-associated invariant T (MAIT) cells are innate-like T lymphocytes expressing an αβ T cell antigen receptor that recognises the MHC-related 1 molecule. MAIT cells are altered in children at risk for and with type 1 diabetes, and mouse model studies have shown MAIT cell involvement in type 1 diabetes development. Since several studies support heterogeneity in type 1 diabetes physiopathology according to the age of individuals, we investigated whether MAIT cells were altered in adults with type 1 diabetes. METHODS MAIT cell frequency, phenotype and function were analysed by flow cytometry, using fresh peripheral blood from 21 adults with recent-onset type 1 diabetes (2-14 days after disease onset) and 47 adults with long-term disease (>2 years after diagnosis) compared with 55 healthy blood donors. We also separately analysed 17 women with long-term type 1 diabetes and an associated autoimmune disease, compared with 30 healthy women and 27 women with long-term type 1 diabetes. RESULTS MAIT cells from adults with recent-onset type 1 diabetes, compared with healthy adult donors, harboured a strongly activated phenotype indicated by an elevated CD25+ MAIT cell frequency. In adults with long-term type 1 diabetes, MAIT cells displayed an activated and exhausted phenotype characterised by high CD25 and programmed cell death 1 (PD1) expression and a decreased production of proinflammatory cytokines, IL-2, IFN-γ and TNF-α. Even though MAIT cells from these patients showed upregulated IL-17 and IL-4 production, the polyfunctionality of MAIT cells was decreased (median 4.8 vs 13.14% of MAIT cells, p < 0.001) and the frequency of MAIT cells producing none of the effector molecules analysed increased (median 34.40 vs 19.30% of MAIT cells, p < 0.01). Several MAIT cell variables correlated with HbA1c level and more particularly in patients with recent-onset type 1 diabetes. In women with long-term type 1 diabetes, MAIT cell alterations were more pronounced in those with an associated autoimmune disease than in those without another autoimmune disease. In women with long-term type 1 diabetes and an associated autoimmune disease, there was an increase in CD69 expression and a decrease in the survival B-cell lymphoma 2 (BCL-2) (p < 0.05) and CD127 (IL-7R) (p < 0.01) marker expression compared with women without a concomitant autoimmune disorder. Concerning effector molecules, TNF-α and granzyme B production by MAIT cells was decreased. CONCLUSIONS/INTERPRETATION Alterations in MAIT cell frequency, phenotype and function were more pronounced in adults with long-term type 1 diabetes compared with adults with recent-onset type 1 diabetes. There were several correlations between MAIT cell variables and clinical characteristics. Moreover, the presence of another autoimmune disease in women with long-term type 1 diabetes further exacerbated MAIT cell alterations. Our results suggest that MAIT cell alterations in adults with type 1 diabetes could be associated with two aspects of the disease: impaired glucose homeostasis; and autoimmunity.
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Affiliation(s)
- Isabelle Nel
- Institut Cochin, Inserm, CNRS, Laboratory of Excellence Inflamex, Université de Paris, Paris, France
| | - Lucie Beaudoin
- Institut Cochin, Inserm, CNRS, Laboratory of Excellence Inflamex, Université de Paris, Paris, France
| | - Zouriatou Gouda
- Institut Cochin, Inserm, CNRS, Laboratory of Excellence Inflamex, Université de Paris, Paris, France
| | - Camille Rousseau
- Institut Cochin, Inserm, CNRS, Laboratory of Excellence Inflamex, Université de Paris, Paris, France
| | - Pauline Soulard
- Institut Cochin, Inserm, CNRS, Laboratory of Excellence Inflamex, Université de Paris, Paris, France
| | - Matthieu Rouland
- Institut Cochin, Inserm, CNRS, Laboratory of Excellence Inflamex, Université de Paris, Paris, France
| | - Léo Bertrand
- Institut Cochin, Inserm, CNRS, Laboratory of Excellence Inflamex, Université de Paris, Paris, France
| | - Christian Boitard
- Institut Cochin, Inserm, CNRS, Laboratory of Excellence Inflamex, Université de Paris, Paris, France
- Diabetology Department, Cochin Hospital, AP-HP Centre - Université de Paris, Paris, France
| | - Etienne Larger
- Institut Cochin, Inserm, CNRS, Laboratory of Excellence Inflamex, Université de Paris, Paris, France
- Diabetology Department, Cochin Hospital, AP-HP Centre - Université de Paris, Paris, France
| | - Agnès Lehuen
- Institut Cochin, Inserm, CNRS, Laboratory of Excellence Inflamex, Université de Paris, Paris, France.
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9
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Zhang Y, Fan Y, He W, Han Y, Bao H, Yang R, Wang B, Kong D, Wang H. Persistent deficiency of mucosa-associated invariant T (MAIT) cells during alcohol-related liver disease. Cell Biosci 2021; 11:148. [PMID: 34321090 PMCID: PMC8320031 DOI: 10.1186/s13578-021-00664-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 07/20/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Alcohol-related liver disease (ALD) is a major cause of chronic liver diseases. Inflammatory response is a basic pathological feature of ALD. Mucosal-associated invariant T(MAIT) cells are a novel population of innate immune cells, which may be depleted in various inflammatory diseases. However, the changes of MAIT cell in ALD remains unclear. RESULTS In this study, the levels of MAIT cell were significantly decreased in patients with alcoholic fatty liver disease, alcoholic cirrhosis, and mixed cirrhosis (alcoholic + viral). Furthermore, the reduction of circulating MAIT cells was correlated with liver function in patients with cirrhosis. Functional changes among circulating MAIT cells in patients with alcoholic cirrhosis, including increased production of IL-17A and perforin, and reduced production of TNF-α. Plasma cytokine and chemokine levels were quantified using multiple immunoassays and ELISA. Serum levels of chemokine IL-8 were correlated with MAIT cell frequency in patients with alcoholic cirrhosis. Moreover, no differences were observed in the expression of CCR6, CXCR6, and PD-1 in circulating MAIT cells of patients with alcoholic cirrhosis. The MAIT cells in patients with alcoholic cirrhosis were prone to apoptosis, which was promoted by IL-12, IL-18, and IL-8. CONCLUSIONS Our findings indicate persistent MAIT cell loss during alcohol-related liver disease and suggest that MAIT cells can be promising indicator and therapeutic targets in ALD.
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Affiliation(s)
- Yujue Zhang
- Department of Gastroenterology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Yuanyuan Fan
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, Anhui, China
| | - Wei He
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Yi Han
- Department of Gastroenterology, Fuyang Hospital of Anhui Medical University, Fuyang, 236000, Anhui, P.R. China
| | - Huarui Bao
- Department of Emergency, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Renjun Yang
- Department of Gastroenterology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Bingbing Wang
- Department of Gastroenterology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Derun Kong
- Department of Gastroenterology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China. .,Department of Gastroenterology, Fuyang Hospital of Anhui Medical University, Fuyang, 236000, Anhui, P.R. China.
| | - Hua Wang
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, Anhui, China. .,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei, 230032, Anhui, China.
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10
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Veluswamy P, Wacker M, Stavridis D, Reichel T, Schmidt H, Scherner M, Wippermann J, Michels G. The SARS-CoV-2/Receptor Axis in Heart and Blood Vessels: A Crisp Update on COVID-19 Disease with Cardiovascular Complications. Viruses 2021; 13:1346. [PMID: 34372552 PMCID: PMC8310117 DOI: 10.3390/v13071346] [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: 06/02/2021] [Revised: 07/02/2021] [Accepted: 07/06/2021] [Indexed: 01/08/2023] Open
Abstract
The SARS-CoV-2 virus causing COVID-19 disease has emerged expeditiously in the world and has been declared pandemic since March 2020, by World Health Organization (WHO). The destructive effects of SARS-CoV-2 infection are increased among the patients with pre-existing chronic conditions and, in particular, this review focuses on patients with underlying cardiovascular complications. The expression pattern and potential functions of SARS-CoV-2 binding receptors and the attributes of SARS-CoV-2 virus tropism in a physio-pathological state of heart and blood vessel are precisely described. Of note, the atheroprotective role of ACE2 receptors is reviewed. A detailed description of the possible detrimental role of SARS-CoV-2 infection in terms of vascular leakage, including endothelial glycocalyx dysfunction and bradykinin 1 receptor stimulation is concisely stated. Furthermore, the potential molecular mechanisms underlying SARS-CoV-2 induced clot formation in association with host defense components, including activation of FXIIa, complements and platelets, endothelial dysfunction, immune cell responses with cytokine-mediated action are well elaborated. Moreover, a brief clinical update on patient with COVID-19 disease with underlying cardiovascular complications and those who had new onset of cardiovascular complications post-COVID-19 disease was also discussed. Taken together, this review provides an overview of the mechanistic aspects of SARS-CoV-2 induced devastating effects, in vital organs such as the heart and vessels.
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Affiliation(s)
- Priya Veluswamy
- Heart Surgery Research, Department of Cardiothoracic Surgery, Faculty of Medicine, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.W.); (D.S.); (M.S.); (J.W.)
| | - Max Wacker
- Heart Surgery Research, Department of Cardiothoracic Surgery, Faculty of Medicine, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.W.); (D.S.); (M.S.); (J.W.)
| | - Dimitrios Stavridis
- Heart Surgery Research, Department of Cardiothoracic Surgery, Faculty of Medicine, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.W.); (D.S.); (M.S.); (J.W.)
| | - Thomas Reichel
- Department of Cardiology, Diabetology and Infectiology, Klinikum Magdeburg, 39130 Magdeburg, Germany; (T.R.); (H.S.)
| | - Hendrik Schmidt
- Department of Cardiology, Diabetology and Infectiology, Klinikum Magdeburg, 39130 Magdeburg, Germany; (T.R.); (H.S.)
| | - Maximilian Scherner
- Heart Surgery Research, Department of Cardiothoracic Surgery, Faculty of Medicine, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.W.); (D.S.); (M.S.); (J.W.)
| | - Jens Wippermann
- Heart Surgery Research, Department of Cardiothoracic Surgery, Faculty of Medicine, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.W.); (D.S.); (M.S.); (J.W.)
| | - Guido Michels
- Department of Acute and Emergency Care, Sankt Antonius-Hospital Eschweiler, 52249 Eschweiler, Germany;
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11
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Fasting alters the gut microbiome reducing blood pressure and body weight in metabolic syndrome patients. Nat Commun 2021; 12:1970. [PMID: 33785752 PMCID: PMC8010079 DOI: 10.1038/s41467-021-22097-0] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 02/26/2021] [Indexed: 02/07/2023] Open
Abstract
Periods of fasting and refeeding may reduce cardiometabolic risk elevated by Western diet. Here we show in the substudy of NCT02099968, investigating the clinical parameters, the immunome and gut microbiome exploratory endpoints, that in hypertensive metabolic syndrome patients, a 5-day fast followed by a modified Dietary Approach to Stop Hypertension diet reduces systolic blood pressure, need for antihypertensive medications, body-mass index at three months post intervention compared to a modified Dietary Approach to Stop Hypertension diet alone. Fasting alters the gut microbiome, impacting bacterial taxa and gene modules associated with short-chain fatty acid production. Cross-system analyses reveal a positive correlation of circulating mucosa-associated invariant T cells, non-classical monocytes and CD4+ effector T cells with systolic blood pressure. Furthermore, regulatory T cells positively correlate with body-mass index and weight. Machine learning analysis of baseline immunome or microbiome data predicts sustained systolic blood pressure response within the fasting group, identifying CD8+ effector T cells, Th17 cells and regulatory T cells or Desulfovibrionaceae, Hydrogenoanaerobacterium, Akkermansia, and Ruminococcaceae as important contributors to the model. Here we report that the high-resolution multi-omics data highlight fasting as a promising non-pharmacological intervention for the treatment of high blood pressure in metabolic syndrome patients. Nutritional modification including fasting has been shown to reduce cardiometabolic risk linked to western diet. Here the authors show implementation of fasting resulted in alterations to the intestinal microbiota, and circulating immune cells, improving blood pressure and body weight in patients with metabolic syndrome.
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12
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Kothari H, Williams CM, McSkimming C, Drago F, Marshall MA, Garmey J, Vigneshwar M, Zunder ER, McNamara CA. Identification of human immune cell subtypes most responsive to IL-1β-induced inflammatory signaling using mass cytometry. Sci Signal 2021; 14:14/673/eabc5763. [PMID: 33688079 DOI: 10.1126/scisignal.abc5763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
IL-1β is a key mediator of the cytokine storm linked to high morbidity and mortality from COVID-19, and IL-1β blockade with anakinra and canakinumab during COVID-19 infection has entered clinical trials. Using mass cytometry of human peripheral blood mononuclear cells, we identified effector memory CD4+ T cells and CD4-CD8low/-CD161+ T cells, specifically those positive for the chemokine receptor CCR6, as the circulating immune subtypes with the greatest response to IL-1β. This response manifested as increased phosphorylation and, thus, activation of the proinflammatory transcription factor NF-κB and was also seen in other subsets, including CD11c+ myeloid dendritic cells, classical monocytes, two subsets of natural killer cells (CD16-CD56brightCD161- and CD16-CD56dimCD161+), and lineage- (Lin-) cells expressing CD161 and CD25. IL-1β also induced a rapid but less robust increase in the phosphorylation of the kinase p38 as compared to that of NF-κB in most of these immune cell subsets. Prolonged IL-1β stimulation increased the phosphorylation of the transcription factor STAT3 and to a lesser extent that of STAT1 and STAT5 across various immune cell types. IL-1β-induced production of IL-6 likely led to the activation of STAT1 and STAT3 at later time points. Interindividual heterogeneity and inhibition of STAT activation by anakinra raise the possibility that assays measuring NF-κB phosphorylation in response to IL-1β in CCR6+ T cell subtypes could identify those patients at higher risk of cytokine storm and most likely to benefit from IL-1β-neutralizing therapies.
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Affiliation(s)
- Hema Kothari
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA. .,Cardiovascular Division, Department of Medicine, University of Virginia, Charlottesville, VA 22903, USA
| | - Corey M Williams
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, USA.,Cardiovascular Research Center, University of Virginia, Charlottesville, VA 22908, USA
| | - Chantel McSkimming
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
| | - Fabrizio Drago
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
| | - Melissa A Marshall
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
| | - James Garmey
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
| | - Mythili Vigneshwar
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
| | - Eli R Zunder
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, USA
| | - Coleen A McNamara
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA.,Cardiovascular Division, Department of Medicine, University of Virginia, Charlottesville, VA 22903, USA
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13
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Cho YN, Jeong HS, Park KJ, Kim HS, Kim EH, Jin HM, Jung HJ, Ju JK, Choi SE, Kang JH, Park DJ, Kim TJ, Lee SS, Kee SJ, Park YW. Altered distribution and enhanced osteoclastogenesis of mucosal-associated invariant T cells in gouty arthritis. Rheumatology (Oxford) 2021; 59:2124-2134. [PMID: 32087015 DOI: 10.1093/rheumatology/keaa020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 01/08/2020] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE This study was designed to investigate the role of mucosal-associated invariant T (MAIT) cells in gouty arthritis (GA) and their effects on osteoclastogenesis. METHODS Patients with GA (n = 61), subjects with hyperuricaemia (n = 11) and healthy controls (n = 30) were enrolled in this study. MAIT cells, cytokines, CD69, programmed death-1 (PD-1) and lymphocyte-activation gene 3 (LAG-3) levels were measured by flow cytometry. In vitro osteoclastogenesis experiments were performed using peripheral blood mononuclear cells in the presence of M-CSF and RANK ligand. RESULTS Circulating MAIT cell levels were significantly reduced in GA patients. However, their capacities for IFN-γ, IL-17 and TNF-α production were preserved. Expression levels of CD69, PD-1 and LAG-3 in MAIT cells were found to be elevated in GA patients. In particular, CD69 expression in circulating MAIT cells was increased by stimulation with MSU crystals, suggesting that deposition of MSU crystals might contribute to MAIT cell activation. Interestingly, MAIT cells were found to be accumulated in synovial fluid and infiltrated into gouty tophus tissues within joints. Furthermore, activated MAIT cells secreted pro-resorptive cytokines (i.e. IL-6, IL-17 and TNF-α) and facilitated osteoclastogenesis. CONCLUSION This study demonstrates that circulating MAIT cells are activated and numerically deficient in GA patients. In addition, MAIT cells have the potential to migrate to inflamed tissues and induce osteoclastogenesis. These findings provide an important role of MAIT cells in the pathogenesis of inflammation and bone destruction in GA patients.
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Affiliation(s)
- Young-Nan Cho
- Department of RheumatologyChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Hae-Seong Jeong
- Department of RheumatologyChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Ki-Jeong Park
- Department of RheumatologyChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Hyung-Seok Kim
- Department of Forensic MedicineChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Eun-Hee Kim
- Department of Forensic MedicineChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Hye-Mi Jin
- Department of RheumatologyChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Hyun-Ju Jung
- Department of RheumatologyChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Jae Kyun Ju
- Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Sung-Eun Choi
- Department of RheumatologyChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Ji-Hyoun Kang
- Department of RheumatologyChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Dong-Jin Park
- Department of RheumatologyChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Tae-Jong Kim
- Department of RheumatologyChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Shin-Seok Lee
- Department of RheumatologyChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Seung-Jung Kee
- Department of Laboratory Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Yong-Wook Park
- Department of RheumatologyChonnam National University Medical School and Hospital, Gwangju, Republic of Korea
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14
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Toubal A, Lehuen A. Role of MAIT cells in metabolic diseases. Mol Immunol 2020; 130:142-147. [PMID: 33358570 DOI: 10.1016/j.molimm.2020.12.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 12/07/2020] [Indexed: 11/24/2022]
Abstract
MAIT cells are innate-like T cells that are enriched in mucosal sites and tissues including adipose tissue and liver. They play an important role in immunity against microbial pathogens. Recently, it has been reported that MAIT cells could also be important in metabolic diseases and can be involved in setting up and maintaining chronic inflammation. In this review, we give an overview of recent advances in understanding MAIT cells role in the ethology of this diseases.
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Affiliation(s)
- Amine Toubal
- Université de Paris, Institut Cochin, INSERM U1016, CNRS UMR 8104, Paris, France.
| | - Agnès Lehuen
- Université de Paris, Institut Cochin, INSERM U1016, CNRS UMR 8104, Paris, France.
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15
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Molinaro A, Bel Lassen P, Henricsson M, Wu H, Adriouch S, Belda E, Chakaroun R, Nielsen T, Bergh PO, Rouault C, André S, Marquet F, Andreelli F, Salem JE, Assmann K, Bastard JP, Forslund S, Le Chatelier E, Falony G, Pons N, Prifti E, Quinquis B, Roume H, Vieira-Silva S, Hansen TH, Pedersen HK, Lewinter C, Sønderskov NB, Køber L, Vestergaard H, Hansen T, Zucker JD, Galan P, Dumas ME, Raes J, Oppert JM, Letunic I, Nielsen J, Bork P, Ehrlich SD, Stumvoll M, Pedersen O, Aron-Wisnewsky J, Clément K, Bäckhed F. Imidazole propionate is increased in diabetes and associated with dietary patterns and altered microbial ecology. Nat Commun 2020; 11:5881. [PMID: 33208748 PMCID: PMC7676231 DOI: 10.1038/s41467-020-19589-w] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 10/22/2020] [Indexed: 12/13/2022] Open
Abstract
Microbiota-host-diet interactions contribute to the development of metabolic diseases. Imidazole propionate is a novel microbially produced metabolite from histidine, which impairs glucose metabolism. Here, we show that subjects with prediabetes and diabetes in the MetaCardis cohort from three European countries have elevated serum imidazole propionate levels. Furthermore, imidazole propionate levels were increased in subjects with low bacterial gene richness and Bacteroides 2 enterotype, which have previously been associated with obesity. The Bacteroides 2 enterotype was also associated with increased abundance of the genes involved in imidazole propionate biosynthesis from dietary histidine. Since patients and controls did not differ in their histidine dietary intake, the elevated levels of imidazole propionate in type 2 diabetes likely reflects altered microbial metabolism of histidine, rather than histidine intake per se. Thus the microbiota may contribute to type 2 diabetes by generating imidazole propionate that can modulate host inflammation and metabolism. Gut microbial metabolism of nutrients contributes to metabolic diseases, and the histidine metabolite imidazole propionate (ImP) is produced by type 2 diabetes (T2D) associated microbiome. Here the authors report that circulating ImP levels are increased in subjects with prediabetes or T2D in three European populations, and this increase associates with altered gut microbiota rather than dietary histidine.
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Affiliation(s)
- Antonio Molinaro
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine and Sahlgrenska Center for Cardiovascular and Metabolic Research, University of Gothenburg, 413 45, Gothenburg, Sweden.,Department of Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Pierre Bel Lassen
- INSERM, Nutrition and Obesities; Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France.,Assistance Publique Hôpitaux de Paris, Pitie-Salpêtrière Hospital, Nutrition department, CRNH Ile de France, Paris, France
| | - Marcus Henricsson
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine and Sahlgrenska Center for Cardiovascular and Metabolic Research, University of Gothenburg, 413 45, Gothenburg, Sweden
| | - Hao Wu
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine and Sahlgrenska Center for Cardiovascular and Metabolic Research, University of Gothenburg, 413 45, Gothenburg, Sweden
| | - Solia Adriouch
- INSERM, Nutrition and Obesities; Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France
| | - Eugeni Belda
- INSERM, Nutrition and Obesities; Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France.,Integromics Unit, Institute of Cardiometabolism and Nutrition, 75013, Paris, France
| | - Rima Chakaroun
- Medical Department III - Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Leipzig, Germany
| | - Trine Nielsen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Per-Olof Bergh
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine and Sahlgrenska Center for Cardiovascular and Metabolic Research, University of Gothenburg, 413 45, Gothenburg, Sweden
| | - Christine Rouault
- INSERM, Nutrition and Obesities; Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France
| | - Sébastien André
- INSERM, Nutrition and Obesities; Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France
| | - Florian Marquet
- INSERM, Nutrition and Obesities; Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France
| | - Fabrizio Andreelli
- INSERM, Nutrition and Obesities; Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France
| | - Joe-Elie Salem
- Assistance Publique Hôpitaux de Paris, Clinical Investigation Center Paris East, 75013, Paris, France
| | - Karen Assmann
- INSERM, Nutrition and Obesities; Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France
| | - Jean-Philippe Bastard
- Assistance Publique Hôpitaux de Paris, Biochemistry and Hormonology Department, Tenon Hospital, 75020, Paris, France
| | - Sofia Forslund
- Experimental and Clinical Research Center, A Cooperation of Charité-Universitätsmedizin and the Max-Delbrück Center, Berlin, Germany
| | | | - Gwen Falony
- Laboratory of Molecular Bacteriology, Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium.,Center for Microbiology, VIB, Leuven, Belgium
| | - Nicolas Pons
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Paris, France
| | - Edi Prifti
- Integromics Unit, Institute of Cardiometabolism and Nutrition, 75013, Paris, France.,Unité de Modélisation Mathématique et Informatique des Systèmes Complexes, UMMISCO, 93143, Bondy, France
| | - Benoit Quinquis
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Paris, France
| | - Hugo Roume
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Paris, France
| | - Sara Vieira-Silva
- Laboratory of Molecular Bacteriology, Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium.,Center for Microbiology, VIB, Leuven, Belgium
| | - Tue H Hansen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Helle Krogh Pedersen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Christian Lewinter
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Nadja B Sønderskov
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | | | - Lars Køber
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Henrik Vestergaard
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Torben Hansen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Jean-Daniel Zucker
- Unité de Modélisation Mathématique et Informatique des Systèmes Complexes, UMMISCO, 93143, Bondy, France
| | - Pilar Galan
- Sorbonne Paris Cité Epidemiology and Statistics Research Centre (CRESS), U1153 Inserm, U1125, Inra, Cnam, University of Paris 13, Nutritional Epidemiology Research Team (EREN), 93017, Bobigny, France
| | - Marc-Emmanuel Dumas
- Computational and Systems Medicine, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, SW7 2AZ, UK.,Genomic and Environmental Medicine, National Heart & Lung Institute, Faculty of Medicine, Imperial College London, London, SW3 6KY, UK
| | - Jeroen Raes
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Paris, France.,Laboratory of Molecular Bacteriology, Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium
| | - Jean-Michel Oppert
- Assistance Publique Hôpitaux de Paris, Pitie-Salpêtrière Hospital, Nutrition department, CRNH Ile de France, Paris, France
| | - Ivica Letunic
- Biobyte Solutions GmbH, Bothestr. 142, 69117, Heidelberg, Germany
| | - Jens Nielsen
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE41128, Gothenburg, Sweden
| | - Peer Bork
- Structural and Computational Biology, European Molecular Biology Laboratory, Heidelberg, Germany.,Molecular Medicine Partnership Unit, University of Heidelberg and European Molecular Biology Laboratory, Heidelberg, Germany
| | - S Dusko Ehrlich
- Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, Paris, France
| | - Michael Stumvoll
- Medical Department III - Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Leipzig, Germany
| | - Oluf Pedersen
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Judith Aron-Wisnewsky
- INSERM, Nutrition and Obesities; Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France.,Assistance Publique Hôpitaux de Paris, Pitie-Salpêtrière Hospital, Nutrition department, CRNH Ile de France, Paris, France
| | - Karine Clément
- INSERM, Nutrition and Obesities; Systemic Approaches (NutriOmics), Sorbonne Université, Paris, France. .,Assistance Publique Hôpitaux de Paris, Pitie-Salpêtrière Hospital, Nutrition department, CRNH Ile de France, Paris, France.
| | - Fredrik Bäckhed
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine and Sahlgrenska Center for Cardiovascular and Metabolic Research, University of Gothenburg, 413 45, Gothenburg, Sweden. .,Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark. .,Department of Clinical Physiology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden.
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16
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Toubal A, Kiaf B, Beaudoin L, Cagninacci L, Rhimi M, Fruchet B, da Silva J, Corbett AJ, Simoni Y, Lantz O, Rossjohn J, McCluskey J, Lesnik P, Maguin E, Lehuen A. Mucosal-associated invariant T cells promote inflammation and intestinal dysbiosis leading to metabolic dysfunction during obesity. Nat Commun 2020; 11:3755. [PMID: 32709874 PMCID: PMC7381641 DOI: 10.1038/s41467-020-17307-0] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 06/23/2020] [Indexed: 12/11/2022] Open
Abstract
Obesity is associated with low-grade chronic inflammation promoting insulin-resistance and diabetes. Gut microbiota dysbiosis is a consequence as well as a driver of obesity and diabetes. Mucosal-associated invariant T cells (MAIT) are innate-like T cells expressing a semi-invariant T cell receptor restricted to the non-classical MHC class I molecule MR1 presenting bacterial ligands. Here we show that during obesity MAIT cells promote inflammation in both adipose tissue and ileum, leading to insulin resistance and impaired glucose and lipid metabolism. MAIT cells act in adipose tissue by inducing M1 macrophage polarization in an MR1-dependent manner and in the gut by inducing microbiota dysbiosis and loss of gut integrity. Both MAIT cell-induced tissue alterations contribute to metabolic dysfunction. Treatment with MAIT cell inhibitory ligand demonstrates its potential as a strategy against inflammation, dysbiosis and metabolic disorders. Inflammation, immune cells and the host microbiota are intimately linked in the pathophysiology of obesity and diabetes. Here the authors show mucosal-associated invariant T cells fuel inflammation in the tissues and serve a function in promoting metabolic breakdown, polarising macrophage populations and inducing dysbiosis of the intestinal microbiota.
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Affiliation(s)
- Amine Toubal
- Université de Paris, Institut Cochin INSERM, CNRS F-75014, Paris, France. .,CNRS, UMR8104, Paris, France. .,Laboratoire d'Excellence INFLAMEX, Sorbonne Paris Cité, Paris, France.
| | - Badr Kiaf
- Université de Paris, Institut Cochin INSERM, CNRS F-75014, Paris, France.,CNRS, UMR8104, Paris, France.,Laboratoire d'Excellence INFLAMEX, Sorbonne Paris Cité, Paris, France
| | - Lucie Beaudoin
- Université de Paris, Institut Cochin INSERM, CNRS F-75014, Paris, France.,CNRS, UMR8104, Paris, France.,Laboratoire d'Excellence INFLAMEX, Sorbonne Paris Cité, Paris, France
| | - Lucie Cagninacci
- Université de Paris, Institut Cochin INSERM, CNRS F-75014, Paris, France.,CNRS, UMR8104, Paris, France.,Laboratoire d'Excellence INFLAMEX, Sorbonne Paris Cité, Paris, France
| | - Moez Rhimi
- INRA Micalis Institute, Jouy-en-Josas, Paris, France
| | - Blandine Fruchet
- Université de Paris, Institut Cochin INSERM, CNRS F-75014, Paris, France
| | - Jennifer da Silva
- Université de Paris, Institut Cochin INSERM, CNRS F-75014, Paris, France
| | - Alexandra J Corbett
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | - Yannick Simoni
- Université de Paris, Institut Cochin INSERM, CNRS F-75014, Paris, France.,CNRS, UMR8104, Paris, France.,Laboratoire d'Excellence INFLAMEX, Sorbonne Paris Cité, Paris, France
| | - Olivier Lantz
- INSERM U932, Institut Curie, PSL University, Paris, France
| | - Jamie Rossjohn
- ARC Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, VIC, 3800, Australia.,Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia.,Institute of Infection and Immunity, Cardiff University, School of Medicine, Heath Park, Cardiff, CF14 4XN, UK
| | - James McCluskey
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | - Philippe Lesnik
- Institute of Cardiometabolism and Nutrition, ICAN, INSERM, 1166, Paris, France
| | | | - Agnès Lehuen
- Université de Paris, Institut Cochin INSERM, CNRS F-75014, Paris, France. .,CNRS, UMR8104, Paris, France. .,Laboratoire d'Excellence INFLAMEX, Sorbonne Paris Cité, Paris, France.
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17
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Olsson LM, Poitou C, Tremaroli V, Coupaye M, Aron-Wisnewsky J, Bäckhed F, Clément K, Caesar R. Gut microbiota of obese subjects with Prader-Willi syndrome is linked to metabolic health. Gut 2020; 69:1229-1238. [PMID: 31611297 PMCID: PMC7306984 DOI: 10.1136/gutjnl-2019-319322] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/20/2019] [Accepted: 09/23/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The gut microbiota has been implicated in the aetiology of obesity and associated comorbidities. Patients with Prader-Willi syndrome (PWS) are obese but partly protected against insulin resistance. We hypothesised that the gut microbiota of PWS patients differs from that of non-genetically obese controls and correlate to metabolic health. Therefore, here we used PWS as a model to study the role of gut microbiota in the prevention of metabolic complications linked to obesity. DESIGN We conducted a case-control study with 17 adult PWS patients and 17 obese subjects matched for body fat mass index, gender and age. The subjects were metabolically characterised and faecal microbiota was profiled by 16S ribosomal RNA gene sequencing. The patients' parents were used as a non-obese control group. Stool samples from two PWS patients and two obese controls were used for faecal microbiota transplantations in germ-free mice to examine the impact of the microbiota on glucose metabolism. RESULTS The composition of the faecal microbiota in patients with PWS differed from that of obese controls, and was characterised by higher phylogenetic diversity and increased abundance of several taxa such as Akkermansia, Desulfovibrio and Archaea, and decreased abundance of Dorea. Microbial taxa prevalent in the PWS microbiota were associated with markers of insulin sensitivity. Improved insulin resistance of PWS was partly transmitted by faecal microbiota transplantations into germ-free mice. CONCLUSION The gut microbiota of PWS patients is similar to that of their non-obese parents and might play a role for the protection of PWS patients from metabolic complications.
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Affiliation(s)
- Lisa M Olsson
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Christine Poitou
- INSERM, Nutrition and obesities; systemic approaches (NutriOmics) research Unit, Sorbonne Universite, Paris, Île-de-France, France
- Assistance Publique-Hôpitaux de Paris, Reference Center for Rare Diseases (Prader-Willi Syndrome), Nutrition Department, University Hospital Pitié Salpêtrière, Paris, Île-de-France, France
| | - Valentina Tremaroli
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Muriel Coupaye
- Assistance Publique-Hôpitaux de Paris, Reference Center for Rare Diseases (Prader-Willi Syndrome), Nutrition Department, University Hospital Pitié Salpêtrière, Paris, Île-de-France, France
| | - Judith Aron-Wisnewsky
- INSERM, Nutrition and obesities; systemic approaches (NutriOmics) research Unit, Sorbonne Universite, Paris, Île-de-France, France
- Assistance Publique-Hôpitaux de Paris, Reference Center for Rare Diseases (Prader-Willi Syndrome), Nutrition Department, University Hospital Pitié Salpêtrière, Paris, Île-de-France, France
| | - Fredrik Bäckhed
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Novo Nordisk Foundation Center for Basic Metabolic Research, Section for Metabolic Receptology and Enteroendocrinology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Karine Clément
- INSERM, Nutrition and obesities; systemic approaches (NutriOmics) research Unit, Sorbonne Universite, Paris, Île-de-France, France
- Assistance Publique-Hôpitaux de Paris, Reference Center for Rare Diseases (Prader-Willi Syndrome), Nutrition Department, University Hospital Pitié Salpêtrière, Paris, Île-de-France, France
| | - Robert Caesar
- The Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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18
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Abstract
Background Metabolic diseases represent a wide category of alterations affecting metabolism. These pathologies are notably marked by inflammation that implicates the immune system. Mucosal Associated Invariant (MAI)T cells are immune cells expressing a semi-invariant TCR able to recognize bacterial and fungal vitamin B metabolites. MAIT cells can promote inflammation and are present in many organs central to metabolism, suggesting a role in the etiopathology of these diseases. Scope of the review Here, we will review what is known of the involvement of MAIT cells in metabolic pathologies in humans and mice. Major conclusions MAIT cells are severely affected, overactivated with a frequency reduction and a phenotype shift from protective to deleterious. Therefore, they might be a novel target to treat, in particular, pancreas and liver metabolic diseases.
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19
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Ju JK, Cho YN, Park KJ, Kwak HD, Jin HM, Park SY, Kim HS, Kee SJ, Park YW. Activation, Deficiency, and Reduced IFN-γ Production of Mucosal-Associated Invariant T Cells in Patients with Inflammatory Bowel Disease. J Innate Immun 2020; 12:422-434. [PMID: 32535589 DOI: 10.1159/000507931] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 03/30/2020] [Indexed: 12/19/2022] Open
Abstract
Mucosal-associated invariant T (MAIT) cells are innate-like T cells that can activate either in response to T-cell receptor (TCR) engagement or through activating cytokines and play an important role in autoimmune disorders. The study examined the level and function of MAIT cells in patients with inflammatory bowel disease (IBD). Circulating MAIT cell levels were significantly reduced in IBD patients. This MAIT cell deficiency was correlated with IBD disease activity grades, hemoglobin, and CRP. IFN-γ production of circulating MAIT cells in response to both MHC class 1b-like related protein (MR1)-dependent and -independent stimulations was decreased in IBD patients, which was partially associated with reduced activation of nuclear factor of activated T cells 1 (NFAT1) transcription factor, a main regulator of IFN-γ production. Expression levels of CD69, programmed death-1 (PD-1), and annexin V in MAIT cells were elevated in IBD patients. CCL20, CXCL10, CXCL16, and CCL25 were expressed higher in inflamed intestinal tissues than in noninflamed tissues. This study demonstrates that circulating MAIT cells are activated and numerically and functionally deficient in IBD patients. Furthermore, activated MAIT cells have the potential to migrate to inflamed tissues. These findings suggest an important role of MAIT cells in mucosal immunity in IBD.
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Affiliation(s)
- Jae Kyun Ju
- Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Young-Nan Cho
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Ki-Jeong Park
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Han Deok Kwak
- Department of Surgery, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Hye-Mi Jin
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Seon-Young Park
- Department of Gastroenterology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Hyun Soo Kim
- Department of Gastroenterology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Seung-Jung Kee
- Department of Laboratory Medicine, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea
| | - Yong-Wook Park
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju, Republic of Korea,
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20
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Human MAIT cell cytolytic effector proteins synergize to overcome carbapenem resistance in Escherichia coli. PLoS Biol 2020; 18:e3000644. [PMID: 32511236 PMCID: PMC7302869 DOI: 10.1371/journal.pbio.3000644] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 06/18/2020] [Accepted: 05/18/2020] [Indexed: 02/07/2023] Open
Abstract
Mucosa-associated invariant T (MAIT) cells are abundant antimicrobial T cells in humans and recognize antigens derived from the microbial riboflavin biosynthetic pathway presented by the MHC-Ib-related protein (MR1). However, the mechanisms responsible for MAIT cell antimicrobial activity are not fully understood, and the efficacy of these mechanisms against antibiotic resistant bacteria has not been explored. Here, we show that MAIT cells mediate MR1-restricted antimicrobial activity against Escherichia coli clinical strains in a manner dependent on the activity of cytolytic proteins but independent of production of pro-inflammatory cytokines or induction of apoptosis in infected cells. The combined action of the pore-forming antimicrobial protein granulysin and the serine protease granzyme B released in response to T cell receptor (TCR)-mediated recognition of MR1-presented antigen is essential to mediate control against both cell-associated and free-living, extracellular forms of E. coli. Furthermore, MAIT cell-mediated bacterial control extends to multidrug-resistant E. coli primary clinical isolates additionally resistant to carbapenems, a class of last resort antibiotics. Notably, high levels of granulysin and granzyme B in the MAIT cell secretomes directly damage bacterial cells by increasing their permeability, rendering initially resistant E. coli susceptible to the bactericidal activity of carbapenems. These findings define the role of cytolytic effector proteins in MAIT cell-mediated antimicrobial activity and indicate that granulysin and granzyme B synergize to restore carbapenem bactericidal activity and overcome carbapenem resistance in E. coli. Mucosa-associated invariant T (MAIT) cells are abundant antimicrobial T cells in humans that recognize bacterial metabolites. This study shows that MAIT cells exert potent antimicrobial activity against both cell-associated and extracellular forms of Escherichia coli, including strains that are resistant to the last resort antibiotics carbapenems.
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21
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Statin therapy is associated with lower prevalence of gut microbiota dysbiosis. Nature 2020; 581:310-315. [PMID: 32433607 DOI: 10.1038/s41586-020-2269-x] [Citation(s) in RCA: 242] [Impact Index Per Article: 60.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 04/03/2020] [Indexed: 02/07/2023]
Abstract
Microbiome community typing analyses have recently identified the Bacteroides2 (Bact2) enterotype, an intestinal microbiota configuration that is associated with systemic inflammation and has a high prevalence in loose stools in humans1,2. Bact2 is characterized by a high proportion of Bacteroides, a low proportion of Faecalibacterium and low microbial cell densities1,2, and its prevalence varies from 13% in a general population cohort to as high as 78% in patients with inflammatory bowel disease2. Reported changes in stool consistency3 and inflammation status4 during the progression towards obesity and metabolic comorbidities led us to propose that these developments might similarly correlate with an increased prevalence of the potentially dysbiotic Bact2 enterotype. Here, by exploring obesity-associated microbiota alterations in the quantitative faecal metagenomes of the cross-sectional MetaCardis Body Mass Index Spectrum cohort (n = 888), we identify statin therapy as a key covariate of microbiome diversification. By focusing on a subcohort of participants that are not medicated with statins, we find that the prevalence of Bact2 correlates with body mass index, increasing from 3.90% in lean or overweight participants to 17.73% in obese participants. Systemic inflammation levels in Bact2-enterotyped individuals are higher than predicted on the basis of their obesity status, indicative of Bact2 as a dysbiotic microbiome constellation. We also observe that obesity-associated microbiota dysbiosis is negatively associated with statin treatment, resulting in a lower Bact2 prevalence of 5.88% in statin-medicated obese participants. This finding is validated in both the accompanying MetaCardis cardiovascular disease dataset (n = 282) and the independent Flemish Gut Flora Project population cohort (n = 2,345). The potential benefits of statins in this context will require further evaluation in a prospective clinical trial to ascertain whether the effect is reproducible in a randomized population and before considering their application as microbiota-modulating therapeutics.
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22
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Abstract
Mucosal-associated invariant T (MAIT) cells have been attracting increasing attention over the last few years as a potent unconventional T cell subset. Three factors largely account for this emerging interest. Firstly, these cells are abundant in humans, both in circulation and especially in some tissues such as the liver. Secondly is the discovery of a ligand that has uncovered their microbial targets, and also allowed for the development of tools to accurately track the cells in both humans and mice. Finally, it appears that the cells not only have a diverse range of functions but also are sensitive to a range of inflammatory triggers that can enhance or even bypass T cell receptor–mediated signals—substantially broadening their likely impact in health and disease. In this review we discuss how MAIT cells display antimicrobial, homeostatic, and amplifier roles in vivo, and how this may lead to protection and potentially pathology.
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Affiliation(s)
- Nicholas M. Provine
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Headington, Oxford OX3 9DU, United Kingdom
| | - Paul Klenerman
- Translational Gastroenterology Unit, Nuffield Department of Medicine, University of Oxford, Headington, Oxford OX3 9DU, United Kingdom
- NIHR Biomedical Research Centre, John Radcliffe Hospital, Headington, Oxford OX3 9DU, United Kingdom
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23
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Qian L, Zhang L, Wu L, Zhang J, Fang Q, Hou X, Gao Q, Li H, Jia W. Elevated Serum Level of Cytokeratin 18 M65ED Is an Independent Indicator of Cardiometabolic Disorders. J Diabetes Res 2020; 2020:5198359. [PMID: 32337295 PMCID: PMC7150704 DOI: 10.1155/2020/5198359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 02/17/2020] [Accepted: 02/28/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Recent studies have suggested that cell death might be involved in the pathophysiology of metabolic disorders. The cytokeratin 18 (CK18) fragment, as a cell death marker, plays an important role in nonalcoholic fatty liver disease (NAFLD). However, only a limited number of studies have found elevated serum levels of CK18 in patients with type 2 diabetes. Moreover, no studies have been conducted yet to investigate the role of CK18 in hypertension or dyslipidemia. In particular, CK18 M65ED is a more sensitive marker of cell death, and its role in cardiometabolic disorders has not been revealed yet. METHODS A total of 588 subjects were enrolled from the local communities of Shanghai. Serum CK18 M65ED were determined using the enzyme-linked immunosorbent assay. A cardiometabolic disorder was identified by the presence of at least one of the components including overweight or central obesity, diabetes, dyslipidemia, and hypertension. RESULTS Subjects with cardiometabolic disorders exhibited significantly higher serum levels of CK18 M65ED than those without cardiometabolic disorders (197.36 (121.13-354.50) U/L versus 83.85 (52.80-153.75) U/L, respectively, P < 0.001). Increased serum CK18 M65ED quartiles were associated with the increased prevalence of cardiometabolic disorders and its components (P < 0.001 for all components). Multiple stepwise regression analysis also revealed that diastolic blood pressure, glycated hemoglobin A1c, alanine transaminase, and high-density lipoprotein cholesterol were independently correlated with serum CK18 M65ED levels (all P < 0.01). In addition, logistic regression analysis showed that the serum CK18 M65ED levels were positively correlated with cardiometabolic disorders and in an independent manner. Further, CK18 M65ED was revealed to be an indicator of cardiometabolic disorders in a NAFLD-independent manner. CONCLUSIONS Elevated levels of CK18 M65ED, a sensitive cell death marker, were independently and positively correlated with cardiometabolic disorders, even after the adjustment for the presence of NAFLD and other cardiovascular risk factors.
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Affiliation(s)
- Lingling Qian
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center of Diabetes, Shanghai 200233, China
- Department of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Lei Zhang
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center of Diabetes, Shanghai 200233, China
| | - Liang Wu
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center of Diabetes, Shanghai 200233, China
| | - Jing Zhang
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center of Diabetes, Shanghai 200233, China
| | - Qichen Fang
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center of Diabetes, Shanghai 200233, China
| | - Xuhong Hou
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center of Diabetes, Shanghai 200233, China
| | - Qiongmei Gao
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center of Diabetes, Shanghai 200233, China
| | - Huating Li
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center of Diabetes, Shanghai 200233, China
| | - Weiping Jia
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Center of Diabetes, Shanghai 200233, China
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24
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Abstract
Mucosal-associated invariant T (MAIT) cells are unique innate-like T cells that bridge innate and adaptive immunity. They are activated by conserved bacterial ligands derived from vitamin B biosynthesis and have important roles in defence against bacterial and viral infections. However, they can also have various deleterious and protective functions in autoimmune, inflammatory and metabolic diseases. MAIT cell involvement in a large spectrum of pathological conditions makes them attractive targets for potential therapeutic approaches.
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25
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Abstract
Mucosal-associated invariant T (MAIT) cells are a newly described subset of T cells that are found in the blood and are enriched in many tissues, particularly in the liver. MAIT cells express a semi-invariant T cell receptor restricted by the MHC class I-related (MR1) molecule. MAIT cells are activated in a MR1-dependent manner in response to microbial-derived riboflavin metabolites which leads to rapid effector functions, but they can also be activated in a MR1-independent manner by cytokines and viruses. The use of mice models and MR1 tetramers, among other recent methodological advances, have provided more insight into the development, mode of activation, characterization in different diseases and tissues of MAIT cells. In this chapter, we provide an overview of MAIT cells and yet remaining questions about their potential therapeutic role.
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26
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Th17 and MAIT cell mediated inflammation in antipsychotic free schizophrenia patients. Schizophr Res 2019; 212:47-53. [PMID: 31439420 DOI: 10.1016/j.schres.2019.08.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 07/29/2019] [Accepted: 08/05/2019] [Indexed: 12/11/2022]
Abstract
The immune hypothesis of schizophrenia has gained significant popularity in recent years in schizophrenia research. Evidence suggests that the peripheral immune system communicates with central nervous system and the effect propagates through microglial and lymphocyte crosstalk, especially during neuro-inflammation. Although, there is previous literature indicating changes in lymphocyte population in schizophrenia, detailed studies with respect to T and B cells are scarce. Mucosal associated invariant T (MAIT) cells are functionally associated with the gut microbiome. The gut microbiome has been implicated in the pathogenesis of schizophrenia. However, there is no information on the frequency of MAIT cells in schizophrenia. Hence, we investigated changes in proportions of T cells, B cells and MAIT cells in peripheral blood mononuclear cells derived from antipsychotic-free patients with schizophrenia in comparison to healthy controls. In line with earlier reports, we noted perturbations in Th17 cells. This study for the first time reports changes in frequencies of MAIT cells in a homogenous population of antipsychotic-free patients with schizophrenia. These changes, though not common across all patients nevertheless point to the fact that inflammation is prevalent in a significant subset of schizophrenia cases.
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27
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Godfrey DI, Koay HF, McCluskey J, Gherardin NA. The biology and functional importance of MAIT cells. Nat Immunol 2019; 20:1110-1128. [PMID: 31406380 DOI: 10.1038/s41590-019-0444-8] [Citation(s) in RCA: 296] [Impact Index Per Article: 59.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 06/11/2019] [Indexed: 01/25/2023]
Abstract
In recent years, a population of unconventional T cells called 'mucosal-associated invariant T cells' (MAIT cells) has captured the attention of immunologists and clinicians due to their abundance in humans, their involvement in a broad range of infectious and non-infectious diseases and their unusual specificity for microbial riboflavin-derivative antigens presented by the major histocompatibility complex (MHC) class I-like protein MR1. MAIT cells use a limited T cell antigen receptor (TCR) repertoire with public antigen specificities that are conserved across species. They can be activated by TCR-dependent and TCR-independent mechanisms and exhibit rapid, innate-like effector responses. Here we review evidence showing that MAIT cells are a key component of the immune system and discuss their basic biology, development, role in disease and immunotherapeutic potential.
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Affiliation(s)
- Dale I Godfrey
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria, Australia.
- Australian Research Council Centre of Excellence for Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia.
| | - Hui-Fern Koay
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria, Australia
- Australian Research Council Centre of Excellence for Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
| | - James McCluskey
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria, Australia
| | - Nicholas A Gherardin
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, Victoria, Australia
- Australian Research Council Centre of Excellence for Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
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28
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Kelly J, Minoda Y, Meredith T, Cameron G, Philipp MS, Pellicci DG, Corbett AJ, Kurts C, Gray DH, Godfrey DI, Kannourakis G, Berzins SP. Chronically stimulated human MAIT cells are unexpectedly potent IL-13 producers. Immunol Cell Biol 2019; 97:689-699. [PMID: 31323167 PMCID: PMC6790710 DOI: 10.1111/imcb.12281] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 06/24/2019] [Accepted: 06/26/2019] [Indexed: 12/11/2022]
Abstract
Mucosal‐associated invariant T (MAIT) cells are unconventional T cells that recognize antigens derived from riboflavin biosynthesis. In addition to anti‐microbial functions, human MAIT cells are associated with cancers, autoimmunity, allergies and inflammatory disorders, although their role is poorly understood. Activated MAIT cells are well known for their rapid release of Th1 and Th17 cytokines, but we have discovered that chronic stimulation can also lead to potent interleukin (IL)‐13 expression. We used RNA‐seq and qRT‐PCR to demonstrate high expression of the IL‐13 gene in chronically stimulated MAIT cells, and directly identify IL‐13 using intracellular flow cytometry and multiplex bead analysis of MAIT cell cultures. This unexpected finding has important implications for IL‐13‐dependent diseases, such as colorectal cancer (CRC), that occur in mucosal areas where MAIT cells are abundant. We identify MAIT cells near CRC tumors and show that these areas and precancerous polyps express high levels of the IL‐13 receptor, which promotes tumor progression and metastasis. Our data suggest that MAIT cells have a more complicated role in CRC than currently realized and that they represent a promising new target for immunotherapies where IL‐13 can be a critical factor.
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Affiliation(s)
- Jason Kelly
- Fiona Elsey Cancer Research Institute, Ballarat, VIC, Australia.,Federation University Australia, Ballarat, VIC, Australia
| | - Yosuke Minoda
- Fiona Elsey Cancer Research Institute, Ballarat, VIC, Australia.,Federation University Australia, Ballarat, VIC, Australia
| | - Tobias Meredith
- Fiona Elsey Cancer Research Institute, Ballarat, VIC, Australia.,Federation University Australia, Ballarat, VIC, Australia
| | - Garth Cameron
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | - Marie-Sophie Philipp
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | - Daniel G Pellicci
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia.,The Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Alexandra J Corbett
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | | | - Daniel Hd Gray
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia.,Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
| | - Dale I Godfrey
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia.,Australian Research Council Centre of Excellence for Advanced Molecular Imaging, University of Melbourne, Melbourne, VIC, Australia
| | - George Kannourakis
- Fiona Elsey Cancer Research Institute, Ballarat, VIC, Australia.,Federation University Australia, Ballarat, VIC, Australia
| | - Stuart P Berzins
- Fiona Elsey Cancer Research Institute, Ballarat, VIC, Australia.,Federation University Australia, Ballarat, VIC, Australia.,Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
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29
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Melo AM, O'Brien AM, Phelan JJ, Kennedy SA, Wood NAW, Veerapen N, Besra GS, Clarke NE, Foley EK, Ravi A, MacCarthy F, O'Toole D, Ravi N, Reynolds JV, Conroy MJ, Hogan AE, O'Sullivan J, Dunne MR. Mucosal-Associated Invariant T Cells Display Diminished Effector Capacity in Oesophageal Adenocarcinoma. Front Immunol 2019; 10:1580. [PMID: 31354725 PMCID: PMC6635552 DOI: 10.3389/fimmu.2019.01580] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 06/25/2019] [Indexed: 12/12/2022] Open
Abstract
Oesophageal adenocarcinoma (OAC) is an aggressive malignancy with poor prognosis, and incidence is increasing rapidly in the Western world. Mucosal-associated invariant T (MAIT) cells recognize bacterial metabolites and kill infected cells, yet their role in OAC is unknown. We aimed to elucidate the role of MAIT cells during cancer development by characterizing the frequency, phenotype, and function of MAIT cells in human blood and tissues, from OAC and its pre-malignant inflammatory condition Barrett's oesophagus (BO). Blood and tissues were phenotyped by flow cytometry and conditioned media from explanted tissue was used to model the effects of the tumor microenvironment on MAIT cell function. Associations were assessed between MAIT cell frequency, circulating inflammatory markers, and clinical parameters to elucidate the role of MAIT cells in inflammation driven cancer. MAIT cells were decreased in BO and OAC blood compared to healthy controls, but were increased in oesophageal tissues, compared to BO-adjacent tissue, and remained detectable after neo-adjuvant treatment. MAIT cells in tumors expressed CD8, PD-1, and NKG2A but lower NKG2D than BO cohorts. MAIT cells produced less IFN-γ and TNF-α in the presence of tumor-conditioned media. OAC cell line viability was reduced upon exposure to expanded MAIT cells. Serum levels of chemokine IP-10 were inversely correlated with MAIT cell frequency in both tumors and blood. MAIT cells were higher in the tumors of node-negative patients, but were not significantly associated with other clinical parameters. This study demonstrates that OAC tumors are infiltrated by MAIT cells, a type of CD8 T cell featuring immune checkpoint expression and cytotoxic potential. These findings may have implications for immunotherapy and immune scoring approaches.
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Affiliation(s)
- Ashanty M Melo
- Department of Surgery, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Aisling M O'Brien
- Childhood Obesity Research Group, National Children's Research Centre, Dublin, Ireland
| | - James J Phelan
- Department of Surgery, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Susan A Kennedy
- Department of Surgery, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Nicole A W Wood
- Childhood Obesity Research Group, National Children's Research Centre, Dublin, Ireland
| | - Natacha Veerapen
- School of Biosciences, University of Birmingham, Birmingham, United Kingdom
| | - Gurdyal S Besra
- School of Biosciences, University of Birmingham, Birmingham, United Kingdom
| | - Niamh E Clarke
- Department of Surgery, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Emma K Foley
- Department of Surgery, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Akshaya Ravi
- Department of Surgery, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Finbar MacCarthy
- Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Dermot O'Toole
- Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
| | - Narayamasami Ravi
- Department of Surgery, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland.,National Oesophageal and Gastric Centre, St. James's Hospital, Dublin, Ireland
| | - John V Reynolds
- Department of Surgery, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland.,National Oesophageal and Gastric Centre, St. James's Hospital, Dublin, Ireland
| | - Melissa J Conroy
- Department of Surgery, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Andrew E Hogan
- Childhood Obesity Research Group, National Children's Research Centre, Dublin, Ireland.,Obesity Immunology Research Group, Human Health Institute, Maynooth University, Co Kildare, Ireland
| | - Jacintha O'Sullivan
- Department of Surgery, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
| | - Margaret R Dunne
- Department of Surgery, Trinity Translational Medicine Institute, St. James's Hospital, Dublin, Ireland
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30
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Debédat J, Amouyal C, Aron-Wisnewsky J, Clément K. Impact of bariatric surgery on type 2 diabetes: contribution of inflammation and gut microbiome? Semin Immunopathol 2019; 41:461-475. [DOI: 10.1007/s00281-019-00738-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 03/15/2019] [Indexed: 02/06/2023]
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31
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Van Herck MA, Weyler J, Kwanten WJ, Dirinck EL, De Winter BY, Francque SM, Vonghia L. The Differential Roles of T Cells in Non-alcoholic Fatty Liver Disease and Obesity. Front Immunol 2019; 10:82. [PMID: 30787925 PMCID: PMC6372559 DOI: 10.3389/fimmu.2019.00082] [Citation(s) in RCA: 145] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 01/11/2019] [Indexed: 12/15/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) constitutes a spectrum of disease states characterized by hepatic steatosis and is closely associated to obesity and the metabolic syndrome. In non-alcoholic steatohepatitis (NASH), additionally, inflammatory changes and hepatocellular damage are present, representing a more severe condition, for which the treatment is an unmet medical need. Pathophysiologically, the immune system is one of the main drivers of NAFLD progression and other obesity-related comorbidities, and both the innate and adaptive immune system are involved. T cells form the cellular component of the adaptive immune system and consist of multiple differentially active subsets, i.e., T helper (Th) cells, regulatory T (Treg) cells, and cytotoxic T (Tc) cells, as well as several innate T-cell subsets. This review focuses on the role of these T-cell subsets in the pathogenesis of NAFLD, as well as the association with obesity and type 2 diabetes mellitus, reviewing the available evidence from both animal and human studies. Briefly, Th1, Th2, Th17, and Th22 cells seem to have an attenuating effect on adiposity. Th2, Th22, and Treg cells seem to decrease insulin resistance, whereas Th1, Th17, and Tc cells have an aggravating effect. Concerning NAFLD, both Th22 and Treg cells appear to have an overall tempering effect, whereas Th17 and Tc cells seem to induce more liver damage and fibrosis progression. The evidence regarding the role of the innate T-cell subsets is more controversial and warrants further exploration.
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Affiliation(s)
- Mikhaïl A Van Herck
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology and Hepatology, University of Antwerp, Antwerp, Belgium.,Department of Gastroenterology and Hepatology, Antwerp University Hospital, Antwerp, Belgium
| | - Jonas Weyler
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology and Hepatology, University of Antwerp, Antwerp, Belgium.,Department of Gastroenterology and Hepatology, Antwerp University Hospital, Antwerp, Belgium
| | - Wilhelmus J Kwanten
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology and Hepatology, University of Antwerp, Antwerp, Belgium.,Department of Gastroenterology and Hepatology, Antwerp University Hospital, Antwerp, Belgium
| | - Eveline L Dirinck
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology and Hepatology, University of Antwerp, Antwerp, Belgium.,Department of Endocrinology, Diabetology and Metabolism, Antwerp University Hospital, Antwerp, Belgium
| | - Benedicte Y De Winter
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology and Hepatology, University of Antwerp, Antwerp, Belgium
| | - Sven M Francque
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology and Hepatology, University of Antwerp, Antwerp, Belgium.,Department of Gastroenterology and Hepatology, Antwerp University Hospital, Antwerp, Belgium
| | - Luisa Vonghia
- Laboratory of Experimental Medicine and Pediatrics, Division of Gastroenterology and Hepatology, University of Antwerp, Antwerp, Belgium.,Department of Gastroenterology and Hepatology, Antwerp University Hospital, Antwerp, Belgium
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