1
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Köhler A, Geiselhöringer AL, Kolland D, Kreft L, Wichmann N, Hils M, Pasztoi M, Zurkowski E, Vogt J, Kübelbeck T, Biedermann T, Schmitz I, Hansen W, Kramer D, Gaida MM, Schmidt-Weber CB, Hoevelmeyer N, Ohnmacht C. The atypical IκB family member Bcl3 determines differentiation and fate of intestinal RORγt + regulatory T-cell subsets. Mucosal Immunol 2024; 17:673-691. [PMID: 38663461 DOI: 10.1016/j.mucimm.2024.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 04/07/2024] [Accepted: 04/16/2024] [Indexed: 05/09/2024]
Abstract
Peripherally-induced regulatory T cells (pTregs) expressing the retinoic acid receptor-related orphan-receptor gamma t (RORγt) are indispensable for intestinal immune homeostasis. Nuclear factor kappa family members regulate the differentiation of thymic Tregs and promote their survival in the periphery. However, the Treg intrinsic molecular mechanisms controlling the size of the pTregs in the intestine and associated lymphoid organs remain unclear. Here, we provide direct evidence that B-cell lymphoma 3 (Bcl3) limits the development of pTregs in a T cell-intrinsic manner. Moreover, the absence of Bcl3 allowed for the formation of an unusual intestinal Treg population co-expressing the transcription factors Helios and RORγt. The expanded RORγt+ Treg populations in the absence of Bcl3 displayed an activated phenotype and secreted high levels of the anti-inflammatory cytokines interleukin (IL)-10 and transforming growth factor beta. They were fully capable of suppressing effector T cells in a transfer colitis model despite an intrinsic bias to trans-differentiate toward T helper 17-like cells. Finally, we provide a Bcl3-dependent gene signature in pTregs including altered responsiveness to the cytokines IL-2, IL-6, and tumor necrosis factor alpha. Our results demonstrate that Bcl3 acts as a molecular switch to limit the expansion of different intestinal Treg subsets and may thus serve as a novel therapeutic target for inflammatory bowel disease by restoring intestinal immune tolerance.
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Affiliation(s)
- Amelie Köhler
- Center of Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, Germany
| | - Anna-Lena Geiselhöringer
- Center of Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, Germany
| | - Daphne Kolland
- Center of Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, Germany
| | - Luisa Kreft
- Center of Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, Germany
| | - Nina Wichmann
- Center of Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, Germany
| | - Miriam Hils
- Department of Dermatology and Allergy Biederstein, School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Maria Pasztoi
- Center of Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, Germany
| | - Elena Zurkowski
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Johannes Vogt
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Tanja Kübelbeck
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Tilo Biedermann
- Department of Dermatology and Allergy Biederstein, School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Ingo Schmitz
- Department of Molecular Immunology, Ruhr University Bochum, Bochum, Germany
| | - Wiebke Hansen
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Daniela Kramer
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Matthias M Gaida
- Institute of Pathology, University Medical Center Mainz, JGU-Mainz, Mainz, Germany; TRON, Translational Oncology at the University Medical Center, JGU-Mainz, Mainz, Germany; Research Center for Immunotherapy, University Medical Center Mainz, JGU-Mainz, Mainz, Germany
| | - Carsten B Schmidt-Weber
- Center of Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, Germany; Member of the German Center of Lung Research (DZL), Partner Site Munich, Munich, Germany
| | - Nadine Hoevelmeyer
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Caspar Ohnmacht
- Center of Allergy and Environment (ZAUM), Technical University and Helmholtz Center Munich, Germany.
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2
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Li Y, Ning X, Zhao Z, He X, Xue Q, Zhou M, Li W, Li M. Core fucosylation of maternal milk N-glycans imparts early-life immune tolerance through gut microbiota-dependent regulation in RORγt + Treg cells. Food Funct 2024; 15:4140-4153. [PMID: 38445991 DOI: 10.1039/d4fo00230j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Milk glycans play key roles in shaping and maintaining a healthy infant gut microbiota. Core fucosylation catalyzed by fucosyltransferase (Fut8) is the major glycosylation pattern on human milk N-glycan, which was crucial for promoting the colonization and dominant growth of Bifidobacterium and Lactobacillus spp. in neonates. However, the influence of core-fucose in breast milk on the establishment of early-life immune tolerance remains poorly characterized. In this study, we found that the deficiency of core-fucose in the milk of maternal mice caused by Fut8 gene heterozygosity (Fut8+/-) resulted in poor immune tolerance towards the ovalbumin (OVA) challenge, accompanied by a reduced proportion of intestinal RORγt+ Treg cells and the abundance of Lactobacillus spp., especially L. reuteri and L. johnsonii, in their breast-fed neonates. The administration of the L. reuteri and L. johnsonii mixture to neonatal mice compromised the OVA-induced allergy and up-regulated the intestinal RORγt+ Treg cell proportions. However, Lactobacillus mixture supplementation did not alleviate allergic responses in RORγt+ Treg cell-deficient mice caused by Rorc gene heterozygosity (Rorc+/-) post OVA challenge, indicating that the intervention effects depend on the RORγt+ Treg cells. Interestingly, instead of L. reuteri and L. johnsonii, we found that the relative abundance of another Lactobacillus spp., L. murinus, in the gut of the offspring mice was significantly promoted by intervention, which showed enhancing effects on the proliferation of splenic and intestinal RORγt+ Treg cells in in vitro studies. The above results indicate that core fucosylation of breast milk N-glycans is beneficial for the establishment of RORγt+ Treg cell mediated early-life immune tolerance through the manipulation of symbiotic bacteria in mice.
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Affiliation(s)
- Yuyuan Li
- Advanced Institute for Medical Sciences, Dalian Medical University, Dalian, China.
| | - Xixi Ning
- College of Basic Medical Science, Dalian Medical University, Dalian, China.
| | - Zihui Zhao
- Pelvic Floor Repair Center, Dalian Women and Children's Medical Group, Dalian, China
| | - Xi He
- College of Basic Medical Science, Dalian Medical University, Dalian, China.
| | - Qidi Xue
- College of Basic Medical Science, Dalian Medical University, Dalian, China.
| | - Manlin Zhou
- College of Basic Medical Science, Dalian Medical University, Dalian, China.
| | - Wenzhe Li
- Shantou University Medical College, Shantou, Guangdong, China.
| | - Ming Li
- College of Basic Medical Science, Dalian Medical University, Dalian, China.
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3
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Dokoshi T, Chen Y, Cavagnero KJ, Rahman G, Hakim D, Brinton S, Schwarz H, Brown EA, O'Neill A, Nakamura Y, Li F, Salzman NH, Knight R, Gallo RL. Dermal injury drives a skin to gut axis that disrupts the intestinal microbiome and intestinal immune homeostasis in mice. Nat Commun 2024; 15:3009. [PMID: 38589392 PMCID: PMC11001995 DOI: 10.1038/s41467-024-47072-3] [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: 07/26/2023] [Accepted: 03/20/2024] [Indexed: 04/10/2024] Open
Abstract
The composition of the microbial community in the intestine may influence the functions of distant organs such as the brain, lung, and skin. These microbes can promote disease or have beneficial functions, leading to the hypothesis that microbes in the gut explain the co-occurrence of intestinal and skin diseases. Here, we show that the reverse can occur, and that skin directly alters the gut microbiome. Disruption of the dermis by skin wounding or the digestion of dermal hyaluronan results in increased expression in the colon of the host defense genes Reg3 and Muc2, and skin wounding changes the composition and behavior of intestinal bacteria. Enhanced expression Reg3 and Muc2 is induced in vitro by exposure to hyaluronan released by these skin interventions. The change in the colon microbiome after skin wounding is functionally important as these bacteria penetrate the intestinal epithelium and enhance colitis from dextran sodium sulfate (DSS) as seen by the ability to rescue skin associated DSS colitis with oral antibiotics, in germ-free mice, and fecal microbiome transplantation to unwounded mice from mice with skin wounds. These observations provide direct evidence of a skin-gut axis by demonstrating that damage to the skin disrupts homeostasis in intestinal host defense and alters the gut microbiome.
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Affiliation(s)
- Tatsuya Dokoshi
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Yang Chen
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA
| | - Kellen J Cavagnero
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Gibraan Rahman
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA
| | - Daniel Hakim
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA
| | - Samantha Brinton
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Hana Schwarz
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Elizabeth A Brown
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Alan O'Neill
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Yoshiyuki Nakamura
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Fengwu Li
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA
| | - Nita H Salzman
- Department of Pediatrics, Division of Gastroenterology and Center for Microbiome Research, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Rob Knight
- Department of Pediatrics, University of California, San Diego, La Jolla, CA, USA
- Department of Computer Science & Engineering, University of California, San Diego, La Jolla, CA, USA
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, USA
- Center for Microbiome Innovation, University of California, San Diego, La Jolla, CA, USA
| | - Richard L Gallo
- Department of Dermatology, University of California, San Diego, La Jolla, CA, USA.
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Li X, Ning X, Rui B, Wang Y, Lei Z, Yu D, Liu F, Deng Y, Yuan J, Li W, Yan J, Li M. Alterations of milk oligosaccharides in mothers with gestational diabetes mellitus impede colonization of beneficial bacteria and development of RORγt + Treg cell-mediated immune tolerance in neonates. Gut Microbes 2023; 15:2256749. [PMID: 37741825 PMCID: PMC10519364 DOI: 10.1080/19490976.2023.2256749] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/05/2023] [Indexed: 09/25/2023] Open
Abstract
Gestational diabetes mellitus (GDM) is an increasing public health concern that significantly increases the risk of early childhood allergic diseases. Altered maternal milk glycobiome may strongly affect gut microbiota and enteric-specific Treg cell-mediated development of immune tolerance in GDM infants. In this study, we found that, compared with healthy Chinese mothers, mothers with GDM had significantly lower levels of total and specific human milk oligosaccharides (HMOs) in their colostrum that subsequently increased with extension of lactation. This alteration in HMO profiles significantly delayed colonization of Lactobacillus and Bifidobacterium spp. in their breast-fed infants, resulting in a distinct gut microbial structure and metabolome. Further experiments in GDM mouse models indicated that decreased contents of milk oligosaccharides, mainly 3'-sialyllactose (3'-SL), in GDM maternal mice reduced colonization of bacteria, such as L. reuteri and L. johnsonii, in the neonatal gut, which impeded development of RORγt+ regulatory T (Treg) cell-mediated immune tolerance. Treatment of GDM neonates with 3'-SL, Lactobacillus reuteri (L. reuteri) and L. johnsonii promoted the proliferation of enteric Treg cells and expression of transcription factor RORγt, which may have contributed to compromising ovalbumin (OVA)-induced allergic responses. In vitro experiments showed that 3'-SL, metabolites of L. johnsonii, and lysates of L. reuteri stimulated differentiation of mouse RORγt+ Treg cells through multiple regulatory effects on Toll-like receptor, MAPK, p53, and NOD-like receptor signaling pathways. This study provides new ideas for the development of gut microbiota and immune tolerance in GDM newborns.
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Affiliation(s)
- Xinke Li
- Department of Microecology, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Xixi Ning
- Department of Microecology, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Binqi Rui
- Department of Microecology, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Yushuang Wang
- Department of Microecology, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Zengjie Lei
- Department of Microecology, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Da Yu
- Department of Obstetrics, Dalian Women and Children Medical Center (Group), Dalian, China
| | - Feitong Liu
- H&H Group, H&H Research, China Research and Innovation Center, Guangzhou, China
| | - Yanjie Deng
- Department of Obstetrics, Dalian Women and Children Medical Center (Group), Dalian, China
| | - Jieli Yuan
- Department of Microecology, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Wenzhe Li
- Department of Microecology, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Jingyu Yan
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Ming Li
- Department of Microecology, College of Basic Medical Science, Dalian Medical University, Dalian, China
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5
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van Baarle L, Stakenborg M, Matteoli G. Enteric neuro-immune interactions in intestinal health and disease. Semin Immunol 2023; 70:101819. [PMID: 37632991 DOI: 10.1016/j.smim.2023.101819] [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: 09/30/2022] [Revised: 07/19/2023] [Accepted: 08/11/2023] [Indexed: 08/28/2023]
Abstract
The enteric nervous system is an autonomous neuronal circuit that regulates many processes far beyond the peristalsis in the gastro-intestinal tract. This circuit, consisting of enteric neurons and enteric glial cells, can engage in many intercellular interactions shaping the homeostatic microenvironment in the gut. Perhaps the most well documented interactions taking place, are the intestinal neuro-immune interactions which are essential for the fine-tuning of oral tolerance. In the context of intestinal disease, compelling evidence demonstrates both protective and detrimental roles for this bidirectional neuro-immune signaling. This review discusses the different immune cell types that are recognized to engage in neuronal crosstalk during intestinal health and disease. Highlighting the molecular pathways involved in the neuro-immune interactions might inspire novel strategies to target intestinal disease.
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Affiliation(s)
- Lies van Baarle
- Department of Chronic Diseases and Metabolism (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Herestraat 49, O&N1 box 701, 3000 Leuven, Belgium
| | - Michelle Stakenborg
- Department of Chronic Diseases and Metabolism (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Herestraat 49, O&N1 box 701, 3000 Leuven, Belgium
| | - Gianluca Matteoli
- Department of Chronic Diseases and Metabolism (CHROMETA), Translational Research Center for Gastrointestinal Disorders (TARGID), KU Leuven, Herestraat 49, O&N1 box 701, 3000 Leuven, Belgium.
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6
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López-Fandiño R, Molina E, Lozano-Ojalvo D. Intestinal factors promoting the development of RORγt + cells and oral tolerance. Front Immunol 2023; 14:1294292. [PMID: 37936708 PMCID: PMC10626553 DOI: 10.3389/fimmu.2023.1294292] [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: 09/14/2023] [Accepted: 10/09/2023] [Indexed: 11/09/2023] Open
Abstract
The gastrointestinal tract has to harmonize the two seemingly opposite functions of fulfilling nutritional needs and avoiding the entry of pathogens, toxins and agents that can cause physical damage. This balance requires a constant adjustment of absorptive and defending functions by sensing environmental changes or noxious substances and initiating adaptive or protective mechanisms against them through a complex network of receptors integrated with the central nervous system that communicate with cells of the innate and adaptive immune system. Effective homeostatic processes at barrier sites take the responsibility for oral tolerance, which protects from adverse reactions to food that cause allergic diseases. During a very specific time interval in early life, the establishment of a stable microbiota in the large intestine is sufficient to prevent pathological events in adulthood towards a much larger bacterial community and provide tolerance towards diverse food antigens encountered later in life. The beneficial effects of the microbiome are mainly exerted by innate and adaptive cells that express the transcription factor RORγt, in whose generation, mediated by different bacterial metabolites, retinoic acid signalling plays a predominant role. In addition, recent investigations indicate that food antigens also contribute, analogously to microbial-derived signals, to educating innate immune cells and instructing the development and function of RORγt+ cells in the small intestine, complementing and expanding the tolerogenic effect of the microbiome in the colon. This review addresses the mechanisms through which microbiota-produced metabolites and dietary antigens maintain intestinal homeostasis, highlighting the complementarity and redundancy between their functions.
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Affiliation(s)
- Rosina López-Fandiño
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, Madrid, Spain
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Kummola L, González-Rodríguez MI, Marnila P, Nurminen N, Salomaa T, Hiihtola L, Mäkelä I, Laitinen OH, Hyöty H, Sinkkonen A, Junttila IS. Comparison of the effect of autoclaved and non-autoclaved live soil exposure on the mouse immune system : Effect of soil exposure on immune system. BMC Immunol 2023; 24:29. [PMID: 37689649 PMCID: PMC10492337 DOI: 10.1186/s12865-023-00565-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 08/29/2023] [Indexed: 09/11/2023] Open
Abstract
BACKGROUND . Lack of exposure to the natural microbial diversity of the environment has been linked to dysregulation of the immune system and numerous noncommunicable diseases, such as allergies and autoimmune disorders. Our previous studies suggest that contact with soil material, rich in naturally occurring microbes, could have a beneficial immunoregulatory impact on the immune system in mice and humans. However, differences in the immunomodulatory properties of autoclaved, sterile soil material and non-autoclaved, live soil material have not been compared earlier. RESULTS . In this study, we exposed C57BL/6 mice to autoclaved and live soil powders that had the same rich microbiota before autoclaving. We studied the effect of the soil powders on the mouse immune system by analyzing different immune cell populations, gene expression in the gut, mesenteric lymph nodes and lung, and serum cytokines. Both autoclaved and live soil exposure were associated with changes in the immune system. The exposure to autoclaved soil resulted in higher levels of Rorγt, Inos and Foxp3 expression in the colon. The exposure to live soil was associated with elevated IFN-γ concentration in the serum. In the mesenteric lymph node, exposure to live soil reduced Gata3 and Foxp3 expression, increased the percentage of CD8 + T cells and the expression of activation marker CD80 in XCR1+SIRPα- migratory conventional dendritic cell 1 subset. CONCLUSIONS . Our results indicate that exposure to the live and autoclaved soil powders is not toxic for mice. Exposure to live soil powder slightly skews the immune system towards type 1 direction which might be beneficial for inhibiting type 2-related inflammation. Further studies are warranted to quantify the impact of this exposure in experimental type 2 inflammation.
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Affiliation(s)
- Laura Kummola
- Faculty of Medicine and Health Technology, Tampere University, Tampere, 33014, Finland
| | | | - Pertti Marnila
- Natural Resources Institute Finland (Luke), Jokioinen, Finland
| | - Noora Nurminen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, 33014, Finland
| | - Tanja Salomaa
- Faculty of Medicine and Health Technology, Tampere University, Tampere, 33014, Finland
- Fimlab Laboratories, Arvo-Building, Rm F326, Arvo Ylpön katu 34, Tampere, 33520, Finland
| | - Lotta Hiihtola
- Faculty of Medicine and Health Technology, Tampere University, Tampere, 33014, Finland
- Fimlab Laboratories, Arvo-Building, Rm F326, Arvo Ylpön katu 34, Tampere, 33520, Finland
| | - Iida Mäkelä
- Natural Resources Institute Finland (Luke), Jokioinen, Finland
| | - Olli H Laitinen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, 33014, Finland
| | - Heikki Hyöty
- Faculty of Medicine and Health Technology, Tampere University, Tampere, 33014, Finland
| | - Aki Sinkkonen
- Natural Resources Institute Finland (Luke), Jokioinen, Finland
| | - Ilkka S Junttila
- Faculty of Medicine and Health Technology, Tampere University, Tampere, 33014, Finland.
- Fimlab Laboratories, Arvo-Building, Rm F326, Arvo Ylpön katu 34, Tampere, 33520, Finland.
- Northern Finland Laboratory Centre (NordLab), Oulu, 90220, Finland.
- Research Unit of Biomedicine, University of Oulu, Oulu, 90570, Finland.
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8
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Wang J, Zhao X, Wan YY. Intricacies of TGF-β signaling in Treg and Th17 cell biology. Cell Mol Immunol 2023; 20:1002-1022. [PMID: 37217798 PMCID: PMC10468540 DOI: 10.1038/s41423-023-01036-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 04/27/2023] [Indexed: 05/24/2023] Open
Abstract
Balanced immunity is pivotal for health and homeostasis. CD4+ helper T (Th) cells are central to the balance between immune tolerance and immune rejection. Th cells adopt distinct functions to maintain tolerance and clear pathogens. Dysregulation of Th cell function often leads to maladies, including autoimmunity, inflammatory disease, cancer, and infection. Regulatory T (Treg) and Th17 cells are critical Th cell types involved in immune tolerance, homeostasis, pathogenicity, and pathogen clearance. It is therefore critical to understand how Treg and Th17 cells are regulated in health and disease. Cytokines are instrumental in directing Treg and Th17 cell function. The evolutionarily conserved TGF-β (transforming growth factor-β) cytokine superfamily is of particular interest because it is central to the biology of both Treg cells that are predominantly immunosuppressive and Th17 cells that can be proinflammatory, pathogenic, and immune regulatory. How TGF-β superfamily members and their intricate signaling pathways regulate Treg and Th17 cell function is a question that has been intensely investigated for two decades. Here, we introduce the fundamental biology of TGF-β superfamily signaling, Treg cells, and Th17 cells and discuss in detail how the TGF-β superfamily contributes to Treg and Th17 cell biology through complex yet ordered and cooperative signaling networks.
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Affiliation(s)
- Junying Wang
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Xingqi Zhao
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Yisong Y Wan
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
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Wang Y, Xue N, Wang Z, Zeng X, Ji N, Chen Q. Targeting Th17 cells: a promising strategy to treat oral mucosal inflammatory diseases. Front Immunol 2023; 14:1236856. [PMID: 37564654 PMCID: PMC10410157 DOI: 10.3389/fimmu.2023.1236856] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 07/06/2023] [Indexed: 08/12/2023] Open
Abstract
With the improved quality of life, oral health is under increased pressure. Numerous common oral mucosal diseases, such as oral lichen planus(OLP) and gingivitis, are related to the destruction of the oral immune barrier. The cytokines secreted by T-helper 17 (Th17) cells are essential for maintaining oral immune homeostasis and play essential roles in immune surveillance. When antigens stimulate the epithelium, Th17 cells expand, differentiate, and generate inflammatory factors to recruit other lymphocytes, such as neutrophils, to clear the infection, which helps to maintain the integrity of the epithelial barrier. In contrast, excessive Th17/IL-17 axis reactions may cause autoimmune damage. Therefore, an in-depth understanding of the role of Th17 cells in oral mucosa may provide prospects for treating oral mucosal diseases. We reviewed the role of Th17 cells in various oral and skin mucosal systemic diseases with oral characteristics, and based on the findings of these reports, we emphasize that Th17 cellular response may be a critical factor in inflammatory diseases of the oral mucosa. In addition, we should pay attention to the role and relationship of "pathogenic Th17" and "non-pathogenic Th17" in oral mucosal diseases. We hope to provide a reference for Th17 cells as a potential therapeutic target for treating oral mucosal inflammatory disorders in the future.
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Affiliation(s)
| | | | | | | | - Ning Ji
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
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10
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Zhu L, Li G, Liang Z, Qi T, Deng K, Yu J, Peng Y, Zheng J, Song Y, Chang X. Microbiota-assisted iron uptake promotes immune tolerance in the intestine. Nat Commun 2023; 14:2790. [PMID: 37188703 PMCID: PMC10185671 DOI: 10.1038/s41467-023-38444-2] [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: 08/13/2022] [Accepted: 04/28/2023] [Indexed: 05/17/2023] Open
Abstract
Iron deficiencies are the most common nonenteric syndromes observed in patients with inflammatory bowel disease, but little is known about their impacts on immune tolerance. Here we show that homeostasis of regulatory T cells in the intestine was dependent on high cellular iron levels, which were fostered by pentanoate, a short-chain fatty acid produced by intestinal microbiota. Iron deficiencies in Treg caused by the depletion of Transferrin receptor 1, a major iron transporter, result in the abrogation of Treg in the intestine and lethal autoimmune disease. Transferrin receptor 1 is required for differentiation of c-Maf+ Treg, major constituents of intestinal Treg. Mechanistically, iron enhances the translation of HIF-2α mRNA, and HIF-2α in turn induces c-Maf expression. Importantly, microbiota-produced pentanoate promotes iron uptake and Treg differentiation in the intestine. This subsequently restores immune tolerance and ameliorated iron deficiencies in mice with colitis. Our results thus reveal an association between nutrient uptake and immune tolerance in the intestine.
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Affiliation(s)
- Lizhen Zhu
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
- Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Research Center for Industries of the Future (RCIF), Westlake University, Hangzhou, Zhejiang, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Geng Li
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
- Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Research Center for Industries of the Future (RCIF), Westlake University, Hangzhou, Zhejiang, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Zhixin Liang
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
- Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Research Center for Industries of the Future (RCIF), Westlake University, Hangzhou, Zhejiang, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Tuan Qi
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
- Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Research Center for Industries of the Future (RCIF), Westlake University, Hangzhou, Zhejiang, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Kui Deng
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
- Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Research Center for Industries of the Future (RCIF), Westlake University, Hangzhou, Zhejiang, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Jiancheng Yu
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
- Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Research Center for Industries of the Future (RCIF), Westlake University, Hangzhou, Zhejiang, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Yue Peng
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
- Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Research Center for Industries of the Future (RCIF), Westlake University, Hangzhou, Zhejiang, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Jusheng Zheng
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China
- Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China
- Research Center for Industries of the Future (RCIF), Westlake University, Hangzhou, Zhejiang, China
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Yan Song
- School of Medicine, University of California San Diego, La Jolla, CA, US
| | - Xing Chang
- Key Laboratory of Growth Regulation and Translational Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, Zhejiang, China.
- Center for Infectious Disease Research, Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, Zhejiang, China.
- Research Center for Industries of the Future (RCIF), Westlake University, Hangzhou, Zhejiang, China.
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China.
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11
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Sun CY, Yang N, Zheng ZL, Liu D, Xu QL. T helper 17 (Th17) cell responses to the gut microbiota in human diseases. Biomed Pharmacother 2023; 161:114483. [PMID: 36906976 DOI: 10.1016/j.biopha.2023.114483] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 03/05/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
The gut microbiota colonizing the gastrointestinal tract, is an indispensable "invisible organ" that affects multiple aspects of human health. The gut microbial community has been assumed to be an important stimulus to the immune homeostasis and development, and increasing data support the role of the gut microbiota-immunity axis in autoimmune diseases. Host's immune system requires recognition tools to communicate with the gut microbial evolutionary partners. Among these microbial perceptions, T cells enable the widest spectrum of gut microbial recognition resolution. Specific gut microbiota direct the induction and differentiation of Th17 cells in intestine. However, the detailed links between the gut microbiota and Th17 cells have not been well established. In this review, we describe the generation and characterization of Th17 cells. Notably, we discuss the induction and differentiation of Th17 cells by the gut microbiota and their metabolites, as well as recent advances in our understanding of interactions between Th17 cells and the gut microbiota in human diseases. In addition, we provide the emerging evidences in support of interventions targeting the gut microbes/Th17 cells in human diseases.
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Affiliation(s)
- Chao-Yue Sun
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, China; Anhui Engineering Research Center for Eco-agriculture of Traditional Chinese Medicine, China
| | - Na Yang
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, China; Anhui Engineering Research Center for Eco-agriculture of Traditional Chinese Medicine, China
| | | | - Dong Liu
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, China; Anhui Engineering Research Center for Eco-agriculture of Traditional Chinese Medicine, China
| | - Qi-Lin Xu
- College of Biological and Pharmaceutical Engineering, West Anhui University, Lu'an, China; Anhui Engineering Research Center for Eco-agriculture of Traditional Chinese Medicine, China.
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12
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Giannos P, Prokopidis K, Isanejad M, Wright HL. Markers of immune dysregulation in response to the ageing gut: insights from aged murine gut microbiota transplants. BMC Gastroenterol 2022; 22:533. [PMID: 36544093 PMCID: PMC9773626 DOI: 10.1186/s12876-022-02613-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Perturbations in the composition and diversity of the gut microbiota are accompanied by a decline in immune homeostasis during ageing, characterized by chronic low-grade inflammation and enhanced innate immunity. Genetic insights into the interaction between age-related alterations in the gut microbiota and immune function remain largely unexplored. METHODS We investigated publicly available transcriptomic gut profiles of young germ-free mouse hosts transplanted with old donor gut microbiota to identify immune-associated differentially expressed genes (DEGs). Literature screening of the Gene Expression Omnibus and PubMed identified one murine (Mus musculus) gene expression dataset (GSE130026) that included small intestine tissues from young (5-6 weeks old) germ-free mice hosts that were compared following 8 weeks after transplantation with either old (~ 24-month old; n = 5) or young (5-6 weeks old; n = 4) mouse donor gut microbiota. RESULTS A total of 112 differentially expressed genes (DEGs) were identified and used to construct a gut network of encoded proteins, in which DEGs were functionally annotated as being involved in an immune process based on gene ontology. The association between the expression of immune-process DEGs and abundance of immune infiltrates from gene signatures in normal colorectal tissues was estimated from The Cancer Genome Atlas (TCGA) and Genotype-Tissue Expression (GTEx) project. The analysis revealed a 25-gene signature of immune-associated DEGs and their expression profile was positively correlated with naïve T-cell, effector memory T-cell, central memory T-cell, resident memory T-cell, exhausted T-cell, resting Treg T-cell, effector Treg T-cell and Th1-like colorectal gene signatures. Conclusions These genes may have a potential role as candidate markers of immune dysregulation during gut microbiota ageing. Moreover, these DEGs may provide insights into the altered immune response to microbiota in the ageing gut, including reduced antigen presentation and alterations in cytokine and chemokine production.
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Affiliation(s)
- Panagiotis Giannos
- Society of Meta-Research and Biomedical Innovation, London, UK.,Department of Life Sciences, Faculty of Natural Sciences, Imperial College London, London, UK
| | - Konstantinos Prokopidis
- Society of Meta-Research and Biomedical Innovation, London, UK.,Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Masoud Isanejad
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Helen L Wright
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK.
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13
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Setd2 supports GATA3 +ST2 + thymic-derived Treg cells and suppresses intestinal inflammation. Nat Commun 2022; 13:7468. [PMID: 36463230 PMCID: PMC9719510 DOI: 10.1038/s41467-022-35250-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 11/24/2022] [Indexed: 12/05/2022] Open
Abstract
Treg cells acquire distinct transcriptional properties to suppress specific inflammatory responses. Transcription characteristics of Treg cells are regulated by epigenetic modifications, the mechanism of which remains obscure. Here, we report that Setd2, a histone H3K36 methyltransferase, is important for the survival and suppressive function of Treg cells, especially those from the intestine. Setd2 supports GATA3+ST2+ intestinal thymic-derived Treg (tTreg) cells by facilitating the expression and reciprocal relationship of GATA3 and ST2 in tTreg cells. IL-33 preferentially boosts Th2 cells rather than GATA3+ Treg cells in Foxp3Cre-YFPSetd2 flox/flox mice, corroborating the constraint of Th2 responses by Setd2 expression in Treg cells. SETD2 sustains GATA3 expression in human Treg cells, and SETD2 expression is increased in Treg cells from human colorectal cancer tissues. Epigenetically, Setd2 regulates the transcription of target genes (including Il1rl1) by modulating the activity of promoters and intragenic enhancers where H3K36me3 is typically deposited. Our findings provide mechanistic insights into the regulation of Treg cells and intestinal immunity by Setd2.
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14
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Making Sense of Quorum Sensing at the Intestinal Mucosal Interface. Cells 2022; 11:cells11111734. [PMID: 35681429 PMCID: PMC9179481 DOI: 10.3390/cells11111734] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 12/12/2022] Open
Abstract
The gut microbiome can produce metabolic products that exert diverse activities, including effects on the host. Short chain fatty acids and amino acid derivatives have been the focus of many studies, but given the high microbial density in the gastrointestinal tract, other bacterial products such as those released as part of quorum sensing are likely to play an important role for health and disease. In this review, we provide of an overview on quorum sensing (QS) in the gastrointestinal tract and summarise what is known regarding the role of QS molecules such as auto-inducing peptides (AIP) and acyl-homoserine lactones (AHL) from commensal, probiotic, and pathogenic bacteria in intestinal health and disease. QS regulates the expression of numerous genes including biofilm formation, bacteriocin and toxin secretion, and metabolism. QS has also been shown to play an important role in the bacteria–host interaction. We conclude that the mechanisms of action of QS at the intestinal neuro–immune interface need to be further investigated.
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15
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Qiu J, Ma Y, Qiu J. Regulation of intestinal immunity by dietary fatty acids. Mucosal Immunol 2022; 15:846-856. [PMID: 35821290 DOI: 10.1038/s41385-022-00547-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/28/2022] [Accepted: 06/28/2022] [Indexed: 02/04/2023]
Abstract
Dietary fatty acids are absorbed through the intestine and are fundamental for cellular energy provision and structural formation. Dietary fatty acids profoundly affect intestinal immunity and influence the development and progression of inflammatory bowel disease, intestinal infections and tumors. Although different types of fatty acids exert differential roles in intestinal immunity, a western diet, rich in saturated fatty acids with abundant carbohydrates and studied as high-fat diet (HFD) in animal experiments, disturbs intestinal homeostasis and plays a pathogenic role in intestinal inflammatory diseases. Here, we review recent findings on the regulation of intestinal immunity by dietary fatty acids, focusing on HFD. We summarize HFD-altered immune responses leading to susceptibility to intestinal pathology and dissect the mechanisms involving the impact of HFD on immune cells, intestinal epithelial cells and the microbiota. Understanding the perturbation of intestinal immunity by HFD will provide new strategies for prevention and treatment of intestinal inflammatory diseases.
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Affiliation(s)
- Jinxin Qiu
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yanhui Ma
- Department of Laboratory Medicine, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
| | - Ju Qiu
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
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16
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Dokoshi T, Seidman JS, Cavagnero KJ, Li F, Liggins MC, Taylor BC, Olvera J, Knight R, Chang JT, Salzman NH, Gallo RL. Skin inflammation activates intestinal stromal fibroblasts and promotes colitis. J Clin Invest 2021; 131:147614. [PMID: 34720087 DOI: 10.1172/jci147614] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 09/16/2021] [Indexed: 01/01/2023] Open
Abstract
Inflammatory disorders of the skin are frequently associated with inflammatory bowel diseases (IBDs). To explore mechanisms by which these organs communicate, we performed single-cell RNA-Seq analysis on fibroblasts from humans and mice with IBD. This analysis revealed that intestinal inflammation promoted differentiation of a subset of intestinal stromal fibroblasts into preadipocytes with innate antimicrobial host defense activity. Furthermore, this process of reactive adipogenesis was exacerbated if mouse skin was inflamed as a result of skin wounding or infection. Since hyaluronan (HA) catabolism is activated during skin injury and fibroblast-to-adipocyte differentiation is dependent on HA, we tested the hypothesis that HA fragments could alter colon fibroblast function by targeted expression of human hyaluronidase-1 in basal keratinocytes from mouse skin. Hyaluronidase expression in the skin activated intestinal stromal fibroblasts, altered the fecal microbiome, and promoted excessive reactive adipogenesis and increased inflammation in the colon after challenge with dextran sodium sulfate. The response to digested HA was dependent on expression of TLR4 by preadipocytes. Collectively, these results suggest that the association between skin inflammation and IBD may be due to recognition by mesenchymal fibroblasts in the colon of HA released during inflammation of the skin.
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Affiliation(s)
| | | | | | | | | | | | | | - Rob Knight
- Department of Pediatrics, UCSD, La Jolla, California, USA
| | | | - Nita H Salzman
- Departments of Pediatrics, Microbiology, and Immunology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
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17
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Wilson PA, Santos Franco S, He L, Galwey NW, Meakin J, McIntyre R, McHugh SM, Nolan MA, Spain SL, Carlson T, Lobera M, Rubio JP, Davis B, McCarthy LC. Transcriptomic effects of rs4845604, an IBD and allergy-associated RORC variant, in stimulated ex vivo CD4+ T cells. PLoS One 2021; 16:e0258316. [PMID: 34673799 PMCID: PMC8530322 DOI: 10.1371/journal.pone.0258316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 09/23/2021] [Indexed: 11/18/2022] Open
Abstract
RORγt is an isoform of RORC, preferentially expressed in Th17 cells, that functions as a critical regulator of type 3 immunity. As murine Th17-driven inflammatory disease models were greatly diminished in RORC knock-out mice, this receptor was prioritised as an attractive therapeutic target for the treatment of several autoimmune diseases. Human genetic studies indicate a significant contributory role for RORC in several human disease conditions. Furthermore, genome-wide association studies (GWAS) report a significant association between inflammatory bowel disease (IBD) and the RORC regulatory variant rs4845604. To investigate if the rs4845604 variant may affect CD4+ T cell differentiation events, naïve CD4+ T cells were isolated from eighteen healthy subjects homozygous for the rs4845604 minor (A) or major (G) allele). Isolated cells from each subject were differentiated into distinct T cell lineages by culturing in either T cell maintenance medium or Th17 driving medium conditions for six days in the presence of an RORC inverse agonist (to prevent constitutive receptor activity) or an inactive diastereomer (control). Our proof of concept study indicated that genotype had no significant effect on the mean number of naïve CD4 T cells isolated, nor the frequency of Th1-like and Th17-like cells following six days of culture in any of the four culture conditions. Analysis of the derived RNA-seq count data identified genotype-driven transcriptional effects in each of the four culture conditions. Subsequent pathway enrichment analysis of these profiles reported perturbation of metabolic signalling networks, with the potential to affect the cellular detoxification response. This investigation reveals that rs4845604 genotype is associated with transcriptional effects in CD4+ T cells that may perturb immune and metabolic pathways. Most significantly, the rs4845604 GG, IBD risk associated, genotype may be associated with a differential detoxification response. This observation justifies further investigation in a larger cohort of both healthy and IBD-affected individuals.
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Affiliation(s)
- Paul A. Wilson
- Human Genetics, GlaxoSmithKline Medicine Research Centre, Stevenage, England
| | - Sara Santos Franco
- Clinical Unit Cambridge, Addenbrooke’s Centre for Clinical Investigation, GlaxoSmithKline, Cambridge, England
| | - Liu He
- Wellcome Sanger Institute, Hinxton, Cambridge, United Kingdom
| | - Nicholas W. Galwey
- Research Statistics, GlaxoSmithKline Medicines Research Centre, Stevenage, England
| | - Jackie Meakin
- Functional Genomics, GlaxoSmithKline Medicines Research Centre, Stevenage, England
| | | | - Simon M. McHugh
- Clinical Unit Cambridge, Addenbrooke’s Centre for Clinical Investigation, GlaxoSmithKline, Cambridge, England
| | | | | | - Thaddeus Carlson
- Adaptive Immunity, GSK Pharma Research & Development, Cambridge, MA, United States of America
| | - Mercedes Lobera
- Adaptive Immunity, GSK Pharma Research & Development, Cambridge, MA, United States of America
| | - Justin P. Rubio
- Department of Pharmacology and Therapeutics, The University of Melbourne, Victoria, Australia
- The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, Australia
| | - Bill Davis
- Clinical Unit Cambridge, Addenbrooke’s Centre for Clinical Investigation, GlaxoSmithKline, Cambridge, England
| | - Linda C. McCarthy
- Human Genetics, GlaxoSmithKline Medicine Research Centre, Stevenage, England
- * E-mail:
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18
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Martínez-Blanco M, Lozano-Ojalvo D, Pérez-Rodríguez L, Benedé S, Molina E, López-Fandiño R. Retinoic Acid Induces Functionally Suppressive Foxp3 +RORγt + T Cells In Vitro. Front Immunol 2021; 12:675733. [PMID: 34447371 PMCID: PMC8382797 DOI: 10.3389/fimmu.2021.675733] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 07/21/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction CD4+ T cells with regulatory function co-expressing Foxp3 and RORγt are linked to the development of oral tolerance towards innocuous food antigens in mice. This study aimed to discern the role played by IL-6 and retinoic acid (RA) in the in vitro generation of Foxp3+RORγt+ T cells and to investigate whether such cells have suppressive properties. Methods CD4+CD25- T cells isolated from the spleen of BALB/c mice, were stimulated in the presence of IL-2 alone or together with TFG-β and different concentrations of IL-6 and/or RA. Percentage of Foxp3+, RORγt+, IL-17+, Foxp3+RORγt-, Foxp3+RORγt+, and Foxp3-RORγt+ T cells within the total CD4+ T cell population, production of cytokines (IL-10 and IL-17A) and gene expression (Foxp3, Rorc, Tgfb1, Il6, Il10, and Il17) were assessed at different time points. The phenotype and ability of cells generated from CD4+CD44-CD62L+ cells in the presence of RA to suppress effector T cell proliferation was assessed. Results TGF-β plus IL-6 induced the generation of Foxp3+ and double positive Foxp3+RORγt+ T cells to a higher extent than TGF-β alone at the beginning of the incubation period, although expression of Foxp3 subsequently declined. RA, added to TGF-β, increased Foxp3 and Rorc expression and Foxp3 and RORγt transcription and promoted the differentiation of Foxp3+RORγt- and Foxp3+RORγt+ cells that expressed and secreted IL-17. Foxp3+ T cells generated in vitro in presence of RA were functionally suppressive. Conclusions Under the influence of IL-2 and TGF-β, suppressive Foxp3+RORγt+ T cells that express and secrete IL-17 can be produced in vitro and RA further contributes to stabilize this phenotype.
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Affiliation(s)
- Mónica Martínez-Blanco
- Food Allergy Group, Department of Bioactivity and Food Anaysis, Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Madrid, Spain
| | - Daniel Lozano-Ojalvo
- Food Allergy Group, Department of Bioactivity and Food Anaysis, Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Madrid, Spain
| | - Leticia Pérez-Rodríguez
- Food Allergy Group, Department of Bioactivity and Food Anaysis, Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Madrid, Spain
| | - Sara Benedé
- Food Allergy Group, Department of Bioactivity and Food Anaysis, Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Madrid, Spain
| | - Elena Molina
- Food Allergy Group, Department of Bioactivity and Food Anaysis, Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Madrid, Spain
| | - Rosina López-Fandiño
- Food Allergy Group, Department of Bioactivity and Food Anaysis, Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Madrid, Spain
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19
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Hyun CK. Molecular and Pathophysiological Links between Metabolic Disorders and Inflammatory Bowel Diseases. Int J Mol Sci 2021; 22:ijms22179139. [PMID: 34502047 PMCID: PMC8430512 DOI: 10.3390/ijms22179139] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 08/21/2021] [Accepted: 08/22/2021] [Indexed: 02/07/2023] Open
Abstract
Despite considerable epidemiological evidence indicating comorbidity between metabolic disorders, such as obesity, type 2 diabetes, and non-alcoholic fatty liver disease, and inflammatory bowel diseases (IBD), such as Crohn’s disease and ulcerative colitis, as well as common pathophysiological features shared by these two categories of diseases, the relationship between their pathogenesis at molecular levels are not well described. Intestinal barrier dysfunction is a characteristic pathological feature of IBD, which also plays causal roles in the pathogenesis of chronic inflammatory metabolic disorders. Increased intestinal permeability is associated with a pro-inflammatory response of the intestinal immune system, possibly leading to the development of both diseases. In addition, dysregulated interactions between the gut microbiota and the host immunity have been found to contribute to immune-mediated disorders including the two diseases. In connection with disrupted gut microbial composition, alterations in gut microbiota-derived metabolites have also been shown to be closely related to the pathogeneses of both diseases. Focusing on these prominent pathophysiological features observed in both metabolic disorders and IBD, this review highlights and summarizes the molecular risk factors that may link between the pathogeneses of the two diseases, which is aimed at providing a comprehensive understanding of molecular mechanisms underlying their comorbidity.
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Affiliation(s)
- Chang-Kee Hyun
- School of Life Science, Handong Global University, Pohang 37554, Gyungbuk, Korea
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20
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Cosovanu C, Neumann C. The Many Functions of Foxp3 + Regulatory T Cells in the Intestine. Front Immunol 2020; 11:600973. [PMID: 33193456 PMCID: PMC7606913 DOI: 10.3389/fimmu.2020.600973] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 09/28/2020] [Indexed: 12/16/2022] Open
Abstract
Throughout the last years, gut-resident Foxp3+ regulatory T (Treg) cells have been associated with a growing number of tissue-specific functions in the intestine, comprising various aspects of gut immunity and physiology. Treg cells have pivotal roles in intestinal tolerance induction and host defense by actively controlling immune responses towards harmless dietary antigens and commensal microorganisms as well as towards invading pathogens. In addition to these immune-related roles, it has become increasingly clear that intestinal Treg cells also exert important non-immune functions in the gut, such as promoting local tissue repair and preserving the integrity of the epithelial barrier. Thereby, intestinal Treg cells critically contribute to the maintenance of tissue homeostasis. In order to account for this functional diversity, gut-resident Treg cells have specifically adapted to the intestinal tissue microenvironment. In this Review, we discuss the specialization of Treg cells in the intestine. We survey the different populations of gut-resident Treg cells focussing on their unique functions, phenotypes and distinct transcription factor dependencies.
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Affiliation(s)
- Catalina Cosovanu
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin, Berlin, Germany
| | - Christian Neumann
- Institute of Microbiology, Infectious Diseases and Immunology, Charité-Universitätsmedizin, Berlin, Germany
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21
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Kreft L, Hoffmann C, Ohnmacht C. Therapeutic Potential of the Intestinal Microbiota for Immunomodulation of Food Allergies. Front Immunol 2020; 11:1853. [PMID: 32922400 PMCID: PMC7456891 DOI: 10.3389/fimmu.2020.01853] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Accepted: 07/09/2020] [Indexed: 12/19/2022] Open
Abstract
Food allergy is an atopic disease that is caused by the immune system targeting harmless food antigens that can result in life-threatening anaphylaxis. As humans and microbes have co-evolved, inevitably commensal microbes have a tremendous impact on our health. As such, the gut with its enormous microbial richness reflects a highly tolerogenic environment at steady state, in which immune cells are educated to react in a well-calibrated manner to food and microbial antigens. Recent evidence indicates that the susceptibility to food allergy is critically linked to microbial dysbiosis and can be transmitted by microbial transfer from humans to mice. Experimental work and epidemiological studies further point toward a critical time window in early childhood during which the immune system is imprinted by microbial colonization. Particularly, Foxp3-expressing regulatory T cells turn out to be key players, acting as rheostats for controlling the magnitude of food allergic reactions. An increasing number of bacterial metabolites has recently been shown to regulate directly or indirectly the differentiation of peripherally induced Tregs, most of which co-express the RAR-related orphan receptor gamma t (RORγt). Genetic ablation provided additional direct evidence for the importance of RORγt+ Tregs in food allergy. Future strategies for the stratification of food allergic patients with the aim to manipulate the intestinal microbiota by means of fecal transplantation efforts, pre- or probiotic regimens or for boosting oral immunotherapy may improve diagnosis and therapy. In this review some of the key underlying mechanisms are summarized and future directions for potential microbial therapy are explored.
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Affiliation(s)
- Luisa Kreft
- Mucosal Immunology Group, Center of Allery and Environment (ZAUM), Technical University and Helmholtz Center Munich, Munich, Germany.,Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Christian Hoffmann
- Mucosal Immunology Group, Center of Allery and Environment (ZAUM), Technical University and Helmholtz Center Munich, Munich, Germany.,Member of the German Center of Lung Research (DZL), Munich, Germany.,Department of Food Science and Experimental Nutrition, Food Research Center (FoRC), School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Caspar Ohnmacht
- Mucosal Immunology Group, Center of Allery and Environment (ZAUM), Technical University and Helmholtz Center Munich, Munich, Germany.,Member of the German Center of Lung Research (DZL), Munich, Germany
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22
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Zhou W, Yang J, Saren G, Zhao H, Cao K, Fu S, Pan X, Zhang H, Wang A, Chen X. HDAC6-specific inhibitor suppresses Th17 cell function via the HIF-1α pathway in acute lung allograft rejection in mice. Am J Cancer Res 2020; 10:6790-6805. [PMID: 32550904 PMCID: PMC7295069 DOI: 10.7150/thno.44961] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 05/08/2020] [Indexed: 12/15/2022] Open
Abstract
Background: Previous animal experiments and clinical studies indicated the critical role of Th17 cells in lung transplant rejection. Therefore, the downregulation of Th17 cell function in lung transplant recipients is of great interest. Methods: We established an orthotopic mouse lung transplantation model to investigate the role of histone deacetylase 6-specific inhibitor (HDAC6i), Tubastatin A, in the suppression of Th17 cells and attenuation of pathologic lesions in lung allografts. Moreover, mechanism studies were conducted in vitro. Results: Tubastatin A downregulated Th17 cell function in acute lung allograft rejection, prolonged the survival of lung allografts, and attenuated acute rejection by suppressing Th17 cell accumulation. Consistently, exogenous IL-17A supplementation eliminated the protective effect of Tubastatin A. Also, hypoxia-inducible factor-1α (HIF-1α) was overexpressed in a lung transplantation mouse model. HIF-1α deficiency suppressed Th17 cell function and attenuated lung allograft rejection by downregulating retinoic acid-related orphan receptor γt (ROR γt) expression. We showed that HDAC6i downregulated HIF-1α transcriptional activity under Th17-skewing conditions in vitro and promoted HIF-1α protein degradation in lung allografts. HDAC6i did not affect the suppression of HIF-1α-/- naïve CD4+ T cell differentiation into Th17 cell and attenuation of acute lung allograft rejection in HIF-1α-deficient recipient mice. Conclusion: These findings suggest that Tubastatin A downregulates Th17 cell function and suppresses acute lung allograft rejection, at least partially, via the HIF-1α/ RORγt pathway.
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Zhao L, Hu H, Gustafsson JÅ, Zhou S. Nuclear Receptors in Cancer Inflammation and Immunity. Trends Immunol 2020; 41:172-185. [PMID: 31982345 DOI: 10.1016/j.it.2019.12.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 12/10/2019] [Accepted: 12/11/2019] [Indexed: 02/05/2023]
Abstract
Members of the nuclear receptor (NR) superfamily orchestrate cellular processes that can impact on numerous cancer hallmarks. NR activity plays important roles in the tumor microenvironment by controlling inflammation and immune responses. We summarize recent insights into the diverse mechanisms by which NR activity can control tumor inflammation, the roles of different NRs in modulating tumor immunity, and the biological features of immune cells that express specific NRs in the context of cancer. NR-dependent alterations in tumor inflammation and immunity may be amenable to pharmacological manipulation and offer new clues regarding the development of novel cancer therapeutic regimens.
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Affiliation(s)
- Linjie Zhao
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education (MOE), and State Key Laboratory of Biotherapy, West China Second Hospital, Sichuan University, and Collaborative Innovation Center, Chengdu, PR China
| | - Hongbo Hu
- Department of Rheumatology and Immunology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, and Collaborative Innovation Center of Biotherapy, Chengdu, PR China
| | - Jan-Åke Gustafsson
- Department of Biology and Biochemistry, Center for Nuclear Receptors and Cell Signaling, University of Houston, Houston, TX, USA; Center for Medical Innovation, Department of Biosciences and Nutrition at Novum, Karolinska Institute, Stockholm, Sweden.
| | - Shengtao Zhou
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education (MOE), and State Key Laboratory of Biotherapy, West China Second Hospital, Sichuan University, and Collaborative Innovation Center, Chengdu, PR China.
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24
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Sidwell T, Liao Y, Garnham AL, Vasanthakumar A, Gloury R, Blume J, Teh PP, Chisanga D, Thelemann C, de Labastida Rivera F, Engwerda CR, Corcoran L, Kometani K, Kurosaki T, Smyth GK, Shi W, Kallies A. Attenuation of TCR-induced transcription by Bach2 controls regulatory T cell differentiation and homeostasis. Nat Commun 2020; 11:252. [PMID: 31937752 PMCID: PMC6959360 DOI: 10.1038/s41467-019-14112-2] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 12/11/2019] [Indexed: 01/06/2023] Open
Abstract
Differentiation and homeostasis of Foxp3+ regulatory T (Treg) cells are strictly controlled by T-cell receptor (TCR) signals; however, molecular mechanisms that govern these processes are incompletely understood. Here we show that Bach2 is an important regulator of Treg cell differentiation and homeostasis downstream of TCR signaling. Bach2 prevents premature differentiation of fully suppressive effector Treg (eTreg) cells, limits IL-10 production and is required for the development of peripherally induced Treg (pTreg) cells in the gastrointestinal tract. Bach2 attenuates TCR signaling-induced IRF4-dependent Treg cell differentiation. Deletion of IRF4 promotes inducible Treg cell differentiation and rescues pTreg cell differentiation in the absence of Bach2. In turn, loss of Bach2 normalizes eTreg cell differentiation of IRF4-deficient Treg cells. Mechanistically, Bach2 counteracts the DNA-binding activity of IRF4 and limits chromatin accessibility, thereby attenuating IRF4-dependent transcription. Thus, Bach2 balances TCR signaling induced transcriptional activity of IRF4 to maintain homeostasis of thymically-derived and peripherally-derived Treg cells.
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Affiliation(s)
- Tom Sidwell
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Molecular Immunology, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
| | - Yang Liao
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Alexandra L Garnham
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Ajithkumar Vasanthakumar
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Molecular Immunology, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
| | - Renee Gloury
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Molecular Immunology, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
| | - Jonas Blume
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Molecular Immunology, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
| | - Peggy P Teh
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Molecular Immunology, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
- Renal Medicine, Alfred Health, Melbourne, VIC, 3004, Australia
- Department of Nephrology, Western Health, St Albans, VIC, 3021, Australia
| | - David Chisanga
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Christoph Thelemann
- Molecular Immunology, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
| | | | | | - Lynn Corcoran
- Molecular Immunology, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Kohei Kometani
- Laboratory for Lymphocyte Differentiation, RIKEN Center for Integrative Medical Sciences (IMS), Kanagawa, Japan
| | - Tomohiro Kurosaki
- Laboratory for Lymphocyte Differentiation, RIKEN Center for Integrative Medical Sciences (IMS), Kanagawa, Japan
- Laboratory of Lymphocyte Differentiation, WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Gordon K Smyth
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
- School of Mathematics and Statistics, University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Wei Shi
- Bioinformatics Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia
- School of Computing and Information Systems, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Axel Kallies
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, 3010, Australia.
- Molecular Immunology, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, 3052, Australia.
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25
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Beck KR, Inderbinen SG, Kanagaratnam S, Kratschmar DV, Jetten AM, Yamaguchi H, Odermatt A. 11β-Hydroxysteroid dehydrogenases control access of 7β,27-dihydroxycholesterol to retinoid-related orphan receptor γ. J Lipid Res 2019; 60:1535-1546. [PMID: 31273032 PMCID: PMC6718442 DOI: 10.1194/jlr.m092908] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 06/24/2019] [Indexed: 12/15/2022] Open
Abstract
Oxysterols previously were considered intermediates of bile acid and steroid hormone biosynthetic pathways. However, recent research has emphasized the roles of oxysterols in essential physiologic processes and in various diseases. Despite these discoveries, the metabolic pathways leading to the different oxysterols are still largely unknown and the biosynthetic origin of several oxysterols remains unidentified. Earlier studies demonstrated that the glucocorticoid metabolizing enzymes, 11β-hydroxysteroid dehydrogenase (11β-HSD) types 1 and 2, interconvert 7-ketocholesterol (7kC) and 7β-hydroxycholesterol (7βOHC). We examined the role of 11β-HSDs in the enzymatic control of the intracellular availability of 7β,27-dihydroxycholesterol (7β27OHC), a retinoid-related orphan receptor γ (RORγ) ligand. We used microsomal preparations of cells expressing recombinant 11β-HSD1 and 11β-HSD2 to assess whether 7β27OHC and 7-keto,27-hydroxycholesterol (7k27OHC) are substrates of these enzymes. Binding of 7β27OHC and 7k27OHC to 11β-HSDs was studied by molecular modeling. To our knowledge, the stereospecific oxoreduction of 7k27OHC to 7β27OHC by human 11β-HSD1 and the reverse oxidation reaction of 7β27OHC to 7k27OHC by human 11β-HSD2 were demonstrated for the first time. Apparent enzyme affinities of 11β-HSDs for these novel substrates were equal to or higher than those of the glucocorticoids. This is supported by the fact that 7k27OHC and 7β27OHC are potent inhibitors of the 11β-HSD1-dependent oxoreduction of cortisone and the 11β-HSD2-dependent oxidation of cortisol, respectively. Furthermore, molecular docking calculations explained stereospecific enzyme activities. Finally, using an inducible RORγ reporter system, we showed that 11β-HSD1 and 11β-HSD2 controlled RORγ activity. These findings revealed a novel glucocorticoid-independent prereceptor regulation mechanism by 11β-HSDs that warrants further investigation.
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Affiliation(s)
- Katharina R Beck
- Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland
| | - Silvia G Inderbinen
- Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland
| | - Sharavan Kanagaratnam
- Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland
| | - Denise V Kratschmar
- Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland
| | - Anton M Jetten
- Immunity, Inflammation, and Disease Laboratory National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709
| | - Hideaki Yamaguchi
- Department of Applied Biological Chemistry Meijo University, Nagoya 468-8502, Japan
| | - Alex Odermatt
- Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, 4056 Basel, Switzerland.
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26
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Yang FC, Chiu PY, Chen Y, Mak TW, Chen NJ. TREM-1-dependent M1 macrophage polarization restores intestinal epithelium damaged by DSS-induced colitis by activating IL-22-producing innate lymphoid cells. J Biomed Sci 2019; 26:46. [PMID: 31189465 PMCID: PMC6560756 DOI: 10.1186/s12929-019-0539-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 05/28/2019] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Triggering receptor expressed on myeloid cells-1 (TREM-1) is highly expressed on macrophages in inflamed intestines and reportedly promotes inflammatory bowel disease (IBD) by augmenting pro-inflammatory responses. To study the mechanism mediated by TREM-1 on macrophages, we generated an independent TREM-1 deficient mouse. METHODS Acute colitis was induced in C57BL/6 and TREM-1-deficient mice by the administration of dextran sodium sulfate (DSS). Colonic lamina propria immune cell composition and cytokines were analyzed. An innate lymphoid cell (ILC) co-culture experiment with macrophages was used to analyze IL-22 levels. Exogenous IL-22 and TREM-1-expressing macrophages were supplied to TREM-1-deficient mice for examining their effects on intestinal barrier integrity. RESULTS In inflamed colons, TREM-1 loss compromised the activation of ILC3 and their production of IL-22, which is required for intestinal barrier integrity. ILC3-mediated IL-22 production depends on IL-1β secreted by M1-polarized macrophages, and we found that TREM-1 deficiency results in a decreased number of IL-1β producing-M1 macrophages in colons exposed to DSS. Accordingly, DSS-mediated damage was ameliorated by supplying exogenous IL-22 and TREM-1-expressing macrophages to TREM-1-deficient mice. CONCLUSIONS TREM-1 plays a crucial role in regulating IL-22 production by ILC3 through modulating M1-macrophage polarization during DSS-induced acute colitis.
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Affiliation(s)
- Fu-Chen Yang
- Institute of Microbiology and Immunology, School of Life Sciences, National Yang-Ming University, No.155, Sec.2, Linong Street, Taipei, Taiwan
| | - Po-Yuan Chiu
- Institute of Microbiology and Immunology, School of Life Sciences, National Yang-Ming University, No.155, Sec.2, Linong Street, Taipei, Taiwan
| | - Yun Chen
- Department of Surgery, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Tak W. Mak
- The Campbell Family Institute for Breast Cancer Research, Ontario Cancer Institute, University Health Network and Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 2C1 Canada
| | - Nien-Jung Chen
- Institute of Microbiology and Immunology, School of Life Sciences, National Yang-Ming University, No.155, Sec.2, Linong Street, Taipei, Taiwan
- Cancer Progression Research Center, National Yang-Ming University, Taipei, Taiwan
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27
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Shindo R, Ohmuraya M, Komazawa-Sakon S, Miyake S, Deguchi Y, Yamazaki S, Nishina T, Yoshimoto T, Kakuta S, Koike M, Uchiyama Y, Konishi H, Kiyama H, Mikami T, Moriwaki K, Araki K, Nakano H. Necroptosis of Intestinal Epithelial Cells Induces Type 3 Innate Lymphoid Cell-Dependent Lethal Ileitis. iScience 2019; 15:536-551. [PMID: 31132747 PMCID: PMC6538961 DOI: 10.1016/j.isci.2019.05.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 04/12/2019] [Accepted: 05/09/2019] [Indexed: 12/15/2022] Open
Abstract
A short form of cellular FLICE-inhibitory protein encoded by CFLARs promotes necroptosis. Although necroptosis is involved in various pathological conditions, the detailed mechanisms are not fully understood. Here we generated transgenic mice wherein CFLARs was integrated onto the X chromosome. All male CFLARs Tg mice died perinatally due to severe ileitis. Although necroptosis was observed in various tissues of CFLARs Tg mice, large numbers of intestinal epithelial cells (IECs) died by apoptosis. Deletion of Ripk3 or Mlkl, essential genes of necroptosis, prevented both necroptosis and apoptosis, and rescued lethality of CFLARs Tg mice. Type 3 innate lymphoid cells (ILC3s) were activated and recruited to the small intestine along with upregulation of interleukin-22 (Il22) in CFLARs Tg mice. Deletion of ILC3s or Il22 rescued lethality of CFLARs Tg mice by preventing apoptosis, but not necroptosis of IECs. Together, necroptosis-dependent activation of ILC3s induces lethal ileitis in an IL-22-dependent manner. CFLARs Tg mice develop severe ileitis in utero Intestinal epithelial cells die by apoptosis and necroptosis in CFLARs Tg mice Blockade of necroptosis rescues lethality of CFLARs Tg mice Necroptosis activates type 3 innate lymphoid cells, resulting in severe ileitis
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Affiliation(s)
- Ryodai Shindo
- Department of Biochemistry, Toho University School of Medicine, 5-21-16 Omori-Nishi, Ota-ku, Tokyo 143-8540, Japan
| | - Masaki Ohmuraya
- Department of Genetics, Hyogo College of Medicine, Nishinomiya, Hyogo 663-8501, Japan
| | - Sachiko Komazawa-Sakon
- Department of Biochemistry, Toho University School of Medicine, 5-21-16 Omori-Nishi, Ota-ku, Tokyo 143-8540, Japan
| | - Sanae Miyake
- Department of Biochemistry, Toho University School of Medicine, 5-21-16 Omori-Nishi, Ota-ku, Tokyo 143-8540, Japan
| | - Yutaka Deguchi
- Department of Biochemistry, Toho University School of Medicine, 5-21-16 Omori-Nishi, Ota-ku, Tokyo 143-8540, Japan
| | - Soh Yamazaki
- Department of Biochemistry, Toho University School of Medicine, 5-21-16 Omori-Nishi, Ota-ku, Tokyo 143-8540, Japan
| | - Takashi Nishina
- Department of Biochemistry, Toho University School of Medicine, 5-21-16 Omori-Nishi, Ota-ku, Tokyo 143-8540, Japan
| | - Takayuki Yoshimoto
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, 6-1-1 Shinjuku-ku, Tokyo 160-8402, Japan
| | - Soichiro Kakuta
- Department of Cellular Molecular Neuropathology, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Masato Koike
- Department of Cell Biology and Neuroscience, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Yasuo Uchiyama
- Department of Cellular Molecular Neuropathology, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Hiroyuki Konishi
- Department of Functional Anatomy and Neuroscience, Graduate School of Medicine, Nagoya University, 65 Tsurumaicho, Showa-ku, Nagoya 466-8560, Japan
| | - Hiroshi Kiyama
- Department of Functional Anatomy and Neuroscience, Graduate School of Medicine, Nagoya University, 65 Tsurumaicho, Showa-ku, Nagoya 466-8560, Japan
| | - Tetuo Mikami
- Department of Pathology, Toho University School of Medicine, 5-21-16 Omori-Nishi, Ota-ku, Tokyo 143-8540, Japan
| | - Kenta Moriwaki
- Department of Cell Biology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kimi Araki
- Institute of Resource Development and Analysis, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan
| | - Hiroyasu Nakano
- Department of Biochemistry, Toho University School of Medicine, 5-21-16 Omori-Nishi, Ota-ku, Tokyo 143-8540, Japan; Host Defense Research Center, Toho University School of Medicine, 5-21-16 Omori-Nishi, Ota-ku, Tokyo 143-8540, Japan.
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28
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Egg white peptide-based immunotherapy enhances vitamin A metabolism and induces RORγt+ regulatory T cells. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.11.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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Jetten AM, Takeda Y, Slominski A, Kang HS. Retinoic acid-related Orphan Receptor γ (RORγ): connecting sterol metabolism to regulation of the immune system and autoimmune disease. CURRENT OPINION IN TOXICOLOGY 2018; 8:66-80. [PMID: 29568812 DOI: 10.1016/j.cotox.2018.01.005] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cholesterol and its metabolites are bioactive lipids that interact with and regulate the activity of various proteins and signaling pathways that are implicated in the control of a variety of physiological and pathological processes. Recent studies revealed that retinoic acid-related orphan receptors, RORα and γ, members of the ligand-dependent nuclear receptor superfamily, exhibit quite a wide binding specificity for a number of sterols. Several cholesterol intermediates and metabolites function as natural ligands of RORα and RORγ and act as agonists or inverse agonists. Changes in cholesterol homeostasis that alter the level or type of sterol metabolites in cells, can either enhance or inhibit ROR transcriptional activity that subsequently result in changes in the physiological processes regulated by RORs, including various immune responses and metabolic pathways. Consequently, this might negatively or positively impact pathologies, in which RORs are implicated, such as autoimmune disease, inflammation, metabolic syndrome, cancer, and several neurological disorders. Best studied are the links between cholesterol metabolism, RORγt activity, and their regulation of Th17 differentiation and autoimmune disease. The discovery that Th17-dependent inflammation is significantly attenuated in RORγ-deficient mice in several experimental autoimmune disease models, initiated a search for ROR modulators that led to the identification of a number of small molecular weight RORγ inverse agonists. The inverse agonists suppress Th17 differentiation and IL-17 production and protect against autoimmunity. Together, these studies suggest that RORγt may provide an attractive therapeutic target in the management of several (inflammatory) diseases.
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Affiliation(s)
- Anton M Jetten
- Cell Biology Section, Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA
| | - Yukimasa Takeda
- Cell Biology Section, Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA
| | - Andrzej Slominski
- Department of Dermatology, Comprehensive Cancer Center Cancer Chemoprevention Program, University of Alabama at Birmingham, Birmingham, AL 35249, USA
| | - Hong Soon Kang
- Cell Biology Section, Immunity, Inflammation, and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA
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30
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Bryce PJ. Balancing Tolerance or Allergy to Food Proteins. Trends Immunol 2016; 37:659-667. [PMID: 27600681 DOI: 10.1016/j.it.2016.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/09/2016] [Accepted: 08/10/2016] [Indexed: 01/22/2023]
Abstract
Dietary proteins usually induce immune tolerance, but may trigger life-threatening immune responses in the case of food allergy. The associated type 2 immunity, linked with specific IgE production and the activation of mast cells and basophils, is well understood but the mechanisms related to preventing food allergy are still being deciphered. Recent insights into the mechanisms that regulate oral tolerance and dietary antigen sampling have revealed unique regulatory events that occur during early life and into adulthood. Drawing from both recent clinical and experimental discoveries, this article focuses on current evidence for how several key stages of life present mechanistic points that might participate in tipping the balance between food protein tolerance and allergy.
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Affiliation(s)
- Paul J Bryce
- Division of Allergy-Immunology, Department of Medicine, Northwestern Feinberg School of Medicine, 240 East Huron, Chicago, IL 60611, USA.
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