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Tan KBC, Alexander HD, Linden J, Murray EK, Gibson DS. Anti-inflammatory effects of phytocannabinoids and terpenes on inflamed Tregs and Th17 cells in vitro. Exp Mol Pathol 2024; 139:104924. [PMID: 39208564 DOI: 10.1016/j.yexmp.2024.104924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 08/13/2024] [Accepted: 08/21/2024] [Indexed: 09/04/2024]
Abstract
AIMS Phytocannabinoids and terpenes from Cannabis sativa have demonstrated limited anti-inflammatory and analgesic effects in several inflammatory conditions. In the current study, we test the hypothesis that phytocannabinoids exert immunomodulatory effects in vitro by decreasing inflammatory cytokine expression and activation. KEY METHODS CD3/CD28 and lipopolysaccharide activated peripheral blood mononuclear cells (PBMCs) from healthy donors (n = 6) were treated with phytocannabinoid compounds and terpenes in vitro. Flow cytometry was used to determine regulatory T cell (Treg) and T helper 17 (Th17) cell responses to treatments. Cell pellets were harvested for qRT-PCR gene expression analysis of cytokines, cell activation markers, and inflammation-related receptors. Cell culture supernatants were analysed by ELISA to quantify IL-6, TNF-α and IL-10 secretion. MAIN FINDINGS In an initial screen of 20 μM cannabinoids and terpenes which were coded to blind investigators, cannabigerol (GL4a), caryophyllene oxide (GL5a) and gamma-terpinene (GL6a) significantly reduced cytotoxicity and gene expression levels of IL6, IL10, TNF, TRPV1, CNR1, HTR1A, FOXP3, RORC and NFKΒ1. Tetrahydrocannabinol (GL7a) suppression of T cell activation was associated with downregulation of RORC and NFKΒ1 gene expression and reduced IL-6 (p < 0.0001) and IL10 (p < 0.01) secretion. Cannabidiol (GL1b) significantly suppressed activation of Tregs (p < 0.05) and Th17 cells (p < 0.05) in a follow-on in vitro dose-response study. IL-6 (p < 0.01) and IL-10 (p < 0.01) secretion was significantly reduced with 50 μM cannabidiol. SIGNIFICANCE The study provides the first evidence that cannabidiol and tetrahydrocannabinol suppress extracellular expression of both anti- and pro-inflammatory cytokines in an in vitro PBMC model of inflammation.
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Affiliation(s)
- Kyle B C Tan
- Personalised Medicine Centre, School of Medicine, Ulster University, C-TRIC Building, Londonderry BT47 6SB, United Kingdom
| | - H Denis Alexander
- Personalised Medicine Centre, School of Medicine, Ulster University, C-TRIC Building, Londonderry BT47 6SB, United Kingdom
| | - James Linden
- GreenLight Pharmaceuticals Ltd, Unit 2, Block E, Nutgrove Office Park, Dublin 14, Ireland
| | - Elaine K Murray
- Personalised Medicine Centre, School of Medicine, Ulster University, C-TRIC Building, Londonderry BT47 6SB, United Kingdom
| | - David S Gibson
- Personalised Medicine Centre, School of Medicine, Ulster University, C-TRIC Building, Londonderry BT47 6SB, United Kingdom.
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Puuvuori E, Shen Y, Hulsart-Billström G, Mitran B, Zhang B, Cheung P, Wegrzyniak O, Ingvast S, Persson J, Ståhl S, Korsgren O, Löfblom J, Wermeling F, Eriksson O. Noninvasive PET Detection of CD69-Positive Immune Cells Before Signs of Clinical Disease in Inflammatory Arthritis. J Nucl Med 2024; 65:294-299. [PMID: 38050119 DOI: 10.2967/jnumed.123.266336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/10/2023] [Indexed: 12/06/2023] Open
Abstract
Rheumatoid arthritis (RA) is the most common inflammatory joint disease, and early diagnosis is key for effective disease management. CD69 is one of the earliest cell surface markers seen at the surface of activated immune cells, and CD69 is upregulated in synovial tissue in patients with active RA. In this study, we evaluated the performance of a CD69-targeting PET agent, [68Ga]Ga-DOTA-ZCAM241, for early disease detection in a model of inflammatory arthritis. Methods: A model of inflammatory arthritis was induced by transferring splenocytes from KRN T-cell receptor transgenic B6 mice into T-cell-deficient I-Ag7 major histocompatibility complex class II-expressing recipient mice. The mice were examined longitudinally by [68Ga]Ga-DOTA-ZCAM241 PET/CT before and 3, 7, and 12 d after induction of arthritis. Disease progression was monitored by clinical parameters, including measuring body weight and scoring the swelling of the paws. The uptake of [68Ga]Ga-DOTA-ZCAM241 in the paws was analyzed and expressed as SUVmean Tissue biopsy samples were analyzed for CD69 expression by flow cytometry or immunostaining for a histologic correlate. A second group of mice was examined by a nonbinding, size-matched Affibody molecule as the control. Results: Clinical symptoms appeared 5-7 d after induction of arthritis. The uptake of [68Ga]Ga-DOTA-ZCAM241 in the joints was negligible at baseline but increased gradually after disease induction. An elevated PET signal was found on day 3, before the appearance of clinical symptoms. The uptake of [68Ga]Ga-DOTA-ZCAM241 correlated with the clinical score and disease severity. The presence of CD69-positive cells in the joints and lymph nodes was confirmed by flow cytometry and immunostaining. The uptake of the nonbinding tracer that was the negative control also increased gradually with disease progression, although to a lesser extent than with [68Ga]Ga-DOTA-ZCAM241 Conclusion: The uptake of [68Ga]Ga-DOTA-ZCAM241 in the inflamed joints preceded the clinical symptoms in the KRN T-cell transfer model of inflammatory arthritis, in accordance with immunostaining for CD69. [68Ga]Ga-DOTA-ZCAM241 is thus a promising PET imaging marker of activated immune cells in tissue during RA onset.
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Affiliation(s)
- Emmi Puuvuori
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Yunbing Shen
- Center for Molecular Medicine, Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Gry Hulsart-Billström
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Bogdan Mitran
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
- Antaros Medical AB, Mölndal, Sweden
| | - Bo Zhang
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Pierre Cheung
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Olivia Wegrzyniak
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Sofie Ingvast
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden; and
| | - Jonas Persson
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
- Department of Protein Science, Division of Protein Engineering, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Stefan Ståhl
- Department of Protein Science, Division of Protein Engineering, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Olle Korsgren
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden; and
| | - John Löfblom
- Department of Protein Science, Division of Protein Engineering, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Fredrik Wermeling
- Center for Molecular Medicine, Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden;
| | - Olof Eriksson
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden;
- Antaros Medical AB, Mölndal, Sweden
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3
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Martínez-Banaclocha H, García-Palenciano C, Martínez-Alarcón L, Amores-Iniesta J, Martín-Sánchez F, Ercole GA, González-Lisorge A, Fernández-Pacheco J, Martínez-Gil P, Padilla-Rodríguez J, Baroja-Mazo A, Pelegrín P, Martínez-García JJ. Purinergic P2X7 receptor expression increases in leukocytes from intra-abdominal septic patients. Front Immunol 2023; 14:1297249. [PMID: 38094297 PMCID: PMC10716420 DOI: 10.3389/fimmu.2023.1297249] [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: 09/19/2023] [Accepted: 11/15/2023] [Indexed: 12/18/2023] Open
Abstract
Inflammation is a tightly coordinated response of the host immune system to bacterial and viral infections, triggered by the production of inflammatory cytokines. Sepsis is defined as a systemic inflammatory response followed by immunosuppression of the host and organ dysfunction. This imbalance of the immune response increases the risk of mortality of patients with sepsis, making it a major problem for critical care units worldwide. The P2X7 receptor plays a crucial role in activating the immune system by inducing the activation of peripheral blood mononuclear cells. In this study, we analyzed a cohort of abdominal origin septic patients and found that the expression of the P2X7 receptor in the plasma membrane is elevated in the different subsets of lymphocytes. We observed a direct relationship between the percentage of P2X7-expressing lymphocytes and the early inflammatory response in sepsis. Additionally, in patients whose lymphocytes presented a higher percentage of P2X7 surface expression, the total lymphocytes populations proportionally decreased. Furthermore, we found a correlation between elevated soluble P2X7 receptors in plasma and inflammasome-dependent cytokine IL-18. In summary, our work demonstrates that P2X7 expression is highly induced in lymphocytes during sepsis, and this correlates with IL-18, along with other inflammatory mediators such as IL-6, IL-8, and procalcitonin.
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Affiliation(s)
- Helios Martínez-Banaclocha
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
| | - Carlos García-Palenciano
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
- Unidad de Reanimación, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Laura Martínez-Alarcón
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
| | - Joaquín Amores-Iniesta
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
| | - Fátima Martín-Sánchez
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
| | - Giovanni A. Ercole
- Unidad de Reanimación, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Ada González-Lisorge
- Unidad de Reanimación, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - José Fernández-Pacheco
- Unidad de Reanimación, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Piedad Martínez-Gil
- Unidad de Reanimación, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | | | - Alberto Baroja-Mazo
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
| | - Pablo Pelegrín
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - Juan José Martínez-García
- Biomedical Research Institute of Murcia (IMIB), University Clinical Hospital Virgen Arrixaca, Murcia, Spain
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain
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Fiorillo A, Gallego JJ, Casanova-Ferrer F, Giménez-Garzó C, Urios A, Ballester MP, Durbán L, Rios MP, Megías J, San Miguel T, Kosenko E, Escudero-García D, Benlloch S, Felipo V, Montoliu C. Mild Cognitive Impairment Is Associated with Enhanced Activation of Th17 Lymphocytes in Non-Alcoholic Fatty Liver Disease. Int J Mol Sci 2023; 24:10407. [PMID: 37373554 DOI: 10.3390/ijms241210407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/16/2023] [Accepted: 06/18/2023] [Indexed: 06/29/2023] Open
Abstract
Patients with nonalcoholic fatty liver disease (NAFLD) may show mild cognitive impairment (MCI). The mechanisms involved remain unclear. The plasma concentrations of several cytokines and chemokines were measured in 71 NAFLD patients (20 with and 51 without MCI) and 61 controls. Characterization and activation of leukocyte populations and CD4+ sub-populations were carried out and analyzed by flow cytometry. We analyzed the cytokines released from CD4+ cell cultures and the mRNA expression of transcription factors and receptors in peripheral blood mononuclear cells. The appearance of MCI in NAFLD patients was associated with increased activation of CD4+ T lymphocytes, mainly of the Th17 subtype, increased plasma levels of pro-inflammatory and anti-inflammatory cytokines such as IL-17A, IL-23, IL-21, IL-22, IL-6, INF-γ, and IL-13, and higher expression of the CCR2 receptor. Constitutive expression of IL-17 was found in cultures of CD4+ cells from MCI patients, reflecting Th17 activation. High IL-13 plasma levels were predictive of MCI and could reflect a compensatory anti-inflammatory response to the increased expression of pro-inflammatory cytokines. This study identified some specific alterations of the immune system associated with the appearance of neurological alterations in MCI patients with NAFLD that could be the basis to improve and restore cognitive functions and quality of life in these patients.
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Affiliation(s)
- Alessandra Fiorillo
- Fundación de Investigación Hospital Clínico Universitario de Valencia-INCLIVA, 46010 Valencia, Spain
| | - Juan-José Gallego
- Fundación de Investigación Hospital Clínico Universitario de Valencia-INCLIVA, 46010 Valencia, Spain
| | - Franc Casanova-Ferrer
- Fundación de Investigación Hospital Clínico Universitario de Valencia-INCLIVA, 46010 Valencia, Spain
| | - Carla Giménez-Garzó
- Laboratory of Neurobiology, Centro Investigación Príncipe Felipe, 46012 Valencia, Spain
| | - Amparo Urios
- Fundación de Investigación Hospital Clínico Universitario de Valencia-INCLIVA, 46010 Valencia, Spain
| | - Maria-Pilar Ballester
- Servicio de Medicina Digestiva, Hospital Clínico Universitario de Valencia, 46010 Valencia, Spain
| | - Lucia Durbán
- Servicio de Medicina Digestiva, Hospital Arnau de Vilanova, 46015 Valencia, Spain
| | - Maria-Pilar Rios
- Servicio de Medicina Digestiva, Hospital Arnau de Vilanova, 46015 Valencia, Spain
| | - Javier Megías
- Departamento de Patología, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain
| | - Teresa San Miguel
- Departamento de Patología, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain
| | - Elena Kosenko
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences, 142290 Pushchino, Russia
| | - Desamparados Escudero-García
- Servicio de Medicina Digestiva, Hospital Clínico Universitario de Valencia, 46010 Valencia, Spain
- Departamento de Medicina, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain
| | - Salvador Benlloch
- Servicio de Medicina Digestiva, Hospital Arnau de Vilanova, 46015 Valencia, Spain
- CIBERehd, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Vicente Felipo
- Laboratory of Neurobiology, Centro Investigación Príncipe Felipe, 46012 Valencia, Spain
| | - Carmina Montoliu
- Fundación de Investigación Hospital Clínico Universitario de Valencia-INCLIVA, 46010 Valencia, Spain
- Departamento de Patología, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain
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Yamada H. The Search for the Pathogenic T Cells in the Joint of Rheumatoid Arthritis: Which T-Cell Subset Drives Autoimmune Inflammation? Int J Mol Sci 2023; 24:ijms24086930. [PMID: 37108093 PMCID: PMC10138952 DOI: 10.3390/ijms24086930] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disorder affecting systemic synovial tissues, leading to the destruction of multiple joints. Its etiology is still unknown, but T-cell-mediated autoimmunity has been thought to play critical roles, which is supported by experimental as well as clinical observations. Therefore, efforts have been made to elucidate the functions and antigen specificity of pathogenic autoreactive T cells, which could be a therapeutic target for disease treatment. Historically, T-helper (Th)1 and Th17 cells are hypothesized to be pathogenic T cells in RA joints; however, lines of evidence do not fully support this hypothesis, showing polyfunctionality of the T cells. Recent progress in single-cell analysis technology has led to the discovery of a novel helper T-cell subset, peripheral helper T cells, and attracted attention to the previously unappreciated T-cell subsets, such as cytotoxic CD4 and CD8 T cells, in RA joints. It also enables a comprehensive view of T-cell clonality and function. Furthermore, the antigen specificity of the expanded T-cell clones can be determined. Despite such progress, which T-cell subset drives inflammation is yet known.
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Affiliation(s)
- Hisakata Yamada
- Department of Clinical Immunology, Faculty of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Yu L, Zhou B, Zhu Y, Li L, Zhong Y, Zhu L, Wang H, Chen H, Xu J, Guo T, Feng L, Wang X, Cai Z, Wang J, Jin H. HSF1 promotes CD69 + Treg differentiation to inhibit colitis progression. Theranostics 2023; 13:1892-1905. [PMID: 37064870 PMCID: PMC10091886 DOI: 10.7150/thno.78078] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 02/22/2023] [Indexed: 04/18/2023] Open
Abstract
Regulatory T cells (Tregs) are critical for generating and maintaining peripheral tolerance. Treg-based immunotherapy is valuable for the clinical management of diseases resulting from dysregulation of immune tolerance. However, the lack of potency is a potential limitation of Treg therapy. In addition, CD69 positive-Treg (CD69+ Treg) represent a newly identified subset of Tregs with potent immune suppressive capability. Methods: Foxp3 YFP-Cre CD69 fl/fl and CD4 Cre CD69 fl/fl mice were generated to determine the relevance of CD69 to Treg. Chromatin Immunoprecipitation Assay (ChIP) and luciferase Assay were performed to detect the regulation of CD69 transcription by heat shock transcription factor 1(HSF1). Gene expression was measured by western blotting and qRT-PCR. The differentiation of naive T cells to CD69+Foxp3+ iTregs was determined by flow cytometry. The immunosuppressive ability of Tregs was analyzed by ELISA and flow cytometry. Colon inflammation in mice was reflected by changes in body weight and colon length, the disease activity index (DAI), and H&E staining of colon tissues. Results: Induced Tregs (iTregs) from CD4 Cre CD69 fl/fl mice failed to alleviate colitis. The transcription factor HSF1 interacted with the promoter of the CD69 gene to prompt its transcription during Treg differentiation. Genetic and chemical inhibition of HSF1 impaired CD69+ Treg differentiation and promoted the pathogenesis of colitis in mice. In contrast, HSF1 protein stabilized by inhibiting its proteasomal degradation promoted CD69+ Treg differentiation and alleviated colitis in mice. Moreover, adoptive transfer of iTregs with HSF1 stabilization by proteasome inhibitor (PSI) dramatically prevented the development of colitis in mice and was accompanied by decreased production of pro-inflammatory cytokines and reduced accumulation of pro-inflammatory lymphocytes in colitis tissue, whereas Tregs induced in the absence of PSI were less stable and ineffective in suppressing colitis. Conclusions: HSF1 promotes CD69+ Tregs differentiation by activating the CD69 transcription, which is critical for the immunosuppressive function of Tregs. Stabilization of HSF1 by PSIs results in the efficient generation of Tregs with high potency to treat colitis and probably other autoimmune diseases involving Tregs deficiency.
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Affiliation(s)
- Lei Yu
- Laboratory of Cancer Biology, Key Lab of Biotherapy in Zhejiang Province, Cancer Center of Zhejiang University, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Bingluo Zhou
- Laboratory of Cancer Biology, Key Lab of Biotherapy in Zhejiang Province, Cancer Center of Zhejiang University, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yiran Zhu
- Laboratory of Cancer Biology, Key Lab of Biotherapy in Zhejiang Province, Cancer Center of Zhejiang University, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- Department of Medical Oncology, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Ling Li
- Laboratory of Cancer Biology, Key Lab of Biotherapy in Zhejiang Province, Cancer Center of Zhejiang University, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yiming Zhong
- Department of Medical Oncology, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Liyuan Zhu
- Laboratory of Cancer Biology, Key Lab of Biotherapy in Zhejiang Province, Cancer Center of Zhejiang University, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hanying Wang
- Department of Medical Oncology, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hui Chen
- Department of Pathology, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jinye Xu
- Laboratory of Cancer Biology, Key Lab of Biotherapy in Zhejiang Province, Cancer Center of Zhejiang University, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Tianxin Guo
- Department of respiratory medicine, The First People's Hospital of Xiaoshan District, Xiaoshan First Affiliated Hospital of Wenzhou Medical University, Hangzhou, 311200, Zhejiang, China
| | - Lifeng Feng
- Laboratory of Cancer Biology, Key Lab of Biotherapy in Zhejiang Province, Cancer Center of Zhejiang University, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xian Wang
- Department of Medical Oncology, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Zhijian Cai
- Institute of Immunology, and Department of Orthopedics of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- ✉ Corresponding authors: Prof. Dr. Hongchuan Jin, . Prof. Dr. Zhijian Cai, . Prof. Dr. Jianli Wang,
| | - Jianli Wang
- Institute of Immunology, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Institute of Hematology, Zhejiang University & Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
- ✉ Corresponding authors: Prof. Dr. Hongchuan Jin, . Prof. Dr. Zhijian Cai, . Prof. Dr. Jianli Wang,
| | - Hongchuan Jin
- Laboratory of Cancer Biology, Key Lab of Biotherapy in Zhejiang Province, Cancer Center of Zhejiang University, Sir Run Run Shaw hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
- ✉ Corresponding authors: Prof. Dr. Hongchuan Jin, . Prof. Dr. Zhijian Cai, . Prof. Dr. Jianli Wang,
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Wienke J, Veldkamp SR, Struijf EM, Yousef Yengej FA, van der Wal MM, van Royen-Kerkhof A, van Wijk F. T cell interaction with activated endothelial cells primes for tissue-residency. Front Immunol 2022; 13:827786. [PMID: 36172363 PMCID: PMC9510578 DOI: 10.3389/fimmu.2022.827786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
Tissue-resident memory T cells (TRM) are suspected drivers of chronic inflammation, but their induction remains unclear. Since endothelial cells (EC) are obligate interaction partners for T cells trafficking into inflamed tissues, they may play a role in TRM development. Here, we used an in vitro co-culture system of human cytokine-activated EC and FACS-sorted T cells to study the effect of EC on T(RM) cell differentiation. T cell phenotypes were assessed by flow cytometry, including proliferation measured by CellTrace Violet dilution assay. Soluble mediators were analyzed by multiplex immunoassay. Co-culture of T cells with cytokine-activated, but not resting EC induced CD69 expression without activation (CD25, Ki67) or proliferation. The dynamic of CD69 expression induced by EC was distinct from that induced by TCR triggering, with rapid induction and stable expression over 7 days. CD69 induction by activated EC was higher in memory than naive T cells, and most pronounced in CD8+ effector memory T cells. Early CD69 induction was mostly mediated by IL-15, whereas later effects were also mediated by interactions with ICAM-1 and/or VCAM-1. CD69+ T cells displayed a phenotype associated with tissue-residency, with increased CD49a, CD103, CXCR6, PD-1 and CD57 expression, and decreased CD62L and S1PR1. EC-induced CD69+ T cells were poised for high production of pro-inflammatory cytokines and showed increased expression of T-helper 1 transcription factor T-bet. Our findings demonstrate that activated EC can induce functional specialization in T cells with sustained CD69 expression, increased cytokine response and a phenotypic profile reminiscent of TRM. Interaction with activated EC during transmigration into (inflamed) tissues thus contributes to TRM-residency priming.
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Affiliation(s)
- Judith Wienke
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Saskia R. Veldkamp
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Eva M. Struijf
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Fjodor A. Yousef Yengej
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - M. Marlot van der Wal
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Annet van Royen-Kerkhof
- Pediatric Rheumatology and Immunology, Wilhelmina Children’s Hospital, University Medical Center Utrecht, Utrecht, Netherlands
| | - Femke van Wijk
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, Netherlands
- *Correspondence: Femke van Wijk,
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8
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Park YJ, Rahman MS, Pang WK, Ryu DY, Jung MJ, Amjad S, Kim JM, Pang MG. Systematic multi-omics reveals the overactivation of T cell receptor signaling in immune system following bisphenol A exposure. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 308:119590. [PMID: 35752395 DOI: 10.1016/j.envpol.2022.119590] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 05/17/2022] [Accepted: 06/04/2022] [Indexed: 06/15/2023]
Abstract
Bisphenol A (BPA) is pervasive in the environment, and exposure to BPA may increase the incidence of noncommunicable diseases like autoimmune diseases and cancer. Although BPA causes immunological problems at the cellular level, no system-level research has been conducted on this. Hence, in this study, we aimed to gain a better understanding of the biological response to BPA exposure and its association with immunological disorders. For that, we explored the transcriptome and the proteomic modifications at the systems and cellular levels following BPA exposure. Our integrated multi-omics data showed the alteration of the T cell receptor (TCR) signaling pathway at both levels. The proportion of enlarged T cells increased with upregulation of CD69, a surface marker of early T cell activation, even though the number of T cells reduced after BPA exposure. Additionally, on BPA exposure, the levels of pLCK and pSRC increased in T cells, while that of pLAT decreased. Following BPA exposure, we investigated cytokine profiles and discovered that chitinase 3 Like 1 and matrix metalloproteinase 9 were enriched in T cells. These results indicated that T cells were hyperactivated by CD69 stimulation, and phosphorylation of SRC accelerated on BPA exposure. Hence, alteration in the TCR signaling pathway during development and differentiation due to BPA exposure could lead to insufficient and hasty activation of TCR signaling in T cells, which could modify cytokine profiles, leading to increased environmental susceptibility to chronic inflammation or diseases, increasing the chance of autoimmune diseases and cancer. This study enhances our understanding of the effects of environmental perturbations on immunosuppression at molecular, cellular, and systematic levels following pubertal BPA exposure, and may help develop better predictive, preventative, and therapeutic techniques.
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Affiliation(s)
- Yoo-Jin Park
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, South Korea
| | - Md Saidur Rahman
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, South Korea
| | - Won-Ki Pang
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, South Korea
| | - Do-Yeal Ryu
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, South Korea
| | - Min-Ji Jung
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, South Korea
| | - Shehreen Amjad
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, South Korea
| | - Jun-Mo Kim
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, South Korea
| | - Myung-Geol Pang
- Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, South Korea.
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9
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Lu S, Sun Z, Liu L, Li P, Li B, Li W, Wu Z, Zhao M, Liu W, Wang Y, Wang B. Tumor-Derived Exosomes Regulate Apoptosis of CD45+EpCAM+ Cells in Lung Cancer. Front Immunol 2022; 13:903882. [PMID: 35711455 PMCID: PMC9192438 DOI: 10.3389/fimmu.2022.903882] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 04/27/2022] [Indexed: 01/01/2023] Open
Abstract
Lung cancer has the highest mortality rate among human cancers, and the majority of deaths result from metastatic spread. The tumor microenvironment plays an important role in suppressing the immune surveillance and elimination of tumor cells. A few studies have reported the presence of CD45+EpCAM+ double-positive cells in cancer, but the underlying mechanism remains unclear with respect to how these cells originate and their function in cancer biology. In this study, we analyzed 25 lung tumor samples. We confirmed the presence of CD45+EpCAM+ cells in lung cancer, and these cells exhibited higher apoptosis than CD45+EpCAM− cells. Using co-culture of lung cancer cell-derived exosomes with healthy donor peripheral blood mononuclear cells, we recapitulated CD45+EpCAM+ cell formation and increased apoptosis that occurs in patients with primary lung cancer. Further analysis suggested that microRNAs in lung cancer cell-derived exosomes may alter the gene expression profile of CD45+EpCAM+ cells, resulting in elevated TP53 expression and increased apoptosis. To our knowledge, this is the first report of cancer cell-derived exosomes that can inhibit the immune system by promoting immune cell apoptosis.
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Affiliation(s)
- Shixiang Lu
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Zhen Sun
- Department of Research and Development, Sino-Cell Biomed Co., Ltd., Qingdao, China
| | - Lili Liu
- School of Basic Medicine, Qingdao University, Qingdao, China
| | - Peng Li
- Department of Thoracic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Bin Li
- Department of Research and Development, Sino-Cell Biomed Co., Ltd., Qingdao, China
| | - Wenjing Li
- Department of Research and Development, Sino-Cell Biomed Co., Ltd., Qingdao, China
| | - Zhaojun Wu
- Department of Research and Development, Sino-Cell Biomed Co., Ltd., Qingdao, China
| | - Mingming Zhao
- Department of Research and Development, Sino-Cell Biomed Co., Ltd., Qingdao, China
| | - Wenna Liu
- Department of Research and Development, Sino-Cell Biomed Co., Ltd., Qingdao, China
| | - Yongjie Wang
- Department of Thoracic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
- *Correspondence: Yongjie Wang, ; Bin Wang,
| | - Bin Wang
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao, China
- *Correspondence: Yongjie Wang, ; Bin Wang,
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10
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Wang J, Fan Q, Yu T, Zhang Y. Identifying the hub genes and immune cell infiltration in synovial tissue between osteoarthritic and rheumatoid arthritic patients by bioinformatic approach. Curr Pharm Des 2021; 28:497-509. [PMID: 34736376 DOI: 10.2174/1381612827666211104154459] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/28/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Osteoarthritis (OA) and rheumatoid arthritis (RA) are two common diseases that result in limb disability and a decrease in quality of life. The major symptoms of OA and RA are pain, swelling, stiffness, and malformation of joints, and each disease also has unique characteristics. OBJECTIVE To compare the pathological mechanisms of OA and RA via weighted correlation network analysis (WGCNA) and immune infiltration analysis and find potential diagnostic and pharmaceutical targets for the treatment of OA and RA. METHODS The gene expression profiles of ten OA and ten RA synovial tissue samples were downloaded from the Gene Expression Omnibus (GEO) database (GSE55235). After obtaining differentially expressed genes (DEGs) via GEO2R, WGCNA was conducted using an R package, and modules and genes that were highly correlated with OA and RA were identified. Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment, and protein-protein interaction (PPI) network analyses were also conducted. Hub genes were identified using the Search Tool for the Retrieval of Interacting Genes (STRING) and Cytoscape software. Immune infiltration analysis was conducted using the Perl program and CIBERSORT software. RESULTS Two hundred ninety-nine DEGs, 24 modules, 16 GO enrichment terms, 6 KEGG pathway enrichment terms, 10 hub genes (CXCL9, CXCL10, CXCR4, CD27, CD69, CD3D, IL7R, STAT1, RGS1, and ISG20), and 8 kinds of different infiltrating immune cells (plasma cells, CD8 T cells, activated memory CD4 T cells, T helper follicular cells, M1 macrophages, Tregs, resting mast cells, and neutrophils) were found to be involved in the different pathological mechanisms of OA and RA. CONCLUSION Inflammation-associated genes were the top differentially expressed hub genes between OA and RA, and their expression was downregulated in OA. Genes associated with lipid metabolism may have upregulated expression in OA. In addition, immune cells that participate in the adaptive immune response play an important role in RA. OA mainly involves immune cells that are associated with the innate immune response.
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Affiliation(s)
- Junjie Wang
- Qingdao University, Qingdao, Shandong 266000. China
| | - Qin Fan
- Qingdao University, Qingdao, Shandong 266000. China
| | - Tengbo Yu
- Qingdao University, Qingdao, Shandong 266000. China
| | - Yingze Zhang
- Qingdao University, Qingdao, Shandong 266000. China
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11
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Tokura Y, Phadungsaksawasdi P, Kurihara K, Fujiyama T, Honda T. Pathophysiology of Skin Resident Memory T Cells. Front Immunol 2021; 11:618897. [PMID: 33633737 PMCID: PMC7901930 DOI: 10.3389/fimmu.2020.618897] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/21/2020] [Indexed: 12/11/2022] Open
Abstract
Tissue resident memory T (TRM) cells reside in peripheral, non-lymphoid tissues such as the skin, where they act as alarm-sensor cells or cytotoxic cells. Physiologically, skin TRM cells persist for a long term and can be reactivated upon reinfection with the same antigen, thus serving as peripheral sentinels in the immune surveillance network. CD8+CD69+CD103+ TRM cells are the well-characterized subtype that develops in the epidermis. The local mediators such as interleukin (IL)-15 and transforming growth factor (TGF)-β are required for the formation of long-lived TRM cell population in skin. Skin TRM cells engage virus-infected cells, proliferate in situ in response to local antigens and do not migrate out of the epidermis. Secondary TRM cell populations are derived from pre-existing TRM cells and newly recruited TRM precursors from the circulation. In addition to microbial pathogens, topical application of chemical allergen to skin causes delayed-type hypersensitivity and amplifies the number of antigen-specific CD8+ TRM cells at challenged site. Skin TRM cells are also involved in the pathological conditions, including vitiligo, psoriasis, fixed drug eruption and cutaneous T-cell lymphoma (CTCL). The functions of these TRM cells seem to be different, depending on each pathology. Psoriasis plaques are seen in a recurrent manner especially at the originally affected sites. Upon stimulation of the skin of psoriasis patients, the CD8+CD103+CD49a- TRM cells in the epidermis seem to be reactivated and initiate IL-17A production. Meanwhile, autoreactive CD8+CD103+CD49a+ TRM cells secreting interferon-γ are present in lesional vitiligo skin. Fixed drug eruption is another disease where skin TRM cells evoke its characteristic clinical appearance upon administration of a causative drug. Intraepidermal CD8+ TRM cells with an effector-memory phenotype resident in the skin lesions of fixed drug eruption play a major contributing role in the development of localized tissue damage. CTCL develops primarily in the skin by a clonal expansion of a transformed TRM cells. CD8+ CTCL with the pagetoid epidermotropic histology is considered to originate from epidermal CD8+ TRM cells. This review will discuss the current understanding of skin TRM biology and their contribution to skin homeostasis and diseases.
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Affiliation(s)
- Yoshiki Tokura
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan.,Department of Cellular & Molecular Anatomy, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | | | - Kazuo Kurihara
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Toshiharu Fujiyama
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - Tetsuya Honda
- Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan
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12
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Almanzar G, Kienle F, Schmalzing M, Maas A, Tony HP, Prelog M. Tofacitinib modulates the VZV-specific CD4+ T cell immune response in vitro in lymphocytes of patients with rheumatoid arthritis. Rheumatology (Oxford) 2020; 58:2051-2060. [PMID: 31106368 DOI: 10.1093/rheumatology/kez175] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 04/05/2019] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE RA is a chronic inflammatory disease characterized by lymphocyte infiltration and release of inflammatory cytokines. Previous studies have shown that treatment with Janus kinase inhibitors, such as tofacitinib, increased the incidence rate of herpes zoster compared with conventional DMARDs. Therefore, this study aimed to investigate the effect of tofacitinib on the varicella-zoster-virus (VZV)-specific T cell immune response. METHODS The effect of tofacitinib on the VZV-specific T cell immune response was determined by evaluating the IFNγ production, the proliferative capacity, the VZV-induced differentiation into effector and memory T cells, the expression of activation marker CD69 and helper T cell type 1 (Th1)-characteristic chemokine receptors, such as CXCR3 and CCR5, as well as cytotoxic activity (perforin and granzyme B expression) of CD4+ T cells of patients with RA compared with healthy donors upon stimulation with VZV antigen in vitro. RESULTS Tofacitinib significantly reduced the IFNγ production, proliferation, activation, and CXCR3 expression of VZV-specific CD4+ T cells in a dose-dependent manner in short- and long-term lymphocyte culture. No effect on the distribution of naive, effectors or memory, or on the expression of perforin or granzyme B by VZV-specific CD4+ T cells was observed. CONCLUSION This study showed that tofacitinib significantly modulated the Th1 response to VZV. The poor VZV-specific cellular immune response in patients with RA may be considered in recommendations regarding appropriate vaccination strategies for enhancing the VZV-specific Th1 response.
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Affiliation(s)
- Giovanni Almanzar
- Department of Pediatrics, Pediatric Rheumatology/Special Immunology, Würzburg, Germany
| | - Felix Kienle
- Department of Pediatrics, Pediatric Rheumatology/Special Immunology, Würzburg, Germany
| | - Marc Schmalzing
- Department of Internal Medicine II, Rheumatology and Immunology, University Hospital Würzburg, Würzburg, Germany
| | - Anna Maas
- Department of Pediatrics, Pediatric Rheumatology/Special Immunology, Würzburg, Germany
| | - Hans-Peter Tony
- Department of Internal Medicine II, Rheumatology and Immunology, University Hospital Würzburg, Würzburg, Germany
| | - Martina Prelog
- Department of Pediatrics, Pediatric Rheumatology/Special Immunology, Würzburg, Germany
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13
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Gorabi AM, Hajighasemi S, Kiaie N, Gheibi Hayat SM, Jamialahmadi T, Johnston TP, Sahebkar A. The pivotal role of CD69 in autoimmunity. J Autoimmun 2020; 111:102453. [PMID: 32291138 DOI: 10.1016/j.jaut.2020.102453] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/31/2020] [Accepted: 03/31/2020] [Indexed: 02/06/2023]
Abstract
Autoimmune disorders are outcomes of impaired activity of the immune system regarding the maintenance of tolerance, which results in tissue damage secondary to an excess in the inflammatory response. Under normal conditions, the cells in the adaptive immune system are highly controlled to remain unresponsive against self-antigens (self-Ags) through various mechanisms and during different stages of maturation. CD69 (cluster of differentiation 69), a C-type lectin disulfide-linked homodimer, is expressed on different leukocytes, including newly-activated lymphocytes, certain subtypes of memory T-cells, infiltrating lymphocytes isolated from patients with chronic inflammatory disorders, and regulatory T-cells (Tregs). Cumulative evidence from in vitro and in vivo studies has revealed an immunoregulatory role for CD69. This marker has been reported to play a controversial role in chronic human inflammatory disorders. Many investigations have linked the absence of CD69 with a predisposition to inflammatory and/or autoimmune conditions, which indicates an immunoregulatory function for CD69 by mechanisms such as controlling the balance between differentiation of Th/Treg cells and enhancing the suppressive activity of Tregs. However, some reports from human studies have indicated that CD69 may exert a stimulatory effect on the inflammatory response. In this review, we first present a brief summary of the concept of 'immune tolerance' and, subsequently, review previous studies to uncover the details that underlie the immunoregulatory effects of CD69.
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Affiliation(s)
- Armita Mahdavi Gorabi
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeideh Hajighasemi
- Department of Medical Biotechnology, Faculty of Paramedicine, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Nasim Kiaie
- Research Center for Advanced Technologies in Cardiovascular Medicine, Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Tannaz Jamialahmadi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Thomas P Johnston
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Kansas City, MO, USA
| | - Amirhossein Sahebkar
- Halal Research Center of IRI, FDA, Tehran, Iran; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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14
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Chemin K, Gerstner C, Malmström V. Effector Functions of CD4+ T Cells at the Site of Local Autoimmune Inflammation-Lessons From Rheumatoid Arthritis. Front Immunol 2019; 10:353. [PMID: 30915067 PMCID: PMC6422991 DOI: 10.3389/fimmu.2019.00353] [Citation(s) in RCA: 137] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 02/11/2019] [Indexed: 12/17/2022] Open
Abstract
Infiltration of memory CD4+ T cells in synovial joints of Rheumatoid Arthritis (RA) patients has been reported since decades. Moreover, several genome wide association studies (GWAS) pinpointing a key genetic association between the HLA-DR locus and RA have led to the generally agreed hypothesis that CD4+ T cells are directly implicated in the disease. Still, RA is a heterogeneous disease and much effort has been made to understand its different facets. T cell differentiation is driven by mechanisms including antigen stimulation, co-stimulatory signals and cytokine milieu, all of which are abundant in the rheumatic joint, implying that any T cells migrating into the joint may be further affected locally. In parallel to the characterization and classification of T-cell subsets, the contribution of different effector T cells to RA has been investigated in numerous studies though sometimes with contradictory results. In particular, the frequency of Th1 and Th17 cells has been assessed in the synovial joints with various results that could, at least partly, be explained by the stage of the disease. For regulatory T cells, it is largely accepted that they accumulate in RA synovial fluid and that the equilibrium between regulatory T cells and effector cells is a key factor in controlling inflammation processes involved in RA. Recent phenotypic studies describe the possible implication of a novel subset of peripheral T helper cells (Tph) important for T-B cell cross talk and plasma cell differentiation in the RA joint of ACPA+ (autoantibodies against citrullinated proteins) RA patients. Finally, cytotoxic CD4+ T cells, historically described as increased in the peripheral blood of RA patients have attracted new attention in the last years. In view of the recently identified peripheral T-cell subsets, we will integrate immunological data as well as information on genetic variants and therapeutic strategy outcomes into our current understanding of the width of effector T cells. We will also integrate tissue-resident memory T cell aspects, and discuss similarities and differences with inflammatory conditions in skin (psoriasis) and mucosal organs (Crohn's disease).
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Affiliation(s)
- Karine Chemin
- Division of Rheumatology, Department of Medicine, Karolinska Institute, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Christina Gerstner
- Division of Rheumatology, Department of Medicine, Karolinska Institute, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Vivianne Malmström
- Division of Rheumatology, Department of Medicine, Karolinska Institute, Karolinska University Hospital Solna, Stockholm, Sweden
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15
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Kimura MY, Hayashizaki K, Tokoyoda K, Takamura S, Motohashi S, Nakayama T. Crucial role for CD69 in allergic inflammatory responses: CD69-Myl9 system in the pathogenesis of airway inflammation. Immunol Rev 2018; 278:87-100. [PMID: 28658550 DOI: 10.1111/imr.12559] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
CD69 has been known as an early activation marker of lymphocytes; whereas, recent studies demonstrate that CD69 also has critical functions in immune responses. Early studies using human samples revealed the involvement of CD69 in various inflammatory diseases including asthma. Moreover, murine disease models using Cd69-/- mice and/or anti-CD69 antibody (Ab) treatment have revealed crucial roles for CD69 in inflammatory responses. However, it had not been clear how the CD69 molecule contributes to the pathogenesis of inflammatory diseases. We recently elucidated a novel mechanism, in which the interaction between CD69 and its ligands, myosin light chain 9, 12a and 12b (Myl9/12) play a critical role in the recruitment of activated T cells into the inflammatory lung. In this review, we first summarize CD69 function based on its structure and then introduce the evidence for the involvement of CD69 in human diseases and murine disease models. Then, we will describe how we discovered CD69 ligands, Myl9 and Myl12, and how the CD69-Myl9 system regulates airway inflammation. Finally, we will discuss possible therapeutic usages of the blocking Ab to the CD69-Myl9 system.
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Affiliation(s)
- Motoko Y Kimura
- Department of Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Koji Hayashizaki
- Department of Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Koji Tokoyoda
- Department of Osteoimmunology, German Rheumatism Research Centre (DRFZ) Berlin, Berlin, Germany
| | - Shiki Takamura
- Department of Immunology, Kindai University Faculty of Medicine, Osaka, Japan
| | - Shinichiro Motohashi
- Department of Medical Immunology Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Toshinori Nakayama
- Department of Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan
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16
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A critical epitope in CD147 facilitates memory CD4 + T-cell hyper-activation in rheumatoid arthritis. Cell Mol Immunol 2018; 16:568-579. [PMID: 29563614 PMCID: PMC6804595 DOI: 10.1038/s41423-018-0012-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 02/01/2018] [Accepted: 02/01/2018] [Indexed: 12/20/2022] Open
Abstract
The abnormal activation of CD4+CD45RO+ memory T (Tm) cells plays an important role in the pathogenesis of rheumatoid arthritis (RA). Previous studies have shown that CD147 participates in T-cell activation. However, it remains unclear whether CD147 is involved in abnormal Tm-cell activation in RA patients. In this study, we demonstrated that CD147 was predominantly upregulated in Tm cells derived from RA patients. The anti-CD147 mAb 5A12 specifically inhibited Tm-cell activation and proliferation and further restrained osteoclastogenesis. Using a structural-functional approach, we depicted the interface between 5A12 and CD147. This allowed us to identify two critical residues, Lys63 and Asp65, as potential targets for RA treatment, as the double mutation K63A/D65A inhibited Tm-cell activation, mimicking the neutralization by 5A12. This study provides not only a theoretical basis for a "CD147-Tm/Osteoclast-RA chain" for the potential prevention and treatment of RA or other T-cell-mediated autoimmune diseases but also a new target for related drug design and development.
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17
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Cibrián D, Sánchez-Madrid F. CD69: from activation marker to metabolic gatekeeper. Eur J Immunol 2017; 47:946-953. [PMID: 28475283 PMCID: PMC6485631 DOI: 10.1002/eji.201646837] [Citation(s) in RCA: 528] [Impact Index Per Article: 75.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/17/2017] [Accepted: 05/03/2017] [Indexed: 12/14/2022]
Abstract
CD69 is a membrane-bound, type II C-lectin receptor. It is a classical early marker of lymphocyte activation due to its rapid appearance on the surface of the plasma membrane after stimulation. CD69 is expressed by several subsets of tissue resident immune cells, including resident memory T (TRM) cells and gamma delta (γδ) T cells, and is therefore considered a marker of tissue retention. Recent evidence has revealed that CD69 regulates some specific functions of selected T-cell subsets, determining the migration-retention ratio as well as the acquisition of effector or regulatory phenotypes. Specifically, CD69 regulates the differentiation of regulatory T (Treg) cells as well as the secretion of IFN-γ, IL-17, and IL-22. The identification of putative CD69 ligands, such as Galectin-1 (Gal-1), suggests that CD69-induced signaling can be regulated not only during cognate contacts between T cells and antigen-presenting cells in lymphoid organs, but also in the periphery, where cytokines and other metabolites control the final outcome of the immune response. Here, we will discuss new aspects of the molecular signaling mediated by CD69 and its involvement in the metabolic reprogramming regulating TH-effector lineages.
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MESH Headings
- Animals
- Antigen-Presenting Cells/immunology
- Antigen-Presenting Cells/physiology
- Antigens, CD/genetics
- Antigens, CD/immunology
- Antigens, CD/metabolism
- Antigens, Differentiation, T-Lymphocyte/genetics
- Antigens, Differentiation, T-Lymphocyte/immunology
- Antigens, Differentiation, T-Lymphocyte/metabolism
- Cell Differentiation
- Cytokines/immunology
- Cytokines/metabolism
- Galectins/immunology
- Gene Expression Regulation
- Humans
- Interleukin-17/immunology
- Interleukin-17/metabolism
- Lectins, C-Type/genetics
- Lectins, C-Type/immunology
- Lectins, C-Type/metabolism
- Lymphocyte Activation
- Signal Transduction
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/physiology
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/physiology
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Affiliation(s)
- Danay Cibrián
- Hospital Universitario de la Princesa, Instituto Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid, Madrid, Spain
- Centro Nacional Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain
| | - Francisco Sánchez-Madrid
- Hospital Universitario de la Princesa, Instituto Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid, Madrid, Spain
- Centro Nacional Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, Instituto de Salud Carlos III, Madrid, Spain
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18
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Abstract
Recent researches are revealing the importance of a new subset of memory T cells called resident memory T cells (TRMs). Once they enter the tissues according to their tissue-homing receptors, TRMs do not go back to circulation and stay in the same tissues for a long time. These T cells are defined as expressing CD69 and/or CD103, and are known to show strong effector functions. It is considered that TRMs have an important role against infection in barrier tissues such as GI tract, skin, respiratory system and reproductive tract. Furthermore, recent reports indicate their roles in organ-specific chronic inflammatory disorders, autoimmune disorders and tumor immunology even in non-barrier tissues such as central nerve system, lymphatic tissue, liver, kidney, pancreas and joint. Here in this session, the author organized what have been known about TRM both in mouse and human, including the development, functional activities and relation of TRM to disease manifestation, for the detailed understanding of this fraction.
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Affiliation(s)
- Rei Watanabe
- Department of Dermatology, Faculty of Medicine, University of Tsukuba
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19
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The effect of timing of antiretroviral therapy on CD4+ T-cell reconstitution in the intestine of HIV-infected patients. Mucosal Immunol 2016; 9:265-74. [PMID: 26129649 DOI: 10.1038/mi.2015.58] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 05/28/2015] [Indexed: 02/04/2023]
Abstract
Whether and to what extent gut mucosal CD4(+) T cells of HIV-infected patients can be restored by combination antiretroviral therapy (cART) is not yet fully resolved. We studied absolute numbers, differentiation, and activation of mucosal CD4(+) T cells at different stages of HIV infection and assessed the effect of timing of cART initiation on this cell population. Mucosal CD4(+) T-cell numbers were severely reduced at all stages of chronic infection, but normal in patients with acute infection. In patients with initiation of cART during chronic HIV infection, mucosal CD4(+) T cells restored to less than half of the numbers in controls. However, in patients who initiated cART during acute HIV infection, mucosal CD4(+) T-cell numbers were fully preserved and markers of microbial translocation and inflammation reversed to normal. The proportion of mucosal effector memory CD4(+) T cells normalized only if cART was initiated at >350 CD4(+) T cells per μl blood but not with delayed treatment. In conclusion, mucosal CD4(+) T-cell numbers can be preserved if cART is initiated in acute HIV infection. In chronically HIV-infected patients, early cART improves mucosal CD4(+) T-cell differentiation but cannot prevent the persistent lack of total CD4(+) T cells.
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20
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Carvalheiro H, Duarte C, Silva‐Cardoso S, da Silva JAP, Souto‐Carneiro MM. CD8+ T Cell Profiles in Patients With Rheumatoid Arthritis and Their Relationship to Disease Activity. Arthritis Rheumatol 2015; 67:363-71. [DOI: 10.1002/art.38941] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 10/28/2014] [Indexed: 01/24/2023]
Affiliation(s)
| | - Cátia Duarte
- University of Coimbra and Coimbra University HospitalCoimbraPortugal
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21
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Cérbulo-Vázquez A, Figueroa-Damián R, Arriaga-Pizano LA, Hernández-Andrade E, Mancilla-Herrera I, Flores-Mejía LA, Arteaga-Troncoso G, López-Macías C, Isibasi A, Mancilla-Ramírez J. Pregnant women infected with pandemic H1N1pdm2009 influenza virus displayed overproduction of peripheral blood CD69+ lymphocytes and increased levels of serum cytokines. PLoS One 2014; 9:e107900. [PMID: 25254368 PMCID: PMC4177855 DOI: 10.1371/journal.pone.0107900] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 08/17/2014] [Indexed: 12/20/2022] Open
Abstract
The first pandemic of the 21st century occurred in 2009 and was caused by the H1N1pdm influenza A virus. Severe cases of H1N1pdm infection in adults are characterized by sustained immune activation, whereas pregnant women are prone to more severe forms of influenza, with increased morbi-mortality. During the H1N1pdm09 pandemic, few studies assessed the immune status of infected pregnant women. The objective of this study was to evaluate the behavior of several immune markers in 13 H1N1pdm2009 virus-infected pregnant (PH1N1) women, in comparison to pregnant women with an influenza-like illness (ILI), healthy pregnant women (HP) and healthy non-pregnant women (HW). The blood leukocyte phenotypes and the serological cytokine and chemokine concentrations of the blood leukocytes, as measured by flow cytometry, showed that the CD69+ cell counts in the T and B-lymphocytes were significantly higher in the PH1N1 group. We found that pro-inflammatory (TNF-α, IL-1β, IL-6) and anti-inflammatory (IL-10) cytokines and some chemokines (CXCL8, CXCL10), which are typically at lower levels during pregnancy, were substantially increased in the women in the ILI group. Our findings suggest that CD69 overexpression in blood lymphocytes and elevated levels of serum cytokines might be potential markers for the discrimination of H1N1 disease from other influenza-like illnesses in pregnant women.
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Affiliation(s)
- Arturo Cérbulo-Vázquez
- Cell Biology Department, National Institute of Perinatology (INPer), Mexico City, Mexico
| | - Ricardo Figueroa-Damián
- Infectology and Immunology Department, National Institute of Perinatology (INPer), Mexico City, Mexico
| | - Lourdes A Arriaga-Pizano
- Medical Research Unit on Immunochemistry, National Medical Center "Siglo XXI", Social Security Mexican Institute, Mexico City, Mexico
| | - Edgar Hernández-Andrade
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Wayne State University, Hutzel Women's Hospital, Detroit, Michigan, United States of America
| | - Ismael Mancilla-Herrera
- Infectology and Immunology Department, National Institute of Perinatology (INPer), Mexico City, Mexico
| | - Luis Angel Flores-Mejía
- Medical Research Unit on Immunochemistry, National Medical Center "Siglo XXI", Social Security Mexican Institute, Mexico City, Mexico; Graduate program on Biomedical Sciences, UNAM, Mexico City, Mexico
| | | | - Constantino López-Macías
- Medical Research Unit on Immunochemistry, National Medical Center "Siglo XXI", Social Security Mexican Institute, Mexico City, Mexico
| | - Armando Isibasi
- Medical Research Unit on Immunochemistry, National Medical Center "Siglo XXI", Social Security Mexican Institute, Mexico City, Mexico
| | - Javier Mancilla-Ramírez
- Infectology and Immunology Department, National Institute of Perinatology (INPer), Mexico City, Mexico
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22
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González-Amaro R, Cortés JR, Sánchez-Madrid F, Martín P. Is CD69 an effective brake to control inflammatory diseases? Trends Mol Med 2013; 19:625-32. [PMID: 23954168 PMCID: PMC4171681 DOI: 10.1016/j.molmed.2013.07.006] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 07/02/2013] [Accepted: 07/18/2013] [Indexed: 12/28/2022]
Abstract
Early studies described CD69 as a leukocyte activation marker, and suggested its involvement in the activation of different leukocyte subsets as well as in the pathogenesis of chronic inflammation. However, recent investigations have showed that CD69 knockout mice exhibit an enhanced or reduced susceptibility to different experimental models of inflammatory diseases, including those mediated by T helper 17 (Th17) lymphocytes. In this regard, the expression of CD69, both in Th17 lymphocytes and by a subset of regulatory T cells, has an important role in the control of the immune response and the inflammatory phenomenon. Therefore, different evidence indicates that CD69 exerts a complex immunoregulatory role in humans, and that it could be considered as a target molecule for the therapy of immune-mediated diseases.
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Affiliation(s)
| | - Jose R. Cortés
- Department of Vascular Biology and Inflammation, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain, 28029
| | - Francisco Sánchez-Madrid
- Department of Vascular Biology and Inflammation, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain, 28029
- Servicio de Inmunología, Hospital de La Princesa, Universidad Autónoma de Madrid, Madrid, Spain, 28006
| | - Pilar Martín
- Department of Vascular Biology and Inflammation, Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, Spain, 28029
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Liu L, Lee J, Fu G, Liu X, Wang H, Zhang Z, Zheng Q. Activation of peripheral blood CD3(+) T-lymphocytes in patients with atrial fibrillation. Int Heart J 2012; 53:221-4. [PMID: 22878798 DOI: 10.1536/ihj.53.221] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Atrial fibrillation (AF) is a common disease with a poorly understood pathophysiological mechanism. Increasing evidence indicates that AF may be associated with immunologic inflammation responses, but it remains unclear whether activation of peripheral blood CD3(+) T-lymphocytes plays a role in the pathogenesis of AF. The aim of this study was to evaluate this phenomenon. Fifty paroxysmal AF patients and 56 persistent AF patients who underwent successful electrical cardioversion were enrolled. The percentages of CD69 and human leukocyte antigen DR (HLA-DR) positive peripheral blood CD3(+) T-lymphocytes, which indicate T-lymphocyte activation, were examined by flow cytometric analysis in the patients and 51 healthy controls. The patient groups had higher levels of CD69 and HLA-DR than the healthy controls. During the 3-month follow-up, 37 patients had recurrence of AF (recurrence group) and 50 patients remained in sinus (sinus group). The CD69 and HLA-DR levels in the sinus group were all significantly down-regulated at follow-up compared with before cardioversion. However, there were no statistically significant differences between the CD69 and HLA-DR levels in the recurrence group at follow-up and before cardioversion. Our findings suggest that activation of peripheral blood CD3(+) T-lymphocytes was associated with AF, and might be a diagnostic or therapeutic marker.
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Affiliation(s)
- Li Liu
- Department of Cardiology of Tangdu Hospital, Fourth Military Medical University, Xi'an, China
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24
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Wang L, Kang N, Zhou J, Guo Y, Zhang X, Cui L, Ba D, He W. Downregulation of CD94/NKG2A inhibitory receptor on decreased γδ T cells in patients with systemic lupus erythematosus. Scand J Immunol 2012; 76:62-9. [PMID: 22486170 DOI: 10.1111/j.1365-3083.2012.02705.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
γδ T cells are characterized by recognizing conserved endogenous and stress-induced antigens without antigen presentation. It has been show that γδ T cells play an important role in anti-tumour/microbe responses, but their function in autoimmune diseases is yet not clear. Here, we reported the quantity and phenotype of peripheral blood γδ T cells from systemic lupus erythematosus (SLE). Both the percentages of γδ T cells in peripheral blood and among CD3(+) T cells of patients with SLE were significantly decreased, regardless of disease activity. However, activating marker CD69 and HLA-DR was upregulated, while inhibiting receptor CD94/NKG2A was downregulated in γδ T cells of patients with SLE. The expression of CD69 is negatively correlated with the quantity of γδ T cells. Moreover, the expression of CD94/NKG2A remained low even with antigen stimulation on those γδ T cells. Our results suggested that the low expression level of CD94/NKG2A upon γδ T cell activation might lead to the over-activation of γδ T cells in patients with SLE. These findings will be useful in elucidating the roles of γδ T cells in SLE pathogenesis.
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Affiliation(s)
- L Wang
- Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
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25
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Increased frequency and compromised function of T regulatory cells in systemic sclerosis (SSc) is related to a diminished CD69 and TGFbeta expression. PLoS One 2009; 4:e5981. [PMID: 19543397 PMCID: PMC2695559 DOI: 10.1371/journal.pone.0005981] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2009] [Accepted: 05/23/2009] [Indexed: 01/07/2023] Open
Abstract
Background Regulatory T cells (Tregs) are essential in the control of tolerance. Evidence implicates Tregs in human autoimmune conditions. Here we investigated their role in systemic sclerosis (SSc). Methods/Principal Findings Patients were subdivided as having limited cutaneous SSc (lcSSc, n = 20) or diffuse cutaneous SSc (dcSSc, n = 48). Further subdivision was made between early dcSSc (n = 24) and late dcSSc (n = 24) based upon the duration of disease. 26 controls were studied for comparison. CD3+ cells were isolated using FACS and subsequently studied for the expression of CD4, CD8, CD25, FoxP3, CD127, CD62L, GITR, CD69 using flow cytometry. T cell suppression assays were performed using sorted CD4CD25highCD127- and CD4CD25lowCD127high and CD3+ cells. Suppressive function was correlated with CD69 surface expression and TGFβ secretion/expression. The frequency of CD4+CD25+ and CD25highFoxP3highCD127neg T cells was highly increased in all SSc subgroups. Although the expression of CD25 and GITR was comparable between groups, expression of CD62L and CD69 was dramatically lower in SSc patients, which correlated with a diminished suppressive function. Co-incubation of Tregs from healthy donors with plasma from SSc patients fully abrogated suppressive activity. Activation of Tregs from healthy donors or SSc patients with PHA significantly up regulated CD69 expression that could be inhibited by SSc plasma. Conclusions/Significance These results indicate that soluble factors in SSc plasma inhibit Treg function specifically that is associated with altered Treg CD69 and TGFβ expression. These data suggest that a defective Treg function may underlie the immune dysfunction in systemic sclerosis.
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26
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Rueda B, Fernandez-Gutierrez B, Balsa A, Pacual-Salcedo D, Lamas JR, Raya E, Gonzalez-Gay MA, Martin J. Investigation of CD69 as a new candidate gene for rheumatoid arthritis. ACTA ACUST UNITED AC 2008; 72:206-10. [PMID: 18627570 DOI: 10.1111/j.1399-0039.2008.01094.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aim of this study was to investigate the CD69 gene as a new functional candidate gene for rheumatoid arthritis (RA) genetic predisposition. A case-control association study including 933 RA patients and 800 healthy individuals was conducted. Five haplotype-tagging single nucleotide polymorphisms (SNPs) (rs929615, rs3176806, rs4763299, rs11052877, and rs3176789) covering the CD69 gene coding, 5' and 3' untranslated regions were selected as CD69 genetic markers and genotyped using a Taqman 5' allelic discrimination assay. No statistically significant differences were observed in the single marker association study with regard to either genotypic or allelic frequencies when considering the rs929615, rs3176806, rs4763299, rs11052877, and rs3176789 CD69 SNPs independently. According to these findings, no statistically significant skewing was observed between the RA patients and the controls in the distribution of CD69 haplotypes. In summary, our results do not support a major role for the CD69 gene polymorphisms in RA genetic predisposition in our population.
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Affiliation(s)
- B Rueda
- Consejo Superior de Investigaciones Científicas, Instituto de Parasitología y Biomedicina López-Neyra, Granada, Spain.
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27
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Rollín R, Marco F, Jover JA, García-Asenjo JA, Rodríguez L, López-Durán L, Fernández-Gutiérrez B. Early lymphocyte activation in the synovial microenvironment in patients with osteoarthritis: comparison with rheumatoid arthritis patients and healthy controls. Rheumatol Int 2008; 28:757-64. [DOI: 10.1007/s00296-008-0518-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2007] [Accepted: 12/16/2007] [Indexed: 10/22/2022]
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28
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Takizawa K, Kitani S, Takeuchi F, Yamamoto K. Enhanced expression of CD69 and CD25 antigen on human peripheral blood mononuclear cells by prolactin. Endocr J 2005; 52:635-41. [PMID: 16284445 DOI: 10.1507/endocrj.52.635] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Several clinical reports have suggested that prolactin (PRL) plays an important role in the pathogenesis of autoimmune diseases such as rheumatoid arthritis (RA) or systemic lupus erythematosus (SLE). We have investigated the influence of PRL on immune system, by evaluating the effects of PRL on the expression of CD69 and CD25 on human peripheral blood mononuclear cells (PBMCs). Human PBMCs obtained from healthy female volunteers were incubated with phytohemagglutinin (PHA) in the presence or absence of various concentrations of PRL. The expression of CD69 and CD25 was monitored using immunofluorescence staining and flow cytometry. PRL significantly enhanced the expression of CD69 and CD25 on activated PBMCs compared with that in the absence of PRL (p<0.05, paired t-test). Increasing doses of PRL enhanced the expression of CD69 up to 2 microg/ml and CD25 up to 1 microg/ml. The enhanced expression of CD69 was observed on CD8+ T lymphocytes but not on CD4+ T lymphocytes. Our data suggest that PRL can significantly enhance the expression of CD69 and CD25 molecule on human PBMCs when induced by PHA. However, PRL would have to be at optimal concentration in order to enhance their expression.
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Affiliation(s)
- Kenji Takizawa
- Institute of Oriental Medicine, Tokyo Women's Medical University, Japan
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29
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Black APB, Bhayani H, Ryder CAJ, Gardner-Medwin JMM, Southwood TR. T-cell activation without proliferation in juvenile idiopathic arthritis. ARTHRITIS RESEARCH 2002; 4:177-83. [PMID: 12010567 PMCID: PMC111019 DOI: 10.1186/ar403] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2001] [Revised: 08/07/2001] [Accepted: 08/31/2001] [Indexed: 11/25/2022]
Abstract
A study was done to determine if the differentiation and activation phenotype of T cells in synovial fluid (SF) from patients with juvenile idiopathic arthritis (JIA) is associated with T-cell proliferation in situ. Mononuclear cells were isolated from 44 paired samples of peripheral blood and SF. Differentiation and activation markers were determined on CD4 and CD8 T cells by flow cytometry. Cell-cycle analysis was performed by propidium iodide staining, and surface-marker expression was also assessed after culture of the T cells under conditions similar to those found in the synovial compartment. The majority of the T cells in the SF were CD45RO+CD45RBdull. There was greater expression of the activation markers CD69, HLA-DR, CD25 and CD71 on T cells from SF than on those from peripheral blood. Actively dividing cells accounted for less than 1% of the total T-cell population in SF. The presence or absence of IL-16 in T-cell cultures with SF or in a hypoxic environment did not affect the expression of markers of T-cell activation. T cells from the SF of patients with JIA were highly differentiated and expressed early and late markers of activation with little evidence of in situ proliferation. This observation refines and extends previous reports of the SF T-cell phenotype in JIA and may have important implications for our understanding of chronic inflammation.
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Affiliation(s)
- Antony PB Black
- MRC Human Immunology Unit, Institute of Molecular Medicine, John Radcliffe Hospital, Headington, Oxford, UK
| | - Hansha Bhayani
- Formerly of Department of Rheumatology, University of Birmingham
- Deceased
| | - Clive AJ Ryder
- Department of Paediatric Rheumatology, Birmingham Children's Hospital-NHS Trust, Birmingham, UK
| | - Janet MM Gardner-Medwin
- Department of Paediatric Rheumatology, Birmingham Children's Hospital-NHS Trust, Birmingham, UK
| | - Taunton R Southwood
- Department of Rheumatology, University of Birmingham, Edgbaston, Birmingham, UK
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30
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Schowengerdt KO, Fricker FJ, Bahjat KS, Kuntz ST. Increased expression of the lymphocyte early activation marker CD69 in peripheral blood correlates with histologic evidence of cardiac allograft rejection. Transplantation 2000; 69:2102-7. [PMID: 10852605 DOI: 10.1097/00007890-200005270-00023] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND The human leukocyte membrane protein CD69 is an early activation marker induced in T lymphocytes, B cells, and natural killer cells in response to inflammatory stimuli. Cardiac catheterization and endomyocardial biopsy remain the "gold standard" for diagnosis of rejection after transplantation, and noninvasive methods of rejection surveillance have long been sought. We studied CD69 membrane protein expression in peripheral blood T lymphocytes obtained from pediatric cardiac transplant recipients at the time of biopsy and correlated the results with histologic rejection scores. METHODS Heparinized whole blood samples were obtained from pediatric cardiac transplant recipients at the time of cardiac biopsy, as well as from control subjects. Lymphocytes were labeled with antibodies for CD3, CD4, CD8, and CD69 and analysis performed using flow cytometric methods. RESULTS Resting CD69 expression (measured as a percentage of gated events) was significantly increased in patients with concurrent histologic evidence of rejection (International Society for Heart and Lung Transplantation grade > or =3A) when compared to those with minimal or no rejection and controls. Although statistically significant for both lymphocyte subsets, this relationship was more pronounced for CD8+ T cells (P<0.001) than for CD4+ T cells (P=0.001). When data were analyzed by rejection score, a percentage activation of the CD8+ subset (CD69+/CD8+ cells as a percentage of total gated events) exceeding 15% correlated with significant rejection. CONCLUSIONS Measurement of the expression of the early activation marker CD69 in peripheral blood lymphocytes by flow cytometry may provide a noninvasive means of assessing immune activation and possible rejection in cardiac transplant recipients.
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Affiliation(s)
- K O Schowengerdt
- Department of Pediatrics (Cardiology), University of Florida College of Medicine, Gainesville 32610, USA.
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31
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Activation of Peripheral Blood T Cells by Interaction and Migration Through Endothelium: Role of Lymphocyte Function Antigen-1/Intercellular Adhesion Molecule-1 and Interleukin-15. Blood 1999. [DOI: 10.1182/blood.v93.3.886.403k10_886_896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Cell adhesion molecules have a key role in the migration of T cells to inflammatory foci. However, the effect of the endothelial-lymphocyte interaction on the activation of the latter cells remains unresolved. We have studied the effect of resting and stimulated endothelial cells (ECs) on the activation of peripheral blood T cells (PBTLs), as assessed by the expression of CD69 and CD25 activation antigens. The incubation of PBTLs with tumor necrosis factor-–activated EC monolayers, either alive or fixed, induced the expression of CD69 but not CD25, preferentially in the CD8+CD45RO+ cell subset. Furthermore, it induced the production of cytokines such as IFN-γ, but not that of interleukin-2 (IL-2) and IL-4. EC treated with other stimuli such as IL-1β, IFN-γ, or lipopolysaccharide also showed the same proactivatory effect on T cells. Lymphocyte activation was almost completely inhibited by blocking anti-CD18 and anti–intercellular adhesion molecule-1 (anti–ICAM-1) monoclonal antibodies (MoAbs), but only slightly affected by MoAbs against CD49d, vascular cell adhesion molecule-1, and anti–IL-15. In addition, the interaction of PBTL with immobilized ICAM-1 induced CD69 expression in the same memory T-cell subset. IL-15 induced T-cell activation with expression of CD69 and CD25, and production of IFN-γ, and its effect was additive with that triggered by cell adhesion to either EC or immobilized ICAM-1. The transmigration of PBTLs through either confluent EC monolayers or ICAM-1–coated membranes also induced efficiently the expression of CD69. When IL-15 was used as chemoattractant in these assays, a further enhancement in CD69 expression was observed in migrated cells. Together these results indicate that stimulated endothelium may have an important role in T-cell activation, through the lymphocyte function antigen-1/ICAM-1 pathway, and that IL-15 efficiently cooperates in this phenomenon. These observations could account for the abundance of CD69+ cells in the lymphocytic infiltrates of several chronic inflammatory diseases.
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32
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Activation of Peripheral Blood T Cells by Interaction and Migration Through Endothelium: Role of Lymphocyte Function Antigen-1/Intercellular Adhesion Molecule-1 and Interleukin-15. Blood 1999. [DOI: 10.1182/blood.v93.3.886] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractCell adhesion molecules have a key role in the migration of T cells to inflammatory foci. However, the effect of the endothelial-lymphocyte interaction on the activation of the latter cells remains unresolved. We have studied the effect of resting and stimulated endothelial cells (ECs) on the activation of peripheral blood T cells (PBTLs), as assessed by the expression of CD69 and CD25 activation antigens. The incubation of PBTLs with tumor necrosis factor-–activated EC monolayers, either alive or fixed, induced the expression of CD69 but not CD25, preferentially in the CD8+CD45RO+ cell subset. Furthermore, it induced the production of cytokines such as IFN-γ, but not that of interleukin-2 (IL-2) and IL-4. EC treated with other stimuli such as IL-1β, IFN-γ, or lipopolysaccharide also showed the same proactivatory effect on T cells. Lymphocyte activation was almost completely inhibited by blocking anti-CD18 and anti–intercellular adhesion molecule-1 (anti–ICAM-1) monoclonal antibodies (MoAbs), but only slightly affected by MoAbs against CD49d, vascular cell adhesion molecule-1, and anti–IL-15. In addition, the interaction of PBTL with immobilized ICAM-1 induced CD69 expression in the same memory T-cell subset. IL-15 induced T-cell activation with expression of CD69 and CD25, and production of IFN-γ, and its effect was additive with that triggered by cell adhesion to either EC or immobilized ICAM-1. The transmigration of PBTLs through either confluent EC monolayers or ICAM-1–coated membranes also induced efficiently the expression of CD69. When IL-15 was used as chemoattractant in these assays, a further enhancement in CD69 expression was observed in migrated cells. Together these results indicate that stimulated endothelium may have an important role in T-cell activation, through the lymphocyte function antigen-1/ICAM-1 pathway, and that IL-15 efficiently cooperates in this phenomenon. These observations could account for the abundance of CD69+ cells in the lymphocytic infiltrates of several chronic inflammatory diseases.
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33
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Oppenheimer-Marks N, Lipsky PE. Adhesion molecules in rheumatoid arthritis. SPRINGER SEMINARS IN IMMUNOPATHOLOGY 1998; 20:95-114. [PMID: 9836371 DOI: 10.1007/bf00832001] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- N Oppenheimer-Marks
- Department of Internal Medicine, University of Texas Southwestern Medical School, Dallas 75235-8884, USA
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34
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Choy EH, Kingsley GH, Panayi GS. Anti-CD4 monoclonal antibodies in rheumatoid arthritis. SPRINGER SEMINARS IN IMMUNOPATHOLOGY 1998; 20:261-73. [PMID: 9836381 DOI: 10.1007/bf00832011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- E H Choy
- Rheumatology Unit, King's College Hospital, Dulwich, London, UK
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35
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Kutukculer N, Caglayan S, Aydogdu F. Study of pro-inflammatory (TNF-alpha, IL-1alpha, IL-6) and T-cell-derived (IL-2, IL-4) cytokines in plasma and synovial fluid of patients with juvenile chronic arthritis: correlations with clinical and laboratory parameters. Clin Rheumatol 1998; 17:288-92. [PMID: 9776110 DOI: 10.1007/bf01451007] [Citation(s) in RCA: 75] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Acute phase proteins, synovial fluid (SF) cellular infiltrates, pro-inflammatory (TNF-alpha, IL-1alpha, IL-6) and Th1 (IL-2) and Th2 (IL-4) derived cytokine levels both in plasma and SF were examined in pauciarticular and polyarticular juvenile chronic arthritis (JCA) patients during the active (n = 22) and inactive (n = 14) period in order to determine pathogenic mechanisms and correlations between cytokines and laboratory parameters showing disease activity. The erythrocyte sedimentation rate (ESR), serum C-reactive protein (CRP) and IgG concentrations were found to be significantly elevated in the active period of JCA. In pauciarticular JCA patients, when compared with their peripheral blood lymphocyte subpopulations, SF CD3+ cells (73.1%) and HLA-DR+ active T cells (22.5%) were found to be significantly increased. In the active period of JCA, plasma TNF-alpha and IL-6 concentrations were significantly elevated. Plasma IL-2 and IL-4 levels were not elevated and were found to be similar to those in the inactive phase and in healthy controls. SF IL-6, TNF-alpha and IL-1alpha levels were extremely high in all the patients. SF IL-4 and IL-2 levels were all undetectable. There was a significant correlation between ESR values and plasma IL-6 levels and between serum CRP levels and plasma IL-6 and TNF-alpha concentrations. In conclusion, increased local production of pro-inflammatory cytokines appears to account for the articular manifestations of JCA. The impaired production of anti-inflammatory Th2-derived cytokines (IL-4) seems to cause increased production of inflammatory cytokines acting on the balance between them. The deficit in IL-2 production was not suggested to be primarily involved in the pathogenesis. In addition, not only CRP and ESR values, but also plasma IL-6 and TNF-alpha concentrations may be used as markers of disease activity.
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Affiliation(s)
- N Kutukculer
- Department of Pediatrics, The Medical School, Ege University, Izmir, Turkey
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36
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Maurice MM, van der Voort EA, Leow A, Levarht N, Breedveld FC, Verweij CL. CD28 co-stimulation is intact and contributes to prolonged ex vivo survival of hyporesponsive synovial fluid T cells in rheumatoid arthritis. Eur J Immunol 1998; 28:1554-62. [PMID: 9603460 DOI: 10.1002/(sici)1521-4141(199805)28:05<1554::aid-immu1554>3.0.co;2-n] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
In rheumatoid arthritis (RA), T cells in the inflamed joint are considered to play a crucial role in the pathogenesis. However, despite the fact that synovial T cells have an activated memory phenotype, they are functionally suppressed upon combined CD3 and CD28 stimulation. Here, we analyzed the contribution of both CD3 and CD28 to the hyporesponsiveness of synovial T cells in RA. In contrast to the low CD3 responsiveness of synovial fluid (SF) T cells compared to peripheral blood (PB) T cells, the CD28 co-stimulatory response was observed to be unaffected. Hyporesponsiveness of SF T cells has previously been associated with decreased levels of intracellular glutathione (GSH), an antioxidant and regulator of the intracellular redox state. Treatment of SF T cells with N-acetylcysteine, an antioxidant and replenisher of GSH, selectively improved CD3-induced responses, while leaving CD28 responsiveness unaffected. These data show that the CD3 pathway is highly sensitive to intracellular GSH alterations, whereas CD28 responsiveness is relatively refractory. Furthermore, in support for a functional role of CD28 co-stimulation, it was demonstrated that CD28 ligation acted in synergy with the IL-2 receptor gamma chain signaling cytokine IL-15 in the enhancement of the ex vivo survival of SF T cells. These data indicate that CD28 co-stimulatory capacity of SF T cells, in contrast to CD3 stimulation, remains intact despite an altered intracellular redox state. Thereby, CD28 stimulation may contribute to the persistence of T cells at the site of inflammation, which might be of relevance in the pathogenesis of RA.
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Affiliation(s)
- M M Maurice
- Department of Rheumatology, Leiden University Medical Center, The Netherlands
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Hernández-García C, Fernández-Gutiérrez B, Morado IC, Bañares AA, Jover JA. The CD69 activation pathway in rheumatoid arthritis synovial fluid T cells. ARTHRITIS AND RHEUMATISM 1996; 39:1277-86. [PMID: 8702434 DOI: 10.1002/art.1780390803] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
OBJECTIVE To study the CD69 activation pathway in synovial fluid (SF) T lymphocytes from patients with rheumatoid arthritis (RA). METHODS Peripheral blood mononuclear cells (PBMC) or SF mononuclear cells (SFMC) were used in proliferation assays with anti-CD69, anti-CD28, anti-CD3, phorbol myristate acetate (PMA), and/or recombinant interleukin-2 (IL-2). CD69+, CD69-, and resting SF T cells were also proliferated. CD25 expression and production of IL-2 after CD69 activation were assessed by flow cytometry and in a bioassay with the IL-2-dependent cell line CTLL-2. RESULTS RA SFMC did not proliferate either in the presence of anti-CD69 monoclonal antibodies alone or with concomitant PMA activation, when compared with paired or control PBMC. Similar low proliferative responses via the CD3 or CD28 pathway with PMA were observed. This defective proliferation of RA SFMC after stimulation through the CD69 molecule was explained in part by a failure to express CD25 and to produce IL-2. SF CD69- T cells and resting SF T cells had higher rates of proliferation through the alternative costimulatory pathway CD28 than did SF CD69+ T cells or freshly isolated SF T cells. CONCLUSION Freshly isolated SF T cells present a profound state of hyporesponsiveness through the CD69 and CD28 costimulatory pathways. This state appears to be dependent on the activation status of SF T cells, since CD69- and resting SF T cells showed recovery of the ability to proliferate through the CD28 activation pathway.
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MESH Headings
- Antibodies, Monoclonal
- Antigens, CD/immunology
- Antigens, CD/physiology
- Antigens, Differentiation, T-Lymphocyte/immunology
- Antigens, Differentiation, T-Lymphocyte/physiology
- Arthritis, Rheumatoid/pathology
- Cell Division/physiology
- Female
- Flow Cytometry
- Humans
- Interleukin-2/biosynthesis
- Lectins, C-Type
- Male
- Receptors, Interleukin-2/biosynthesis
- Synovial Fluid/cytology
- T-Lymphocytes/cytology
- T-Lymphocytes/physiology
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Chen CK, Huang SC, Chen CL, Yen MR, Hsu HC, Ho HN. Increased expressions of CD69 and HLA-DR but not of CD25 or CD71 on endometrial T lymphocytes of nonpregnant women. Hum Immunol 1995; 42:227-32. [PMID: 7759310 DOI: 10.1016/0198-8859(94)00105-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
To investigate lymphocyte subpopulations and the status of T-cell activation at different phases of the menstrual cycle, lymphocytes in endometrial tissue were analyzed by dual-color flow cytometry in 39 patients. Compared with peripheral blood, the lymphocytes in the endometrium had a higher CD3-/(CD56+ or CD16+) ratio (25.2% +/- 6.8% vs 11.1% +/- 7.0%), but an inverted CD3+ CD8-/CD3+ CD8+ ratio (0.5 vs 1.8) and a minimal amount of B cells (3.3% +/- 3.1%). TcR gamma delta + T cells accounted for a minor proportion (7.8% +/- 5.1%) in endometrium. The proportions of TcR alpha beta + (85.0% +/- 6.6%) and CD3+ CD56+ (7.4% +/- 4.4%) endometrial T lymphocytes were found significantly different from those in peripheral blood (89.1% +/- 5.6% and 3.8% +/- 3.4%, respectively). As the endometrium proceeded from proliferative phase to luteal phase, the proportion of CD3+ CD8+ T cells in peripheral blood increased from 35.6% +/- 6.9% to 41.3% +/- 8.4% and CD3+ CD8- T cells decreased from 64.4% +/- 6.9% to 58.7% +/- 8.4%. The endometrial T cells expressed high levels of CD69 (84.1% +/- 18.9%) and DR (75.9% +/- 9.7%), but rarely expressed CD25 (7.0% +/- 5.4%) and CD71 (2.8% +/- 1.8%). The patterns of expression of these activation markers were similar in both proliferative and luteal phases. Our observations suggest that endometrial T lymphocytes are in a state of recent and persistent activation. Lymphocytes expressing the NK cell markers (CD56 or CD16) and CD8+ accounted for a significant proportion, suggesting that they may play important roles in local defense.
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MESH Headings
- Adult
- Antigens, CD/biosynthesis
- Antigens, Differentiation, B-Lymphocyte/biosynthesis
- Antigens, Differentiation, T-Lymphocyte/biosynthesis
- Corpus Luteum/immunology
- Endometrium/cytology
- Endometrium/immunology
- Female
- Flow Cytometry
- HLA-DR Antigens/biosynthesis
- Humans
- Lectins, C-Type
- Menstrual Cycle/immunology
- Middle Aged
- Receptors, Antigen, T-Cell/biosynthesis
- Receptors, Antigen, T-Cell, alpha-beta/biosynthesis
- Receptors, Antigen, T-Cell, gamma-delta/biosynthesis
- Receptors, Interleukin-2/biosynthesis
- Receptors, Transferrin
- T-Lymphocytes/immunology
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Affiliation(s)
- C K Chen
- Department of Obstetrics and Gynecology, School of Medicine and Hospital, National Taiwan University, Taipei, Republic of China
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Koval'chuk LV, Beda MV, Veselova AV, Dement'eva EG, Mishin VY, Chervinskaya TA, Il'ina NI. Dynamics of the expression of activation marker complex during polyclonal activation of human peripheral blood CD4+ and CD8+ lymphocytesin vitro. Bull Exp Biol Med 1994. [DOI: 10.1007/bf02444618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Iannone F, Corrigall VM, Kingsley GH, Panayi GS. Evidence for the continuous recruitment and activation of T cells into the joints of patients with rheumatoid arthritis. Eur J Immunol 1994; 24:2706-13. [PMID: 7957563 DOI: 10.1002/eji.1830241120] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Rheumatoid arthritis (RA) synovial fluid (SF) T cells express the activation markers CD69, HLA-DR and very late antigen (VLA)-1, but surprisingly few bear interleukin-2 receptors (CD25). This unusual activation state is commonly assumed to be due to stimulation by local antigen, yet T cells activated in vitro express activation antigens in the clearly defined sequence: CD69, CD25, HLA-DR and finally VLA-1. Two possible explanations for the activation state of SF cells are: first, they comprise several subpopulations each expressing different activation antigens or, second, activation markers are up-regulated by mechanisms other than antigen stimulation. To examine these hypotheses, double- and triple-color immunofluorescence techniques were applied to four T cell populations: normal peripheral blood T cells activated in vitro, RA SF T cells, T cells from an in vivo model of migration [tuberculin purified protein derivative (PPD)-induced skin blisters] and T cells co-cultured with endothelial cells (EC). The results confirmed that in vitro activated T cells expressed activation markers in the sequence described above, with significant CD25 expression and few cells co-expressing CD69 with HLA-DR or VLA-1. In contrast, almost half the SF T cells were CD69+HLA-DR+ but CD25-; a significant minority were CD69+VLA-1+. T cells from PPD-induced skin blisters were already HLA-DR+ and VLA-1+ at 24 h, although, in vitro, PPD-activated T cells up-regulated HLA-DR and VLA-1 only after 1 week, suggesting that pre-activated T cells were preferentially recruited into the blisters. Finally, T cells were found to up-regulate CD69 and, to a lesser extent, HLA-DR after adhering to EC in vitro. In summary, the paradoxical activation state of SF T cells cannot be explained solely by single or multiple rounds of activation in situ. At least two other mechanisms, the preferential recruitment of pre-activated T cells and the induction of HLA-DR and especially CD69 by endothelial contact during migration, may also play a role.
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Affiliation(s)
- F Iannone
- Rheumatology Unit, United Medical School of Guy's Hospital, London
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