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Peng Q, Luo X, Mo L, Xu X, Liu Y, Liu D, Yang P. TRIM41 contributes to the pathogenesis of airway allergy by compromising dendritic cells' tolerogenic properties. iScience 2024; 27:110067. [PMID: 38883815 PMCID: PMC11176661 DOI: 10.1016/j.isci.2024.110067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/19/2024] [Accepted: 05/17/2024] [Indexed: 06/18/2024] Open
Abstract
Dendritic cells (DC) play a crucial role in the initiation of immune responses. TRIM41, an E3 ubiquitin ligase, can facilitate targeting protein degradation. The purpose of this study is to analyze the role of TRIM41 in the pathogenesis of airway allergy (AA) and the impact of regulating TRIM41 on suppressing AA. We observed that the airway DCs of AA mice had a higher expression of Trim41. The expression of Trim41 in airway DCs was associated with the DCs' tolerogenic functions of AA mice. The AA responses, including increased amounts of eosinophil peroxidase, mast cell protease-1, Th2 cytokines, and specific IgE in bronchoalveolar lavage fluids, were positively correlated with the Trim41 expression in mouse airway DCs. TRIM41 induced c-Maf degradation and interfered with the Il10 expression in airway DCs, which could be counteracted by inhibiting TRIM41. Regulation of TRIM41 mitigated experimental AA responses.
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Affiliation(s)
- Qiuying Peng
- Department of Pediatric Otolaryngology, Shenzhen Hospital of Southern Medical University, Shenzhen, China
- Department of Pediatrics, Guangzhou Panyu Maternal and Children Health Hospital, Guangzhou, China
| | - Xiangqian Luo
- Department of Pediatric Otolaryngology, Shenzhen Hospital of Southern Medical University, Shenzhen, China
| | - Lihua Mo
- Department of Pediatric Otolaryngology, Shenzhen Hospital of Southern Medical University, Shenzhen, China
- Institute of Allergy & Immunology of Shenzhen University and State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
- Department of General Practice Medicine, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xuejie Xu
- Institute of Allergy & Immunology of Shenzhen University and State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
| | - Yu Liu
- Department of General Practice Medicine, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Dabo Liu
- Department of Pediatric Otolaryngology, Shenzhen Hospital of Southern Medical University, Shenzhen, China
| | - Pingchang Yang
- Institute of Allergy & Immunology of Shenzhen University and State Key Laboratory of Respiratory Diseases Allergy Division at Shenzhen University, Shenzhen, China
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2
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Zhang Z, Li Y, Chen N, Li H, Chen S, Cui X, Shao H, Wei L, Ma J, Zhang S, Li X, Zhang X. Pertussis toxin-induced inhibition of Wnt/β-catenin signaling in dendritic cells promotes an autoimmune response in experimental autoimmune uveitis. J Neuroinflammation 2023; 20:24. [PMID: 36739434 PMCID: PMC9898909 DOI: 10.1186/s12974-023-02707-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 01/27/2023] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Previous reports have indicated that disrupting the Wnt/β-catenin pathway in dendritic cells (DCs) may affect the progression of autoimmune inflammation; however, the factors and timing that regulate Wnt/β-catenin signaling have not been clearly understood. METHODS Experimental autoimmune uveitis (EAU) mice and Vogt-Koyanagi-Harada disease (VKH) patient samples were used to detect the expression of Wnt/β-catenin pathway genes. Western blot, real-time PCR, flow cytometry, and ELISA were performed to examine the expression of components of the Wnt/β-catenin pathway and inflammatory factors. DC-specific β-catenin knockout mice and 6-bromoindirubin-3'-oxime (BIO) administered mice were used to observe the effect of disrupting the Wnt pathway on EAU pathogenesis. RESULTS Wnt/β-catenin signaling was inhibited in DCs during the induction phase of EAU. The inhibition was mediated by pertussis toxin (PTX), which promoted DC maturation, in turn promoting pathogenic T cell proliferation and differentiation. In vivo experiments confirmed that deleting β-catenin in DCs enhanced EAU severity, and pre-injection of PTX advanced EAU onset. Administration of a Wnt activator (BIO) limited the effects of PTX, in turn ameliorating EAU. CONCLUSIONS Our results demonstrate that PTX plays a key role as a virulence factor in initiating autoimmune inflammation via DCs by inhibiting Wnt/β-catenin signaling in EAU, and highlight the potential mechanism by which infection can trigger apparent autoimmunity.
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Affiliation(s)
- Zhihui Zhang
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Yongtao Li
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Nu Chen
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Huan Li
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Shuang Chen
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Xuexue Cui
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Hui Shao
- grid.266623.50000 0001 2113 1622Department of Ophthalmology and Visual Sciences, Kentucky Lions Eye Center, University of Louisville, School of Medicine, Louisville, KY USA
| | - Lai Wei
- grid.12981.330000 0001 2360 039XState Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Jianxing Ma
- grid.241167.70000 0001 2185 3318Department of Biochemistry, Wake Forest University School of Medicine, Winston-Salem, NC USA
| | - Song Zhang
- grid.216938.70000 0000 9878 7032Institute for Immunology and College of Life Sciences, Nankai University, Tianjin, China
| | - Xiaorong Li
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Xiaomin Zhang
- grid.412729.b0000 0004 1798 646XTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
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3
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Demyelination Lesions Do Not Correlate with Clinical Manifestations by Bordetella pertussis Toxin Concentrations. LIFE (BASEL, SWITZERLAND) 2022; 12:life12070962. [PMID: 35888052 PMCID: PMC9316486 DOI: 10.3390/life12070962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/20/2022] [Accepted: 06/21/2022] [Indexed: 11/21/2022]
Abstract
Multiple sclerosis (MS) is an autoimmune disease of the central nervous system, characterized as an inflammatory demyelinating disease. Given the need for improvements in MS treatment, many studies are mainly conducted through preclinical models such as experimental allergic encephalomyelitis (EAE). This study analyzes the relationships between histopathological and clinical score findings at EAE. Twenty-three female Rattus norvegicus Lewis rats from 6 to 8 weeks were induced to EAE. Nineteen rats underwent EAE induction distributed in six groups to establish the evolution of clinical signs, and four animals were in the control group. Bordetella pertussis toxin (PTX) doses were 200, 250, 300, 350 and 400 ng. The clinical scores of the animals were analyzed daily, from seven to 24 days after induction. The brains and spinal cords were collected for histopathological analyses. The results demonstrated that the dose of 250 ng of PTX induced a higher clinical score and reduction in weight. All induced groups demonstrated leukocyte infiltration, activation of microglia and astrocytes, and demyelinated plaques in the brains in histopathology. It was concluded that the dose of 250 ng and 350 ng of PTX were the best choices to trigger the brain and spinal cord demyelination lesions and did not correlate with clinical scores.
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4
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Stimmer L, Confais J, Jong A, Veth J, Fovet CM, Horellou P, Massonneau J, Perrin A, Miotello G, Avazeri E, Hart B, Deiva K, Le Grand R, Armengaud J, Bajramovic JJ, Contamin H, Serguera C. Recombinant myelin oligodendrocyte glycoprotein quality modifies evolution of experimental autoimmune encephalitis in macaques. J Transl Med 2021; 101:1513-1522. [PMID: 34376778 DOI: 10.1038/s41374-021-00646-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/11/2021] [Accepted: 07/16/2021] [Indexed: 11/09/2022] Open
Abstract
Experimental autoimmune encephalitis (EAE) is a well-recognized model for the study of human acquired demyelinating diseases (ADD), a group of inflammatory disorders of the central nervous system (CNS) characterized by inflammation, myelin loss, and neurological impairment of variable severity. In rodents, EAE is typically induced by active immunization with a combination of myelin-derived antigen and a strong adjuvant as complete Freund's adjuvant (CFA), containing components of the mycobacterial wall, while myelin antigen alone or associated with other bacterial components, as lipopolysaccharides (LPS), often fails to induce EAE. In contrast to this, EAE can be efficiently induced in non-human primates by immunization with the recombinant human myelin oligodendrocyte glycoprotein (rhMOG), produced in Escherichia coli (E. coli), purified and formulated with incomplete Freund's adjuvant (IFA), which lacks bacterial elements. Here, we provide evidence indicating how trace amounts of bacterial contaminants within rhMOG may influence the course and severity of EAE in the cynomolgus macaque immunized with rhMOG/IFA. The residual amount of E. coli contaminants, as detected with mass spectrometry within rhMOG protein stocks, were found to significantly modulate the severity of clinical, radiological, and histologic hallmarks of EAE in macaques. Indeed, animals receiving the purest rhMOG showed milder disease severity, increased numbers of remissions, and reduced brain damage. Histologically, these animals presented a wider diversity of lesion types, including changes in normal-appearing white matter and prephagocytic lesions. Non-human primates EAE model with milder histologic lesions reflect more accurately ADD and permits to study of the pathogenesis of disease initiation and progression.
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Affiliation(s)
- Lev Stimmer
- Commissariat à l'Énergie Atomique (CEA), Institut de Biologie François Jacob, Molecular Imaging Research Center (MIRCen), Fontenay-aux-Roses, France. .,INSERM, UMR 1127, Paris Brain & Spine Institute (ICM), Paris, France.
| | | | - Anke't Jong
- Alternatives Unit, Biomedical Primate Research Centre (BPRC), Rijswijk, the Netherlands
| | - Jennifer Veth
- Alternatives Unit, Biomedical Primate Research Centre (BPRC), Rijswijk, the Netherlands
| | - Claire-Maëlle Fovet
- Commissariat à l'Énergie Atomique (CEA), Institut de Biologie François Jacob, Molecular Imaging Research Center (MIRCen), Fontenay-aux-Roses, France.,Université Paris-Sud, CEA, Inserm UMR 1184 and Institut de biologie François Jacob, Infectious Diseases Models for Innovative Therapies (IDMIT), Fontenay-aux-Roses, France
| | - Philippe Horellou
- Université Paris-Sud, CEA, Inserm UMR 1184 and Institut de biologie François Jacob, Infectious Diseases Models for Innovative Therapies (IDMIT), Fontenay-aux-Roses, France
| | - Julie Massonneau
- Commissariat à l'Énergie Atomique (CEA), Institut de Biologie François Jacob, Molecular Imaging Research Center (MIRCen), Fontenay-aux-Roses, France
| | - Audrey Perrin
- Commissariat à l'Énergie Atomique (CEA), Institut de Biologie François Jacob, Molecular Imaging Research Center (MIRCen), Fontenay-aux-Roses, France
| | - Guylaine Miotello
- Département Médicaments et Technologie pour la Santé (DMTS), Université Paris-Saclay, CEA, INRAE, SPI, Bagnols-sur-Cèze, France
| | - Emilie Avazeri
- Département Médicaments et Technologie pour la Santé (DMTS), Université Paris-Saclay, CEA, INRAE, SPI, Bagnols-sur-Cèze, France
| | - Bert't Hart
- Department Anatomy and Neuroscience, Amsterdam University Medical Center (VUMC), Amsterdam, Netherlands and University of Groningen, Department Biomedical Sciences of Cells and Systems, University Medical Center Groningen, Groningen, the Netherlands
| | - Kumaran Deiva
- Université Paris-Sud, CEA, Inserm UMR 1184 and Institut de biologie François Jacob, Infectious Diseases Models for Innovative Therapies (IDMIT), Fontenay-aux-Roses, France.,AP-HP, Hôpitaux Universitaires Paris Saclay, Department of Pediatric Neurology, National Reference Center for Rare Inflammatory and Auto-immune Brain and Spinal Diseases, Paris, France
| | - Roger Le Grand
- Université Paris-Sud, CEA, Inserm UMR 1184 and Institut de biologie François Jacob, Infectious Diseases Models for Innovative Therapies (IDMIT), Fontenay-aux-Roses, France
| | - Jean Armengaud
- Département Médicaments et Technologie pour la Santé (DMTS), Université Paris-Saclay, CEA, INRAE, SPI, Bagnols-sur-Cèze, France
| | - Jeffrey J Bajramovic
- Alternatives Unit, Biomedical Primate Research Centre (BPRC), Rijswijk, the Netherlands
| | | | - Ché Serguera
- Commissariat à l'Énergie Atomique (CEA), Institut de Biologie François Jacob, Molecular Imaging Research Center (MIRCen), Fontenay-aux-Roses, France.,INSERM, UMR 1127, Paris Brain & Spine Institute (ICM), Paris, France.,Asfalia Biologics, Paris Brain & Spine Institute (ICM), Paris, France
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5
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Optineurin modulates the maturation of dendritic cells to regulate autoimmunity through JAK2-STAT3 signaling. Nat Commun 2021; 12:6198. [PMID: 34707127 PMCID: PMC8551263 DOI: 10.1038/s41467-021-26477-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 09/30/2021] [Indexed: 02/01/2023] Open
Abstract
Optineurin (OPTN) has important functions in diverse biological processes and diseases, but its effect on dendritic cell (DC) differentiation and functionality remains elusive. Here we show that OPTN is upregulated in human and mouse DC maturation, and that deletion of Optn in mice via CD11c-Cre attenuates DC maturation and impairs the priming of CD4+ T cells, thus ameliorating autoimmune symptoms such as experimental autoimmune encephalomyelitis (EAE). Mechanistically, OPTN binds to the JH1 domain of JAK2 and inhibits JAK2 dimerization and phosphorylation, thereby preventing JAK2-STAT3 interaction and inhibiting STAT3 phosphorylation to suppress downstream transcription of IL-10. Without such a negative regulation, Optn-deficient DCs eventually induce an IL-10/JAK2/STAT3/IL-10 positive feedback loop to suppress DC maturation. Finally, the natural product, Saikosaponin D, is identified as an OPTN inhibitor, effectively inhibiting the immune-stimulatory function of DCs and the disease progression of EAE in mice. Our findings thus highlight a pivotal function of OPTN for the regulation of DC functions and autoimmune disorders.
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6
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Fan X, Zhang Y, Ouyang R, Luo B, Li L, He W, Liu M, Jiang N, Yang F, Wang L, Zhou B. Cysticercus cellulosae Regulates T-Cell Responses and Interacts With the Host Immune System by Excreting and Secreting Antigens. Front Cell Infect Microbiol 2021; 11:728222. [PMID: 34540719 PMCID: PMC8447960 DOI: 10.3389/fcimb.2021.728222] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/06/2021] [Indexed: 11/26/2022] Open
Abstract
Cysticercus cellulosae (C. cellulosae) excretes and secretes antigens during the parasitic process to regulate the host immune response; however, resulting immune response and cytokine production in the host during infection still remains unclear. We used C. cellulosae crude antigens (CAs) as controls to explore the effect of excretory secretory antigens (ESAs) on T-cell immune responses in piglets. C. cellulosae ESAs induced imbalanced CD4+/CD8+ T-cell proportions, increased the CD4+Foxp3+ and CD8+Foxp3+ T-cell frequencies, and induced lymphocytes to produce interleukin-10, which was mainly attributed to CD4+ and CD4−CD8− T cells. The ESAs also induced Th2-type immune responses. The results showed that the ability of C. cellulosae to escape the host immune attacks and establish a persistent infection may be related to host immune response regulation by the ESAs.
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Affiliation(s)
- Xianmin Fan
- Department of Parasitology, School of Basic Medical Sciences, Zunyi Medical University, Zunyi, China
| | - Yue Zhang
- Department of Parasitology, School of Basic Medical Sciences, Zunyi Medical University, Zunyi, China
| | - Renhui Ouyang
- Department of Parasitology, School of Basic Medical Sciences, Zunyi Medical University, Zunyi, China
| | - Bo Luo
- Department of Parasitology, School of Basic Medical Sciences, Zunyi Medical University, Zunyi, China
| | - Lizhu Li
- Department of Parasitology, School of Basic Medical Sciences, Zunyi Medical University, Zunyi, China
| | - Wei He
- Department of Parasitology, School of Basic Medical Sciences, Zunyi Medical University, Zunyi, China
| | - Meichen Liu
- Department of Parasitology, School of Basic Medical Sciences, Zunyi Medical University, Zunyi, China
| | - Nan Jiang
- Department of Parasitology, School of Basic Medical Sciences, Zunyi Medical University, Zunyi, China
| | - Fengjiao Yang
- Department of Parasitology, School of Basic Medical Sciences, Zunyi Medical University, Zunyi, China
| | - Lingjun Wang
- Department of Parasitology, School of Basic Medical Sciences, Zunyi Medical University, Zunyi, China
| | - Biying Zhou
- Department of Parasitology, School of Basic Medical Sciences, Zunyi Medical University, Zunyi, China
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7
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Zhou H, Wang L, Liu F. Immunological Impact of Intestinal T Cells on Metabolic Diseases. Front Immunol 2021; 12:639902. [PMID: 33679800 PMCID: PMC7930072 DOI: 10.3389/fimmu.2021.639902] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 01/29/2021] [Indexed: 12/12/2022] Open
Abstract
Emerging evidence accumulated over the past several years has uncovered intestinal CD4+ T cells as an essential mediator in modulating intestinal immunity in health and diseases. It has also been increasingly recognized that dietary and microbiota-derived factors play key roles in shaping the intestinal CD4+ T-cell compartment. This review aims to discuss the current understanding on how the intestinal T cell immune responses are disturbed by obesity and metabolic stress. In addition, we review how these changes influence systemic metabolic homeostasis and the T-cell-mediated crosstalk between gut and liver or brain in the progression of obesity and its related diseases. Lastly, we highlight the potential roles of some drugs that target intestinal T cells as a therapeutic treatment for metabolic diseases. A better understanding of the interaction among metabolites, bacterial signals, and T cell immune responses in the gut and their roles in systemic inflammation in metabolic tissues should shed new light on the development of effective treatment of obesity and related disorders.
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Affiliation(s)
- Haiyan Zhou
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Liwen Wang
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Feng Liu
- Department of Metabolism and Endocrinology, National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, The Second Xiangya Hospital of Central South University, Changsha, China.,Department of Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
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8
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Zhou H, Peng X, Hu J, Wang L, Luo H, Zhang J, Zhang Y, Li G, Ji Y, Zhang J, Bai J, Liu M, Zhou Z, Liu F. DsbA-L deficiency in T cells promotes diet-induced thermogenesis through suppressing IFN-γ production. Nat Commun 2021; 12:326. [PMID: 33436607 PMCID: PMC7804451 DOI: 10.1038/s41467-020-20665-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 12/10/2020] [Indexed: 01/17/2023] Open
Abstract
Adipose tissue-resident T cells have been recognized as a critical regulator of thermogenesis and energy expenditure, yet the underlying mechanisms remain unclear. Here, we show that high-fat diet (HFD) feeding greatly suppresses the expression of disulfide-bond A oxidoreductase-like protein (DsbA-L), a mitochondria-localized chaperone protein, in adipose-resident T cells, which correlates with reduced T cell mitochondrial function. T cell-specific knockout of DsbA-L enhances diet-induced thermogenesis in brown adipose tissue (BAT) and protects mice from HFD-induced obesity, hepatosteatosis, and insulin resistance. Mechanistically, DsbA-L deficiency in T cells reduces IFN-γ production and activates protein kinase A by reducing phosphodiesterase-4D expression, leading to increased BAT thermogenesis. Taken together, our study uncovers a mechanism by which T cells communicate with brown adipocytes to regulate BAT thermogenesis and whole-body energy homeostasis. Our findings highlight a therapeutic potential of targeting T cells for the treatment of over nutrition-induced obesity and its associated metabolic diseases.
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MESH Headings
- Adipocytes, Brown/drug effects
- Adipocytes, Brown/metabolism
- Adipose Tissue, Brown/drug effects
- Adipose Tissue, Brown/metabolism
- Adipose Tissue, White/drug effects
- Adipose Tissue, White/metabolism
- Animals
- Diet, High-Fat
- Down-Regulation/drug effects
- Energy Metabolism/drug effects
- Feeding Behavior
- Glutathione Transferase/deficiency
- Glutathione Transferase/metabolism
- Insulin Resistance
- Interferon-gamma/administration & dosage
- Interferon-gamma/biosynthesis
- Interferon-gamma/pharmacology
- Male
- Mice, Knockout
- Mitochondria/drug effects
- Mitochondria/metabolism
- Obesity/genetics
- Obesity/pathology
- T-Lymphocytes/drug effects
- T-Lymphocytes/metabolism
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/metabolism
- Thermogenesis/drug effects
- Thermogenesis/genetics
- Uncoupling Protein 1/metabolism
- Mice
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Affiliation(s)
- Haiyan Zhou
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China.
| | - Xinyi Peng
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China
| | - Jie Hu
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China
| | - Liwen Wang
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China
| | - Hairong Luo
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China
| | - Junyan Zhang
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China
| | - Yacheng Zhang
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China
| | - Guobao Li
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China
| | - Yujiao Ji
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China
| | - Jingjing Zhang
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China
| | - Juli Bai
- Department of Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA
| | - Meilian Liu
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, 87131, USA
| | - Zhiguang Zhou
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China
| | - Feng Liu
- National Clinical Research Center for Metabolic Diseases, Metabolic Syndrome Research Center, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 410011, Changsha, Hunan, China.
- Department of Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229, USA.
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9
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Sex differences in EAE reveal common and distinct cellular and molecular components. Cell Immunol 2021; 359:104242. [PMID: 33190849 PMCID: PMC7770093 DOI: 10.1016/j.cellimm.2020.104242] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 09/27/2020] [Indexed: 12/27/2022]
Abstract
Experimental autoimmune encephalomyelitis (EAE) is commonly used as an animal model for evaluating clinical, histological and immunological processes potentially relevant to the human disease multiple sclerosis (MS), for which the mode of disease induction remains largely unknown. An important caveat for interpreting EAE processes in mice is the inflammatory effect of immunization with myelin peptides emulsified in Complete Freund's Adjuvant (CFA), often followed by additional injections of pertussis toxin (Ptx) in some strains to induce EAE. The current study evaluated clinical, histological, cellular (spleen), and chemokine-driven processes in spinal cords of male vs. female C57BL/6 mice that were immunized with mouse (m)MOG-35-55/CFA/Ptx to induce EAE; immunized with saline/CFA/Ptx only (CFA, no EAE); or were untreated (Naïve, no EAE). Analysis of response curves utilized a rigorous and sophisticated methodology to parse and characterize the effects of EAE and adjuvant alone vs. the Naive baseline responses. The results demonstrated stronger pro-inflammatory responses of immune cells and their associated cytokines, chemokines, and receptors in male vs. female CFA and EAE mice that appeared to be offset partially by increased percentages of male anti-inflammatory, regulatory and checkpoint T cell, B cell, and monocyte/macrophage subsets. These sex differences in peripheral immune responses may explain the reduced cellular infiltration and differing chemokine profiles in the Central Nervous System (CNS) of male vs. female CFA immunized mice and the reduced CNS infiltration and demyelination observed in male vs. female EAE groups of mice that ultimately resulted in the same clinical EAE disease severity in both sexes. Our findings suggest EAE disease severity is governed not only by the degree of CNS infiltration and demyelination, but also by the balance of pro-inflammatory vs. regulatory cell types and their secreted cytokines and chemokines.
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10
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Srinivasan S, Babensee JE. Controlled Delivery of Immunomodulators from a Biomaterial Scaffold Niche to Induce a Tolerogenic Phenotype in Human Dendritic Cells. ACS Biomater Sci Eng 2020; 6:4062-4076. [DOI: 10.1021/acsbiomaterials.0c00439] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sangeetha Srinivasan
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Julia E. Babensee
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
- Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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11
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Shao JB, Yang G, Zhang YY, Ma F, Luo XQ, Mo LH, Liu ZQ, Liao WJ, Qiu QH, Li DC, Yang LT, Zhang XW, Liu DB, Yang PC. Mal-deficiency impairs the tolerogenicity of dendritic cell of patients with allergic rhinitis. Cell Immunol 2019; 344:103930. [PMID: 31196568 DOI: 10.1016/j.cellimm.2019.103930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 06/04/2019] [Accepted: 06/04/2019] [Indexed: 01/23/2023]
Abstract
The tolerogenic dendritic cell dysfunction is associated with the pathogenesis of immune diseases. Microbial stimulus is required in the maintenance of immune functions. This study aims to elucidate the role of Mal signal in the maintenance of DEC205+ DC (decDC) immune tolerogenic function. In this study, peripheral DCs were collected from allergic rhinitis (AR) patients and healthy control (HC) subjects to assess the functional status of decDCs. An AR murine model was developed to test the role of Mal signals in the maintenance of decDCs' functions. We observed that AR decDCs (decDCs obtained from AR patients) were incompetent in the induction of type 1 regulatory T cells (Tr1 cells). AR decDCs expressed less IL-10 than that in HC decDCs. IL-10 mRNA decayed spontaneously in AR decDCs. Tat-activating regulatory DNA-binding protein-43 (TDP43) protected IL-10 mRNA from decay. AR decDCs expressed lower levels of Mal than that in HC decDCs. Mal depletion resulted in IL-10 mRNA decay in HC decDCs. Reconstitution of Mal in AR decDCs restored the capacity of inducing Tr1 cells and attenuated experimental AR in mice. In conclusion, Mal plays a critical role in the maintenance of decDC's immune tolerogenic function. The absence or insufficient Mal signal impairs decDC's tolerogenic property. Reconstitution of Mal in AR decDCs can restore the immune tolerogenic capacity, which may have translational potential in the treatment of AR and other allergic diseases.
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Affiliation(s)
- Jian-Bo Shao
- Department of Pediatric Otolaryngology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Gui Yang
- Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China; Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China
| | - Yuan-Yi Zhang
- Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Fei Ma
- Department of Otolaryngology, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Xiang-Qian Luo
- Department of Pediatric Otolaryngology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Li-Hua Mo
- Department of Pediatric Otolaryngology, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Zhi-Qiang Liu
- Research Center of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China; Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China
| | - Wen-Jing Liao
- Department of Otolaryngology, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Qian-Hui Qiu
- Department of Otolaryngology, Zhujiang Hospital of Southern Medical University, Guangzhou, China
| | - Dong-Cai Li
- Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China
| | - Li-Tao Yang
- Longgang ENT Hospital and Shenzhen ENT Institute, Shenzhen, China
| | - Xiao-Wen Zhang
- Department of Otolaryngology, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China.
| | - Da-Bo Liu
- Department of Pediatric Otolaryngology, Shenzhen Hospital, Southern Medical University, Shenzhen, China.
| | - Ping-Chang Yang
- Department of Otolaryngology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.
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12
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Functional Programming of Innate Immune Cells in Response to Bordetella pertussis Infection and Vaccination. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1183:53-80. [PMID: 31432398 DOI: 10.1007/5584_2019_404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Despite widespread vaccination, B. pertussis remains one of the least controlled vaccine-preventable diseases. Although it is well known that acellular and whole cell pertussis vaccines induce distinct immune functionalities in memory cells, much less is known about the role of innate immunity in this process. In this review, we provide an overview of the known differences and similarities in innate receptors, innate immune cells and inflammatory signalling pathways induced by the pertussis vaccines either licensed or in development and compare this to primary infection with B. pertussis. Despite the crucial role of innate immunity in driving memory responses to B. pertussis, it is clear that a significant knowledge gap remains in our understanding of the early innate immune response to vaccination and infection. Such knowledge is essential to develop the next generation of pertussis vaccines with improved host defense against B. pertussis.
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13
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Zhou H, Liu F. Regulation, Communication, and Functional Roles of Adipose Tissue-Resident CD4 + T Cells in the Control of Metabolic Homeostasis. Front Immunol 2018; 9:1961. [PMID: 30233575 PMCID: PMC6134258 DOI: 10.3389/fimmu.2018.01961] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 08/09/2018] [Indexed: 01/21/2023] Open
Abstract
Evidence accumulated over the past few years has documented a critical role for adipose tissue (AT)-resident immune cells in the regulation of local and systemic metabolic homeostasis. In the lean state, visceral adipose tissue (VAT) is predominated by anti-inflammatory T-helper 2 (Th2) and regulatory T (Treg) cell subsets. As obesity progresses, the population of Th2 and Treg cells decreases while that of the T-helper 1 (Th1) and T-helper 17 (Th17) cells increases, leading to augmented inflammation and insulin resistance. Notably, recent studies also suggest a potential role of CD4+ T cells in the control of thermogenesis and energy homeostasis. In this review, we have summarized recent advances in understanding the characteristics and functional roles of AT CD4+ T cell subsets during obesity and energy expenditure. We have also discussed new findings on the crosstalk between CD4+ T cells and local antigen-presenting cells (APCs) including adipocytes, macrophages, and dendritic cells (DCs) to regulate AT function and metabolic homeostasis. Finally, we have highlighted the therapeutic potential of targeting CD4+ T cells as an effective strategy for the treatment of obesity and its associated metabolic diseases.
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Affiliation(s)
- Haiyan Zhou
- Department of Metabolism and Endocrinology, Metabolic Syndrome Research Center of Central South University, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Feng Liu
- Department of Metabolism and Endocrinology, Metabolic Syndrome Research Center of Central South University, The Second Xiangya Hospital, Central South University, Changsha, China.,Department of Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, TX, United States
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14
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Stutzer C, Richards SA, Ferreira M, Baron S, Maritz-Olivier C. Metazoan Parasite Vaccines: Present Status and Future Prospects. Front Cell Infect Microbiol 2018; 8:67. [PMID: 29594064 PMCID: PMC5859119 DOI: 10.3389/fcimb.2018.00067] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 02/26/2018] [Indexed: 12/21/2022] Open
Abstract
Eukaryotic parasites and pathogens continue to cause some of the most detrimental and difficult to treat diseases (or disease states) in both humans and animals, while also continuously expanding into non-endemic countries. Combined with the ever growing number of reports on drug-resistance and the lack of effective treatment programs for many metazoan diseases, the impact that these organisms will have on quality of life remain a global challenge. Vaccination as an effective prophylactic treatment has been demonstrated for well over 200 years for bacterial and viral diseases. From the earliest variolation procedures to the cutting edge technologies employed today, many protective preparations have been successfully developed for use in both medical and veterinary applications. In spite of the successes of these applications in the discovery of subunit vaccines against prokaryotic pathogens, not many targets have been successfully developed into vaccines directed against metazoan parasites. With the current increase in -omics technologies and metadata for eukaryotic parasites, target discovery for vaccine development can be expedited. However, a good understanding of the host/vector/pathogen interface is needed to understand the underlying biological, biochemical and immunological components that will confer a protective response in the host animal. Therefore, systems biology is rapidly coming of age in the pursuit of effective parasite vaccines. Despite the difficulties, a number of approaches have been developed and applied to parasitic helminths and arthropods. This review will focus on key aspects of vaccine development that require attention in the battle against these metazoan parasites, as well as successes in the field of vaccine development for helminthiases and ectoparasites. Lastly, we propose future direction of applying successes in pursuit of next generation vaccines.
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Affiliation(s)
- Christian Stutzer
- Tick Vaccine Group, Department of Genetics, University of Pretoria, Pretoria, South Africa
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15
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Sun BL, Wang LH, Yang T, Sun JY, Mao LL, Yang MF, Yuan H, Colvin RA, Yang XY. Lymphatic drainage system of the brain: A novel target for intervention of neurological diseases. Prog Neurobiol 2017; 163-164:118-143. [PMID: 28903061 DOI: 10.1016/j.pneurobio.2017.08.007] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 08/11/2017] [Accepted: 08/31/2017] [Indexed: 12/20/2022]
Abstract
The belief that the vertebrate brain functions normally without classical lymphatic drainage vessels has been held for many decades. On the contrary, new findings show that functional lymphatic drainage does exist in the brain. The brain lymphatic drainage system is composed of basement membrane-based perivascular pathway, a brain-wide glymphatic pathway, and cerebrospinal fluid (CSF) drainage routes including sinus-associated meningeal lymphatic vessels and olfactory/cervical lymphatic routes. The brain lymphatic systems function physiological as a route of drainage for interstitial fluid (ISF) from brain parenchyma to nearby lymph nodes. Brain lymphatic drainage helps maintain water and ion balance of the ISF, waste clearance, and reabsorption of macromolecular solutes. A second physiological function includes communication with the immune system modulating immune surveillance and responses of the brain. These physiological functions are influenced by aging, genetic phenotypes, sleep-wake cycle, and body posture. The impairment and dysfunction of the brain lymphatic system has crucial roles in age-related changes of brain function and the pathogenesis of neurovascular, neurodegenerative, and neuroinflammatory diseases, as well as brain injury and tumors. In this review, we summarize the key component elements (regions, cells, and water transporters) of the brain lymphatic system and their regulators as potential therapeutic targets in the treatment of neurologic diseases and their resulting complications. Finally, we highlight the clinical importance of ependymal route-based targeted gene therapy and intranasal drug administration in the brain by taking advantage of the unique role played by brain lymphatic pathways in the regulation of CSF flow and ISF/CSF exchange.
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Affiliation(s)
- Bao-Liang Sun
- Key Laboratory of Cerebral Microcirculation in Universities of Shandong (Taishan Medical University), Department of Neurology, Affiliated Hospital of Taishan Medical University, Tai'an, Shandong 271000, China.
| | - Li-Hua Wang
- Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, China
| | - Tuo Yang
- Center of Cerebrovascular Disease Research, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Jing-Yi Sun
- Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Gangwon 220-701, Republic of Korea
| | - Lei-Lei Mao
- Key Laboratory of Cerebral Microcirculation in Universities of Shandong (Taishan Medical University), Department of Neurology, Affiliated Hospital of Taishan Medical University, Tai'an, Shandong 271000, China
| | - Ming-Feng Yang
- Key Laboratory of Cerebral Microcirculation in Universities of Shandong (Taishan Medical University), Department of Neurology, Affiliated Hospital of Taishan Medical University, Tai'an, Shandong 271000, China
| | - Hui Yuan
- Key Laboratory of Cerebral Microcirculation in Universities of Shandong (Taishan Medical University), Department of Neurology, Affiliated Hospital of Taishan Medical University, Tai'an, Shandong 271000, China
| | - Robert A Colvin
- Department of Biological Sciences, Interdisciplinary Graduate Program in Molecular and Cellular Biology, Neuroscience Program, Ohio University, Athens, OH 45701, USA
| | - Xiao-Yi Yang
- Key Laboratory of Cerebral Microcirculation in Universities of Shandong (Taishan Medical University), Department of Neurology, Affiliated Hospital of Taishan Medical University, Tai'an, Shandong 271000, China.
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16
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Kuo R, Saito E, Miller SD, Shea LD. Peptide-Conjugated Nanoparticles Reduce Positive Co-stimulatory Expression and T Cell Activity to Induce Tolerance. Mol Ther 2017; 25:1676-1685. [PMID: 28408181 PMCID: PMC5498812 DOI: 10.1016/j.ymthe.2017.03.032] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 03/21/2017] [Accepted: 03/22/2017] [Indexed: 12/11/2022] Open
Abstract
Targeted approaches to treat autoimmune diseases would improve upon current therapies that broadly suppress the immune system and lead to detrimental side effects. Antigen-specific tolerance was induced using poly(lactide-co-glycolide) nanoparticles conjugated with disease-relevant antigen to treat a model of multiple sclerosis. Increasing the nanoparticle dose and amount of conjugated antigen both resulted in more durable immune tolerance. To identify active tolerance mechanisms, we investigated downstream cellular and molecular events following nanoparticle internalization by antigen-presenting cells. The initial cell response to nanoparticles indicated suppression of inflammatory signaling pathways. Direct and functional measurement of surface MHC-restricted antigen showed positive correlation with both increasing particle dose from 1 to 100 μg/mL and increasing peptide conjugation by 2-fold. Co-stimulatory analysis of cells expressing MHC-restricted antigen revealed most significant decreases in positive co-stimulatory molecules (CD86, CD80, and CD40) following high doses of nanoparticles with higher peptide conjugation, whereas expression of a negative co-stimulatory molecule (PD-L1) remained high. T cells isolated from mice immunized against myelin proteolipid protein (PLP139-151) were co-cultured with antigen-presenting cells administered PLP139-151-conjugated nanoparticles, which resulted in reduced T cell proliferation, increased T cell apoptosis, and a stronger anti-inflammatory response. These findings indicate several potential mechanisms used by peptide-conjugated nanoparticles to induce antigen-specific tolerance.
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MESH Headings
- Animals
- Antigen-Presenting Cells/drug effects
- Antigen-Presenting Cells/immunology
- Antigen-Presenting Cells/pathology
- Antigens/chemistry
- Antigens/immunology
- Antigens/pharmacology
- B7-1 Antigen/genetics
- B7-1 Antigen/immunology
- B7-2 Antigen/genetics
- B7-2 Antigen/immunology
- CD40 Antigens/genetics
- CD40 Antigens/immunology
- Delayed-Action Preparations/administration & dosage
- Delayed-Action Preparations/chemistry
- Encephalomyelitis, Autoimmune, Experimental/genetics
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Encephalomyelitis, Autoimmune, Experimental/therapy
- Female
- Gene Expression
- Immune Tolerance/drug effects
- Immunoconjugates/chemistry
- Immunoconjugates/metabolism
- Immunoconjugates/pharmacology
- Mice
- Mice, Inbred C57BL
- Myelin Proteolipid Protein/chemistry
- Myelin Proteolipid Protein/immunology
- Myelin Proteolipid Protein/pharmacology
- Nanoparticles/administration & dosage
- Nanoparticles/chemistry
- Ovalbumin/chemistry
- Ovalbumin/immunology
- Ovalbumin/pharmacology
- Particle Size
- Polyglactin 910/chemistry
- Polyglactin 910/metabolism
- Primary Cell Culture
- Spleen/drug effects
- Spleen/immunology
- Spleen/pathology
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/pathology
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Affiliation(s)
- Robert Kuo
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Eiji Saito
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Stephen D Miller
- Department of Microbiology-Immunology, Northwestern University, Chicago, IL 60611, USA
| | - Lonnie D Shea
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA; Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
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17
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Zhou Y, Hu Z, Cao S, Yan B, Qian J, Zhong H. Concomitant Mycobacterium tuberculosis infection promotes lung tumor growth through enhancing Treg development. Oncol Rep 2017. [PMID: 28627635 PMCID: PMC5561997 DOI: 10.3892/or.2017.5733] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Lung cancer is the most common malignancy in humans. An increased population of CD4+Foxp3+ regulatory T cells (Tregs) in the tumor-associated microenvironment plays an important role in cancer immune evasion. The exact role and the involved mechanisms of concomitant H37Rv infection in non-small cell lung cancer (NSCLC) development are still not clear. Here, we showed that H37Rv infection promoted NSCLC cell growth with a higher percentage of Tregs found in draining lymph nodes. We also determined in vitro that H37Rv infection induced macrophage maturation and PD-L1 expression, which promoted Treg proportion, with enhanced proliferation suppression function. Mechanism analysis revealed that AKT-mTORC1 signal was important for PD-L1 expression induced by H37Rv infection. Suppressing of AKT-mTORC1 signal by rapamycin or raptor deficiency showed decreased PD-L1 levels which further reduced Treg proportion in a co-culture system. Finally, tumor-bearing mice injected with H37Rv plus rapamycin enhance the immune response of lung cancer compared with injected with H37Rv alone. This study demonstrated that concomitant H37Rv infection promote NSCLC tumor immune eacape through enhancing Treg proportion.
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Affiliation(s)
- Yan Zhou
- Department of Pulmonary Disease, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
| | - Zhangguo Hu
- Department of Pulmonary Disease, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
| | - Shuhui Cao
- Department of Pulmonary Disease, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
| | - Bo Yan
- Department of Pulmonary Disease, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
| | - Jialin Qian
- Department of Respiration Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
| | - Hua Zhong
- Department of Pulmonary Disease, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
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18
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Saini A, Mahajan S, Gupta P. Nuclear receptor expression atlas in BMDCs: Nr4a2 restricts immunogenicity of BMDCs and impedes EAE. Eur J Immunol 2016; 46:1842-53. [PMID: 27184189 DOI: 10.1002/eji.201546229] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 04/19/2016] [Accepted: 05/12/2016] [Indexed: 01/25/2023]
Abstract
The nuclear receptor (NR) superfamily of transcription factors regulates various key aspects of physiological processes; however, their role(s) in immune cells' function are just beginning to unravel. Although few NRs have been shown to be critical for dendritic cell (DC) function, a lack of knowledge about their complete representation in DCs has limited the ability to harness their full potential. Here, we performed a comprehensive NR expression profiling and identified the key members of NR superfamily being expressed in immature, immunogenic, and tolerogenic DCs. Comparative analysis revealed discrete changes in the expression of various NRs among the studied DC subtypes, indicating a likely role in the modulation of DC functionality. Next, we characterized Nr4a2, a member of orphan NR family, and found that it suppresses the activation of bone marrow derived dendritic cells triggered by LPS. Overexpression and knockdown of Nr4a2 demonstrated that Nr4a2 orchestrates the expression of immunoregulatory genes, hence inducing a tolerogenic phenotype in bone marrow derived dendritic cells. Furthermore, we also found that Nr4a2 provides protection from EAE by promoting an increase in Treg cells, while limiting effector T cells. Our findings suggest a previously unidentified role for Nr4a2 as a regulator of DC tolerogenicity and demonstrate its potential as therapeutic target in DC-associated pathophysiologies.
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Affiliation(s)
- Ankita Saini
- Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh, 160036, India
| | - Sahil Mahajan
- Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh, 160036, India.,Department of Orthopedics, Washington University School of Medicine, St. Louis, MO, USA
| | - Pawan Gupta
- Institute of Microbial Technology, Council of Scientific and Industrial Research, Chandigarh, 160036, India
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19
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Dang AK, Tesfagiorgis Y, Jain RW, Craig HC, Kerfoot SM. Meningeal Infiltration of the Spinal Cord by Non-Classically Activated B Cells is Associated with Chronic Disease Course in a Spontaneous B Cell-Dependent Model of CNS Autoimmune Disease. Front Immunol 2015; 6:470. [PMID: 26441975 PMCID: PMC4584934 DOI: 10.3389/fimmu.2015.00470] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 08/31/2015] [Indexed: 12/01/2022] Open
Abstract
We characterized B cell infiltration of the spinal cord in a B cell-dependent spontaneous model of central nervous system (CNS) autoimmunity that develops in a proportion of mice with mutant T and B cell receptors specific for myelin oligodendrocyte glycoprotein. We found that, while males are more likely to develop disease, females are more likely to have a chronic rather than monophasic disease course. B cell infiltration of the spinal cord was investigated by histology and FACs. CD4+ T cell infiltration was pervasive throughout the white and in some cases gray matter. B cells were almost exclusively restricted to the meninges, often in clusters reminiscent of those described in human multiple sclerosis. These clusters were typically found adjacent to white matter lesions and their presence was associated with a chronic disease course. Extensive investigation of these clusters by histology did not identify features of lymphoid follicles, including organization of T and B cells into separate zones, CD35+ follicular dendritic cells, or germinal centers. The majority of cluster B cells were IgD+ with little evidence of class switch. Consistent with this, B cells isolated from the spinal cord were of the naïve/memory CD38hi CD95lo phenotype. Nevertheless, they were CD62Llo and CD80hi compared to lymph node B cells suggesting that they were at least partly activated and primed to present antigen. Therefore, if meningeal B cells contribute to CNS pathology in autoimmunity, follicular differentiation is not necessary for the pathogenic mechanism.
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Affiliation(s)
- Amy K Dang
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, Western University Canada , London, ON , Canada
| | - Yodit Tesfagiorgis
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, Western University Canada , London, ON , Canada
| | - Rajiv W Jain
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, Western University Canada , London, ON , Canada
| | - Heather C Craig
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, Western University Canada , London, ON , Canada
| | - Steven M Kerfoot
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, Western University Canada , London, ON , Canada
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20
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IFN-β inhibits T cells accumulation in the central nervous system by reducing the expression and activity of chemokines in experimental autoimmune encephalomyelitis. Mol Immunol 2014; 64:152-62. [PMID: 25433436 DOI: 10.1016/j.molimm.2014.11.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 11/10/2014] [Accepted: 11/11/2014] [Indexed: 11/21/2022]
Abstract
Multiple sclerosis and its animal model, experimental autoimmune encephalomyelitis (EAE), are chronic neuroinflammatory autoimmune diseases characterized by axonal loss, demyelination and neurodegeneration of the central nervous system (CNS). Overactivation of CD4(+)T cells, especially the Th1 and Th17 subsets, is thought to play a causal role in this disease. In this study, we investigated the immunomodulatory effects of IFN-β treatment in EAE. IFN-β significantly inhibits disease severity, and decreases levels of CCR2, CCR4, CCR5, CCR6 and CXCR3 in the CNS. This was associated with fewer Th1/Th17 cells expressing these chemokine receptors. Furthermore, levels of their corresponding ligands CCL2, CCL3, CCL4, CCL5, CCL20, CCL22 and CXCL10 were also reduced, coinciding with reduced CNS inflammation and demyelination. Chemokine expression significantly correlated with disease severity. Furthermore, we demonstrate that IFN-β reduces CCL2/CCL5 induced-T cell migration by inhibiting p38-MAPK and ERK1/2 activation. Our results reveal that IFN-β reduces the expression of chemokines and chemokine receptors expressed by encephalitogenic Th1/Th17 cells, thereby decreasing their migration into the CNS.
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21
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Kashi VP, Ortega SB, Karandikar NJ. Neuroantigen-specific autoregulatory CD8+ T cells inhibit autoimmune demyelination through modulation of dendritic cell function. PLoS One 2014; 9:e105763. [PMID: 25144738 PMCID: PMC4140828 DOI: 10.1371/journal.pone.0105763] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 07/24/2014] [Indexed: 01/29/2023] Open
Abstract
Experimental autoimmune encephalomyelitis (EAE) is a well-established murine model of multiple sclerosis, an immune-mediated demyelinating disorder of the central nervous system (CNS). We have previously shown that CNS-specific CD8+ T cells (CNS-CD8+) ameliorate EAE, at least in part through modulation of CNS-specific CD4+ T cell responses. In this study, we show that CNS-CD8+ also modulate the function of CD11c+ dendritic cells (DC), but not other APCs such as CD11b+ monocytes or B220+ B cells. DC from mice receiving either myelin oligodendrocyte glycoprotein-specific CD8+ (MOG-CD8+) or proteolipid protein-specific CD8+ (PLP-CD8+) T cells were rendered inefficient in priming T cell responses from naïve CD4+ T cells (OT-II) or supporting recall responses from CNS-specific CD4+ T cells. CNS-CD8+ did not alter DC subset distribution or MHC class II and CD86 expression, suggesting that DC maturation was not affected. However, the cytokine profile of DC from CNS-CD8+ recipients showed lower IL-12 and higher IL-10 production. These functions were not modulated in the absence of immunization with CD8-cognate antigen, suggesting an antigen-specific mechanism likely requiring CNS-CD8-DC interaction. Interestingly, blockade of IL-10 in vitro rescued CD4+ proliferation and in vivo expression of IL-10 was necessary for the suppression of EAE by MOG-CD8+. These studies demonstrate a complex interplay between CNS-specific CD8+ T cells, DC and pathogenic CD4+ T cells, with important implications for therapeutic interventions in this disease.
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Affiliation(s)
- Venkatesh P. Kashi
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Sterling B. Ortega
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Nitin J. Karandikar
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- * E-mail:
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