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Erice PA, Huang X, Seasock MJ, Robertson MJ, Tung HY, Perez-Negron MA, Lotlikar SL, Corry DB, Kheradmand F, Rodriguez A. Downregulation of Mirlet7 miRNA family promotes Tc17 differentiation and emphysema via de-repression of RORγt. eLife 2024; 13:RP92879. [PMID: 38722677 PMCID: PMC11081633 DOI: 10.7554/elife.92879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024] Open
Abstract
Environmental air irritants including nanosized carbon black (nCB) can drive systemic inflammation, promoting chronic obstructive pulmonary disease (COPD) and emphysema development. The let-7 microRNA (Mirlet7 miRNA) family is associated with IL-17-driven T cell inflammation, a canonical signature of lung inflammation. Recent evidence suggests the Mirlet7 family is downregulated in patients with COPD, however, whether this repression conveys a functional consequence on emphysema pathology has not been elucidated. Here, we show that overall expression of the Mirlet7 clusters, Mirlet7b/Mirlet7c2 and Mirlet7a1/Mirlet7f1/Mirlet7d, are reduced in the lungs and T cells of smokers with emphysema as well as in mice with cigarette smoke (CS)- or nCB-elicited emphysema. We demonstrate that loss of the Mirlet7b/Mirlet7c2 cluster in T cells predisposed mice to exaggerated CS- or nCB-elicited emphysema. Furthermore, ablation of the Mirlet7b/Mirlet7c2 cluster enhanced CD8+IL17a+ T cells (Tc17) formation in emphysema development in mice. Additionally, transgenic mice overexpressing Mirlet7g in T cells are resistant to Tc17 and CD4+IL17a+ T cells (Th17) development when exposed to nCB. Mechanistically, our findings reveal the master regulator of Tc17/Th17 differentiation, RAR-related orphan receptor gamma t (RORγt), as a direct target of Mirlet7 in T cells. Overall, our findings shed light on the Mirlet7/RORγt axis with Mirlet7 acting as a molecular brake in the generation of Tc17 cells and suggest a novel therapeutic approach for tempering the augmented IL-17-mediated response in emphysema.
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Affiliation(s)
- Phillip A Erice
- Immunology Graduate Program, Baylor College of MedicineHoustonUnited States
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of MedicineHoustonUnited States
| | - Xinyan Huang
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of MedicineHoustonUnited States
| | - Matthew J Seasock
- Immunology Graduate Program, Baylor College of MedicineHoustonUnited States
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of MedicineHoustonUnited States
| | - Matthew J Robertson
- Dan Duncan Comprehensive Cancer Center, Baylor College of MedicineHoustonUnited States
| | - Hui-Ying Tung
- Department of Pathology and Immunology, Baylor College of MedicineHoustonUnited States
| | - Melissa A Perez-Negron
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of MedicineHoustonUnited States
| | - Shivani L Lotlikar
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of MedicineHoustonUnited States
| | - David B Corry
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of MedicineHoustonUnited States
- Department of Pathology and Immunology, Baylor College of MedicineHoustonUnited States
- Center for Translational Research on Inflammatory Diseases, Michael E Debakey, Baylor College of MedicineHoustonUnited States
| | - Farrah Kheradmand
- Department of Pathology and Immunology, Baylor College of MedicineHoustonUnited States
- Center for Translational Research on Inflammatory Diseases, Michael E Debakey, Baylor College of MedicineHoustonUnited States
- Department of Medicine, Section of Pulmonary and Critical Care, Baylor College of MedicineHoustonUnited States
| | - Antony Rodriguez
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of MedicineHoustonUnited States
- Center for Translational Research on Inflammatory Diseases, Michael E Debakey, Baylor College of MedicineHoustonUnited States
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Erice PA, Huang X, Seasock MJ, Robertson MJ, Tung HY, Perez-Negron MA, Lotlikar SL, Corry DB, Kheradmand F, Rodriguez A. Downregulation of Let-7 miRNA promotes Tc17 differentiation and emphysema via de-repression of RORγt. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.10.12.562059. [PMID: 37905101 PMCID: PMC10614797 DOI: 10.1101/2023.10.12.562059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Environmental air irritants including nanosized carbon black (nCB) can drive systemic inflammation, promoting chronic obstructive pulmonary disease (COPD) and emphysema development. The let-7 family of miRNAs is associated with IL-17-driven T cell inflammation, a canonical signature of lung inflammation. Recent evidence suggests the let-7 family is downregulated in patients with COPD, however, whether this repression conveys a functional consequence on emphysema pathology has not been elucidated. Here we show that overall expression of the let-7 miRNA clusters, let-7b/let-7c2 and let-7a1/let-7f1/let-7d, are reduced in the lungs and T cells of smokers with emphysema as well as in mice with cigarette smoke (CS)- or nCB-elicited emphysema. We demonstrate that loss of the let-7b/let-7c2-cluster in T cells predisposed mice to exaggerated CS- or nCB-elicited emphysema. Furthermore, ablation of the let-7b/let-7c2-cluster enhanced CD8+IL17a+ T cells (Tc17) formation in emphysema development in mice. Additionally, transgenic mice overexpressing let-7 in T cells are resistant to Tc17 and CD4+IL17a+ T cells (Th17) development when exposed to nCB. Mechanistically, our findings reveal the master regulator of Tc17/Th17 differentiation, RAR-related orphan receptor gamma t (RORγt), as a direct target of let-7 miRNA in T cells. Overall, our findings shed light on the let-7/RORγt axis with let-7 acting as a molecular brake in the generation of Tc17 cells and suggests a novel therapeutic approach for tempering the augmented IL-17-mediated response in emphysema.
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Affiliation(s)
- Phillip A Erice
- Immunology Graduate Program, Baylor College of Medicine, Houston, TX, 77030
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of Medicine Houston TX, 77030
| | - Xinyan Huang
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of Medicine Houston TX, 77030
- Current address, Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Sun Yat-sen University. Guangzhou, Guangdong Province, P.R. China
| | - Matthew J Seasock
- Immunology Graduate Program, Baylor College of Medicine, Houston, TX, 77030
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of Medicine Houston TX, 77030
| | - Matthew J Robertson
- Dan Duncan Comprehensive Cancer Center, Baylor College of Medicine Houston, TX, 77030
| | - Hui-Ying Tung
- Department of Pathology and Immunology, Baylor College of Medicine Houston, TX, 77030
| | - Melissa A Perez-Negron
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of Medicine Houston TX, 77030
| | - Shivani L Lotlikar
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of Medicine Houston TX, 77030
| | - David B Corry
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of Medicine Houston TX, 77030
- Department of Pathology and Immunology, Baylor College of Medicine Houston, TX, 77030
- Center for Translational Research on Inflammatory Diseases, Michael E. Debakey, Baylor College of Medicine, Houston, TX, 77030
| | - Farrah Kheradmand
- Department of Pathology and Immunology, Baylor College of Medicine Houston, TX, 77030
- Department of Medicine, Section of Pulmonary and Critical Care, Baylor College of Medicine. Houston, TX, 77030
- Center for Translational Research on Inflammatory Diseases, Michael E. Debakey, Baylor College of Medicine, Houston, TX, 77030
| | - Antony Rodriguez
- Department of Medicine, Immunology & Allergy Rheumatology, Baylor College of Medicine Houston TX, 77030
- Center for Translational Research on Inflammatory Diseases, Michael E. Debakey, Baylor College of Medicine, Houston, TX, 77030
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Wen Y, Wang H, Tian D, Wang G. TH17 cell: a double-edged sword in the development of inflammatory bowel disease. Therap Adv Gastroenterol 2024; 17:17562848241230896. [PMID: 38390028 PMCID: PMC10883129 DOI: 10.1177/17562848241230896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 01/17/2024] [Indexed: 02/24/2024] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic nonspecific inflammatory disease of the gastrointestinal tract, and its pathogenesis has not been fully understood. Extensive dysregulation of the intestinal mucosal immune system is critical in the development and progression of IBD. T helper (Th) 17 cells have the characteristics of plasticity. They can transdifferentiate into subpopulations with different functions in response to different factors in the surrounding environment, thus taking on different roles in regulating the intestinal immune responses. In this review, we will focus on the plasticity of Th17 cells as well as the function of Th17 cells and their related cytokines in IBD. We will summarize their pathogenic and protective roles in IBD under different conditions, respectively, hoping to further deepen the understanding of the pathological mechanisms underlying IBD and provide insights for future treatment.
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Affiliation(s)
- Yue Wen
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Han Wang
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dean Tian
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Ge Wang
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
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Gray EH, Srenathan U, Durham LE, Lalnunhlimi S, Steel KJA, Catrina A, Kirkham BW, Taams LS. Human in vitro-induced IL-17A+ CD8+ T-cells exert pro-inflammatory effects on synovial fibroblasts. Clin Exp Immunol 2023; 214:103-119. [PMID: 37367825 PMCID: PMC10711358 DOI: 10.1093/cei/uxad068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/25/2023] [Accepted: 06/26/2023] [Indexed: 06/28/2023] Open
Abstract
IL-17A+ CD8+ T-cells, termed Tc17 cells, have been identified at sites of inflammation in several immune-mediated inflammatory diseases. However, the biological function of human IL-17A+ CD8+ T-cells is not well characterized, likely due in part to the relative scarcity of these cells. Here, we expanded IL-17A+ CD8+ T-cells from healthy donor PBMC or bulk CD8+ T-cell populations using an in vitro polarization protocol. We show that T-cell activation in the presence of IL-1β and IL-23 significantly increased the frequencies of IL-17A+ CD8+ T-cells, which was not further enhanced by IL-6, IL-2, or anti-IFNγ mAb addition. In vitro-generated IL-17A+ CD8+ T-cells displayed a distinct type-17 profile compared with IL-17A- CD8+ T-cells, as defined by transcriptional signature (IL17A, IL17F, RORC, RORA, MAF, IL23R, CCR6), high surface expression of CCR6 and CD161, and polyfunctional production of IL-17A, IL-17F, IL-22, IFNγ, TNFα, and GM-CSF. A significant proportion of in vitro-induced IL-17A+ CD8+ T-cells expressed TCRVα7.2 and bound MR1 tetramers indicative of MAIT cells, indicating that our protocol expanded both conventional and unconventional IL-17A+ CD8+ T-cells. Using an IL-17A secretion assay, we sorted the in vitro-generated IL-17A+ CD8+ T-cells for functional analysis. Both conventional and unconventional IL-17A+ CD8+ T-cells were able to induce pro-inflammatory IL-6 and IL-8 production by synovial fibroblasts from patients with psoriatic arthritis, which was reduced upon addition of anti-TNFα and anti-IL-17A neutralizing antibodies. Collectively, these data demonstrate that human in vitro-generated IL-17A+ CD8+ T-cells are biologically functional and that their pro-inflammatory function can be targeted, at least in vitro, using existing immunotherapy.
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Affiliation(s)
- Elizabeth H Gray
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Ushani Srenathan
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Lucy E Durham
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Sylvine Lalnunhlimi
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Kathryn J A Steel
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Anca Catrina
- Rheumatology Unit, Department of Medicine (Solna), Karolinska Institute, Stockholm, Sweden
| | - Bruce W Kirkham
- Department of Rheumatology, Guy's Hospital, Guy's and St. Thomas' NHS Foundation Trust Hospital, London, UK
| | - Leonie S Taams
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology & Microbial Sciences, King's College London, London, UK
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Prame Kumar K, Ooi JD, Goldberg R. The interplay between the microbiota, diet and T regulatory cells in the preservation of the gut barrier in inflammatory bowel disease. Front Microbiol 2023; 14:1291724. [PMID: 38107848 PMCID: PMC10722198 DOI: 10.3389/fmicb.2023.1291724] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 11/06/2023] [Indexed: 12/19/2023] Open
Abstract
Inflammatory bowel disease (IBD) is becoming more common in the Western world due to changes in diet-related microbial dysbiosis, genetics and lifestyle. Incidences of gut permeability can predate IBD and continued gut barrier disruptions increase the exposure of bacterial antigens to the immune system thereby perpetuating chronic inflammation. Currently, most of the approved IBD therapies target individual pro-inflammatory cytokines and pathways. However, they fail in approximately 50% of patients due to their inability to overcome the redundant pro inflammatory immune responses. There is increasing interest in the therapeutic potential of T regulatory cells (Tregs) in inflammatory conditions due to their widespread capability to dampen inflammation, promote tolerance of intestinal bacteria, facilitate healing of the mucosal barrier and ability to be engineered for more targeted therapy. Intestinal Treg populations are inherently shaped by dietary molecules and gut microbiota-derived metabolites. Thus, understanding how these molecules influence Treg-mediated preservation of the intestinal barrier will provide insights into immune tolerance-mediated mucosal homeostasis. This review comprehensively explores the interplay between diet, gut microbiota, and immune system in influencing the intestinal barrier function to attenuate the progression of colitis.
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Affiliation(s)
- Kathryn Prame Kumar
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, VIC, Australia
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Koh CH, Lee S, Kwak M, Kim BS, Chung Y. CD8 T-cell subsets: heterogeneity, functions, and therapeutic potential. Exp Mol Med 2023; 55:2287-2299. [PMID: 37907738 PMCID: PMC10689838 DOI: 10.1038/s12276-023-01105-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/11/2023] [Accepted: 08/12/2023] [Indexed: 11/02/2023] Open
Abstract
CD8 T cells play crucial roles in immune surveillance and defense against infections and cancer. After encountering antigenic stimulation, naïve CD8 T cells differentiate and acquire effector functions, enabling them to eliminate infected or malignant cells. Traditionally, cytotoxic T cells, characterized by their ability to produce effector cytokines and release cytotoxic granules to directly kill target cells, have been recognized as the constituents of the predominant effector T-cell subset. However, emerging evidence suggests distinct subsets of effector CD8 T cells that each exhibit unique effector functions and therapeutic potential. This review highlights recent advancements in our understanding of CD8 T-cell subsets and the contributions of these cells to various disease pathologies. Understanding the diverse roles and functions of effector CD8 T-cell subsets is crucial to discern the complex dynamics of immune responses in different disease settings. Furthermore, the development of immunotherapeutic approaches that specifically target and regulate the function of distinct CD8 T-cell subsets holds great promise for precision medicine.
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Affiliation(s)
- Choong-Hyun Koh
- Laboratory of Immune Regulation, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Suyoung Lee
- Laboratory of Immune Regulation, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea
- BK21 Plus Program, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Minkyeong Kwak
- Laboratory of Immune Regulation, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea
- BK21 Plus Program, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Byung-Seok Kim
- Division of Life Sciences, College of Life Science and Bioengineering, Incheon National University, Incheon, 22012, Republic of Korea
| | - Yeonseok Chung
- Laboratory of Immune Regulation, Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
- BK21 Plus Program, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea.
- Wide River Institute of Immunology, Seoul National University, Hongcheon, Gangwon, 25159, Republic of Korea.
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Fan W, Wang X, Zeng S, Li N, Wang G, Li R, He S, Li W, Huang J, Li X, Liu J, Hou S. Global lactylome reveals lactylation-dependent mechanisms underlying T H17 differentiation in experimental autoimmune uveitis. SCIENCE ADVANCES 2023; 9:eadh4655. [PMID: 37851814 PMCID: PMC10584346 DOI: 10.1126/sciadv.adh4655] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 09/14/2023] [Indexed: 10/20/2023]
Abstract
Dysregulation of CD4+ T cell differentiation is linked to autoimmune diseases. Metabolic reprogramming from oxidative phosphorylation to glycolysis and accumulation of lactate are involved in this process. However, the underlying mechanisms remain unclear. Our study showed that lactate-derived lactylation regulated CD4+ T cell differentiation. Lactylation levels in CD4+ T cells increased with the progression of experimental autoimmune uveitis (EAU). Inhibition of lactylation suppressed TH17 differentiation and attenuated EAU inflammation. The global lactylome revealed the landscape of lactylated sites and proteins in the CD4+ T cells of normal and EAU mice. Specifically, hyperlactylation of Ikzf1 at Lys164 promoted TH17 differentiation by directly modulating the expression of TH17-related genes, including Runx1, Tlr4, interleukin-2 (IL-2), and IL-4. Delactylation of Ikzf1 at Lys164 impaired TH17 differentiation. These findings exemplify how glycolysis regulates the site specificity of protein lactylation to promote TH17 differentiation and implicate Ikzf1 lactylation as a potential therapeutic target for autoimmune diseases.
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Affiliation(s)
- Wei Fan
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, China
- Chongqing Eye Institute, Chongqing, China
- Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China
| | - Xiaotang Wang
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, China
- Chongqing Eye Institute, Chongqing, China
- Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China
| | - Shuhao Zeng
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, China
- Chongqing Eye Institute, Chongqing, China
- Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China
| | - Na Li
- School of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Guoqing Wang
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, China
- Chongqing Eye Institute, Chongqing, China
- Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China
| | - Ruonan Li
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, China
- Chongqing Eye Institute, Chongqing, China
- Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China
| | - Siyuan He
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, China
- Chongqing Eye Institute, Chongqing, China
- Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China
| | - Wanqian Li
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, China
- Chongqing Eye Institute, Chongqing, China
- Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China
| | - Jiaxing Huang
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, China
- Chongqing Eye Institute, Chongqing, China
- Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China
| | - Xingran Li
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, China
- Chongqing Eye Institute, Chongqing, China
- Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China
| | - Jiangyi Liu
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, China
- Chongqing Eye Institute, Chongqing, China
- Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China
| | - Shengping Hou
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory of Ophthalmology, Chongqing, China
- Chongqing Eye Institute, Chongqing, China
- Chongqing Branch of National Clinical Research Center for Ocular Diseases, Chongqing, China
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing, 100730, China
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Schardey J, Lu C, Neumann J, Wirth U, Li Q, Jiang T, Zimmermann P, Andrassy J, Bazhin AV, Werner J, Kühn F. Differential Immune Infiltration Profiles in Colitis-Associated Colorectal Cancer versus Sporadic Colorectal Cancer. Cancers (Basel) 2023; 15:4743. [PMID: 37835436 PMCID: PMC10571767 DOI: 10.3390/cancers15194743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 09/21/2023] [Accepted: 09/24/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND Chronic inflammation is a significant factor in colorectal cancer (CRC) development, especially in colitis-associated CRC (CAC). T-cell exhaustion is known to influence inflammatory bowel disease (IBD) progression and antitumor immunity in IBD patients. This study aimed to identify unique immune infiltration characteristics in CAC patients. METHODS We studied 20 CAC and 20 sporadic CRC (sCRC) patients, who were matched by tumor stage, grade, and location. Immunohistochemical staining targeted various T-cell markers (CD3, CD4, CD8, and FOXP3), T-cell exhaustion markers (TOX and TIGIT), a B-cell marker (CD20), and a neutrophil marker (CD66b) in tumor and tumor-free mucosa from both groups. The quantification of the tumor immune stroma algorithm assessed immune-infiltrating cells. RESULTS CAC patients had significantly lower TOX+ cell infiltration than sCRC in tumors (p = 0.02) and paracancerous tissues (p < 0.01). Right-sided CAC showed increased infiltration of TOX+ cells (p = 0.01), FOXP3+ regulatory T-cells (p < 0.01), and CD20+ B-cells (p < 0.01) compared to left-sided CAC. In sCRC, higher tumor stages (III and IV) had significantly lower TIGIT+ infiltrate than stages I and II. In CAC, high CD3+ (p < 0.01) and CD20+ (p < 0.01) infiltrates correlated with improved overall survival. In sCRC, better survival was associated with decreased TIGIT+ cells (p < 0.038) and reduced CD8+ infiltrates (p = 0.02). CONCLUSION In CAC, high CD3+ and CD20+ infiltrates relate to improved survival, while this association is absent in sCRC. The study revealed marked differences in TIGIT and TOX expression, emphasizing distinctions between CAC and sCRC. T-cell exhaustion appears to have a different role in CAC development.
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Affiliation(s)
- Josefine Schardey
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Hospital Munich, 81377 Munich, Germany
| | - Can Lu
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Hospital Munich, 81377 Munich, Germany
- Department of Colorectal Surgery and Oncology (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education & Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
- Zhejiang Provincial Clinical Research Center for CANCER & Cancer Center of Zhejiang University, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Jens Neumann
- Department of Pathology, Ludwig-Maximilians University, 81377 Munich, Germany
| | - Ulrich Wirth
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Hospital Munich, 81377 Munich, Germany
| | - Qiang Li
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Hospital Munich, 81377 Munich, Germany
| | - Tianxiao Jiang
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Hospital Munich, 81377 Munich, Germany
| | - Petra Zimmermann
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Hospital Munich, 81377 Munich, Germany
| | - Joachim Andrassy
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Hospital Munich, 81377 Munich, Germany
| | - Alexandr V. Bazhin
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Hospital Munich, 81377 Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, 80336 Munich, Germany
| | - Jens Werner
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Hospital Munich, 81377 Munich, Germany
| | - Florian Kühn
- Department of General, Visceral and Transplant Surgery, Ludwig-Maximilians-University Hospital Munich, 81377 Munich, Germany
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9
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Navarro-Compán V, Puig L, Vidal S, Ramírez J, Llamas-Velasco M, Fernández-Carballido C, Almodóvar R, Pinto JA, Galíndez-Aguirregoikoa E, Zarco P, Joven B, Gratacós J, Juanola X, Blanco R, Arias-Santiago S, Sanz Sanz J, Queiro R, Cañete JD. The paradigm of IL-23-independent production of IL-17F and IL-17A and their role in chronic inflammatory diseases. Front Immunol 2023; 14:1191782. [PMID: 37600764 PMCID: PMC10437113 DOI: 10.3389/fimmu.2023.1191782] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 07/05/2023] [Indexed: 08/22/2023] Open
Abstract
Interleukin-17 family (IL-17s) comprises six structurally related members (IL-17A to IL-17F); sequence homology is highest between IL-17A and IL-17F, displaying certain overlapping functions. In general, IL-17A and IL-17F play important roles in chronic inflammation and autoimmunity, controlling bacterial and fungal infections, and signaling mainly through activation of the nuclear factor-kappa B (NF-κB) pathway. The role of IL-17A and IL-17F has been established in chronic immune-mediated inflammatory diseases (IMIDs), such as psoriasis (PsO), psoriatic arthritis (PsA), axial spondylarthritis (axSpA), hidradenitis suppurativa (HS), inflammatory bowel disease (IBD), multiple sclerosis (MS), and asthma. CD4+ helper T cells (Th17) activated by IL-23 are well-studied sources of IL-17A and IL-17F. However, other cellular subtypes can also produce IL-17A and IL-17F, including gamma delta (γδ) T cells, alpha beta (αβ) T cells, type 3 innate lymphoid cells (ILC3), natural killer T cells (NKT), or mucosal associated invariant T cells (MAIT). Interestingly, the production of IL-17A and IL-17F by innate and innate-like lymphocytes can take place in an IL-23 independent manner in addition to IL-23 classical pathway. This would explain the limitations of the inhibition of IL-23 in the treatment of patients with certain rheumatic immune-mediated conditions such as axSpA. Despite their coincident functions, IL-17A and IL-17F contribute independently to chronic tissue inflammation having somehow non-redundant roles. Although IL-17A has been more widely studied, both IL-17A and IL-17F are overexpressed in PsO, PsA, axSpA and HS. Therefore, dual inhibition of IL-17A and IL-17F could provide better outcomes than IL-23 or IL-17A blockade.
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Affiliation(s)
| | - Luis Puig
- Department of Dermatology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Silvia Vidal
- Immunology-Inflammatory Diseases, Institut de Recerca de l’Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - Julio Ramírez
- Arthritis Unit, Department of Rheumatology, Hospital Clínic and Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Mar Llamas-Velasco
- Department of Dermatology, Hospital Universitario La Princesa, Madrid, Spain
| | | | - Raquel Almodóvar
- Department of Rheumatology, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, Spain
| | - José Antonio Pinto
- Department of Rheumatology, Complejo Hospitalario Universitario de A Coruña, Instituto de Investigación Biomédica de A Coruña (INIBIC), A Coruña, Spain
| | | | - Pedro Zarco
- Department of Rheumatology, Hospital Universitario Fundación Alcorcón, Alcorcón, Madrid, Spain
| | - Beatriz Joven
- Department of Rheumatology, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Jordi Gratacós
- Department of Rheumatology, Medicine Department Autonomus University of Barcelona (UAB), I3PT, University Hospital Parc Taulí Sabadell, Barcelona, Spain
| | - Xavier Juanola
- Department of Rheumatology, University Hospital Bellvitge, Instituto de Investigación Biomédica de Bellvitge (IDIBELL), Barcelona, Spain
| | - Ricardo Blanco
- Department of Rheumatology, Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - Salvador Arias-Santiago
- Department of Dermatology, Hospital Universitario Virgen de las Nieves, Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Department of Dermatology, Facultad de Medicina, Universidad de Granada, Spain
| | - Jesús Sanz Sanz
- Department of Rheumatology, Hospital Universitario Puerta del Hierro Majadahonda, Madrid, Spain
| | - Rubén Queiro
- Department of Rheumatology, Hospital Universitario Central de Asturias, Oviedo, Asturias, Spain
| | - Juan D. Cañete
- Arthritis Unit, Department of Rheumatology, Hospital Clínic and Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), Barcelona, Spain
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Hipp AV, Bengsch B, Globig AM. Friend or Foe - Tc17 cell generation and current evidence for their importance in human disease. DISCOVERY IMMUNOLOGY 2023; 2:kyad010. [PMID: 38567057 PMCID: PMC10917240 DOI: 10.1093/discim/kyad010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/12/2023] [Accepted: 07/19/2023] [Indexed: 04/04/2024]
Abstract
The term Tc17 cells refers to interleukin 17 (IL-17)-producing CD8+ T cells. While IL-17 is an important mediator of mucosal defense, it is also centrally involved in driving the inflammatory response in immune-mediated diseases, such as psoriasis, multiple sclerosis, and inflammatory bowel disease. In this review, we aim to gather the current knowledge on the phenotypic and transcriptional profile, the in vitro and in vivo generation of Tc17 cells, and the evidence pointing towards a relevant role of Tc17 cells in human diseases such as infectious diseases, cancer, and immune-mediated diseases.
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Affiliation(s)
- Anna Veronika Hipp
- Clinic for Internal Medicine II, Gastroenterology, Hepatology, Endocrinology, and Infectious Diseases, University Medical Center Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Bertram Bengsch
- Clinic for Internal Medicine II, Gastroenterology, Hepatology, Endocrinology, and Infectious Diseases, University Medical Center Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Anna-Maria Globig
- Clinic for Internal Medicine II, Gastroenterology, Hepatology, Endocrinology, and Infectious Diseases, University Medical Center Freiburg, Faculty of Medicine, Freiburg, Germany
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11
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Jabeen MF, Hinks TSC. MAIT cells and the microbiome. Front Immunol 2023; 14:1127588. [PMID: 36911683 PMCID: PMC9995591 DOI: 10.3389/fimmu.2023.1127588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/14/2023] [Indexed: 02/25/2023] Open
Abstract
Mucosal associated invariant T (MAIT) cells are innate-like T lymphocytes, strikingly enriched at mucosal surfaces and characterized by a semi-invariant αβ T cell receptor (TCR) recognizing microbial derived intermediates of riboflavin synthesis presented by the MHC-Ib molecule MR1. At barrier sites MAIT cells occupy a prime position for interaction with commensal microorganisms, comprising the microbiota. The microbiota is a rich source of riboflavin derived antigens required in early life to promote intra-thymic MAIT cell development and sustain a life-long population of tissue resident cells. A symbiotic relationship is thought to be maintained in health whereby microbes promote maturation and homeostasis, and in turn MAIT cells can engage a TCR-dependent "tissue repair" program in the presence of commensal organisms conducive to sustaining barrier function and integrity of the microbial community. MAIT cell activation can be induced in a MR1-TCR dependent manner or through MR1-TCR independent mechanisms via pro-inflammatory cytokines interleukin (IL)-12/-15/-18 and type I interferon. MAIT cells provide immunity against bacterial, fungal and viral pathogens. However, MAIT cells may have deleterious effects through insufficient or exacerbated effector activity and have been implicated in autoimmune, inflammatory and allergic conditions in which microbial dysbiosis is a shared feature. In this review we summarize the current knowledge on the role of the microbiota in the development and maintenance of circulating and tissue resident MAIT cells. We also explore how microbial dysbiosis, alongside changes in intestinal permeability and imbalance between pro- and anti-inflammatory components of the immune response are together involved in the potential pathogenicity of MAIT cells. Whilst there have been significant improvements in our understanding of how the microbiota shapes MAIT cell function, human data are relatively lacking, and it remains unknown if MAIT cells can conversely influence the composition of the microbiota. We speculate whether, in a human population, differences in microbiomes might account for the heterogeneity observed in MAIT cell frequency across mucosal sites or between individuals, and response to therapies targeting T cells. Moreover, we speculate whether manipulation of the microbiota, or harnessing MAIT cell ligands within the gut or disease-specific sites could offer novel therapeutic strategies.
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Affiliation(s)
- Maisha F. Jabeen
- Respiratory Medicine Unit, Experimental Medicine Division, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
- National Institute for Health Research Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, United Kingdom
| | - Timothy S. C. Hinks
- Respiratory Medicine Unit, Experimental Medicine Division, Nuffield Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
- National Institute for Health Research Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, United Kingdom
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