551
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Kim J, Choi SH, Kim YJ, Jeong HJ, Ryu JS, Lee HJ, Kim TW, Im SH, Oh JY, Kim MK. Clinical Effect of IRT-5 Probiotics on Immune Modulation of Autoimmunity or Alloimmunity in the Eye. Nutrients 2017; 9:nu9111166. [PMID: 29068389 PMCID: PMC5707638 DOI: 10.3390/nu9111166] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/20/2017] [Accepted: 10/23/2017] [Indexed: 12/14/2022] Open
Abstract
Background: Although the relation of the gut microbiota to a development of autoimmune and inflammatory diseases has been investigated in various animal models, there are limited studies that evaluate the effect of probiotics in the autoimmune eye disease. Therefore, we aimed to investigate the effect of IRT-5 probiotics consisting of Lactobacillus casei, Lactobacillus acidophilus, Lactobacillus reuteri, Bifidobacterium bifidum, and Streptococcus thermophilus on the autoimmunity of uveitis and dry eye and alloimmunity of corneal transplantation. Methods: Experimental autoimmune uveitis was induced by subcutaneous immunization with interphotoreceptor-binding protein and intraperitoneal injection of pertussis toxin in C57BL/6 (B6) mice. For an autoimmune dry eye model, 12-weeks-old NOD.B10.H2b mice were used. Donor cornea of B6 mice was transplanted into BALB/C mice. IRT-5 probiotics or phosphate buffered saline (PBS) were administered for three weeks immediately after induction of uveitis or transplantation. The inflammation score of the retinal tissues, dry eye manifestations (corneal staining and tear secretion), and graft survival were measured in each model. The changes of T cells were evaluated in drainage lymph nodes using fluorescence-activated cell sorting. Results: Retinal histology score in IRT-5 group of uveitis was lower than that in PBS group (p = 0.045). Ocular staining score was lower (p < 0.0001) and tear secretion was higher (p < 0.0001) in the IRT-5 group of NOD.B10.H2b mice than that in the PBS group. However, the graft survival in the IRT-5 group was not different from those of PBS group. The percentage of regulatory T cells was increased in the IRT-5-treated dry eye models (p = 0.032). The percentage of CD8+IL-17hi (p = 0.027) and CD8+ interferon gamma (IFNγ)hi cells (p = 0.022) were significantly decreased in the IRT-5-treated uveitis models and the percentage of CD8+IFNγhi cells was markedly reduced (p = 0.036) in IRT-5-treated dry eye model. Conclusion: Our results suggest that administration of IRT-5 probiotics may modulate clinical manifestations of autoimmunity in the eye, but not on alloimmunity of corneal transplantation.
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Affiliation(s)
- Jaeyoung Kim
- Laboratory of Ocular Regenerative Medicine and Immunology, Seoul Artificial Eye Center, Seoul National University Hospital Biomedical Research Institute, Seoul 03080, Korea.
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul 03080, Korea.
| | - Se Hyun Choi
- Laboratory of Ocular Regenerative Medicine and Immunology, Seoul Artificial Eye Center, Seoul National University Hospital Biomedical Research Institute, Seoul 03080, Korea.
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul 03080, Korea.
| | - Yu Jeong Kim
- Laboratory of Ocular Regenerative Medicine and Immunology, Seoul Artificial Eye Center, Seoul National University Hospital Biomedical Research Institute, Seoul 03080, Korea.
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul 03080, Korea.
| | - Hyun Jeong Jeong
- Laboratory of Ocular Regenerative Medicine and Immunology, Seoul Artificial Eye Center, Seoul National University Hospital Biomedical Research Institute, Seoul 03080, Korea.
| | - Jin Suk Ryu
- Laboratory of Ocular Regenerative Medicine and Immunology, Seoul Artificial Eye Center, Seoul National University Hospital Biomedical Research Institute, Seoul 03080, Korea.
| | - Hyun Ju Lee
- Laboratory of Ocular Regenerative Medicine and Immunology, Seoul Artificial Eye Center, Seoul National University Hospital Biomedical Research Institute, Seoul 03080, Korea.
| | - Tae Wan Kim
- Department of Ophthalmology, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul 07061, Korea.
| | - Sin-Hyeog Im
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang 37673, Korea.
- Academy of Immunology and Microbiology, Institute for Basic Science, Pohang 37673, Korea.
| | - Joo Youn Oh
- Laboratory of Ocular Regenerative Medicine and Immunology, Seoul Artificial Eye Center, Seoul National University Hospital Biomedical Research Institute, Seoul 03080, Korea.
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul 03080, Korea.
| | - Mee Kum Kim
- Laboratory of Ocular Regenerative Medicine and Immunology, Seoul Artificial Eye Center, Seoul National University Hospital Biomedical Research Institute, Seoul 03080, Korea.
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul 03080, Korea.
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552
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Abstract
OBJECTIVE Inadequate immunoregulation and elevated inflammation may be risk factors for posttraumatic stress disorder (PTSD), and microbial inputs are important determinants of immunoregulation; however, the association between the gut microbiota and PTSD is unknown. This study investigated the gut microbiome in a South African sample of PTSD-affected individuals and trauma-exposed (TE) controls to identify potential differences in microbial diversity or microbial community structure. METHODS The Clinician-Administered PTSD Scale for DSM-5 was used to diagnose PTSD according to Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria. Microbial DNA was extracted from stool samples obtained from 18 individuals with PTSD and 12 TE control participants. Bacterial 16S ribosomal RNA gene V3/V4 amplicons were generated and sequenced. Microbial community structure, α-diversity, and β-diversity were analyzed; random forest analysis was used to identify associations between bacterial taxa and PTSD. RESULTS There were no differences between PTSD and TE control groups in α- or β-diversity measures (e.g., α-diversity: Shannon index, t = 0.386, p = .70; β-diversity, on the basis of analysis of similarities: Bray-Curtis test statistic = -0.033, p = .70); however, random forest analysis highlighted three phyla as important to distinguish PTSD status: Actinobacteria, Lentisphaerae, and Verrucomicrobia. Decreased total abundance of these taxa was associated with higher Clinician-Administered PTSD Scale scores (r = -0.387, p = .035). CONCLUSIONS In this exploratory study, measures of overall microbial diversity were similar among individuals with PTSD and TE controls; however, decreased total abundance of Actinobacteria, Lentisphaerae, and Verrucomicrobia was associated with PTSD status.
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553
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Functional heterogeneity of gut-resident regulatory T cells. Clin Transl Immunology 2017; 6:e156. [PMID: 28983404 PMCID: PMC5628268 DOI: 10.1038/cti.2017.39] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 07/26/2017] [Accepted: 07/26/2017] [Indexed: 02/07/2023] Open
Abstract
Regulatory T cells (Treg cells) have a central role in the maintenance of intestinal homeostasis by restraining inappropriate immune responses in the healthy gut. Although distinct intestinal immune cell populations have been described to exhibit regulatory activity, several genetic and functional studies provided a strong evidence for a pivotal role of forkhead box P3 (Foxp3)+CD4+ Treg cells in prevention of dysregulated mucosal immune reactions and development of chronic immunological disorders such as celiac disease, food allergies and inflammatory bowel disease. Treg cells provide an important layer of intestinal defense by suppressing immune responses against innocuous food and commensal-derived antigens. Recent functional studies suggest that Treg cells are also involved in several other processes such as controlling microbial diversity in the gut, immunoglobulin A selection and supporting tissue repair in response to intestinal tissue damage. A better understanding of the functional heterogeneity as well as of the molecular signals, which regulate distinct intestinal Treg cell subsets, will encourage strategies aimed at transplanting the optimal Treg cell subset for cellular therapy in humans.
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554
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Vasanthakumar A, Liao Y, Teh P, Pascutti MF, Oja AE, Garnham AL, Gloury R, Tempany JC, Sidwell T, Cuadrado E, Tuijnenburg P, Kuijpers TW, Lalaoui N, Mielke LA, Bryant VL, Hodgkin PD, Silke J, Smyth GK, Nolte MA, Shi W, Kallies A. The TNF Receptor Superfamily-NF-κB Axis Is Critical to Maintain Effector Regulatory T Cells in Lymphoid and Non-lymphoid Tissues. Cell Rep 2017; 20:2906-2920. [PMID: 28889989 DOI: 10.1016/j.celrep.2017.08.068] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 08/16/2017] [Accepted: 08/23/2017] [Indexed: 12/22/2022] Open
Abstract
After exiting the thymus, Foxp3+ regulatory T (Treg) cells undergo further differentiation in the periphery, resulting in the generation of mature, fully suppressive effector (e)Treg cells in a process dependent on TCR signaling and the transcription factor IRF4. Here, we show that tumor necrosis factor receptor superfamily (TNFRSF) signaling plays a crucial role in the development and maintenance of eTreg cells. TNFRSF signaling activated the NF-κB transcription factor RelA, which was required to maintain eTreg cells in lymphoid and non-lymphoid tissues, including RORγt+ Treg cells in the small intestine. In response to TNFRSF signaling, RelA regulated basic cellular processes, including cell survival and proliferation, but was dispensable for IRF4 expression or DNA binding, indicating that both pathways operated independently. Importantly, mutations in the RelA binding partner NF-κB1 compromised eTreg cells in humans, suggesting that the TNFRSF-NF-κB axis was required in a non-redundant manner to maintain eTreg cells in mice and humans.
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Affiliation(s)
- Ajithkumar Vasanthakumar
- Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia.
| | - Yang Liao
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Peggy Teh
- Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia; Alfred Health and Western Health, Melbourne, Australia
| | - Maria F Pascutti
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands
| | - Anna E Oja
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands
| | - Alexandra L Garnham
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Renee Gloury
- Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia
| | - Jessica C Tempany
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Tom Sidwell
- Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia
| | - Eloy Cuadrado
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands; Department of Pediatric Hematology, Immunology, and Infectious Diseases, Emma Children's Hospital, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands
| | - Paul Tuijnenburg
- Department of Pediatric Hematology, Immunology, and Infectious Diseases, Emma Children's Hospital, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands
| | - Taco W Kuijpers
- Department of Pediatric Hematology, Immunology, and Infectious Diseases, Emma Children's Hospital, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands
| | - Najoua Lalaoui
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Cell Signalling and Cell Death Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Lisa A Mielke
- Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; Department of Medical Biology, University of Melbourne, Melbourne, Australia
| | - Vanessa L Bryant
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Philip D Hodgkin
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - John Silke
- Department of Medical Biology, University of Melbourne, Melbourne, Australia; Cell Signalling and Cell Death Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Gordon K Smyth
- Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; The Department of Mathematics and Statistics, University of Melbourne, Melbourne, Australia
| | - Martijn A Nolte
- Department of Hematopoiesis, Sanquin Research and Landsteiner Laboratory, Academic Medical Center (AMC), University of Amsterdam (UvA), Amsterdam, the Netherlands
| | - Wei Shi
- Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; Department of Computing and Information Systems, University of Melbourne, Melbourne, Australia
| | - Axel Kallies
- Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia; The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Australia.
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555
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Stedtfeld RD, Chai B, Crawford RB, Stedtfeld TM, Williams MR, Xiangwen S, Kuwahara T, Cole JR, Kaminski NE, Tiedje JM, Hashsham SA. Modulatory Influence of Segmented Filamentous Bacteria on Transcriptomic Response of Gnotobiotic Mice Exposed to TCDD. Front Microbiol 2017; 8:1708. [PMID: 28936204 PMCID: PMC5594080 DOI: 10.3389/fmicb.2017.01708] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 08/23/2017] [Indexed: 12/17/2022] Open
Abstract
Environmental toxicants such as 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), an aryl hydrocarbon receptor (AhR), are known to induce host toxicity and structural shifts in the gut microbiota. Key bacterial populations with similar or opposing functional responses to AhR ligand exposure may potentially help regulate expression of genes associated with immune dysfunction. To examine this question and the mechanisms for AhR ligand-induced bacterial shifts, C57BL/6 gnotobiotic mice were colonized with and without segmented filamentous bacteria (SFB) – an immune activator. Mice were also colonized with polysaccharide A producing Bacteroides fragilis – an immune suppressor to serve as a commensal background. Following colonization, mice were administered TCDD (30 μg/kg) every 4 days for 28 days by oral gavage. Quantified with the nCounter® mouse immunology panel, opposing responses in ileal gene expression (e.g., genes associated with T-cell differentiation via the class II major histocompatibility complex) as a result of TCDD dosing and SFB colonization were observed. Genes that responded to TCDD in the presence of SFB did not show a significant response in the absence of SFB, and vice versa. Regulatory T-cells examined in the mesenteric lymph-nodes, spleen, and blood were also less impacted by TCDD in mice colonized with SFB. TCDD-induced shifts in abundance of SFB and B. fragilis compared with previous studies in mice with a traditional gut microbiome. With regard to the mouse model colonized with individual populations, results indicate that TCDD-induced host response was significantly modulated by the presence of SFB in the gut microbiome, providing insight into therapeutic potential between AhR ligands and key commensals.
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Affiliation(s)
- Robert D Stedtfeld
- Department of Civil and Environmental Engineering, East LansingMI, United States
| | - Benli Chai
- Center for Microbial Ecology, Michigan State University, East LansingMI, United States
| | - Robert B Crawford
- Institute for Integrative Toxicology, Michigan State University, East LansingMI, United States.,Department of Pharmacology and Toxicology, Michigan State University, East LansingMI, United States
| | - Tiffany M Stedtfeld
- Department of Civil and Environmental Engineering, East LansingMI, United States
| | - Maggie R Williams
- Department of Civil and Environmental Engineering, East LansingMI, United States
| | - Shao Xiangwen
- Department of Civil and Environmental Engineering, East LansingMI, United States
| | - Tomomi Kuwahara
- Department of Molecular Bacteriology, Institute of Health Biosciences, University of Tokushima Graduate SchoolTokushima, Japan
| | - James R Cole
- Center for Microbial Ecology, Michigan State University, East LansingMI, United States
| | - Norbert E Kaminski
- Institute for Integrative Toxicology, Michigan State University, East LansingMI, United States.,Department of Pharmacology and Toxicology, Michigan State University, East LansingMI, United States
| | - James M Tiedje
- Center for Microbial Ecology, Michigan State University, East LansingMI, United States
| | - Syed A Hashsham
- Department of Civil and Environmental Engineering, East LansingMI, United States.,Center for Microbial Ecology, Michigan State University, East LansingMI, United States
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556
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McCoy KD, Ronchi F, Geuking MB. Host-microbiota interactions and adaptive immunity. Immunol Rev 2017; 279:63-69. [DOI: 10.1111/imr.12575] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Kathy D. McCoy
- Department of Physiology and Pharmacology; Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases; Cumming School of Medicine; University of Calgary; Calgary AB Canada
| | - Francesca Ronchi
- Maurice Müller Laboratories; Department of Clinical Research (DKF); UVCM; University Hospital; Bern Switzerland
| | - Markus B. Geuking
- Department of Microbiology, Immunology and Infectious Diseases; Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases; Cumming School of Medicine; University of Calgary; Calgary AB Canada
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557
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Probiotic species in the modulation of the anticancer immune response. Semin Cancer Biol 2017; 46:182-190. [PMID: 28844794 DOI: 10.1016/j.semcancer.2017.08.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 07/29/2017] [Accepted: 08/18/2017] [Indexed: 12/13/2022]
Abstract
Mounting evidences are supporting a key role of distinct gut bacteria in the occurrence and progression of intestinal and extra-intestinal tumors. More importantly, it has been recently demonstrated that some gut bacteria strains synergize with largely-used anticancer drugs as alkylating or immune checkpoint blockade agents thus optimizing the immune response against multiple solid cancers. However, the exact role played by each gut bacterium in cancer occurrence and response to therapy is still in its infancy; and the current knowledge, although exciting, still needs to be transferred from mice models to human beings. Here, the advances in the understanding of how gut microbes and immune response shape each other in a cancer context are reviewed together with the implications of these finding for future antitumor therapy. Herein, the most important bacteria strains, able to boost the immune response triggered by anticancer drugs, together with their mechanism of action, whenever known, have been surveyed. It is reasonable to think that cocktails of beneficial bacteria together with an ad hoc diet or food supplements may be used as novel anticancer adjuvant agents in future therapeutic regimens.
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558
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Grigg JB, Sonnenberg GF. Host-Microbiota Interactions Shape Local and Systemic Inflammatory Diseases. THE JOURNAL OF IMMUNOLOGY 2017; 198:564-571. [PMID: 28069751 DOI: 10.4049/jimmunol.1601621] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 10/31/2016] [Indexed: 02/06/2023]
Abstract
Recent advances in understanding how the mammalian immune system and intestinal microbiota functionally interact have yielded novel insights for human health and disease. Modern technologies to quantitatively measure specific members and functional characteristics of the microbiota in the gastrointestinal tract, along with fundamental and emerging concepts in the field of immunology, have revealed numerous ways in which host-microbiota interactions proceed beneficially, neutrally, or detrimentally for mammalian hosts. It is clear that the gut microbiota has a strong influence on the shape and quality of the immune system; correspondingly, the immune system guides the composition and localization of the microbiota. In the following review, we examine the evidence that these interactions encompass homeostasis and inflammation in the intestine and, in certain cases, extraintestinal tissues. Lastly, we discuss translational therapies stemming from research on host-microbiota interactions that could be used for the treatment of chronic inflammatory diseases.
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Affiliation(s)
- John B Grigg
- Gastroenterology and Hepatology Division, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10021; Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY 10065; and The Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY 10021
| | - Gregory F Sonnenberg
- Gastroenterology and Hepatology Division, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10021; Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY 10065; and The Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY 10021
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559
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Plunkett CH, Nagler CR. The Influence of the Microbiome on Allergic Sensitization to Food. THE JOURNAL OF IMMUNOLOGY 2017; 198:581-589. [PMID: 28069753 DOI: 10.4049/jimmunol.1601266] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 08/23/2016] [Indexed: 02/06/2023]
Abstract
The alarming increase in the incidence and severity of food allergies has coincided with lifestyle changes in Western societies, such as dietary modifications and increased antibiotic use. These demographic shifts have profoundly altered the coevolved relationship between host and microbiota, depleting bacterial populations critical for the maintenance of mucosal homeostasis. There is increasing evidence that the dysbiosis associated with sensitization to food fails to stimulate protective tolerogenic pathways, leading to the development of the type 2 immune responses that characterize allergic disease. Defining the role of beneficial allergy-protective members of the microbiota in the regulation of tolerance to food has exciting potential for new interventions to treat dietary allergies by modulation of the microbiota.
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Affiliation(s)
| | - Cathryn R Nagler
- Department of Pathology, The University of Chicago, Chicago, IL 60637; and .,Committee on Immunology, The University of Chicago, Chicago, IL 60637
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560
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Genome-wide DNA-methylation landscape defines specialization of regulatory T cells in tissues. Nat Immunol 2017; 18:1160-1172. [PMID: 28783152 PMCID: PMC5912503 DOI: 10.1038/ni.3799] [Citation(s) in RCA: 177] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 06/23/2017] [Indexed: 12/15/2022]
Abstract
Regulatory T cells (Treg) perform two distinct functions: they maintain self-tolerance and support organ homeostasis by differentiation into specialized tissue Treg cells. We now report that epigenetic modifications define molecular characteristics of tissue Treg cells. Tagmentation-based whole-genome bisulfite sequencing of tissue and lymphoid T cells revealed more than 11,000 differentially methylated regions. Similarities of the epigenetic landscape led to the identification of a common tissue Treg population, present in many organs and characterized by gain and loss of DNA methylation, including many TH2-associated sites such as the IL-33 receptor ST2, and the production of tissue-regenerative factors. Furthermore, this ST2-expressing population (which we term here tisTregST2) was dependent on the transcriptional regulator BATF and could be expanded by IL-33. Thus, tissue Treg cells integrate different waves of epigenetic reprogramming which define their tissue-restricted specializations.
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561
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Das UN. Is There a Role for Bioactive Lipids in the Pathobiology of Diabetes Mellitus? Front Endocrinol (Lausanne) 2017; 8:182. [PMID: 28824543 PMCID: PMC5539435 DOI: 10.3389/fendo.2017.00182] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 07/10/2017] [Indexed: 12/12/2022] Open
Abstract
Inflammation, decreased levels of circulating endothelial nitric oxide (eNO) and brain-derived neurotrophic factor (BDNF), altered activity of hypothalamic neurotransmitters (including serotonin and vagal tone) and gut hormones, increased concentrations of free radicals, and imbalance in the levels of bioactive lipids and their pro- and anti-inflammatory metabolites have been suggested to play a role in diabetes mellitus (DM). Type 1 diabetes mellitus (type 1 DM) is due to autoimmune destruction of pancreatic β cells because of enhanced production of IL-6 and tumor necrosis factor-α (TNF-α) and other pro-inflammatory cytokines released by immunocytes infiltrating the pancreas in response to unknown exogenous and endogenous toxin(s). On the other hand, type 2 DM is due to increased peripheral insulin resistance secondary to enhanced production of IL-6 and TNF-α in response to high-fat and/or calorie-rich diet (rich in saturated and trans fats). Type 2 DM is also associated with significant alterations in the production and action of hypothalamic neurotransmitters, eNO, BDNF, free radicals, gut hormones, and vagus nerve activity. Thus, type 1 DM is because of excess production of pro-inflammatory cytokines close to β cells, whereas type 2 DM is due to excess of pro-inflammatory cytokines in the systemic circulation. Hence, methods designed to suppress excess production of pro-inflammatory cytokines may form a new approach to prevent both type 1 and type 2 DM. Roux-en-Y gastric bypass and similar surgeries ameliorate type 2 DM, partly by restoring to normal: gut hormones, hypothalamic neurotransmitters, eNO, vagal activity, gut microbiota, bioactive lipids, BDNF production in the gut and hypothalamus, concentrations of cytokines and free radicals that results in resetting glucose-stimulated insulin production by pancreatic β cells. Our recent studies suggested that bioactive lipids, such as arachidonic acid, eicosapentaneoic acid, and docosahexaenoic acid (which are unsaturated fatty acids) and their anti-inflammatory metabolites: lipoxin A4, resolvins, protectins, and maresins, may have antidiabetic actions. These bioactive lipids have anti-inflammatory actions, enhance eNO, BDNF production, restore hypothalamic dysfunction, enhance vagal tone, modulate production and action of ghrelin, leptin and adiponectin, and influence gut microbiota that may explain their antidiabetic action. These pieces of evidence suggest that methods designed to selectively deliver bioactive lipids to pancreatic β cells, gut, liver, and muscle may prevent type 1 and type 2 DM.
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Affiliation(s)
- Undurti N. Das
- BioScience Research Centre, Department of Medicine, Gayatri Vidya Parishad Hospital, GVP College of Engineering Campus, Visakhapatnam, India
- UND Life Sciences, Battle Ground, WA, United States
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562
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Role of the intestinal mucosa in acute gastrointestinal GVHD. Blood 2017; 128:2395-2402. [PMID: 27856471 DOI: 10.1182/blood-2016-06-716738] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 09/14/2016] [Indexed: 12/11/2022] Open
Abstract
Intestinal graft-versus-host disease (GVHD) remains a significant obstacle to the success of allogeneic hematopoietic cell transplantation. The intestinal mucosa comprises the inner lining of the intestinal tract and maintains close proximity with commensal microbes that reside within the intestinal lumen. Recent advances have significantly improved our understanding of the interactions between the intestinal mucosa and the enteric microbiota. Changes in host mucosal tissue and commensals posttransplant have been actively investigated, and provocative insights into mucosal immunity and the enteric microbiota are now being translated into clinical trials of novel approaches for preventing and treating acute GVHD. In this review, we summarize recent findings related to aspects of the intestinal mucosa during acute GVHD.
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563
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Hayatsu N, Miyao T, Tachibana M, Murakami R, Kimura A, Kato T, Kawakami E, Endo TA, Setoguchi R, Watarai H, Nishikawa T, Yasuda T, Yoshida H, Hori S. Analyses of a Mutant Foxp3 Allele Reveal BATF as a Critical Transcription Factor in the Differentiation and Accumulation of Tissue Regulatory T Cells. Immunity 2017; 47:268-283.e9. [PMID: 28778586 DOI: 10.1016/j.immuni.2017.07.008] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 05/02/2017] [Accepted: 07/10/2017] [Indexed: 12/25/2022]
Abstract
Foxp3 controls the development and function of regulatory T (Treg) cells, but it remains elusive how Foxp3 functions in vivo. Here, we established mouse models harboring three unique missense Foxp3 mutations that were identified in patients with the autoimmune disease IPEX. The I363V and R397W mutations were loss-of-function mutations, causing multi-organ inflammation by globally compromising Treg cell physiology. By contrast, the A384T mutation induced a distinctive tissue-restricted inflammation by specifically impairing the ability of Treg cells to compete with pathogenic T cells in certain non-lymphoid tissues. Mechanistically, repressed BATF expression contributed to these A384T effects. At the molecular level, the A384T mutation altered Foxp3 interactions with its specific target genes including Batf by broadening its DNA-binding specificity. Our findings identify BATF as a critical regulator of tissue Treg cells and suggest that sequence-specific perturbations of Foxp3-DNA interactions can influence specific facets of Treg cell physiology and the immunopathologies they regulate.
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Affiliation(s)
- Norihito Hayatsu
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Takahisa Miyao
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Masashi Tachibana
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Ryuichi Murakami
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan; Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan
| | - Akihiko Kimura
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Takako Kato
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Eiryo Kawakami
- Laboratory for Disease Systems Modeling, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan; Disease Biology Group, RIKEN Medical Sciences Innovation Hub Program, Kanagawa 230-0045, Japan
| | - Takaho A Endo
- Laboratory for Integrative Genomics, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Ruka Setoguchi
- Laboratory for Immunogenetics, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Hiroshi Watarai
- Division of Stem Cell Cellomics, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Sciences, The University of Tokyo, Tokyo 108-8639, Japan
| | - Takeshi Nishikawa
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Takuwa Yasuda
- Laboratory for Immunogenetics, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Hisahiro Yoshida
- Laboratory for Immunogenetics, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Shohei Hori
- Laboratory for Immune Homeostasis, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan; Laboratory of Immunology and Microbiology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo 113-0033, Japan.
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564
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Moingeon P, Mascarell L. Differences and similarities between sublingual immunotherapy of allergy and oral tolerance. Semin Immunol 2017; 30:52-60. [PMID: 28760498 DOI: 10.1016/j.smim.2017.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 07/13/2017] [Indexed: 12/27/2022]
Abstract
Allergen immunotherapy is the only treatment altering the natural course of IgE-mediated allergies. Whereas the subcutaneous route for immunotherapy (SCIT) has been historically considered as a reference, we discuss herein the relative advantages of the sublingual and oral routes as alternatives to SCIT in order to elicit allergen-specific tolerance. The buccal and gut immune systems are similarly organized to favor immune tolerance to antigens/allergens, due to the presence of tolerogenic dendritic cells and macrophages promoting the differentiation of CD4+ regulatory T cells. Sublingual immunotherapy (SLIT) is now established as a valid treatment option, with clinical efficacy demonstrated in allergic rhinoconjunctivitis (to either grass, tree, weed pollens or mite allergens) and encouraging results obtained in the management of mild/moderate allergic asthma. While still exploratory, oral immunotherapy (OIT) has shown promising results in the desensitization of patients with food allergies. We review at both biological and clinical levels the perspectives currently pursued for those two mucosal routes.
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Affiliation(s)
- Philippe Moingeon
- Research Department, Stallergenes Greer, 6 rue Alexis de Tocqueville, 92160 Antony, France.
| | - Laurent Mascarell
- Research Department, Stallergenes Greer, 6 rue Alexis de Tocqueville, 92160 Antony, France
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565
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Müller V, de Boer RJ, Bonhoeffer S, Szathmáry E. An evolutionary perspective on the systems of adaptive immunity. Biol Rev Camb Philos Soc 2017; 93:505-528. [PMID: 28745003 DOI: 10.1111/brv.12355] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 06/28/2017] [Accepted: 06/30/2017] [Indexed: 12/22/2022]
Abstract
We propose an evolutionary perspective to classify and characterize the diverse systems of adaptive immunity that have been discovered across all major domains of life. We put forward a new function-based classification according to the way information is acquired by the immune systems: Darwinian immunity (currently known from, but not necessarily limited to, vertebrates) relies on the Darwinian process of clonal selection to 'learn' by cumulative trial-and-error feedback; Lamarckian immunity uses templated targeting (guided adaptation) to internalize heritable information on potential threats; finally, shotgun immunity operates through somatic mechanisms of variable targeting without feedback. We argue that the origin of Darwinian (but not Lamarckian or shotgun) immunity represents a radical innovation in the evolution of individuality and complexity, and propose to add it to the list of major evolutionary transitions. While transitions to higher-level units entail the suppression of selection at lower levels, Darwinian immunity re-opens cell-level selection within the multicellular organism, under the control of mechanisms that direct, rather than suppress, cell-level evolution for the benefit of the individual. From a conceptual point of view, the origin of Darwinian immunity can be regarded as the most radical transition in the history of life, in which evolution by natural selection has literally re-invented itself. Furthermore, the combination of clonal selection and somatic receptor diversity enabled a transition from limited to practically unlimited capacity to store information about the antigenic environment. The origin of Darwinian immunity therefore comprises both a transition in individuality and the emergence of a new information system - the two hallmarks of major evolutionary transitions. Finally, we present an evolutionary scenario for the origin of Darwinian immunity in vertebrates. We propose a revival of the concept of the 'Big Bang' of vertebrate immunity, arguing that its origin involved a 'difficult' (i.e. low-probability) evolutionary transition that might have occurred only once, in a common ancestor of all vertebrates. In contrast to the original concept, we argue that the limiting innovation was not the generation of somatic diversity, but the regulatory circuitry needed for the safe operation of amplifiable immune responses with somatically acquired targeting. Regulatory complexity increased abruptly by genomic duplications at the root of the vertebrate lineage, creating a rare opportunity to establish such circuitry. We discuss the selection forces that might have acted at the origin of the transition, and in the subsequent stepwise evolution leading to the modern immune systems of extant vertebrates.
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Affiliation(s)
- Viktor Müller
- Parmenides Center for the Conceptual Foundations of Science, 82049 Pullach/Munich, Germany.,Department of Plant Systematics, Ecology and Theoretical Biology, Institute of Biology, Eötvös Loránd University, 1117 Budapest, Hungary.,Evolutionary Systems Research Group, MTA Centre for Ecological Research, 8237 Tihany, Hungary
| | - Rob J de Boer
- Theoretical Biology, Department of Biology, Utrecht University, 3584 CH Utrecht, The Netherlands
| | - Sebastian Bonhoeffer
- Institute of Integrative Biology, Department of Environmental Systems Science, ETH Zurich, 8092 Zurich, Switzerland
| | - Eörs Szathmáry
- Parmenides Center for the Conceptual Foundations of Science, 82049 Pullach/Munich, Germany.,Department of Plant Systematics, Ecology and Theoretical Biology, Institute of Biology, Eötvös Loránd University, 1117 Budapest, Hungary.,Evolutionary Systems Research Group, MTA Centre for Ecological Research, 8237 Tihany, Hungary
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566
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Abstract
Studying the interactions between commensal microbes and host intestinal tissue networks is challenging due to the complexity and inaccessibility of the system. A recent study reports a novel organ culture system that will enhance our ability to dissect these interactions.
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Affiliation(s)
- Ivaylo I Ivanov
- Department of Microbiology and Immunology, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA.
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567
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Whitaker WR, Shepherd ES, Sonnenburg JL. Tunable Expression Tools Enable Single-Cell Strain Distinction in the Gut Microbiome. Cell 2017; 169:538-546.e12. [PMID: 28431251 DOI: 10.1016/j.cell.2017.03.041] [Citation(s) in RCA: 142] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 01/28/2017] [Accepted: 03/27/2017] [Indexed: 01/07/2023]
Abstract
Applying synthetic biology to engineer gut-resident microbes provides new avenues to investigate microbe-host interactions, perform diagnostics, and deliver therapeutics. Here, we describe a platform for engineering Bacteroides, the most abundant genus in the Western microbiota, which includes a process for high-throughput strain modification. We have identified a novel phage promoter and translational tuning strategy and achieved an unprecedented level of expression that enables imaging of fluorescent-protein-expressing Bacteroides stably colonizing the mouse gut. A detailed characterization of the phage promoter has provided a set of constitutive promoters that span over four logs of strength without detectable fitness burden within the gut over 14 days. These promoters function predictably over a 1,000,000-fold expression range in phylogenetically diverse Bacteroides species. With these promoters, unique fluorescent signatures were encoded to allow differentiation of six species within the gut. Fluorescent protein-based differentiation of isogenic strains revealed that priority of gut colonization determines colonic crypt occupancy.
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Affiliation(s)
- Weston R Whitaker
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA; Novome Biotechnologies, 100 Kimball Way, South San Francisco, San Francisco, CA 94080, USA
| | - Elizabeth Stanley Shepherd
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Justin L Sonnenburg
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA 94305, USA.
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568
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Fang D, Zhu J. Dynamic balance between master transcription factors determines the fates and functions of CD4 T cell and innate lymphoid cell subsets. J Exp Med 2017. [PMID: 28630089 PMCID: PMC5502437 DOI: 10.1084/jem.20170494] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Fang and Zhu discuss similarities and differences between CD4 T cell and ILC subsets and the master transcription factors that determine the heterogeneity and plasticity of these subsets. CD4 T cells, including T regulatory cells (Treg cells) and effector T helper cells (Th cells), and recently identified innate lymphoid cells (ILCs) play important roles in host defense and inflammation. Both CD4 T cells and ILCs can be classified into distinct lineages based on their functions and the expression of lineage-specific genes, including those encoding effector cytokines, cell surface markers, and key transcription factors. It was first recognized that each lineage expresses a specific master transcription factor and the expression of these factors is mutually exclusive because of cross-regulation among these factors. However, recent studies indicate that the master regulators are often coexpressed. Furthermore, the expression of master regulators can be dynamic and quantitative. In this review, we will first discuss similarities and differences between the development and functions of CD4 T cell and ILC subsets and then summarize recent literature on quantitative, dynamic, and cell type–specific balance between the master transcription factors in determining heterogeneity and plasticity of these subsets.
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Affiliation(s)
- Difeng Fang
- Molecular and Cellular Immunoregulation Section, Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Jinfang Zhu
- Molecular and Cellular Immunoregulation Section, Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
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569
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Nakamura YK, Metea C, Karstens L, Asquith M, Gruner H, Moscibrocki C, Lee I, Brislawn CJ, Jansson JK, Rosenbaum JT, Lin P. Gut Microbial Alterations Associated With Protection From Autoimmune Uveitis. Invest Ophthalmol Vis Sci 2017; 57:3747-58. [PMID: 27415793 PMCID: PMC4960998 DOI: 10.1167/iovs.16-19733] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Purpose To investigate the contribution of the gut microbiota to the pathogenesis of uveitis. Methods Experimental autoimmune uveitis (EAU) in B10.RIII mice was induced using interphotoreceptor binding protein peptide. Mice were treated with oral or intraperitoneal (IP) antibiotics. Effector (Teff) and regulatory (Treg) T lymphocytes were identified using flow cytometry; 16S rRNA gene sequencing and qPCR were performed on gastrointestinal (GI) contents. Results Broad-spectrum (four antibiotics given simultaneously) oral, but not IP, antibiotics reduced mean uveitis clinical scores significantly compared with water-treated animals (0.5 vs. 3.0, P < 0.0001 for oral; 3.4 vs. 3.4, P > 0.99 for IP). Both oral metronidazole (P = 0.02) and vancomycin (P < 0.0001) alone decreased inflammation, whereas neomycin (P = 0.7) and ampicillin (P = 0.4) did not change mean uveitis scores. Oral broad-spectrum antibiotics increased Tregs in the GI lamina propria of EAU animals at 1 week, and in extraintestinal lymphoid tissues later, whereas Teff and inflammatory cytokines were reduced. 16S sequencing of GI contents revealed altered microbiota in immunized mice compared with nonimmunized mice, and microbial diversity clustering in EAU mice treated with uveitis-protective antibiotics. Experimental autoimmune uveitis mice also demonstrated gut microbial diversity clustering associated with clinical score severity. Conclusions Oral antibiotics modulate the severity of inducible EAU by increasing Tregs in the gut and extraintestinal tissues, as well as decreasing effector T cells and cytokines. 16S sequencing suggests that there may be protective and, conversely, potentially uveitogenic, gut microbiota. These findings may lead to a better understanding of how uveitis can be treated or prevented by modulating the gut microbiome.
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Affiliation(s)
- Yukiko K Nakamura
- Casey Eye Institute Oregon Health and Science University, Portland, Oregon, United States
| | - Christina Metea
- Casey Eye Institute Oregon Health and Science University, Portland, Oregon, United States
| | - Lisa Karstens
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health and Science University, Portland, Oregon, United States
| | - Mark Asquith
- Division of Rheumatology, Department of Medicine, Oregon Health and Science University, Portland, Oregon, United States
| | - Henry Gruner
- Casey Eye Institute Oregon Health and Science University, Portland, Oregon, United States
| | - Cathleen Moscibrocki
- Casey Eye Institute Oregon Health and Science University, Portland, Oregon, United States
| | - Iris Lee
- Casey Eye Institute Oregon Health and Science University, Portland, Oregon, United States
| | - Colin J Brislawn
- Pacific Northwest National Laboratory, Richland, Washington, United States
| | - Janet K Jansson
- Pacific Northwest National Laboratory, Richland, Washington, United States
| | - James T Rosenbaum
- Casey Eye Institute Oregon Health and Science University, Portland, Oregon, United States 3Division of Rheumatology, Department of Medicine, Oregon Health and Science University, Portland, Oregon, United States 5Devers Eye Institute, Portland, Oregon, Uni
| | - Phoebe Lin
- Casey Eye Institute Oregon Health and Science University, Portland, Oregon, United States
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570
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Stability and function of regulatory T cells expressing the transcription factor T-bet. Nature 2017; 546:421-425. [PMID: 28607488 PMCID: PMC5482236 DOI: 10.1038/nature22360] [Citation(s) in RCA: 258] [Impact Index Per Article: 36.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 04/11/2017] [Indexed: 12/24/2022]
Abstract
Adaptive immune responses are tailored to different types of pathogens through differentiation of naïve CD4 T cells into functionally distinct subsets of effector T cells (TH1, TH2, and TH17) defined by expression of key transcription factors (TFs)1. Regulatory T (Treg) cells comprise a distinct anti-inflammatory lineage specified by the X-linked TF Foxp32, 3. Paradoxically, some activated Treg cells express the aforementioned effector CD4 T cell TFs, which have been suggested to endow Treg cells with enhanced suppressive capacity4, 5, 6. Whether expression of these factors in Treg cells—akin to effector T cells—is indicative of heterogeneity of functionally discrete and stable differentiation states, or conversely may be readily reversible, is unknown. Here, we demonstrate that in Treg cells expression of the TH1-associated TF T-bet, induced at steady state and following infection, gradually becomes highly stable even under non-permissive conditions. Loss-of-function or elimination of T-bet-expressing Treg cells—but not of T-bet in Treg cells—resulted in severe TH1 autoimmunity. Conversely, following depletion of T-bet-negative Treg cells, remaining T-bet+ cells specifically inhibited TH1 and CD8 T cell activation in agreement with their co-localization with T-bet+ effector T cells. These results suggest an essential immunosuppressive function for T-bet+ Treg cells and indicate that Treg cell functional heterogeneity is a critical feature of immune tolerance.
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571
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Agace WW, McCoy KD. Regionalized Development and Maintenance of the Intestinal Adaptive Immune Landscape. Immunity 2017; 46:532-548. [PMID: 28423335 DOI: 10.1016/j.immuni.2017.04.004] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 04/03/2017] [Accepted: 04/04/2017] [Indexed: 12/14/2022]
Abstract
The intestinal immune system has the daunting task of protecting us from pathogenic insults while limiting inflammatory responses against the resident commensal microbiota and providing tolerance to food antigens. This role is particularly impressive when one considers the vast mucosal surface and changing landscape that the intestinal immune system must monitor. In this review, we highlight regional differences in the development and composition of the adaptive immune landscape of the intestine and the impact of local intrinsic and environmental factors that shape this process. To conclude, we review the evidence for a critical window of opportunity for early-life exposures that affect immune development and alter disease susceptibility later in life.
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Affiliation(s)
- William W Agace
- Division of Immunology and Vaccinology, National Veterinary Institute, Technical University of Denmark (DTU), 2800 Kongens Lyngby, Denmark; Immunology Section, Department of Experimental Medical Science, Lund University, BMC D14, Sölvegatan 19, 221 84 Lund, Sweden.
| | - Kathy D McCoy
- Department of Physiology and Pharmacology and Calvin, Phoebe and Joan Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB T2N 4N1, Canada.
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572
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Belkaid Y, Harrison OJ. Homeostatic Immunity and the Microbiota. Immunity 2017; 46:562-576. [PMID: 28423337 DOI: 10.1016/j.immuni.2017.04.008] [Citation(s) in RCA: 712] [Impact Index Per Article: 101.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 04/04/2017] [Accepted: 04/05/2017] [Indexed: 12/27/2022]
Abstract
The microbiota plays a fundamental role in the induction, education, and function of the host immune system. In return, the host immune system has evolved multiple means by which to maintain its symbiotic relationship with the microbiota. The maintenance of this dialogue allows the induction of protective responses to pathogens and the utilization of regulatory pathways involved in the sustained tolerance to innocuous antigens. The ability of microbes to set the immunological tone of tissues, both locally and systemically, requires tonic sensing of microbes and complex feedback loops between innate and adaptive components of the immune system. Here we review the dominant cellular mediators of these interactions and discuss emerging themes associated with our current understanding of the homeostatic immunological dialogue between the host and its microbiota.
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Affiliation(s)
- Yasmine Belkaid
- Mucosal Immunology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892, USA; NIAID Microbiome Program, NIH, Bethesda, MD 20892, USA.
| | - Oliver J Harrison
- Mucosal Immunology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892, USA
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573
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Zhao Q, Harbour SN, Kolde R, Latorre IJ, Tun HM, Schoeb TR, Turner H, Moon JJ, Khafipour E, Xavier RJ, Weaver CT, Elson CO. Selective Induction of Homeostatic Th17 Cells in the Murine Intestine by Cholera Toxin Interacting with the Microbiota. THE JOURNAL OF IMMUNOLOGY 2017; 199:312-322. [PMID: 28539431 DOI: 10.4049/jimmunol.1700171] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 05/04/2017] [Indexed: 02/07/2023]
Abstract
Th17 cells play a role as an inflammation mediator in a variety of autoimmune disorders, including inflammatory bowel disease, and thus are widely considered to be pathogenic. However, Th17 cells are present in the normal intestine and show a homeostatic phenotype; that is, they participate in the maintenance of intestinal homeostasis rather than inducing inflammation. We observed an enlarged Th17 population in the small intestine of C57BL/6.IgA-/- mice compared with wild-type mice, which was further amplified with cholera toxin (CT) immunization without causing intestinal inflammation. The increased Th17 induction and the correspondingly 10-fold higher CT B subunit-specific serum IgG response in IgA-/- mice after CT immunization was microbiota dependent and was associated with increased segmented filamentous bacteria in the small intestine of IgA-/- mice. Oral administration of vancomycin greatly dampened both CT immunogenicity and adjuvanticity, and the differential CT responses in IgA-/- and wild-type mice disappeared after intestinal microbiota equalization. Using gnotobiotic mouse models, we found that CT induction of homeostatic intestinal Th17 responses was supported not only by segmented filamentous bacteria, but also by other commensal bacteria. Furthermore, transcriptome analysis using IL-17AhCD2 reporter mice revealed a similar gene expression profile in CT-induced intestinal Th17 cells and endogenous intestinal Th17 cells at homeostasis, with upregulated expression of a panel of immune-regulatory genes, which was distinctly different from the gene expression profile of pathogenic Th17 cells. Taken together, we identified a nonpathogenic signature of intestinal homeostatic Th17 cells, which are actively regulated by the commensal microbiota and can be selectively stimulated by CT.
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Affiliation(s)
- Qing Zhao
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Stacey N Harbour
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Raivo Kolde
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114
| | | | - Hein M Tun
- Department of Animal Science, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - Trenton R Schoeb
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Henrietta Turner
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - James J Moon
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114
| | - Ehsan Khafipour
- Department of Animal Science, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada.,Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - Ramnik J Xavier
- Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114.,Broad Institute of MIT and Harvard, Cambridge, MA 02142.,Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114; and
| | - Casey T Weaver
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294.,Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
| | - Charles O Elson
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294; .,Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294
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574
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Gabriely G, da Cunha AP, Rezende RM, Kenyon B, Madi A, Vandeventer T, Skillin N, Rubino S, Garo L, Mazzola MA, Kolypetri P, Lanser AJ, Moreira T, Faria AMC, Lassmann H, Kuchroo V, Murugaiyan G, Weiner HL. Targeting latency-associated peptide promotes antitumor immunity. Sci Immunol 2017; 2:2/11/eaaj1738. [PMID: 28763794 DOI: 10.1126/sciimmunol.aaj1738] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 02/14/2017] [Accepted: 04/20/2017] [Indexed: 12/15/2022]
Abstract
Regulatory T cells (Tregs) promote cancer by suppressing antitumor immune responses. We found that anti-LAP antibody, which targets the latency-associated peptide (LAP)/transforming growth factor-β (TGF-β) complex on Tregs and other cells, enhances antitumor immune responses and reduces tumor growth in models of melanoma, colorectal carcinoma, and glioblastoma. Anti-LAP decreases LAP+ Tregs, tolerogenic dendritic cells, and TGF-β secretion and is associated with CD8+ T cell activation. Anti-LAP increases infiltration of tumors by cytotoxic CD8+ T cells and reduces CD103+ CD8 T cells in draining lymph nodes and the spleen. We identified a role for CD103+ CD8 T cells in cancer. Tumor-associated CD103+ CD8 T cells have a tolerogenic phenotype with increased expression of CTLA-4 and interleukin-10 and decreased expression of interferon-γ, tumor necrosis factor-α, and granzymes. Adoptive transfer of CD103+ CD8 T cells promotes tumor growth, whereas CD103 blockade limits tumorigenesis. Thus, anti-LAP targets multiple immunoregulatory pathways and represents a potential approach for cancer immunotherapy.
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Affiliation(s)
- Galina Gabriely
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Andre P da Cunha
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.,Novartis Institutes for BioMedical Research, Cambridge, MA 02139, USA
| | - Rafael M Rezende
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Brendan Kenyon
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Asaf Madi
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Tyler Vandeventer
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Nathaniel Skillin
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Stephen Rubino
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Lucien Garo
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Maria A Mazzola
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Panagiota Kolypetri
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Amanda J Lanser
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Thais Moreira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31.270-901, Brazil
| | - Ana Maria C Faria
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31.270-901, Brazil
| | - Hans Lassmann
- Center for Brain Research, Medical University of Vienna, Spitalgasse 4, A-1090 Wien, Austria
| | - Vijay Kuchroo
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Gopal Murugaiyan
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Howard L Weiner
- Ann Romney Center for Neurologic Diseases, Evergrande Center for Immunologic Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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575
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Abstract
Over the past 5 years, advances in high-throughput techniques and studies involving large cohorts of patients have led to considerable advances in the identification of novel genetic associations and immune pathways involved in ankylosing spondylitis (AS). These discoveries include genes encoding cytokine receptors, transcription factors, signalling molecules and transport proteins. Although progress has been made in understanding the functions and potential pathogenic roles of some of these molecules, much work remains to be done to comprehend their complex interactions and therapeutic potential in AS. In this Review, we outline the current knowledge of AS pathogenesis, including genetic risk associations, HLA-B27-mediated pathology, perturbations in antigen-presentation pathways and the contribution of the type 3 immune response.
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576
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Stephen-Victor E, Bosschem I, Haesebrouck F, Bayry J. The Yin and Yang of regulatory T cells in infectious diseases and avenues to target them. Cell Microbiol 2017; 19. [DOI: 10.1111/cmi.12746] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/03/2017] [Accepted: 04/04/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Emmanuel Stephen-Victor
- Institut National de la Santé et de la Recherche Médicale; Paris France
- Centre de Recherche des Cordeliers; Equipe-Immunopathologie et Immunointervention Thérapeutique; Paris France
- Sorbonne Universités; Université Pierre et Marie Curie; Paris France
| | - Iris Bosschem
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine; Ghent University; Merelbeke Belgium
| | - Freddy Haesebrouck
- Department of Pathology, Bacteriology and Avian Diseases, Faculty of Veterinary Medicine; Ghent University; Merelbeke Belgium
| | - Jagadeesh Bayry
- Institut National de la Santé et de la Recherche Médicale; Paris France
- Centre de Recherche des Cordeliers; Equipe-Immunopathologie et Immunointervention Thérapeutique; Paris France
- Sorbonne Universités; Université Pierre et Marie Curie; Paris France
- Université Paris Descartes; Sorbonne Paris Cité; Paris France
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577
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Flicr, a long noncoding RNA, modulates Foxp3 expression and autoimmunity. Proc Natl Acad Sci U S A 2017; 114:E3472-E3480. [PMID: 28396406 DOI: 10.1073/pnas.1700946114] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A combination of transcription factors, enhancers, and epigenetic marks determines the expression of the key transcription factor FoxP3 in regulatory T cells (Tregs). Adding an additional layer of complexity, the long noncoding RNA (lncRNA) Flicr (Foxp3 long intergenic noncoding RNA) is a negative regulator that tunes Foxp3 expression, resulting in a subset of Tregs with twofold- to fivefold-lower levels of FoxP3 protein. The impact of Flicr is particularly marked in conditions of IL-2 deficiency, and, conversely, IL-2 represses Flicr expression. Flicr neighbors Foxp3 in mouse and human genomes, is specifically expressed in mature Tregs, and acts only in cis It does not affect DNA methylation, but modifies chromatin accessibility in the conserved noncoding sequence 3 (CNS3)/Accessible region 5 (AR5) region of Foxp3 Like many lncRNAs, Flicr's molecular effects are subtle, but by curtailing Treg activity, Flicr markedly promotes autoimmune diabetes and, conversely, restrains antiviral responses. This mechanism of FoxP3 control may allow escape from dominant Treg control during infection or cancer, at the cost of heightened autoimmunity.
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578
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Bauché D, Marie JC. Transforming growth factor β: a master regulator of the gut microbiota and immune cell interactions. Clin Transl Immunology 2017; 6:e136. [PMID: 28523126 PMCID: PMC5418590 DOI: 10.1038/cti.2017.9] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 02/20/2017] [Accepted: 02/20/2017] [Indexed: 12/12/2022] Open
Abstract
The relationship between host organisms and their microbiota has co-evolved towards an inter-dependent network of mutualistic interactions. This interplay is particularly well studied in the gastrointestinal tract, where microbiota and host immune cells can modulate each other directly, as well as indirectly, through the production and release of chemical molecules and signals. In this review, we define the functional impact of transforming growth factor-beta (TGF-β) on this complex interplay, especially through its modulation of the activity of local regulatory T cells (Tregs), type 17 helper (Th17) cells, innate lymphoid cells (ILCs) and B cells.
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Affiliation(s)
- David Bauché
- Department of Immunology, Virology and Inflammation, Cancer Research Center of Lyon UMR INSERM1052, CNRS 5286, Centre Léon Bérard Hospital, Université de Lyon, Equipe labellisée LIGUE, Lyon, France.,TGF-β and Immuno-evasion Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Julien C Marie
- Department of Immunology, Virology and Inflammation, Cancer Research Center of Lyon UMR INSERM1052, CNRS 5286, Centre Léon Bérard Hospital, Université de Lyon, Equipe labellisée LIGUE, Lyon, France.,TGF-β and Immuno-evasion Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
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579
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Konkel JE, Zhang D, Zanvit P, Chia C, Zangarle-Murray T, Jin W, Wang S, Chen W. Transforming Growth Factor-β Signaling in Regulatory T Cells Controls T Helper-17 Cells and Tissue-Specific Immune Responses. Immunity 2017; 46:660-674. [DOI: 10.1016/j.immuni.2017.03.015] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 01/26/2017] [Accepted: 03/24/2017] [Indexed: 12/31/2022]
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580
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Kumagai J, Hirahara K, Nakayama T. Pathogenic Th cell subsets in chronic inflammatory diseases. ACTA ACUST UNITED AC 2017; 39:114-23. [PMID: 27212597 DOI: 10.2177/jsci.39.114] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
CD4(+) T cells play central roles to appropriate protection against pathogens. While, they can also be pathogenic driving inflammatory diseases. Besides the classical model of differentiation of T helper 1 (Th1) and Th2 cells, various CD4(+) T cell subsets, including Th17, Th9, T follicular helper (Tfh) and T regulatory (Treg) cells, have been recognized recently. In this review, we will focus on how these various CD4(+) T cell subsets contribute to the pathogenesis of immune-mediated inflammatory diseases. We will also discuss various unique subpopulations of T helper cells that have been identified. Recent advancement of the basic immunological research revealed that T helper cells are plastic than we imagined. So, we will focus on the molecular mechanisms underlying the generation of the plasticity and heterogeneity of T helper cell subsets. These latest finding regarding T helper cell subsets has pushed us to reconsider the etiology of immune-mediated inflammatory diseases beyond the model based on the conventional Th1/Th2 balance. Toward this end, we put forward another model, "the pathogenic Th population disease induction model", as a possible mechanism for the induction and/or persistence of immune-mediated inflammatory diseases.
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Affiliation(s)
- Jin Kumagai
- Department of Immunology, Graduate School of Medicine, Chiba University
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581
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Barthels C, Ogrinc A, Steyer V, Meier S, Simon F, Wimmer M, Blutke A, Straub T, Zimber-Strobl U, Lutgens E, Marconi P, Ohnmacht C, Garzetti D, Stecher B, Brocker T. CD40-signalling abrogates induction of RORγt + Treg cells by intestinal CD103 + DCs and causes fatal colitis. Nat Commun 2017; 8:14715. [PMID: 28276457 PMCID: PMC5347138 DOI: 10.1038/ncomms14715] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 01/25/2017] [Indexed: 12/23/2022] Open
Abstract
Immune homeostasis in intestinal tissues depends on the generation of regulatory T (Treg) cells. CD103+ dendritic cells (DCs) acquire microbiota-derived material from the gut lumen for transport to draining lymph nodes and generation of receptor-related orphan γt+ (RORγt+) Helios−-induced Treg (iTreg) cells. Here we show CD40-signalling as a microbe-independent signal that can induce migration of CD103+ DCs from the lamina propria (LP) to the mesenteric lymph nodes. Transgenic mice with constitutive CD11c-specific CD40-signalling have reduced numbers of CD103+ DCs in LP and a low frequency of RORγt+Helios− iTreg cells, exacerbated inflammatory Th1/Th17 responses, high titres of microbiota-specific immunoglobulins, dysbiosis and fatal colitis, but no pathology is detected in other tissues. Our data demonstrate a CD40-dependent mechanism capable of abrogating iTreg cell induction by DCs, and suggest that the CD40L/CD40-signalling axis might be able to intervene in the generation of new iTreg cells in order to counter-regulate immune suppression to enhance immunity. CD103+ dendritic cells induce iTreg cells to maintain immune balance in the gut, but how CD40-signalling regulates this process is unclear. Here the authors show that mice with constitutive CD11c-specific CD40-signalling have altered CD103+ dendritic cell migration, reduced iTreg cell induction, and fatal colitis.
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Affiliation(s)
- Christian Barthels
- Institute for Immunology, LMU Munich, Großhaderner Strasse 9, Planegg-Martinsried 82152, Germany
| | - Ana Ogrinc
- Institute for Immunology, LMU Munich, Großhaderner Strasse 9, Planegg-Martinsried 82152, Germany
| | - Verena Steyer
- Institute for Immunology, LMU Munich, Großhaderner Strasse 9, Planegg-Martinsried 82152, Germany
| | - Stefanie Meier
- Institute for Immunology, LMU Munich, Großhaderner Strasse 9, Planegg-Martinsried 82152, Germany
| | - Ferdinand Simon
- Institute for Immunology, LMU Munich, Großhaderner Strasse 9, Planegg-Martinsried 82152, Germany
| | - Maria Wimmer
- Center of Allergy Environment (ZAUM), Helmholtz Center and TU Munich, Neuherberg 85764, Germany
| | - Andreas Blutke
- Section of Animal Pathology, Department of Veterinary Clinical Sciences, LMU Munich, Munich 80539, Germany
| | - Tobias Straub
- Bioinformatics core unit, BMC, LMU Munich, Großhaderner Strasse 9, Planegg-Munich 82152, Germany
| | | | - Esther Lutgens
- Institut für Prophylaxe und Epidemiologie der Kreislaufkrankheiten, LMU Munich, Munich 80336, Germany.,Department of Medical Biochemistry, AMC, Amsterdam 1105AZ, The Netherlands
| | - Peggy Marconi
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara 44121, Italy
| | - Caspar Ohnmacht
- Center of Allergy Environment (ZAUM), Helmholtz Center and TU Munich, Neuherberg 85764, Germany
| | - Debora Garzetti
- Max von Pettenkofer Institute of Hygiene and Medical Microbiology, German Center for Infection Research (DZIF), Partner Site Munich, LMU Munich, Munich 80336, Germany
| | - Bärbel Stecher
- Max von Pettenkofer Institute of Hygiene and Medical Microbiology, German Center for Infection Research (DZIF), Partner Site Munich, LMU Munich, Munich 80336, Germany
| | - Thomas Brocker
- Institute for Immunology, LMU Munich, Großhaderner Strasse 9, Planegg-Martinsried 82152, Germany
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582
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Ferreira RC, Rainbow DB, Rubio García A, Pekalski ML, Porter L, Oliveira JJ, Waldron-Lynch F, Wicker LS, Todd JA. Human IL-6R hiTIGIT - CD4 +CD127 lowCD25 + T cells display potent in vitro suppressive capacity and a distinct Th17 profile. Clin Immunol 2017; 179:25-39. [PMID: 28284938 PMCID: PMC5471606 DOI: 10.1016/j.clim.2017.03.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 03/03/2017] [Accepted: 03/07/2017] [Indexed: 12/12/2022]
Abstract
To date many clinical studies aim to increase the number and/or fitness of CD4+ CD127lowCD25+ regulatory T cells (Tregs) in vivo to harness their regulatory potential in the context of treating autoimmune disease. Here, we sought to define the phenotype and function of Tregs expressing the highest levels of IL-6 receptor (IL-6R). We have identified a population of CD4+ CD127lowCD25+ TIGIT− T cells distinguished by their elevated IL-6R expression that lacked expression of HELIOS, showed higher CTLA-4 expression, and displayed increased suppressive capacity compared to IL-6RhiTIGIT+ Tregs. IL-6RhiTIGIT− CD127lowCD25+ T cells contained a majority of cells demethylated at FOXP3 and displayed a Th17 transcriptional signature, including RORC (RORγt) and the capacity of producing both pro- and anti-inflammatory cytokines, such as IL-17, IL-22 and IL-10. We propose that in vivo, in the presence of IL-6-associated inflammation, the suppressive function of CD4+ CD127lowCD25+ FOXP3+ IL-6RhiTIGIT− T cells is temporarily disarmed allowing further activation of the effector functions and potential pathogenic tissue damage. IL-6R is highly expressed in certain Treg subsets. IL-6RhiTIGIT− CD127lowCD25+ T cells contain a subset of antigen-experienced Tregs with potent suppression capacity. IL-6RhiTIGIT− Tregs display a Th17 transcriptional profile ex vivo, and the capacity to migrate to the gut. IL-2 treatment in humans elicits the trafficking and expansion of Tregs in circulation.
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Affiliation(s)
- Ricardo C Ferreira
- JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Wellcome Trust Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK; JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Department of Medical Genetics, NIHR Cambridge Biomedical Research Centre, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK.
| | - Daniel B Rainbow
- JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Wellcome Trust Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK; JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Department of Medical Genetics, NIHR Cambridge Biomedical Research Centre, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - Arcadio Rubio García
- JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Wellcome Trust Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK; JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Department of Medical Genetics, NIHR Cambridge Biomedical Research Centre, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - Marcin L Pekalski
- JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Wellcome Trust Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK; JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Department of Medical Genetics, NIHR Cambridge Biomedical Research Centre, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - Linsey Porter
- JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Department of Medical Genetics, NIHR Cambridge Biomedical Research Centre, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - João J Oliveira
- JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Department of Medical Genetics, NIHR Cambridge Biomedical Research Centre, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - Frank Waldron-Lynch
- Experimental Medicine and Immunotherapeutics, Department of Medicine, NIHR Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK; NIHR Cambridge Clinical Trial Unit, Cambridge NHS University Hospitals Trust, Cambridge Biomedical Research Centre, University of Cambridge, Cambridge, UK
| | - Linda S Wicker
- JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Wellcome Trust Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK; JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Department of Medical Genetics, NIHR Cambridge Biomedical Research Centre, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK
| | - John A Todd
- JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Wellcome Trust Centre for Human Genetics, Nuffield Department of Medicine, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, UK; JDRF/Wellcome Trust Diabetes and Inflammation Laboratory, Department of Medical Genetics, NIHR Cambridge Biomedical Research Centre, Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK.
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583
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Levy M, Kolodziejczyk AA, Thaiss CA, Elinav E. Dysbiosis and the immune system. Nat Rev Immunol 2017; 17:219-232. [DOI: 10.1038/nri.2017.7] [Citation(s) in RCA: 744] [Impact Index Per Article: 106.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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584
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An Intestinal Organ Culture System Uncovers a Role for the Nervous System in Microbe-Immune Crosstalk. Cell 2017; 168:1135-1148.e12. [PMID: 28262351 DOI: 10.1016/j.cell.2017.02.009] [Citation(s) in RCA: 169] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 11/23/2016] [Accepted: 02/03/2017] [Indexed: 02/07/2023]
Abstract
Investigation of host-environment interactions in the gut would benefit from a culture system that maintained tissue architecture yet allowed tight experimental control. We devised a microfabricated organ culture system that viably preserves the normal multicellular composition of the mouse intestine, with luminal flow to control perturbations (e.g., microbes, drugs). It enables studying short-term responses of diverse gut components (immune, neuronal, etc.). We focused on the early response to bacteria that induce either Th17 or RORg+ T-regulatory (Treg) cells in vivo. Transcriptional responses partially reproduced in vivo signatures, but these microbes elicited diametrically opposite changes in expression of a neuronal-specific gene set, notably nociceptive neuropeptides. We demonstrated activation of sensory neurons by microbes, correlating with RORg+ Treg induction. Colonic RORg+ Treg frequencies increased in mice lacking TAC1 neuropeptide precursor and decreased in capsaicin-diet fed mice. Thus, differential engagement of the enteric nervous system may partake in bifurcating pro- or anti-inflammatory responses to microbes.
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585
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Hong SW, Kim KS, Surh CD. Beyond Hygiene: Commensal Microbiota and Allergic Diseases. Immune Netw 2017; 17:48-59. [PMID: 28261020 PMCID: PMC5334122 DOI: 10.4110/in.2017.17.1.48] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 01/23/2017] [Accepted: 01/31/2017] [Indexed: 12/12/2022] Open
Abstract
Complex communities of microorganisms, termed commensal microbiota, inhabit mucosal surfaces and profoundly influence host physiology as well as occurrence of allergic diseases. Perturbing factors such as the mode of delivery, dietary fibers and antibiotics can influence allergic diseases by altering commensal microbiota in affected tissues as well as in intestine. Here, we review current findings on the relationship between commensal microbiota and allergic diseases, and discuss the underlying mechanisms that contribute to the regulation of allergic responses by commensal microbiota.
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Affiliation(s)
- Sung-Wook Hong
- Academy of Immunology and Microbiology, Institute for Basic Science, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Kwang Soon Kim
- Academy of Immunology and Microbiology, Institute for Basic Science, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Charles D Surh
- Academy of Immunology and Microbiology, Institute for Basic Science, Pohang University of Science and Technology, Pohang 37673, Korea.; Department of Integrative Biosciences and Biotechnology. Pohang University of Science and Technology, Pohang 37673, Korea
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586
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Geva-Zatorsky N, Sefik E, Kua L, Pasman L, Tan TG, Ortiz-Lopez A, Yanortsang TB, Yang L, Jupp R, Mathis D, Benoist C, Kasper DL. Mining the Human Gut Microbiota for Immunomodulatory Organisms. Cell 2017; 168:928-943.e11. [PMID: 28215708 DOI: 10.1016/j.cell.2017.01.022] [Citation(s) in RCA: 491] [Impact Index Per Article: 70.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 12/01/2016] [Accepted: 01/19/2017] [Indexed: 12/16/2022]
Abstract
Within the human gut reside diverse microbes coexisting with the host in a mutually advantageous relationship. Evidence has revealed the pivotal role of the gut microbiota in shaping the immune system. To date, only a few of these microbes have been shown to modulate specific immune parameters. Herein, we broadly identify the immunomodulatory effects of phylogenetically diverse human gut microbes. We monocolonized mice with each of 53 individual bacterial species and systematically analyzed host immunologic adaptation to colonization. Most microbes exerted several specialized, complementary, and redundant transcriptional and immunomodulatory effects. Surprisingly, these were independent of microbial phylogeny. Microbial diversity in the gut ensures robustness of the microbiota's ability to generate a consistent immunomodulatory impact, serving as a highly important epigenetic system. This study provides a foundation for investigation of gut microbiota-host mutualism, highlighting key players that could identify important therapeutics.
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Affiliation(s)
- Naama Geva-Zatorsky
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Esen Sefik
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Lindsay Kua
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Lesley Pasman
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Tze Guan Tan
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Adriana Ortiz-Lopez
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Tsering Bakto Yanortsang
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Liang Yang
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Ray Jupp
- UCB Pharma, Slough, Berkshire SL1 3WE, UK
| | - Diane Mathis
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Christophe Benoist
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Dennis L Kasper
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA.
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587
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Viladomiu M, Kivolowitz C, Abdulhamid A, Dogan B, Victorio D, Castellanos JG, Woo V, Teng F, Tran NL, Sczesnak A, Chai C, Kim M, Diehl GE, Ajami NJ, Petrosino JF, Zhou XK, Schwartzman S, Mandl LA, Abramowitz M, Jacob V, Bosworth B, Steinlauf A, Scherl EJ, Wu HJJ, Simpson KW, Longman RS. IgA-coated E. coli enriched in Crohn's disease spondyloarthritis promote T H17-dependent inflammation. Sci Transl Med 2017; 9:eaaf9655. [PMID: 28179509 PMCID: PMC6159892 DOI: 10.1126/scitranslmed.aaf9655] [Citation(s) in RCA: 217] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 08/12/2016] [Accepted: 12/27/2016] [Indexed: 12/21/2022]
Abstract
Peripheral spondyloarthritis (SpA) is a common extraintestinal manifestation in patients with active inflammatory bowel disease (IBD) characterized by inflammatory enthesitis, dactylitis, or synovitis of nonaxial joints. However, a mechanistic understanding of the link between intestinal inflammation and SpA has yet to emerge. We evaluated and functionally characterized the fecal microbiome of IBD patients with or without peripheral SpA. Coupling the sorting of immunoglobulin A (IgA)-coated microbiota with 16S ribosomal RNA-based analysis (IgA-seq) revealed a selective enrichment in IgA-coated Escherichia coli in patients with Crohn's disease-associated SpA (CD-SpA) compared to CD alone. E. coli isolates from CD-SpA-derived IgA-coated bacteria were similar in genotype and phenotype to an adherent-invasive E. coli (AIEC) pathotype. In comparison to non-AIEC E. coli, colonization of germ-free mice with CD-SpA E. coli isolates induced T helper 17 cell (TH17) mucosal immunity, which required the virulence-associated metabolic enzyme propanediol dehydratase (pduC). Modeling the increase in mucosal and systemic TH17 immunity we observed in CD-SpA patients, colonization of interleukin-10-deficient or K/BxN mice with CD-SpA-derived E. coli lead to more severe colitis or inflammatory arthritis, respectively. Collectively, these data reveal the power of IgA-seq to identify immunoreactive resident pathosymbionts that link mucosal and systemic TH17-dependent inflammation and offer microbial and immunophenotype stratification of CD-SpA that may guide medical and biologic therapy.
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Affiliation(s)
- Monica Viladomiu
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (IBD), Weill Cornell Medicine, New York, NY 10021, USA
| | - Charles Kivolowitz
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (IBD), Weill Cornell Medicine, New York, NY 10021, USA
| | - Ahmed Abdulhamid
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (IBD), Weill Cornell Medicine, New York, NY 10021, USA
| | - Belgin Dogan
- College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - Daniel Victorio
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (IBD), Weill Cornell Medicine, New York, NY 10021, USA
| | - Jim G Castellanos
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (IBD), Weill Cornell Medicine, New York, NY 10021, USA
| | - Viola Woo
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (IBD), Weill Cornell Medicine, New York, NY 10021, USA
| | - Fei Teng
- Department of Immunobiology, University of Arizona, Tucson, AZ 85719, USA
| | - Nhan L Tran
- Department of Immunobiology, University of Arizona, Tucson, AZ 85719, USA
| | - Andrew Sczesnak
- Department of Bioengineering, University of California, Berkeley, Berkeley, CA 94709, USA
| | - Christina Chai
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (IBD), Weill Cornell Medicine, New York, NY 10021, USA
| | - Myunghoo Kim
- Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Gretchen E Diehl
- Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Nadim J Ajami
- Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Joseph F Petrosino
- Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Xi K Zhou
- Division of Biostatistics and Epidemiology, Weill Cornell Medical College, New York, NY 10065, USA
| | | | - Lisa A Mandl
- Hospital for Special Surgery, New York, NY 10021, USA
| | - Meira Abramowitz
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, NY 10021, USA
| | - Vinita Jacob
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, NY 10021, USA
| | - Brian Bosworth
- Department of Medicine, New York University School of Medicine, New York, NY 10016, USA
| | - Adam Steinlauf
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, NY 10021, USA
| | - Ellen J Scherl
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, NY 10021, USA
| | - Hsin-Jung Joyce Wu
- Department of Immunobiology, University of Arizona, Tucson, AZ 85719, USA
| | - Kenneth W Simpson
- College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA
| | - Randy S Longman
- Jill Roberts Institute for Research in Inflammatory Bowel Disease (IBD), Weill Cornell Medicine, New York, NY 10021, USA.
- Jill Roberts Center for IBD, Weill Cornell Medicine, New York, NY 10021, USA
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588
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An expanding stage for commensal microbes in host immune regulation. Cell Mol Immunol 2017; 14:339-348. [PMID: 28065939 DOI: 10.1038/cmi.2016.64] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 10/12/2016] [Accepted: 10/12/2016] [Indexed: 02/07/2023] Open
Abstract
Gastrointestinal commensal microbiota is a concentrated mix of microbial life forms, including bacteria, fungi, archaea and viruses. These life forms are targets of host antimicrobial defense in order to establish a homeostatic symbiosis inside the host. However, they are also instrumental in shaping the functions of our immune system via a diverse set of communication mechanisms. In the gut, T helper 17, regulatory T and B cells are continuously tuned by specific microbial strains and metabolic processes. These cells in return help to establish a mutually beneficial exchange with the gut microbial contents. Imbalances in this symbiosis lead to dysregulations in the host's ability to control infections and the development of autoimmune diseases. In addition, the commensal microbiota has a significant and obligatory role in shaping both gut intrinsic and distal lymphoid organs, casting a large impact on the overall immune landscape in the host. This review discusses the major components of the microbial community in the gut and how its members collectively and individually exert regulatory roles in the host immune system and lymphoid structure development, as well as the functions of several major immune cell types.
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589
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590
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Eberl G. RORγt, a multitask nuclear receptor at mucosal surfaces. Mucosal Immunol 2017; 10:27-34. [PMID: 27706126 DOI: 10.1038/mi.2016.86] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 08/30/2016] [Indexed: 02/07/2023]
Abstract
RORγt is a nuclear hormone receptor that has followed an exponential success carrier. Its modest origins as an orphan receptor cloned from human pancreas blossomed within 15 years into a critical regulator of anti-microbial immunity and a major target in the fight against inflammatory pathologies. Here, I review its role as a transcription factor required for the generation of type 3 lymphoid cells, which induce the development of lymphoid tissues, provide resistance of epithelial stem cells to injury, maintain homeostasis with the symbiotic microbiota, orchestrate defense against extracellular microbes, and regulate allergic responses. RORγt is also an intriguing molecule that is regulated by the circadian rhythm and includes cholesterol metabolites as ligands. RORγt therefore links anti-microbial immunity with circadian rhythms and steroids, the logic of which remains to be understood.
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Affiliation(s)
- G Eberl
- Institut Pasteur, Microenvironment & Immunity Unit, Department of Immunology, Paris, France.,INSERM U1224, Paris, France
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591
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Nowarski R, Jackson R, Flavell RA. The Stromal Intervention: Regulation of Immunity and Inflammation at the Epithelial-Mesenchymal Barrier. Cell 2017; 168:362-375. [DOI: 10.1016/j.cell.2016.11.040] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 10/25/2016] [Accepted: 11/22/2016] [Indexed: 12/24/2022]
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592
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Notch regulates Th17 differentiation and controls trafficking of IL-17 and metabolic regulators within Th17 cells in a context-dependent manner. Sci Rep 2016; 6:39117. [PMID: 27974744 PMCID: PMC5156918 DOI: 10.1038/srep39117] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 11/11/2016] [Indexed: 01/07/2023] Open
Abstract
Th17 cells play critical roles in host defense and autoimmunity. Emerging data support a role for Notch signaling in Th17 cell differentiation but whether it is a positive or negative regulator remains unclear. We report here that T cell-specific deletion of Notch receptors enhances Th17 cell differentiation in the gut, with a corresponding increase in IL-17 secretion. An increase in Th17 cell frequency was similarly observed following immunization of T cell specific Notch mutant mice with OVA/CFA. However, in this setting, Th17 cytokine secretion was impaired, and increased intracellular retention of IL-17 was observed. Intracellular IL-17 co-localized with the CD71 iron transporter in the draining lymph node of both control and Notch-deficient Th17 cells. Immunization induced CD71 surface expression in control, but not in Notch-deficient Th17 cells, revealing defective CD71 intracellular transport in absence of Notch signaling. Moreover, Notch receptor deficient Th17 cells had impaired mTORC2 activity. These data reveal a context-dependent impact of Notch on vesicular transport during high metabolic demand suggesting a role for Notch signaling in the bridging of T cell metabolic demands and effector functions. Collectively, our findings indicate a prominent regulatory role for Notch signaling in the fine-tuning of Th17 cell differentiation and effector function.
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593
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Tan TG, Sefik E, Geva-Zatorsky N, Kua L, Naskar D, Teng F, Pasman L, Ortiz-Lopez A, Jupp R, Wu HJJ, Kasper DL, Benoist C, Mathis D. Identifying species of symbiont bacteria from the human gut that, alone, can induce intestinal Th17 cells in mice. Proc Natl Acad Sci U S A 2016; 113:E8141-E8150. [PMID: 27911839 PMCID: PMC5167147 DOI: 10.1073/pnas.1617460113] [Citation(s) in RCA: 300] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Th17 cells accrue in the intestine in response to particular microbes. In rodents, segmented filamentous bacteria (SFB) induce intestinal Th17 cells, but analogously functioning microbes in humans remain undefined. Here, we identified human symbiont bacterial species, in particular Bifidobacterium adolescentis, that could, alone, induce Th17 cells in the murine intestine. Similar to SFB, B. adolescentis was closely associated with the gut epithelium and engendered cognate Th17 cells without attendant inflammation. However, B. adolescentis elicited a transcriptional program clearly distinct from that of SFB, suggesting an alternative mechanism of promoting Th17 cell accumulation. Inoculation of mice with B. adolescentis exacerbated autoimmune arthritis in the K/BxN mouse model. Several off-the-shelf probiotic preparations that include Bifidobacterium strains also drove intestinal Th17 cell accumulation.
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Affiliation(s)
- Tze Guan Tan
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115
| | - Esen Sefik
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115
| | - Naama Geva-Zatorsky
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115
| | - Lindsay Kua
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115
| | - Debdut Naskar
- Department of Immunobiology, University of Arizona, Tucson, AZ 85719
| | - Fei Teng
- Department of Immunobiology, University of Arizona, Tucson, AZ 85719
| | - Lesley Pasman
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115
| | - Adriana Ortiz-Lopez
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115
| | - Ray Jupp
- UCB Pharma, Slough, Berkshire SL1 3WE, United Kingdom
| | - Hsin-Jung Joyce Wu
- Department of Immunobiology, University of Arizona, Tucson, AZ 85719
- Arizona Arthritis Center, College of Medicine, University of Arizona, Tucson, AZ 85719
| | - Dennis L Kasper
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115
| | - Christophe Benoist
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115;
| | - Diane Mathis
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115;
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594
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Peled JU, Hanash AM, Jenq RR. Role of the intestinal mucosa in acute gastrointestinal GVHD. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2016; 2016:119-127. [PMID: 27913470 PMCID: PMC5575743 DOI: 10.1182/asheducation-2016.1.119] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Intestinal graft-versus-host disease (GVHD) remains a significant obstacle to the success of allogeneic hematopoietic cell transplantation. The intestinal mucosa comprises the inner lining of the intestinal tract and maintains close proximity with commensal microbes that reside within the intestinal lumen. Recent advances have significantly improved our understanding of the interactions between the intestinal mucosa and the enteric microbiota. Changes in host mucosal tissue and commensals posttransplant have been actively investigated, and provocative insights into mucosal immunity and the enteric microbiota are now being translated into clinical trials of novel approaches for preventing and treating acute GVHD. In this review, we summarize recent findings related to aspects of the intestinal mucosa during acute GVHD.
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Affiliation(s)
- Jonathan U Peled
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY; and
- Weill Cornell Medical College, New York, NY
| | - Alan M Hanash
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY; and
| | - Robert R Jenq
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY; and
- Weill Cornell Medical College, New York, NY
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595
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Nair VS, Song MH, Ko M, Oh KI. DNA Demethylation of the Foxp3 Enhancer Is Maintained through Modulation of Ten-Eleven-Translocation and DNA Methyltransferases. Mol Cells 2016; 39:888-897. [PMID: 27989104 PMCID: PMC5223106 DOI: 10.14348/molcells.2016.0276] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 11/24/2016] [Indexed: 01/25/2023] Open
Abstract
Stable expression of Foxp3 is ensured by demethylation of CpG motifs in the Foxp3 intronic element, the conserved non-coding sequence 2 (CNS2), which persists throughout the lifespan of regulatory T cells (Tregs). However, little is known about the mechanisms on how CNS2 demethylation is sustained. In this study, we found that Ten-Eleven-Translocation (Tet) DNA dioxygenase protects the CpG motifs of CNS2 from re-methylation by DNA methyltransferases (Dnmts) and prevents Tregs from losing Foxp3 expression under inflammatory conditions. Upon stimulation of Tregs by interleukin-6 (IL6), Dnmt1 was recruited to CNS2 and induced methylation, which was inhibited by Tet2 recruited by IL2. Tet2 prevented CNS2 re-methylation by not only the occupancy of the CNS2 locus but also by its enzymatic activity. These results show that the CNS2 methylation status is dynamically regulated by a balance between Tets and Dnmts which influences the expression of Foxp3 in Tregs.
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Affiliation(s)
- Varun Sasidharan Nair
- Department of Pathology, Hallym University College of Medicine, Chuncheon 24252,
Korea
| | - Mi Hye Song
- Department of Pathology, Hallym University College of Medicine, Chuncheon 24252,
Korea
| | - Myunggon Ko
- School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan 44949,
Korea
| | - Kwon Ik Oh
- Department of Pathology, Hallym University College of Medicine, Chuncheon 24252,
Korea
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596
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Jacobs JP, Lin L, Goudarzi M, Ruegger P, McGovern DPB, Fornace AJ, Borneman J, Xia L, Braun J. Microbial, metabolomic, and immunologic dynamics in a relapsing genetic mouse model of colitis induced by T-synthase deficiency. Gut Microbes 2016; 8:1-16. [PMID: 27874308 PMCID: PMC5341916 DOI: 10.1080/19490976.2016.1257469] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Intestinal dysbiosis is thought to confer susceptibility to inflammatory bowel disease (IBD), but it is unknown whether dynamic changes in the microbiome contribute to fluctuations in disease activity. We explored this question using mice with intestine-specific deletion of C1galt1 (also known as T-synthase) (Tsyn mice). These mice develop spontaneous microbiota-dependent colitis with a remitting/relapsing course due to loss of mucin core-1 derived O-glycans. 16S rRNA sequencing and untargeted metabolomics demonstrated age-specific perturbations in the intestinal microbiome and metabolome of Tsyn mice compare with littermate controls at weeks 3 (disease onset), 5 (during remission), and 9 (after relapse). Colitis remission corresponded to increased levels of FoxP3+RORγt+CD4+ T cells in the colonic lamina propria that were positively correlated with operational taxonomic units (OTUs) in the S24-7 family and negatively correlated with OTUs in the Clostridiales order. Relapse was characterized by marked expansion of FoxP3-RORγt+CD4+ T cells expressing IFNγ and IL17A, which were associated with Clostridiales OTUs distinct from those negatively correlated with FoxP3+RORγt+CD4+ T cells. Our findings suggest that colitis remission and relapse in the Tsyn model may reflect alterations in the microbiome due to reduced core-1 O-glycosylation that shift the balance of regulatory and pro-inflammatory T cell subsets. We investigated whether genetic variation in C1galt1 correlated with the microbiome in a cohort of 78 Crohn's disease patients and 101 healthy controls. Polymorphisms near C1galt1 (rs10486157) and its molecular chaperone, Cosmc (rs4825729), were associated with altered composition of the colonic mucosal microbiota, supporting the relevance of core-1 O-glycosylation to host regulation of the microbiome.
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Affiliation(s)
- Jonathan P. Jacobs
- Division of Digestive Diseases, Department of Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Lin Lin
- Department of Pathology, University of California Los Angeles, Los Angeles, California, USA
| | - Maryam Goudarzi
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, D.C., USA
| | - Paul Ruegger
- Plant Pathology and Microbiology, University of California Riverside, Riverside, California, USA
| | - Dermot P. B. McGovern
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Albert J. Fornace
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, D.C., USA
| | - James Borneman
- Plant Pathology and Microbiology, University of California Riverside, Riverside, California, USA
| | - Lijun Xia
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Jonathan Braun
- Department of Pathology, University of California Los Angeles, Los Angeles, California, USA
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597
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Singular role for T-BET+CXCR3+ regulatory T cells in protection from autoimmune diabetes. Proc Natl Acad Sci U S A 2016; 113:14103-14108. [PMID: 27872297 PMCID: PMC5150376 DOI: 10.1073/pnas.1616710113] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Foxp3+ regulatory T (Treg) cells are crucial for restraining inflammation in a variety of autoimmune diseases, including type 1 diabetes (T1D). However, the transcriptional and functional phenotypes of Treg cells within the pancreatic lesion remain poorly understood. Here we characterized pancreas-infiltrating Treg cells in the NOD mouse model of T1D and uncovered a substantial enrichment of the Treg subpopulation expressing the chemokine receptor CXCR3. Accumulation of CXCR3+ Treg cells within pancreatic islets was dependent on the transcription factor T-BET, and genetic ablation of T-BET increased the onset and penetrance of disease, abrogating the sex bias normally seen in the NOD model. Both male and female mice lacking T-BET+ Treg cells showed a more aggressive insulitic infiltrate, reflected most prominently by elevated production of type 1 cytokines. Our results suggest the possibility of fine therapeutic targeting of Treg cells, in a tissue- and cell-subset-specific fashion, as a more focused immunotherapy for T1D.
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598
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Fujikado N, Mann AO, Bansal K, Romito KR, Ferre EMN, Rosenzweig SD, Lionakis MS, Benoist C, Mathis D. Aire Inhibits the Generation of a Perinatal Population of Interleukin-17A-Producing γδ T Cells to Promote Immunologic Tolerance. Immunity 2016; 45:999-1012. [PMID: 27851927 PMCID: PMC5133707 DOI: 10.1016/j.immuni.2016.10.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 08/02/2016] [Accepted: 08/22/2016] [Indexed: 01/13/2023]
Abstract
Aire's primary mechanism of action is to regulate transcription of a battery of genes in medullary thymic epithelial cells (mTECs) and, consequently, negative selection of effector T cells and positive selection of regulatory T cells. We found that Aire-deficient mice had expanded thymic and peripheral populations of perinatally generated IL-17A+Vγ6+Vδ1+ T cells, considered to be "early responders" to tissue stress and drivers of inflammatory reactions. Aire-dependent control of Il7 expression in mTECs regulated the size of thymic IL-17A+Vγ6+Vδ1+ compartments. In mice lacking Aire and γδ T cells, certain tissues typically targeted in the "Aire-less" disease, notably the retina, were only minimally infiltrated. IL-17A+Vγ6+Vδ1+ cells were present in the retina of wild-type mice and expanded very early in Aire-deficient mice. A putatively parallel population of IL-17A+Vγ9+Vδ2+ T cells was increased in humans lacking Aire. Thus, Aire exerts multi-faceted autoimmune control that extends to a population of innate-like T cells.
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Affiliation(s)
- Noriyuki Fujikado
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Alexander O Mann
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Kushagra Bansal
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Kimberly R Romito
- Department of Laboratory Medicine, NIH Clinical Center, NIH, Bethesda, MD 20892, USA
| | - Elise M N Ferre
- Fungal Pathogenesis Unit, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892, USA
| | - Sergio D Rosenzweig
- Department of Laboratory Medicine, NIH Clinical Center, NIH, Bethesda, MD 20892, USA
| | - Michail S Lionakis
- Fungal Pathogenesis Unit, Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, NIH, Bethesda, MD 20892, USA
| | - Christophe Benoist
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA.
| | - Diane Mathis
- Division of Immunology, Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA.
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599
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CD4 + T Cell Fate in Glomerulonephritis: A Tale of Th1, Th17, and Novel Treg Subtypes. Mediators Inflamm 2016; 2016:5393894. [PMID: 27974866 PMCID: PMC5126430 DOI: 10.1155/2016/5393894] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 06/17/2016] [Accepted: 10/12/2016] [Indexed: 12/12/2022] Open
Abstract
Multiple studies have identified CD4+ T cells as central players of glomerulonephritis (GN). Cells of the Th1 and Th17 responses cause renal tissue damage, while Tregs mediate protection. Recently, a high degree of plasticity among these T cell lineages was proposed. During inflammation, Th17 cells were shown to have the potential of transdifferentiation into Th1, Th2, or alternatively anti-inflammatory Tr1 cells. Currently available data from studies in GN, however, do not indicate relevant Th17 to Th1 or Th2 conversion, leaving the Th17 cell fate enigmatic. Tregs, on the other hand, were speculated to transdifferentiate into Th17 cells. Again, data from GN do not support this concept. Rather, it seems that previously unrecognized subspecialized effector Treg lineages exist. These include Th1 specific Treg1 as well as Th17 directed Treg17 cells. Furthermore, a bifunctional Treg subpopulation was recently identified in GN, which secrets IL-17 and coexpresses Foxp3 together with the Th17 characteristic transcription factor RORγt. Similarities between these different and highly specialized effector Treg subpopulations with the corresponding T helper effector cell lineages might have resulted in previous misinterpretation as Treg transdifferentiation. In summary, Th17 cells have a relatively stable phenotype during GN, while, in the case of Tregs, currently available data suggest lineage heterogeneity rather than plasticity.
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600
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Berker M, Frank LJ, Geßner AL, Grassl N, Holtermann AV, Höppner S, Kraef C, Leclaire MD, Maier P, Messerer DAC, Möhrmann L, Nieke JP, Schoch D, Soll D, Woopen CMP. Allergies - A T cells perspective in the era beyond the T H1/T H2 paradigm. Clin Immunol 2016; 174:73-83. [PMID: 27847316 DOI: 10.1016/j.clim.2016.11.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Revised: 11/02/2016] [Accepted: 11/09/2016] [Indexed: 12/11/2022]
Abstract
Allergic diseases have emerged as a major health care burden, especially in the western hemisphere. They are defined by overshooting reactions of an aberrant immune system to harmless exogenous stimuli. The TH1/TH2 paradigm assumes that a dominance of TH2 cell activation and an inadequate TH1 cell response are responsible for the development of allergies. However, the characterization of additional T helper cell subpopulations such as TH9, TH17, TH22, THGM-CSF and their interplay with regulatory T cells suggest further layers of complexity. This review summarizes state-of-the-art knowledge on T cell diversity and their induction, while revisiting the TH1/TH2 paradigm. With respect to these numerous contributors, it offers a new perspective on the pathogenesis of asthma, allergic rhinitis (AR) and atopic dermatitis (AD) incorporating recent discoveries in the field of T cell plasticity.
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Affiliation(s)
- Moritz Berker
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany
| | - Larissa Johanna Frank
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany
| | - Anja Lidwina Geßner
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany
| | - Niklas Grassl
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany
| | - Anne Verena Holtermann
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany
| | - Stefanie Höppner
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany
| | - Christian Kraef
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany.
| | - Martin Dominik Leclaire
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany
| | - Pia Maier
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany
| | | | - Lino Möhrmann
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany
| | - Jan Philipp Nieke
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany
| | - Diana Schoch
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany
| | - Dominik Soll
- German Academic Scholarship Foundation - Studienstiftung des deutschen Volkes, Bonn, Germany
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