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Agarwal G, Patel M. Review on Monoclonal Antibodies (mAbs) as a Therapeutic Approach for Type 1 Diabetes. Curr Diabetes Rev 2024; 20:e310823220578. [PMID: 37653635 DOI: 10.2174/1573399820666230831153249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 06/10/2023] [Accepted: 07/18/2023] [Indexed: 09/02/2023]
Abstract
Monoclonal antibodies have been successfully utilized in a variety of animal models to treat auto-immune illnesses for a long time. Immune system responses will either be less active or more active depending on how the immune system is operating abnormally. Immune system hypoactivity reduces the body's capacity to fight off various invading pathogens, whereas immune system hyperactivity causes the body to attack and kill its own tissues and cells. For maximal patient compliance, we will concentrate on a variety of antibody therapies in this study to treat Type 1 diabetes (an autoimmune condition). T-cells are responsible for the auto-immune condition known as T1D, which causes irregularities in the function of β-cells in the pancreas. As a result, for the treatment and prevention of T1D, immunotherapies that selectively restore continuous beta cellspecific self-tolerance are needed. Utilizing monoclonal antibodies is one way to specifically target immune cell populations responsible for the auto-immune-driven disease (mAb). Numerous mAbs have demonstrated clinical safety and varied degrees of success in modulating autoimmunity, including T1D. A targeted cell population is exhausted by mAb treatments, regardless of antigenic specificity. One drawback of this treatment is the loss of obtained protective immunity. Immune effector cell function is regulated by nondepleting monoclonal antibodies (mAb). The antigenfocused new drug delivery system is made possible by the adaptability of mAbs. For the treatment of T1D and T-cell-mediated autoimmunity, different existing and potential mAb therapy methods are described in this article.
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Affiliation(s)
- Gaurav Agarwal
- Faculty of Pharmacy, Panipat Institute of Engineering and Technology Panipat, Haryana, India
| | - Mayank Patel
- Neuropharmacology division, Department of Pharmacology, ISF College of Pharmacy, Moga, (Pb.) 142001, India
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2
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Ke Q, Kroger CJ, Clark M, Tisch RM. Evolving Antibody Therapies for the Treatment of Type 1 Diabetes. Front Immunol 2021; 11:624568. [PMID: 33679717 PMCID: PMC7930374 DOI: 10.3389/fimmu.2020.624568] [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: 10/31/2020] [Accepted: 12/31/2020] [Indexed: 12/24/2022] Open
Abstract
Type 1 diabetes (T1D) is widely considered to be a T cell driven autoimmune disease resulting in reduced insulin production due to dysfunction/destruction of pancreatic β cells. Currently, there continues to be a need for immunotherapies that selectively reestablish persistent β cell-specific self-tolerance for the prevention and remission of T1D in the clinic. The utilization of monoclonal antibodies (mAb) is one strategy to target specific immune cell populations inducing autoimmune-driven pathology. Several mAb have proven to be clinically safe and exhibit varying degrees of efficacy in modulating autoimmunity, including T1D. Traditionally, mAb therapies have been used to deplete a targeted cell population regardless of antigenic specificity. However, this treatment strategy can prove detrimental resulting in the loss of acquired protective immunity. Nondepleting mAb have also been applied to modulate the function of immune effector cells. Recent studies have begun to define novel mechanisms associated with mAb-based immunotherapy that alter the function of targeted effector cell pools. These results suggest short course mAb therapies may have persistent effects for regaining and maintaining self-tolerance. Furthermore, the flexibility to manipulate mAb properties permits the development of novel strategies to target multiple antigens and/or deliver therapeutic drugs by a single mAb molecule. Here, we discuss current and potential future therapeutic mAb treatment strategies for T1D, and T cell-mediated autoimmunity.
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Affiliation(s)
- Qi Ke
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Charles J Kroger
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Matthew Clark
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Roland M Tisch
- Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
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3
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Rao P, Deo D, Marchioni M. Differentiation of Human Deceased Donor, Adipose-Derived, Mesenchymal Stem Cells into Functional Beta Cells. J Stem Cells Regen Med 2021; 16:63-72. [PMID: 33414582 DOI: 10.46582/jsrm.1602010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 10/14/2020] [Indexed: 12/25/2022]
Abstract
There is an emerging need for the rapid generation of functional beta cells that can be used in cell replacement therapy for the treatment of type 1 diabetes (T1D). Differentiation of stem cells into insulin-producing cells provides a promising strategy to restore pancreatic endocrine function. Stem cells can be isolated from various human tissues including adipose tissue (AT). Our study outlines a novel, non-enzymatic process to harvest mesenchymal stem cells (MSC) from research-consented, deceased donor AT. Following their expansion, MSC were characterised morphologically and phenotypically by flow cytometry to establish their use for downstream differentiation studies. MSC were induced to differentiate into insulin-producing beta cells using a step-wise differentiation medium. The differentiation was evaluated by analysing the morphology, dithizone staining, immunocytochemistry, and expression of pancreatic beta cell marker genes. We stimulated the beta cells with different concentrations of glucose and observed a dose-dependent increase in gene expression. In addition, an increase in insulin and c-Peptide secretion as a function of glucose challenge confirmed the functionality of the differentiated beta cells. The differentiation of adipose-derived MSC into beta cells has been well established. However, our data demonstrates, for the first time, that the ready availability and properties of MSC isolated from deceased donor adipose tissue render them well-suited as a source for increased production of functional beta cells. Consequently, these cells can be a promising therapeutic approach for cell replacement therapy to treat patients with T1D.
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Affiliation(s)
- Prakash Rao
- Personalized Transplant Medicine Institute at NJ Sharing Network, New Providence, NJ, USA
| | - Dayanand Deo
- Personalized Transplant Medicine Institute at NJ Sharing Network, New Providence, NJ, USA
| | - Misty Marchioni
- Personalized Transplant Medicine Institute at NJ Sharing Network, New Providence, NJ, USA
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4
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Spears E, Serafimidis I, Powers AC, Gavalas A. Debates in Pancreatic Beta Cell Biology: Proliferation Versus Progenitor Differentiation and Transdifferentiation in Restoring β Cell Mass. Front Endocrinol (Lausanne) 2021; 12:722250. [PMID: 34421829 PMCID: PMC8378310 DOI: 10.3389/fendo.2021.722250] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/14/2021] [Indexed: 12/12/2022] Open
Abstract
In all forms of diabetes, β cell mass or function is reduced and therefore the capacity of the pancreatic cells for regeneration or replenishment is a critical need. Diverse lines of research have shown the capacity of endocrine as well as acinar, ductal and centroacinar cells to generate new β cells. Several experimental approaches using injury models, pharmacological or genetic interventions, isolation and in vitro expansion of putative progenitors followed by transplantations or a combination thereof have suggested several pathways for β cell neogenesis or regeneration. The experimental results have also generated controversy related to the limitations and interpretation of the experimental approaches and ultimately their physiological relevance, particularly when considering differences between mouse, the primary animal model, and human. As a result, consensus is lacking regarding the relative importance of islet cell proliferation or progenitor differentiation and transdifferentiation of other pancreatic cell types in generating new β cells. In this review we summarize and evaluate recent experimental approaches and findings related to islet regeneration and address their relevance and potential clinical application in the fight against diabetes.
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Affiliation(s)
- Erick Spears
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Ioannis Serafimidis
- Center of Basic Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Alvin C. Powers
- Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, TN, United States
- VA Tennessee Valley Healthcare System, Nashville, TN, United States
- *Correspondence: Anthony Gavalas, ; Alvin C. Powers,
| | - Anthony Gavalas
- Paul Langerhans Institute Dresden (PLID) of Helmholtz Center Munich at the University Clinic Carl Gustav Carus of TU Dresden, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- German Centre for Diabetes Research (DZD), Neuherberg, Germany
- *Correspondence: Anthony Gavalas, ; Alvin C. Powers,
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5
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Naderi R, Shirpoor A, Samadi M, Pourheydar B, Moslehi A. Tropisetron attenuates pancreas apoptosis in the STZ-induced diabetic rats: involvement of SIRT1/NF-κB signaling. Pharmacol Rep 2020; 72:1657-1665. [PMID: 32725585 DOI: 10.1007/s43440-020-00146-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Diabetes mellitus (DM) is one of the most common diseases in the worldwide. Type 1 diabetes mellitus (T1DM) is characterized by insulin deficiency and beta cells apoptosis. Tropisetron as a 5-HT3 receptor antagonist has positive effects on the inflammation, apoptosis and glucose lowering. The aim of this study was to investigate the effect of tropisetron on β-cells apoptosis and its possible pathways. METHODS Animals were divided into five equal groups: the control, tropisetron, diabetes, tropisetron-DM and glibenclamide-DM (seven in each group). Tropisetron and glibenclamide were administrated for 2 weeks after type 1 diabetes induction. Real-time PCR, western blot analysis and TUNEL assay were performed. RESULTS We found that tropisetron decreased blood glucose and increased insulin secretion. Protein expression of NF-κB was downregulated, while protein expression of SIRT1 upregulated after tropisetron treatment. Moreover, Bax/Bcl2 ratio decreased in tropisetron-DM group and finally, apoptosis improved in pancreas tissue. CONCLUSIONS It seems that tropisetron administration improves STZ-induced apoptosis and diabetes in the animals. This effect might be resulted from involvement in NF-κB/ SIRT1 pathway.
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Affiliation(s)
- Roya Naderi
- Nephrology and Kidney Transplant Research Center, Urmia University of Medical Sciences, Urmia, Iran.,Department of Physiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Alireza Shirpoor
- Nephrology and Kidney Transplant Research Center, Urmia University of Medical Sciences, Urmia, Iran.,Department of Physiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Mahrokh Samadi
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran
| | - Bagher Pourheydar
- Neurophysiology Research Center, Urmia University of Medical Sciences, Urmia, Iran.,Department of Anatomical Sciences, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Azam Moslehi
- Cellular and Molecular Research Center, Qom University of Medical Sciences, Qom, Iran.
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6
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Zhang C, Peng SY, Hong S, Chen QW, Zeng X, Rong L, Zhong ZL, Zhang XZ. Biomimetic carbon monoxide nanogenerator ameliorates streptozotocin induced type 1 diabetes in mice. Biomaterials 2020; 245:119986. [DOI: 10.1016/j.biomaterials.2020.119986] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 03/17/2020] [Accepted: 03/17/2020] [Indexed: 12/29/2022]
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7
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Naderi R, Shirpoor A, Samadi M, Pourheydar B, Moslehi A. Tropisetron improves pancreas function and increases insulin synthesis and secretion in the STZ-induced diabetic rats: involvement of UCP2/ZnT8 pathway. ACTA ACUST UNITED AC 2020; 72:1082-1091. [PMID: 32349166 DOI: 10.1111/jphp.13278] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 03/21/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Diabetes mellitus is one of the most common metabolic diseases. Tropisetron, as a 5-HT3 receptor antagonist, has a considerable role in the inflammation and oxidative stress lowering. This study aimed to investigate the effect of this 5-HT3 receptor antagonist on insulin secretion in male diabetic rats and the possible mechanisms. METHODS Animals were divided into five equal groups; the control, tropisetron, diabetes, tropisetron-diabetes and glibenclamide-diabetes (7 in each group). Tropisetron and glibenclamide were administrated for 2 weeks after inducing type 1 diabetes. KEY FINDINGS We demonstrated that insulin secretion improved robustly in diabetes-tropisetron compared with the diabetic group. Oxidative stress biomarkers were lower in a diabetes-tropisetron group than in diabetic rats. Simultaneously, tropisetron administration promoted the expression of ZnT8 and GLUT2 and also beta-cell mass in pancreatic tissue, while the expression of uncoupling protein 2 (UCP2) was restrained. The histological evaluation confirmed our results. These effects were equipotent with glibenclamide, indicating that tropisetron can protect islets from the abnormal insulin secretion and morphological changes induced by type 1 diabetes. CONCLUSIONS This effect might be partly related to the modulated UCP2/ZnT8 signal pathway and improved oxidative stress-induced damage.
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Affiliation(s)
- Roya Naderi
- Nephrology and Kidney Transplant Research Center, Urmia University of Medical Sciences, Urmia, Iran.,Department of Physiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Alireza Shirpoor
- Nephrology and Kidney Transplant Research Center, Urmia University of Medical Sciences, Urmia, Iran.,Department of Physiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Mahrokh Samadi
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran
| | - Bagher Pourheydar
- Neurophysiology Research Center, Urmia University of Medical Sciences, Urmia, Iran.,Department of Anatomical Sciences, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Azam Moslehi
- Cellular & Molecular Research Center, Qom University of Medical Sciences, Qom, Iran
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8
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Kwon JE, Lee SY, Seo HB, Moon YM, Ryu JG, Jung KA, Jhun JY, Park JS, Hwang SS, Kim JM, Lee GR, Park SH, Cho ML. YinYang1 deficiency ameliorates joint inflammation in a murine model of rheumatoid arthritis by modulating Th17 cell activation. Immunol Lett 2018; 197:63-69. [DOI: 10.1016/j.imlet.2018.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 03/04/2018] [Accepted: 03/10/2018] [Indexed: 12/11/2022]
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9
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Yuan X, Wang E, Xiao X, Wang J, Yang X, Yang P, Li G, Liu Z. The role of IL-25 in the reduction of oxidative stress and the apoptosis of airway epithelial cells with specific immunotherapy in an asthma mouse model. Am J Transl Res 2017; 9:4137-4148. [PMID: 28979688 PMCID: PMC5622257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 08/09/2017] [Indexed: 06/07/2023]
Abstract
UNLABELLED Oxidative stress and cell apoptosis play important roles in the pathogenesis of asthma. Specific immunotherapy (SIT) is the only curative approach for asthma and is effective at decreasing asthmatic oxidation and cell apoptosis, but the mechanisms remain unclear. In this study, by using in vivo and in vitro models, we indirectly demonstrated that SIT alleviated the apoptosis and oxidative stress of bronchial epithelial cells in an asthma model through regulating interleukin (IL)-25. Female BALB/c mice were used for an asthma model induced by exposure to house dust mite (HDM) extracts as allergens. Prior to the challenge, the mice were either given the SIT vaccine or N-Acetyl-L-cysteine (NAC). RESULTS Compared with that in asthma models, SIT administration decreased (1) airway hyper-responsiveness; (2) the production of cytokines, including IL-4, IL-5, IL-13, and IL-25, as well as serum HDM-specific IgE and IgG1, as shown by ELISA; and (3) lipid oxidative species, such as reactive oxidative species (ROS) and malondialdehyde (MDA), in the lung tissue. Moreover, TUNEL staining showed that SIT alleviated pulmonary cell apoptosis. In vitro, flow cytometry showed that human recombinant IL-25 (rIL-25) led to increased cell apoptosis and ROS in the human epithelial cell line 16HBE in a dose and time-dependent fashion. In conclusion, in vivo, SIT reduced asthmatic Th2 cytokine levels and the production of IL-25 and alleviated oxidative stress and cell apoptosis in the lung tissue. In vitro, IL-25 increased the number of apoptotic cells and the production of ROS in16HBE cells.
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Affiliation(s)
- Xiefang Yuan
- Inflammation & Allergic Disease Lab, Affiliated Hospital of Southwest Medical CollegeLuzhou 646000, Sichuan, China
| | - Eryi Wang
- Institute of Allergy & Immunology, Shenzhen UniversityShenzhen 518060, China
| | - Xiaojun Xiao
- Institute of Allergy & Immunology, Shenzhen UniversityShenzhen 518060, China
| | - Junyi Wang
- Department of Respiratory Disease, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong UniversityChengdu 610031, China
| | - Xiaomeng Yang
- Institute of Allergy & Immunology, Shenzhen UniversityShenzhen 518060, China
| | - Pingchang Yang
- Institute of Allergy & Immunology, Shenzhen UniversityShenzhen 518060, China
| | - Guoping Li
- Inflammation & Allergic Disease Lab, Affiliated Hospital of Southwest Medical CollegeLuzhou 646000, Sichuan, China
- Department of Respiratory Disease, The Third People’s Hospital of Chengdu, Affiliated Hospital of Southwest Jiaotong UniversityChengdu 610031, China
| | - Zhigang Liu
- Institute of Allergy & Immunology, Shenzhen UniversityShenzhen 518060, China
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10
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Huang F, Cheng H, Zhang YT, Ju YH, Li YN. Early Postnatal Exposure to Cigarette Smoke Leads to Later Airway Inflammation in Asthmatic Mice. PLoS One 2017; 12:e0171021. [PMID: 28135326 PMCID: PMC5279757 DOI: 10.1371/journal.pone.0171021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 01/13/2017] [Indexed: 11/24/2022] Open
Abstract
Background and objective Asthma is one of the most common airway inflammatory diseases. In most cases, asthma development is related to ubiquitous harmful environmental exposure factors in early-life. Previous studies have indicated that smoking can promote asthma development and increase the difficulty of asthma control. The aim of this study was to determine the effects of early-life CS exposure on ovalbumin (OVA)-sensitized asthmatic mice. Methods Pathological and immunological functions were analyzed in an adult asthma mice model in which mice were sensitized with OVA combined with early-life CS exposure. Results Mice exposed to CS for only 5 weeks demonstrated significantly reduced pulmonary compliance, increased airway inflammation, and augmented cellular and humoral immune responses. In addition, CS inhalation was sufficient to facilitate OVA sensitization and challenge asthmatic development. Meanwhile, CS exposure amplified regulatory T cell-mediated immunity inhibition, but still did not offset the increased effector T cell-mediated inflammatory response. Conclusion Early-life CS exposure is significantly associated with later pulmonary injury and aggravation of T-cell immunologic derangement in asthmatic mice.
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Affiliation(s)
- Fei Huang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, PR China
| | - Hang Cheng
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, PR China
| | - Yu-Tong Zhang
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, PR China
| | - Yang-Hua Ju
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, PR China
| | - Ya-Nan Li
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, PR China.,Department of Molecular Biology, Basic Medical College of Jilin University, Changchun, PR China
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11
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Artemisinin analogue SM934 attenuate collagen-induced arthritis by suppressing T follicular helper cells and T helper 17 cells. Sci Rep 2016; 6:38115. [PMID: 27897259 PMCID: PMC5126690 DOI: 10.1038/srep38115] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 11/04/2016] [Indexed: 12/20/2022] Open
Abstract
SM934 is an artemisinin analogue with immunosuppressive properties and potent therapeutic activity against lupus-like diseases in autoimmune mice. In this report, the therapeutic efficacy and underlying mechanisms of SM934 on rheumatoid arthritis (RA) was investigated using collagen-induced arthritis (CIA) in DBA/1J mice. We demonstrated that SM934 treatment alleviate the severity of arthritis in CIA mice with established manifestations. The therapeutic benefits were associated with ameliorated joint swelling and reduced extent of bone erosion and destruction. Further, administration of SM934 diminished the development of T follicular helper (Tfh) cells and Th17 cells and suppressed the production of pathogenic antibodies, without altering the proportion of germinal center B cells. Ex vivo, SM934 treatment inhibited the bovine type II collagen (CII) induced proliferation and inflammatory cytokines secretion of CII -reactive T cells. In vitro, SM934 impeded the polarization of naïve CD4+ T cells into Tfh cells and the expression of its transcript factor Bcl-6. Moreover, SM934 decreased the IL-21-producing CD4+ T cells and dampened the IL-21 downstream signaling through STAT3. These finding offered the convincing evidence that artemisinin derivative might attenuate RA by simultaneously interfering with the generation of Tfh cells and Th17 cells as well as the subsequent antibody-mediated immune responses.
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12
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Wang F, Wang H, Shen YD, Li YJ, Dong JX, Xu ZL, Yang JY, Sun YM, Xiao ZL. Bispecific Monoclonal Antibody-Based Multianalyte ELISA for Furaltadone Metabolite, Malachite Green, and Leucomalachite Green in Aquatic Products. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:8054-8061. [PMID: 27706938 DOI: 10.1021/acs.jafc.6b03233] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A new multianalyte immunoassay was designed to screen furaltadone metabolite 5-morpholinomethyl-3-amino-2-oxazolidone (AMOZ), malachite green (MG), and leucomalachite green (LMG) in aquatic products using a bispecific monoclonal antibody (BsMAb). Gradient drug mutagenesis methods were separately used to prepare an anti-3-nitrobenzaldehyde-derivatized AMOZ (3-NPAMOZ) hybridoma cell line that was hypoxanthine-guanine-phosphoribosyltransferase (HGRPT) deficient and an anti-LMG hybridoma cell line that was thymidine kinase (TK) deficient. BsMAb recognizing 3-NPAMOZ and LMG was generated using hybrid-hybridomas of HGRPT and TK deficient cell lines. For AMOZ and LMG, respectively, the BsMAb-based indirect competitive ELSIA (ic-ELISA) values of 1.7 ng/mL and 45.3 ng/mL and detection limits of 0.2 ng/mL and 4.8 ng/mL. To establish the ic-ELISA, 3-NPAMOZ derivatized from AMOZ with 3-nitrobenzaldehyde and LMG reduced from MG by potassium borohydride was recognized by BsMAb. Recoveries of AMOZ, MG, and LMG in aquatic products were satisfactory and correlated with HPLC analysis. Thus, the multianalyte ic-ELISA is suitable for rapid quantification of AMOZ, MG, and LMG in aquatic products.
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Affiliation(s)
- Feng Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University , Guangzhou 510642, China
| | - Hong Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University , Guangzhou 510642, China
| | - Yu-Dong Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University , Guangzhou 510642, China
| | - Yong-Jun Li
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University , Guangzhou 510642, China
- Zhongshan Quality Supervision & Inspection Institute of Agricultural Products , Zhongshan 528403, China
| | - Jie-Xian Dong
- Department of Entomology and Nematology and UCD Comprehensive Cancer Center, University of California , Davis, California 95616, United States
| | - Zhen-Lin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University , Guangzhou 510642, China
| | - Jin-Yi Yang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University , Guangzhou 510642, China
| | - Yuan-Ming Sun
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University , Guangzhou 510642, China
| | - Zhi-Li Xiao
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University , Guangzhou 510642, China
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13
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PTEN ameliorates autoimmune arthritis through down-regulating STAT3 activation with reciprocal balance of Th17 and Tregs. Sci Rep 2016; 6:34617. [PMID: 27708408 PMCID: PMC5052580 DOI: 10.1038/srep34617] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 09/08/2016] [Indexed: 12/22/2022] Open
Abstract
PTEN is a tyrosine phosphatase with significant function in inhibiting STAT3 activation. Recently, inactivation of STAT3 has been demonstrated as a therapeutic candidate for autoimmune arthritis. The expression of PTEN controlled by p53 regulates autoimmune arthritis through modulating the balance between Th17 and Treg. We hypothesized that PTEN regulated by p53 might reduce CIA severity and inflammatory response via inhibiting STAT3 activation. Our results revealed that PTEN could ameliorate experimental autoimmune arthritis by reducing STAT3 activity and Th17 differentiation. Systemic infusion of PTEN overexpression downregulated CIA severity. In addition, PTEN overexpression decreased the activation of T cells and modulated reciprocal differentiation of Th17 and Treg cells. We observed that PTEN expression downregulated by p53 deficiency induced the activation of STAT3. Loss of p53 exacerbated autoimmune arthritis and dysregulated the population of Th17 and Treg. These data suggest that induction of STAT3-modulatory activity of PTEN may be a therapeutic target for rheumatoid arthritis therapy.
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Enhancement of Oral Tolerance Induction in DO11.10 Mice by Lactobacillus gasseri OLL2809 via Increase of Effector Regulatory T Cells. PLoS One 2016; 11:e0158643. [PMID: 27472281 PMCID: PMC4966961 DOI: 10.1371/journal.pone.0158643] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 06/20/2016] [Indexed: 12/29/2022] Open
Abstract
Food allergy is a serious problem for infants and young children. Induction of antigen-specific oral tolerance is one therapeutic strategy. Enhancement of oral tolerance induction by diet is a promising strategy to prevent food allergy in infants. Thus, in this study, we evaluate the effect of probiotic Lactobacillus gasseri OLL2809 (LG2809) on oral tolerance induction in a mouse model. The degree of oral tolerance induction was evaluated by measuring the proliferation and level of IL-2 production of splenic CD4+ T cells from DO11.10 mice fed ovalbumin (OVA) alone or OVA with LG2809. Oral administration of LG2809 significantly decreased the rate of proliferation and IL-2 production by CD4+ T cells from OVA-fed mice. LG2809 increased a ratio of CD4+ T-cell population, producing high levels of IL-10 and having strong suppressive activity. Moreover, LG2809 increased a ratio of plasmacytoid dendritic cells (pDCs) among the lamina propria (LP) in small intestine. When used as antigen presenting cells to naïve CD4+ T cells from DO11.10 mice, LP cells from BALB/c mice fed LG2809 induced higher IL-10 production and stronger suppressive activity than those from non-treated mice. These results suggest that oral administration of LG2809 increases the population of pDCs in the LP, resulting in the enhancement of oral tolerance induction by increasing the ratio of effector regulatory T cells. LG2809 could, therefore, act as a potent immunomodulator to prevent food allergies by promoting oral tolerance.
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Hu S, Chen M, Wang Y, Wang Z, Pei Y, Fan R, Liu X, Wang L, Zhou J, Zheng S, Zhang T, Lin Y, Zhang M, Tao R, Zhong J. mTOR Inhibition Attenuates Dextran Sulfate Sodium-Induced Colitis by Suppressing T Cell Proliferation and Balancing TH1/TH17/Treg Profile. PLoS One 2016; 11:e0154564. [PMID: 27128484 PMCID: PMC4851424 DOI: 10.1371/journal.pone.0154564] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 04/17/2016] [Indexed: 02/07/2023] Open
Abstract
It has been established that mammalian target of Rapamycin (mTOR) inhibitors have anti-inflammatory effects in models of experimental colitis. However, the underlying mechanism is largely unknown. In this research, we investigate the anti-inflammatory effects of AZD8055, a potent mTOR inhibitor, on T cell response in dextran sulfate sodium (DSS)-induced colitis in mice, a commonly used animal model of inflammatory bowel diseases (IBD). Severity of colitis is evaluated by changing of body weight, bloody stool, fecal consistency, histology evaluation and cytokine expression. We find that AZD8055 treatment attenuates DSS-induced body weight loss, colon length shortening and pathological damage of the colon. And AZD8055 treatment decreases colonic expression of genes encoding the pro-inflammatory cytokines interferon-γ, interleukin (IL)-17A, IL-1β,IL-6 and tumor necrosis factor(TNF)-a and increases colonic expression of anti-inflammatory cytokines IL-10. We show that AZD8055 treatment decreases the percentages of CD4+ T cells and CD8+ T cells in spleen, lymph nodes and peripheral blood of mice. We also find that AZD8055 treatment significantly reduces the number of T helper 1(TH1) cells and TH17 cells and increases regulatory T (Treg) cells in the lamina propria and mesenteric lymph nodes. Furthermore, we demonstrates that AZD8055 suppresses the proliferation of CD4+ and CD8+ T cells and the differentiation of TH1/TH17 cells and expands Treg cells in vitro. The results suggest that, in experimental colitis, AZD8055 exerts anti-inflammatory effect by regulating T helper cell polarization and proliferation.
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Affiliation(s)
- Shurong Hu
- Department of Gastroenterology, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China
| | - Mengmeng Chen
- Department of Gastroenterology, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China
| | - Yilin Wang
- Department of Surgery, Cancer hospital, Fudan University, Shanghai, PR China
| | - Zhengting Wang
- Department of Gastroenterology, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China
| | - Yaofei Pei
- Department of Surgery, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China
| | - Rong Fan
- Department of Gastroenterology, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China
| | - Xiqiang Liu
- Department of Hepatobiliary-Pancreatic Surgery, Zhejiang Provincial People’s Hospital, Hangzhou, Zhejiang Province, PR China
| | - Lei Wang
- Department of Gastroenterology, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China
| | - Jie Zhou
- Department of Gastroenterology, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China
| | - Sichang Zheng
- Department of Gastroenterology, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China
| | - Tianyu Zhang
- Department of Gastroenterology, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China
| | - Yun Lin
- Department of Gastroenterology, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China
| | - Maochen Zhang
- Department of Gastroenterology, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China
| | - Ran Tao
- Department of Hepatobiliary-Pancreatic Surgery, Zhejiang Provincial People’s Hospital, Hangzhou, Zhejiang Province, PR China
- * E-mail: (JZ); (RT)
| | - Jie Zhong
- Department of Gastroenterology, Ruijin hospital, Shanghai Jiaotong University School of Medicine, Shanghai, PR China
- * E-mail: (JZ); (RT)
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Lee SY, Jung YO, Ryu JG, Oh HJ, Son HJ, Lee SH, Kwon JE, Kim EK, Park MK, Park SH, Kim HY, Cho ML. Epigallocatechin-3-gallate ameliorates autoimmune arthritis by reciprocal regulation of T helper-17 regulatory T cells and inhibition of osteoclastogenesis by inhibiting STAT3 signaling. J Leukoc Biol 2016; 100:559-68. [PMID: 26957211 DOI: 10.1189/jlb.3a0514-261rr] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 02/08/2016] [Indexed: 11/24/2022] Open
Abstract
The green tea polyphenol epigallocatechin-3-gallate is a potent antioxidant. Here, we describe the effects of epigallocatechin-3-gallate on T cell differentiation and osteoclast differentiation in an animal model of arthritis. Mice with collagen-induced arthritis were injected intraperitoneally with epigallocatechin-3-gallate, 3 times/wk after the primary immunization. Surface markers of T helper 17 cells and regulatory T cells were analyzed by flow cytometry. Flow cytometry, Western blotting, and enzyme-linked immunosorbent assays were used to evaluate the effect of epigallocatechin-3-gallate on cell signaling in the collagen-induced arthritis model. Epigallocatechin-3-gallate decreased the arthritis index and showed protective effects against joint destruction in collagen-induced arthritis mice. The expression of cytokines, oxidative stress proteins, and phosphorylated-signal transducer and activator of transcription-3, 705 and 727, were significantly less in mice treated with epigallocatechin-3-gallate than it was in controls. Epigallocatechin-3-gallate reduced the expression of osteoclast markers in vitro and in vivo relative to the control, and the antiosteoclastic activity was observed in epigallocatechin-3-gallate-treated, interferon-γ knockout mice. The proportion of forkhead box protein 3-positive regulatory T cells was increased in the spleens of mice treated with epigallocatechin-3-gallate compared with control mice, whereas the proportion of T helper 17 cells was reduced. In vitro, the expression of nuclear respiratory factor 2, heme oxygenase-1, and extracellular signal-regulated kinase was increased significantly by epigallocatechin-3-gallate. We demonstrated that the administration of epigallocatechin-3-gallate attenuated the symptoms of arthritis, inhibited osteoclastogenesis and T helper 17 cell activation, and increased the number of regulatory T cells. At the molecular level, the antiarthritic effects of epigallocatechin-3-gallate may be due to induction of phosphorylated-extracellular signal-regulated kinase, nuclear respiratory factor 2, and heme oxygenase-1 and inhibition of signal transducer and activator of transcription-3 activation.
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Affiliation(s)
- Seon-Yeong Lee
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea
| | - Young Ok Jung
- Division of Rheumatology, Department of Internal Medicine, Hallym University Kang-Nam Sacred Heart Hospital, Seoul, Korea
| | - Jun-Geol Ryu
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea
| | - Hye-Jwa Oh
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea
| | - Hye-Jin Son
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea
| | - Seung Hoon Lee
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea
| | - Jeong-Eun Kwon
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea
| | - Eun-Kyung Kim
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea
| | - Mi-Kyung Park
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea
| | - Sung-Hwan Park
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea; Center for Rheumatic Disease, Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea; and
| | - Ho-Youn Kim
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea; Center for Rheumatic Disease, Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea; and
| | - Mi-La Cho
- The Rheumatism Research Center, Catholic Research Institute of Medical Science, The Catholic University of Korea, Banpo-dong, Seocho-gu, Seoul, South Korea;
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A herbal formula comprising Rosae Multiflorae Fructus and Lonicerae Japonicae Flos, attenuates collagen-induced arthritis and inhibits TLR4 signalling in rats. Sci Rep 2016; 6:20042. [PMID: 26860973 PMCID: PMC4748217 DOI: 10.1038/srep20042] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 12/23/2015] [Indexed: 12/12/2022] Open
Abstract
RL, a traditional remedy for Rheumatoid arthritis (RA), comprises two edible herbs, Rosae Multiflorae Fructus and Lonicerae Japonicae Flos. We have reported that RL could inhibit the production of inflammatory mediators in immune cells. Here we investigated the effects and the mechanism of action of RL in collagen-induced arthritis (CIA) rats. RL significantly increased food intake and weight gain of CIA rats without any observable adverse effect; ameliorated joint erythema and swelling; inhibited immune cell infiltration, bone erosion and osteophyte formation in joints; reduced joint protein expression levels of TLR4, phospho-TAK1, phospho-NF-κB p65, phospho-c-Jun and phospho-IRF3; lowered levels of inflammatory factors (TNF-α, IL-6, IL-1β, IL-17A and MCP-1 in sera and TNF-α, IL-6, IL-1β and IL-17A in joints); elevated serum IL-10 level; reinvigorated activities of antioxidant SOD, CAT and GSH-Px in the liver and serum; reduced Th17 cell proportions in splenocytes; inhibited splenocyte proliferation and activation; and lowered serum IgG level. In conclusion, RL at nontoxic doses inhibited TLR4 signaling and potently improved clinical conditions of CIA rats. These findings provide further pharmacological justifications for the traditional use of RL in RA management.
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Cong H, Jiang H, Peng J, Cui S, Liu L, Wang J, Zhang X. Change of Th17 Lymphocytes and Treg/Th17 in Typical and Atypical Optic Neuritis. PLoS One 2016; 11:e0146270. [PMID: 26785053 PMCID: PMC4718616 DOI: 10.1371/journal.pone.0146270] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 12/15/2015] [Indexed: 01/08/2023] Open
Abstract
Background Typical and atypical optic neuritis (ON) are two clinical types of autoimmune inflammatory diseases of the optic nerve that causes acute vision loss, and are difficult to distinguish in their early stages. The disturbance in the balance of Th17 and Treg lymphocytes is thought to play an essential role in these autoimmune inflammatory diseases. Objectives To detect the clinical relevance of Th17 and Treg in peripheral blood and the ratio of Treg/Th17 in patients with typical and atypical ON. To determine whether analysis of Th17 and Treg lymphocytes will provides insights into the different disease phenotypes of typical and atypical ON. Methods We studied a consecutive series of patients aged 14–70 years who presented to our neurological department with typical ON (n = 30) or atypical ON (n = 33) within 4 weeks of their acute attacks. Routine clinical tests and ophthalmological examination were performed in all patients. Blood samples were collected from untreated patients and from gender- and age-matched healthy controls (n = 30). The proportion of peripheral blood Th17 cells and Treg cells was determined by flow cytometry. Results Patients with atypical ON had a higher proportion of Th17 cells than patients with typical ON (3.61±1.56 vs 2.55±1.74, P<0.01) or controls (1.45±0.86, P<0.01). The proportion of Th17 cells in patients with typical ON was also markedly higher than in controls (P<0.01). The mean percentage of Treg cells in atypical ON (6.31±2.11) and typical ON (6.80±2.00) were significantly lower when compared to controls (8.29±2.32, both P<0.01). No significant difference in Treg frequency was observed between typical ON and atypical ON (p>0.05). Conclusions The frequency of Th17 cells is higher in atypical ON than typical ON, and patients with atypical ON have a greater imbalance of pro-inflammatory and regulatory cells than patients with typical ON when compared with controls. These changes are indicative of distinct pathological mechanisms and may provide useful information to distinguish typical and atypical ON.
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Affiliation(s)
- Hengri Cong
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Hanqiu Jiang
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Jingting Peng
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Shilei Cui
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Lijuan Liu
- Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Jiawei Wang
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - Xiaojun Zhang
- Department of Neurology, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
- * E-mail:
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19
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Yan C, Zhang BB, Hua H, Li B, Zhang B, Yu Q, Li XY, Liu Y, Pan W, Liu XY, Tang RX, Zheng KY. The Dynamics of Treg/Th17 and the Imbalance of Treg/Th17 in Clonorchis sinensis-Infected Mice. PLoS One 2015; 10:e0143217. [PMID: 26599407 PMCID: PMC4658164 DOI: 10.1371/journal.pone.0143217] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 11/01/2015] [Indexed: 12/27/2022] Open
Abstract
Clonorchiasis, caused by the liver fluke Clonorchis sinensis, is a chronic parasitic infection regulated by T cell subsets. An imbalance of CD4+CD25+ Foxp3+regulatory T (Treg) and interleukin (IL)-17-secreting T cells (Th17) may control inflammation and play an important role in the pathogenesis of immune evasion. In the present study, we assessed the dynamics of Treg/Th17 and determined whether the Treg/Th17 ratio is altered in C. sinensis-infected mice. The results showed that the percentages of splenic Treg cells in CD4+ T cells were suppressed on day 14 post-infection (PI) but increased on day 56 PI, while Th17 cells were increased on day 56 PI compared with normal control (NC) mice. The Treg/Th17 ratio steadily increased from day 28 to day 56 PI. The hepatic levels of their specific transcription factors (Foxp3 for Treg and RORγt for Th17) were increased in C. sinensis-infected mice from day 14 to 56 PI, and significantly higher than those in NC mice. Meanwhile, serum levels of IL-2 and IL-17 were profoundly increased in C. sinensis-infected mice throughout the experiment; while the concentrations of IL-6 and transforming growth factor β1 (TGF-β1) peaked on day 14 PI, but then decreased on day 28 and 56 PI. Our results provide the first evidence of an increased Treg/Th17 ratio in C. sinensis-infected mice, suggesting that a Treg/Th17 imbalance may play a role in disease outcomes of clonorchiasis.
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Affiliation(s)
- Chao Yan
- Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou 221004, Jiangsu Province, China
| | - Bei-Bei Zhang
- Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou 221004, Jiangsu Province, China
| | - Hui Hua
- Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou 221004, Jiangsu Province, China
| | - Bo Li
- Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou 221004, Jiangsu Province, China
| | - Bo Zhang
- Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou 221004, Jiangsu Province, China
| | - Qian Yu
- Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou 221004, Jiangsu Province, China
| | - Xiang-Yang Li
- Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou 221004, Jiangsu Province, China
| | - Ying Liu
- Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou 221004, Jiangsu Province, China
| | - Wei Pan
- Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou 221004, Jiangsu Province, China
| | - Xiang-Ye Liu
- Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou 221004, Jiangsu Province, China
| | - Ren-Xian Tang
- Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou 221004, Jiangsu Province, China
- * E-mail: (K-YZ); (R-XT)
| | - Kui-Yang Zheng
- Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical College, Xuzhou 221004, Jiangsu Province, China
- * E-mail: (K-YZ); (R-XT)
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20
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Huang F, Qiao HM, Yin JN, Gao Y, Ju YH, Li YN. Early-Life Exposure to Clostridium leptum Causes Pulmonary Immunosuppression. PLoS One 2015; 10:e0141717. [PMID: 26565810 PMCID: PMC4643994 DOI: 10.1371/journal.pone.0141717] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 10/12/2015] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION Low Clostridium leptum levels are a risk factor for the development of asthma. C. leptum deficiency exacerbates asthma; however, the impact of early-life C. leptum exposure on cesarean-delivered mice remains unclear. This study is to determine the effects of early-life C. leptum exposure on asthma development in infant mice. METHODS We exposed infant mice to C. leptum (fed-CL) and then induced asthma using the allergen ovalbumin (OVA). RESULTS Fed-CL increased regulatory T (Treg) cells in cesarean-delivered mice compared with vaginally delivered mice. Compared with OVA-exposed mice, mice exposed to C. leptum + OVA did not develop the typical asthma phenotype, which includes airway hyper-responsiveness, cell infiltration, and T helper cell subset (Th1, Th2, Th9, Th17) inflammation. Early-life C. leptum exposure induced an immunosuppressive environment in the lung concurrent with increased Treg cells, resulting in the inhibition of Th1, Th2, Th9, and Th17 cell responses. CONCLUSION These findings demonstrate a mechanism whereby C. leptum exposure modulates adaptive immunity and leads to failure to develop asthma upon OVA sensitization later in life.
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Affiliation(s)
- Fei Huang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, Jilin, PR China
| | - Hong-mei Qiao
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, PR China
| | - Jia-ning Yin
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, PR China
- Department of Molecular Biology, Basic Medical College of Jilin University, Changchun, Jilin, PR China
| | - Yang Gao
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, PR China
| | - Yang-hua Ju
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, PR China
| | - Ya-nan Li
- Department of Pediatrics, The First Hospital of Jilin University, Changchun, Jilin, PR China
- Department of Molecular Biology, Basic Medical College of Jilin University, Changchun, Jilin, PR China
- * E-mail:
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Smaldini PL, Orsini Delgado ML, Fossati CA, Docena GH. Orally-Induced Intestinal CD4+ CD25+ FoxP3+ Treg Controlled Undesired Responses towards Oral Antigens and Effectively Dampened Food Allergic Reactions. PLoS One 2015; 10:e0141116. [PMID: 26517875 PMCID: PMC4627767 DOI: 10.1371/journal.pone.0141116] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 10/04/2015] [Indexed: 01/25/2023] Open
Abstract
The induction of peripheral tolerance may constitute a disease-modifying treatment for allergic patients. We studied how oral immunotherapy (OIT) with milk proteins controlled allergy in sensitized mice (cholera toxin plus milk proteins) upon exposure to the allergen. Symptoms were alleviated, skin test was negativized, serum specific IgE and IgG1 were abrogated, a substantial reduction in the secretion of IL-5 and IL-13 by antigen-stimulated spleen cells was observed, while IL-13 gene expression in jejunum was down-regulated, and IL-10 and TGF-β were increased. In addition, we observed an induction of CD4+CD25+FoxP3+ cells and IL-10- and TGF-β-producing regulatory T cells in the lamina propria. Finally, transfer experiments confirmed the central role of these cells in tolerance induction. We demonstrated that the oral administration of milk proteins pre- or post-sensitization controlled the Th2-immune response through the elicitation of mucosal IL-10- and TGF-β-producing Tregs that inhibited hypersensitivity symptoms and the allergic response.
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Affiliation(s)
- Paola Lorena Smaldini
- Instituto de Estudios Inmunológicos y Fisiopatológicos-IIFP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y Consejo Nacional de Investigaciones Científicas y Técnicas, La Plata, Argentina
| | - María Lucía Orsini Delgado
- Instituto de Estudios Inmunológicos y Fisiopatológicos-IIFP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y Consejo Nacional de Investigaciones Científicas y Técnicas, La Plata, Argentina
| | - Carlos Alberto Fossati
- Instituto de Estudios Inmunológicos y Fisiopatológicos-IIFP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y Consejo Nacional de Investigaciones Científicas y Técnicas, La Plata, Argentina
| | - Guillermo Horacio Docena
- Instituto de Estudios Inmunológicos y Fisiopatológicos-IIFP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata y Consejo Nacional de Investigaciones Científicas y Técnicas, La Plata, Argentina
- * E-mail:
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22
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Ren JJ, Yu Z, Yang FL, Lv D, Hung S, Zhang J, Lin P, Liu SX, Zhang N, Bachert C. Effects of Bifidobacterium Breve Feeding Strategy and Delivery Modes on Experimental Allergic Rhinitis Mice. PLoS One 2015; 10:e0140018. [PMID: 26445348 PMCID: PMC4596842 DOI: 10.1371/journal.pone.0140018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Accepted: 09/21/2015] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Different delivery modes may affect the susceptibility to allergic diseases. It is still unknown whether early intervention with probiotics would counteract this effect. OBJECTIVES The effect of different delivery modes on immune status and nasal symptoms was investigated on established allergic rhinitis (AR) mouse model. In addition, the immunoregulatory effects and mechanisms of different feeding manners with Bifidobacterium breve(B. breve) were examined. METHODS Live lyophilized B. breve was orally administered to BALB/c mice born via vaginal delivery(VD) or cesarean delivery (CD) for 8 consecutive weeks, after which they were sensitized by ovalbumin(OVA) to establish experimental AR. Nasal symptoms, serum immunoglobulins, cytokines, splenic percentages of CD4(+)CD25(+)Foxp3(+) regulatory T(Treg) cells and nasal eosinophil infiltration were evaluated. RESULTS Compared with VD mice, mice delivered via CD demonstrated more serious nasal symptoms, higher concentrations of OVA-specific immunoglobulin (Ig) E, more nasal eosinophils and lower percentages of splenic CD4(+)CD25(+)Foxp3(+)Treg cells after establishing experimental AR. These parameters were reversed by administering B. breves hortly after birth. However, the effect of B. breve did not differ between different delivery modes. CONCLUSION CD aggravates the nasal symptoms of AR mice compared to VD. This is the first report that oral administration of B. breve shortly after birth can significantly alleviate the symptoms of AR mice born via both deliveries, probably via activation of the regulatory capacity of CD4(+)CD25(+)Foxp3(+)Treg cells.
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Affiliation(s)
- Jian-jun Ren
- Department of Oto-Rhino-Laryngology West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Zhao Yu
- Department of Oto-Rhino-Laryngology West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Feng-Ling Yang
- Department of Oto-Rhino-Laryngology West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Dan Lv
- Department of Oto-Rhino-Laryngology West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Shi Hung
- Department of Oto-Rhino-Laryngology West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Jie Zhang
- Upper Airways Research Laboratory, West China Hospital, Sichuan University, Chengdu, China
| | - Ping Lin
- Upper Airways Research Laboratory, West China Hospital, Sichuan University, Chengdu, China
| | - Shi-Xi Liu
- Department of Oto-Rhino-Laryngology West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Nan Zhang
- Upper Airways Research Laboratory (URL), Department of Oto-Rhino-Laryngology, Ghent University, Ghent, Belgium
| | - Claus Bachert
- Upper Airways Research Laboratory (URL), Department of Oto-Rhino-Laryngology, Ghent University, Ghent, Belgium
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23
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Glenn JD, Smith MD, Kirby LA, Baxi EG, Whartenby KA. Disparate Effects of Mesenchymal Stem Cells in Experimental Autoimmune Encephalomyelitis and Cuprizone-Induced Demyelination. PLoS One 2015; 10:e0139008. [PMID: 26407166 PMCID: PMC4583481 DOI: 10.1371/journal.pone.0139008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 09/07/2015] [Indexed: 01/10/2023] Open
Abstract
Mesenchymal stem cells (MSCs) are pleiotropic cells with potential therapeutic benefits for a wide range of diseases. Because of their immunomodulatory properties they have been utilized to treat autoimmune diseases such as multiple sclerosis (MS), which is characterized by demyelination. The microenvironment surrounding MSCs is thought to affect their differentiation and phenotype, which could in turn affect the efficacy. We thus sought to dissect the potential for differential impact of MSCs on central nervous system (CNS) disease in T cell mediated and non-T cell mediated settings using the MOG35–55 experimental autoimmune encephalomyelitis (EAE) and cuprizone-mediated demyelination models, respectively. As the pathogeneses of MS and EAE are thought to be mediated by IFNγ-producing (TH1) and IL-17A-producing (TH17) effector CD4+ T cells, we investigated the effect of MSCs on the development of these two key pathogenic cell groups. Although MSCs suppressed the activation and effector function of TH17 cells, they did not affect TH1 activation, but enhanced TH1 effector function and ultimately produced no effect on EAE. In the non- T cell mediated cuprizone model of demyelination, MSC administration had a positive effect, with an overall increase in myelin abundance in the brain of MSC-treated mice compared to controls. These results highlight the potential variability of MSCs as a biologic therapeutic tool in the treatment of autoimmune disease and the need for further investigation into the multifaceted functions of MSCs in diverse microenvironments and the mechanisms behind the diversity.
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Affiliation(s)
- Justin D. Glenn
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Matthew D. Smith
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Leslie A. Kirby
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Emily G. Baxi
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Katharine A Whartenby
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- * E-mail:
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24
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Zhao Y, Liu F, Liu Y, Zhou D, Dai Q, Liu S. Anti-Arthritic Effect of Chebulanin on Collagen-Induced Arthritis in Mice. PLoS One 2015; 10:e0139052. [PMID: 26402786 PMCID: PMC4581703 DOI: 10.1371/journal.pone.0139052] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 09/07/2015] [Indexed: 12/31/2022] Open
Abstract
Rheumatoid arthritis is a chronic degenerative autoimmune disease characterized by persistent inflammation of synovial membranes, which leads to cartilage destruction and bone erosion. To date, there are no effective therapies to slow the progress of this degenerative condition. Here, we evaluate the anti-arthritic effect of chebulanin, an abundant anti-inflammatory agent isolated from Terminalia chebula, in collagen induced arthritis in DBA/1 mice by intragastric administration. Arthritic severity was scored by performing histopathological evaluation of the joints and measuring the expression of inflammatory cytokines and relative enzymes by immunohistochemical staining. In parallel, bone destruction and erosion were confirmed by micro-CT. Our data revealed that chebulanin significantly improved the severity of arthritis. Specifically, the histopathological characteristics of the tissues were improved and expression of TNF-α, IL-6, MMP-3 and COX-2 in the paws and joints of the treated mice decreased in a dose-dependent manner compared with control mice. Furthermore, micro-CT analysis revealed that chebulanin induced a dose-dependent reduction in cartilage destruction and bone erosion. Taken together, our findings suggest that chebulanin suppresses the expression of inflammatory mediators and prevents cartilage destruction and bone erosion in mice. Therefore, chebulanin is a strong therapeutic alternative for the treatment of RA.
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Affiliation(s)
- Yinglan Zhao
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Fang Liu
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Yao Liu
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Dan Zhou
- The Traditional Chinese Medicine Hospital of Dianjiang County, Chongqing, China
| | - Qing Dai
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Songqing Liu
- Department of Pharmacy, Southwest Hospital, Third Military Medical University, Chongqing, China
- * E-mail:
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25
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A Multiple Antigenic Peptide Mimicking Peptidoglycan Induced T Cell Responses to Protect Mice from Systemic Infection with Staphylococcus aureus. PLoS One 2015; 10:e0136888. [PMID: 26317210 PMCID: PMC4552945 DOI: 10.1371/journal.pone.0136888] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 08/10/2015] [Indexed: 12/11/2022] Open
Abstract
Due to the enormous capacity of Staphylococcus aureus to acquire antibiotic resistance, it becomes imperative to develop vaccines for decreasing the risk of its life-threatening infections. Peptidoglycan (PGN) is a conserved and major component of S. aureus cell wall. However, it has not been used as a vaccine candidate since it is a thymus-independent antigen. In this study, we synthesized a multiple antigenic peptide, named MAP27, which comprised four copies of a peptide that mimics the epitope of PGN. After immunization with MAP27 five times and boosting with heat-inactivated bacterium one time, anti-MAP27 serum bound directly to S. aureus or PGN. Immunization with MAP27 decreased the bacterial burden in organs of BALB/c mice and significantly prolonged their survival time after S. aureus lethal-challenge. The percentage of IFN-γ+CD3+ T cells and IL-17+CD4+ T cells in spleen, as well as the levels of IFN-γ, IL-17A/F and CCL3 in spleen and lung, significantly increased in the MAP27-immunized mice after infection. Moreover, in vitro incubation of heat-inactivated S. aureus with splenocytes isolated from MAP27-immunized mice stimulated the production of IFN-γ and IL-17A/F. Our findings demonstrated that MAP27, as a thymus-dependent antigen, is efficient at eliciting T cell-mediated responses to protect mice from S. aureus infection. This study sheds light on a possible strategy to design vaccines against S. aureus.
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26
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Guillou C, Derambure C, Fréret M, Verdet M, Avenel G, Golinski ML, Sabourin JC, Loarer FL, Adriouch S, Boyer O, Lequerré T, Vittecoq O. Prophylactic Injection of Recombinant Alpha-Enolase Reduces Arthritis Severity in the Collagen-Induced Arthritis Mice Model. PLoS One 2015; 10:e0136359. [PMID: 26302382 PMCID: PMC4547710 DOI: 10.1371/journal.pone.0136359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 07/31/2015] [Indexed: 01/13/2023] Open
Abstract
Objective To evaluate the ability of the glycolytic enzyme alpha-enolase (ENO1) or its immunodominant peptide (pEP1) to reduce the severity of CIA in DBA/1 mice when injected in a prophylactic way. Methods Mice were treated with mouse ENO1 or pEP1 one day prior to collagen II immunization. Clinical assessment was evaluated using 4 parameters (global and articular scores, ankle thickness and weight). Titers of serum anti-ENO1, anti-cyclic citrullinated peptides (anti-CCP) and anti-CII (total IgG and IgG1/IgG2a isotypes) antibodies were measured by ELISA at different time-points. Disease activity was assessed by histological analysis of both anterior and hind paws at the end of experimentation. Results Prophylactic injection of 100 μg of ENO1 reduced severity of CIA. Serum levels of anti-CII antibodies were reduced in ENO1-treated mice. Concordantly, ENO1-treated mice joints presented less severe histological signs of arthritis. ENO1 did not induce a shift toward a Th2 response since IgG1/IgG2a ratio of anti-CII antibodies remained unchanged and IL-4 serum levels were similar to those measured in the control group. Conclusions Pre-immunization with ENO1 or its immunodominant peptide pEP1 reduces CIA severity at the clinical, immunological and histological levels. Effects of pEP1 were less pronounced. This immunomodulatory effect is associated with a reduction in anti-CII antibodies production but is not due to a Th1/Th2 shift.
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Affiliation(s)
- Clément Guillou
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Céline Derambure
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Manuel Fréret
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Mathieu Verdet
- Rouen University Hospital, Department of Rheumatology, Rouen, France
| | - Gilles Avenel
- Rouen University Hospital, Department of Rheumatology, Rouen, France
| | - Marie-Laure Golinski
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Jean-Christophe Sabourin
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
- Rouen University Hospital, Department of Pathology, Rouen, France
| | | | - Sahil Adriouch
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Olivier Boyer
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
- Rouen University Hospital, Department of Immunology, Rouen, France
| | - Thierry Lequerré
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
- Rouen University Hospital, Department of Rheumatology, Rouen, France
| | - Olivier Vittecoq
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
- Rouen University Hospital, Department of Rheumatology, Rouen, France
- * E-mail:
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27
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Ishigaki K, Shoda H, Kochi Y, Yasui T, Kadono Y, Tanaka S, Fujio K, Yamamoto K. Quantitative and qualitative characterization of expanded CD4+ T cell clones in rheumatoid arthritis patients. Sci Rep 2015; 5:12937. [PMID: 26245356 PMCID: PMC4542667 DOI: 10.1038/srep12937] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 07/06/2015] [Indexed: 12/04/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune destructive arthritis associated with CD4+ T cell-mediated immunity. Although expanded CD4+ T cell clones (ECs) has already been confirmed, the detailed characteristics of ECs have not been elucidated in RA. Using combination of a single-cell analysis and next-generation sequencing (NGS) in TCR repertoire analysis, we here revealed the detailed nature of ECs by examining peripheral blood (PB) from 5 RA patients and synovium from 1 RA patient. When we intensively investigated the single-cell transcriptome of the most expanded clones in memory CD4+ T cells (memory-mECs) in RA-PB, senescence-related transcripts were up-regulated, indicating circulating ECs were constantly stimulated. Tracking of the transcriptome shift within the same memory-mECs between PB and the synovium revealed the augmentations in senescence-related gene expression and the up-regulation of synovium-homing chemokine receptors in the synovium. Our in-depth characterization of ECs in RA successfully demonstrated the presence of the specific immunological selection pressure, which determines the phenotype of ECs. Moreover, transcriptome tracking added novel aspects to the underlying sequential immune processes. Our approach may provide new insights into the pathophysiology of RA.
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Affiliation(s)
- Kazuyoshi Ishigaki
- Department of Allergy and Rheumatology, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Hirofumi Shoda
- Department of Allergy and Rheumatology, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Yuta Kochi
- Laboratory for Autoimmune Diseases, Center for Integrative Medical Sciences, RIKEN, Yokohama, Japan
| | - Tetsuro Yasui
- Department of Orthopaedic Surgery, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Yuho Kadono
- Department of Orthopaedic Surgery, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Sakae Tanaka
- Department of Orthopaedic Surgery, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Keishi Fujio
- Department of Allergy and Rheumatology, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Kazuhiko Yamamoto
- Department of Allergy and Rheumatology, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
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Lee SW, Park HJ, Jeon SH, Lee C, Seong RH, Park SH, Hong S. Ubiquitous Over-Expression of Chromatin Remodeling Factor SRG3 Ameliorates the T Cell-Mediated Exacerbation of EAE by Modulating the Phenotypes of both Dendritic Cells and Macrophages. PLoS One 2015; 10:e0132329. [PMID: 26147219 PMCID: PMC4492541 DOI: 10.1371/journal.pone.0132329] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 06/14/2015] [Indexed: 12/18/2022] Open
Abstract
Although SWI3-related gene (SRG3), a chromatin remodeling factor, is critical for various biological processes including early embryogenesis and thymocyte development, it is unclear whether SRG3 is involved in the differentiation of CD4+ T cells, the key mediator of adaptive immune responses. Because it is known that experimental autoimmune encephalomyelitis (EAE) development is determined by the activation of CD4+ T helper cells, here, we investigated the role of SRG3 in EAE development using SRG3 transgenic mouse models exhibiting two distinct SRG3 expression patterns: SRG3 expression driven by either the CD2 or β-actin promoter. We found that the outcome of EAE development was completely different depending on the expression pattern of SRG3. The specific over-expression of SRG3 using the CD2 promoter facilitated EAE via the induction of Th1 and Th17 cells, whereas the ubiquitous over-expression of SRG3 using the β-actin promoter inhibited EAE by promoting Th2 differentiation and suppressing Th1 and Th17 differentiation. In addition, the ubiquitous over-expression of SRG3 polarized CD4+ T cell differentiation towards the Th2 phenotype by converting dendritic cells (DCs) or macrophages to Th2 types. SRG3 over-expression not only reduced pro-inflammatory cytokine production by DCs but also shifted macrophages from the inducible nitric oxide synthase (iNOS)-expressing M1 phenotype to the arginase-1-expressing M2 phenotype during EAE. In addition, Th2 differentiation in β-actin-SRG3 Tg mice during EAE was associated with an increase in the basophil and mast cell populations and in IL4 production. Furthermore, the increased frequency of Treg cells in the spinal cord of β-actin-SRG3 Tg mice might induce the suppression of and accelerate the recovery from EAE symptoms. Taken together, our results provide the first evidence supporting the development of a new therapeutic strategy for EAE involving the modulation of SRG3 expression to induce M2 and Th2 polarization, thereby inhibiting inflammatory immune responses.
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Affiliation(s)
- Sung Won Lee
- Dept. of Bioscience and Biotechnology, Institute of Bioscience, Sejong University, Seoul 143–747, Korea
- School of Life Sciences and Biotechnology, Korea University, Seoul 136–701, Korea
| | - Hyun Jung Park
- Dept. of Bioscience and Biotechnology, Institute of Bioscience, Sejong University, Seoul 143–747, Korea
| | - Sung Ho Jeon
- Dept. of Life Science, Hallym University, Chuncheon 200–702, Korea
| | - Changjin Lee
- Dept. of Biological Sciences, Institute of Molecular Biology and Genetics, Research Center for Functional Cellulomics, Seoul National University, Seoul 151–742, Korea
| | - Rho Hyun Seong
- Dept. of Biological Sciences, Institute of Molecular Biology and Genetics, Research Center for Functional Cellulomics, Seoul National University, Seoul 151–742, Korea
| | - Se-Ho Park
- School of Life Sciences and Biotechnology, Korea University, Seoul 136–701, Korea
| | - Seokmann Hong
- Dept. of Bioscience and Biotechnology, Institute of Bioscience, Sejong University, Seoul 143–747, Korea
- * E-mail:
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29
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De Trez C, Katsandegwaza B, Caljon G, Magez S. Experimental African Trypanosome Infection by Needle Passage or Natural Tsetse Fly Challenge Thwarts the Development of Collagen-Induced Arthritis in DBA/1 Prone Mice via an Impairment of Antigen Specific B Cell Autoantibody Titers. PLoS One 2015; 10:e0130431. [PMID: 26110416 PMCID: PMC4482398 DOI: 10.1371/journal.pone.0130431] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 05/20/2015] [Indexed: 01/22/2023] Open
Abstract
Collagen-induced arthritis is a B cell-mediated autoimmune disease. Recently published studies have demonstrated that in some rare cases pathogens can confer protection from autoimmunity. Trypanosoma brucei parasites are tsetse fly transmitted extracellular protozoans causing sleeping sickness disease in humans and Nagana in livestock in sub-Saharan endemic areas. In the past, we demonstrated that trypanosome infections impair B cell homeostasis and abolish vaccine-induced protection against unrelated antigens. Hence, here we hypothesized that trypanosome infection can affect the onset of CIA by specifically dampening specific B-cell responses and type II collagen antibody titers in DBA/1 prone mice. We observed a substantial delay in the onset of collagen-induced arthritis in T. brucei-infected DBA/1 mice that correlates with a drastic decrease of type II collagen titers of the different IgG isotypes in the serum. Treatment of infected mice with Berenil, a trypanocidal drug, restored the development of CIA-associated clinical symptoms. Interestingly, these data were confirmed by the challenge of immunized DBA/1 prone mice with T. brucei-infected tsetse flies. Together, these results demonstrate that T. brucei infection is impairing the maintenance of the antigen specific plasma B cell pool driving the development of CIA in DBA/1 prone mice.
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Affiliation(s)
- Carl De Trez
- Research Unit of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
- VIB Department of Structural Biology, Brussels, Belgium
- * E-mail:
| | - Brunette Katsandegwaza
- Research Unit of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
- VIB Department of Structural Biology, Brussels, Belgium
| | - Guy Caljon
- Unit of Veterinary Protozoology, Department of Biomedical Sciences, Institute of Tropical Medicine Antwerp (ITM), Antwerp, Belgium
- Unit of Cellular and Molecular Immunology, Vrije Universiteit Brussel (VUB), Brussels, Belgium
- Laboratory of Myeloid Cell Immunology, Vlaams Instituut voor Biotechnologie (VIB), Brussels, Belgium
| | - Stefan Magez
- Research Unit of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
- VIB Department of Structural Biology, Brussels, Belgium
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