1
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Liu W, Zhang JH, Gao L, Xiao JH. Correlation between the dynamic changes of γδT cells, Th17 cells, CD4 +CD25 + regulatory T cells in peripheral blood and pharmacological interventions against bleomycin-induced pulmonary fibrosis progression in mice. Exp Cell Res 2024; 439:114098. [PMID: 38796136 DOI: 10.1016/j.yexcr.2024.114098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 05/16/2024] [Accepted: 05/21/2024] [Indexed: 05/28/2024]
Abstract
The involvement of γδT cells, Th17 cells, and CD4+CD25+ regulatory T cells (Tregs) is crucial in the progression of pulmonary fibrosis (PF), particularly in maintaining immune tolerance and homeostasis. However, the dynamics of these cells in relation to PF progression, especially under pharmacological interventions, remains poorly understood. This study aims to unravel the interplay between the dynamic changes of these cells and the effect of pharmacological agents in a mouse model of PF induced by intratracheal instillation of bleomycin. We analyzed changes in lung histology, lung index, hydroxyproline levels, and the proportions of γδT cells, Th17 cells, and Tregs on the 3rd, 14th, and 28th days following treatment with Neferine, Isoliensinine, Pirfenidone, and Prednisolone. Our results demonstrate that these drugs can partially or dynamically reverse weight loss, decrease lung index and hydroxyproline levels, and ameliorate lung histopathological damage. Additionally, they significantly modulated the abnormal changes in γδT, Th17, and Treg cell proportions. Notably, on day 3, the proportion of γδT cells increased in the Neferine and Prednisolone groups but decreased in the Isoliensinine and Pirfenidone groups, while the proportion of Th17 cells decreased across all treated groups. On day 14, the Neferine group showed an increase in all three cell types, whereas the Pirfenidone group exhibited a decrease. In the Isoliensinine group, γδT and Th17 cells increased, and in the Prednisolone group, only Tregs increased. By day 28, an increase in Th17 cell proportion was observed in all treatment groups, with a decrease in γδT cells noted in the Neferine group. These shifts in cell proportions are consistent with the pathogenesis changes induced by these anti-PF drugs, suggesting a correlation between cellular dynamics and pharmacological interventions in PF progression. Our findings imply potential strategies for assessing the efficacy and timing of anti-PF treatments based on these cellular changes.
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Affiliation(s)
- Wei Liu
- Center for Stem Cell Research and Application, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jia-Hua Zhang
- Center for Stem Cell Research and Application, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Lu Gao
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jun-Hua Xiao
- Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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2
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Watanabe M, Matsui A, Awata N, Nagafuchi A, Kawazoe M, Harada Y, Ito M. Differences in the characteristics and functions of brain and spinal cord regulatory T cells. J Neuroinflammation 2024; 21:146. [PMID: 38824594 PMCID: PMC11143704 DOI: 10.1186/s12974-024-03144-1] [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: 02/11/2024] [Accepted: 05/27/2024] [Indexed: 06/03/2024] Open
Abstract
T cells play an important role in the acquired immune response, with regulatory T cells (Tregs) serving as key players in immune tolerance. Tregs are found in nonlymphoid and damaged tissues and are referred to as "tissue Tregs". They have tissue-specific characteristics and contribute to immunomodulation, homeostasis, and tissue repair through interactions with tissue cells. However, important determinants of Treg tissue specificity, such as antigen specificity, tissue environment, and pathology, remain unclear. In this study, we analyzed Tregs in the central nervous system of mice with ischemic stroke and experimental autoimmune encephalomyelitis (EAE), a mouse model of multiple sclerosis. The gene expression pattern of brain Tregs in the EAE model was more similar to that of ischemic stroke Tregs in the brain than to that of spinal cord Tregs. In addition, most T-cell receptors (TCRs) with high clonality were present in both the brain and spinal cord. Furthermore, Gata3+ and Rorc+ Tregs expressed TCRs recognizing MOG in the spinal cord, suggesting a tissue environment conducive to Rorc expression. Tissue-specific chemokine/chemokine receptor interactions in the spinal cord and brain influenced Treg localization. Finally, spinal cord- or brain-derived Tregs had greater anti-inflammatory capacities in EAE mice, respectively. Taken together, these findings suggest that the tissue environment, rather than pathogenesis or antigen specificity, is the primary determinant of the tissue-specific properties of Tregs. These findings may contribute to the development of novel therapies to suppress inflammation through tissue-specific Treg regulation.
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Affiliation(s)
- Mahiro Watanabe
- Division of Allergy and Immunology, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Ako Matsui
- Division of Allergy and Immunology, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Natsumi Awata
- Division of Allergy and Immunology, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Ayame Nagafuchi
- Division of Allergy and Immunology, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Mio Kawazoe
- Division of Allergy and Immunology, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Yoshihiro Harada
- Division of Allergy and Immunology, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Minako Ito
- Division of Allergy and Immunology, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan.
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3
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Liston A, Pasciuto E, Fitzgerald DC, Yshii L. Brain regulatory T cells. Nat Rev Immunol 2024; 24:326-337. [PMID: 38040953 DOI: 10.1038/s41577-023-00960-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2023] [Indexed: 12/03/2023]
Abstract
The brain, long thought to be isolated from the peripheral immune system, is increasingly recognized to be integrated into a systemic immunological network. These conduits of immune-brain interaction and immunosurveillance processes necessitate the presence of complementary immunoregulatory mechanisms, of which brain regulatory T cells (Treg cells) are likely a key facet. Treg cells represent a dynamic population in the brain, with continual influx, specialization to a brain-residency phenotype and relatively rapid displacement by newly incoming cells. In addition to their functions in suppressing adaptive immunity, an emerging view is that Treg cells in the brain dampen down glial reactivity in response to a range of neurological insults, and directly assist in multiple regenerative and reparative processes during tissue pathology. The utility and malleability of the brain Treg cell population make it an attractive therapeutic target across the full spectrum of neurological conditions, ranging from neuroinflammatory to neurodegenerative and even psychiatric diseases. Therapeutic modalities currently under intense development include Treg cell therapy, IL-2 therapy to boost Treg cell numbers and multiple innovative approaches to couple these therapeutics to brain delivery mechanisms for enhanced potency. Here we review the state of the art of brain Treg cell knowledge together with the potential avenues for future integration into medical practice.
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Affiliation(s)
- Adrian Liston
- Department of Pathology, University of Cambridge, Cambridge, UK.
| | - Emanuela Pasciuto
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium.
- Center for Molecular Neurology, VIB, Antwerp, Belgium.
| | - Denise C Fitzgerald
- School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK.
| | - Lidia Yshii
- Department of Neurosciences, KU Leuven, Leuven, Belgium.
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4
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Hawiger D. Emerging T cell immunoregulatory mechanisms in multiple sclerosis and Alzheimer's disease. Front Aging Neurosci 2024; 16:1350240. [PMID: 38435400 PMCID: PMC10904586 DOI: 10.3389/fnagi.2024.1350240] [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: 12/05/2023] [Accepted: 01/31/2024] [Indexed: 03/05/2024] Open
Abstract
Multiple sclerosis (MS) and Alzheimer's disease (AD) are neuroinflammatory and neurodegenerative diseases with considerable socioeconomic impacts but without definitive treatments. AD and MS have multifactorial pathogenesis resulting in complex cognitive and neurologic symptoms and growing evidence also indicates key functions of specific immune cells. Whereas relevant processes dependent on T cells have been elucidated in both AD and MS, mechanisms that can control such immune responses still remain elusive. Here, a brief overview of select recent findings clarifying immunomodulatory mechanisms specifically induced by tolerogenic dendritic cells to limit the activation and functions of neurodegenerative T cells is presented. These insights could become a foundation for new cutting-edge research as well as therapeutic strategies.
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Affiliation(s)
- Daniel Hawiger
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, United States
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5
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Sarkar SK, Willson AML, Jordan MA. The Plasticity of Immune Cell Response Complicates Dissecting the Underlying Pathology of Multiple Sclerosis. J Immunol Res 2024; 2024:5383099. [PMID: 38213874 PMCID: PMC10783990 DOI: 10.1155/2024/5383099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 12/05/2023] [Accepted: 12/11/2023] [Indexed: 01/13/2024] Open
Abstract
Multiple sclerosis (MS) is a neurodegenerative autoimmune disease characterized by the destruction of the myelin sheath of the neuronal axon in the central nervous system. Many risk factors, including environmental, epigenetic, genetic, and lifestyle factors, are responsible for the development of MS. It has long been thought that only adaptive immune cells, especially autoreactive T cells, are responsible for the pathophysiology; however, recent evidence has indicated that innate immune cells are also highly involved in disease initiation and progression. Here, we compile the available data regarding the role immune cells play in MS, drawn from both human and animal research. While T and B lymphocytes, chiefly enhance MS pathology, regulatory T cells (Tregs) may serve a more protective role, as can B cells, depending on context and location. Cells chiefly involved in innate immunity, including macrophages, microglia, astrocytes, dendritic cells, natural killer (NK) cells, eosinophils, and mast cells, play varied roles. In addition, there is evidence regarding the involvement of innate-like immune cells, such as γδ T cells, NKT cells, MAIT cells, and innate-like B cells as crucial contributors to MS pathophysiology. It is unclear which of these cell subsets are involved in the onset or progression of disease or in protective mechanisms due to their plastic nature, which can change their properties and functions depending on microenvironmental exposure and the response of neural networks in damage control. This highlights the need for a multipronged approach, combining stringently designed clinical data with carefully controlled in vitro and in vivo research findings, to identify the underlying mechanisms so that more effective therapeutics can be developed.
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Affiliation(s)
- Sujan Kumar Sarkar
- Department of Anatomy, Histology and Physiology, Faculty of Animal Science and Veterinary Medicine, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh
| | - Annie M. L. Willson
- Biomedical Sciences and Molecular Biology, CPHMVS, James Cook University, Townsville, Queensland 4811, Australia
| | - Margaret A. Jordan
- Biomedical Sciences and Molecular Biology, CPHMVS, James Cook University, Townsville, Queensland 4811, Australia
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6
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Etebar F, Hosseini SH, Borhani Zarandi M, Moghadasi AN, Jalousian F. The immunomodulatory effects of the C-type lectin protein of Toxocara canis on experimental autoimmune encephalomyelitis. Parasite Immunol 2023; 45:e13010. [PMID: 37718988 DOI: 10.1111/pim.13010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 08/07/2023] [Accepted: 08/21/2023] [Indexed: 09/19/2023]
Abstract
Toxocara canis is a global zoonosis infection that can cause chronic and long-term toxocariasis in their paratenic host. The excretory-secretory (ES) products of T. canis larvae are considered to be responsible for the Th2 polarization and regulatory immune responses in toxocariasis. The C-type lectin family is one of the most prominent components of ES products of T. canis infective larvae. This study aimed to investigate the ameliorative effect of a T. canis C-type lectin recombinant protein (rCTL), on experimental autoimmune encephalomyelitis (EAE) which is a T-cell-mediated autoimmune disease of the central nervous system. C57BL/6 mice were subcutaneously treated with 30 μg rCTL, three times at an interval of 1 week. EAE was induced by myelin oligodendrocyte glycoprotein 35-55 peptide (MOG35-55 peptide) immunization, and weight and clinical scores were evaluated. Real time polymerase chain reaction was performed to evaluate the expression levels of T-bet, Gata3, and Foxp3 in splenocytes. In addition, the levels of interleukin 4, interferon gamma, and tumour growth factor-β (TGF-β) were quantified by enzyme-linked immunosorbent assay in splenocyte culture supernatants. The results indicated that the rCTL decreased clinical disability scores and delayed the onset of EAE. Furthermore, the data showed that rCTL treatment modulated the immune response, which was associated with upregulation of the mRNA expression of the Foxp3 gene and higher production of TGF-β in rCTL-treated mice. This study demonstrated that rCTL might be a potential agent to ameliorate EAE symptoms by stimulating anti-inflammatory responses.
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Affiliation(s)
- Fazeleh Etebar
- Faculty of Health, Centre for Immunology and Infection Control, Queensland University of Technology, Kelvin Grove, Queensland, Australia
- Department of Parasitology, Faculty of Veterinary Medicine, Tehran University, Tehran, Iran
| | - Seyed Hossein Hosseini
- Department of Parasitology, Faculty of Veterinary Medicine, Tehran University, Tehran, Iran
- Iranian Museum of Parasitology, Faculty of Veterinary Medicine, Tehran University, Tehran, Iran
| | - Mehdi Borhani Zarandi
- State Key Laboratory for Zoonotic Diseases, Key Laboratory of Zoonosis Research, Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, China
| | - Abdorreza Naser Moghadasi
- Multiple Sclerosis Research Center, Neuroscience institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Fateme Jalousian
- Department of Parasitology, Faculty of Veterinary Medicine, Tehran University, Tehran, Iran
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7
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Shen P, Rother M, Stervbo U, Lampropoulou V, Calderon-Gomez E, Roch T, Hilgenberg E, Ries S, Kühl AA, Jouneau L, Boudinot P, Fillatreau S. Toll-like receptors control the accumulation of neutrophils in lymph nodes that expand CD4 + T cells during experimental autoimmune encephalomyelitis. Eur J Immunol 2023; 53:e2250059. [PMID: 36458588 PMCID: PMC10107244 DOI: 10.1002/eji.202250059] [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: 06/21/2022] [Revised: 11/10/2022] [Accepted: 11/30/2022] [Indexed: 12/04/2022]
Abstract
Toll-like receptors (TLR) control the activation of dendritic cells that prime CD4+ T cells in draining lymph nodes, where these T cells then undergo massive clonal expansion. The mechanisms controlling this clonal T cell expansion are poorly defined. Using the CD4+ T cell-mediated disease experimental autoimmune encephalomyelitis (EAE), we show here that this process is markedly suppressed when TLR9 signaling is increased, without noticeably affecting the transcriptome of primed T cells, indicating a purely quantitative effect on CD4+ T cell expansion. Addressing the underpinning mechanisms revealed that CD4+ T cell expansion was preceded and depended on the accumulation of neutrophils in lymph nodes a few days after immunization. Underlying the importance of this immune regulation pathway, blocking neutrophil accumulation in lymph nodes by treating mice with a TLR9 agonist inhibited EAE progression in mice with defects in regulatory T cells or regulatory B cells, which otherwise developed a severe chronic disease. Collectively, this study demonstrates the key role of neutrophils in the quantitative regulation of antigen-specific CD4+ T cell expansion in lymph nodes, and the counter-regulatory role of TLR signaling in this process.
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Affiliation(s)
- Ping Shen
- Deutsches Rheumaforschungszentrum Berlin, a Leibniz Institute, Germany.,Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 10117, Berlin, Germany.,Stem Cell and Biotherapy Engineering Research Center of Henan Province, College of Life Sciences and Technology, Xinxiang Medical University, Xinxiang, 453003, China
| | - Madlen Rother
- Deutsches Rheumaforschungszentrum Berlin, a Leibniz Institute, Germany
| | - Ulrik Stervbo
- Deutsches Rheumaforschungszentrum Berlin, a Leibniz Institute, Germany
| | - Vicky Lampropoulou
- Deutsches Rheumaforschungszentrum Berlin, a Leibniz Institute, Germany.,Department of Microbiology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Toralf Roch
- Deutsches Rheumaforschungszentrum Berlin, a Leibniz Institute, Germany
| | - Ellen Hilgenberg
- Deutsches Rheumaforschungszentrum Berlin, a Leibniz Institute, Germany
| | - Steffi Ries
- Deutsches Rheumaforschungszentrum Berlin, a Leibniz Institute, Germany
| | - Anja A Kühl
- Institute of Pathology/RCIS, Charité, Campus Benjamin Franklin, 12203, Berlin, Germany
| | - Luc Jouneau
- Université Paris-Saclay, INRAE, UVSQ, VIM, Jouy-en-Josas, 78350, France
| | - Pierre Boudinot
- Université Paris-Saclay, INRAE, UVSQ, VIM, Jouy-en-Josas, 78350, France
| | - Simon Fillatreau
- Deutsches Rheumaforschungszentrum Berlin, a Leibniz Institute, Germany.,Université Paris Cité, INSERM UMR-S1151, CNRS UMR-S8253, Institut Necker Enfants Malades, Paris, F-75015, France.,Service Immunologie Biologique, AP-HP, Hôpital Necker-Enfants Malades, Paris, F-75015, France
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8
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Crockett AM, Kebir H, Benallegue N, Adelman P, Gur RE, Sullivan K, Anderson SA, Alvarez JI. Immune status of the murine 22q11.2 deletion syndrome model. Eur J Immunol 2023; 53:e2249840. [PMID: 36337041 DOI: 10.1002/eji.202249840] [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: 01/31/2022] [Revised: 09/15/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022]
Abstract
Mice modeling the hemizygous deletion of chromosome 22q11.2 (22qMc) have been utilized to address various clinical phenotypes associated with the disease, including cardiac malformations, altered neural circuitry, and behavioral deficits. Yet, the status of the T cell compartment, an important clinical concern among 22q11.2 deletion syndrome (22qDS) patients, has not been addressed. While infancy and early childhood in 22qDS are associated with deficient T cell numbers and thymic hypoplasia, which can be severe in a small subset of patients, studies suggest normalization of the T cell counts by adulthood. We found that adult 22qMc do not exhibit thymic hypoplasia or altered thymic T cell development. Our findings that immune cell counts and inflammatory T cell activation are unaffected in 22qMc lend support to the hypothesis that human 22qDS immunodeficiencies are secondary to thymic hypoplasia, rather than intrinsic effects due to the deletion. Furthermore, the 22q11.2 deletion does not impact the differentiation capacity of T cells, nor their activity and response during inflammatory activation. Thus, 22qMc reflects the T cell compartment in adult 22qDS patients, and our findings suggest that 22qMc may serve as a novel model to address experimental and translational aspects of immunity in 22qDS.
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Affiliation(s)
- Alexis M Crockett
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Hania Kebir
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Naïl Benallegue
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Inserm, Université de Nantes, CHU Nantes, Centre de Recherche en Transplantation et Immunologie, UMR 1064, ITUN, Nantes, F-44000, France
| | - Philippa Adelman
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Raquel E Gur
- Department of Child and Adolescent Psychiatry, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kathleen Sullivan
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Stewart A Anderson
- Department of Child and Adolescent Psychiatry, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.,Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jorge I Alvarez
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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9
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Rao X, Hua F, Zhang L, Lin Y, Fang P, Chen S, Ying J, Wang X. Dual roles of interleukin-33 in cognitive function by regulating central nervous system inflammation. J Transl Med 2022; 20:369. [PMID: 35974336 PMCID: PMC9382782 DOI: 10.1186/s12967-022-03570-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 08/04/2022] [Indexed: 12/13/2022] Open
Abstract
With the advent of an aging society, the incidence of dementia is increasing, resulting in a vast burden on society. It is increasingly acknowledged that neuroinflammation is implicated in various neurological diseases with cognitive dysfunction such as Alzheimer’s disease, multiple sclerosis, ischemic stroke, traumatic brain injury, and central nervous system infections. As an important neuroinflammatory factor, interleukin-33 (IL-33) is highly expressed in various tissues and cells in the mammalian brain, where it plays a role in the pathogenesis of a number of central nervous system conditions. Reams of previous studies have shown that IL-33 has both pro- and anti-inflammatory effects, playing dual roles in the progression of diseases linked to cognitive impairment by regulating the activation and polarization of immune cells, apoptosis, and synaptic plasticity. This article will summarize the current findings on the effects IL-33 exerts on cognitive function by regulating neuroinflammation, and attempt to explore possible therapeutic strategies for cognitive disorders based on the adverse and protective mechanisms of IL-33.
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Affiliation(s)
- Xiuqin Rao
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.,Key Laboratory of Anesthesiology of Jiangxi Province, 1# Minde Road, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Fuzhou Hua
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.,Key Laboratory of Anesthesiology of Jiangxi Province, 1# Minde Road, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Lieliang Zhang
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.,Key Laboratory of Anesthesiology of Jiangxi Province, 1# Minde Road, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Yue Lin
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.,Key Laboratory of Anesthesiology of Jiangxi Province, 1# Minde Road, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Pu Fang
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Shoulin Chen
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.,Key Laboratory of Anesthesiology of Jiangxi Province, 1# Minde Road, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Jun Ying
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.,Key Laboratory of Anesthesiology of Jiangxi Province, 1# Minde Road, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Xifeng Wang
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.
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10
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Hwang D, Boehm A, Rostami A, Zhang GX, Ciric B. Oral D-mannose treatment suppresses experimental autoimmune encephalomyelitis via induction of regulatory T cells. J Neuroimmunol 2022; 362:577778. [PMID: 34814011 PMCID: PMC8724449 DOI: 10.1016/j.jneuroim.2021.577778] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/12/2021] [Accepted: 11/15/2021] [Indexed: 01/17/2023]
Abstract
D-mannose (D-m) is a glucose epimer found in natural products, especially fruits. In mouse models of diabetes and airway inflammation, D-m supplementation via drinking water attenuated pathology by modifying cellular energy metabolism, leading to the activation of latent transforming growth factor beta (TGF-β), which in turn induced T regulatory cells (Tregs). Given that Tregs are important in controlling neuroinflammation in experimental autoimmune encephalomyelitis (EAE) and likely in multiple sclerosis (MS), we hypothesized that D-m could also suppress EAE. We found that D-m delayed disease onset and reduced disease severity in two models of EAE. Importantly, D-m treatment prevented relapses in a relapsing-remitting model of EAE, which mimics the most common clinical manifestation of MS. EAE suppression was accompanied by increased frequency of CD4+FoxP3+ Tregs in the central nervous system, suggesting that EAE suppression resulted from Treg cell induction by D-m. These findings suggest that D-m has the potential to be a safe and low-cost complementary therapy for MS.
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Affiliation(s)
- Daniel Hwang
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA
| | - Alexandra Boehm
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA
| | - Abdolmohamad Rostami
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA
| | - Guang-Xian Zhang
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA
| | - Bogoljub Ciric
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA.,Corresponding author at: Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, 900 Walnut Street, Suite 300, Philadelphia, PA, 19107.
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11
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Wang H, Wang Z, Wu Q, Yuan Y, Cao W, Zhang X. Regulatory T cells in ischemic stroke. CNS Neurosci Ther 2021; 27:643-651. [PMID: 33470530 PMCID: PMC8111493 DOI: 10.1111/cns.13611] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 12/28/2020] [Accepted: 12/30/2020] [Indexed: 12/11/2022] Open
Abstract
The pathophysiological mechanisms of neuroinflammation, angiogenesis, and neuroplasticity are currently the hotspots of researches in ischemic stroke. Regulatory T cells (Tregs), a subset of T cells that control inflammatory and immune responses in the body, are closely related to the pathogenesis of ischemic stroke. They participate in the inflammatory response and neuroplasticity process of ischemic stroke by various mechanisms, such as secretion of anti‐inflammatory factors, inhibition of pro‐inflammatory factors, induction of cell lysis, production of the factors that promote neural regeneration, and modulation of microglial and macrophage polarization. However, it remains unclear whether Tregs play a beneficial or deleterious role in ischemic stroke and the effect of Tregs in different stages of ischemic stroke. Here, we discuss the dynamic changes of Tregs at various stages of experimental and clinical stroke, the potential mechanisms under Tregs in regulating stroke and the preclinical studies of Tregs‐related treatments, in order to provide a reference for clinical treatment.
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Affiliation(s)
- Huan Wang
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, PR China
| | - Zhao Wang
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, PR China
| | - Qianqian Wu
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, PR China
| | - Yujia Yuan
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, PR China
| | - Wen Cao
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, PR China
| | - Xiangjian Zhang
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, PR China.,Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease, Shijiazhuang, Hebei, PR China.,Hebei Vascular Homeostasis Key Laboratory, Shijiazhuang, Hebei, PR China
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12
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Shahi SK, Jensen SN, Murra AC, Tang N, Guo H, Gibson-Corley KN, Zhang J, Karandikar NJ, Murray JA, Mangalam AK. Human Commensal Prevotella histicola Ameliorates Disease as Effectively as Interferon-Beta in the Experimental Autoimmune Encephalomyelitis. Front Immunol 2020; 11:578648. [PMID: 33362764 PMCID: PMC7759500 DOI: 10.3389/fimmu.2020.578648] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 11/04/2020] [Indexed: 12/13/2022] Open
Abstract
Gut microbiota has emerged as an important environmental factor in the pathobiology of multiple sclerosis (MS), an inflammatory demyelinating disease of the central nervous system (CNS). Both genetic and environmental factors have been shown to play an important role in MS. Among genetic factors, the human leukocyte antigen (HLA) class II allele such as HLA-DR2, DR3, DR4, DQ6, and DQ8 show the association with the MS. We have previously used transgenic mice expressing MS susceptible HLA class II allele such as HLA-DR2, DR3, DQ6, and DQ8 to validate significance of HLA alleles in MS. Although environmental factors contribute to 2/3 of MS risk, less is known about them. Gut microbiota is emerging as an imporatnt environmental factor in MS pathogenesis. We and others have shown that MS patients have distinct gut microbiota compared to healthy control (HC) with a lower abundance of Prevotella. Additionally, the abundance of Prevotella increased in patients receiving disease-modifying therapies (DMTs) such as Copaxone and/or Interferon-beta (IFNβ). We have previously identified a specific strain of Prevotella (Prevotella histicola), which can suppress experimental autoimmune encephalomyelitis (EAE) disease in HLA-DR3.DQ8 transgenic mice. Since Interferon-β-1b [IFNβ (Betaseron)] is a major DMTs used in MS patients, we hypothesized that treatment with the combination of P. histicola and IFNβ would have an additive effect on the disease suppression. We observed that treatment with P. histicola suppressed disease as effectively as IFNβ. Surprisingly, the combination of P. histicola and IFNβ was not more effective than either treatment alone. P. histicola alone or in combination with IFNβ increased the frequency and number of CD4+FoxP3+ regulatory T cells in the gut-associated lymphoid tissue (GALT). Treatment with P. histicola alone, IFNβ alone, and in the combination decreased frequency of pro-inflammatory IFN-γ and IL17-producing CD4+ T cells in the CNS. Additionally, P. histicola alone or IFNβ alone or the combination treatments decreased CNS pathology, characterized by reduced microglia and astrocytic activation. In conclusion, our study indicates that the human gut commensal P. histicola can suppress disease as effectively as commonly used MS drug IFNβ and may provide an alternative treatment option for MS patients.
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MESH Headings
- Animals
- Anti-Inflammatory Agents/pharmacology
- Astrocytes/drug effects
- Astrocytes/immunology
- Astrocytes/metabolism
- Astrocytes/microbiology
- Central Nervous System/drug effects
- Central Nervous System/immunology
- Central Nervous System/metabolism
- Central Nervous System/microbiology
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/metabolism
- Encephalomyelitis, Autoimmune, Experimental/microbiology
- Encephalomyelitis, Autoimmune, Experimental/prevention & control
- Female
- Forkhead Transcription Factors/metabolism
- Gastrointestinal Microbiome
- HLA-DQ beta-Chains/genetics
- HLA-DRB1 Chains/genetics
- Humans
- Interferon-beta/pharmacology
- Interferon-gamma/metabolism
- Interleukin-17/metabolism
- Intestines/microbiology
- Lymphoid Tissue/drug effects
- Lymphoid Tissue/immunology
- Lymphoid Tissue/metabolism
- Lymphoid Tissue/microbiology
- Male
- Mice, Transgenic
- Microglia/drug effects
- Microglia/immunology
- Microglia/metabolism
- Microglia/microbiology
- Prevotella/physiology
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- T-Lymphocytes, Regulatory/microbiology
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Affiliation(s)
- Shailesh K. Shahi
- Department of Pathology, University of Iowa, Iowa City, IA, United States
| | - Samantha N. Jensen
- Department of Pathology, University of Iowa, Iowa City, IA, United States
- Graduate Program in Immunology, University of Iowa, Iowa City, IA, United States
| | - Alexandra C. Murra
- Department of Pathology, University of Iowa, Iowa City, IA, United States
| | - Na Tang
- Department of Pathology, University of Iowa, Iowa City, IA, United States
| | - Hui Guo
- Department of Pathology, University of Iowa, Iowa City, IA, United States
| | | | - Jian Zhang
- Department of Pathology, University of Iowa, Iowa City, IA, United States
| | - Nitin J. Karandikar
- Department of Pathology, University of Iowa, Iowa City, IA, United States
- Graduate Program in Immunology, University of Iowa, Iowa City, IA, United States
- Graduate Program in Molecular Medicine, University of Iowa, Iowa City, IA, United States
| | - Joseph A. Murray
- Department of Immunology, Mayo Clinic, Rochester, MN, United States
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States
| | - Ashutosh K. Mangalam
- Department of Pathology, University of Iowa, Iowa City, IA, United States
- Graduate Program in Immunology, University of Iowa, Iowa City, IA, United States
- Graduate Program in Molecular Medicine, University of Iowa, Iowa City, IA, United States
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13
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Burgaletto C, Munafò A, Di Benedetto G, De Francisci C, Caraci F, Di Mauro R, Bucolo C, Bernardini R, Cantarella G. The immune system on the TRAIL of Alzheimer's disease. J Neuroinflammation 2020; 17:298. [PMID: 33050925 PMCID: PMC7556967 DOI: 10.1186/s12974-020-01968-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 09/28/2020] [Indexed: 12/11/2022] Open
Abstract
Alzheimer's disease (AD) is the most common form of dementia, characterized by progressive degeneration and loss of neurons in specific regions of the central nervous system. Chronic activation of the immune cells resident in the brain, peripheral immune cell trafficking across the blood-brain barrier, and release of inflammatory and neurotoxic factors, appear critical contributors of the neuroinflammatory response that drives the progression of neurodegenerative processes in AD. As the neuro-immune network is impaired in course of AD, this review is aimed to point out the essential supportive role of innate and adaptive immune response either in normal brain as well as in brain recovery from injury. Since a fine-tuning of the immune response appears crucial to ensure proper nervous system functioning, we focused on the role of the TNF superfamily member, TNF-related apoptosis-inducing ligand (TRAIL), which modulates both the innate and adaptive immune response in the pathogenesis of several immunological disorders and, in particular, in AD-related neuroinflammation. We here summarized mounting evidence of potential involvement of TRAIL signaling in AD pathogenesis, with the aim to provide clearer insights about potential novel therapeutic approaches in AD.
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Affiliation(s)
- Chiara Burgaletto
- Department of Biomedical and Biotechnological Sciences (BIOMETEC), Section of Pharmacology, University of Catania, Via Santa Sofia 97, Catania, Italy
| | - Antonio Munafò
- Department of Biomedical and Biotechnological Sciences (BIOMETEC), Section of Pharmacology, University of Catania, Via Santa Sofia 97, Catania, Italy
| | - Giulia Di Benedetto
- Department of Biomedical and Biotechnological Sciences (BIOMETEC), Section of Pharmacology, University of Catania, Via Santa Sofia 97, Catania, Italy
| | - Cettina De Francisci
- Department of Biomedical and Biotechnological Sciences (BIOMETEC), Section of Pharmacology, University of Catania, Via Santa Sofia 97, Catania, Italy
| | - Filippo Caraci
- Department of Drug Sciences, University of Catania, Catania, Italy.,Oasi Research Institute-IRCCS, Troina, Italy
| | - Rosaria Di Mauro
- Department of Biomedical and Biotechnological Sciences (BIOMETEC), Section of Pharmacology, University of Catania, Via Santa Sofia 97, Catania, Italy.,Clinical Toxicology Unit, University Hospital, University of Catania, Catania, Italy
| | - Claudio Bucolo
- Department of Biomedical and Biotechnological Sciences (BIOMETEC), Section of Pharmacology, University of Catania, Via Santa Sofia 97, Catania, Italy
| | - Renato Bernardini
- Department of Biomedical and Biotechnological Sciences (BIOMETEC), Section of Pharmacology, University of Catania, Via Santa Sofia 97, Catania, Italy. .,Clinical Toxicology Unit, University Hospital, University of Catania, Catania, Italy.
| | - Giuseppina Cantarella
- Department of Biomedical and Biotechnological Sciences (BIOMETEC), Section of Pharmacology, University of Catania, Via Santa Sofia 97, Catania, Italy
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14
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Metformin as a Potential Agent in the Treatment of Multiple Sclerosis. Int J Mol Sci 2020; 21:ijms21175957. [PMID: 32825027 PMCID: PMC7503488 DOI: 10.3390/ijms21175957] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/16/2020] [Accepted: 08/17/2020] [Indexed: 12/18/2022] Open
Abstract
Metformin, a synthetic derivative of guanidine, is commonly used as an oral antidiabetic agent and is considered a multi-vector application agent in the treatment of other inflammatory diseases. Recent studies have confirmed the beneficial effect of metformin on immune cells, with special emphasis on immunological mechanisms. Multiple Sclerosis (MS) is an autoimmune disease of the central nervous system (CNS) characterized by various clinical courses. Although the pathophysiology of MS remains unknown, it is most likely a combination of disturbances of the immune system and biochemical pathways with a disruption of blood-brain barrier (BBB), and it is strictly related to injury of intracerebral blood vessels. Metformin has properties which are greatly desirable for MS therapy, including antioxidant, anti-inflammatory or antiplatelet functions. The latest reports relating to the cardiovascular disease confirm an increased risk of ischemic events in MS patients, which are directly associated with a coagulation cascade and an elevated pro-thrombotic platelet function. Hence, this review examines the potential favourable effects of metformin in the course of MS, its role in preventing inflammation and endothelial dysfunction, as well as its potential antiplatelet role.
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15
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Targeting Dendritic Cells with Antigen-Delivering Antibodies for Amelioration of Autoimmunity in Animal Models of Multiple Sclerosis and Other Autoimmune Diseases. Antibodies (Basel) 2020; 9:antib9020023. [PMID: 32549343 PMCID: PMC7345927 DOI: 10.3390/antib9020023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/22/2020] [Accepted: 04/30/2020] [Indexed: 02/07/2023] Open
Abstract
The specific targeting of dendritic cells (DCs) using antigen-delivering antibodies has been established to be a highly efficient protocol for the induction of tolerance and protection from autoimmune processes in experimental autoimmune encephalomyelitis (EAE), a model of multiple sclerosis (MS), as well as in some other animal disease models. As the specific mechanisms of such induced tolerance are being investigated, the newly gained insights may also possibly help to design effective treatments for patients. Here we review approaches applied for the amelioration of autoimmunity in animal models based on antibody-mediated targeting of self-antigens to DCs. Further, we discuss relevant mechanisms of immunological tolerance that underlie such approaches, and we also offer some future perspectives for the application of similar methods in certain related disease settings such as transplantation.
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16
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Yeola AP, Ignatius Arokia Doss PM, Baillargeon J, Akbar I, Mailhot B, Balood M, Talbot S, Anderson AC, Lacroix S, Rangachari M. Endogenous T Cell Receptor Rearrangement Represses Aggressive Central Nervous System Autoimmunity in a TcR-Transgenic Model on the Non-Obese Diabetic Background. Front Immunol 2020; 10:3115. [PMID: 32010149 PMCID: PMC6974510 DOI: 10.3389/fimmu.2019.03115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 12/20/2019] [Indexed: 12/16/2022] Open
Abstract
The T cell response to central nervous system (CNS) antigen in experimental autoimmune encephalomyelitis (EAE) permits one to model the immune aspects of multiple sclerosis. 1C6 transgenic mice on the non-obese diabetic (NOD) background possess a class II-restricted T cell receptor (TcR; Vα5-Vβ7) specific for the encephalitogenic peptide myelin oligodendrocyte glycoprotein (MOG)[35−55]. It remains to be determined what role is played by allelic inclusion in shaping the TcR repertoire of these mice. Here, we show that 1C6 T cells display substantial promiscuity in their expression of non-transgenically derived Vα chains. Further, enforced expression of the transgenic TcR in 1C6 × Rag1−/− mice profoundly disrupted thymic negative selection and led to a sharp decrease in the number of mature peripheral T cells. 1C6 × Rag1−/− mice developed spontaneous EAE at a significant frequency and rapidly developed fatal EAE upon immunization with myelin oligodendrocyte glycoprotein (MOG)[35−55]. Passive transfer of 1C6 × Rag1+/+ CD4+ T cells, but not CD8+ T cells or B cells, partially rescued 1C6 × Rag1−/− mice from severe EAE. FoxP3+ CD4+ Treg cells were present in the CNS of immunized 1C6 mice, as well as immunized 1C6 × Rag1−/− that had been supplemented with 1C6 CD4+ T cells. However, they were not observed in 1C6 × Rag1−/− that did not receive Rag1-sufficient 1C6 CD4+. Further, in vivo blockade of Treg accelerated the onset of symptoms in 1C6 mice immunized with MOG[35−55], indicating the pertinence of Treg-mediated control of autoimmune inflammation in this model. Thus, TcR allelic inclusion is crucial to the generation of FoxP3+ CD4+ T cells necessary for the suppression of severe CNS autoimmunity.
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Affiliation(s)
- Asmita Pradeep Yeola
- Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Quebec City, QC, Canada
| | | | - Joanie Baillargeon
- Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Quebec City, QC, Canada
| | - Irshad Akbar
- Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Quebec City, QC, Canada
| | - Benoit Mailhot
- Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Quebec City, QC, Canada
| | - Mohammad Balood
- Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Quebec City, QC, Canada.,Department of Physiology and Pharmacology, Université de Montréal, Montréal, QC, Canada
| | - Sébastien Talbot
- Department of Physiology and Pharmacology, Université de Montréal, Montréal, QC, Canada
| | - Ana Carrizosa Anderson
- Evergrande Center for Immunologic Diseases and Ann Romney Center for Neurologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, United States
| | - Steve Lacroix
- Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Quebec City, QC, Canada.,Department of Molecular Medicine, Faculty of Medicine, Laval University, Quebec City, QC, Canada
| | - Manu Rangachari
- Axe Neurosciences, Centre de Recherche du CHU de Québec-Université Laval, Quebec City, QC, Canada.,Department of Molecular Medicine, Faculty of Medicine, Laval University, Quebec City, QC, Canada
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17
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Ciccocioppo F, Bologna G, Ercolino E, Pierdomenico L, Simeone P, Lanuti P, Pieragostino D, Del Boccio P, Marchisio M, Miscia S. Neurodegenerative diseases as proteinopathies-driven immune disorders. Neural Regen Res 2020; 15:850-856. [PMID: 31719246 PMCID: PMC6990794 DOI: 10.4103/1673-5374.268971] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
In the pathophysiology of neurodegenerative disorders, the role of misfolded protein deposition leading to neurodegeneration has been primarily discussed. In the last decade, however, it has been proposed a parallel involvement of innate immune activation, chronic inflammation and adaptive immunity in the neurodegeneration mechanisms triggered by proteinopathies. New insights in the neurodegenerative field strongly suggest a role for the immune system in the pathophysiology of neurodegenerative disorders. Therefore, the hypothesis underlining the modulation of the innate and the adaptive immune system in the events linked to brain deposition of misfolded proteins could open new perspectives in the setting of specific immunotherapeutic strategies for the treatment of neurodegenerative diseases. Therefore, we have reviewed the pathogenic hypothesis in neurodegenerative pathologies, underling the links between the deposition of misfolded protein mechanisms and the immune activation.
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Affiliation(s)
- Fausta Ciccocioppo
- Department of Medicine and Aging Science; Centre on Aging Sciences and Translational Medicine (Ce.S.I-MeT), University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Giuseppina Bologna
- Department of Medicine and Aging Science; Centre on Aging Sciences and Translational Medicine (Ce.S.I-MeT), University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Eva Ercolino
- Department of Medicine and Aging Science; Centre on Aging Sciences and Translational Medicine (Ce.S.I-MeT), University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Laura Pierdomenico
- Department of Medicine and Aging Science; Centre on Aging Sciences and Translational Medicine (Ce.S.I-MeT), University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Pasquale Simeone
- Department of Medicine and Aging Science; Centre on Aging Sciences and Translational Medicine (Ce.S.I-MeT), University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Paola Lanuti
- Department of Medicine and Aging Science; Centre on Aging Sciences and Translational Medicine (Ce.S.I-MeT), University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Damiana Pieragostino
- Centre on Aging Sciences and Translational Medicine (Ce.S.I-MeT); Department of Medical, Oral and Biotechnological Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Piero Del Boccio
- Centre on Aging Sciences and Translational Medicine (Ce.S.I-MeT); Department of Medical, Oral and Biotechnological Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Marco Marchisio
- Department of Medicine and Aging Science; Centre on Aging Sciences and Translational Medicine (Ce.S.I-MeT), University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Sebastiano Miscia
- Department of Medicine and Aging Science; Centre on Aging Sciences and Translational Medicine (Ce.S.I-MeT), University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
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18
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Sambucci M, Gargano F, Guerrera G, Battistini L, Borsellino G. One, No One, and One Hundred Thousand: T Regulatory Cells' Multiple Identities in Neuroimmunity. Front Immunol 2019; 10:2947. [PMID: 31956323 PMCID: PMC6955595 DOI: 10.3389/fimmu.2019.02947] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 12/02/2019] [Indexed: 12/13/2022] Open
Abstract
As the Nobel laureate Luigi Pirandello wrote in his novels, identities can be evanescent. Although a quarter of a century has passed since regulatory T cells (Treg) were first described, new studies continue to reveal surprising and contradictory features of this lymphocyte subset. Treg cells are the core of the immunological workforce engaged in the restraint of autoimmune or inflammatory reactions, and their characterization has revealed substantial heterogeneity and complexity in the phenotype and gene expression profiles, proving them to be a most versatile and adaptive cell type, as exemplified by their plasticity in fine-tuning immune responses. Defects in Treg function are associated with several autoimmune diseases, including multiple sclerosis, which is caused by an inappropriate immune reaction toward brain components; conversely, the beneficial effects of immunomodulating therapies on disease progression have been shown to partly act upon the biology of these cells. Both in animals and in humans the pool of circulating Treg cells is a mixture of natural (nTregs) and peripherally-induced Treg (pTregs). Particularly in humans, circulating Treg cells can be phenotypically subdivided into different subpopulations, which so far are not well-characterized, particularly in the context of autoimmunity. Recently, Treg cells have been rediscovered as mediators of tissue healing, and have also shown to be involved in organ homeostasis. Moreover, stability of the Treg lineage has recently been addressed by several conflicting reports, and immune-suppressive abilities of these cells have been shown to be dynamically regulated, particularly in inflammatory conditions, adding further levels of complexity to the study of this cell subset. Finally, Treg cells exert their suppressive function through different mechanisms, some of which—such as their ectoenzymatic activity—are particularly relevant in CNS autoimmunity. Here, we will review the phenotypically and functionally discernible Treg cell subpopulations in health and in multiple sclerosis, touching also upon the effects on this cell type of immunomodulatory drugs used for the treatment of this disease.
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Affiliation(s)
- Manolo Sambucci
- Neuroimmunology Unit, Santa Lucia Foundation IRCCS, Rome, Italy
| | | | | | - Luca Battistini
- Neuroimmunology Unit, Santa Lucia Foundation IRCCS, Rome, Italy
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19
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An Overview of the Intrinsic Role of Citrullination in Autoimmune Disorders. J Immunol Res 2019; 2019:7592851. [PMID: 31886309 PMCID: PMC6899306 DOI: 10.1155/2019/7592851] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 04/03/2019] [Accepted: 09/28/2019] [Indexed: 02/07/2023] Open
Abstract
A protein undergoes many types of posttranslation modification. Citrullination is one of these modifications, where an arginine amino acid is converted to a citrulline amino acid. This process depends on catalytic enzymes such as peptidylarginine deiminase enzymes (PADs). This modification leads to a charge shift, which affects the protein structure, protein-protein interactions, and hydrogen bond formation, and it may cause protein denaturation. The irreversible citrullination reaction is not limited to a specific protein, cell, or tissue. It can target a wide range of proteins in the cell membrane, cytoplasm, nucleus, and mitochondria. Citrullination is a normal reaction during cell death. Apoptosis is normally accompanied with a clearance process via scavenger cells. A defect in the clearance system either in terms of efficiency or capacity may occur due to massive cell death, which may result in the accumulation and leakage of PAD enzymes and the citrullinated peptide from the necrotized cell which could be recognized by the immune system, where the immunological tolerance will be avoided and the autoimmune disorders will be subsequently triggered. The induction of autoimmune responses, autoantibody production, and cytokines involved in the major autoimmune diseases will be discussed.
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20
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Cannabidiol Regulates Gene Expression in Encephalitogenic T cells Using Histone Methylation and noncoding RNA during Experimental Autoimmune Encephalomyelitis. Sci Rep 2019; 9:15780. [PMID: 31673072 PMCID: PMC6823430 DOI: 10.1038/s41598-019-52362-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/30/2019] [Indexed: 12/31/2022] Open
Abstract
Cannabidiol (CBD) has been shown by our laboratory to attenuate experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis (MS). In this study, we used microarray and next generation sequencing (NGS)-based approaches to determine whether CBD would alter genome-wide histone modification and gene expression in MOG sensitized lymphocytes. We compared H3K4me3 and H3K27me3 marks in CD4+ T cells from naïve, EAE and CBD treated EAE mice by ChIP-seq. Although the overall methylation level of these two histone marks did not change significantly, the signal intensity and coverage differed in individual genes, suggesting that CBD may modulate gene expression by altering histone methylation. Further analysis showed that these histone methylation signals were differentially enriched in the binding sites of certain transcription factors, such as ZNF143 and FoxA1, suggesting that these transcription factors may play important roles in CBD mediated immune modulation. Using microarray analysis, we found that the expression pattern of many EAE-induced genes was reversed by CBD treatment which was consistent with its effect on attenuating the clinical symptoms of EAE. A unique finding of this study was that the expression of many miRNAs and lncRNAs was dramatically affected by CBD. In summary, this study demonstrates that CBD suppresses inflammation through multiple mechanisms, from histone methylation to miRNA to lncRNA.
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21
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Guo Z, Wang G, Lv Y, Wan YY, Zheng J. Inhibition of Cdk8/Cdk19 Activity Promotes Treg Cell Differentiation and Suppresses Autoimmune Diseases. Front Immunol 2019; 10:1988. [PMID: 31552016 PMCID: PMC6736578 DOI: 10.3389/fimmu.2019.01988] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 08/06/2019] [Indexed: 01/08/2023] Open
Abstract
Foxp3 expressing regulatory T (Treg) cells, as the central negative regulator of adaptive immune system, are essential to suppress immune response and maintain immune homeostasis. However, the function of Treg cells is frequently compromised in autoimmunity and hyper-activated in infections and tumor microenvironments. Thus, manipulating Treg cells becomes a promising therapeutic strategy for treating various diseases. Here we reported that inhibition of Cdk8/Cdk19 activity by small molecule inhibitors CCT251921 or Senexin A greatly promoted the differentiation of Treg cells and the expression of Treg signature genes, such as Foxp3, CTLA4, PD-1, and GITR. Mechanistically, we found that the augmented Treg cell differentiation was due to sensitized TGF-β signaling by Cdk8/Cdk19 inhibition, which was associated with attenuation of IFN-γ-Stat1 signaling and enhancement of phosphorylated Smad2/3. Importantly, treatment with Cdk8/Cdk19 inhibitor CCT251921 significantly increased Treg population and ameliorated autoimmune symptoms in an experimental autoimmune encephalomyelitis (EAE) model. Taken together, our study reveals a novel role of Cdk8/Cdk19 in Treg cell differentiation and provides a potential target for Treg cell based therapeutics.
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Affiliation(s)
- Zengli Guo
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Gang Wang
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yanfang Lv
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Yisong Y Wan
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Junnian Zheng
- Cancer Institute, Xuzhou Medical University, Xuzhou, China.,Center of Clinical Oncology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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22
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Zinser E, Naumann R, Wild AB, Michalski J, Deinzer A, Stich L, Kuhnt C, Steinkasserer A, Knippertz I. Endogenous Expression of the Human CD83 Attenuates EAE Symptoms in Humanized Transgenic Mice and Increases the Activity of Regulatory T Cells. Front Immunol 2019; 10:1442. [PMID: 31293592 PMCID: PMC6603205 DOI: 10.3389/fimmu.2019.01442] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 06/07/2019] [Indexed: 12/17/2022] Open
Abstract
The CD83 is a type I membrane protein and part of the immunoglobulin superfamily of receptors. CD83 is involved in the regulation of antigen presentation and dendritic cell dependent allogeneic T cell proliferation. A soluble form of CD83 inhibits dendritic cell maturation and function. Furthermore, CD83 is expressed on activated B cells, T cells, and in particular on regulatory T cells. Previous studies on murine CD83 demonstrated this molecule to be involved in several immune-regulatory processes, comprising that CD83 plays a key role in the development und function of different immune cells. In order to get further insights into the function of the human CD83 and to provide preclinical tools to guide the function of CD83/sCD83 for therapeutic purposes we generated Bacterial Artificial Chromosomes (BAC) transgenic mice. BACs are excellent tools for manipulating large DNA fragments and are utilized to engineer transgenic mice by pronuclear injection. Two different founders of BAC transgenic mice expressing human CD83 (BAC-hCD83tg mice) were generated and were examined for the hCD83 expression on different immune cells as well as both the in vitro and in vivo role of human CD83 (hCD83) in health and disease. Here, we found the hCD83 molecule to be present on activated DCs, B cells and subtypes of CD4+ T cells. CD8+ T cells, on the other hand, showed almost no hCD83 expression. To address the function of hCD83, we performed in vitro mixed lymphocyte reactions (MLR) as well as suppression assays and we used the in vivo model of experimental autoimmune encephalomyelitis (EAE) comparing wild-type and hCD83-BAC mice. Results herein showed a clearly diminished capacity of hCD83-BAC-derived T cells to proliferate accompanied by an enhanced activation and suppressive activity of hCD83-BAC-derived Tregs. Furthermore, hCD83-BAC mice were found to recover faster from EAE-associated symptoms than wild-type mice, encouraging the relevance also of the hCD83 as a key molecule for the regulatory phenotype of Tregs in vitro and in vivo.
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MESH Headings
- Animals
- Antigens, CD/genetics
- Antigens, CD/immunology
- B-Lymphocytes/immunology
- B-Lymphocytes/pathology
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/pathology
- Encephalomyelitis, Autoimmune, Experimental/genetics
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Humans
- Immunoglobulins/genetics
- Immunoglobulins/immunology
- Membrane Glycoproteins/genetics
- Membrane Glycoproteins/immunology
- Mice
- Mice, Transgenic
- Somatostatin-Secreting Cells/immunology
- Somatostatin-Secreting Cells/pathology
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/pathology
- CD83 Antigen
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Affiliation(s)
- Elisabeth Zinser
- Department of Immune Modulation, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Ronald Naumann
- Transgenic Core Facility, Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Andreas B. Wild
- Department of Immune Modulation, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Julia Michalski
- Department of Immune Modulation, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Andrea Deinzer
- Department of Immune Modulation, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Lena Stich
- Department of Immune Modulation, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Christine Kuhnt
- Department of Immune Modulation, Universitätsklinikum Erlangen, Erlangen, Germany
| | | | - Ilka Knippertz
- Department of Immune Modulation, Universitätsklinikum Erlangen, Erlangen, Germany
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23
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Shahi SK, Freedman SN, Murra AC, Zarei K, Sompallae R, Gibson-Corley KN, Karandikar NJ, Murray JA, Mangalam AK. Prevotella histicola, A Human Gut Commensal, Is as Potent as COPAXONE® in an Animal Model of Multiple Sclerosis. Front Immunol 2019; 10:462. [PMID: 30984162 PMCID: PMC6448018 DOI: 10.3389/fimmu.2019.00462] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 02/20/2019] [Indexed: 12/31/2022] Open
Abstract
Multiple sclerosis (MS) is a demyelinating disease of the central nervous system. We and others have shown that there is enrichment or depletion of some gut bacteria in MS patients compared to healthy controls (HC), suggesting an important role of the gut bacteria in disease pathogenesis. Thus, specific gut bacteria that are lower in abundance in MS patients could be used as a potential treatment option for this disease. In particular, we and others have shown that MS patients have a lower abundance of Prevotella compared to HC, whereas the abundance of Prevotella is increased in patients that receive disease-modifying therapies such as Copaxone® (Glatiramer acetate-GA). This inverse correlation between the severity of MS disease and the abundance of Prevotella suggests its potential for use as a therapeutic option to treat MS. Notably we have previously identified a specific strain, Prevotella histicola (P. histicola), that suppresses disease in the animal model of MS, experimental autoimmune encephalomyelitis (EAE) compared with sham treatment. In the present study we analyzed whether the disease suppressing effects of P. histicola synergize with those of the disease-modifying drug Copaxone® to more effectively suppress disease compared to either treatment alone. Treatment with P. histicola was as effective in suppressing disease as treatment with Copaxone®, whereas the combination of P. histicola plus Copaxone® was not more effective than either individual treatment. P. histicola-treated mice had an increased frequency and number of CD4+FoxP3+ regulatory T cells in periphery as well as gut and a decreased frequency of pro-inflammatory IFN-γ and IL17-producing CD4 T cells in the CNS, suggesting P. histicola suppresses disease by boosting anti-inflammatory immune responses and inhibiting pro-inflammatory immune responses. In conclusion, our study indicates that the human gut commensal P. histicola can suppress disease as efficiently as Copaxone® and may provide an alternative treatment option for MS patients.
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Affiliation(s)
- Shailesh K Shahi
- Department of Pathology, University of Iowa, Iowa City, IA, United States
| | - Samantha N Freedman
- Graduate Program in Immunology, University of Iowa, Iowa City, IA, United States
| | - Alexandra C Murra
- Department of Pathology, University of Iowa, Iowa City, IA, United States
| | - Kasra Zarei
- Medical Scientist Training Program, University of Iowa, Iowa City, IA, United States
| | | | | | - Nitin J Karandikar
- Department of Pathology, University of Iowa, Iowa City, IA, United States.,Graduate Program in Immunology, University of Iowa, Iowa City, IA, United States.,Graduate Program in Molecular Cell Biology, University of Iowa, Iowa City, IA, United States
| | - Joseph A Murray
- Department of Immunology, Mayo Clinic, Rochester, MN, United States.,Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, United States
| | - Ashutosh K Mangalam
- Department of Pathology, University of Iowa, Iowa City, IA, United States.,Graduate Program in Immunology, University of Iowa, Iowa City, IA, United States.,Medical Scientist Training Program, University of Iowa, Iowa City, IA, United States.,Graduate Program in Molecular Cell Biology, University of Iowa, Iowa City, IA, United States
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24
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Becquet L, Abad C, Leclercq M, Miel C, Jean L, Riou G, Couvineau A, Boyer O, Tan YV. Systemic administration of orexin A ameliorates established experimental autoimmune encephalomyelitis by diminishing neuroinflammation. J Neuroinflammation 2019; 16:64. [PMID: 30894198 PMCID: PMC6425555 DOI: 10.1186/s12974-019-1447-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 02/26/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Orexins (hypocretins, Hcrt) A and B are GPCR-binding hypothalamic neuropeptides known to regulate sleep/wake states and feeding behavior. A few studies have shown that orexin A exhibits anti-inflammatory and neuroprotective properties, suggesting that it might provide therapeutic effects in inflammatory and neurodegenerative diseases like multiple sclerosis (MS). In MS, encephalitogenic Th1 and Th17 cells trigger an inflammatory response in the CNS destroying the myelin sheath. Here, we investigated the effects of peripheral orexin A administration to mice undergoing experimental autoimmune encephalomyelitis (EAE), a widely used model of MS. METHODS Mice were subcutaneously immunized with myelin oligodendrocyte glycoprotein peptide (MOG)35-55 in CFA. Mice were treated intraperitoneally for five consecutive days with either PBS or 300 μg of orexin A starting at a moderate EAE score. Molecular, cellular, and histological analysis were performed by real-time PCR, ELISA, flow cytometry, and immunofluorescence. RESULTS Orexin A strongly ameliorated ongoing EAE, limiting the infiltration of pathogenic CD4+ T lymphocytes, and diminishing chemokine (MCP-1/CCL2 and IP-10/CXCL10) and cytokine (IFN-γ (Th1), IL-17 (Th17), TNF-α, IL-10, and TGF-β) expressions in the CNS. Moreover, orexin A treatment was neuroprotective, decreasing demyelination, astrogliosis, and microglial activation. Despite its strong local therapeutic effects, orexin A did not impair peripheral draining lymph node cell proliferation and Th1/Th17 cytokine production in response to MOG35-55 in vitro. CONCLUSIONS Peripherally-administered orexin A ameliorated EAE by reducing CNS neuroinflammation. These results suggest that orexins may represent new therapeutic candidates that should be further investigated for MS treatment.
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MESH Headings
- Animals
- Anti-Inflammatory Agents/administration & dosage
- Cell Proliferation/drug effects
- Central Nervous System/drug effects
- Central Nervous System/metabolism
- Cytokines/genetics
- Cytokines/metabolism
- Disease Models, Animal
- Encephalomyelitis, Autoimmune, Experimental/chemically induced
- Encephalomyelitis, Autoimmune, Experimental/drug therapy
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Female
- Glial Fibrillary Acidic Protein/metabolism
- Immune System/drug effects
- Immune System/metabolism
- Mice
- Mice, Inbred C57BL
- Myelin Basic Protein/metabolism
- Myelin-Oligodendrocyte Glycoprotein/immunology
- Myelin-Oligodendrocyte Glycoprotein/toxicity
- Orexin Receptors/genetics
- Orexin Receptors/metabolism
- Orexins/administration & dosage
- Peptide Fragments/immunology
- Peptide Fragments/toxicity
- RNA, Messenger/metabolism
- Spinal Cord/metabolism
- Spinal Cord/pathology
- T-Lymphocytes/drug effects
- T-Lymphocytes/metabolism
- Time Factors
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Affiliation(s)
- Laurine Becquet
- grid.503198.6University of Rouen Normandy, INSERM U1234 PANTHER, Institute for Research and Innovation in Biomedicine (IRIB), Faculté de Médecine et Pharmacie, 22 Boulevard Gambetta, 76183 Rouen, France
| | - Catalina Abad
- grid.503198.6University of Rouen Normandy, INSERM U1234 PANTHER, Institute for Research and Innovation in Biomedicine (IRIB), Faculté de Médecine et Pharmacie, 22 Boulevard Gambetta, 76183 Rouen, France
| | - Mathilde Leclercq
- grid.503198.6University of Rouen Normandy, INSERM U1234 PANTHER, Institute for Research and Innovation in Biomedicine (IRIB), Faculté de Médecine et Pharmacie, 22 Boulevard Gambetta, 76183 Rouen, France
| | - Camille Miel
- grid.503198.6University of Rouen Normandy, INSERM U1234 PANTHER, Institute for Research and Innovation in Biomedicine (IRIB), Faculté de Médecine et Pharmacie, 22 Boulevard Gambetta, 76183 Rouen, France
| | - Laetitia Jean
- grid.503198.6University of Rouen Normandy, INSERM U1234 PANTHER, Institute for Research and Innovation in Biomedicine (IRIB), Faculté de Médecine et Pharmacie, 22 Boulevard Gambetta, 76183 Rouen, France
| | - Gaëtan Riou
- grid.503198.6University of Rouen Normandy, INSERM U1234 PANTHER, Institute for Research and Innovation in Biomedicine (IRIB), Faculté de Médecine et Pharmacie, 22 Boulevard Gambetta, 76183 Rouen, France
| | - Alain Couvineau
- 0000 0004 0620 6317grid.462374.0Paris-Diderot University, INSERM U1149, Inflammation Research Center (CRI), DHU UNITY, Faculté de Médecine Site Bichat, 16 rue H. Huchard, 75018 Paris, France
| | - Olivier Boyer
- grid.503198.6University of Rouen Normandy, INSERM U1234 PANTHER, Institute for Research and Innovation in Biomedicine (IRIB), Faculté de Médecine et Pharmacie, 22 Boulevard Gambetta, 76183 Rouen, France
- grid.41724.34Department of Immunology and Biotherapy, University of Rouen Normandy, INSERM U1234 PANTHER, IRIB, Rouen University Hospital, 22 Boulevard Gambetta, 76183 Rouen, France
| | - Yossan-Var Tan
- grid.503198.6University of Rouen Normandy, INSERM U1234 PANTHER, Institute for Research and Innovation in Biomedicine (IRIB), Faculté de Médecine et Pharmacie, 22 Boulevard Gambetta, 76183 Rouen, France
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25
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Van Kaer L, Postoak JL, Wang C, Yang G, Wu L. Innate, innate-like and adaptive lymphocytes in the pathogenesis of MS and EAE. Cell Mol Immunol 2019; 16:531-539. [PMID: 30874627 DOI: 10.1038/s41423-019-0221-5] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 02/22/2019] [Indexed: 12/11/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS) in which the immune system damages the protective insulation surrounding the nerve fibers that project from neurons. A hallmark of MS and its animal model, experimental autoimmune encephalomyelitis (EAE), is autoimmunity against proteins of the myelin sheath. Most studies in this field have focused on the roles of CD4+ T lymphocytes, which form part of the adaptive immune system as both mediators and regulators in disease pathogenesis. Consequently, the treatments for MS often target the inflammatory CD4+ T-cell responses. However, many other lymphocyte subsets contribute to the pathophysiology of MS and EAE, and these subsets include CD8+ T cells and B cells of the adaptive immune system, lymphocytes of the innate immune system such as natural killer cells, and subsets of innate-like T and B lymphocytes such as γδ T cells, natural killer T cells, and mucosal-associated invariant T cells. Several of these lymphocyte subsets can act as mediators of CNS inflammation, whereas others exhibit immunoregulatory functions in disease. Importantly, the efficacy of some MS treatments might be mediated in part by effects on lymphocytes other than CD4+ T cells. Here we review the contributions of distinct subsets of lymphocytes on the pathogenesis of MS and EAE, with an emphasis on lymphocytes other than CD4+ T cells. A better understanding of the distinct lymphocyte subsets that contribute to the pathophysiology of MS and its experimental models will inform the development of novel therapeutic approaches.
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Affiliation(s)
- Luc Van Kaer
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA.
| | - Joshua L Postoak
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
| | - Chuan Wang
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
| | - Guan Yang
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
| | - Lan Wu
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
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26
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Amlexanox attenuates experimental autoimmune encephalomyelitis by inhibiting dendritic cell maturation and reprogramming effector and regulatory T cell responses. J Neuroinflammation 2019; 16:52. [PMID: 30823934 PMCID: PMC6396467 DOI: 10.1186/s12974-019-1438-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 02/18/2019] [Indexed: 12/24/2022] Open
Abstract
Background Amlexanox (ALX), a TBK1 inhibitor, can modulate immune responses and has anti-inflammatory properties. To investigate its role in regulating the progression of experimental autoimmune encephalomyelitis (EAE), we studied the effect of ALX on the maturation of dendritic cells (DCs) and the responses of effector and regulatory T cells (Tregs). Methods In vitro, bone marrow-derived DCs (BMDCs) were cultured and treated with ALX. Their proliferation, maturation, and their stimulatory function to induce T cells responses were detected. In vivo, the development of EAE from different groups was recorded. At the peak stage of disease, HE, LFB, and electronic microscope (EM) were used to evaluate inflammation and demyelination. Maturation of splenic DC and Th1/Th17/Treg response in the CNS and peripheral were also detected. To further explore the mechanism underlying the action of ALX in DC maturation, the activation of TBK1, IRF3, and AKT was analyzed. Results Our data indicated that ALX significantly inhibited the proliferation and maturation of BMDCs, characterized by the reduced MHCII, a co-stimulatory molecule, IL12, and IL-23 expression, along with morphological alterations. Co-culture of ALX-treated BMDCs inhibited allogeneic T cell proliferation and MOG-specific T cell response. In EAE mice, ALX significantly attenuated the EAE development by decreasing inflammatory infiltration and demyelination in the spinal cords, accompanied by reduced frequency of splenic pathogenic Th1 and Th17 cells and increased Tregs. Moreover, ALX treatment decreased Th1 and Th17 cytokines, but increased Treg cytokines in the CNS and spleen. Notably, ALX treatment reduced the frequency and expression of CD80 and CD86 on splenic DCs and lowered IL-12 and IL-23 secretion, further supporting an impaired maturation of splenic DCs. In addition, ALX potently reduced the phosphorylation of IRF3 and AKT in BMDC and splenic DCs, both of which are substrates of TBK1 and associated with DC maturation. Conclusions ALX, a TBK1 inhibitor, mitigated EAE development by inhibiting DC maturation and subsequent pathogenic Th1 and Th17 responses while increasing Treg responses through attenuating the TBK1/AKT and TBK1/IRF3 signaling.
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27
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Saito M, Otsuka K, Ushio A, Yamada A, Arakaki R, Kudo Y, Ishimaru N. Unique Phenotypes and Functions of Follicular Helper T Cells and Regulatory T Cells in Sjögren's Syndrome. Curr Rheumatol Rev 2019; 14:239-245. [PMID: 28124612 PMCID: PMC6225342 DOI: 10.2174/1573397113666170125122858] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 01/13/2017] [Accepted: 01/23/2017] [Indexed: 02/07/2023]
Abstract
Sjogren’s syndrome (SS) is a T cell-mediated autoimmune disease of the systemic exocrine glands, such as salivary and lacrimal glands. A variety of T-cell subpopulations maintain immune tolerance in the thymus and periphery through complex immune responses including cellular and humoral immunity. The T-cell subpopulations exhibiting abnormal or unique phenotypes and impaired functionality have been reported to play important roles in the cellular mechanisms of autoimmunity in SS patients and animal models of SS. In this review, we focused on follicular helper T cells related to antibody production and regulatory T cells to control immune tolerance in the pathogenesis of SS. The unique roles of these T-cell subpopulations in the process of the onset or development of SS have been demonstrated in this review of recent publications. The clinical application of these T-cell subpopulations will be helpful for the development of new techniques for diagnosis or treatment of SS in the future.
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Affiliation(s)
- Masako Saito
- Department of Oral Molecular Pathology, Tokushima University Graduate School of Biomedical Sciences, Tokushima 770-8504, Japan
| | - Kunihiro Otsuka
- Department of Oral Molecular Pathology, Tokushima University Graduate School of Biomedical Sciences, Tokushima 770-8504, Japan
| | - Aya Ushio
- Department of Oral Molecular Pathology, Tokushima University Graduate School of Biomedical Sciences, Tokushima 770-8504, Japan
| | - Akiko Yamada
- Department of Oral Molecular Pathology, Tokushima University Graduate School of Biomedical Sciences, Tokushima 770-8504, Japan
| | - Rieko Arakaki
- Department of Oral Molecular Pathology, Tokushima University Graduate School of Biomedical Sciences, Tokushima 770-8504, Japan
| | - Yasusei Kudo
- Department of Oral Molecular Pathology, Tokushima University Graduate School of Biomedical Sciences, Tokushima 770-8504, Japan
| | - Naozumi Ishimaru
- Department of Oral Molecular Pathology, Tokushima University Graduate School of Biomedical Sciences, Tokushima 770-8504, Japan
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28
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Ouyang S, Zeng Q, Tang N, Guo H, Tang R, Yin W, Wang A, Tang H, Zhou J, Xie H, Langdon WY, Yang H, Zhang J. Akt-1 and Akt-2 Differentially Regulate the Development of Experimental Autoimmune Encephalomyelitis by Controlling Proliferation of Thymus-Derived Regulatory T Cells. THE JOURNAL OF IMMUNOLOGY 2019; 202:1441-1452. [PMID: 30692211 DOI: 10.4049/jimmunol.1701204] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 12/28/2018] [Indexed: 11/19/2022]
Abstract
Akt isoforms play key roles in multiple cellular processes; however, the roles of Akt-1 and Akt-2 isoforms in the development of T cell-mediated autoimmunity are poorly defined. In this study, we showed that Akt1-/- mice develop ameliorated experimental autoimmune encephalomyelitis (EAE), a mouse model of multiple sclerosis, whereas Akt2-/- mice develop exacerbated EAE, compared with wild-type mice. At the cellular level, Akt-1 appears to inhibit proliferation of thymus-derived regulatory T cells (tTregs), which facilitates Ag-specific Th1/Th17 responses. In a sharp contrast to Akt-1, Akt-2 potentiates tTreg proliferation in vitro and in vivo and suppresses Ag-specific Th1/Th17 responses. Furthermore, treating mice with established EAE with a specific Akt-1 inhibitor suppressed disease progression. Our data demonstrate that Akt-1 and Akt-2 differentially regulate the susceptibility of mice to EAE by controlling tTreg proliferation. Our data also indicate that targeting Akt-1 is a potential therapeutic approach for multiple sclerosis in humans.
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Affiliation(s)
- Song Ouyang
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210.,Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Medical Center of Neurology, First Hospital of Changsha City, South China University, Changsha, Hunan 410005, People's Republic of China
| | - Qiuming Zeng
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210.,Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China.,Department of Pathology, University of Iowa, Iowa City, IA 52242
| | - Na Tang
- Department of Pathology, University of Iowa, Iowa City, IA 52242
| | - Hui Guo
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210.,Department of Pathology, University of Iowa, Iowa City, IA 52242
| | - Rong Tang
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210.,Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Weifan Yin
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, People's Republic of China
| | - Aimin Wang
- Medical Center of Neurology, First Hospital of Changsha City, South China University, Changsha, Hunan 410005, People's Republic of China
| | - Hongyu Tang
- Medical Center of Neurology, First Hospital of Changsha City, South China University, Changsha, Hunan 410005, People's Republic of China
| | - Jiru Zhou
- Department of Cardiothoracic Surgery, First Hospital of Changsha City, South China University, Changsha, Hunan 410005, People's Republic of China; and
| | - Hong Xie
- Medical Center of Neurology, First Hospital of Changsha City, South China University, Changsha, Hunan 410005, People's Republic of China
| | - Wallace Y Langdon
- School of Biomedical Science, University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Huan Yang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, People's Republic of China;
| | - Jian Zhang
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210; .,Department of Pathology, University of Iowa, Iowa City, IA 52242
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29
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Lippens C, Garnier L, Guyonvarc'h PM, Santiago-Raber ML, Hugues S. Extended Freeze-Dried BCG Instructed pDCs Induce Suppressive Tregs and Dampen EAE. Front Immunol 2018; 9:2777. [PMID: 30555468 PMCID: PMC6281986 DOI: 10.3389/fimmu.2018.02777] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/12/2018] [Indexed: 12/31/2022] Open
Abstract
Several clinical observations have shown that Bacillus Calmette-Guérin (BCG) vaccine has beneficial impact on patients suffering from different chronic inflammatory diseases. Here we evaluated whether BCG inactivated by Extended Freeze-Drying (EFD) which circumvents all the side effects linked to the live bacteria, could influence the development of experimental autoimmune encephalomyelitis (EAE), a mouse model for Multiple Sclerosis. EFD BCG strongly attenuates inflammation, both systemically and at the central nervous system (CNS) level, alleviating EAE. Mechanistically, EFD BCG directly impacts the phenotype of plasmacytoid dendritic cells (pDCs), and promotes their ability to induce suppressive IL-10 secreting regulatory T cells (Tregs) that inhibit encephalitogenic CD4+ T cells. When co-cultured with human allogenic naive CD4+ T cells, EFD BCG exposed human pDCs similarly induce the differentiation of IL-10 producing Tregs. Our study provides evidence that EFD BCG could be used as an immunomodulator of encephalitogenic T cells in multiple sclerosis patients.
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Affiliation(s)
- Carla Lippens
- Department of Pathology and Immunology, School of Medicine, University of Geneva, Geneva, Switzerland
| | - Laure Garnier
- Department of Pathology and Immunology, School of Medicine, University of Geneva, Geneva, Switzerland
| | | | | | - Stéphanie Hugues
- Department of Pathology and Immunology, School of Medicine, University of Geneva, Geneva, Switzerland
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30
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McCombe PA. The Short and Long-Term Effects of Pregnancy on Multiple Sclerosis and Experimental Autoimmune Encephalomyelitis. J Clin Med 2018; 7:jcm7120494. [PMID: 30486504 PMCID: PMC6306813 DOI: 10.3390/jcm7120494] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 11/21/2018] [Accepted: 11/21/2018] [Indexed: 02/07/2023] Open
Abstract
The role of pregnancy in multiple sclerosis (MS) is of importance because many patients with MS are young women in the childbearing age who require information to inform their reproductive decisions. Pregnancy is now well-known to be associated with fewer relapses of MS and reduced activity of autoimmune encephalomyelitis (EAE). However, in women with multiple sclerosis, this benefit is not always sufficient to protect against a rebound of disease activity if disease-modulating therapy is ceased for pregnancy. There is concern that use of assisted reproductive therapies can be associated with relapses of MS, but more data are required. It is thought that the beneficial effects of pregnancy are due to the pregnancy-associated changes in the maternal immune system. There is some evidence of this in human studies and studies of EAE. There is also evidence that having been pregnant leads to better long-term outcome of MS. The mechanism for this is not fully understood but it could result from epigenetic changes resulting from pregnancy or parenthood. Further studies of the mechanisms of the beneficial effects of pregnancy could provide information that might be used to produce new therapies.
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Affiliation(s)
- Pamela A McCombe
- The University of Queensland, Centre for Clinical Research, Brisbane, QLD 4029, Australia.
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Cummings M, Arumanayagam ACS, Zhao P, Kannanganat S, Stuve O, Karandikar NJ, Eagar TN. Presenilin1 regulates Th1 and Th17 effector responses but is not required for experimental autoimmune encephalomyelitis. PLoS One 2018; 13:e0200752. [PMID: 30089166 PMCID: PMC6082653 DOI: 10.1371/journal.pone.0200752] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 07/02/2018] [Indexed: 02/02/2023] Open
Abstract
Multiple Sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system (CNS) where pathology is thought to be regulated by autoreactive T cells of the Th1 and Th17 phenotype. In this study we sought to understand the functions of Presenilin 1 (PSEN1) in regulating T cell effector responses in the experimental autoimmune encephalomyelitis (EAE) murine model of MS. PSEN1 is the catalytic subunit of γ-secretase a multimolecular protease that mediates intramembranous proteolysis. γ-secretase is known to regulate several pathways of immune importance. Here we examine the effects of disrupting PSEN1 functions on EAE and T effector differentiation using small molecule inhibitors of γ-secretase (GSI) and T cell-specific conditional knockout mice (PSEN1 cKO). Surprisingly, blocking PSEN1 function by GSI treatment or PSEN1 cKO had little effect on the development or course of MOG35-55-induced EAE. In vivo GSI administration reduced the number of myelin antigen-specific T cells and suppressed Th1 and Th17 differentiation following immunization. In vitro, GSI treatment inhibited Th1 differentiation in neutral but not IL-12 polarizing conditions. Th17 differentiation was also suppressed by the presence of GSI in all conditions and GSI-treated Th17 T cells failed to induce EAE following adoptive transfer. PSEN cKO T cells showed reduced Th1 and Th17 differentiation. We conclude that γ-secretase and PSEN1-dependent signals are involved in T effector responses in vivo and potently regulate T effector differentiation in vitro, however, they are dispensable for EAE.
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Affiliation(s)
- Matthew Cummings
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, United States of America
| | | | - Picheng Zhao
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital Research Institute, Houston, TX, United States of America
| | - Sunil Kannanganat
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital Research Institute, Houston, TX, United States of America
| | - Olaf Stuve
- Neurology Section, VA North Texas Health Care System, Medical Service, Dallas, TX, United States of America
| | - Nitin J Karandikar
- Department of Pathology, University of Iowa, Iowa City, IA, United States of America
| | - Todd N Eagar
- Department of Pathology and Genomic Medicine, Houston Methodist Hospital Research Institute, Houston, TX, United States of America
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Xia P, Gong X, Xiao L, Wang Y, Zhang T, Liao Q, Mo X, Qiu X, Huang J. CCDC134 ameliorated experimental autoimmune encephalomyelitis by suppressing Th1 and Th17 cells. Brain Behav Immun 2018; 71:158-168. [PMID: 29548993 DOI: 10.1016/j.bbi.2018.03.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 02/22/2018] [Accepted: 03/12/2018] [Indexed: 01/12/2023] Open
Abstract
CCDC134 (coiled-coil domain containing 134), a cytokine-like molecule, was previously reported to exert antitumor effects by augmenting CD8+ T-cell mediated immunity. However, the dynamic changes in CCDC134 expression patterns in the spinal cord that may be involved in the progression of experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis, remains unclear. In this study, we found that CCDC134 expression was markedly increased in the spinal cord during the progression of EAE. Furthermore, we demonstrated that CCDC134 significantly reduced the severity and slowed the progression of EAE, which correlated with reduced spinal cord inflammation and demyelination. The underlying mechanism of CCDC134-induced effects involved inhibition of T helper (Th)-1 and Th17 cell differentiation and secretion of its key effector molecules IFN-γ and IL-17A via regulation of JAK/STAT signaling. These findings indicate that CCDC134 exerts potent anti-inflammatory effects through the selective modulation of pathogenic Th1 and Th17 cells by targeting critical signaling pathways. The study provides insights into the role of CCDC134 as a unique therapeutic agent for the treatment of autoimmune diseases.
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Affiliation(s)
- Peng Xia
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Xiaoting Gong
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Lin Xiao
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Yida Wang
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Tianzhuo Zhang
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Qinyuan Liao
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Xiaoning Mo
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Xiaoyan Qiu
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Jing Huang
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China.
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Oberstein TJ, Taha L, Spitzer P, Hellstern J, Herrmann M, Kornhuber J, Maler JM. Imbalance of Circulating T h17 and Regulatory T Cells in Alzheimer's Disease: A Case Control Study. Front Immunol 2018; 9:1213. [PMID: 29915582 PMCID: PMC5994416 DOI: 10.3389/fimmu.2018.01213] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/15/2018] [Indexed: 01/01/2023] Open
Abstract
The neuropathological hallmarks of Alzheimer's disease (AD), i.e., neuritic plaques and neurofibrillary tangles, consist of beta amyloid peptides (Aβ) and hyperphosphorylated Tau. These are accompanied by reactive microglia and astrocytes in the vicinity of the neuritic plaques and by changes to the peripheral immune system, e.g., an increase of the pro-inflammatory cytokines IL-1β, IL-6, and TNF-α in the peripheral blood. To address a potential involvement of peripheral T helper cell (Th) subsets in AD, we conducted a case control study with 54 individuals with AD dementia (n = 14), with mild cognitive impairment (MCI) due to AD (MCIAD, n = 14), with MCI unlikely due to AD (MCIother, n = 13), and controls without cognitive impairment (controls, n = 13). The proportions of CD3+CD8-IL-17A+IFNγ- Th17 cells, CD3+CD8-IL-17A-IFNγ+ Th1 cells, and CD4+CD127lowCD25+ regulatory T cells (Tregs) were assessed by flow cytometry. In addition, the correlations of the proportions of Th subsets to cerebrospinal fluid biomarkers were studied. CD3+CD8-IL-17A+IFNγ- Th17 cells were significantly increased in subjects with MCIAD compared to age- and sex-matched subjects with MCIother and controls (MCIAD mean = 1.13, SD = 0.77; MCIother mean = 0.58, SD = 0.28; and controls mean = 0.52, SD = 0.22; p = 0.008). The proportion of CD4+CD127lowCD25+ Tregs was not altered between the different groups, but it significantly positively related with the levels of total Tau and pTau181 (rTreg|totalTau = 0.43, p = 0.021, n = 28; rTreg|pTau181 = 0.46; p = 0.024, n = 28) in subjects with AD but not in nonAD controls (rTreg|totalTau = -0.51, p = 0.007, n = 26). The increase of circulating CD3+CD8-IL-17A+IFNγ- Th17 cells in the early stages of AD and the association of CD4+CD127lowCD25+ Tregs with neurodegeneration marker Tau may indicate that the adaptive immune system relates to neuropathological changes in AD.
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Affiliation(s)
- Timo Jan Oberstein
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
| | - Lava Taha
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
| | - Philipp Spitzer
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
| | - Janina Hellstern
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
| | - Martin Herrmann
- Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University of Erlangen-Nürnberg, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
| | - Juan Manuel Maler
- Department of Psychiatry and Psychotherapy, Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany
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Solleiro-Villavicencio H, Rivas-Arancibia S. Effect of Chronic Oxidative Stress on Neuroinflammatory Response Mediated by CD4 +T Cells in Neurodegenerative Diseases. Front Cell Neurosci 2018; 12:114. [PMID: 29755324 PMCID: PMC5934485 DOI: 10.3389/fncel.2018.00114] [Citation(s) in RCA: 264] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 04/11/2018] [Indexed: 12/16/2022] Open
Abstract
In a state of oxidative stress, there is an increase of reactive species, which induce an altered intracellular signaling, leading to dysregulation of the inflammatory response. The inability of the antioxidant defense systems to modulate the proinflammatory response is key to the onset and progression of neurodegenerative diseases. The aim of this work is to review the effect of the state of oxidative stress on the loss of regulation of the inflammatory response on the microglia and astrocytes, the induction of different CD4+T cell populations in neuroinflammation, as well as its role in some neurodegenerative diseases. For this purpose, an intentional search of original articles, short communications, and reviews, was carried out in the following databases: PubMed, Scopus, and Google Scholar. The articles reviewed included the period from 1997 to 2017. With the evidence obtained, we conclude that the loss of redox balance induces alterations in the differentiation and number of CD4+T cell subpopulations, leading to an increase in Th1 and Th17 response. This contributes to the development of neuroinflammation as well as loss of the regulation of the inflammatory response in neurodegenerative diseases such as Alzheimer's (AD), Parkinson's (PD), and Multiple Sclerosis (MS). In contrast, regulatory T cells (Tregs) and Th2 modulate the inflammatory response of effect of T cells, microglia, and astrocytes. In this respect, it has been found that the mobilization of T cells with anti-inflammatory characteristics toward damaged regions of the CNS can provide neuroprotection and become a therapeutic strategy to control inflammatory processes in neurodegeneration.
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Affiliation(s)
- Helena Solleiro-Villavicencio
- Laboratorio de Estrés Oxidativo y Plasticidad Cerebral, Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de Mexico, Ciudad de Mexico, Mexico
| | - Selva Rivas-Arancibia
- Laboratorio de Estrés Oxidativo y Plasticidad Cerebral, Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de Mexico, Ciudad de Mexico, Mexico
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Wang LM, Zhang Y, Li X, Zhang ML, Zhu L, Zhang GX, Xu YM. Nr4a1 plays a crucial modulatory role in Th1/Th17 cell responses and CNS autoimmunity. Brain Behav Immun 2018; 68:44-55. [PMID: 28962999 DOI: 10.1016/j.bbi.2017.09.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 09/25/2017] [Accepted: 09/25/2017] [Indexed: 12/12/2022] Open
Abstract
Nuclear receptor4 group A1 (Nr4a1), an orphan nuclear receptor, is down-regulated in peripheral blood mononuclear cells (MNCs) of individuals with multiple sclerosis (MS), and Nr4a1 deficiency results in severe experimental autoimmune encephalomyelitis (EAE), an animal model of MS, caused by increased macrophage infiltration into the central nervous system (CNS). However, the role of Nr4a1 in macrophage phenotype and T cell responses remains poorly understood. In the present study we show that macrophages/microglia of Nr4a1-/- mice, which exhibited earlier onset and more severe clinical EAE, were polarized to an enhanced type 1 (M1) phenotype and produced higher levels of IL-12 and TNF-α than wild type mice. Significantly increased numbers of CD4+ T cells and frequency of CD4+IFN-γ+ and CD4+IL-17+ T cells were observed in the CNS and spleen of Nr4a1-/- mice, with decreased percentages of apoptosis in CD4+ T cells. The percentages of CD4+Foxp3+ Treg cells in the CNS of Nr4a1-/- mice were also reduced. Furthermore, purified CD4+ T cells from naïve Nr4a1-/- mice exhibited enhanced Th1 and Th17 differentiation capacity, and MOG-reactive Th17 cells from Nr4a1-/- mice adoptively transferred more severe EAE in recipient mice. Our results, for the first time, demonstrate that Nr4a1 not only induces Type 2 macrophages/microglia phenotype, but is also a critical inhibitory molecule for Th1/Th17 cell differentiation. This finding indicates that Nr4a1-related molecule(s) may have therapeutic potential in MS and likely other autoimmune disorders.
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Affiliation(s)
- Li-Mei Wang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
| | - Yuan Zhang
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shanxi Normal University, Xi'an, China
| | - Xing Li
- Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, College of Life Sciences, Shanxi Normal University, Xi'an, China
| | - Ming-Liang Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lin Zhu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Guang-Xian Zhang
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA.
| | - Yu-Ming Xu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
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36
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Affiliation(s)
- Giuseppe Ronzitti
- INTEGRARE Inserm U951, Univ Evry, Université Paris-Saclay, 91002 Evry, France; Genethon, 91002 Evry, France.
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37
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Zorzella-Pezavento SFG, Mimura LAN, Fraga-Silva TFC, Ishikawa LLW, França TGD, Sartori A. Experimental Autoimmune Encephalomyelitis Is Successfully Controlled by Epicutaneous Administration of MOG Plus Vitamin D Analog. Front Immunol 2017; 8:1198. [PMID: 29085356 PMCID: PMC5650696 DOI: 10.3389/fimmu.2017.01198] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 09/11/2017] [Indexed: 12/16/2022] Open
Abstract
Multiple sclerosis (MS) is an inflammatory and demyelinating disorder of the central nervous system (CNS). Experimental autoimmune encephalomyelitis (EAE) has been widely employed to evaluate new strategies to control MS, including procedures to induce immunological tolerance. Considering that skin exposure to protein antigens can induce tolerance and that vitamin D analogs conserve immunomodulatory potential and are less toxic, we investigated the efficacy of epicutaneous application of a myelin oligodendrocyte glycoprotein peptide (MOG35–55) associated with paricalcitol (PARI) on EAE development. Three and 11 days after EAE induction, C57BL/6 mice were treated with an occlusive patch containing MOG plus PARI. Clinical parameters were daily assessed, whereas immunological and histological evaluations were performed during the acute EAE phase. MOG and MOG + PARI significantly controlled disease development reducing weight loss and clinical score. Moreover, MOG and MOG + PARI reduced the inflammatory process and preserved the myelin sheath in the CNS. High percentages of Foxp3+ regulatory T cells (Tregs) and lower MHCII fluorescence intensity in dendritic cells in draining lymph nodes were concomitantly observed. MOG + PARI association was, however, more efficient being able to reduce disease incidence and clinical scores more significantly than MOG or PARI alone. This experimental group also displayed a higher ratio between mRNA expression for Foxp3 and RORc and a higher percentage of Foxp3+ cells in the CNS. Modulation of activation markers observed in microglial cells eluted from EAE treated mice were confirmed by in vitro studies with the BV-2 microglial cell line. The results show that MOG + PARI association applied by an epicutaneous route controlled EAE development. Protective involved mechanisms include mainly a higher proportion of Tregs and also a direct immunomodulatory effect of PARI on microglial cells.
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Affiliation(s)
| | - Luiza Ayumi Nishiyama Mimura
- Department of Microbiology and Immunology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | | | - Larissa Lumi Watanabe Ishikawa
- Department of Microbiology and Immunology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - Thais Graziela Donegá França
- Department of Microbiology and Immunology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - Alexandrina Sartori
- Department of Microbiology and Immunology, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
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38
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Madireddi S, Eun SY, Mehta AK, Birta A, Zajonc DM, Niki T, Hirashima M, Podack ER, Schreiber TH, Croft M. Regulatory T Cell-Mediated Suppression of Inflammation Induced by DR3 Signaling Is Dependent on Galectin-9. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2017; 199:2721-2728. [PMID: 28877989 PMCID: PMC5659314 DOI: 10.4049/jimmunol.1700575] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 08/08/2017] [Indexed: 01/01/2023]
Abstract
Stimulation of several TNF receptor family proteins has been shown to dampen inflammatory disease in murine models through augmenting the number and/or activity of regulatory T cells (Tregs). We recently found that one molecule, 4-1BB, used binding to Galectin-9 to exert its immunosuppressive effects and drive expansion of CD8+Foxp3- Tregs. We now show that ligation of another TNFR family molecule, DR3, which has previously been found to strongly expand CD4+Foxp3+ Tregs and suppress inflammation, also requires Galectin-9. We found that the extracellular region of DR3 directly binds to Galectin-9, and that Galectin-9 associates with DR3 in Tregs. From studies in vitro with Galectin-9-/- CD4+ T cells and Tregs, we found that stimulatory activity induced by ligating DR3 was in part dependent on Galectin-9. In vivo, in a model of experimental autoimmune encephalomyelitis, we show that an agonist of DR3 suppressed disease, correlating with expansion of CD4+Foxp3+ Tregs, and this protective effect was lost in Galectin-9-/- mice. Similar results were seen in an allergic lung inflammation model. Thus, we demonstrate a novel function of Galectin-9 in facilitating activity of DR3 related to Treg-mediated suppression.
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Affiliation(s)
- Shravan Madireddi
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037
| | - So-Young Eun
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037
| | - Amit K Mehta
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037
| | - Aruna Birta
- Division of Cell Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037
| | - Dirk M Zajonc
- Division of Cell Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037
- Department of Internal Medicine, Faculty of Medicine and Health Sciences, Ghent University, 9000 Ghent, Belgium
| | - Toshiro Niki
- Department of Immunology and Immunopathology, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
- GalPharma, Co., Ltd., Takamatsu, Kagawa 761-8071, Japan
| | - Mitsuomi Hirashima
- Department of Immunology and Immunopathology, Faculty of Medicine, Kagawa University, Kagawa 761-0793, Japan
- GalPharma, Co., Ltd., Takamatsu, Kagawa 761-8071, Japan
| | - Eckhard R Podack
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL 33136; and
| | - Taylor H Schreiber
- Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL 33136; and
| | - Michael Croft
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037;
- Department of Medicine, University of California, San Diego, LA Jolla, CA 92093
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Salehipour Z, Haghmorad D, Sankian M, Rastin M, Nosratabadi R, Soltan Dallal MM, Tabasi N, Khazaee M, Nasiraii LR, Mahmoudi M. Bifidobacterium animalis in combination with human origin of Lactobacillus plantarum ameliorate neuroinflammation in experimental model of multiple sclerosis by altering CD4+ T cell subset balance. Biomed Pharmacother 2017; 95:1535-1548. [PMID: 28946394 DOI: 10.1016/j.biopha.2017.08.117] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 08/27/2017] [Accepted: 08/28/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Multiple Sclerosis (MS) is a chronic inflammatory autoimmune disease of the central nervous system (CNS). Recent reports have shown that probiotics can induce immunomodulatory activity with promising effects in inflammatory diseases. This study was designed to reveal the molecular and cellular mechanisms underlying the effect of Lactobacillus plantarum A7, which comprises human commensal bacteria, and Bifidobacterium animalis, a potential probiotic strain, on alleviation of experimental autoimmune encephalomyelitis (EAE), an animal model of MS. METHODS To evaluate the therapeutic effects of probiotic strains, female C57BL/6 mice (8-10 wks old) received Lactobacillus plantarum A7, Bifidobacterium animalis PTCC 1631or a mixture of both strains through oral administration daily for 22days beginning simultaneous with induction of EAE. The clinical parameters were recorded daily. On Day 22, each mouse was bled, and their spinal cord was removed for histology analysis. The effects of the treatments on regulatory T (Treg) cells level were evaluated using flow cytometry, and T-cell proliferation was assessed using a BrdU incorporation assay. The supernatants of spleen and lymph nodes cultured and mononuclear cells were collected for quantification of different panel of pro and anti-inflammatory cytokines by ELISA. The analysis of gene expression was performed at RNA level for transcription factors by real-time PCR. RESULTS The results showed that treatment with a mixture of the two strains caused a more significant delay in the time of disease onset and clinical score compared to when the strains were used alone. The pathological features of the disease, such as mononuclear infiltration into the CNS, were also inhibited more significantly by the combinational approach. The results also revealed that treatment with combination of both strains enhanced the population of CD4+CD25+Foxp3+-expressing T-cells in the lymph nodes and the spleen. TREATMENT with our probiotic strains markedly inhibited disease associated cytokines while increased anti-inflammatory cytokines. Additionally, L. plantarumA7 and B. animalis ameliorated EAE condition by favoring Th2 and Treg differentiation via up-regulation of Foxp3 and GATA3 in the brain and spleen as well as inhibited the differentiation of Th1 and Th17 cells. CONCLUSIONS The current research provided evidence that probiotic therapy with L. plantarum and B. animalis can effectively attenuate EAE progression as well as reinforce the polarization of regulatory T-cells.
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Affiliation(s)
- Zohre Salehipour
- Immunology Research Center, Bu Ali Research Institute, School of Medicine; Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Dariush Haghmorad
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
| | - Mojtaba Sankian
- Immunology Research Center, Bu Ali Research Institute, School of Medicine; Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Maryam Rastin
- Immunology Research Center, Bu Ali Research Institute, School of Medicine; Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Reza Nosratabadi
- Immunology of Infectious Diseases Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran; Immunology Department, Faculty of medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
| | - Mohammad Mehdi Soltan Dallal
- Division of Microbiology, Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Nafiseh Tabasi
- Immunology Research Center, Bu Ali Research Institute, School of Medicine; Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Mahdieh Khazaee
- Immunology Research Center, Bu Ali Research Institute, School of Medicine; Mashhad University of Medical Sciences, Mashhad, Iran.
| | | | - Mahmoud Mahmoudi
- Immunology Research Center, Bu Ali Research Institute, School of Medicine; Mashhad University of Medical Sciences, Mashhad, Iran.
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40
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Gene Therapy-Induced Antigen-Specific Tregs Inhibit Neuro-inflammation and Reverse Disease in a Mouse Model of Multiple Sclerosis. Mol Ther 2017; 26:173-183. [PMID: 28943274 PMCID: PMC5762980 DOI: 10.1016/j.ymthe.2017.09.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 08/23/2017] [Accepted: 09/05/2017] [Indexed: 02/06/2023] Open
Abstract
The devastating neurodegenerative disease multiple sclerosis (MS) could substantially benefit from an adeno-associated virus (AAV) immunotherapy designed to restore a robust and durable antigen-specific tolerance. However, developing a sufficiently potent and lasting immune-regulatory therapy that can intervene in ongoing disease is a major challenge and has thus been elusive. We addressed this problem by developing a highly effective and robust tolerance-inducing in vivo gene therapy. Using a pre-clinical animal model, we designed a liver-targeting gene transfer vector that expresses full-length myelin oligodendrocyte glycoprotein (MOG) in hepatocytes. We show that by harnessing the tolerogenic nature of the liver, this powerful gene immunotherapy restores immune tolerance by inducing functional MOG-specific regulatory T cells (Tregs) in vivo, independent of major histocompatibility complex (MHC) restrictions. We demonstrate that mice treated prophylactically are protected from developing disease and neurological deficits. More importantly, we demonstrate that when given to mice with preexisting disease, ranging from mild neurological deficits to severe paralysis, the gene immunotherapy abrogated CNS inflammation and significantly reversed clinical symptoms of disease. This specialized approach for inducing antigen-specific immune tolerance has significant therapeutic potential for treating MS and other autoimmune disorders.
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41
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Jones A, Hawiger D. Peripherally Induced Regulatory T Cells: Recruited Protectors of the Central Nervous System against Autoimmune Neuroinflammation. Front Immunol 2017; 8:532. [PMID: 28536579 PMCID: PMC5422564 DOI: 10.3389/fimmu.2017.00532] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Accepted: 04/21/2017] [Indexed: 12/14/2022] Open
Abstract
Defects in regulatory T cells (Treg cells) aggravate multiple sclerosis (MS) after its onset and the absence of Treg cell functions can also exacerbate the course of disease in an animal model of MS. However, autoimmune neuroinflammation in many MS models can be acutely provoked in healthy animals leading to an activation of encephalitogenic T cells despite the induction of immune tolerance in the thymus including thymically produced (t)Treg cells. In contrast, neuroinflammation can be ameliorated or even completely prevented by the antigen-specific Treg cells formed extrathymically in the peripheral immune system (pTreg cells) during tolerogenic responses to relevant neuronal antigens. This review discusses the specific roles of Treg cells in blocking neuroinflammation, examines the impact of peripheral tolerance and dendritic cells on a relevant regulation of neuroinflammation, and explores some of the most recent advances in elucidation of specific mechanisms of the conversion and function of pTreg cells including the roles of CD5 and Hopx in these processes.
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Affiliation(s)
- Andrew Jones
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Daniel Hawiger
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, USA
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42
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Hickey MJ, Chow Z. Viewing immune regulation as it happens: in vivo imaging for investigation of regulatory T-cell function. Immunol Cell Biol 2017; 95:514-519. [PMID: 28420873 DOI: 10.1038/icb.2017.33] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 04/10/2017] [Accepted: 04/10/2017] [Indexed: 12/12/2022]
Abstract
Regulatory T cells (Tregs) play indispensable roles in the immune system, in limiting excessive or inappropriate immune and inflammatory responses. They achieve this function via effects on other immune cells in the secondary lymphoid system, and in peripheral locations such as skin, gut and bone marrow. As for the more extensively studied cellular players in the immune system, particularly dendritic cells and conventional T cells, in vivo imaging of Tregs via two-photon (or multiphoton) microscopy (MPM) has been central to the development of understanding how these cells function. In this brief review, we will describe the studies that have utilised MPM to examine Treg behaviour in vivo. These studies have investigated Treg behaviour in lymph nodes and spleen, as well as in peripheral organs such as skin, small intestine and bone marrow. The findings from these experiments underline how assumptions made about Treg function based on results of in vitro experiments are often not supported by direct visualisation of these cells in their normal in vivo settings. Together this work reveals that only via MPM analysis can Treg function be investigated in the complicated multicellular environments where conventional T cells, antigen-presenting cells and other potential cellular targets of Tregs are present with each undergoing their own specific actions.
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Affiliation(s)
- Michael J Hickey
- Centre for Inflammatory Diseases, Department of Medicine, Monash University, Monash Medical Centre, Clayton, Victoria, Australia
| | - Zachary Chow
- Centre for Inflammatory Diseases, Department of Medicine, Monash University, Monash Medical Centre, Clayton, Victoria, Australia
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43
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Noori-Zadeh A, Mesbah-Namin SA, Saboor-Yaraghi AA. Epigenetic and gene expression alterations of FOXP3 in the T cells of EAE mouse model of multiple sclerosis. J Neurol Sci 2017; 375:203-208. [PMID: 28320131 DOI: 10.1016/j.jns.2017.01.060] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 01/22/2017] [Accepted: 01/23/2017] [Indexed: 12/15/2022]
Abstract
Multiple sclerosis (MS) is a chronic autoimmune disease with demyelination and neurodegeneration of the central nervous system. It has been shown that the regulatory T (Treg) cells are responsible for maintaining tolerance to self-antigens and can suppress the autoimmune process in several animal models such as experimental autoimmune encephalomyelitis (EAE), a mouse model of MS. Recent basic studies have demonstrated that forkhead box P (FOXP3) and BTB domain and CNC homolog 2 (BACH2) are the master transcription factors of these cells playing a pivotal role in the polarization of naïve T cells into Treg cells. In the current study, the expression of FOXP3 and BACH2 genes and FOXP3 promoter methylation were evaluated in T cells of the EAE-induced mice. The results of this study showed a prominent and significant hypermethylation of the FOXP3 gene promoter in the EAE-induced mice compared to the sham and control groups. The expression of FOXP3 and BACH2 genes was significantly decreased in the EAE group in comparison with the sham and control groups. This study suggests that the epigenetic modification of FOXP3 gene is involved in the pathogenesis of EAE and this could be important in therapy in an appropriate and logical statement.
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Affiliation(s)
- Ali Noori-Zadeh
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Seyed Alireza Mesbah-Namin
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Ali Akbar Saboor-Yaraghi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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44
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Mufazalov IA, Schelmbauer C, Regen T, Kuschmann J, Wanke F, Gabriel LA, Hauptmann J, Müller W, Pinteaux E, Kurschus FC, Waisman A. IL-1 signaling is critical for expansion but not generation of autoreactive GM-CSF+ Th17 cells. EMBO J 2016; 36:102-115. [PMID: 27827809 DOI: 10.15252/embj.201694615] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 09/05/2016] [Accepted: 09/22/2016] [Indexed: 12/16/2022] Open
Abstract
Interleukin-1 (IL-1) is implicated in numerous pathologies, including multiple sclerosis and its animal model experimental autoimmune encephalomyelitis (EAE). However, the exact mechanism by which IL-1 is involved in the generation of pathogenic T cells and in disease development remains largely unknown. We found that following EAE induction, pertussis toxin administration leads to IL-1 receptor type 1 (IL-1R1)-dependent IL-1β expression by myeloid cells in the draining lymph nodes. This myeloid-derived IL-1β did not vitally contribute to the generation and plasticity of Th17 cells, but rather promoted the expansion of a GM-CSF+ Th17 cell subset, thereby enhancing its encephalitogenic potential. Lack of expansion of GM-CSF-producing Th17 cells led to ameliorated disease in mice deficient for IL-1R1 specifically in T cells. Importantly, pathogenicity of IL-1R1-deficient T cells was fully restored by IL-23 polarization and expansion in vitro Therefore, our data demonstrate that IL-1 functions as a mitogenic mediator of encephalitogenic Th17 cells rather than qualitative inducer of their generation.
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Affiliation(s)
- Ilgiz A Mufazalov
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Carsten Schelmbauer
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Tommy Regen
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Janina Kuschmann
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Florian Wanke
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Laureen A Gabriel
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Judith Hauptmann
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Werner Müller
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Emmanuel Pinteaux
- Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Florian C Kurschus
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Ari Waisman
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
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45
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Tsunoda I, Sato F, Omura S, Fujita M, Sakiyama N, Park AM. Three immune-mediated disease models induced by Theiler's virus: Multiple sclerosis, seizures and myocarditis. CLINICAL & EXPERIMENTAL NEUROIMMUNOLOGY 2016; 7:330-345. [PMID: 28603559 PMCID: PMC5464738 DOI: 10.1111/cen3.12341] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Theiler's murine encephalomyelitis virus (TMEV) infection has been used as a viral model for multiple sclerosis (MS), as TMEV can induce chronic inflammatory demyelinating lesions with viral persistence in the spinal cord of SJL/J mice. In contrast, when C57BL/6 mice are infected with TMEV, the mice can clear the virus from the central nervous system (CNS), without viral persistence or demyelination, but develop seizures and hippocampal sclerosis, which has been used as a viral model for seizures/epilepsy. In the two TMEV-induced CNS disease models, not only viral infection, but also immune responses contribute to the pathogenesis. Interestingly, acquired immunity plays an effector role in the MS model, whereas innate immunity appears to contribute to the development of seizures. Recently, we have established the third TMEV-induced disease model, a mouse model for viral myocarditis, using C3H mice. TMEV-induced myocarditis is a triphasic disease, which mimics human myocarditis; phase I, mediated by viral replication in the heart and innate immunity; phase II, mediated by acquired immunity; and phase III, resulted from cardiac fibrosis. The genetic susceptibility to the aforementioned three models (MS, seizures and myocarditis) differs among mouse strains. We have compared and contrasted the three models induced by one single pathogen, TMEV, particularly in regard to the roles of T helper cells and natural killer T cells, which will give an insight into how interactions between the immune system and the host's genetic background determine the tissue tropism of virus and the development of virus-induced organ-specific immunopathology.
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Affiliation(s)
- Ikuo Tsunoda
- Department of Microbiology, Kindai University Faculty of Medicine, Osakasayama, Osaka, Japan
| | - Fumitaka Sato
- Department of Microbiology, Kindai University Faculty of Medicine, Osakasayama, Osaka, Japan
| | - Seiichi Omura
- Department of Microbiology, Kindai University Faculty of Medicine, Osakasayama, Osaka, Japan
| | - Mitsugu Fujita
- Department of Microbiology, Kindai University Faculty of Medicine, Osakasayama, Osaka, Japan
| | - Namie Sakiyama
- Department of Microbiology, Kindai University Faculty of Medicine, Osakasayama, Osaka, Japan
| | - Ah-Mee Park
- Department of Microbiology, Kindai University Faculty of Medicine, Osakasayama, Osaka, Japan
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Zhao X, Zhang X, Lv Y, Xu Y, Li M, Pan Q, Chu Y, Liu N, Zhang GX, Zhu L. Matrine downregulates IL-33/ST2 expression in the central nervous system of rats with experimental autoimmune encephalomyelitis. Immunol Lett 2016; 178:97-104. [PMID: 27562326 DOI: 10.1016/j.imlet.2016.08.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 08/08/2016] [Accepted: 08/17/2016] [Indexed: 01/30/2023]
Abstract
Interleukin (IL)-33 is a recently described member of the IL-1 family and functions as a ligand for ST2, a member of the IL-1 receptor family. The role of IL-33/ST2 axis in the pathogenesis of experimental autoimmune encephalomyelitis (EAE), an experimental model of multiple sclerosis (MS), remains controversial. Matrine (MAT), a quinolizidine alkaloid derived from the herb Radix Sophorae Flave, has been recently found to suppress clinical EAE and CNS inflammation. However, the underlying immunoregulatory mechanisms have not been fully elucidated, and whether this effect of MAT is through inhibiting the function of the IL-33/ST2 axis is not known. In this study, we investigated the relationship between the therapeutic effects of MAT and IL-33/ST2 expression. MAT treatment successfully attenuated severe clinical deficit and histopathological changes, compared to untreated controls. While IL-33/ST2 mRNA expression was largely increased in spinal cord of EAE rats compared to naïve rats, this expression was significantly inhibited in rats treated with MAT. These results were further confirmed by their protein levels tested with immunohistochemistry. Together, our study demonstrates that MAT treatment regulates the inflammatory IL-33/ST2 axis, thus being a novel mechanism underlying the effect of MAT.
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MESH Headings
- Alkaloids/pharmacology
- Animals
- Anthelmintics/pharmacology
- Central Nervous System/metabolism
- Disease Models, Animal
- Down-Regulation
- Encephalomyelitis, Autoimmune, Experimental/genetics
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/metabolism
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Female
- Gene Expression Regulation/drug effects
- Immunohistochemistry
- Interleukin-33/genetics
- Interleukin-33/metabolism
- Multiple Sclerosis/genetics
- Multiple Sclerosis/immunology
- Multiple Sclerosis/metabolism
- Quinolizines/pharmacology
- Rats
- Receptors, Interleukin-1/genetics
- Receptors, Interleukin-1/metabolism
- Spinal Cord/immunology
- Spinal Cord/metabolism
- Spinal Cord/pathology
- Matrines
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Affiliation(s)
- Xiaoyu Zhao
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Xiaojian Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Ying Lv
- Department of Nutriology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Yuming Xu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Menglong Li
- Department of Neurosurgery, Nanshi Affiliated Hospital of Henan University, Nanyang 473000, Henan, China
| | - Qingxia Pan
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Yaojuan Chu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Nan Liu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China
| | - Guang-Xian Zhang
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA 19107, USA.
| | - Lin Zhu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, China.
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47
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Bravo B, Gallego MI, Flores AI, Bornstein R, Puente-Bedia A, Hernández J, de la Torre P, García-Zaragoza E, Perez-Tavarez R, Grande J, Ballester A, Ballester S. Restrained Th17 response and myeloid cell infiltration into the central nervous system by human decidua-derived mesenchymal stem cells during experimental autoimmune encephalomyelitis. Stem Cell Res Ther 2016; 7:43. [PMID: 26987803 PMCID: PMC4797118 DOI: 10.1186/s13287-016-0304-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 02/29/2016] [Accepted: 03/02/2016] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Multiple sclerosis is a widespread inflammatory demyelinating disease. Several immunomodulatory therapies are available, including interferon-β, glatiramer acetate, natalizumab, fingolimod, and mitoxantrone. Although useful to delay disease progression, they do not provide a definitive cure and are associated with some undesirable side-effects. Accordingly, the search for new therapeutic methods constitutes an active investigation field. The use of mesenchymal stem cells (MSCs) to modify the disease course is currently the subject of intense interest. Decidua-derived MSCs (DMSCs) are a cell population obtained from human placental extraembryonic membranes able to differentiate into the three germ layers. This study explores the therapeutic potential of DMSCs. METHODS We used the experimental autoimmune encephalomyelitis (EAE) animal model to evaluate the effect of DMSCs on clinical signs of the disease and on the presence of inflammatory infiltrates in the central nervous system. We also compared the inflammatory profile of spleen T cells from DMSC-treated mice with that of EAE control animals, and the influence of DMSCs on the in vitro definition of the Th17 phenotype. Furthermore, we analyzed the effects on the presence of some critical cell types in central nervous system infiltrates. RESULTS Preventive intraperitoneal injection of DMSCs resulted in a significant delay of external signs of EAE. In addition, treatment of animals already presenting with moderate symptoms resulted in mild EAE with reduced disease scores. Besides decreased inflammatory infiltration, diminished percentages of CD4(+)IL17(+), CD11b(+)Ly6G(+) and CD11b(+)Ly6C(+) cells were found in infiltrates of treated animals. Early immune response was mitigated, with spleen cells of DMSC-treated mice displaying low proliferative response to antigen, decreased production of interleukin (IL)-17, and increased production of the anti-inflammatory cytokines IL-4 and IL-10. Moreover, lower RORγT and higher GATA-3 expression levels were detected in DMSC-treated mice. DMSCs also showed a detrimental influence on the in vitro definition of the Th17 phenotype. CONCLUSIONS DMSCs modulated the clinical course of EAE, modified the frequency and cell composition of the central nervous system infiltrates during the disease, and mediated an impairment of Th17 phenotype establishment in favor of the Th2 subtype. These results suggest that DMSCs might provide a new cell-based therapy for the control of multiple sclerosis.
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Affiliation(s)
- Beatriz Bravo
- Instituto de Salud Carlos III, Unidad Funcional de Investigación en Enfermedades Crónicas, Laboratory of Gene Regulation, Carretera de Majadahonda-Pozuelo Km 2, 28220 Madrid, Spain
| | - Marta I. Gallego
- Instituto de Salud Carlos III, Unidad Funcional de Investigación en Enfermedades Crónicas, Laboratory of Mammary Gland Pathology, Carretera de Majadahonda-Pozuelo Km 2, 28220 Madrid, Spain
| | - Ana I. Flores
- Grupo de Medicina Regenerativa, Instituto de Investigación Hospital 12 de Octubre, Avda. Córdoba s/n, 28041 Madrid, Spain
| | - Rafael Bornstein
- Hospital Central de Cruz Roja, Servicio de Hematología y Hemoterapia, Avenida de Reina Victoria 24, 28003 Madrid, Spain
| | - Alba Puente-Bedia
- Instituto de Salud Carlos III, Unidad Funcional de Investigación en Enfermedades Crónicas, Laboratory of Gene Regulation, Carretera de Majadahonda-Pozuelo Km 2, 28220 Madrid, Spain
| | - Javier Hernández
- Instituto de Salud Carlos III, Unidad Funcional de Investigación en Enfermedades Crónicas, Laboratory of Gene Regulation, Carretera de Majadahonda-Pozuelo Km 2, 28220 Madrid, Spain
| | - Paz de la Torre
- Grupo de Medicina Regenerativa, Instituto de Investigación Hospital 12 de Octubre, Avda. Córdoba s/n, 28041 Madrid, Spain
| | - Elena García-Zaragoza
- Instituto de Salud Carlos III, Unidad Funcional de Investigación en Enfermedades Crónicas, Laboratory of Mammary Gland Pathology, Carretera de Majadahonda-Pozuelo Km 2, 28220 Madrid, Spain
| | - Raquel Perez-Tavarez
- Instituto de Salud Carlos III, Unidad Funcional de Investigación en Enfermedades Crónicas, Histology Core Unit, Carretera de Majadahonda-Pozuelo Km 2, 28220 Madrid, Spain
| | - Jesús Grande
- Grupo de Medicina Regenerativa, Instituto de Investigación Hospital 12 de Octubre, Avda. Córdoba s/n, 28041 Madrid, Spain
| | - Alicia Ballester
- Instituto de Salud Carlos III, Unidad Funcional de Investigación en Enfermedades Crónicas, Laboratory of Gene Regulation, Carretera de Majadahonda-Pozuelo Km 2, 28220 Madrid, Spain
| | - Sara Ballester
- Instituto de Salud Carlos III, Unidad Funcional de Investigación en Enfermedades Crónicas, Laboratory of Gene Regulation, Carretera de Majadahonda-Pozuelo Km 2, 28220 Madrid, Spain
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48
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Li Y, Wang H, Zhou X, Xie X, Chen X, Jie Z, Zou Q, Hu H, Zhu L, Cheng X, Brightbill HD, Wu LC, Wang L, Sun SC. Cell intrinsic role of NF-κB-inducing kinase in regulating T cell-mediated immune and autoimmune responses. Sci Rep 2016; 6:22115. [PMID: 26912039 PMCID: PMC4766435 DOI: 10.1038/srep22115] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 02/02/2016] [Indexed: 02/05/2023] Open
Abstract
NF-κB inducing kinase (NIK) is a central component of the noncanonical NF-κB signaling pathway. Although NIK has been extensively studied for its function in the regulation of lymphoid organ development and B-cell maturation, the role of NIK in regulating T cell functions remains unclear and controversial. Using T cell-conditional NIK knockout mice, we here demonstrate that although NIK is dispensable for thymocyte development, it has a cell-intrinsic role in regulating the homeostasis and function of peripheral T cells. T cell-specific NIK ablation reduced the frequency of effector/memory-like T cells and impaired T cell responses to bacterial infection. The T cell-conditional NIK knockout mice were also defective in generation of inflammatory T cells and refractory to the induction of a T cell-dependent autoimmune disease, experimental autoimmune encephalomyelitis. Our data suggest a crucial role for NIK in mediating the generation of effector T cells and their recall responses to antigens. Together, these findings establish NIK as a cell-intrinsic mediator of T cell functions in both immune and autoimmune responses.
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Affiliation(s)
- Yanchuan Li
- National Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Tsinghua University, Beijing, China
- Department of Immunology, The University of Texas MD Anderson Cancer Center, 7455 Fannin Street, Box 902, Houston TX 77030, USA
| | - Hui Wang
- Department of Immunology, The University of Texas MD Anderson Cancer Center, 7455 Fannin Street, Box 902, Houston TX 77030, USA
| | - Xiaofei Zhou
- Department of Immunology, The University of Texas MD Anderson Cancer Center, 7455 Fannin Street, Box 902, Houston TX 77030, USA
| | - Xiaoping Xie
- Department of Immunology, The University of Texas MD Anderson Cancer Center, 7455 Fannin Street, Box 902, Houston TX 77030, USA
| | - Xiang Chen
- Department of Immunology, The University of Texas MD Anderson Cancer Center, 7455 Fannin Street, Box 902, Houston TX 77030, USA
| | - Zuliang Jie
- Department of Immunology, The University of Texas MD Anderson Cancer Center, 7455 Fannin Street, Box 902, Houston TX 77030, USA
| | - Qiang Zou
- Department of Immunology, The University of Texas MD Anderson Cancer Center, 7455 Fannin Street, Box 902, Houston TX 77030, USA
| | - Hongbo Hu
- State Key Laboratory of Biotherapy, West China Hospital, Si-Chuan University and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, P. R. China
| | - Lele Zhu
- Department of Immunology, The University of Texas MD Anderson Cancer Center, 7455 Fannin Street, Box 902, Houston TX 77030, USA
| | - Xuhong Cheng
- Department of Immunology, The University of Texas MD Anderson Cancer Center, 7455 Fannin Street, Box 902, Houston TX 77030, USA
| | - Hans D Brightbill
- Department of Immunology, Genentech Inc., South San Francisco, CA 94080
| | - Lawren C. Wu
- Department of Immunology, Genentech Inc., South San Francisco, CA 94080
| | - Linfang Wang
- National Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Tsinghua University, Beijing, China
| | - Shao-Cong Sun
- Department of Immunology, The University of Texas MD Anderson Cancer Center, 7455 Fannin Street, Box 902, Houston TX 77030, USA
- The University of Texas Graduate School of Biomedical Sciences, Houston, TX 77030, USA
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49
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Guan H, Singh UP, Rao R, Mrelashvili D, Sen S, Hao H, Zumbrun EE, Singh NP, Nagarkatti PS, Nagarkatti M. Inverse correlation of expression of microRNA-140-5p with progression of multiple sclerosis and differentiation of encephalitogenic T helper type 1 cells. Immunology 2016; 147:488-98. [PMID: 26780721 DOI: 10.1111/imm.12583] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 12/17/2015] [Accepted: 01/04/2016] [Indexed: 12/11/2022] Open
Abstract
The role of microRNA in the regulation of encephalitogenic T-cell development is of interest in understanding the pathogenesis of multiple sclerosis (MS). Direct binding of microRNAs to their target mRNAs usually suppresses gene expression and facilitates mRNA degradation. In this study, we observed that the expression of several microRNAs was significantly altered in patients with MS. Interestingly, the expression of miR-140-5p, among other microRNAs, was significantly decreased in the peripheral blood mononuclear cells of patients with MS, and this microRNA may regulate encephalitogenic T helper type 1 (Th1) cell differentiation. The expression level of miR-140-5p was inversely correlated with disease severity with greater reduction in relapsing disease compared with remitting disease. Transfection of synthetic miR-140-5p in peripheral blood mononuclear cells suppressed encephalitogenic Th1 differentiation. Signal transducer and activator of transcription 1 (STAT1) was the functional target of miR-140-5p - transfection of the synthetic miR-140-5p suppressed activation of STAT1 and the expression of its downstream target, T-bet. Our results suggested that miR-140-5p is probably involved in the regulation of encephalitogenic T cells in the pathogenesis of MS.
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Affiliation(s)
- Hongbing Guan
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, USA.,Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Udai P Singh
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, USA
| | - Roshni Rao
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, USA
| | - Davit Mrelashvili
- Department of Neurology, University of South Carolina School of Medicine, Columbia, SC, USA
| | - Souvik Sen
- Department of Neurology, University of South Carolina School of Medicine, Columbia, SC, USA
| | - Haiping Hao
- Deep Sequencing and Microarray Core, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Elizabeth E Zumbrun
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, USA
| | - Narendra P Singh
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, USA
| | - Prakash S Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, USA
| | - Mitzi Nagarkatti
- Department of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, USA.,WJB Dorn Veterans Affairs Medical Center, Columbia, SC, USA
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50
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Patterson SJ, Pesenacker AM, Wang AY, Gillies J, Mojibian M, Morishita K, Tan R, Kieffer TJ, Verchere CB, Panagiotopoulos C, Levings MK. T regulatory cell chemokine production mediates pathogenic T cell attraction and suppression. J Clin Invest 2016; 126:1039-51. [PMID: 26854929 DOI: 10.1172/jci83987] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 12/14/2015] [Indexed: 01/12/2023] Open
Abstract
T regulatory cells (Tregs) control immune homeostasis by preventing inappropriate responses to self and nonharmful foreign antigens. Tregs use multiple mechanisms to control immune responses, all of which require these cells to be near their targets of suppression; however, it is not known how Treg-to-target proximity is controlled. Here, we found that Tregs attract CD4+ and CD8+ T cells by producing chemokines. Specifically, Tregs produced both CCL3 and CCL4 in response to stimulation, and production of these chemokines was critical for migration of target T cells, as Tregs from Ccl3-/- mice, which are also deficient for CCL4 production, did not promote migration. Moreover, CCR5 expression by target T cells was required for migration of these cells to supernatants conditioned by Tregs. Tregs deficient for expression of CCL3 and CCL4 were impaired in their ability to suppress experimental autoimmune encephalomyelitis or islet allograft rejection in murine models. Moreover, Tregs from subjects with established type 1 diabetes were impaired in their ability to produce CCL3 and CCL4. Together, these results demonstrate a previously unappreciated facet of Treg function and suggest that chemokine secretion by Tregs is a fundamental aspect of their therapeutic effect in autoimmunity and transplantation.
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MESH Headings
- Adolescent
- Adoptive Transfer
- Animals
- Cell Proliferation
- Cells, Cultured
- Chemokine CCL3/biosynthesis
- Chemokine CCL3/metabolism
- Chemokine CCL4/biosynthesis
- Chemokine CCL4/metabolism
- Chemotaxis, Leukocyte
- Child
- Child, Preschool
- Diabetes Mellitus, Experimental/immunology
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Type 1/immunology
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/therapy
- Female
- Humans
- Infant
- Male
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Transgenic
- Receptors, CCR5/physiology
- T-Lymphocytes, Regulatory/physiology
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