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Abstract
The thymus is an evolutionarily conserved organ that supports the development of T cells. Not only does the thymic environment support the rearrangement and expression of diverse T cell receptors but also provides a unique niche for the selection of appropriate T cell clones. Thymic selection ensures that the repertoire of available T cells is both useful (being MHC-restricted) and safe (being self-tolerant). The unique antigen-presentation features of the thymus ensure that the display of self-antigens is optimal to induce tolerance to all types of self-tissue. MHC class-specific functions of CD4+ T helper cells, CD8+ killer T cells and CD4+ regulatory T cells are also established in the thymus. Finally, the thymus provides signals for the development of several minor T cell subsets that promote immune and tissue homeostasis. This Review provides an introductory-level overview of our current understanding of the sophisticated thymic selection mechanisms that ensure T cells are useful and safe.
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Affiliation(s)
- K Maude Ashby
- Center for Immunology, University of Minnesota, Minneapolis, MN, USA
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2
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Hu Y, Hu Q, Li Y, Lu L, Xiang Z, Yin Z, Kabelitz D, Wu Y. γδ T cells: origin and fate, subsets, diseases and immunotherapy. Signal Transduct Target Ther 2023; 8:434. [PMID: 37989744 PMCID: PMC10663641 DOI: 10.1038/s41392-023-01653-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/07/2023] [Accepted: 09/12/2023] [Indexed: 11/23/2023] Open
Abstract
The intricacy of diseases, shaped by intrinsic processes like immune system exhaustion and hyperactivation, highlights the potential of immune renormalization as a promising strategy in disease treatment. In recent years, our primary focus has centered on γδ T cell-based immunotherapy, particularly pioneering the use of allogeneic Vδ2+ γδ T cells for treating late-stage solid tumors and tuberculosis patients. However, we recognize untapped potential and optimization opportunities to fully harness γδ T cell effector functions in immunotherapy. This review aims to thoroughly examine γδ T cell immunology and its role in diseases. Initially, we elucidate functional differences between γδ T cells and their αβ T cell counterparts. We also provide an overview of major milestones in γδ T cell research since their discovery in 1984. Furthermore, we delve into the intricate biological processes governing their origin, development, fate decisions, and T cell receptor (TCR) rearrangement within the thymus. By examining the mechanisms underlying the anti-tumor functions of distinct γδ T cell subtypes based on γδTCR structure or cytokine release, we emphasize the importance of accurate subtyping in understanding γδ T cell function. We also explore the microenvironment-dependent functions of γδ T cell subsets, particularly in infectious diseases, autoimmune conditions, hematological malignancies, and solid tumors. Finally, we propose future strategies for utilizing allogeneic γδ T cells in tumor immunotherapy. Through this comprehensive review, we aim to provide readers with a holistic understanding of the molecular fundamentals and translational research frontiers of γδ T cells, ultimately contributing to further advancements in harnessing the therapeutic potential of γδ T cells.
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Affiliation(s)
- Yi Hu
- Microbiology and Immunology Department, School of Medicine, Faculty of Medical Science, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Qinglin Hu
- Microbiology and Immunology Department, School of Medicine, Faculty of Medical Science, Jinan University, Guangzhou, Guangdong, 510632, China
- Guangdong Provincial Key Laboratory of Tumour Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, Guangdong, 519000, China
| | - Yongsheng Li
- Department of Medical Oncology, Chongqing University Cancer Hospital, Chongqing, 400030, China
| | - Ligong Lu
- Guangdong Provincial Key Laboratory of Tumour Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, Guangdong, 519000, China
| | - Zheng Xiang
- Microbiology and Immunology Department, School of Medicine, Faculty of Medical Science, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Zhinan Yin
- Biomedical Translational Research Institute, Jinan University, Guangzhou, Guangdong, 510632, China.
| | - Dieter Kabelitz
- Institute of Immunology, Christian-Albrechts-University Kiel, Kiel, Germany.
| | - Yangzhe Wu
- Guangdong Provincial Key Laboratory of Tumour Interventional Diagnosis and Treatment, Zhuhai Institute of Translational Medicine, Zhuhai People's Hospital Affiliated with Jinan University, Jinan University, Zhuhai, Guangdong, 519000, China.
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MacNabb BW, Rothenberg EV. Speed and navigation control of thymocyte development by the fetal T-cell gene regulatory network. Immunol Rev 2023; 315:171-196. [PMID: 36722494 PMCID: PMC10771342 DOI: 10.1111/imr.13190] [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] [Indexed: 02/02/2023]
Abstract
T-cell differentiation is a tightly regulated developmental program governed by interactions between transcription factors (TFs) and chromatin landscapes and affected by signals received from the thymic stroma. This process is marked by a series of checkpoints: T-lineage commitment, T-cell receptor (TCR)β selection, and positive and negative selection. Dynamically changing combinations of TFs drive differentiation along the T-lineage trajectory, through mechanisms that have been most extensively dissected in adult mouse T-lineage cells. However, fetal T-cell development differs from adult in ways that suggest that these TF mechanisms are not fully deterministic. The first wave of fetal T-cell differentiation occurs during a unique developmental window during thymic morphogenesis, shows more rapid kinetics of differentiation with fewer rounds of cell division, and gives rise to unique populations of innate lymphoid cells (ILCs) and invariant γδT cells that are not generated in the adult thymus. As the characteristic kinetics and progeny biases are cell-intrinsic properties of thymic progenitors, the differences could be based on distinct TF network circuitry within the progenitors themselves. Here, we review recent single-cell transcriptome data that illuminate the TF networks involved in T-cell differentiation in the fetal and adult mouse thymus.
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Affiliation(s)
- Brendan W MacNabb
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, California, USA
| | - Ellen V Rothenberg
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, California, USA
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Yao YE, Qin CC, Yang CM, Huang TX. γδT17/γδTreg cell subsets: a new paradigm for asthma treatment. J Asthma 2021; 59:2028-2038. [PMID: 34634976 DOI: 10.1080/02770903.2021.1980585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Bronchial asthma (abbreviated as asthma), is a heterogeneous disease characterized by chronic airway inflammation and airway hyperresponsiveness. The main characteristics of asthma include variable reversible airflow limitation and airway remodeling. The pathogenesis of asthma is still unclear. Th1/Th2 imbalance, Th1 deficiency and Th2 hyperfunction are classic pathophysiological mechanisms of asthma. Some studies have shown that the imbalance of the Th1/Th2 cellular immune model and Th17/Treg imbalance play a key role in the occurrence and development of asthma; however, these imbalances do not fully explain the disease. In recent years, studies have shown that γδT and γδT17 cells are involved in the pathogenesis of asthma. γδTreg has a potential immunosuppressive function, but its regulatory mechanisms have not been fully elucidated. In this paper, we reviewed the role of γδT17/γδTreg cells in bronchial asthma, including the mechanisms of their development and activation. Here we propose that γδT17/Treg cell subsets contribute to the occurrence and development of asthma, constituting a novel potential target for asthma treatment.
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Affiliation(s)
- Yi-En Yao
- Department of Respiratory Medicine, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Cai-Cheng Qin
- Department of Respiratory Medicine, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Chao-Mian Yang
- Department of Respiratory Medicine, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Tian-Xia Huang
- Department of Respiratory Medicine, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, China
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5
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Kobayashi S, Phung HT, Kagawa Y, Miyazaki H, Takahashi Y, Asao A, Maruyama T, Yoshimura A, Ishii N, Owada Y. Fatty acid-binding protein 3 controls contact hypersensitivity through regulating skin dermal Vγ4 + γ/δ T cell in a murine model. Allergy 2021; 76:1776-1788. [PMID: 33090507 PMCID: PMC8246717 DOI: 10.1111/all.14630] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 09/11/2020] [Accepted: 09/21/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Fatty acid-binding protein 3 (FABP3) is a cytosolic carrier protein of polyunsaturated fatty acids (PUFAs) and regulates cellular metabolism. However, the physiological functions of FABP3 in immune cells and how FABP3 regulates inflammatory responses remain unclear. METHODS Contact hypersensitivity (CHS) induced by 2,4-dinitrofluorobenzene (DNFB) and fluorescein isothiocyanate was applied to the skin wild-type and Fabp3-/- mice. Skin inflammation was assessed using FACS, histological, and qPCR analyses. The development of γ/δ T cells was evaluated by a co-culture system with OP9/Dll1 cells in the presence or absence of transgene of FABP3. RESULTS Fabp3-deficient mice exhibit a more severe phenotype of contact hypersensitivity (CHS) accompanied by infiltration of IL-17-producing Vγ4+ γ/δ T cells that critically control skin inflammation. In Fabp3-/- mice, we found a larger proportion of Vγ4+ γ/δ T cells in the skin, even though the percentage of total γ/δ T cells did not change at steady state. Similarly, juvenile Fabp3-/- mice also contained a higher amount of Vγ4+ γ/δ T cells not only in the skin but in the thymus when compared with wild-type mice. Furthermore, thymic double-negative (DN) cells expressed FABP3, and FABP3 negatively regulates the development of Vγ4+ γ/δ T cells in the thymus. CONCLUSIONS These findings suggest that FABP3 functions as a negative regulator of skin inflammation through limiting pathogenic Vγ4+ γ/δ T-cell generation in the thymus.
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Affiliation(s)
- Shuhei Kobayashi
- Department of Organ AnatomyTohoku University Graduate School of MedicineSendaiJapan
| | - Hai The Phung
- Department of Microbiology and ImmunologyTohoku University Graduate School of MedicineSendaiJapan
| | - Yoshiteru Kagawa
- Department of Organ AnatomyTohoku University Graduate School of MedicineSendaiJapan
| | - Hirofumi Miyazaki
- Department of Organ AnatomyTohoku University Graduate School of MedicineSendaiJapan
| | - Yu Takahashi
- Department of Organ AnatomyTohoku University Graduate School of MedicineSendaiJapan
| | - Atsuko Asao
- Department of Microbiology and ImmunologyTohoku University Graduate School of MedicineSendaiJapan
| | - Takashi Maruyama
- Mucosal Immunology UnitNational Institute of Dental and Craniofacial ResearchNational Institutes of HealthBethesdaMDUSA
| | - Akihiko Yoshimura
- Department of Microbiology and ImmunologyKeio University School of MedicineTokyoJapan
| | - Naoto Ishii
- Department of Microbiology and ImmunologyTohoku University Graduate School of MedicineSendaiJapan
| | - Yuji Owada
- Department of Organ AnatomyTohoku University Graduate School of MedicineSendaiJapan
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6
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Chen ELY, Lee CR, Thompson PK, Wiest DL, Anderson MK, Zúñiga-Pflücker JC. Ontogenic timing, T cell receptor signal strength, and Notch signaling direct γδ T cell functional differentiation in vivo. Cell Rep 2021; 35:109227. [PMID: 34107257 PMCID: PMC8256923 DOI: 10.1016/j.celrep.2021.109227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 02/20/2021] [Accepted: 05/14/2021] [Indexed: 12/29/2022] Open
Abstract
γδ T cells form an integral arm of the immune system and are critical during protective and destructive immunity. However, how γδ T cells are functionally programmed in vivo remains unclear. Here, we employ RBPJ-inducible and KN6-transgenic mice to assess the roles of ontogenic timing, T cell receptor (TCR) signal strength, and Notch signaling. We find skewing of Vγ1+ cells toward the PLZF+Lin28b+ lineage at the fetal stage. Generation of interleukin-17 (IL-17)-producing γδ T cells is favored during, although not exclusive to, the fetal stage. Surprisingly, Notch signaling is dispensable for peripheral γδ T cell IL-17 production. Strong TCR signals, together with Notch, promote IL-4 differentiation. Conversely, less strong TCR signals promote Notch-independent IL-17 differentiation. Single-cell transcriptomic analysis reveals differential programming instilled by TCR signal strength and Notch for specific subsets. Thus, our results precisely define the roles of ontogenic timing, TCR signal strength, and Notch signaling in γδ T cell functional programming in vivo.
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Affiliation(s)
- Edward L Y Chen
- Sunnybrook Research Institute, Toronto, ON, Canada; Department of Immunology, University of Toronto, Toronto, ON, Canada
| | | | | | - David L Wiest
- Blood Cell Development and Function, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Michele K Anderson
- Sunnybrook Research Institute, Toronto, ON, Canada; Department of Immunology, University of Toronto, Toronto, ON, Canada
| | - Juan Carlos Zúñiga-Pflücker
- Sunnybrook Research Institute, Toronto, ON, Canada; Department of Immunology, University of Toronto, Toronto, ON, Canada.
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Łukasik Z, Gracey E, Venken K, Ritchlin C, Elewaut D. Crossing the boundaries: IL-23 and its role in linking inflammation of the skin, gut and joints. Rheumatology (Oxford) 2021; 60:iv16-iv27. [PMID: 33961030 PMCID: PMC8527243 DOI: 10.1093/rheumatology/keab385] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/17/2021] [Indexed: 11/17/2022] Open
Abstract
Several lines of evidence point towards the central role of IL-23 as a crucial inflammatory mediator in the pathogenesis of SpA—a group of inflammatory arthritic diseases whose symptoms span the skin, gastrointestinal tract and joints. While therapeutic blockade of IL-23 proved successful in the treatment of IBD, psoriatic skin disease and peripheral SpA, it failed in patients suffering from SpA with predominantly axial involvement. Here we review state-of-the-art discoveries on IL-23 signalling pathways across target tissues involved in SpA. We discuss the discrepancies in resident IL-23–responding cells and their downstream activities across skin, gut and joint that shape the unique immunological landscape of SpA.
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Affiliation(s)
- Zuzanna Łukasik
- Department of Internal Medicine and Pediatrics, UZ Ghent, Ghent University, Ghent, Belgium.,VIB Center for Inflammation Research, Ghent University, Belgium
| | - Eric Gracey
- Department of Internal Medicine and Pediatrics, UZ Ghent, Ghent University, Ghent, Belgium.,VIB Center for Inflammation Research, Ghent University, Belgium
| | - Koen Venken
- Department of Internal Medicine and Pediatrics, UZ Ghent, Ghent University, Ghent, Belgium.,VIB Center for Inflammation Research, Ghent University, Belgium
| | - Christopher Ritchlin
- Department of Medicine, University of Rochester Medical Center, Rochester, New York, USA
| | - Dirk Elewaut
- Department of Internal Medicine and Pediatrics, UZ Ghent, Ghent University, Ghent, Belgium.,VIB Center for Inflammation Research, Ghent University, Belgium.,Ghent Gut Inflammation Group, Ghent University, Ghent, Belgium
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8
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Xu P, Zhang F, Chang MM, Zhong C, Sun CH, Zhu HR, Yao JC, Li ZZ, Li ST, Zhang WC, Sun GD. Recruitment of γδ T cells to the lesion via the CCL2/CCR2 signaling after spinal cord injury. J Neuroinflammation 2021; 18:64. [PMID: 33653377 PMCID: PMC7927238 DOI: 10.1186/s12974-021-02115-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 02/16/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Immune cell infiltration and neuroinflammation are heavily associated with spinal cord injury (SCI). C-C motif chemokine ligand 2/C-C chemokine receptor type 2 (CCL2/CCR2) axis has been identified as a critical role player during the invasion of immune cells to lesions in many diseases. γδ T cells, a subgroup of T cells, manage the course of inflammation response in various diseases; however, it remains unknown whether γδ T cells are recruited to injury site through CCL2/CCR2 signaling and exert the regulation effect on neuroinflammation after SCI. METHODS Basso Mouse Scale (BMS), regularity index, cadence, max contact area, and motor-evoked potential testing (MEP) were measured to determine the neurological function recovery after spinal cord injury. Nissl staining was performed to identify the number of surviving motor neurons at lesion epicenter. Immunofluorescence, Western blot, enzyme-linked immunosorbent assays (ELISA), and quantitative real-time polymerase chain reaction (QRT-PCR) also were employed to evaluate the expression of associated proteins and genes. RESULTS In this study, we demonstrated that TCRδ-/- mice present improved neurological recovery after SCI. γδ T cell recruitment to the SCI site was significantly reduced and motor functional improvement enhanced in CCL2-/- and CCR2-/- mouse strains. Furthermore, reconstitution of TCRδ-/- mice with γδ T cells extracted from CCR2-/- mice also showed similar results to CCL2 and CCR2 deficient mice. CONCLUSIONS In conclusion, γδ T cell recruitment to SCI site promotes inflammatory response and exacerbates neurological impairment. CCL2/CCR2 signaling is a vital recruitment mechanism of γδ T cells to the SCI site, and it may be taken as a novel therapeutic target for future SCI.
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Affiliation(s)
- Ping Xu
- Department of Orthopedics, The First Affiliated Hospital of Jinan University, 601 West Whampoa Avenue, Guangzhou, 510000, China
| | - Feng Zhang
- Intensive Care Unit, First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Min-Min Chang
- College of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Cheng Zhong
- Department of Orthopedics, The Affiliated Jiangmen Traditional Chinese Medicine Hospital of Jinan University, Jiangmen, China
| | - Cheng-Hong Sun
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, China
| | - Hao-Ran Zhu
- Department of Orthopedics, The First Affiliated Hospital of Jinan University, 601 West Whampoa Avenue, Guangzhou, 510000, China
| | - Jing-Chun Yao
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, China
| | - Zhi-Zhong Li
- Department of Orthopedics, The First Affiliated Hospital of Jinan University, 601 West Whampoa Avenue, Guangzhou, 510000, China.,Heyuan Affiliated Hospital of Jinan University, 733 Wenxiang Road, Heyuan, 517000, China
| | - Si-Tao Li
- Department of Pediatrics, The Sixth Affiliated Hospital, Sun Yat-sen University, No. 26 Yuancun Erheng Road, Tianhe District, Guangzhou, 510655, China.
| | - Wen-Cai Zhang
- Department of Orthopedics, The First Affiliated Hospital of Jinan University, 601 West Whampoa Avenue, Guangzhou, 510000, China.
| | - Guo-Dong Sun
- Department of Orthopedics, The First Affiliated Hospital of Jinan University, 601 West Whampoa Avenue, Guangzhou, 510000, China.
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9
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Lopes N, McIntyre C, Martin S, Raverdeau M, Sumaria N, Kohlgruber AC, Fiala GJ, Agudelo LZ, Dyck L, Kane H, Douglas A, Cunningham S, Prendeville H, Loftus R, Carmody C, Pierre P, Kellis M, Brenner M, Argüello RJ, Silva-Santos B, Pennington DJ, Lynch L. Distinct metabolic programs established in the thymus control effector functions of γδ T cell subsets in tumor microenvironments. Nat Immunol 2021; 22:179-192. [PMID: 33462452 PMCID: PMC7610600 DOI: 10.1038/s41590-020-00848-3] [Citation(s) in RCA: 98] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 11/24/2020] [Indexed: 01/29/2023]
Abstract
Metabolic programming controls immune cell lineages and functions, but little is known about γδ T cell metabolism. Here, we found that γδ T cell subsets making either interferon-γ (IFN-γ) or interleukin (IL)-17 have intrinsically distinct metabolic requirements. Whereas IFN-γ+ γδ T cells were almost exclusively dependent on glycolysis, IL-17+ γδ T cells strongly engaged oxidative metabolism, with increased mitochondrial mass and activity. These distinct metabolic signatures were surprisingly imprinted early during thymic development and were stably maintained in the periphery and within tumors. Moreover, pro-tumoral IL-17+ γδ T cells selectively showed high lipid uptake and intracellular lipid storage and were expanded in obesity and in tumors of obese mice. Conversely, glucose supplementation enhanced the antitumor functions of IFN-γ+ γδ T cells and reduced tumor growth upon adoptive transfer. These findings have important implications for the differentiation of effector γδ T cells and their manipulation in cancer immunotherapy.
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MESH Headings
- Animals
- Breast Neoplasms/immunology
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Breast Neoplasms/therapy
- Cell Line, Tumor
- Cell Lineage
- Colonic Neoplasms/immunology
- Colonic Neoplasms/metabolism
- Colonic Neoplasms/pathology
- Colonic Neoplasms/therapy
- Energy Metabolism
- Female
- Glucose/metabolism
- Glycolysis
- Humans
- Immunotherapy, Adoptive
- Interferon-gamma/metabolism
- Interleukin-17/metabolism
- Lipid Metabolism
- Lymphocytes, Tumor-Infiltrating/immunology
- Lymphocytes, Tumor-Infiltrating/metabolism
- Lymphocytes, Tumor-Infiltrating/transplantation
- Melanoma, Experimental/immunology
- Melanoma, Experimental/metabolism
- Melanoma, Experimental/pathology
- Melanoma, Experimental/therapy
- Mice, Inbred C57BL
- Mice, Transgenic
- Mitochondria/metabolism
- Obesity/immunology
- Obesity/metabolism
- Organ Culture Techniques
- Phenotype
- Receptors, Antigen, T-Cell, gamma-delta/metabolism
- Signal Transduction
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/metabolism
- T-Lymphocyte Subsets/transplantation
- Thymus Gland/immunology
- Thymus Gland/metabolism
- Tumor Burden
- Tumor Microenvironment
- Mice
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Affiliation(s)
- Noella Lopes
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Claire McIntyre
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Stefania Martin
- Blizard Institute, Barts and The London School of Medicine, Queen Mary University of London, London, UK
| | - Mathilde Raverdeau
- Trinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland
| | - Nital Sumaria
- Blizard Institute, Barts and The London School of Medicine, Queen Mary University of London, London, UK
| | | | - Gina J Fiala
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Leandro Z Agudelo
- MIT Computer Science and Artificial Intelligence Laboratory, Cambridge, MA, USA
| | - Lydia Dyck
- Trinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland
| | - Harry Kane
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Trinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland
| | - Aaron Douglas
- Trinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland
| | - Stephen Cunningham
- Trinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland
| | - Hannah Prendeville
- Trinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland
| | - Roisin Loftus
- Trinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland
| | - Colleen Carmody
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Philippe Pierre
- Aix Marseille Université, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
- Institute for Research in Biomedicine (iBiMED) and Ilidio Pinho Foundation, Department of Medical Sciences, University of Aveiro, Aveiro, Portugal
| | - Manolis Kellis
- MIT Computer Science and Artificial Intelligence Laboratory, Cambridge, MA, USA
| | - Michael Brenner
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Rafael J Argüello
- Aix Marseille Université, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Bruno Silva-Santos
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Daniel J Pennington
- Blizard Institute, Barts and The London School of Medicine, Queen Mary University of London, London, UK.
| | - Lydia Lynch
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Trinity Biomedical Science Institute, Trinity College Dublin, Dublin, Ireland
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10
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Molecular Changes Underlying Hypertrophic Scarring Following Burns Involve Specific Deregulations at All Wound Healing Stages (Inflammation, Proliferation and Maturation). Int J Mol Sci 2021; 22:ijms22020897. [PMID: 33477421 PMCID: PMC7831008 DOI: 10.3390/ijms22020897] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 01/13/2021] [Accepted: 01/14/2021] [Indexed: 12/14/2022] Open
Abstract
Excessive connective tissue accumulation, a hallmark of hypertrophic scaring, results in progressive deterioration of the structure and function of organs. It can also be seen during tumor growth and other fibroproliferative disorders. These processes result from a wide spectrum of cross-talks between mesenchymal, epithelial and inflammatory/immune cells that have not yet been fully understood. In the present review, we aimed to describe the molecular features of fibroblasts and their interactions with immune and epithelial cells and extracellular matrix. We also compared different types of fibroblasts and their roles in skin repair and regeneration following burn injury. In summary, here we briefly review molecular changes underlying hypertrophic scarring following burns throughout all basic wound healing stages, i.e. during inflammation, proliferation and maturation.
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11
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Xu Y, Dimitrion P, Cvetkovski S, Zhou L, Mi QS. Epidermal resident γδ T cell development and function in skin. Cell Mol Life Sci 2021; 78:573-580. [PMID: 32803399 PMCID: PMC11073445 DOI: 10.1007/s00018-020-03613-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 06/24/2020] [Accepted: 07/30/2020] [Indexed: 12/22/2022]
Abstract
Epidermal resident γδ T cells, or dendritic epidermal T cells (DETCs) in mice, are a unique and conserved population of γδ T cells enriched in the epidermis, where they serve as the regulators of immune responses and sense skin injury. Despite the great advances in the understanding of the development, homeostasis, and function of DETCs in the past decades, the origin and the underlying molecular mechanisms remain elusive. Here, we reviewed the recent research progress on DETCs, including their origin and homeostasis in the skin, especially at transcriptional and epigenetic levels, and discuss the involvement of DETCs in skin diseases.
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Affiliation(s)
- Yingping Xu
- Experimental Research Center, Dermatology Hospital of Southern Medical University, and Guangdong Provincial Dermatology Hospital, Guangzhou, China
- Center for Cutaneous Biology and Immunology, Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
| | - Peter Dimitrion
- Center for Cutaneous Biology and Immunology, Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
- Immunology Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, USA
- Department of Biochemistry, Microbiology and Immunology, Wayne State University School Medicine University, Detroit, MI, USA
| | - Steven Cvetkovski
- Center for Cutaneous Biology and Immunology, Department of Dermatology, Henry Ford Health System, Detroit, MI, USA
- Immunology Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, USA
- Department of Biochemistry, Microbiology and Immunology, Wayne State University School Medicine University, Detroit, MI, USA
| | - Li Zhou
- Center for Cutaneous Biology and Immunology, Department of Dermatology, Henry Ford Health System, Detroit, MI, USA.
- Immunology Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, USA.
- Department of Biochemistry, Microbiology and Immunology, Wayne State University School Medicine University, Detroit, MI, USA.
- Department of Internal Medicine, Henry Ford Health System, Detroit, MI, USA.
| | - Qing-Sheng Mi
- Center for Cutaneous Biology and Immunology, Department of Dermatology, Henry Ford Health System, Detroit, MI, USA.
- Immunology Program, Henry Ford Cancer Institute, Henry Ford Health System, Detroit, MI, USA.
- Department of Biochemistry, Microbiology and Immunology, Wayne State University School Medicine University, Detroit, MI, USA.
- Department of Internal Medicine, Henry Ford Health System, Detroit, MI, USA.
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12
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Abstract
The adaptive immune response is a 500-million-year-old (the "Big Bang" of Immunology) collective set of rearranged and/or selected receptors capable of recognizing soluble and cell surface molecules or shape (B cells, antibody), endogenous and extracellular peptides presented by Major Histocompatibility (MHC) molecules including Class I and Class II (conventional αβ T cells), lipid in the context of MHC-like molecules of the CD1 family (NKT cells), metabolites and B7 family molecules/butyrophilins with stress factors (γδT cells), and stress ligands and absence of MHC molecules (natural killer, NK cells). What makes tumor immunogenic is the recruitment of initially innate immune cells to sites of stress or tissue damage with release of Damage-Associated Molecular Pattern (DAMP) molecules. Subsequent maintenance of a chronic inflammatory state, representing a balance between mature, normalized blood vessels, innate and adaptive immune cells and the tumor provides a complex tumor microenvironment serving as the backdrop for Darwinian selection, tumor elimination, tumor equilibrium, and ultimately tumor escape. Effective immunotherapies are still limited, given the complexities of this highly evolved and selected tumor microenvironment. Cytokine therapies and Immune Checkpoint Blockade (ICB) enable immune effector function and are largely dependent on the shape and size of the B and T cell repertoires (the "adaptome"), now accessible by Next-Generation Sequencing (NGS) and dimer-avoidance multiplexed PCR. How immune effectors access the tumor (infiltrated, immune sequestered, and immune desserts), egress and are organized within the tumor are of contemporary interest and substantial investigation.
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13
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Placek K, Schultze JL, Aschenbrenner AC. Epigenetic reprogramming of immune cells in injury, repair, and resolution. J Clin Invest 2019; 129:2994-3005. [PMID: 31329166 DOI: 10.1172/jci124619] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Immune cells are pivotal in the reaction to injury, whereupon, under ideal conditions, repair and resolution phases restore homeostasis following initial acute inflammation. Immune cell activation and reprogramming require transcriptional changes that can only be initiated if epigenetic alterations occur. Recently, accelerated deciphering of epigenetic mechanisms has extended knowledge of epigenetic regulation, including long-distance chromatin remodeling, DNA methylation, posttranslational histone modifications, and involvement of small and long noncoding RNAs. Epigenetic changes have been linked to aspects of immune cell development, activation, and differentiation. Furthermore, genome-wide epigenetic landscapes have been established for some immune cells, including tissue-resident macrophages, and blood-derived cells including T cells. The epigenetic mechanisms underlying developmental steps from hematopoietic stem cells to fully differentiated immune cells led to development of epigenetic technologies and insights into general rules of epigenetic regulation. Compared with more advanced research areas, epigenetic reprogramming of immune cells in injury remains in its infancy. While the early epigenetic mechanisms supporting activation of the immune response to injury have been studied, less is known about resolution and repair phases and cell type-specific changes. We review prominent recent findings concerning injury-mediated epigenetic reprogramming, particularly in stroke and myocardial infarction. Lastly, we illustrate how single-cell technologies will be crucial to understanding epigenetic reprogramming in the complex sequential processes following injury.
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Affiliation(s)
- Katarzyna Placek
- Immunology and Metabolism, LIMES Institute, University of Bonn, Bonn, Germany
| | - Joachim L Schultze
- Platform for Single Cell Genomics and Epigenomics at the German Center for Neurodegenerative Diseases and the University of Bonn, Bonn, Germany.,Genomics and Immunoregulation, LIMES Institute, University of Bonn, Bonn, Germany
| | - Anna C Aschenbrenner
- Genomics and Immunoregulation, LIMES Institute, University of Bonn, Bonn, Germany
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14
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Mengrelis K, Lau CI, Rowell J, Solanki A, Norris S, Ross S, Ono M, Outram S, Crompton T. Sonic Hedgehog Is a Determinant of γδ T-Cell Differentiation in the Thymus. Front Immunol 2019; 10:1629. [PMID: 31379834 PMCID: PMC6658896 DOI: 10.3389/fimmu.2019.01629] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 07/01/2019] [Indexed: 01/03/2023] Open
Abstract
Here we investigate the function of Hedgehog (Hh) signaling in thymic γδ T-cell maturation and subset differentiation. Analysis of Hh mutants showed that Hh signaling promotes γδ T-cell development in the thymus and influences γδ T-cell effector subset distribution. Hh-mediated transcription in thymic γδ cells increased γδ T-cell number, and promoted their maturation and increased the γδNKT subset, whereas inhibition of Hh-mediated transcription reduced the thymic γδ T-cell population and increased expression of many genes that are normally down-regulated during γδ T-cell maturation. These changes were also evident in spleen, where increased Hh signaling increased γδNKT cells, but reduced CD27-CD44+ and Vγ2+ populations. Systemic in vivo pharmacological Smoothened-inhibition reduced γδ T-cell and γδNKT cells in the thymus, and also reduced splenic γδ T-cell and γδNKT populations, indicating that Hh signaling also influences homeostasis of peripheral γδ T-cell populations. Taken together our data indicate that Sonic Hedgehog is an important determinant of γδ T-cell effector subset differentiation.
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Affiliation(s)
| | - Ching-In Lau
- UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Jasmine Rowell
- UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Anisha Solanki
- UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Sonia Norris
- UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Susan Ross
- UCL Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Masahiro Ono
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Susan Outram
- Department of Natural Sciences, Middlesex University, London, United Kingdom
| | - Tessa Crompton
- UCL Great Ormond Street Institute of Child Health, London, United Kingdom
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15
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Akitsu A, Iwakura Y. Interleukin-17-producing γδ T (γδ17) cells in inflammatory diseases. Immunology 2018; 155:418-426. [PMID: 30133701 PMCID: PMC6231014 DOI: 10.1111/imm.12993] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/08/2018] [Accepted: 08/10/2018] [Indexed: 12/12/2022] Open
Abstract
Interleukin‐17 (IL‐17) is a pro‐inflammatory cytokine and is involved in the development of many diseases. Recent studies have revealed that IL‐17‐producing γδ T cells (γδ17 cells) in addition to IL‐17‐producing CD4+ T cells [T helper type 17 (Th17) cells] are often the main producers of IL‐17 in mouse models of inflammatory diseases. γδ T cells are functionally committed during intra‐thymic differentiation. γδ thymocytes capable of producing IL‐17, which express the transcription factor retinoic‐acid‐receptor‐related orphan receptor γt and the signature cytokine receptor IL‐23R, leave the thymus, and produce IL‐17 rapidly by the stimulation with IL‐1β and IL‐23 in the periphery. Therefore, γδ17 cells play important roles in the early phase of host defence against pathogens and in inflammatory diseases. γδ T cells that can produce IL‐17 are also increased in the skin of patients with psoriasis and in peripheral blood of patients with ankylosing sclerosis. Indeed, the therapy targeting IL‐17 has been approved or is in clinical trials, and proved to be very efficient to treat psoriasis, psoriatic arthritis and ankylosing sclerosis. In this review, we discuss recent knowledge about the pathophysiological function of γδ17 cells in infection and inflammatory diseases and therapeutic advances targeting IL‐17.
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Affiliation(s)
- Aoi Akitsu
- Laboratory of Immunobiology, Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Yoichiro Iwakura
- Centre for Animal Disease Models, Research Institute for Biomedical Sciences, Tokyo University of Science, Chiba, Japan
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16
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Lo Presti E, Caccamo N, Orlando V, Dieli F, Meraviglia S. Activation and selective IL-17 response of human Vγ9Vδ2 T lymphocytes by TLR-activated plasmacytoid dendritic cells. Oncotarget 2018; 7:60896-60905. [PMID: 27590513 PMCID: PMC5308624 DOI: 10.18632/oncotarget.11755] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 08/02/2016] [Indexed: 11/25/2022] Open
Abstract
Vγ9Vδ2 T cells and plasmacytoid dendritic cells (pDCs) are two distinct cell types of innate immunity that participate in early phases of immune response. We investigated whether a close functional relationship exists between these two cell populations using an in vitro co-culture in a human system. pDCs that had been activated by IL-3 and the TLR9 ligand CpG induced substantial activation of Vγ9Vδ2 T cells upon co-culture, which was cell-to-cell contact dependent, as demonstrated in transwell experiments, but that did not involve any of the costimulatory molecules potentially expressed by pDCs or Vγ9V2 T cells, such as ICOS-L, OX40 and CD40L. Activated pDCs selectively induced IL-17, but not IFN-γ, responses of Vγ9Vδ2T cells, which was dominant over the antigen-induced response, and this was associated with the expansion of memory (both central and effector memory) subsets of Vγ9Vδ2 T cells. Overall, our results provide a further piece of information on the complex relationship between these two populations of cells with innate immunity features during inflammatory responses.
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Affiliation(s)
- Elena Lo Presti
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), University of Palermo, Palermo, Italy.,Department of Biopathology and Medical Biotechnologies (DIBIMED), University of Palermo, Palermo, Italy
| | - Nadia Caccamo
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), University of Palermo, Palermo, Italy.,Department of Biopathology and Medical Biotechnologies (DIBIMED), University of Palermo, Palermo, Italy
| | - Valentina Orlando
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), University of Palermo, Palermo, Italy.,Department of Biopathology and Medical Biotechnologies (DIBIMED), University of Palermo, Palermo, Italy
| | - Francesco Dieli
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), University of Palermo, Palermo, Italy.,Department of Biopathology and Medical Biotechnologies (DIBIMED), University of Palermo, Palermo, Italy
| | - Serena Meraviglia
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), University of Palermo, Palermo, Italy.,Department of Biopathology and Medical Biotechnologies (DIBIMED), University of Palermo, Palermo, Italy
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17
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Sun G, Yang S, Cao G, Wang Q, Hao J, Wen Q, Li Z, So KF, Liu Z, Zhou S, Zhao Y, Yang H, Zhou L, Yin Z. γδ T cells provide the early source of IFN-γ to aggravate lesions in spinal cord injury. J Exp Med 2017; 215:521-535. [PMID: 29282251 PMCID: PMC5789408 DOI: 10.1084/jem.20170686] [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: 04/13/2017] [Revised: 08/22/2017] [Accepted: 11/28/2017] [Indexed: 02/05/2023] Open
Abstract
Immune responses and neuroinflammation are critically involved in spinal cord injury (SCI). γδ T cells, a small subset of T cells, regulate the inflammation process in many diseases, yet their function in SCI is still poorly understood. In this paper, we demonstrate that mice deficient in γδ T cells (TCRδ-/- ) showed improved functional recovery after SCI. γδ T cells are detected at the lesion sites within 24 hours after injury and are predominantly of the Vγ4 subtype and express the inflammatory cytokine IFN-γ. Inactivating IFN-γ signaling in macrophages results in a significantly reduced production of proinflammatory cytokines in the cerebrospinal fluid (CSF) of mice with SCIs and improves functional recovery. Furthermore, treatment of SCI with anti-Vγ4 antibodies has a beneficial effect, similar to that obtained with anti-TNF-α. In SCI patients, γδ T cells are detected in the CSF, and most of them are IFN-γ positive. In conclusion, manipulation of γδ T cell functions may be a potential approach for future SCI treatment.
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Affiliation(s)
- Guodong Sun
- The First Affiliated Hospital, Biomedical Translational Research Institute and Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, China
| | - Shuxian Yang
- The First Affiliated Hospital, Biomedical Translational Research Institute and Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, China
| | - Guangchao Cao
- The First Affiliated Hospital, Biomedical Translational Research Institute and Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, China
| | - Qianghua Wang
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, China
| | - Jianlei Hao
- The First Affiliated Hospital, Biomedical Translational Research Institute and Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, China
| | - Qiong Wen
- The First Affiliated Hospital, Biomedical Translational Research Institute and Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, China
| | - Zhizhong Li
- The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Kwok-Fai So
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, China
| | - Zonghua Liu
- The First Affiliated Hospital, Biomedical Translational Research Institute and Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, China.,State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Sufang Zhou
- National Center for International Research of Biological Targeting Diagnosis and Therapy, Guangxi Key Laboratory of Biological Targeting Diagnosis and Therapy Research, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, China
| | - Yongxiang Zhao
- National Center for International Research of Biological Targeting Diagnosis and Therapy, Guangxi Key Laboratory of Biological Targeting Diagnosis and Therapy Research, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Medical University, Nanning, China
| | - Hengwen Yang
- The First Affiliated Hospital, Biomedical Translational Research Institute and Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, China.,State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Libing Zhou
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Ministry of Education CNS Regeneration Collaborative Joint Laboratory, Jinan University, Guangzhou, China .,Co-Innovation Center of Neuroregeneration, Nantong University, Jiangsu, China.,Key Laboratory of Neuroscience, School of Basic Medical Sciences, Institute of Neuroscience, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Zhinan Yin
- The First Affiliated Hospital, Biomedical Translational Research Institute and Guangdong Province Key Laboratory of Molecular Immunology and Antibody Engineering, Jinan University, Guangzhou, China .,State Key Laboratory of Biotherapy, Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu, China
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18
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Anderson G, Vaillancourt C, Maes M, Reiter RJ. Breastfeeding and the gut-brain axis: is there a role for melatonin? Biomol Concepts 2017; 8:185-195. [DOI: 10.1515/bmc-2017-0009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 06/05/2017] [Indexed: 12/12/2022] Open
Abstract
AbstractThe benefits of breastfeeding over formula feed are widely appreciated. However, for many mothers breastfeeding is not possible, highlighting the need for a significant improvement in the contents of formula feed. In this article, the overlooked role of melatonin and the melatonergic pathways in breast milk and in the regulation of wider breast milk components are reviewed. There is a growing appreciation that the benefits of breastfeeding are mediated by its effects in the infant gut, with consequences for the development of the gut-brain axis and the immune system. The melatonergic pathways are intimately associated with highly researched processes in the gut, gut microbiome and gut-brain axis. As the melatonergic pathways are dependent on the levels of serotonin availability as a necessary precursor, decreased melatonin is linked to depression and depression-associated disorders. The association of breastfeeding and the gut-brain axis with a host of medical conditions may be mediated by their regulation of processes that modulate depression susceptibility. The biological underpinnings of depression include increased levels of pro-inflammatory cytokines, oxidative stress, kynurenine pathway activity and dysregulation of the hypothalamic-pituitary adrenal axis, all of which can decrease melatonergic pathway activity. The inclusion of the melatonergic pathways in the biological interactions of breast milk and gut development has significant theoretical and treatment implications, as well as being important to the prevention of a host of infant-, child- and adult-onset medical conditions.
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Affiliation(s)
- George Anderson
- CRC Scotland & London, Eccleston Square, London SWIV 1PG, UK
| | - Cathy Vaillancourt
- INRS-Armand-Frappier Institute and Center for Interdisciplinary Research on Well-Being, Health, Society and Environment (CINBIOSE), Laval, QC, Canada
| | - Michael Maes
- Deakin University, Department of Psychiatry, Geelong, Australia
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19
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Bhat J, Helmuth J, Chitadze G, Kouakanou L, Peters C, Vingron M, Ammerpohl O, Kabelitz D. Stochastics of Cellular Differentiation Explained by Epigenetics: The Case of T-Cell Differentiation and Functional Plasticity. Scand J Immunol 2017; 86:184-195. [PMID: 28799233 DOI: 10.1111/sji.12589] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 08/06/2017] [Indexed: 12/19/2022]
Abstract
Epigenetic marks including histone modifications and DNA methylation are associated with the regulation of gene expression and activity. In addition, an increasing number of non-coding RNAs with regulatory activity on gene expression have been identified. Alongside, technological advancements allow for the analysis of these mechanisms with high resolution up to the single-cell level. For instance, the assay for transposase-accessible chromatin using sequencing (ATAC-seq) simultaneously probes for chromatin accessibility and nucleosome positioning. Thus, it provides information on two levels of epigenetic regulation. Development and differentiation of T cells into functional subset cells including memory T cells are dynamic processes driven by environmental signals. Here, we briefly review the current knowledge of how epigenetic regulation contributes to subset specification, differentiation and memory development in T cells. Specifically, we focus on epigenetic mechanisms differentially active in the two distinct T cell populations expressing αβ or γδ T cell receptors. We also discuss examples of epigenetic alterations of T cells in autoimmune diseases. DNA methylation and histone acetylation are subject to modification by several classes of 'epigenetic modifiers', some of which are in clinical use or in preclinical development. Therefore, we address the impact of some epigenetic modifiers on T-cell activation and differentiation, and discuss possible synergies with T cell-based immunotherapeutic strategies.
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Affiliation(s)
- J Bhat
- Institute of Immunology, University of Kiel and University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - J Helmuth
- Otto-Warburg-Laboratories: Epigenomics, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - G Chitadze
- Institute of Immunology, University of Kiel and University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - L Kouakanou
- Institute of Immunology, University of Kiel and University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - C Peters
- Institute of Immunology, University of Kiel and University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - M Vingron
- Department of Computational Molecular Biology, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - O Ammerpohl
- Institute of Human Genetics, University of Kiel and University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - D Kabelitz
- Institute of Immunology, University of Kiel and University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
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20
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Ageing and latent CMV infection impact on maturation, differentiation and exhaustion profiles of T-cell receptor gammadelta T-cells. Sci Rep 2017; 7:5509. [PMID: 28710491 PMCID: PMC5511140 DOI: 10.1038/s41598-017-05849-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 06/05/2017] [Indexed: 01/07/2023] Open
Abstract
Ageing is a broad cellular process, largely affecting the immune system, especially T-lymphocytes. Additionally to immunosenescence alone, cytomegalovirus (CMV) infection is thought to have major impacts on T-cell subset composition and exhaustion. These impacts have been studied extensively in TCRαβ+ T-cells, with reduction in naive, increase in effector (memory) subsets and shifts in CD4/CD8-ratios, in conjunction with morbidity and mortality in elderly. Effects of both ageing and CMV on the TCRγδ+ T-cell compartment remain largely elusive. In the current study we investigated Vγ- and Vδ-usage, maturation, differentiation and exhaustion marker profiles of both CD4 and CD8 double-negative (DN) and CD8+TCRγδ+ T-cells in 157 individuals, age range 20–95. We observed a progressive decrease in absolute numbers of total TCRγδ+ T-cells in blood, affecting the predominant Vγ9/Vδ2 population. Aged TCRγδ+ T-cells appeared to shift from naive to more (late-stage) effector phenotypes, which appeared more prominent in case of persistent CMV infections. In addition, we found effects of both ageing and CMV on the absolute counts of exhausted TCRγδ+ T-cells. Collectively, our data show a clear impact of ageing and CMV persistence on DN and CD8+TCRγδ+ T-cells, similar to what has been reported in CD8+TCRαβ+ T-cells, indicating that they undergo similar ageing processes.
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21
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Ribeiro ST, Tesio M, Ribot JC, Macintyre E, Barata JT, Silva-Santos B. Casein kinase 2 controls the survival of normal thymic and leukemic γδ T cells via promotion of AKT signaling. Leukemia 2017; 31:1603-1610. [PMID: 27899804 PMCID: PMC5357576 DOI: 10.1038/leu.2016.363] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Revised: 10/12/2016] [Accepted: 11/18/2016] [Indexed: 12/19/2022]
Abstract
The thymus is the major site for normal and leukemic T-cell development. The dissection of the molecular determinants of T-cell survival and differentiation is paramount for the manipulation of healthy or transformed T cells in cancer (immuno)therapy. Casein kinase 2 (CK2) is a serine/threonine protein kinase whose anti-apoptotic functions have been described in various hematological and solid tumors. Here we disclose an unanticipated role of CK2 in healthy human thymocytes that is selective to the γδ T-cell lineage. γδ thymocytes display higher (and T-cell receptor inducible) CK2 activity than their αβ counterparts, and are strikingly sensitive to death upon CK2 inhibition. Mechanistically, we show that CK2 regulates the pro-survival AKT signaling pathway in γδ thymocytes and, importantly, also in γδ T-cell acute lymphoblastic leukemia (T-ALL) cells. When compared with healthy thymocytes or leukemic αβ T cells, γδ T-ALL cells show upregulated CK2 activity, potentiated by CD27 costimulation, and enhanced apoptosis upon CK2 blockade using the chemical inhibitor CX-4945. Critically, this results in inhibition of tumor growth in a xenograft model of human γδ T-ALL. These data identify CK2 as a novel survival determinant of both healthy and leukemic γδ T cells, and may thus greatly impact their therapeutic manipulation.
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Affiliation(s)
- S T Ribeiro
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - M Tesio
- Institut Necker Enfants Malades, Hôpital Necker-Enfants Malades, APHP et Université Paris, Paris, France
| | - J C Ribot
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - E Macintyre
- Institut Necker Enfants Malades, Hôpital Necker-Enfants Malades, APHP et Université Paris, Paris, France
| | - J T Barata
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - B Silva-Santos
- Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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22
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Papotto PH, Ribot JC, Silva-Santos B. IL-17+ γδ T cells as kick-starters of inflammation. Nat Immunol 2017; 18:604-611. [DOI: 10.1038/ni.3726] [Citation(s) in RCA: 167] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Accepted: 03/14/2017] [Indexed: 12/12/2022]
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23
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Lo Presti E, Toia F, Oieni S, Buccheri S, Turdo A, Mangiapane LR, Campisi G, Caputo V, Todaro M, Stassi G, Cordova A, Moschella F, Rinaldi G, Meraviglia S, Dieli F. Squamous Cell Tumors Recruit γδ T Cells Producing either IL17 or IFNγ Depending on the Tumor Stage. Cancer Immunol Res 2017; 5:397-407. [PMID: 28351891 DOI: 10.1158/2326-6066.cir-16-0348] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/06/2017] [Accepted: 03/23/2017] [Indexed: 11/16/2022]
Abstract
The identification of reciprocal interactions between tumor-infiltrating immune cells and the microenviroment may help us understand mechanisms of tumor growth inhibition or progression. We have assessed the frequencies of tumor-infiltrating and circulating γδ T cells and regulatory T cells (Treg) from 47 patients with squamous cell carcinoma (SCC), to determine if they correlated with progression or survival. Vδ1 T cells infiltrated SSC tissue to a greater extent than normal skin, but SCC patients and healthy subjects had similar amounts circulating. However, Vδ2 T cells were present at higher frequencies in circulation than in the tissue of either cancer patients or healthy donors. Tregs were decreased in the peripheral blood of SCC patients, but were significantly increased in the tumor compartment of these patients. Tumor-infiltrating γδ T cells preferentially showed an effector memory phenotype and made either IL17 or IFNγ depending on the tumor stage, whereas circulating γδ T cells of SCC patients preferentially made IFNγ. Different cell types in the tumor microenvironment produced chemokines that could recruit circulating γδ T cells to the tumor site and other cytokines that could reprogram γδ T cells to produce IL17. These findings suggest the possibility that γδ T cells in SCC are recruited from the periphery and their features are then affected by the tumor microenvironment. Elevated frequencies of infiltrating Vδ2 T cells and Tregs differently correlated with early and advanced tumor stages, respectively. Our results provide insights into the functions of tumor-infiltrating γδ T cells and define potential tools for tumor immunotherapy. Cancer Immunol Res; 5(5); 397-407. ©2017 AACR.
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Affiliation(s)
- Elena Lo Presti
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), University of Palermo, Palermo, Italy.,Department of Biopathology and Medical Biotechnologies (DIBIMED), University of Palermo, Palermo, Italy
| | - Francesca Toia
- Department of Surgical, Oncological and Oral Sciences, Plastic and Reconstructive Surgery, University of Palermo, Palermo, Italy
| | - Sebastiano Oieni
- Department of Surgical, Oncological and Oral Sciences, Plastic and Reconstructive Surgery, University of Palermo, Palermo, Italy
| | - Simona Buccheri
- Department for the Treatment and Study of Abdominal Diseases and Transplantation, Mediterranean Institute for Transplantation and Advanced Specialized Therapies (ISMETT), Palermo, Italy
| | - Alice Turdo
- Department of Surgical and Oncological and Oral Sciences, Cellular and Molecular Pathophysiology Laboratory, University of Palermo, Palermo, Italy
| | - Laura Rosa Mangiapane
- Department of Surgical and Oncological and Oral Sciences, Cellular and Molecular Pathophysiology Laboratory, University of Palermo, Palermo, Italy
| | - Giuseppina Campisi
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Valentina Caputo
- Department of Dermatology, University of Palermo, Palermo, Italy
| | - Matilde Todaro
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), University of Palermo, Palermo, Italy.,Department of DIBIMIS, University of Palermo, Palermo, Italy
| | - Giorgio Stassi
- Department of Surgical and Oncological and Oral Sciences, Cellular and Molecular Pathophysiology Laboratory, University of Palermo, Palermo, Italy
| | - Adriana Cordova
- Department of Surgical, Oncological and Oral Sciences, Plastic and Reconstructive Surgery, University of Palermo, Palermo, Italy
| | - Francesco Moschella
- Department of Surgical, Oncological and Oral Sciences, Plastic and Reconstructive Surgery, University of Palermo, Palermo, Italy
| | - Gaetana Rinaldi
- Department of Surgical, Oncological and Oral Sciences, Medical Oncology, University of Palermo, Palermo, Italy
| | - Serena Meraviglia
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), University of Palermo, Palermo, Italy. .,Department of Biopathology and Medical Biotechnologies (DIBIMED), University of Palermo, Palermo, Italy
| | - Francesco Dieli
- Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), University of Palermo, Palermo, Italy.,Department of Biopathology and Medical Biotechnologies (DIBIMED), University of Palermo, Palermo, Italy
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Khairallah C, Déchanet-Merville J, Capone M. γδ T Cell-Mediated Immunity to Cytomegalovirus Infection. Front Immunol 2017; 8:105. [PMID: 28232834 PMCID: PMC5298998 DOI: 10.3389/fimmu.2017.00105] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 01/20/2017] [Indexed: 12/28/2022] Open
Abstract
γδ T lymphocytes are unconventional immune cells, which have both innate- and adaptive-like features allowing them to respond to a wide spectrum of pathogens. For many years, we and others have reported on the role of these cells in the immune response to human cytomegalovirus in transplant patients, pregnant women, neonates, immunodeficient children, and healthy people. Indeed, and as described for CD8+ T cells, CMV infection leaves a specific imprint on the γδ T cell compartment: (i) driving a long-lasting expansion of oligoclonal γδ T cells in the blood of seropositive individuals, (ii) inducing their differentiation into effector/memory cells expressing a TEMRA phenotype, and (iii) enhancing their antiviral effector functions (i.e., cytotoxicity and IFNγ production). Recently, two studies using murine CMV (MCMV) have corroborated and extended these observations. In particular, they have illustrated the ability of adoptively transferred MCMV-induced γδ T cells to protect immune-deficient mice against virus-induced death. In vivo, expansion of γδ T cells is associated with the clearance of CMV infection as well as with reduced cancer occurrence or leukemia relapse risk in kidney transplant patients and allogeneic stem cell recipients, respectively. Taken together, all these studies show that γδ T cells are important immune effectors against CMV and cancer, which are life-threatening diseases affecting transplant recipients. The ability of CMV-induced γδ T cells to act independently of other immune cells opens the door to the development of novel cellular immunotherapies that could be particularly beneficial for immunocompromised transplant recipients.
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Affiliation(s)
| | | | - Myriam Capone
- Immunoconcept, CNRS UMR 5164, Bordeaux University, Bordeaux, France
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Buus TB, Geisler C, Lauritsen JPH. The major diversification of Vγ1.1 + and Vγ2 + thymocytes in mice occurs after commitment to the γδ T-cell lineage. Eur J Immunol 2016; 46:2363-2375. [PMID: 27418188 DOI: 10.1002/eji.201646407] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 05/29/2016] [Accepted: 07/11/2016] [Indexed: 01/12/2023]
Abstract
γδ T cells are a heterogeneous cell population with different subsets playing specialized and often opposing roles during immune responses. A key question is whether γδ thymocytes are determined for their effector function already at an early stage, before their commitment to the γδ T-cell lineage, or are instructed during their later development. Here, we show that the adult Vγ1.1+ and Vγ2+ γδ T-cell subsets both go through a CD73+ CD24+ development stage, and that the gene regulation involved in lineage commitment is shared by both subsets. We demonstrate that the major subset diversification first occurs after the cells have committed to the γδ T-cell lineage, strongly supporting an instructive model for functional programming of γδ T cells. In conclusion, we show that the two major adult γδ T-cell subsets in mice develop through a shared pathway utilizing similar cellular machinery and that they diverge after the CD24+ CD73+ maturity stage.
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Affiliation(s)
- Terkild B Buus
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Carsten Geisler
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens Peter H Lauritsen
- Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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TCR signal strength controls thymic differentiation of discrete proinflammatory γδ T cell subsets. Nat Immunol 2016; 17:721-727. [PMID: 27043412 PMCID: PMC4875770 DOI: 10.1038/ni.3424] [Citation(s) in RCA: 91] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 03/01/2016] [Indexed: 01/02/2023]
Abstract
The murine thymus produces discrete γδ T cell subsets making either interferon-γ (IFN--γ) or interleukin 17 (IL-17), but the role of the TCR in this developmental process remains controversial. Here we show that mice haploinsufficient for both Cd3g and Cd3d (CD3DH, for CD3 double haploinsufficient) have reduced TCR expression and signaling strength selectively on γδ T cells. CD3DH mice had normal numbers and phenotype of αβ thymocyte subsets but impaired differentiation of fetal Vγ6+ (but not Vγ4+) IL-17-producing γδ T cells and a marked depletion of IFN-γ-producing CD122+ NK1.1+ γδ T cells throughout ontogeny. Adult CD3DH mice showed reduced peripheral IFN-γ+ γδ T cells and were resistant to experimental cerebral malaria. Thus, TCR signal strength within specific thymic developmental windows is a major determinant of the generation of proinflammatory γδ T cell subsets and their impact on pathophysiology.
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Lorè NI, Bragonzi A, Cigana C. The IL-17A/IL-17RA axis in pulmonary defence and immunopathology. Cytokine Growth Factor Rev 2016; 30:19-27. [PMID: 27033174 DOI: 10.1016/j.cytogfr.2016.03.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/17/2016] [Accepted: 03/17/2016] [Indexed: 01/11/2023]
Abstract
The interleukin (IL)-17A/IL-17 receptor A (IL-17RA) axis is emerging as a key player in host defence. Several studies have demonstrated that IL-17A-mediated responses play a critical role in both acute and chronic inflammation induced by infectious agents, environmental stimuli and genetic diseases in the airways. In this regard, it is becoming evident that IL-17A/IL-17RA signalling may have a protective and beneficial impact on health, but that it can also result in detrimental outcomes. On one hand, the IL-17A/IL-17RA axis can contribute to the elimination of noxious stimuli and to the resolution of acute inflammatory processes; on the other hand, it can exacerbate immunopathological responses, contributing to the development and progression of chronic respiratory illnesses. In addition, cellular and molecular signatures underlying IL-17A/IL-17RA signalling have been increasingly identified, although further studies are needed to clarify such complex responses. Here, we discuss the latest discoveries on the role of the IL-17A/IL-17RA axis in driving host pulmonary defence and immunopathology.
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Affiliation(s)
- Nicola Ivan Lorè
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milano, Italy.
| | - Alessandra Bragonzi
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Cristina Cigana
- Infections and Cystic Fibrosis Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milano, Italy
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