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Lin J, Bai S, He L, Yang Y, Li X, Luo L, Wang Y, Chen YY, Qin J, Zhong Y. Cytotoxic Lymphocyte-Monocyte Complex Reflects the Dynamics of Coronavirus Disease 2019 Systemic Immune Response. J Infect Dis 2024; 230:5-14. [PMID: 39052699 DOI: 10.1093/infdis/jiae048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 12/01/2023] [Accepted: 01/29/2024] [Indexed: 02/03/2024] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection causes a variety of clinical manifestations, many of which originate from altered immune responses, either locally or systemically. Immune cell cross-talk occurs mainly in lymphoid organs. However, systemic cell interaction specific to coronavirus disease 2019 has not been well characterized. Here, by employing single-cell RNA sequencing and imaging flow cytometry analysis, we unraveled, in peripheral blood, a heterogeneous group of cell complexes formed by the adherence of CD14+ monocytes to different cytotoxic lymphocytes, including SARS-CoV-2-specific CD8+ T cells, γδ T cells, and natural killer T cells. These lymphocytes attached to CD14+ monocytes that showed enhanced inflammasome activation and pyroptosis-induced cell death in progression stage; in contrast, in the convalescent phase, CD14+ monocytes with elevated antigen presentation potential were targeted by cytotoxic lymphocytes, thereby restricting the excessive immune activation. Collectively, our study reports previously unrecognized cell-cell interplay in the SARS-CoV-2-specific immune response, providing new insight into the intricacy of dynamic immune cell interaction representing antiviral defense.
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Affiliation(s)
- Jiajia Lin
- Department of Microbiology and Immunology, Shanghai Jiao Tong University School of Medicine
- Shanghai Immune Therapy Institute, Renji Hospital and Baoshan Branch of Renji Hospital, Shanghai Jiao Tong University School of Medicine
| | - Shiyu Bai
- Shanghai Immune Therapy Institute, Renji Hospital and Baoshan Branch of Renji Hospital, Shanghai Jiao Tong University School of Medicine
| | - Liheng He
- Department of Microbiology and Immunology, Shanghai Jiao Tong University School of Medicine
| | - Ye Yang
- Xinhua Hospital, Shanghai Jiao Tong University School of Medicine
| | - Xiyue Li
- Department of Microbiology and Immunology, Shanghai Jiao Tong University School of Medicine
- Shanghai Immune Therapy Institute, Renji Hospital and Baoshan Branch of Renji Hospital, Shanghai Jiao Tong University School of Medicine
| | - Liulin Luo
- Department of Clinical Laboratory, Yangpu Hospital, Tongji University School of Medicine
| | - Ying Wang
- Department of Microbiology and Immunology, Shanghai Jiao Tong University School of Medicine
- Shanghai Institute of Virology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying-Ying Chen
- Department of Microbiology and Immunology, Shanghai Jiao Tong University School of Medicine
- Shanghai Institute of Virology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jinhong Qin
- Department of Microbiology and Immunology, Shanghai Jiao Tong University School of Medicine
| | - Yi Zhong
- Shanghai Immune Therapy Institute, Renji Hospital and Baoshan Branch of Renji Hospital, Shanghai Jiao Tong University School of Medicine
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2
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Honing DY, Luiten RM, Matos TR. Regulatory T Cell Dysfunction in Autoimmune Diseases. Int J Mol Sci 2024; 25:7171. [PMID: 39000278 PMCID: PMC11241405 DOI: 10.3390/ijms25137171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Accepted: 06/24/2024] [Indexed: 07/16/2024] Open
Abstract
Regulatory T cells (Tregs), a suppressive subpopulation of T cells, are potent mediators of peripheral tolerance, responsible for immune homeostasis. Many autoimmune diseases exhibit disruptions in Treg function or quantity, resulting in an imbalance between protective and pathogenic immune cells. Selective expansion or manipulation of Tregs is a promising therapeutic approach for autoimmune diseases. However, the extensive diversity of Treg subpopulations and the multiple approaches used for Treg identification leads to high complexity, making it difficult to develop a successful treatment capable of modulating Tregs. In this review, we describe the suppressive mechanisms, subpopulations, classification, and identification methodology for Tregs, and their role in the pathogenesis of autoimmune diseases.
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Affiliation(s)
- Dionne Y Honing
- Department of Dermatology, Netherlands Institute for Pigment Disorders, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, 1081 HV Amsterdam, The Netherlands
| | - Rosalie M Luiten
- Department of Dermatology, Netherlands Institute for Pigment Disorders, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Cancer Center Amsterdam, Amsterdam Institute for Infection and Immunity, 1081 HV Amsterdam, The Netherlands
| | - Tiago R Matos
- Department of Dermatology, Netherlands Institute for Pigment Disorders, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
- Sanofi, 1105 BP Amsterdam, The Netherlands
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3
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Zhang J, Liu H, Chen Y, Liu H, Zhang S, Yin G, Xie Q. Augmenting regulatory T cells: new therapeutic strategy for rheumatoid arthritis. Front Immunol 2024; 15:1312919. [PMID: 38322264 PMCID: PMC10844451 DOI: 10.3389/fimmu.2024.1312919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 01/08/2024] [Indexed: 02/08/2024] Open
Abstract
Rheumatoid arthritis (RA) is a chronic, systemic autoimmune condition marked by inflammation of the joints, degradation of the articular cartilage, and bone resorption. Recent studies found the absolute and relative decreases in circulating regulatory T cells (Tregs) in RA patients. Tregs are a unique type of cells exhibiting immunosuppressive functions, known for expressing the Foxp3 gene. They are instrumental in maintaining immunological tolerance and preventing autoimmunity. Increasing the absolute number and/or enhancing the function of Tregs are effective strategies for treating RA. This article reviews the studies on the mechanisms and targeted therapies related to Tregs in RA, with a view to provide better ideas for the treatment of RA.
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Affiliation(s)
- Jiaqian Zhang
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Hongjiang Liu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Yuehong Chen
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Huan Liu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Shengxiao Zhang
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Geng Yin
- Department of General Practice, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu, China
| | - Qibing Xie
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
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4
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Goutakoli P, Papadaki G, Repa A, Avgoustidis N, Kalogiannaki E, Flouri I, Bertsias A, Zoidakis J, Samiotaki M, Bertsias G, Semitekolou M, Verginis P, Sidiropoulos P. A Peripheral Blood Signature of Increased Th1 and Myeloid Cells Combined with Serum Inflammatory Mediators Is Associated with Response to Abatacept in Rheumatoid Arthritis Patients. Cells 2023; 12:2808. [PMID: 38132128 PMCID: PMC10741898 DOI: 10.3390/cells12242808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 12/23/2023] Open
Abstract
Abatacept (CTLA4-Ig)-a monoclonal antibody which restricts T cell activation-is an effective treatment for rheumatoid arthritis (RA). Nevertheless, only 50% of RA patients attain clinical responses, while predictors of response are rather limited. Herein, we aimed to investigate for early biomarkers of response to abatacept, based on a detailed immunological profiling of peripheral blood (PB) cells and serum proteins. We applied flow cytometry and proteomics analysis on PB immune cells and serum respectively, of RA patients starting abatacept as the first biologic agent. After 6 months of treatment, 34.5% of patients attained response. At baseline, Th1 and FoxP3+ T cell populations were positively correlated with tender joint counts (p-value = 0.047 and p-value = 0.022, respectively). Upon treatment, CTLA4-Ig effectively reduced the percentages of Th1 and Th17 only in responders (p-value = 0.0277 and p-value = 0.0042, respectively). Notably, baseline levels of Th1 and myeloid cell populations were significantly increased in PB of responders compared to non-responders (p-value = 0.009 and p-value = 0.03, respectively). Proteomics analysis revealed that several inflammatory mediators were present in serum of responders before therapy initiation and strikingly 10 amongst 303 serum proteins were associated with clinical responses. Finally, a composite index based on selected baseline cellular and proteomics' analysis could predict response to abatacept with a high sensitivity (90%) and specificity (88.24%).
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Affiliation(s)
- Panagiota Goutakoli
- Laboratory of Rheumatology, Autoimmunity and Inflammation, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Garyfalia Papadaki
- Laboratory of Rheumatology, Autoimmunity and Inflammation, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Argyro Repa
- Rheumatology and Clinical Immunology, University Hospital of Heraklion, 71003 Heraklion, Greece; (A.R.); (N.A.); (I.F.)
| | - Nestor Avgoustidis
- Rheumatology and Clinical Immunology, University Hospital of Heraklion, 71003 Heraklion, Greece; (A.R.); (N.A.); (I.F.)
| | - Eleni Kalogiannaki
- Rheumatology and Clinical Immunology, University Hospital of Heraklion, 71003 Heraklion, Greece; (A.R.); (N.A.); (I.F.)
| | - Irini Flouri
- Rheumatology and Clinical Immunology, University Hospital of Heraklion, 71003 Heraklion, Greece; (A.R.); (N.A.); (I.F.)
| | - Antonios Bertsias
- Rheumatology and Clinical Immunology, University Hospital of Heraklion, 71003 Heraklion, Greece; (A.R.); (N.A.); (I.F.)
| | - Jerome Zoidakis
- Department of Biotechnology, Biomedical Research Foundation, Academy of Athens, 11527 Athens, Greece;
| | - Martina Samiotaki
- Protein Chemistry Facility, Biomedical Sciences Research Center “Alexander Fleming”, 16672 Athens, Greece;
| | - George Bertsias
- Laboratory of Rheumatology, Autoimmunity and Inflammation, Medical School, University of Crete, 71003 Heraklion, Greece
- Rheumatology and Clinical Immunology, University Hospital of Heraklion, 71003 Heraklion, Greece; (A.R.); (N.A.); (I.F.)
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology Hellas (FORTH), 70013 Heraklion, Greece
| | - Maria Semitekolou
- Laboratory of Rheumatology, Autoimmunity and Inflammation, Medical School, University of Crete, 71003 Heraklion, Greece
- Laboratory of Cellular Immunology Division of Basic Research, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - Panayotis Verginis
- Laboratory of Immune Regulation and Tolerance, Division of Basic Sciences, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Prodromos Sidiropoulos
- Laboratory of Rheumatology, Autoimmunity and Inflammation, Medical School, University of Crete, 71003 Heraklion, Greece
- Rheumatology and Clinical Immunology, University Hospital of Heraklion, 71003 Heraklion, Greece; (A.R.); (N.A.); (I.F.)
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology Hellas (FORTH), 70013 Heraklion, Greece
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Belousova O, Lopatina A, Kuzmina U, Melnikov M. The role of biogenic amines in the modulation of monocytes in autoimmune neuroinflammation. Mult Scler Relat Disord 2023; 78:104920. [PMID: 37536214 DOI: 10.1016/j.msard.2023.104920] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 07/18/2023] [Accepted: 07/28/2023] [Indexed: 08/05/2023]
Abstract
Multiple sclerosis (MS) is inflammatory demyelinating and neurodegenerative disease of the central nervous system (CNS) with autoimmune mechanism of development. The study of the neuroimmune interactions is one of the most developing directions in the research of the pathogenesis of MS. The influence of biogenic amines on the pathogenesis of experimental autoimmune encephalomyelitis (EAE) and MS was shown by the modulation of subsets of T-helper cells and B-cells, which plays a crucial role in the autoimmunity of the CNS. However, along with T- and B-cells the critical involvement of mononuclear phagocytes such as dendritic cells, macrophages, and monocytes in the development of neuroinflammation also was shown. It was demonstrated that the activation of microglial cells (resident macrophages of the CNS) could initiate the neuroinflammation in the EAE, suggesting their role at an early stage of the disease. In contrast, monocytes, which migrate from the periphery into the CNS through the blood-brain barrier, mediate the effector phase of the disease and cause neurological disability in EAE. In addition, the clinical efficacy of the therapy with depletion of the monocytes in EAE was shown, suggesting their crucial role in the autoimmunity of the CNS. Biogenic amines, such as epinephrine, norepinephrine, dopamine, and serotonin are direct mediators of the neuroimmune interaction and may affect the pathogenesis of EAE and MS by modulating the immune cell activity and cytokine production. The anti-inflammatory effect of targeting the biogenic amines receptors on the pathogenesis of EAE and MS by suppression of Th17- and Th1-cells, which are critical for the CNS autoimmunity, was shown. However, the latest data showed the potential ability of biogenic amines to affect the functions of the mononuclear phagocytes and their involvement in the modulation of neuroinflammation. This article reviews the literature data on the role of monocytes in the pathogenesis of EAE and MS. The data on the effect of targeting of biogenic amine receptors on the function of monocytes are presented.
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Affiliation(s)
- Olga Belousova
- Laboratory of Neuroimmunology, Federal Center of Brain Research and Neurotechnology of the Federal Medical-Biological Agency of Russia, Moscow, Russia
| | - Anna Lopatina
- Laboratory of Neuroimmunology, Federal Center of Brain Research and Neurotechnology of the Federal Medical-Biological Agency of Russia, Moscow, Russia
| | - Ulyana Kuzmina
- Laboratory of Neuroimmunology, Federal Center of Brain Research and Neurotechnology of the Federal Medical-Biological Agency of Russia, Moscow, Russia; Laboratory of Molecular Pharmacology and Immunology, Institute of Biochemistry and Genetics - Subdivision of the Ufa Federal Research Center of the Russian Academy of Science, Ufa, Russia
| | - Mikhail Melnikov
- Laboratory of Neuroimmunology, Federal Center of Brain Research and Neurotechnology of the Federal Medical-Biological Agency of Russia, Moscow, Russia; Department of Neurology, Neurosurgery and Medical Genetics, Pirogov Russian National Research Medical University, Moscow, Russia; Laboratory of Clinical Immunology, National Research Center Institute of Immunology of the Federal Medical-Biological Agency of Russia, Moscow, Russia.
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6
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Purzycka-Bohdan D, Nedoszytko B, Sobalska-Kwapis M, Zabłotna M, Żmijewski MA, Wierzbicka J, Gleń J, Strapagiel D, Szczerkowska-Dobosz A, Nowicki RJ. Assessment of the Potential Role of Selected Single Nucleotide Polymorphisms (SNPs) of Genes Related to the Functioning of Regulatory T Cells in the Pathogenesis of Psoriasis. Int J Mol Sci 2023; 24:ijms24076061. [PMID: 37047033 PMCID: PMC10094301 DOI: 10.3390/ijms24076061] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/19/2023] [Accepted: 03/21/2023] [Indexed: 04/14/2023] Open
Abstract
Recent studies have indicated a key role of the impaired suppressive capacity of regulatory T cells (Tregs) in psoriasis (PsO) pathogenesis. However, the genetic background of Treg dysfunctions remains unknown. The aim of this study was to evaluate the association of PsO development with selected single nucleotide polymorphisms (SNPs) of genes in which protein products play a significant role in the regulation of differentiation and function of Tregs. There were three study groups in our research and each consisted of different unrelated patients and controls: 192 PsO patients and 5605 healthy volunteers in the microarray genotyping group, 150 PsO patients and 173 controls in the ARMS-PCR method group, and 6 PsO patients and 6 healthy volunteers in the expression analysis group. The DNA microarrays analysis (283 SNPs of 57 genes) and ARMS-PCR method (8 SNPs in 7 genes) were used to determine the frequency of occurrence of SNPs in selected genes. The mRNA expression of selected genes was determined in skin samples. There were statistically significant differences in the allele frequencies of four SNPs in three genes (TNF, IL12RB2, and IL12B) between early-onset PsO patients and controls. The lowest p-value was observed for rs3093662 (TNF), and the G allele carriers had a 2.73 times higher risk of developing early-onset PsO. Moreover, the study revealed significant differences in the frequency of SNPs and their influence on PsO development between early- and late-onset PsO. Based on the ARMS-PCR method, the association between some polymorphisms of four genes (IL4, IL10, TGFB1, and STAT3) and the risk of developing PsO was noticed. Psoriatic lesions were characterized with a lower mRNA expression of FOXP3, CTLA4, and IL2, and a higher expression of TNF and IL1A in comparison with unaffected skin. In conclusion, the genetic background associated with properly functioning Tregs seems to play a significant role in PsO pathogenesis and could have diagnostic value.
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Affiliation(s)
- Dorota Purzycka-Bohdan
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Bogusław Nedoszytko
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, 80-210 Gdansk, Poland
- Molecular Laboratory, Invicta Fertility and Reproductive Centre, 81-740 Sopot, Poland
| | - Marta Sobalska-Kwapis
- Biobank Laboratory, Department of Oncobiology and Epigenetics, Faculty of Biology and Environmental Protection, University of Lodz, 90-237 Lodz, Poland
| | - Monika Zabłotna
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Michał A Żmijewski
- Department of Histology, Medical University of Gdansk, 80-211 Gdansk, Poland
| | - Justyna Wierzbicka
- Department of Histology, Medical University of Gdansk, 80-211 Gdansk, Poland
| | - Jolanta Gleń
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Dominik Strapagiel
- Biobank Laboratory, Department of Oncobiology and Epigenetics, Faculty of Biology and Environmental Protection, University of Lodz, 90-237 Lodz, Poland
| | - Aneta Szczerkowska-Dobosz
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Roman J Nowicki
- Department of Dermatology, Venereology and Allergology, Medical University of Gdansk, 80-210 Gdansk, Poland
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Zhang L, Jiao W, Deng H, Hu C, Xu J, Yu J, Liu L, Zhang M, Liu J, Chen G. High-throughput Treg cell receptor sequencing reveals differential immune repertoires in rheumatoid arthritis with kidney deficiency. PeerJ 2023; 11:e14837. [PMID: 36751634 PMCID: PMC9899432 DOI: 10.7717/peerj.14837] [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: 08/08/2022] [Accepted: 01/10/2023] [Indexed: 02/05/2023] Open
Abstract
Background Regulatory T (Treg) cells are important immune cells that are regulated by adaptive immunity in the composition of Treg-cell subsets and T-cell receptors (TCRs). Treg cells are related to most autoimmune diseases, such as rheumatoid arthritis (RA). In traditional Chinese medicine (TCM), RA is typically attributed to kidney deficiency (KD) associated with the immunosenescence that causes immune dysfunction and the impaired function of Treg cells. So far, however, no mechanism related to KD and immune repertoires has been identified in RA. Methods Flow cytometry and high-throughput Treg-cell receptor sequencing were used to investigate the amount of different Treg-cell subsets and the diversity of TCRs between RA patients and healthy subjects, as well as between KD RA and non-KD RA patients. RT-qPCR was used to validate the high-throughput sequencing results. Results The data showed that the amount of naïve Treg cells in KD patients was less than in non-KD RA patients (P = 0.004) with no significant differences observed between other subsets. In the TCR of Treg cells, the length of complementarity determining region 3 (CDR3) was low and clonotypes increased in the KD group compared with the non-KD group. The diversity and abundance of Treg TCRs were low, as determined by the Hill number. In addition, several V(D)J combinations, such as T-cell receptor beta variable 7-2 (TRBV7-2), TRBV11-1, TRBV13, TRBV15, and TRBJ2-3, varied significantly between the two groups, indicating that KD causes Treg dysfunction. RT-qPCR shows that FOXP3 expression in peripheral blood Treg is lower in KD than in non-KD. Conclusion The results demonstrate the close correlation between KD and immune repertoires in RA and provide a new evaluation method for RA in TCM.
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Affiliation(s)
- Lu Zhang
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei Jiao
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hui Deng
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Congqi Hu
- Department of Rheumatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jia Xu
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiahui Yu
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lijuan Liu
- Department of Rheumatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Mingying Zhang
- Department of Rheumatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiduo Liu
- Department of Rheumatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Guangxing Chen
- Department of Rheumatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China,Baiyun Hospital of the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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Eakin AJ, Ahmed T, McGeough CM, Drain S, Alexander HD, Wright GD, Gardiner PV, Small D, Bjourson AJ, Gibson DS. CD169+ Monocyte and Regulatory T Cell Subsets Are Associated with Disease Activity in Rheumatoid Arthritis. J Pers Med 2022; 12:jpm12111875. [PMID: 36579595 PMCID: PMC9695519 DOI: 10.3390/jpm12111875] [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: 09/27/2022] [Revised: 10/20/2022] [Accepted: 10/26/2022] [Indexed: 11/11/2022] Open
Abstract
Disease activity in rheumatoid arthritis (RA) is influenced by activation of circulating and synovial immune cells. Regulatory T cells (Tregs) and monocytes are key cells that drive inflammation in RA. This study investigated if a relationship exists between disease activity in RA and circulating Treg and monocyte numbers and phenotypes. A potential sialic acid (Sia) mediated link between Tregs and monocytes was also probed in vitro. Peripheral blood mononuclear cells (PBMCs) were isolated from RA patient (n = 62) and healthy control (n = 21) blood using density gradient separation. Flow cytometry was used to count and phenotype Treg and monocyte subsets, and to sort healthy control Tregs for Sia cell culture experiments. The effects of Sia on activated Treg FoxP3 and NFκB expression was assessed by flow cytometry and concentrations of secreted TNFα, IL-10 and IFNγ determined by ELISA. High disease activity RA patients who were unresponsive to disease modifying anti-rheumatic drugs (n = 31), have significantly lower relative numbers (percentages) of CD4+CD25+CD127− Tregs (p < 0.01) and memory CD45RA−FoxP3+ Tregs (p < 0.01), compared to low disease activity responders (n = 24). Relative numbers of non-classical CD169+ monocytes are associated with disease activity in RA (p = 0.012). Sia reduced Treg expression of FoxP3, NFκB and cytokines in vitro. A strong association has been identified between non-classical CD169+ monocytes and post-treatment disease activity in RA. This study also indicates that Sia can reduce Treg activation and cytokine release. We postulate that such a reduction could be mediated by interaction with sialyted proteins captured by CD169+ monocytes.
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Affiliation(s)
- Amanda J. Eakin
- Personalised Medicine Centre, School of Medicine, Ulster University, Altnagelvin Hospital, Londonderry BT47 6SB, UK
- The Patrick G Johnston Centre for Cancer Research, Queen’s University Belfast, Belfast BT9 7AE, UK
| | - Tahanver Ahmed
- Personalised Medicine Centre, School of Medicine, Ulster University, Altnagelvin Hospital, Londonderry BT47 6SB, UK
| | - Cathy M. McGeough
- Biomarker Research Unit, Almac Diagnostics Ltd., Craigavon BT63 5QD, UK
| | - Stephen Drain
- Personalised Medicine Centre, School of Medicine, Ulster University, Altnagelvin Hospital, Londonderry BT47 6SB, UK
| | - H. Denis Alexander
- Personalised Medicine Centre, School of Medicine, Ulster University, Altnagelvin Hospital, Londonderry BT47 6SB, UK
| | - Gary D. Wright
- Department of Rheumatology, Musgrave Park Hospital, Belfast BT9 7JB, UK
| | - Philip V. Gardiner
- Department of Rheumatology, Altnagelvin Hospital, Londonderry BT47 6LS, UK
| | - Dawn Small
- Department of Rheumatology, Altnagelvin Hospital, Londonderry BT47 6LS, UK
| | - Anthony J. Bjourson
- Personalised Medicine Centre, School of Medicine, Ulster University, Altnagelvin Hospital, Londonderry BT47 6SB, UK
| | - David S. Gibson
- Personalised Medicine Centre, School of Medicine, Ulster University, Altnagelvin Hospital, Londonderry BT47 6SB, UK
- Correspondence: ; Tel.: +44-(0)2871-675633
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9
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Anti-cancer Effect of Recombinant PI-Laterosporulin10 as a Novel Bacteriocin with Selective Cytotoxicity on Triple Negative Breast Cancer Cells. Int J Pept Res Ther 2022. [DOI: 10.1007/s10989-022-10453-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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10
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Rezaei Kahmini F, Shahgaldi S, Azimi M, Mansourabadi AH. Emerging therapeutic potential of regulatory T (Treg) cells for rheumatoid arthritis: New insights and challenges. Int Immunopharmacol 2022; 108:108858. [PMID: 35597122 DOI: 10.1016/j.intimp.2022.108858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 04/27/2022] [Accepted: 05/10/2022] [Indexed: 11/05/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune-related disorder characterized by chronic inflammation. Although the etiopathogenesis of RA still remains to be clarified, it is supposed that the breakdown of immune self-tolerance may contribute to the development of RA. Thus, restoring of immune tolerance at the site of inflammation is the ultimate goal of RA treatment. Regulatory T cells (Treg cells) are the main suppressive cells that maintain tolerance and inhibit immunity against auto-antigen. Of note, recent studies demonstrated the efficacy of adoptive transfer of Treg cells in the modulation of the unwanted immune response, which makes them an ideal candidate to maintain immune homeostasis and restore antigen-specific tolerance in the case of RA and other autoimmune diseases. This review intends to submit recent finding of Treg cells-based therapies in RA with a focus on strategies applied to improve the therapeutic value of Treg cells to restore immune tolerance.
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Affiliation(s)
- Fatemeh Rezaei Kahmini
- Autoimmune Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Shahab Shahgaldi
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Maryam Azimi
- Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Hossein Mansourabadi
- Department of Immunology, School of medicine, Tehran University of Medical Sciences, Tehran, Iran; Immunogenetics Research Network (IgReN), Universal Scientific Education and Research Network (USERN), Tehran, Iran
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11
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Olsson AM, Povoleri GAM, Somma D, Ridley ML, Rizou T, Lalnunhlimi S, Macdonald L, Rajasekhar M, Martinez-Nunez RT, Kurowska-Stolarska M, Taams LS. miR-155-overexpressing monocytes resemble HLAhighISG15+ synovial tissue macrophages from patients with rheumatoid arthritis and induce polyfunctional CD4+ T-cell activation. Clin Exp Immunol 2022; 207:188-198. [PMID: 35020867 PMCID: PMC8982969 DOI: 10.1093/cei/uxab016] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/25/2021] [Accepted: 11/08/2021] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRs) are known to regulate pro-inflammatory effector functions of myeloid cells, and miR dysregulation is implicated in rheumatoid arthritis (RA), a condition characterized by inflammation and destruction of the joints. We showed previously that miR-155 is increased in myeloid cells in RA and induces pro-inflammatory activation of monocytes and macrophages; however, its role at the interface between innate and adaptive immunity was not defined. Here, RNA-sequencing revealed that overexpression of miR-155 in healthy donor monocytes conferred a specific gene profile which bears similarities to that of RA synovial fluid-derived CD14+ cells and HLAhighISG15+ synovial tissue macrophages, both of which are characterized by antigen-presenting pathways. In line with this, monocytes in which miR-155 was overexpressed, displayed increased expression of HLA-DR and both co-stimulatory and co-inhibitory molecules, and induced activation of polyfunctional T cells. Together, these data underpin the notion that miR-155-driven myeloid cell activation in the synovium contributes not only to inflammation but may also influence the adaptive immune response.
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Affiliation(s)
- Anton M Olsson
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Giovanni A M Povoleri
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Domenico Somma
- Institute of Infection, Immunity, and Inflammation, University of Glasgow, Glasgow, UK
| | - Michael L Ridley
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London, UK.,GSK, Stevenage, UK
| | - Tatiana Rizou
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London, UK.,Francis Crick Institute, London, UK
| | - Sylvine Lalnunhlimi
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London, UK
| | - Lucy Macdonald
- Institute of Infection, Immunity, and Inflammation, University of Glasgow, Glasgow, UK.,Research into Inflammatory Arthritis Centre Versus Arthritis (RACE), University of Glasgow, Glasgow, UK
| | - Megha Rajasekhar
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London, UK.,Melbourne School of Population and Global Health, The University of Melbourne, Carlton, VIC, Australia
| | - Rocio T Martinez-Nunez
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Mariola Kurowska-Stolarska
- Institute of Infection, Immunity, and Inflammation, University of Glasgow, Glasgow, UK.,Research into Inflammatory Arthritis Centre Versus Arthritis (RACE), University of Glasgow, Glasgow, UK
| | - Leonie S Taams
- Centre for Inflammation Biology and Cancer Immunology, Department of Inflammation Biology, School of Immunology and Microbial Sciences, King's College London, London, UK
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12
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Fooks AN, Beppu LY, Frias AB, D'Cruz LM. Adipose tissue regulatory T cells: differentiation and function. Int Rev Immunol 2022; 42:323-333. [PMID: 35212593 PMCID: PMC9402810 DOI: 10.1080/08830185.2022.2044808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/09/2022] [Accepted: 02/15/2022] [Indexed: 10/19/2022]
Abstract
Rising obesity levels, worldwide, are resulting in substantial increases in cardiovascular disease, diabetes, kidney disease, musculoskeletal disorders, and certain cancers, and obesity-associated illnesses are estimated to cause ∼4 million deaths worldwide per year. A common theme in this disease epidemic is the chronic systemic inflammation that accompanies obesity. CD4+ Foxp3+ regulatory T cells residing in visceral adipose tissues (VAT Tregs) are a unique immune cell population that play essential functions in restricting obesity-associated systemic inflammation through regulation of adipose tissue homeostasis. The distinct transcriptional program that defines VAT Tregs has been described, but directly linking VAT Treg differentiation and function to improving insulin sensitivity has proven more complex. Here we review new findings which have clarified how VAT Tregs differentiate, and how distinct VAT Treg subsets regulate VAT homeostasis, energy expenditure, and insulin sensitivity.
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Affiliation(s)
- Allen N Fooks
- Department of Immunology, University of Pittsburgh, Biomedical Science Tower, Pittsburgh, PA, USA
| | - Lisa Y Beppu
- Department of Immunology, University of Pittsburgh, Biomedical Science Tower, Pittsburgh, PA, USA
| | - Adolfo B Frias
- Department of Immunology, University of Pittsburgh, Biomedical Science Tower, Pittsburgh, PA, USA
| | - Louise M D'Cruz
- Department of Immunology, University of Pittsburgh, Biomedical Science Tower, Pittsburgh, PA, USA
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13
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Crum RJ, Hall K, Molina CP, Hussey GS, Graham E, Li H, Badylak SF. Immunomodulatory matrix-bound nanovesicles mitigate acute and chronic pristane-induced rheumatoid arthritis. NPJ Regen Med 2022; 7:13. [PMID: 35110573 PMCID: PMC8810774 DOI: 10.1038/s41536-022-00208-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 12/20/2021] [Indexed: 12/13/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammation and destruction of synovial joints affecting ~7.5 million people worldwide. Disease pathology is driven by an imbalance in the ratio of pro-inflammatory vs. anti-inflammatory immune cells, especially macrophages. Modulation of macrophage phenotype, specifically an M1 to M2, pro- to anti-inflammatory transition, can be induced by biologic scaffold materials composed of extracellular matrix (ECM). The ECM-based immunomodulatory effect is thought to be mediated in part through recently identified matrix-bound nanovesicles (MBV) embedded within ECM. Isolated MBV was delivered via intravenous (i.v.) or peri-articular (p.a.) injection to rats with pristane-induced arthritis (PIA). The results of MBV administration were compared to intraperitoneal (i.p.) administration of methotrexate (MTX), the clinical standard of care. Relative to the diseased animals, i.p. MTX, i.v. MBV, and p.a. MBV reduced arthritis scores in both acute and chronic pristane-induced arthritis, decreased synovial inflammation, decreased adverse joint remodeling, and reduced the ratio of synovial and splenic M1 to M2 macrophages (p < 0.05). Both p.a. and i.v. MBV reduced the serum concentration of RA and PIA biomarkers CXCL10 and MCP-3 in the acute and chronic phases of disease (p < 0.05). Flow-cytometry revealed the presence of a systemic CD43hi/His48lo/CD206+, immunoregulatory monocyte population unique to p.a. and i.v. MBV treatment associated with disease resolution. The results show that the therapeutic efficacy of MBV is equal to that of MTX for the management of acute and chronic pristane-induced arthritis and, further, this effect is associated with modulation of local synovial macrophages and systemic myeloid populations.
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Affiliation(s)
- Raphael J Crum
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA, 15219, USA
| | - Kelsey Hall
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA, 15219, USA
| | - Catalina Pineda Molina
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA, 15219, USA.,Department of Surgery, School of Medicine, University of Pittsburgh, University of Pittsburgh Medical Center Presbyterian Hospital, 200 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - George S Hussey
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA, 15219, USA.,Department of Surgery, School of Medicine, University of Pittsburgh, University of Pittsburgh Medical Center Presbyterian Hospital, 200 Lothrop Street, Pittsburgh, PA, 15213, USA.,ECM Therapeutics, Inc., 118 Marshall Dr., Warrendale, PA, 15086, USA
| | - Emma Graham
- Musculoskeletal Growth and Regeneration Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, 450 Technology Drive, Suite 206, Pittsburgh, PA, 15219, USA
| | - Hongshuai Li
- Department of Orthopedics and Rehabilitation, University of Iowa, 25 Grand Ave, Iowa City, IA, 52246, USA
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA, 15219, USA. .,Department of Surgery, School of Medicine, University of Pittsburgh, University of Pittsburgh Medical Center Presbyterian Hospital, 200 Lothrop Street, Pittsburgh, PA, 15213, USA. .,ECM Therapeutics, Inc., 118 Marshall Dr., Warrendale, PA, 15086, USA. .,Department of Bioengineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, 15261, USA.
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14
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Li X, Xu H, Huang J, Luo D, Lv S, Lu X, Xiao C. Dysfunctions, Molecular Mechanisms, and Therapeutic Strategies of Regulatory T Cells in Rheumatoid Arthritis. Front Pharmacol 2021; 12:716081. [PMID: 34512345 PMCID: PMC8428974 DOI: 10.3389/fphar.2021.716081] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/19/2021] [Indexed: 12/20/2022] Open
Abstract
Regulatory T cells (Tregs) represent a distinct subpopulation of CD4+ T lymphocytes that promote immune tolerance and maintain immune system homeostasis. The dysfunction of Tregs is tightly associated with rheumatoid arthritis (RA). Although the complex pathogenic processes of RA remain unclear, studies on Tregs in RA have achieved substantial progress not only in fundamental research but also in clinical application. This review discusses the current knowledge of the characterizations, functions, and molecular mechanisms of Tregs in the pathogenesis of RA, and potential therapies for these disorders are also involved.
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Affiliation(s)
- Xiaoya Li
- The Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing, China.,Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Huihui Xu
- Beijing Key Laboratory of Research of Chinese Medicine on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jing Huang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Dan Luo
- Department of Ophthalmology, Traditional Chinese Medicine Hospital of Changping District, Beijing, China
| | - Shuang Lv
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Xiangchen Lu
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China.,School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Cheng Xiao
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China.,Department of Emergency, China-Japan Friendship Hospital, Beijing, China
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15
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Targeting immunosuppressor cells with nanoparticles in autoimmunity: How far have we come to? Cell Immunol 2021; 368:104412. [PMID: 34340162 DOI: 10.1016/j.cellimm.2021.104412] [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: 03/21/2021] [Revised: 07/20/2021] [Accepted: 07/23/2021] [Indexed: 12/24/2022]
Abstract
Autoimmunity is the assault of immune response towards self-antigens, resulting to inflammation and tissue injury. It is staged into three phases and caused by malfunction of immune tolerance. In our body, immune tolerance is synchronized by several immunosuppressor cells such as regulatory T cells and B cells as well as myeloid-derived suppressor cells, which are prominently dysregulated in autoimmunity. Hence, targeting these cell populations serve as a significant potential in the therapy of autoimmunity. Nanotechnology with its advantageous properties is shown to be a remarkable tool as drug delivery system in this field. This review focused on the development of therapeutics in autoimmune diseases utilizing various nanoparticles formulation based on two targeting approaches in autoimmunity, passive and active targeting. Lastly, this review outlined the approved present nanomedicines as well as in clinical evaluations and issues regarding the lack of translation of these nanomedicines into the market, despite the abundant of positive experimental observations.
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16
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Jiang Q, Yang G, Liu Q, Wang S, Cui D. Function and Role of Regulatory T Cells in Rheumatoid Arthritis. Front Immunol 2021; 12:626193. [PMID: 33868244 PMCID: PMC8047316 DOI: 10.3389/fimmu.2021.626193] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 03/15/2021] [Indexed: 12/12/2022] Open
Abstract
Rheumatoid arthritis (RA) is a systemic and heterogeneous autoimmune disease with symmetrical polyarthritis as its critical clinical manifestation. The basic cause of autoimmune diseases is the loss of tolerance to self or harmless antigens. The loss or functional deficiency of key immune cells, regulatory T (Treg) cells, has been confirmed in human autoimmune diseases. The pathogenesis of RA is complex, and the dysfunction of Tregs is one of the proposed mechanisms underlying the breakdown of self-tolerance leading to the progression of RA. Treg cells are a vital component of peripheral immune tolerance, and the transcription factor Foxp3 plays a major immunosuppressive role. Clinical treatment for RA mainly utilizes drugs to alleviate the progression of disease and relieve disease activity, and the ideal treatment strategy should be to re-induce self-tolerance before obvious tissue injury. Treg cells are one of the ideal options. This review will introduce the classification, mechanism of action, and characteristics of Treg cells in RA, which provides insights into clinical RA treatment.
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Affiliation(s)
- Qi Jiang
- Department of Blood Transfusion, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Guocan Yang
- Department of Blood Transfusion, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Qi Liu
- Department of Blood Transfusion, Shaoxing People's Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Shengjun Wang
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China.,Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Dawei Cui
- Department of Blood Transfusion, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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17
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The role of myeloid-derived suppressor cells in rheumatoid arthritis: An update. Life Sci 2021; 269:119083. [PMID: 33482191 DOI: 10.1016/j.lfs.2021.119083] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/27/2020] [Accepted: 01/14/2021] [Indexed: 12/12/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease that generally affects the joints. In the late stages of the disease, it can be associated with several complications. Although the exact etiology of RA is unknown, various studies have been performed to understand better the immunological mechanisms involved in the pathogenesis of RA. At the onset of the disease, various immune cells migrate to the joints and increase the recruitment of immune cells to the joints by several immunological mediators such as cytokines and chemokines. The function of specific immune cells in RA is well-established. The shift of immune responses to Th1 or Th17 is one of the most essential factors in the development of RA. Myeloid-derived suppressor cells (MDSCs), as a heterogeneous population of myeloid cells, play a regulatory role in the immune system that inhibits T cell activity through several mechanisms. Various studies have been performed on the function of these cells in RA, which in some cases have yielded conflicting results. Therefore, the purpose of this review article is to comprehensively understand the pro-inflammatory and anti-inflammatory functions of MDSCs in the pathogenesis of RA.
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18
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Shevyrev D, Tereshchenko V, Kozlov V, Sizikov A, Chumasova O, Koksharova V. T-regulatory cells from patients with rheumatoid arthritis retain suppressor functions in vitro. Exp Ther Med 2021; 21:209. [PMID: 33500700 PMCID: PMC7818555 DOI: 10.3892/etm.2021.9641] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 07/27/2020] [Indexed: 12/18/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic disease of connective tissue caused by intolerance to self-antigens. Regulatory T cells (Tregs) are key players in maintaining autotolerance through a variety of suppressor mechanisms. RA is generally believed to develop due to disorders in Tregs; however, there is no consensus on this issue. Thus, the present study focused on phenotypical analysis of Treg cells and their ability to suppress CD4+ and CD8+ cell proliferation. The present study used peripheral blood samples from 21 patients with RA and 22 healthy donors. The CD25+FoxP3+ subpopulation of Tregs was analyzed using flow cytometry to evaluate the expression of CTLA-4, PD-L1, HLA-DR, CCR4, CD86 and RORyt. Tregs suppressor activity was calculated in terms of suppression of the proliferation of CD4+ and CD8+ lymphocytes in vitro. Suppressor activity of the total Treg population did not differ between patients with RA and healthy donors. However, the patients had elevated CD25loFoxP3+ levels and lower CD25hiFoxP3+ levels; in addition, they had more activated Tregs expressing PD-L1, HLA-DR, CCR4 and CD86. The surface expression of CTLA-4 was below the reference level. The patients also had transitional FoxP3+RORyt+ cells and elevated CD4+RORyt+ levels, which were highly correlated with disease activity. These results show that in RA, Treg cells are activated and have an immunosuppressive activity. However, it is the transitional FoxP3+RORyt+ cells and increased CD4+RORyt+ percentages in peripheral blood that appear to be associated with the pathological conversion of some Treg cells into Th-17. This process appears to be key in RA pathogenesis.
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Affiliation(s)
- Daniil Shevyrev
- Laboratory of Clinical Immunopathology, Federal State Budgetary Scientific Institution, Research Institute of Fundamental and Clinical Immunology, Novosibirsk 630099, Russia
| | - Valeriy Tereshchenko
- Laboratory of Molecular Immunology, Federal State Budgetary Scientific Institution, Research Institute of Fundamental and Clinical Immunology, Novosibirsk 630099, Russia
| | - Vladimir Kozlov
- Laboratory of Clinical Immunopathology, Federal State Budgetary Scientific Institution, Research Institute of Fundamental and Clinical Immunology, Novosibirsk 630099, Russia
| | - Alexey Sizikov
- Rheumatology Department, Federal State Budgetary Scientific Institution, Research Institute of Fundamental and Clinical Immunology, Novosibirsk 630099, Russia
| | - Oksana Chumasova
- Rheumatology Department, Federal State Budgetary Scientific Institution, Research Institute of Fundamental and Clinical Immunology, Novosibirsk 630099, Russia
| | - Veroniсa Koksharova
- Rheumatology Department, Federal State Budgetary Scientific Institution, Research Institute of Fundamental and Clinical Immunology, Novosibirsk 630099, Russia
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19
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Pseudomonas aeruginosa Infection Impairs NKG2D-Dependent NK Cell Cytotoxicity through Regulatory T-Cell Activation. Infect Immun 2020; 88:IAI.00363-20. [PMID: 32928966 DOI: 10.1128/iai.00363-20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/08/2020] [Indexed: 12/31/2022] Open
Abstract
Natural killer (NK) cells play a key role in both antibacterial and antitumor immunity. Pseudomonas aeruginosa infection has already been reported to alter NK cell functions. We studied in vitro the effect of P. aeruginosa on NK cell cytotoxic response (CD107a membrane expression) to a lymphoma cell line. Through positive and negative cell sorting and adoptive transfer, we determined the influence of monocytes, lymphocytes, and regulatory T cells (Treg) on NK cell function during P. aeruginosa infection. We also studied the role of the activating receptor natural killer group 2D (NKG2D) in NK cell response to B221. We determined that P. aeruginosa significantly altered both cytotoxic response to B221 and NKG2D expression on NK cells in a Treg-dependent manner and that the NKG2D receptor was involved in NK cell cytotoxic response to B221. Our results also suggested that during P. aeruginosa infection, monocytes participated in Treg-mediated NK cell alteration. In conclusion, P. aeruginosa infection impairs NK cell cytotoxicity and alters antitumor immunity. These results highlight the strong interaction between bacterial infection and immunity against cancer.
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20
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Miao J, Zhang K, Zheng Z, Zhang R, Lv M, Guo N, Xu Y, Han Q, Chen Z, Zhu P. CD147 Expressed on Memory CD4 + T Cells Limits Th17 Responses in Patients With Rheumatoid Arthritis. Front Immunol 2020; 11:545980. [PMID: 33193313 PMCID: PMC7655988 DOI: 10.3389/fimmu.2020.545980] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 10/06/2020] [Indexed: 01/08/2023] Open
Abstract
Rheumatoid arthritis (RA) is a common autoimmune disease in which T helper-type 17 (Th17) cells have been critically involved. CD147 is a T cell activation-associated molecule and is involved in T cell development. However, it remains unclear whether CD147 participates in Th17 responses in RA patients. In this study, we demonstrated that in both the RA and healthy controls (HC) groups, CD147 expression on CD4+ T cells was increased in CCR6+ and CD161+ subsets, and was associated with IL-17 production. Ligation of CD147 with its monoclonal antibody (mAb) strongly inhibited Th17 responses, and knock down of CD147 expression on CD4+ Tm cells specifically enhanced Th17 responses, triggered by coculture with in vitro activated monocytes from HC. Further functional studies showed that anti-CD147 mAb decreased the activation of AKT, mTORC1 and STAT3 signaling, which is known to enhance Th17 responses. Ligation of CD147 with its mAb on CD4+ Tm cells specifically reduced Th17 responses induced by in vitro or in vivo activated monocytes from RA patients. In collagen-induced arthritis model, anti-CD147 mAb treatment reduced the Th17 levels and severity of arthritis in vivo. These data suggest that CD147 plays a negative role in regulating human Th17 responses. Anti-CD147 mAb can limit the extraordinary proliferation of Th17 cells and may be a new therapeutic option in RA.
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Affiliation(s)
- Jinlin Miao
- Department of Clinical Immunology, PLA Specialized Research Institute of Rheumatology & Immunology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China.,National Translational Science Center for Molecular Medicine & Department of Cell Biology, The Fourth Military Medical University, Xi'an, China
| | - Kui Zhang
- Department of Clinical Immunology, PLA Specialized Research Institute of Rheumatology & Immunology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Zhaohui Zheng
- Department of Clinical Immunology, PLA Specialized Research Institute of Rheumatology & Immunology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Rui Zhang
- Department of Clinical Immunology, PLA Specialized Research Institute of Rheumatology & Immunology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Minghua Lv
- Department of Clinical Immunology, PLA Specialized Research Institute of Rheumatology & Immunology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Na Guo
- Department of Clinical Immunology, PLA Specialized Research Institute of Rheumatology & Immunology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yingming Xu
- Department of Clinical Immunology, PLA Specialized Research Institute of Rheumatology & Immunology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Qing Han
- Department of Clinical Immunology, PLA Specialized Research Institute of Rheumatology & Immunology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Zhinan Chen
- National Translational Science Center for Molecular Medicine & Department of Cell Biology, The Fourth Military Medical University, Xi'an, China
| | - Ping Zhu
- Department of Clinical Immunology, PLA Specialized Research Institute of Rheumatology & Immunology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
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21
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Scheinecker C, Göschl L, Bonelli M. Treg cells in health and autoimmune diseases: New insights from single cell analysis. J Autoimmun 2019; 110:102376. [PMID: 31862128 DOI: 10.1016/j.jaut.2019.102376] [Citation(s) in RCA: 114] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 11/22/2019] [Indexed: 02/07/2023]
Abstract
Autoimmune diseases, such as Systemic Lupus Erythematosus (SLE) or Rheumatoid Arthritis (RA) are characterized by the breakdown of immunological tolerance. Defects of regulatory T cells have been described among the various mechanisms, that are important for the development of autoimmune diseases, due to their critical role as regulators of peripheral immune tolerance and homeostasis. Initially T suppressor cells have been described as one population of peripheral T cells. Based on new technological advances a new understanding of the heterogeneity of different Treg cell populations in the lymphoid and non-lymphoid tissue has evolved over the last years. While initially Foxp3 has been defined as the main master regulator of Treg cells, we have learned that Treg cells from various tissue can be identified by a specific transcriptomic and epigenetic signature. Epigenetic mechanisms allow Treg cell stability, but we have also learned that certain Treg subsets are plastic and can under specific circumstances even enhance autoimmunity and inflammatory processes. Quantitative and functional defects of Treg cells have been observed in a variety of autoimmune diseases. Due to our understanding of the nature of this cell population, Treg cells have been a target of new Treg based therapies, such as low-dose IL-2. In addition, ongoing clinical trials aim to test safety and efficacy of transferred, in vitro expanded Treg cells in patients with autoimmune diseases and transplant patients.
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Affiliation(s)
- Clemens Scheinecker
- Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria.
| | - Lisa Göschl
- Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria.
| | - Michael Bonelli
- Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria.
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22
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Göschl L, Scheinecker C, Bonelli M. Treg cells in autoimmunity: from identification to Treg-based therapies. Semin Immunopathol 2019; 41:301-314. [PMID: 30953162 DOI: 10.1007/s00281-019-00741-8] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/22/2019] [Indexed: 12/27/2022]
Abstract
Regulatory (Treg) cells are key regulators of inflammation and important for immune tolerance and homeostasis. A major progress has been made in the identification and classification of Treg cells. Due to technological advances, we have gained deep insights in the epigenetic regulation of Treg cells. The use of fate reporter mice allowed addressing the functional consequences of loss of Foxp3 expression. Depending on the environment Treg cells gain effector functions upon loss of Foxp3 expression. However, the traditional view that Treg cells become necessarily pathogenic by gaining effector functions was challenged by recent findings and supports the notion of Treg cell lineage plasticity. Treg cell stability is also a major issue for Treg cell therapies. Clinical trials are designed to use polyclonal Treg cells as therapeutic tools. Here, we summarize the role of Treg cells in selected autoimmune diseases and recent advances in the field of Treg targeted therapies.
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Affiliation(s)
- Lisa Göschl
- Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Clemens Scheinecker
- Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Michael Bonelli
- Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria.
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23
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Cammarata I, Martire C, Citro A, Raimondo D, Fruci D, Melaiu O, D'Oria V, Carone C, Peruzzi G, Cerboni C, Santoni A, Sidney J, Sette A, Paroli M, Caccavale R, Milanetti E, Riminucci M, Timperi E, Piconese S, Manzo A, Montecucco C, Scrivo R, Valesini G, Cariani E, Barnaba V. Counter-regulation of regulatory T cells by autoreactive CD8 + T cells in rheumatoid arthritis. J Autoimmun 2019; 99:81-97. [PMID: 30777378 DOI: 10.1016/j.jaut.2019.02.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/05/2019] [Accepted: 02/05/2019] [Indexed: 12/21/2022]
Abstract
The mechanisms whereby autoreactive T cells escape peripheral tolerance establishing thus autoimmune diseases in humans remain an unresolved question. Here, we demonstrate that autoreactive polyfunctional CD8+ T cells recognizing self-antigens (i.e., vimentin, actin cytoplasmic 1, or non-muscle myosin heavy chain 9 epitopes) with high avidity, counter-regulate Tregs by killing them, in a consistent percentage of rheumatoid arthritis (RA) patients. Indeed, these CD8+ T cells express a phenotype and gene profile of effector (eff) cells and, upon antigen-specific activation, kill Tregs indirectly in an NKG2D-dependent bystander fashion in vitro. This data provides a mechanistic basis for the finding showing that AE-specific (CD107a+) CD8+ T killer cells correlate, directly with the disease activity score, and inversely with the percentage of activated Tregs, in both steady state and follow-up studies in vivo. In addition, multiplex immunofluorescence imaging analyses of inflamed synovial tissues in vivo show that a remarkable number of CD8+ T cells express granzyme-B and selectively contact FOXP3+ Tregs, some of which are in an apoptotic state, validating hence the possibility that CD8+ Teff cells can counteract neighboring Tregs within inflamed tissues, by killing them. Alternatively, the disease activity score of a different subset of patients is correlated with the expansion of a peculiar subpopulation of autoreactive low avidity, partially-activated (pa)CD8+ T cells that, despite they conserve the conventional naïve (N) phenotype, produce high levels of tumor necrosis factor (TNF)-α and exhibit a gene expression signature of a progressive activation state. Tregs directly correlate with the expansion of this autoreactive (low avidity) paCD8+ TN cell subset in vivo, and efficiently control their differentiation rather their proliferation in vitro. Interestingly, autoreactive high avidity CD8+ Teff cells or low avidity paCD8+ TN cells are significantly expanded in RA patients who would become non-responders or patients who would become responders to TNF-α inhibitor therapy, respectively. These data provide evidence of a previously undescribed role of such mechanisms in the progression and therapy of RA.
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Affiliation(s)
- Ilenia Cammarata
- Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, 00161, Rome, Italy
| | - Carmela Martire
- Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, 00161, Rome, Italy
| | - Alessandra Citro
- Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, 00161, Rome, Italy
| | - Domenico Raimondo
- Dipartimento di Medicina Molecolare, Sapienza Università di Roma, 00161, Rome, Italy
| | - Doriana Fruci
- Dipartimento di Ematologia/Oncologia, Ospedale Pediatrico Bambino Gesù, IRCCS, 00165 Rome, Italy
| | - Ombretta Melaiu
- Dipartimento di Ematologia/Oncologia, Ospedale Pediatrico Bambino Gesù, IRCCS, 00165 Rome, Italy; Dipartimento di Biologia, Università di Pisa, 56126, Pisa, Italy
| | - Valentina D'Oria
- Core Facility Research Laboratories, Ospedale Pediatrico Bambino Gesù, IRCCS, 00165, Rome, Italy
| | - Chiara Carone
- Ospedale Civile S. Agostino-Estense, 41126, Modena, Italy
| | - Giovanna Peruzzi
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, 00161, Rome, Italy
| | - Cristina Cerboni
- Dipartimento di Medicina Molecolare, Sapienza Università di Roma, 00161, Rome, Italy; Istituto Pasteur - Fondazione Cenci Bolognetti, 00185, Rome, Italy
| | - Angela Santoni
- Dipartimento di Medicina Molecolare, Sapienza Università di Roma, 00161, Rome, Italy; Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, 00161, Rome, Italy; Istituto Pasteur - Fondazione Cenci Bolognetti, 00185, Rome, Italy
| | - John Sidney
- La Jolla Institute for Allergy and Immunology, San Diego, CA, 92121, USA
| | - Alessandro Sette
- La Jolla Institute for Allergy and Immunology, San Diego, CA, 92121, USA
| | - Marino Paroli
- Dipartimento di Scienze e Biotecnologie Medico-Chirurgiche, Sapienza Università di Roma, Polo Pontino, 04100, Latina, Italy
| | - Rosalba Caccavale
- Dipartimento di Scienze e Biotecnologie Medico-Chirurgiche, Sapienza Università di Roma, Polo Pontino, 04100, Latina, Italy
| | - Edoardo Milanetti
- Dipartimento di Fisica, Sapienza Università di Roma, 00185, Rome, Italy
| | - Mara Riminucci
- Dipartimento di Medicina Molecolare, Sapienza Università di Roma, 00161, Rome, Italy
| | - Eleonora Timperi
- Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, 00161, Rome, Italy
| | - Silvia Piconese
- Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, 00161, Rome, Italy; Istituto Pasteur - Fondazione Cenci Bolognetti, 00185, Rome, Italy
| | - Antonio Manzo
- Dipartimento di Medicina Interna e Terapia Medica, Fondazione IRCCS Policlinico "San Matteo", Università di Pavia, 27100, Pavia, Italy
| | - Carlomaurizio Montecucco
- Dipartimento di Medicina Interna e Terapia Medica, Fondazione IRCCS Policlinico "San Matteo", Università di Pavia, 27100, Pavia, Italy
| | - Rossana Scrivo
- Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, 00161, Rome, Italy
| | - Guido Valesini
- Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, 00161, Rome, Italy
| | | | - Vincenzo Barnaba
- Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università di Roma, 00161, Rome, Italy; Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, 00161, Rome, Italy; Istituto Pasteur - Fondazione Cenci Bolognetti, 00185, Rome, Italy.
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24
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Jung MK, Lee JS, Kwak JE, Shin EC. Tumor Necrosis Factor and Regulatory T Cells. Yonsei Med J 2019; 60:126-131. [PMID: 30666833 PMCID: PMC6342721 DOI: 10.3349/ymj.2019.60.2.126] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 11/17/2018] [Accepted: 11/17/2018] [Indexed: 12/13/2022] Open
Abstract
CD4⁺CD25⁺FoxP3⁺ regulatory T (Treg) cells play major roles in the maintenance of immune homeostasis. In this review, we comprehensively describe the relationship between tumor necrosis factor (TNF) and Treg cells, focusing on the effects of TNF on Treg cells and on TNF-producing Treg cells. Contradictory results have been reported for the effect of TNF on the suppressive activity of Treg cells. In patients with rheumatoid arthritis, TNF has been shown to reduce the suppressive activity of Treg cells. Meanwhile, however, TNF has also been reported to maintain the suppressive activity of Treg cells via a TNFR2-mediated mechanism. In addition, Treg cells have been found to acquire the ability to produce TNF under inflammatory conditions, such as acute viral hepatitis. These TNF-producing Treg cells exhibit T helper 17-like features and hold significance in various human diseases.
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Affiliation(s)
- Min Kyung Jung
- Laboratory of Immunology and Infectious Diseases, Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Jeong Seok Lee
- Laboratory of Immunology and Infectious Diseases, Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Jeong Eun Kwak
- BioMedical Science and Engineering Interdisciplinary Program, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Eui Cheol Shin
- Laboratory of Immunology and Infectious Diseases, Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
- BioMedical Science and Engineering Interdisciplinary Program, Korea Advanced Institute of Science and Technology, Daejeon, Korea.
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25
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Milward K, Hester J, Wood KJ. Isolation of Human Regulatory T Lymphocytes by Fluorescence-Activated Cell Sorting. Methods Mol Biol 2019; 1899:43-54. [PMID: 30649764 DOI: 10.1007/978-1-4939-8938-6_4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Regulatory T cells (Tregs) are a population of lymphocytes that exerts suppressive effects upon the immune system. In human peripheral blood, the major population of T lymphocytes with suppressive capacity are defined by expression of the T cell co-receptor CD4 and the interleukin-2 receptor α-chain (CD25), combined with minimal expression of the interleukin-7 receptor α subunit (CD127). We begin by outlining the method for isolating peripheral blood mononuclear cells (PBMCs) from human blood by centrifugation of whole blood overlayed on a hydrophilic polysaccharide, with an additional erythrocyte lysis step. The protocol that follows utilizes Fluorescence-Activated Cell Sorting (FACS) for the isolation of this CD4+CD25+CD127lo population of regulatory T cells, with high yield and purity, from immunostained PBMCs. Prior to FACS isolation, this protocol exploits magnetic immunoselection for pre-enrichment of CD25+ PBMC, which reduces the duration of the subsequent FACS isolation.
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Affiliation(s)
- Kate Milward
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Joanna Hester
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Kathryn J Wood
- Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, UK.
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26
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Li M, Zhu D, Wang T, Xia X, Tian J, Wang S. Roles of Myeloid-Derived Suppressor Cell Subpopulations in Autoimmune Arthritis. Front Immunol 2018; 9:2849. [PMID: 30564242 PMCID: PMC6288996 DOI: 10.3389/fimmu.2018.02849] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 11/19/2018] [Indexed: 12/29/2022] Open
Abstract
Emerging evidence suggests the promise of the use of myeloid-derived suppressor cells (MDSCs) in inflammatory disorders based on their unique immune-intervention properties. However, the roles of MDSCs in autoimmune arthritis are not completely understood. Indeed, their immunosuppressive functions in arthritic conditions remain controversial, with heterogeneity among MDSCs and differential effects among subpopulations receiving much attention. As a result, it is necessary to determine the roles of MDSC subpopulations in autoimmune arthritis to clarify their diagnostic and therapeutic potential. Interestingly, in the inflammation niche of autoimmune arthritis, each MDSC subpopulation can exhibit both alternatives of a given characteristic. Moreover, polymorphonuclear MDSCs (PMN-MDSCs) are likely to be more suppressive and stable compared with monocytic MDSCs (MO-MDSCs). Although various important cytokines associated with the differentiation of MDSCs or MDSC subpopulations from immature myeloid precursors, such as granulocyte colony-stimulating factor (G-CSF), have been largely applied in external inductive systems, their roles are not entirely clear. Moreover, MDSC-based clinical treatments in rheumatoid arthritis (RA) continue to represent a significant challenge, as also reported for other autoimmune diseases. In this review, we describe the effects and actions of MDSC subpopulations on the development of autoimmune arthritis and analyze several types of MDSC-based therapeutic strategies to provide comprehensive information regarding immune networks and a foundation for more effective protocols for autoimmune arthritis.
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Affiliation(s)
- Min Li
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China.,Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Dongwei Zhu
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Tingting Wang
- Department of Laboratory Medicine, Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Children's Hospital, Wuxi, China
| | - Xueli Xia
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Jie Tian
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Shengjun Wang
- Department of Laboratory Medicine, The Affiliated People's Hospital, Jiangsu University, Zhenjiang, China.,Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
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27
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Sousa L, Martín-Sierra C, Pereira C, Loureiro G, Tavares B, Pedreiro S, Martinho A, Paiva A. Subcutaneous immunotherapy induces alterations in monocytes and dendritic cells homeostasis in allergic rhinitis patients. Allergy Asthma Clin Immunol 2018; 14:45. [PMID: 30459816 PMCID: PMC6236941 DOI: 10.1186/s13223-018-0271-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 06/14/2018] [Indexed: 02/07/2023] Open
Abstract
Background Specific subcutaneous immunotherapy (SCIT) can achieve long-term remission in patients with allergic rhinitis (AR) through complex and still unknown mechanisms. The aim of this study is to evaluate the effect of SCIT over CD16+ and CD16− monocytes, myeloid (mDCs) and plasmacytoid dendritic cells (pDCs) in patients with AR, comparatively to pharmacological standard treatment (non-SIT). Methods The relative frequency and absolute number of monocytes and DC subsets, the frequency of these cells producing TNFα after in vitro stimulation with Dermatophagoides pteronyssinus (Dpt) extract, and the expression levels of receptor-bound IgE or IgG were assessed by flow cytometry, in peripheral blood samples from 23 healthy individuals (HG) and 43 participants with AR mono-sensitized to Dpt; 10 with non-SIT treatment and 33 under SCIT, just before (SCIT-T0) and 4 h after administration (SCIT-T4). Moreover, IFNα mRNA expression was evaluated in purified pDCs, by qRT-PCR. Results After SCIT administration we observed a strong decrease of circulating pDCs, although accompanied by higher levels of IFNα mRNA expression, and an increase of circulating CD16+ monocytes. AR participants under SCIT exhibited a higher expression of receptor-bound IgE in all cell populations that expressed the high affinity receptor for IgE (FcεRI) and a higher frequency of CD16+ monocytes producing TNFα. Conversely, we observed a decrease in the frequency of mDCs producing TNFα in AR under SCIT, similar to the observed in the control group. Conclusions SCIT seems to induce numeric, phenotypic, and functional changes in circulating monocytes and dendritic cells, contributing at least in part to the well described immunological alterations induced by this type of immunotherapy.
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Affiliation(s)
- Letícia Sousa
- 1Stemlab, S.A, Biocant Park, Núcleo 4, Lote 2, Cantanhede, Portugal
| | - Carmen Martín-Sierra
- 2Flow Cytometry Unit, Clinical Pathology Service, Centro Hospitalar e Universitário de Coimbra, Praceta Prof. Mota Pinto, Ed. S. Jerónimo, 3° piso, 30001-301 Coimbra, Portugal
| | - Celso Pereira
- 3Immunoallergology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Graça Loureiro
- 3Immunoallergology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Beatriz Tavares
- 3Immunoallergology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Susana Pedreiro
- 2Flow Cytometry Unit, Clinical Pathology Service, Centro Hospitalar e Universitário de Coimbra, Praceta Prof. Mota Pinto, Ed. S. Jerónimo, 3° piso, 30001-301 Coimbra, Portugal
| | - António Martinho
- Portuguese Institute of Blood and Transplantation, Coimbra, Portugal
| | - Artur Paiva
- 2Flow Cytometry Unit, Clinical Pathology Service, Centro Hospitalar e Universitário de Coimbra, Praceta Prof. Mota Pinto, Ed. S. Jerónimo, 3° piso, 30001-301 Coimbra, Portugal.,5CIMAGO-Center of Investigation on Environment Genetics and Oncobiology, Faculdade de Medicina da Universidade de Coimbra, Coimbra, Portugal
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28
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Lam IKY, Chow JX, Lau CS, Chan VSF. MicroRNA-mediated immune regulation in rheumatic diseases. Cancer Lett 2018; 431:201-212. [PMID: 29859876 DOI: 10.1016/j.canlet.2018.05.044] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/11/2018] [Accepted: 05/28/2018] [Indexed: 12/20/2022]
Abstract
MicroRNAs (miRNAs) are endogenous small, non-coding RNAs that regulate genome expression at the post-transcriptional level. They are involved in a wide range of physiological processes including the maintenance of immune homeostasis and normal function. Accumulating evidence from animal studies show that alterations in pan or specific miRNA expression would break immunological tolerance, leading to autoimmunity. Differential miRNA expressions have also been documented in patients of many autoimmune disorders. In this review, we highlight the evidence that signifies the critical role of miRNAs in autoimmunity, specifically on their regulatory roles in the pathogenesis of several rheumatic diseases including systemic lupus erythematosus, rheumatoid arthritis and spondyloarthritis. The potential of miRNAs as biomarkers and therapeutic targets is also discussed. Manipulation of dysregulated miRNAs in vivo through miRNA delivery or inhibition offers promise for new therapeutic strategies in treating rheumatic diseases.
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Affiliation(s)
- Ian Kar Yin Lam
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Jia Xin Chow
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Chak Sing Lau
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Vera Sau Fong Chan
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region.
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29
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Miao J, Zhu P. Functional Defects of Treg Cells: New Targets in Rheumatic Diseases, Including Ankylosing Spondylitis. Curr Rheumatol Rep 2018; 20:30. [PMID: 29663162 DOI: 10.1007/s11926-018-0729-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
PURPOSE OF REVIEW This study aims to review the advances of Treg cell biology, the functional defects of Treg cells, and the potential strategies for the experimental, preclinical or clinical application of Treg cell therapy in the context of autoimmune/immune-mediated rheumatic diseases. RECENT FINDINGS CD4+CD25+ regulatory T (Treg) cells are a phenotypically and functionally heterogeneous subset of lymphocytes that prevent a variety of autoimmune diseases. As in many autoimmune diseases, the functional defects of Treg cells are supposed to play relevant roles in the pathogenesis and development of systemic lupus erythematosus, rheumatoid arthritis, ankylosing spondylitis, and other autoimmune/immune-mediated rheumatic diseases. Consequently, manipulation and modulation of Treg cells represent a potent strategy for therapeutic benefit in many such diseases. A further understanding of the functional defects of Treg cells in rheumatic diseases will contribute to find new targets and therapies in rheumatic diseases, including ankylosing spondylitis.
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Affiliation(s)
- Jinlin Miao
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, No. 127 West Changle Road, Xi'an, 710032, Shaanxi Province, People's Republic of China
| | - Ping Zhu
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, No. 127 West Changle Road, Xi'an, 710032, Shaanxi Province, People's Republic of China.
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30
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Osteoclast Formation within a Human Co-Culture System on Bone Material as an In Vitro Model for Bone Remodeling Processes. J Funct Morphol Kinesiol 2018. [DOI: 10.3390/jfmk3010017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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31
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Kaneko S, Kondo Y, Yokosawa M, Furuyama K, Segawa S, Tsuboi H, Kanamori A, Matsumoto I, Yamazaki M, Sumida T. The RORγt-CCR6-CCL20 axis augments Th17 cells invasion into the synovia of rheumatoid arthritis patients. Mod Rheumatol 2018; 28:814-825. [PMID: 29251019 DOI: 10.1080/14397595.2017.1416923] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES To clarify the pathogenic role of transcription factor expression of CD4 + T helper (Th) cell subsets in the development of rheumatoid arthritis (RA). METHODS We collected CD4 + T cells from peripheral blood mononuclear cells (PBMCs) and synovial fluid mononuclear cells (SFMCs) by magnetic cell sorting. The proportion of Th cell subsets were classified from cell surface markers (CD45RA, CXCR5, CXCR3, CCR6) and the expression of their transcription factors (T-bet, GATA3, RORγt) were analyzed by flow cytometry before and at 24 weeks after anti-rheumatic treatment. Chemotaxis assays quantified migratory ability. RESULTS The expression of CCR6 and RORγt in Th17 cells from PBMC of RA patients was significantly higher than in healthy control volunteers and osteoarthritis patients. The proportion of Th17 cells in SFMCs of RA patients was significantly higher than that in PBMCs. Chemotaxis assays revealed that the migration index of Th17 cells towards CCL20 was remarkably enhanced in RA patients. The expression of CCR6 and RORγt in Th17 cells at 24 weeks post-therapeutic intervention was significantly decreased compared to before treatment. CONCLUSION The high expression of RORγt might facilitate the migration of Th17 cells to inflamed joints via the enhanced expression of CCR6 and contribute to the pathology of RA.
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Affiliation(s)
- Shunta Kaneko
- a Department of Internal Medicine, Faculty of Medicine , University of Tsukuba , Tsukuba , Japan
| | - Yuya Kondo
- a Department of Internal Medicine, Faculty of Medicine , University of Tsukuba , Tsukuba , Japan
| | - Masahiro Yokosawa
- a Department of Internal Medicine, Faculty of Medicine , University of Tsukuba , Tsukuba , Japan
| | - Kotona Furuyama
- a Department of Internal Medicine, Faculty of Medicine , University of Tsukuba , Tsukuba , Japan
| | - Seiji Segawa
- a Department of Internal Medicine, Faculty of Medicine , University of Tsukuba , Tsukuba , Japan
| | - Hiroto Tsuboi
- a Department of Internal Medicine, Faculty of Medicine , University of Tsukuba , Tsukuba , Japan
| | - Akihiro Kanamori
- b Department of Orthopedic Surgery, Faculty of Medicine , University of Tsukuba , Tsukuba , Japan
| | - Isao Matsumoto
- a Department of Internal Medicine, Faculty of Medicine , University of Tsukuba , Tsukuba , Japan
| | - Masashi Yamazaki
- b Department of Orthopedic Surgery, Faculty of Medicine , University of Tsukuba , Tsukuba , Japan
| | - Takayuki Sumida
- a Department of Internal Medicine, Faculty of Medicine , University of Tsukuba , Tsukuba , Japan
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32
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Alivernini S, Gremese E, McSharry C, Tolusso B, Ferraccioli G, McInnes IB, Kurowska-Stolarska M. MicroRNA-155-at the Critical Interface of Innate and Adaptive Immunity in Arthritis. Front Immunol 2018; 8:1932. [PMID: 29354135 PMCID: PMC5760508 DOI: 10.3389/fimmu.2017.01932] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 12/15/2017] [Indexed: 12/17/2022] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that fine-tune the cell response to a changing environment by modulating the cell transcriptome. miR-155 is a multifunctional miRNA enriched in cells of the immune system and is indispensable for the immune response. However, when deregulated, miR-155 contributes to the development of chronic inflammation, autoimmunity, cancer, and fibrosis. Herein, we review the evidence for the pathogenic role of miR-155 in driving aberrant activation of the immune system in rheumatoid arthritis, and its potential as a disease biomarker and therapeutic target.
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Affiliation(s)
- Stefano Alivernini
- Institute of Rheumatology - Fondazione Policlinico Universitario A. Gemelli, Catholic University of the Sacred Heart, Rome, Italy
| | - Elisa Gremese
- Institute of Rheumatology - Fondazione Policlinico Universitario A. Gemelli, Catholic University of the Sacred Heart, Rome, Italy
| | - Charles McSharry
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Barbara Tolusso
- Institute of Rheumatology - Fondazione Policlinico Universitario A. Gemelli, Catholic University of the Sacred Heart, Rome, Italy
| | - Gianfranco Ferraccioli
- Institute of Rheumatology - Fondazione Policlinico Universitario A. Gemelli, Catholic University of the Sacred Heart, Rome, Italy
| | - Iain B McInnes
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.,Rheumatoid Arthritis Pathogenesis Centre of Excellence (RACE), Glasgow, United Kingdom
| | - Mariola Kurowska-Stolarska
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom.,Rheumatoid Arthritis Pathogenesis Centre of Excellence (RACE), Glasgow, United Kingdom
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33
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Greenwald M, Ball J, Deodar A. A mode of error: Immunoglobulin binding protein (a subset of anti-citrullinated proteins) can cause false positive tuberculosis test results in rheumatoid arthritis. J Clin Tuberc Other Mycobact Dis 2017; 9:5-9. [PMID: 31723711 PMCID: PMC6850227 DOI: 10.1016/j.jctube.2017.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 05/16/2017] [Accepted: 08/14/2017] [Indexed: 12/16/2022] Open
Abstract
Citrullinated Immunoglobulin Binding Protein (BiP) is a newly described autoimmune target in rheumatoid arthritis (RA), one of many cyclic citrullinated peptides(CCP or ACPA). BiP is over-expressed in RA patients causing T cell expansion and increased interferon levels during incubation for the QuantiFERON-Gold tuberculosis test (QFT-G TB). The QFT-G TB has never been validated where interferon is increased by underlying disease, as for example RA. Of ACPA-positive RA patients (n = 126), we found a 13% false-positive TB test rate by QFT-G TB. Despite subsequent biologic therapy for 3 years of all 126 RA patients, none showed evidence of TB without INH. Most of the false-positive RA patients after treatment with biologic therapy reverted to a negative QFT-G test. False TB tests correlated with ACPA level (p < 0.02). Three healthy women without arthritis or TB exposure had negative QFT-G TB. In vitro, all three tested positive every time for TB correlating to the dose of BiP or anti-BiP added, at 2 ug/ml, 5 ug/ml, 10 ug/ml, and 20 ug/ml. BiP naturally found in the majority of ACPA-positive RA patients can result in a false positive QFT-G TB. Subsequent undertreatment of RA, if biologic therapy is withheld, and overtreatment of presumed latent TB may harm patients.
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Affiliation(s)
- Maria Greenwald
- Maria Greenwald, MD, FACR, Desert Medical Advances, 72855 Fred Waring Dr., suite A6 Palm Desert, CA 92260, United States
| | - JoAnn Ball
- Maria Greenwald, MD, FACR, Desert Medical Advances, 72855 Fred Waring Dr., suite A6 Palm Desert, CA 92260, United States
| | - Atul Deodar
- Maria Greenwald, MD, FACR, Desert Medical Advances, 72855 Fred Waring Dr., suite A6 Palm Desert, CA 92260, United States
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Increased tumor-infiltrating CD45RA -CCR7 - regulatory T-cell subset with immunosuppressive properties foster gastric cancer progress. Cell Death Dis 2017; 8:e3002. [PMID: 28817117 PMCID: PMC5596574 DOI: 10.1038/cddis.2017.388] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 07/07/2017] [Accepted: 07/10/2017] [Indexed: 01/01/2023]
Abstract
Regulatory T cells (Tregs) are major components of tumor-infiltrating immune cells with potent immunosuppressive properties in gastric cancer (GC) microenvironment. However, different subsets of the Tregs and their relevance to GC are unknown. Here, we found that patients with GC showed a significantly higher Tregs infiltration in tumors, and CD45RA−CCR7− Treg subset constituted most tumor-infiltrating Tregs. Tumor-infiltrating CD45RA−CCR7− Treg subset with an effector/memory phenotype accumulated in tumors and expressed low level of HLA-DR. Gastric tumor-derived TNF-α induced CD45RA−CCR7− Treg subset with similar phenotype to their status in tumors and inhibited their HLA-DR expression via activating STAT3 phosphorylation. These tumor-associated CD45RA−CCR7− Treg subset exerted superior immunosuppressive properties to effectively suppress CD8+ T cells’ anti-tumor function including CD8+ T-cell IFN-γ and granzyme B (GrB) production as well as CD8+ T-cell proliferation in vitro, and also contributed to the growth and progression of human gastric tumors in vivo, via IL-10 secretion and cell–cell contact mechanisms. Moreover, increased tumor-infiltrating CD45RA−CCR7− Treg subset as well as higher intratumoral CD45RA−CCR7− Treg/CD8+ T-cell ratio was associated with advanced disease progression and reduced GC patient survival. This study therefore identifies a novel immunosuppressive pathway involving CD45RA−CCR7− Treg subset development within the GC microenvironment. Efforts to inhibit this pathway may therefore prove a valuable strategy to prevent, and to treat this immune suppressive of GC.
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Anticancer properties of a defensin like class IId bacteriocin Laterosporulin10. Sci Rep 2017; 7:46541. [PMID: 28422156 PMCID: PMC5396196 DOI: 10.1038/srep46541] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 03/22/2017] [Indexed: 12/11/2022] Open
Abstract
Laterosporulin10 (LS10) is a defensin like peptide from Brevibacillus sp. strain SKDU10 that inhibited microbial pathogens. However, in this study, anticancer activity of LS10 was examined against different cancer cell lines and compared with normal cells. LS10 displayed cytotoxicity against cancer cells like MCF-7, HEK293T, HT1080, HeLa and H1299 at below 10 μM concentration, but not against prostate epithelium cells RWPE-1. Additionally, no hemolysis was observed at significantly higher concentration compared to IC50 values observed for different cancer cell lines. Release of lactate dehydrogenase from cancer cell lines at 15 μM concentration upon 120 min treatment indicated the lytic ability of LS10. Accordingly, electron microscopy experiments also confirmed the necrotic effect of LS10 at 15 μM concentration against cancer cells. Furthermore, flow cytometry analysis of treated cancer cell lines revealed that LS10 induce apoptosis even at 2.5 μM concentration. Nevertheless, RWPE-1 cells remained viable even at 20 μM concentration. These results provide evidence that LS10 is an anticancer bacteriocin, which causes apoptotic and necrotic death of cancer cells at lower and higher concentrations, respectively. Taken all results together, the present study signifies that LS10 is an anticancer peptide that could be further developed for therapeutic applications.
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MicroRNA-155 contributes to enhanced resistance to apoptosis in monocytes from patients with rheumatoid arthritis. J Autoimmun 2017; 79:53-62. [PMID: 28118944 PMCID: PMC5397583 DOI: 10.1016/j.jaut.2017.01.002] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 01/12/2017] [Indexed: 02/04/2023]
Abstract
Monocytes and macrophages are key mediators of inflammation in rheumatoid arthritis (RA). Their persistence at the inflammatory site is likely to contribute to immunopathology. We sought to characterise one mechanism by which persistence may be achieved: resistance to apoptosis and the role of mir-155 in this process. CD14+ monocytes from peripheral blood (PBM) and synovial fluid (SFM) of RA patients were found to be resistant to spontaneous apoptosis relative to PBM from healthy control (HC) individuals. RA SFM were also resistant to anti-Fas-mediated apoptosis and displayed a gene expression profile distinct from HC and RA PBM populations. Gene expression profiling analysis revealed that the differentially expressed genes in RA SFM vs. PBM were enriched for apoptosis-related genes and showed increased expression of the mir-155 precursor BIC. Following identification of potential mir-155 target transcripts by bioinformatic methods, we show increased levels of mature mir-155 expression in RA PBM and SFM vs. HC PBM and a corresponding decrease in SFM of two predicted mir-155-target mRNAs, apoptosis mediators CASP10 and APAF1. Using miR mimics, we demonstrate that mir-155 over-expression in healthy CD14+ cells conferred resistance to spontaneous apoptosis, but not Fas-induced death in these cells, and resulted in increased production of cytokines and chemokines. Collectively our data indicate that CD14+ cells from patients with RA show enhanced resistance to apoptosis, and suggest that an increase in mir-155 may partially contribute to this phenotype. CD14+ cells from the inflamed RA joint are strongly resistant to death. Microarrays show differences in apoptosis genes in CD14+ cells from the RA joint. Mir-155 is increased and its targets decreased in RA joint CD14+ cells. Overexpression of mir-155 increases apoptosis resistance of healthy CD14+ cells.
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Guo H, Zheng M, Zhang K, Yang F, Zhang X, Han Q, Chen ZN, Zhu P. Functional defects in CD4 + CD25 high FoxP3 + regulatory cells in ankylosing spondylitis. Sci Rep 2016; 6:37559. [PMID: 27901054 PMCID: PMC5128857 DOI: 10.1038/srep37559] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 11/01/2016] [Indexed: 11/09/2022] Open
Abstract
Forkhead box P3 (FoxP3)-positive regulatory T cells (Tregs) play a pivotal role in the preservation of self-tolerance, and Treg dysfunction has been implicated in many autoimmune diseases. Whether and how Tregs participate in the pathogenesis of ankylosing spondylitis (AS) has not been fully elucidated. Here, we investigated Treg function and found that Tregs in peripheral blood (PB) from patients with active AS had lower FoxP3 mean fluorescence intensity (MFI) than those from healthy controls and could not fully suppress naïve T cell (Tn) proliferation. We also studied the mechanisms underlying PB Treg dysfunction in this context and found that PB Tregs failed to effectively utilize IL-2 and had relatively little STAT5 phosphorylation in active AS. Moreover, PB Tregs from patients with active AS exhibited greater CpG island methylation in the CNS2 region of the FOXP3 gene. Therefore, our findings indicate that functional defects in Tregs are present in AS. Abnormal IL-2 signalling and aberrant CNS2 epigenetic control induced functional defects in PB Tregs and represents a potential new mechanism for AS pathogenesis. These findings may aid the design of new treatment approaches for AS.
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Affiliation(s)
- Huifang Guo
- Department of Clinical Immunology, Xijing Hospital, The Fourth Military Medical University, No. 127 West Changle Road, Xi'an, Shaanxi Province, People's Republic of China.,Department of Cell Biology, Fourth Military Medical University, China.,National Translational Science Center for Molecular Medicine, Xi'an 710032, China
| | - Ming Zheng
- Department of Clinical Immunology, Xijing Hospital, The Fourth Military Medical University, No. 127 West Changle Road, Xi'an, Shaanxi Province, People's Republic of China.,Department of Cell Biology, Fourth Military Medical University, China.,National Translational Science Center for Molecular Medicine, Xi'an 710032, China
| | - Kui Zhang
- Department of Clinical Immunology, Xijing Hospital, The Fourth Military Medical University, No. 127 West Changle Road, Xi'an, Shaanxi Province, People's Republic of China.,National Translational Science Center for Molecular Medicine, Xi'an 710032, China
| | - Fengfan Yang
- Department of Clinical Immunology, Xijing Hospital, The Fourth Military Medical University, No. 127 West Changle Road, Xi'an, Shaanxi Province, People's Republic of China.,National Translational Science Center for Molecular Medicine, Xi'an 710032, China
| | - Xin Zhang
- Department of Clinical Immunology, Xijing Hospital, The Fourth Military Medical University, No. 127 West Changle Road, Xi'an, Shaanxi Province, People's Republic of China.,National Translational Science Center for Molecular Medicine, Xi'an 710032, China
| | - Qing Han
- Department of Clinical Immunology, Xijing Hospital, The Fourth Military Medical University, No. 127 West Changle Road, Xi'an, Shaanxi Province, People's Republic of China.,National Translational Science Center for Molecular Medicine, Xi'an 710032, China
| | - Zhi-Nan Chen
- Department of Cell Biology, Fourth Military Medical University, China.,National Translational Science Center for Molecular Medicine, Xi'an 710032, China
| | - Ping Zhu
- Department of Clinical Immunology, Xijing Hospital, The Fourth Military Medical University, No. 127 West Changle Road, Xi'an, Shaanxi Province, People's Republic of China.,National Translational Science Center for Molecular Medicine, Xi'an 710032, China
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Boros P, Ochando J, Zeher M. Myeloid derived suppressor cells and autoimmunity. Hum Immunol 2016; 77:631-636. [DOI: 10.1016/j.humimm.2016.05.024] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 05/26/2016] [Accepted: 05/26/2016] [Indexed: 12/13/2022]
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Björkander S, Hell L, Johansson MA, Forsberg MM, Lasaviciute G, Roos S, Holmlund U, Sverremark-Ekström E. Staphylococcus aureus-derived factors induce IL-10, IFN-γ and IL-17A-expressing FOXP3+CD161+ T-helper cells in a partly monocyte-dependent manner. Sci Rep 2016; 6:22083. [PMID: 26917055 PMCID: PMC4768154 DOI: 10.1038/srep22083] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 02/05/2016] [Indexed: 11/09/2022] Open
Abstract
Staphylococcus aureus (S. aureus) is a human pathogen as well as a frequent colonizer of skin and mucosa. This bacterium potently activates conventional T-cells through superantigens and it is suggested to induce T-cell cytokine-production as well as to promote a regulatory phenotype in T-cells in order to avoid clearance. This study aimed to investigate how S. aureus impacts the production of regulatory and pro-inflammatory cytokines and the expression of CD161 and HELIOS by peripheral CD4(+)FOXP3(+) T-cells. Stimulation of PBMC with S. aureus 161:2-cell free supernatant (CFS) induced expression of IL-10, IFN-γ and IL-17A in FOXP3(+) cells. Further, CD161 and HELIOS separated the FOXP3(+) cells into four distinct populations regarding cytokine-expression. Monocyte-depletion decreased S. aureus 161:2-induced activation of FOXP3(+) cells while pre-stimulation of purified monocytes with S. aureus 161:2-CFS and subsequent co-culture with autologous monocyte-depleted PBMC was sufficient to mediate activation of FOXP3(+) cells. Together, these data show that S. aureus potently induces FOXP3(+) cells and promotes a diverse phenotype with expression of regulatory and pro-inflammatory cytokines connected to increased CD161-expression. This could indicate potent regulation or a contribution of FOXP3(+) cells to inflammation and repression of immune-suppression upon encounter with S. aureus.
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Affiliation(s)
- Sophia Björkander
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Lena Hell
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Maria A Johansson
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Manuel Mata Forsberg
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Gintare Lasaviciute
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Stefan Roos
- Department of Microbiology, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Ulrika Holmlund
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Eva Sverremark-Ekström
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
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Xu H, Wang CY, Zhang HN, Lv CY, Wang YZ. Astragaloside IV suppresses inflammatory mediator production in synoviocytes and collagen‑induced arthritic rats. Mol Med Rep 2016; 13:3289-96. [PMID: 26936538 DOI: 10.3892/mmr.2016.4923] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 01/14/2016] [Indexed: 11/06/2022] Open
Abstract
The aim of the current study was to investigate the effects of Astragaloside‑IV (AS‑IV) on inflammatory mediators in synoviocytes and collagen‑induced arthritic rats. Synoviocytes were stimulated with lipopolysaccharides (LPS) and Sprague‑Dawley rats were injected with type II collagen. AS‑IV was administered to the LPS‑stimulated synoviocytes and collagen‑induced arthritis (CIA) rats. The inflammation of LPS‑stimulated synoviocytes and CIA rats was assessed using enzyme‑linked immunosorbent assays and western blotting. Using Cell Counting Kit‑8 analysis, it was demonstrated that AS‑IV (5, 20 and 50 mg/ml) inhibited the LPS‑stimulated synoviocytes proliferation in a dose‑dependent manner. AS‑IV significantly inhibited the LPS‑stimulated inflammatory response, as indicated by the expression levels of TNF‑α, IL‑1β, IL‑6 and IL‑8. In addition, treatment with AS‑IV significantly reduced the LPS‑stimulated cyclooxygenase (COX)‑1, COX‑2, high mobility group box 1 protein (HMGB1) and intercellular adhesion molecule 1 overexpression, and intranuclear nuclear factor (NF)‑κBp65 subunit accumulation and activation of c‑Jun N‑terminal kinase (JNK)1/2 and p38. Similar to the protective effects of AS‑IV on LPS‑stimulated synoviocytes, AS‑IV treatment significantly reduced the expression levels of tumor necrosis factor α, interleukin (IL)‑1β, IL‑6 and IL‑8 expression levels, and attenuated intranuclear NF‑κBp65 subunit accumulation and overexpression of COX‑2 and inducible nitric oxide synthase in CIA rats. In conclusion, the results of the present study demonstrated for the first time, to the best of our knowledge, that AS‑IV protects synoviocytes against LPS‑ and collagen‑induced inflammatory responses through inhibition of the HMGB1‑dependent JNK1/2‑ and p38‑activated NF‑κB/COX‑2 pathway.
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Affiliation(s)
- Hao Xu
- Joint Department of Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266100, P.R. China
| | - Chang-Yao Wang
- Joint Department of Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266100, P.R. China
| | - Hai-Ning Zhang
- Joint Department of Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266100, P.R. China
| | - Cheng-Yu Lv
- Joint Department of Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266100, P.R. China
| | - Ying-Zhen Wang
- Joint Department of Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266100, P.R. China
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Yoon BR, Chung YH, Yoo SJ, Kawara K, Kim J, Yoo IS, Park CG, Kang SW, Lee WW. Preferential Induction of the T Cell Auxiliary Signaling Molecule B7-H3 on Synovial Monocytes in Rheumatoid Arthritis. J Biol Chem 2016; 291:4048-57. [PMID: 26702052 PMCID: PMC4759181 DOI: 10.1074/jbc.m115.680298] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 11/24/2015] [Indexed: 12/29/2022] Open
Abstract
B7-H3, a newly identified B7 family member, has functional duality as a co-stimulator and co-inhibitor that fine-tunes T cell-mediated immune responses. Given that B7-H3 expression on human monocytes and dendritic cells is enhanced by inflammatory cytokines, its potential inmmunoregulatory role at sites of inflammation has been suggested. Further, monocytes play crucial roles in the pathophysiology of various inflammatory disorders including autoimmune diseases; however, the immunological role of B7-H3 in rheumatoid arthritis (RA) has not been defined. Thus, we aimed to investigate the possible roles of monocyte B7-H3 in the pathogenesis of RA. Synovial monocytes, but not peripheral monocytes, in RA patients predominantly express surface B7-H3. The 4Ig isoform of B7-H3 is exclusively induced on the cell surface, whereas the 2Ig B7-H3 isoform is constitutively expressed in the intracytoplasmic region of both peripheral and synovial monocytes. B7-H3 knockdown experiments reveal that surface B7-H3 has an inhibitory effect on IFN-γ production in CD4 memory cells. Moreover, surface B7-H3 expression on synovial monocytes inversely correlates with RA clinical parameters. Our findings demonstrate that activation-induced B7-H3 expression on synovial monocytes has the potential to inhibit Th1-mediated immune responses and immunomodulatory roles affecting RA pathogenesis.
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Affiliation(s)
- Bo Ruem Yoon
- From the Departments of Microbiology and Immunology and
| | - Yeon-Ho Chung
- From the Departments of Microbiology and Immunology and the BK21Plus Biomedical Science Project, and the Seoul National University College of Medicine, Seoul 110-799, South Korea
| | - Su-Jin Yoo
- the Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon 301-721, South Korea
| | - Kenji Kawara
- From the Departments of Microbiology and Immunology and the Tokyo Medical and Dental University School of Medicine, Tokyo 113-8510, Japan, and
| | - Jinhyun Kim
- the Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon 301-721, South Korea
| | - In Seol Yoo
- the Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon 301-721, South Korea
| | - Chung-Gyu Park
- From the Departments of Microbiology and Immunology and Biomedical Sciences and
| | - Seong Wook Kang
- the Department of Internal Medicine, Chungnam National University School of Medicine, Daejeon 301-721, South Korea,
| | - Won-Woo Lee
- From the Departments of Microbiology and Immunology and the BK21Plus Biomedical Science Project, and the Seoul National University College of Medicine, Seoul 110-799, South Korea, Biomedical Sciences and the Cancer Research Institute, Ischemic/Hypoxic Disease Institute, and Institute of Infectious Diseases, Seoul National University College of Medicine, Seoul National University Hospital Biomedical Research Institute, Seoul 110-799, South Korea
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Waschbisch A, Schröder S, Schraudner D, Sammet L, Weksler B, Melms A, Pfeifenbring S, Stadelmann C, Schwab S, Linker RA. Pivotal Role for CD16+ Monocytes in Immune Surveillance of the Central Nervous System. THE JOURNAL OF IMMUNOLOGY 2016; 196:1558-67. [PMID: 26746191 DOI: 10.4049/jimmunol.1501960] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 11/29/2015] [Indexed: 01/28/2023]
Abstract
Monocytes represent a heterogeneous population of primary immune effector cells. At least three different subsets can be distinguished based on expression of the low-affinity FcγRIII: CD14(++)CD16 -: classical monocytes, CD14(++)CD16(+) intermediate monocytes, and CD14(+)CD16 ++: non-classical monocytes. Whereas CD16 -: classical monocytes are considered key players in multiple sclerosis (MS), little is known on CD16(+) monocytes and how they contribute to the disease. In this study, we examined the frequency and phenotype of monocyte subpopulations in peripheral blood, cerebrospinal fluid (CSF), and brain biopsy material derived from MS patients and controls. Furthermore, we addressed a possible monocyte dysfunction in MS and analyzed migratory properties of monocyte subsets using human brain microvascular endothelial cells. Our ex vivo studies demonstrated that CD16(+) monocyte subpopulations are functional but numerically reduced in the peripheral blood of MS patients. CD16(+) monocytes with an intermediate-like phenotype were found to be enriched in CSF and dominated the CSF monocyte population under noninflammatory conditions. In contrast, an inversed CD16(+) to CD16 -: CSF monocyte ratio was observed in MS patients with relapsing-remitting disease. Newly infiltrating, hematogenous CD16(+) monocytes were detected in a perivascular location within active MS lesions, and CD16(+) monocytes facilitated CD4(+) T cell trafficking in a blood -: brain barrier model. Our findings support an important role of CD16(+) monocytes in the steady-state immune surveillance of the CNS and suggest that CD16(+) monocytes shift to sites of inflammation and contribute to the breakdown of the blood-brain barrier in CNS autoimmune diseases.
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Affiliation(s)
- Anne Waschbisch
- Department of Neurology, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany;
| | - Sina Schröder
- Department of Neurology, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Dana Schraudner
- Department of Neurology, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Laura Sammet
- Department of Neurology, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Babette Weksler
- Division of Hematology and Medical Oncology, Weill Cornell Medical College, New York, NY 10065; and
| | - Arthur Melms
- Department of Neurology, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Sabine Pfeifenbring
- Department of Neuropathology, University Medical Center, Georg August University Göttingen, 37075 Göttingen, Germany
| | - Christine Stadelmann
- Department of Neuropathology, University Medical Center, Georg August University Göttingen, 37075 Göttingen, Germany
| | - Stefan Schwab
- Department of Neurology, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Ralf A Linker
- Department of Neurology, University Hospital of Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
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Walter GJ, Fleskens V, Frederiksen KS, Rajasekhar M, Menon B, Gerwien JG, Evans HG, Taams LS. Phenotypic, Functional, and Gene Expression Profiling of Peripheral CD45RA+ and CD45RO+ CD4+CD25+CD127(low) Treg Cells in Patients With Chronic Rheumatoid Arthritis. Arthritis Rheumatol 2016; 68:103-16. [PMID: 26314565 PMCID: PMC4832388 DOI: 10.1002/art.39408] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Accepted: 08/25/2015] [Indexed: 11/10/2022]
Abstract
OBJECTIVE Conflicting evidence exists regarding the suppressive capacity of Treg cells in the peripheral blood (PB) of patients with rheumatoid arthritis (RA). The aim of this study was to determine whether Treg cells are intrinsically defective in RA. METHODS Using a range of assays on PB samples from patients with chronic RA and healthy controls, CD3+CD4+CD25+CD127(low) Treg cells from the CD45RO+ or CD45RA+ T cell compartments were analyzed for phenotype, cytokine expression (ex vivo and after in vitro stimulation), suppression of Teff cell proliferation and cytokine production, suppression of monocyte-derived cytokine/chemokine production, and gene expression profiles. RESULTS No differences between RA patients and healthy controls were observed with regard to the frequency of Treg cells, ex vivo phenotype (CD4, CD25, CD127, CD39, or CD161), or proinflammatory cytokine profile (interleukin-17 [IL-17], interferon-γ [IFNγ], or tumor necrosis factor [TNF]). FoxP3 expression was slightly increased in Treg cells from RA patients. The ability of Treg cells to suppress the proliferation of T cells or the production of cytokines (IFNγ or TNF) upon coculture with autologous CD45RO+ Teff cells and monocytes was not significantly different between RA patients and healthy controls. In PB samples from some RA patients, CD45RO+ Treg cells showed an impaired ability to suppress the production of certain cytokines/chemokines (IL-1β, IL-1 receptor antagonist, IL-7, CCL3, or CCL4) by autologous lipopolysaccharide-activated monocytes. However, this was not observed in all patients, and other cytokines/chemokines (TNF, IL-6, IL-8, IL-12, IL-15, or CCL5) were generally suppressed. Finally, gene expression profiling of CD45RA+ or CD45RO+ Treg cells from the PB revealed no statistically significant differences between RA patients and healthy controls. CONCLUSION Our findings indicate that there is no global defect in either CD45RO+ or CD45RA+ Treg cells in the PB of patients with chronic RA.
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Affiliation(s)
| | | | | | | | - Bina Menon
- Guy's and St. Thomas’ NHS Foundation TrustLondonUK
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Roberts CA, Dickinson AK, Taams LS. The Interplay Between Monocytes/Macrophages and CD4(+) T Cell Subsets in Rheumatoid Arthritis. Front Immunol 2015; 6:571. [PMID: 26635790 PMCID: PMC4652039 DOI: 10.3389/fimmu.2015.00571] [Citation(s) in RCA: 150] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 10/26/2015] [Indexed: 12/24/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by inflammation of the synovial lining (synovitis). The inflammation in the RA joint is associated with and driven by immune cell infiltration, synovial hyperproliferation, and excessive production of proinflammatory mediators, such as tumor necrosis factor α (TNFα), interferon γ (IFNγ), interleukin (IL)-1β, IL-6, and IL-17, eventually resulting in damage to the cartilage and underlying bone. The RA joint harbors a wide range of immune cell types, including monocytes, macrophages, and CD4(+) T cells (both proinflammatory and regulatory). The interplay between CD14(+) myeloid cells and CD4(+) T cells can significantly influence CD4(+) T cell function, and conversely, effector vs. regulatory CD4(+) T cell subsets can exert profound effects on monocyte/macrophage function. In this review, we will discuss how the interplay between CD4(+) T cells and monocytes/macrophages may contribute to the immunopathology of RA.
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Affiliation(s)
- Ceri A Roberts
- Centre for Molecular and Cellular Biology of Inflammation (CMCBI), Division of Immunology, Infection and Inflammatory Disease, King's College London , London , UK
| | - Abigail K Dickinson
- Centre for Molecular and Cellular Biology of Inflammation (CMCBI), Division of Immunology, Infection and Inflammatory Disease, King's College London , London , UK
| | - Leonie S Taams
- Centre for Molecular and Cellular Biology of Inflammation (CMCBI), Division of Immunology, Infection and Inflammatory Disease, King's College London , London , UK
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Cribbs AP, Kennedy A, Penn H, Amjadi P, Green P, Read JE, Brennan F, Gregory B, Williams RO. Methotrexate Restores Regulatory T Cell Function Through Demethylation of the FoxP3 Upstream Enhancer in Patients With Rheumatoid Arthritis. Arthritis Rheumatol 2015; 67:1182-92. [PMID: 25604080 DOI: 10.1002/art.39031] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 01/08/2015] [Indexed: 12/18/2022]
Abstract
OBJECTIVE We have previously shown, in a cohort of untreated rheumatoid arthritis (RA) patients, that the suppressive function of Treg cells is defective. However, other studies in cohorts of patients with established RA have shown that Treg cell function is normal. We hypothesized that treatment may restore Treg cell function and lead to reduced disease activity. The aim of this study was to investigate whether treatment with methotrexate (MTX) can result in epigenetic changes that lead to restoration of the Treg cell suppressive function in RA. METHODS Peripheral blood samples from RA patients were assessed using (3) H-thymidine incorporation to measure Treg cell suppression of T cell proliferation, and by enzyme-linked immunosorbent assay to determine Treg cell suppression of interferon-γ production. CTLA-4 and FoxP3 expression was measured by flow cytometry and quantitative polymerase chain reaction (qPCR) in Treg cells from healthy individuals and RA patients. CD4+ T cells isolated from healthy individuals were cultured with interleukin-2 (IL-2), IL-6, and tumor necrosis factor α in the presence or absence of MTX, and FoxP3 expression was determined using qPCR and flow cytometry. Methylation of the FOXP3 upstream enhancer was analyzed by bisulfite sequencing PCR. RESULTS Defective Treg cell function was observed only in RA patients who had not been treated with MTX, whereas Treg cells from MTX-exposed RA patients had restored suppressive function. This restored suppression was associated with increased expression of FoxP3 and CTLA-4 in Treg cells. Bisulfite sequencing PCR of Treg cells cultured in MTX revealed a significant reduction in methylation of the FOXP3 upstream enhancer. CONCLUSION This study identifies a novel mechanism of action of MTX, in which treatment of RA patients with MTX restores defective Treg cell function through demethylation of the FOXP3 locus, leading to a subsequent increase in FoxP3 and CTLA-4 expression.
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Affiliation(s)
- Adam P Cribbs
- Kennedy Institute of Rheumatology and University of Oxford, Oxford, UK
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Wang T, Sun X, Zhao J, Zhang J, Zhu H, Li C, Gao N, Jia Y, Xu D, Huang FP, Li N, Lu L, Li ZG. Regulatory T cells in rheumatoid arthritis showed increased plasticity toward Th17 but retained suppressive function in peripheral blood. Ann Rheum Dis 2015; 74:1293-301. [PMID: 24521740 DOI: 10.1136/annrheumdis-2013-204228] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Accepted: 01/24/2014] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Regulatory T cells (Tregs) with the plasticity of producing proinflammatory cytokine IL-17 have been demonstrated under normal and pathogenic conditions. However, it remains unclear whether IL-17-producing Tregs lose their suppressive functions because of their plasticity toward Th17 in autoimmunity. The aim of this study was to investigate IL-17-producing Tregs from patients with rheumatoid arthritis (RA), and characterise their regulatory capacity and clinical significance. METHODS Foxp3 and IL-17 coexpression were evaluated in CD4 T lymphocytes from RA patients. An in vitro T cell polarisation assay was performed to investigate the role of proinflammatory cytokines in IL-17-producing Treg polarisation. The suppressive function of IL-17-producing Tregs in RA was assessed by an in vitro suppression assay. The relationship between this Treg subset and clinical features in RA patients was analysed using Spearman's rank correlation test. RESULTS A higher frequency of IL-17-producing Tregs was present in the peripheral blood of RA patients compared with healthy subjects. These cells from peripheral blood showed phenotypic characteristics of Th17 and Treg cells, and suppressed T cell proliferation in vitro. Tregs in RA synovial fluid lost suppressive function. The Th17 plasticity of Tregs could be induced by IL-6 and IL-23. An increased ratio of this Treg subset was associated with decreased levels of inflammatory markers, including the erythrocyte sedimentation rate and C-reactive protein level, in patients with RA. CONCLUSIONS Increased levels of IL-17-producing Tregs were identified in RA patients. This Treg subset with Th17 plasticity in peripheral blood retained suppressive functions and was associated with milder inflammatory conditions, suggesting that this Treg population works as a negative regulator in RA, but in RA synovial site it may be pathogenic.
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Affiliation(s)
- Tian Wang
- Department of Rheumatology & Immunology, Clinical Immunology Center, Peking University People's Hospital, Beijing, China Department of Rheumatology & Immunology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Xiaolin Sun
- Department of Rheumatology & Immunology, Clinical Immunology Center, Peking University People's Hospital, Beijing, China
| | - Jing Zhao
- Department of Rheumatology & Immunology, Clinical Immunology Center, Peking University People's Hospital, Beijing, China
| | - Jing Zhang
- Department of Rheumatology & Immunology, Clinical Immunology Center, Peking University People's Hospital, Beijing, China
| | - Huaqun Zhu
- Department of Rheumatology & Immunology, Clinical Immunology Center, Peking University People's Hospital, Beijing, China
| | - Chun Li
- Department of Rheumatology & Immunology, Clinical Immunology Center, Peking University People's Hospital, Beijing, China
| | - Na Gao
- Department of Rheumatology & Immunology, Beijing An Zhen Hospital, Capital Medical University, Beijing, China
| | - Yuan Jia
- Department of Rheumatology & Immunology, Clinical Immunology Center, Peking University People's Hospital, Beijing, China
| | - Dakang Xu
- MIMR-PHI Institute of Medical Research, Monash University, Clayton, Victoria, Australia and Institute of Ageing Research, Hangzhou Normal University School of Medicine, Hangzhou, China
| | - Fang-Ping Huang
- Division of Immunology & Inflammation (Rheumatology Section), Department of Medicine, Imperial College Faculty of Medicine, Hammersmith Hospital, London, UK
| | - Ningli Li
- Shanghai Institute of Immunology, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liwei Lu
- Department of Pathology and Center of Infection and Immunology, The University of Hong Kong, Hong Kong, China
| | - Zhan-Guo Li
- Department of Rheumatology & Immunology, Clinical Immunology Center, Peking University People's Hospital, Beijing, China
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Bulatović Ćalasan M, Vastert SJ, Scholman RC, Verweij F, Klein M, Wulffraat NM, Prakken BJ, van Wijk F. Methotrexate treatment affects effector but not regulatory T cells in juvenile idiopathic arthritis. Rheumatology (Oxford) 2015; 54:1724-34. [PMID: 25877908 DOI: 10.1093/rheumatology/kev101] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE The balance between Treg and effector T cells (Teff) is crucial for immune regulation in JIA. How MTX, the cornerstone treatment in JIA, influences this balance in vivo is poorly elucidated. The aim of this study was to investigate quantitative and qualitative effects of MTX on Treg and Teff in JIA patients during MTX treatment. METHODS Peripheral blood samples were obtained from JIA patients at the start of MTX and 3 and 6 months thereafter. Treg numbers and phenotypes were determined by flow cytometry and suppressive function in allogeneic suppression assays. Teff proliferation upon stimulation with anti-CD3, activation status and intracellular cytokine production were determined by flow cytometry. Effector cell responsiveness to suppression was investigated in autologous suppression assays. Effector cell cytokines in supernatants of proliferation and suppression assays and in plasma were measured by cytokine multiplex assay. RESULTS MTX treatment in JIA did not affect Treg phenotype and function. Instead, MTX treatment enhanced, rather than diminished, CD4(+) and CD8(+) T cell proliferation of JIA patients after 6 months of therapy, independent of clinical response. Effector cells during MTX treatment were equally responsive to Treg-mediated suppression. MTX treatment did not attenuate Teff activation status and their capacity to produce IL-13, IL-17, TNF-α and IFN-γ. Similarly to Teff proliferation, plasma IFN-γ concentrations after 6 months were increased. CONCLUSION This study provides the novel insight that MTX treatment in JIA does not attenuate Teff function but, conversely, enhances T cell proliferation and IFN-γ plasma concentrations in JIA patients.
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Affiliation(s)
- Maja Bulatović Ćalasan
- Center for Molecular and Cellular Intervention, Department of Pediatric Immunology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Sebastiaan J Vastert
- Center for Molecular and Cellular Intervention, Department of Pediatric Immunology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Rianne C Scholman
- Center for Molecular and Cellular Intervention, Department of Pediatric Immunology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Frederik Verweij
- Center for Molecular and Cellular Intervention, Department of Pediatric Immunology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Mark Klein
- Center for Molecular and Cellular Intervention, Department of Pediatric Immunology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Nico M Wulffraat
- Center for Molecular and Cellular Intervention, Department of Pediatric Immunology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Berent J Prakken
- Center for Molecular and Cellular Intervention, Department of Pediatric Immunology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Femke van Wijk
- Center for Molecular and Cellular Intervention, Department of Pediatric Immunology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, The Netherlands
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Mulcahy EM, Hudson JB, Beggs SA, Reid DW, Roddam LF, Cooley MA. High peripheral blood th17 percent associated with poor lung function in cystic fibrosis. PLoS One 2015; 10:e0120912. [PMID: 25803862 PMCID: PMC4372584 DOI: 10.1371/journal.pone.0120912] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 01/28/2015] [Indexed: 12/23/2022] Open
Abstract
People with cystic fibrosis (CF) have been reported to make lung T cell responses that are biased towards T helper (Th) 2 or Th17. We hypothesized that CF-related T cell regulatory defects could be detected by analyzing CD4+ lymphocyte subsets in peripheral blood. Peripheral blood mononuclear cells from 42 CF patients (6 months–53 years old) and 78 healthy controls (2–61 years old) were analyzed for Th1 (IFN-γ+), Th2 (IL-4+), Th17 (IL-17+), Treg (FOXP3+), IL-10+ and TGF-β+ CD4+ cells. We observed higher proportions of Treg, IL-10+ and TGF-β+ CD4+ cells in CF adults (≥ 18 years old), but not children/adolescents, compared with controls. Within the CF group, high TGF-β+% was associated with chronic Pseudomonas aeruginosa lung infection (p < 0.006). We observed no significant differences between control and CF groups in the proportions of Th1, Th2 or Th17 cells, and no association within the CF group of any subset with sex, CFTR genotype, or clinical exacerbation. However, high Th17% was strongly associated with poor lung function (FEV1 % predicted) (p = 0.0008), and this association was strongest when both lung function testing and blood sampling were performed within one week. Our results are consistent with reports of CF as a Th17 disease and suggest that peripheral blood Th17 levels may be a surrogate marker of lung function in CF.
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Affiliation(s)
- Emily M. Mulcahy
- School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Jo B. Hudson
- School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Sean A. Beggs
- School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
- Royal Hobart Hospital, Hobart, Tasmania, Australia
| | - David W. Reid
- School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
- Royal Hobart Hospital, Hobart, Tasmania, Australia
| | - Louise F. Roddam
- School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Margaret A. Cooley
- School of Medicine, University of Tasmania, Hobart, Tasmania, Australia
- * E-mail:
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Monocyte:T-cell interaction regulates human T-cell activation through a CD28/CD46 crosstalk. Immunol Cell Biol 2015; 93:796-803. [PMID: 25787182 PMCID: PMC4519525 DOI: 10.1038/icb.2015.42] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 02/20/2015] [Accepted: 03/15/2015] [Indexed: 01/20/2023]
Abstract
T cell activation requires engagement of the T cell receptor and of at least one costimulatory molecule. The key role of CD28 in inducing T cell activation has been reported several decades ago and the molecular mechanisms involved well described. The complement regulator CD46 also acts as a costimulatory molecule for T cells but, in contrast to CD28, has the ability to drive T cell differentiation from producing some IFNγ to secreting some potent anti-inflammatory IL-10, acquiring a so-called Type I regulatory phenotype (Tr1). Proteolytic cleavage of CD46 occurs upon costimulation and is important for T cell activation and IL-10 production. The observation that CD46 cleavage was reduced when PBMC were costimulated compared to purified naive T cells led us to hypothesize that interactions between different cell types within the PBMC were able to modulate the CD46 pathway. We show that CD46 downregulation is also reduced when CD4+ T cells are co-cultured with autologous monocytes. Indeed, monocyte:T cell co-cultures impaired CD46–mediated T cell differentiation and coactivation, by reducing downregulation of surface CD46, lowering induction of the early activation marker CD69, as well as reducing the levels of IL-10 secretion. Blocking of CD86 could partly restore CD69 expression and cytokine secretion, demonstrating that the CD28-CD86 pathway regulates CD46 activation. Direct concomitant ligation of CD28 and CD46 on CD4+ T cells also modulated CD46 expression and regulated cytokine production. These data identify a crosstalk between two main costimulatory pathways and provide novel insights into the regulation of human T cell activation.
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Huang H, Xu R, Lin F, Bao C, Wang S, Ji C, Li K, Jin L, Mu J, Wang Y, Li L, Sun L, Xu B, Zhang Z, Wang FS. High circulating CD39+ regulatory T cells predict poor survival for sepsis patients. Int J Infect Dis 2015; 30:57-63. [DOI: 10.1016/j.ijid.2014.11.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 11/04/2014] [Accepted: 11/05/2014] [Indexed: 12/11/2022] Open
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