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Zhu Y, He L, Zhu Y, Yao H, Jiang J, Lu H. IRF4 affects the protective effect of regulatory T cells on the pulmonary vasculature of a bronchopulmonary dysplasia mouse model by regulating FOXP3. Mol Med 2024; 30:6. [PMID: 38195465 PMCID: PMC10777489 DOI: 10.1186/s10020-023-00770-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/12/2023] [Indexed: 01/11/2024] Open
Abstract
BACKGROUND Bronchopulmonary dysplasia (BPD) is a common chronic lung disease in preterm infants, characterised by compromised alveolar development and pulmonary vascular abnormalities. Emerging evidence suggests that regulatory T cells (Tregs) may confer protective effects on the vasculature. Knockdown of their transcription factor, interferon regulatory factor 4 (IRF4), has been shown to promote vascular endothelial hyperplasia. However, the involvement of Tregs and IRF4 in the BPD pathogenesis remains unclear. This study aimed to investigate the regulation of Tregs by IRF4 and elucidate its potential role in pulmonary vasculature development in a BPD mouse model. METHODS The BPD model was established using 85% hyperoxia exposure, with air exposure as the normal control. Lung tissues were collected after 7 or 14 days of air or hyperoxia exposure, respectively. Haematoxylin-eosin staining was performed to assess lung tissue pathology. Immunohistochemistry was used to measure platelet endothelial cell adhesion molecule-1 (PECAM-1) level, flow cytometry to quantify Treg numbers, and Western blot to assess vascular endothelial growth factor (VEGFA), angiopoietin-1 (Ang-1), forkhead box protein P3 (FOXP3), and IRF4 protein levels. We also examined the co-expression of IRF4 and FOXP3 proteins using immunoprecipitation and immunofluorescence double staining. Furthermore, we employed CRISPR/Cas9 technology to knock down the IRF4 gene and observed changes in the aforementioned indicators to validate its effect on pulmonary vasculature development in mice. RESULTS Elevated IRF4 levels in BPD model mice led to FOXP3 downregulation, reduced Treg numbers, and impaired pulmonary vascular development. Knockdown of IRF4 resulted in improved pulmonary vascular development and upregulated FOXP3 level. CONCLUSION IRF4 may affect the protective role of Tregs in the proliferation of pulmonary vascular endothelial cells and pulmonary vascular development in BPD model mice by inhibiting the FOXP3 level.
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Affiliation(s)
- Ying Zhu
- Department of Pediatrics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Langyue He
- Department of Pediatrics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yue Zhu
- Department of Pediatrics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Huici Yao
- Department of Pediatrics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jianfeng Jiang
- Department of Pediatrics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Hongyan Lu
- Department of Pediatrics, Affiliated Hospital of Jiangsu University, Zhenjiang, China.
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Zhang Y, Ma J, Bao X, Hu M, Wei X. The role of retinoic acid receptor-related orphan receptors in skeletal diseases. Front Endocrinol (Lausanne) 2023; 14:1302736. [PMID: 38027103 PMCID: PMC10664752 DOI: 10.3389/fendo.2023.1302736] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Bone homeostasis, depending on the balance between bone formation and bone resorption, is responsible for maintaining the proper structure and function of the skeletal system. As an important group of transcription factors, retinoic acid receptor-related orphan receptors (RORs) have been reported to play important roles in bone homeostasis by regulating the transcription of target genes in skeletal cells. On the other hand, the dysregulation of RORs often leads to various skeletal diseases such as osteoporosis, rheumatoid arthritis (RA), and osteoarthritis (OA). Herein, we summarized the roles and mechanisms of RORs in skeletal diseases, aiming to provide evidence for potential therapeutic strategies.
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Affiliation(s)
- Yifan Zhang
- Department of Orthodontics, Hospital of Stomatology Jilin University, Changchun, Jilin, China
| | - Jun Ma
- Department of Oral Anatomy and Physiology, Hospital of Stomatology Jilin University, Changchun, Jilin, China
| | - Xingfu Bao
- Department of Orthodontics, Hospital of Stomatology Jilin University, Changchun, Jilin, China
| | - Min Hu
- Department of Orthodontics, Hospital of Stomatology Jilin University, Changchun, Jilin, China
| | - Xiaoxi Wei
- Department of Orthodontics, Hospital of Stomatology Jilin University, Changchun, Jilin, China
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Xing J, Man C, Liu Y, Zhang Z, Peng H. Factors impacting the benefits and pathogenicity of Th17 cells in the tumor microenvironment. Front Immunol 2023; 14:1224269. [PMID: 37680632 PMCID: PMC10481871 DOI: 10.3389/fimmu.2023.1224269] [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: 05/17/2023] [Accepted: 08/07/2023] [Indexed: 09/09/2023] Open
Abstract
Tumor development is closely associated with a complex tumor microenvironment, which is composed of tumor cells, blood vessels, tumor stromal cells, infiltrating immune cells, and associated effector molecules. T helper type 17 (Th17) cells, which are a subset of CD4+ T cells and are renowned for their ability to combat bacterial and fungal infections and mediate inflammatory responses, exhibit context-dependent effector functions. Within the tumor microenvironment, different molecular signals regulate the proliferation, differentiation, metabolic reprogramming, and phenotypic conversion of Th17 cells. Consequently, Th17 cells exert dual effects on tumor progression and can promote or inhibit tumor growth. This review aimed to investigate the impact of various alterations in the tumor microenvironment on the antitumor and protumor effects of Th17 cells to provide valuable clues for the exploration of additional tumor immunotherapy strategies.
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Affiliation(s)
- Jie Xing
- Department of Laboratory Medicine, The Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Changfeng Man
- Department of Oncology, The Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Yingzhao Liu
- Department of Endocrinology, The Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Zhengdong Zhang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Huiyong Peng
- Department of Laboratory Medicine, The Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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Jiang P, Zheng C, Xiang Y, Malik S, Su D, Xu G, Zhang M. The involvement of TH17 cells in the pathogenesis of IBD. Cytokine Growth Factor Rev 2023; 69:28-42. [PMID: 35871978 DOI: 10.1016/j.cytogfr.2022.07.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/14/2022] [Accepted: 07/15/2022] [Indexed: 02/07/2023]
Abstract
The pathogenesis of inflammatory bowel disease (IBD) is still unclear. Immune dysfunction may play a key role in the pathogenesis of IBD, in which the role of CD4+ T helper (Th) cells is particularly important. Th17 cells are a major component of CD4+ T cells, and their differentiation is regulated by a variety of extracellular signals, transcription factors, RNA, and posttranslational modifications. Th17 cells specifically produce IL-17 and play an important role in the protection of mucous membranes and epithelial tissues against infection by extracellular microbes. However, when immune regulation is dysfunctional, Th17 cells abnormally proliferate and produce large amounts of proinflammatory cytokines that can recruit other inflammatory cells, which together induce abnormal immune responses and result in the development of many autoimmune diseases. In recent years, studies have confirmed that Th17 cells play an important role in the pathogenesis of IBD, which makes it a possible target for IBD therapy. This article reviews the recent progress of Th17 cells involved in the pathogenesis of IBD and its targeted therapy.
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Affiliation(s)
- Ping Jiang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China
| | - Chang Zheng
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China
| | - Ying Xiang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China
| | - Sara Malik
- Northwestern University Feinberg School of Medicine, Chicago 60611, IL, USA
| | - Dan Su
- FUJIFILM Diosynth Biotechnologies, Watertown 02472, MA, USA
| | - Guifang Xu
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China.
| | - Mingming Zhang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China; Department of Gastroenterology and Hepatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai 200001, China.
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Jahangir M, Kahrizi MS, Natami M, Moaref Pour R, Ghoreishizadeh S, Hemmatzadeh M, Mohammadi H, Shomali N, Sandoghchian Shotorbani S. MicroRNA-155 acts as a potential prognostic and diagnostic factor in patients with ankylosing spondylitis by modulating SOCS3. Mol Biol Rep 2023; 50:553-563. [PMID: 36350418 DOI: 10.1007/s11033-022-08033-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 10/14/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND Ankylosing spondylitis (AS) is a progressive inflammatory disease. Our primary objective was to explore the role of miR-155 and its targeted factors in AS pathogenesis. METHODS AND RESULTS PBMCs were isolated from 30 AS patients and 30 healthy individuals using the Ficoll-hypaque isolation approach. The expression of miR-155 and its associated targets, including Suppressor Of Cytokine Signaling 3 (SOCS3), STAT3, and IL-21, were determined using qT-qPCR. Then, PBMCs were cultured, and the effect of miR-155, SOCS3 siRNA (to suppress its expression), pEFSOCS3 (enforced expression), and their combination were investigated by qRT-PCR and western blotting. We also treated the cultured PBMCs with Brefeldin A, a potent inhibitor of cytokine secretion, to determine its effect on IL-21 expression and secretion. In addition, the association between miR-155 and patients' clinicopathological features was examined. The results showed that miR-155, IL-21, and STAT3 were increased in patients with AS, while SOCS3 had decreasing expression trend. It was also determined that miR-155 alleviates SOCS3 expression and increases IL-21 and STAT3 expression; it had a prominent effect when combined with SOCS3 siRNA. Besides, we showed that simultaneous transfection of miR-155 and pEFSOCS3 had no significant effect on IL-21 and STAT3 expression, revealing that miR-155 could alleviate the enforced expression of SOCS3. It was also proven that Brefledine A led to IL-21 up-regulation or accumulation while relieving its secretion. Also, a significant correlation between miR-155 and pathological features of AS patients was found. CONCLUSION miR-155 acts as a potential prognostic and diagnostic biomarker. Its up-regulation leads to the down-regulation of SOCS3 and increased expression of IL-21 and STAT3 as characteristic of TH-17 lymphocytes, leading to worsening inflammatory conditions in patients with AS.
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Affiliation(s)
| | | | - Mohammad Natami
- Department of Urology, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Raziyeh Moaref Pour
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Maryam Hemmatzadeh
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamed Mohammadi
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
- Department of Immunology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran
| | - Navid Shomali
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Siamak Sandoghchian Shotorbani
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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The Pathogenic Aspects of Human Parvovirus B19 NS1 Protein in Chronic and Inflammatory Diseases. Interdiscip Perspect Infect Dis 2022; 2022:1639990. [PMID: 35707129 PMCID: PMC9192293 DOI: 10.1155/2022/1639990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 05/18/2022] [Indexed: 12/01/2022] Open
Abstract
Background The nonstructural protein (NS1) of human parvovirus B19 (hPVB19) is considered to be a double-edged sword in its pathogenesis. NS1 protein promotes cell death by apoptosis in erythroid-lineage cells and is also implicated in triggering and the progression of various inflammation and autoimmune disorders. Objectives We investigated the possible role of hPVB19 NS1 in the modulation of proinflammatory cytokines in nonpermissive HEK-293T cells. Methods A plasmid containing the fully sequenced NS1 gene (pCMV6-AC-GFP-NS1) was transfected into HEK-293T cells. Transfection efficiency was assessed by fluorescent microscopy over time. Mock (pCMV6-AC-GFP) transfected cells were used as controls. The percentage of apoptotic cells was measured by flow cytometry at 24, 48, and 72 h posttransfection. Interleukin 6 (IL-6) mRNA, as a pleiotropic cytokine, was measured by real-time PCR. Furthermore, cellular supernatants were collected to determine the type and quantity of cytokines produced by mock- and NS1-transfected cells using flow cytometry. Results Fold change in the expression level of IL-6 mRNA in transfected cells after 72 hr of incubation was found to be 3.01 when compared with mock-transfected cells; however, cell apoptosis did not happen over time. Also, the concentration of cytokines such as IL-2, IL-6, IL-9, IL-17A, IL-21, IL-22, interferon (IFN)-γ, and tumor necrosis factor α (TNF-α) increased in NS1-transfected cells. Conclusions Overall, our results indicated that proinflammatory cytokine levels had increased following the expression of hPVB19 NS1 in HEK-293T cells, consistent with a role for NS1 expression facilitating the upregulation of inflammatory reactions. Therefore, hPVB19 NS1 function may play a role in the progression of some chronic and inflammatory diseases.
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Lüscher-Dias T, Siqueira Dalmolin RJ, de Paiva Amaral P, Alves TL, Schuch V, Franco GR, Nakaya HI. The evolution of knowledge on genes associated with human diseases. iScience 2022; 25:103610. [PMID: 35005554 PMCID: PMC8719018 DOI: 10.1016/j.isci.2021.103610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 11/05/2021] [Accepted: 12/08/2021] [Indexed: 12/15/2022] Open
Abstract
Thousands of biomedical scientific articles, including those describing genes associated with human diseases, are published every week. Computational methods such as text mining and machine learning algorithms are now able to automatically detect these associations. In this study, we used a cognitive computing text-mining application to construct a knowledge network comprising 3,723 genes and 99 diseases. We then tracked the yearly changes on these networks to analyze how our knowledge has evolved in the past 30 years. Our systems approach helped to unravel the molecular bases of diseases and detect shared mechanisms between clinically distinct diseases. It also revealed that multi-purpose therapeutic drugs target genes that are commonly associated with several psychiatric, inflammatory, or infectious disorders. By navigating this knowledge tsunami, we were able to extract relevant biological information and insights about human diseases.
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Affiliation(s)
- Thomaz Lüscher-Dias
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Rodrigo Juliani Siqueira Dalmolin
- Bioinformatics Multidisciplinary Environment—BioME, IMD, Federal University of Rio Grande do Norte, Natal, RN, Brazil
- Department of Biochemistry, CB, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | | | - Tiago Lubiana Alves
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Viviane Schuch
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Glória Regina Franco
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Helder I. Nakaya
- Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
- Scientific Platform Pasteur-University of São Paulo, São Paulo, Brazil
- Hospital Israelita Albert Einstein, São Paulo, Brazil
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Barac IS, Iancu M, Văcăraș V, Cozma A, Negrean V, Sâmpelean D, Mureșanu DF, Procopciuc LM. Potential Contribution of IL-27 and IL-23 Gene Polymorphisms to Multiple Sclerosis Susceptibility: An Association Analysis at Genotype and Haplotype Level. J Clin Med 2021; 11:jcm11010037. [PMID: 35011777 PMCID: PMC8745323 DOI: 10.3390/jcm11010037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/17/2021] [Accepted: 12/18/2021] [Indexed: 11/30/2022] Open
Abstract
(1) Background: interleukin 23 (IL-23) and interleukin 27 (IL-27) modulate the activity of T helper 17 cells (Th17) with critical roles in autoimmune diseases and multiple sclerosis (MS). The genes responsible for cytokine generation are highly influenced by the presence of single nucleotide polymorphisms (SNP) in main regions such as regulatory sequences or in promoter regions, contributing to disease susceptibility and evolution. The present study analyzed the associations of IL-23 and IL-27 SNPs with susceptibility to multiple sclerosis. (2) Methods: We performed a case-control study including 252 subjects: 157 patients diagnosed with MS and 95 controls. We used polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) to determine the genotypes for IL-27 T4730C (rs 181206), IL-27 A964G (rs 153109), and IL-23 receptor gene (IL-23R) G1142A (rs 11209026). (3) Results: The IL27-T4730C gene polymorphism was significantly associated with an increased odds of MS under the dominant genetic model (TC + CC variant genotypes, adjusted odds ratio OR = 4.06, 95% CI: 2.14–7.83, p-value = 0.000007, Q-value = 0.000063). Individuals carrying the IL-27 A924G variant (AG + GG) genotype presented higher odds of MS compared to non-carriers under the dominant model (adjusted OR = 1.93, 95% CI: 1.05–3.51, p-value = 0.0324, Q-value = 0.05832) and the allelic genetic model (unadjusted p-value = 0.015, OR = 1.58, 95% CI: 1.09–2.28), while IL-23-R381Q SNP conferred a decreased odds of MS under a codominant model of inheritance (adjusted OR = 0.26, 95% CI: 0.08–0.92, p-value = 0.0276, Q-value = 0.058) and an allelic model (unadjusted p-value = 0.008, OR = 0.23, 95% CI: 0.07–0.75). In an additive model with adjustment for age group (≤40 years vs. >40 years), sex and smoking, patients carrying the G-C (A964G, T4730C) haplotype had a 3.18 increased risk (95% CI: 1.74–5.81, p < 0.001) to develop multiple sclerosis. (4) Conclusions: The results of the current study showed a significant relationship of IL-27-A964G and IL-27-T4730C polymorphisms with increased risk of MS, and also the protective role of the IL-23-R381Q polymorphism. Moreover, the haplotype-based analysis proposed the mutant G-C (A924G, T4730C) as a significant risk haplotype for the development of MS.
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Affiliation(s)
- Ioana S. Barac
- Department of Clinical Neurosciences, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, 400000 Cluj-Napoca, Romania; (I.S.B.); (D.F.M.)
| | - Mihaela Iancu
- Department of Medical Informatics and Biostatistics, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, 400012 Cluj-Napoca, Romania
- Correspondence: (M.I.); (V.V.); Tel.: +40-0740-130-888 (M.I.); +40-0728-730-373 (V.V.)
| | - Vitalie Văcăraș
- Department of Clinical Neurosciences, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, 400000 Cluj-Napoca, Romania; (I.S.B.); (D.F.M.)
- Correspondence: (M.I.); (V.V.); Tel.: +40-0740-130-888 (M.I.); +40-0728-730-373 (V.V.)
| | - Angela Cozma
- Department of Internal Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, 400000 Cluj-Napoca, Romania; (A.C.); (V.N.); (D.S.)
| | - Vasile Negrean
- Department of Internal Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, 400000 Cluj-Napoca, Romania; (A.C.); (V.N.); (D.S.)
| | - Dorel Sâmpelean
- Department of Internal Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, 400000 Cluj-Napoca, Romania; (A.C.); (V.N.); (D.S.)
| | - Dafin F. Mureșanu
- Department of Clinical Neurosciences, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, 400000 Cluj-Napoca, Romania; (I.S.B.); (D.F.M.)
| | - Lucia M. Procopciuc
- Department of Biochemistry, “Iuliu Hațieganu” University of Medicine and Pharmacy Cluj-Napoca, 400000 Cluj-Napoca, Romania;
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Decreased Production of TNF-α and IL-6 Inflammatory Cytokines in Non-Pregnant Idiopathic RPL Women Immunomodulatory Effect of Sildenafil Citrate on the Cellular Response of Idiopathic RPL Women. J Clin Med 2021; 10:jcm10143115. [PMID: 34300281 PMCID: PMC8303721 DOI: 10.3390/jcm10143115] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/07/2021] [Accepted: 07/13/2021] [Indexed: 02/06/2023] Open
Abstract
Sildenafil citrate (SC), a PDE5 inhibitor, a drug for erectile dysfunction (ED) and pulmonary hypertension (PAH), was found to exert a positive effect on pregnancy outcomes when administered intravaginally before conception. In our previous studies, sildenafil increased endometrial thickness and significantly decreased peripheral blood NK cell activity after the intravaginal administration in women with recurrent pregnancy loss (RPL). No data are available to confirm the effect of sildenafil on maternal T cell populations involved in shaping fetal-maternal tolerance and NK cell activity. Thus, the present study aimed to establish if SC influences NKT cells or the axis of Th17/Treg cells and Th1/Th2 cytokine production. Materials and methods: Twenty-one healthy fertile women and twenty-two nonpregnant women with idiopathic RPL were studied. The ELISA method was used to evaluate the production of cytokines, including IL-2, IL-12p40, IL-4, IL-10, IL-6, IL-17, IL-21, TGF-β, TNF-α, and IFN-γ in PBMC culture supernatants before and after supplementation with the physiological concentration of SC. The percentages of NKT (CD56+CD3+CD44+CD161+), Treg (CD4+CD25+FOXP3+) and Th17 (CD4+CD25+IL-17A+) cells were determined with flow cytometry method. Results: Unexpectedly, we found that the PBMCs of patients with RPL produced a significantly lower level of inflammatory cytokines (TNF-α and IL-6) and a higher level of anti-inflammatory cytokines (TGF-β and IL-10). SC significantly decreased IL-6, IL-12 and increased TGF-β cytokine concentration in fertile women. In the case of RPL patients’ PBMCs, SC improved the production of TNF-α and IL-10. Conclusions: Lower concentration of proinflammatory cytokines in idiopathic RPL women compared to fertile women might suggest the exhaustion of the immune system. The emphasized production of IL-10 by SC partially explains the previously observed downregulation of NK cell activity in RPL patients. The immunomodulatory effect of the drug might be utilized in anti-inflammatory therapies and help achieve positive pregnancy outcomes in women with reproductive failure due to a Th1/Th2 imbalance.
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Ahmed LA, Mohamed AF, Abd El-Haleim EA, El-Tanbouly DM. Boosting Akt Pathway by Rupatadine Modulates Th17/Tregs Balance for Attenuation of Isoproterenol-Induced Heart Failure in Rats. Front Pharmacol 2021; 12:651150. [PMID: 33995066 PMCID: PMC8121023 DOI: 10.3389/fphar.2021.651150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 03/11/2021] [Indexed: 01/11/2023] Open
Abstract
Disruption of Th17/Tregs homeostasis plays a crucial role in governing the immune response during myocardial fibrosis and its progression to heart failure. The present study aimed to assess for the first time the possible protection afforded by rupatadine against isoproterenol-induced heart failure in rats. It also explored the role of PI3k/Akt as a possible mechanistic pathway, through which rupatadine could modulate Th17/Tregs balance to display its effect. Isoproterenol (85 and 170 mg/kg/day) was injected subcutaneously for 2 successive days, respectively and rupatadine (4 mg/kg/day) was then given orally for 14 days with or without wortmannin (PI3K/Akt inhibitor). Rupatadine succeeded to completely ameliorate isoproterenol-induced cardiac dysfunction as demonstrated by improvements of electrocardiographic and echocardiographic measurements. Moreover, rupatadine prevented the marked elevation of PAF and oxidative stress in addition to Th17 promoting cytokines (IL-6, IL-23, and TGF-β). Accordingly, rupatadine prevented Th17 stimulation or expansion as indicated by increased Foxp3/RORγt ratio and decreased production of its pro-inflammatory cytokine (IL-17). Rupatadine treatment mitigated isoproterenol-induced activation of STAT-3 signaling and the imbalance in p-Akt/total Akt ratio affording marked decrease in atrogin-1 and apoptotic biomarkers. Finally, this therapy was effective in averting cardiac troponin loss and reverting the histological alterations as assessed by myocardial fibrosis and hypertrophy grading. Contrariwise, co-administration of wortmannin mostly attenuated the protective effects of rupatadine affording more or less similar results to that of isoproterenol-untreated rats. In conclusion, rupatadine could be an effective therapy against the development of isoproterenol-induced heart failure where PI3K/Akt pathway seems to play a crucial role in its protective effect.
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Affiliation(s)
- Lamiaa A Ahmed
- Department of Pharmacology & Toxicology, Cairo University, Cairo, Egypt
| | - Ahmed F Mohamed
- Department of Pharmacology & Toxicology, Cairo University, Cairo, Egypt
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Abstract
In a recent study we reported increased expression of IL-17A in the lung of patients with lung adenocarcinoma. Local blockade of IL-17A in the lung, in a model of lung cancer revealed enhanced anti-tumor immunity characterized by increased IFNγ, a diminished T-regulatory cell number and reduced tumor growth.
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Affiliation(s)
- Sarah Reppert
- Laboratories of Cellular and Molecular Lung Immunology; Institute of Molecular Pneumology; Friedrich-Alexander-Universität; Erlangen-Nürnberg, Germany
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12
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Aghbash PS, Hemmat N, Nahand JS, Shamekh A, Memar MY, Babaei A, Baghi HB. The role of Th17 cells in viral infections. Int Immunopharmacol 2021; 91:107331. [PMID: 33418239 DOI: 10.1016/j.intimp.2020.107331] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 12/19/2020] [Accepted: 12/20/2020] [Indexed: 02/07/2023]
Abstract
The present review provides an overview of recent advances regarding the function of Th17 cells and their produced cytokines in the progression of viral diseases. Viral infections alone do not lead to virus-induced malignancies, as both genetic and host safety factors are also involved in the occurrence of malignancies. Acquired immune responses, through the differentiation of Th17 cells, form the novel components of the Th17 cell pathway when reacting with viral infections all the way from the beginning to its final stages. As a result, instead of inducing the right immune responses, these events lead to the suppression of the immune system. In fact, the responses from Th17 cells during persistent viral infections causes chronic inflammation through the production of IL-17 and other cytokines which provide a favorable environment for tumor growth and its development. Additionally, during the past decade, these cells have been understood to be involved in tumor progression and metastasis. However, further research is required to understand Th17 cells' immune mechanisms in the vast variety of viral diseases. This review aims to determine the roles and effects of the immune system, especially Th17 cells, in the progression of viral diseases; which can be highly beneficial for the diagnosis and treatment of these infections.
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Affiliation(s)
- Parisa Shiri Aghbash
- Immunology Research Center, Tabriz University of Medical Sciences, ZIP Code 15731 Tabriz, Iran; Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, ZIP Code 15731 Tabriz, Iran
| | - Nima Hemmat
- Immunology Research Center, Tabriz University of Medical Sciences, ZIP Code 15731 Tabriz, Iran; Drug Applied Research Centre, Tabriz University of Medical Sciences, ZIP Code 15731 Tabriz, Iran
| | - Javid Sadri Nahand
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, ZIP Code 14155 Tehran, Iran; Student Research Committee, Iran University of Medical Sciences, ZIP Code 14155 Tehran, Iran
| | - Ali Shamekh
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, ZIP Code 15731 Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, ZIP Code 15731 Tabriz, Iran
| | - Mohammad Yousef Memar
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, ZIP Code 15731 Tabriz, Iran
| | - Abouzar Babaei
- Department of Virology, Faculty of Medicine, Tarbiat Modares University, ZIP Code 14155 Tehran, Iran
| | - Hossein Bannazadeh Baghi
- Immunology Research Center, Tabriz University of Medical Sciences, ZIP Code 15731 Tabriz, Iran; Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, ZIP Code 15731 Tabriz, Iran; Department of Virology, Faculty of Medicine, Tabriz University of Medical Sciences, ZIP Code 15731 Tabriz, Iran.
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13
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Lu D, Lu J, Ji X, Ji Y, Zhang Z, Peng H, Sun F, Zhang C. IL‑27 suppresses airway inflammation, hyperresponsiveness and remodeling via the STAT1 and STAT3 pathways in mice with allergic asthma. Int J Mol Med 2020; 46:641-652. [PMID: 32626920 PMCID: PMC7307842 DOI: 10.3892/ijmm.2020.4622] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/07/2020] [Indexed: 01/07/2023] Open
Abstract
Type 2 cytokine-associated immunity may be involved in the pathogenesis of allergic asthma. Although interleukin 27 (IL-27) has been reported as an initiator and suppressor of T-helper 1 (Th1) and T-helper 2 (Th2) responses, respectively, its effects on the development of asthma remain unclear. In the present study, mice were induced and challenged with ovalbumin and received subsequent intranasal administration of IL-27. Total and differential cell counts were determined from Wright-Giemsa-stained cytospins, whereas the cytokine levels were detected using ELISA. In addition, the expression levels of signal transducer and activator of transcription (STAT) 1, STAT3, GATA-binding protein-3 (GATA3) and T-bet (T-box transcription factor) were analyzed in T cells by western blot analysis. Their corresponding mRNA expression levels were determined by quantitative PCR. Airway remodeling was assessed by conventional pathological techniques. The results indicated that intranasal administration of IL-27 ameliorated airway inflammation and hyperresponsiveness in an acute model of asthma. Furthermore, IL-27 prevented airway remodeling in a chronic model of asthma. Following administration of IL-27, the mRNA expression levels of STAT1 and T-bet were upregulated, while those of GATA3 were downregulated. Moreover, the phosphorylation levels of STAT1 and STAT3 were increased. Taken together, these findings demonstrated that intranasal administration of IL-27 ameliorated Th2-related allergic lung inflammation and remodeling in mouse models of asthma by repairing both the STAT1 and STAT3 pathways.
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Affiliation(s)
- Degan Lu
- Department of Respiratory Medicine and Critical Care, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Jiameng Lu
- Department of Biomedical Engineering, Jilin Medical College, Jilin 132013, P.R. China
| | - Xiaoqing Ji
- Division of Disinfectant and Supply, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Yanbo Ji
- Department of Respiratory Medicine and Critical Care, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250014, P.R. China
| | - Zewen Zhang
- Department of Magnetic Resonance, Shandong Medical Imaging Research Institute, Shandong University, Jinan, Shandong 250021, P.R. China
| | - Haiying Peng
- Faculty of Graduate, Shan Dong First Medical University, Jinan, Shandong 271016, P.R. China
| | - Fei Sun
- Faculty of Graduate, Shan Dong First Medical University, Jinan, Shandong 271016, P.R. China
| | - Caiqing Zhang
- Department of Respiratory Medicine and Critical Care, Shandong Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250014, P.R. China
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14
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Fukuda K, Miura Y, Maeda T, Hayashi S, Kuroda R. Expression profiling of genes in rheumatoid fibroblast-like synoviocytes regulated by tumor necrosis factor-like ligand 1A using cDNA microarray analysis. Biomed Rep 2019; 1:1-5. [PMID: 31258900 PMCID: PMC6566564 DOI: 10.3892/br.2019.1216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 05/09/2019] [Indexed: 02/07/2023] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease that causes chronic inflammation in synovial tissues. Hyperplasia of synovial tissue leads to the formation of pannus, which invades joint cartilage and bone resulting in joint destruction. Tumor necrosis factor-like ligand 1A (TL1A), a member of the tumor necrosis factor superfamily (TNFSF15), contributes to the pathogenesis of autoimmune diseases, including RA. In the present study, a cDNA microarray was used to search for genes whose expression in rheumatoid fibroblast-like synoviocytes (RA-FLS) were regulated by TL1A. Four individual lines of primary cultured RA-FLS were incubated either with recombinant human TL1A protein or phosphate-buffered saline, as an unstimulated control, for 12 h. Gene expression was then detected through the microarray assay. The results revealed the expression profiles of genes in RA-FLS regulated by TL1A. The present study also demonstrated the functions of those genes whose expression in RA-FLS was regulated by TL1A. Among the genes in this profile, the present study focused on the following genes: Spectrin repeat-containing nuclear envelope 1, Fc receptor-like 2, PYD (pyrin domain)-containing 1, cell division cycle 45 homolog, signal transducer and activator of transcription 5B, and interferon regulatory factor 4. These genes may affect the pathogenesis of RA, including proliferation, regulation of B cells and T cells, inflammation, and cytokine processing. The present study revealed for the first time, to the best of our knowledge, the expression profile of genes in RA-FLS regulated by TL1A. The data indicate that TL1A may regulate the gene expression of various key molecules in RA-FLS, thus affecting the pathogenesis of RA. Further investigations of the genes detected in the current profiles may provide a deeper understanding of the pathogenesis and a novel target for the treatment of RA.
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Affiliation(s)
- Koji Fukuda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Yasushi Miura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan.,Division of Orthopedic Science, Department of Rehabilitation Science, Kobe University Graduate School of Health Science, Kobe, Hyogo 654-0142, Japan
| | - Toshihisa Maeda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Shinya Hayashi
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo 650-0017, Japan
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15
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Whitley SK, Balasubramani A, Zindl CL, Sen R, Shibata Y, Crawford GE, Weathington NM, Hatton RD, Weaver CT. IL-1R signaling promotes STAT3 and NF-κB factor recruitment to distal cis-regulatory elements that regulate Il17a/f transcription. J Biol Chem 2018; 293:15790-15800. [PMID: 30093408 DOI: 10.1074/jbc.ra118.002721] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 07/26/2018] [Indexed: 01/07/2023] Open
Abstract
Interleukin (IL)-1β plays a critical role in IL-6β- and transforming growth factor β (TGFβ)-initiated Th17 differentiation and induction of Th17-mediated autoimmunity. However, the means by which IL-1 regulates various aspects of Th17 development remain poorly understood. We recently reported that IL-1β enhances STAT3 phosphorylation via NF-κB-mediated repression of SOCS3 to facilitate Il17 transcription and Th17 differentiation, identifying an effect of IL-1 signaling on proximal events of STAT3 signaling. Here, we show that IL-1β promotes STAT3 binding to key cis-elements that control IL-17 expression. Additionally, we demonstrate that the IL-1-induced NF-κB factor RelA directly regulates the Il17a/f loci in cooperation with STAT3. Our findings reveal that IL-1 impacts both proximal signaling events and downstream interactions between transcription factors and cis-regulatory elements to promote Il17a/f transcription and Th17 differentiation.
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Affiliation(s)
| | | | - Carlene L Zindl
- Pathology, University of Alabama at Birmingham, Birmingham, Alabama 35294
| | - Ranjan Sen
- the Laboratory of Cellular and Molecular Biology, NIA, National Institutes of Health, Baltimore, Maryland 21224
| | - Yoichiro Shibata
- the Institute for Genome Sciences and Policy, Duke University, Durham, North Carolina 27708, and
| | - Gregory E Crawford
- the Institute for Genome Sciences and Policy, Duke University, Durham, North Carolina 27708, and
| | - Nathaniel M Weathington
- the Department of Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15261
| | - Robin D Hatton
- Pathology, University of Alabama at Birmingham, Birmingham, Alabama 35294
| | - Casey T Weaver
- From the Departments of Microbiology and.,Pathology, University of Alabama at Birmingham, Birmingham, Alabama 35294
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16
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Mvubu NE, Pillay B, McKinnon LR, Pillay M. Mycobacterium tuberculosis strains induce strain-specific cytokine and chemokine response in pulmonary epithelial cells. Cytokine 2017; 104:53-64. [PMID: 29032986 DOI: 10.1016/j.cyto.2017.09.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 09/23/2017] [Accepted: 09/23/2017] [Indexed: 02/07/2023]
Abstract
M. tuberculosis F15/LAM4/KZN has been associated with high transmission rates of drug resistant tuberculosis in the KwaZulu-Natal province of South Africa. The current study elucidated the cytokine/chemokine responses induced by representatives of the F15/LAM4/KZN and other dominant strain families in pulmonary epithelial cells. Multiplex cytokine analyses were performed at 24, 48 and 72h post infection of the A549 pulmonary epithelial cell line with the F15/LAM4/KZN, F28, F11, Beijing, Unique and H37Rv strains at an MOI of ∼10:1. Twenty-three anti- and pro-inflammatory cytokines/chemokines were detected at all-time intervals. Significantly high concentrations of IL-6, IFN-γ, TNF-α and G-CSF at 48h, and IL-8, IFN-γ, TNF-α, G-CSF and GM-CSF at 72h, were induced by the F28 and F15/LAM4/KZN strains, respectively. Lower levels of cytokines/chemokines were induced by either the Beijing or Unique strains at all three time intervals. All strains induced up-regulation of pathogen recognition receptors (PRRs) (TLR3 and TLR5) while only the F15/LAM4/KZN, F11 and F28 strains induced significant differential expression of TLR2 compared to the Beijing, Unique and H37Rv strains. The low induction of cytokines in epithelial cells by the Beijing strain correlates with its previously reported hypervirulent properties. High concentrations of cytokines and chemokines required for early protection against M. tuberculosis infections induced by the F15/LAM4/KZN and F28 strains suggests a lower virulence of these genotypes compared to the Beijing strain. These findings demonstrate the high diversity in host cytokine/chemokine response to early infection of pulmonary epithelial cells by different strains of M. tuberculosis.
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Affiliation(s)
- Nontobeko E Mvubu
- School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville 3630, South Africa.
| | - Balakrishna Pillay
- School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville 3630, South Africa.
| | - Lyle R McKinnon
- Centre for the AIDS Program of Research in South Africa (CAPRISA), University of KwaZulu-Natal, Durban, South Africa; Department of Medical Microbiology, University of Manitoba, Winnipeg, Manitoba, Canada.
| | - Manormoney Pillay
- Medical Microbiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, 719 Umbilo Road, South Africa.
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17
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Kariminik A, Kheirkhah B. Tumor growth factor-β is an important factor for immunosuppression and tumorgenesis in Polyoma BK virus infection; a systematic review article. Cytokine 2017; 95:64-69. [PMID: 28237875 DOI: 10.1016/j.cyto.2017.02.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 02/07/2017] [Accepted: 02/12/2017] [Indexed: 02/07/2023]
Abstract
Polyoma BK virus (PBK) is a prevalent human specific virus and the cause of several malignancies in human. The main mechanisms used by PBK to induce/stimulate human cancers are yet to be clarified but it has been proposed that PBK may use several mechanisms to induce/stimulate cancers in human including attenuation of immune responses via up-regulation of immunosuppressor molecules. Transforming growth factor beta (TGF-β) is a key multifunctional factor from modulation of immunosurveillance to angiogenesis. The key roles of TGF-β in the progression of Th17 and T regulatory subsets, the most important immune cells involved in development of cancers, have been demonstrated. Thus, this review article aims to describe the mechanisms used by PBK in induction/stimulation of human cancers in TGF-β dependent manner..
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Affiliation(s)
- Ashraf Kariminik
- Department of Microbiology, Kerman Branch, Islamic Azad University, Kerman, Iran.
| | - Babak Kheirkhah
- Department of Microbiology, Kerman Branch, Islamic Azad University, Kerman, Iran
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18
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Novel benzoxazole derivatives DCPAB and HPAB attenuate Th1 cell-mediated inflammation through T-bet suppression. Sci Rep 2017; 7:42144. [PMID: 28169371 PMCID: PMC5294415 DOI: 10.1038/srep42144] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 01/03/2017] [Indexed: 12/15/2022] Open
Abstract
Interferon-γ (IFN-γ), a critical inflammatory cytokine, is primarily produced by T helper 1 (Th1) cells and accelerates the pathogenesis of inflammatory colitis. Pharmacological suppression of IFN-γ production attenuates dysregulated inflammatory responses and may be beneficial for treating inflammatory disease. In this study, we aimed to discover potent anti-inflammatory compounds that suppress IFN-γ production and found that the novel benzoxazole derivatives, 2-((3,4-dichlorophenyl) amino) benzo[d]xazol-5-ol (DCPAB) and 2-((3,4-hydroxyphenyl) amino) benzo[d]xazol-5-ol (HPAB), suppressed IFN-γ production by T cells. Treatment of CD4+ T cells with DCPAB and HPAB selectively inhibited Th1 cell development, and DCPAB more potently suppressed IFN-γ than HPAB did. Interestingly, DCPAB and HPAB significantly suppressed the expression of T-box containing protein expressed in T cells (T-bet) that activates IFN-γ gene transcription. DCPAB additionally suppressed transcriptional activity of T-bet on IFN-γ gene promoter, whereas HPAB had no effect on T-bet activity. IFN-γ suppressive activity of DCPAB and HPAB was impaired in the absence of T-bet but was retrieved by the restoration of T-bet in T-bet-deficient T cells. Furthermore, DCPAB and HPAB attenuated inflammatory colitis development that was induced by CD4+ T cells in vivo. We suggest that the novel benzoxazole derivatives, DCPAB and HPAB, may have therapeutic effects on inflammatory colitis.
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19
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Nam S, Lim JS. Essential role of interferon regulatory factor 4 (IRF4) in immune cell development. Arch Pharm Res 2016; 39:1548-1555. [DOI: 10.1007/s12272-016-0854-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 10/28/2016] [Indexed: 12/11/2022]
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20
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Therapeutic Treatment of Arthritic Mice with 15-Deoxy Δ 12,14-Prostaglandin J 2 (15d-PGJ 2) Ameliorates Disease through the Suppression of Th17 Cells and the Induction of CD4 +CD25 -FOXP3 + Cells. Mediators Inflamm 2016; 2016:9626427. [PMID: 27872515 PMCID: PMC5107840 DOI: 10.1155/2016/9626427] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 07/20/2016] [Accepted: 08/04/2016] [Indexed: 12/20/2022] Open
Abstract
The prostaglandin, 15-deoxy Δ12,14-prostaglandin J2 (15d-PGJ2), is a lipid mediator that plays an important role in the control of chronic inflammatory disease. However, the role of prostanoid in rheumatoid arthritis (RA) is not well determined. We demonstrated the therapeutic effect of 15d-PGJ2 in an experimental model of arthritis. Daily administration of 15d-PGJ2 attenuated the severity of CIA, reducing the clinical score, pain, and edema. 15d-PGJ2 treatment was associated with a marked reduction in joint levels of proinflammatory cytokines. Although the mRNA expression of ROR-γt was profoundly reduced, FOXP3 was enhanced in draining lymph node cells from 15d-PGJ2-treated arthritic mice. The specific and polyclonal CD4+ Th17 cell responses were limited during the addition of prostaglandin to cell culture. Moreover, in vitro 15d-PGJ2 increased the expression of FOXP3, GITR, and CTLA-4 in the CD4+CD25− population, suggesting the induction of Tregs on conventional T cells. Prostanoid addition to CD4+CD25− cells selectively suppressed Th17 differentiation and promoted the enhancement of FOXP3 under polarization conditions. Thus, 15d-PGJ2 ameliorated symptoms of collagen-induced arthritis by regulating Th17 differentiation, concomitant with the induction of Tregs, and, consequently, protected mice from diseases aggravation. Altogether, these results indicate that 15d-PGJ2 may represent a potential therapeutic strategy in RA.
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21
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Ji H, Biagini Myers JM, Brandt EB, Brokamp C, Ryan PH, Khurana Hershey GK. Air pollution, epigenetics, and asthma. Allergy Asthma Clin Immunol 2016; 12:51. [PMID: 27777592 PMCID: PMC5069789 DOI: 10.1186/s13223-016-0159-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 10/04/2016] [Indexed: 12/13/2022] Open
Abstract
Exposure to traffic-related air pollution (TRAP) has been implicated in asthma development, persistence, and exacerbation. This exposure is highly significant as large segments of the global population resides in zones that are most impacted by TRAP and schools are often located in high TRAP exposure areas. Recent findings shed new light on the epigenetic mechanisms by which exposure to traffic pollution may contribute to the development and persistence of asthma. In order to delineate TRAP induced effects on the epigenome, utilization of newly available innovative methods to assess and quantify traffic pollution will be needed to accurately quantify exposure. This review will summarize the most recent findings in each of these areas. Although there is considerable evidence that TRAP plays a role in asthma, heterogeneity in both the definitions of TRAP exposure and asthma outcomes has led to confusion in the field. Novel information regarding molecular characterization of asthma phenotypes, TRAP exposure assessment methods, and epigenetics are revolutionizing the field. Application of these new findings will accelerate the field and the development of new strategies for interventions to combat TRAP-induced asthma.
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Affiliation(s)
- Hong Ji
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 7037, Cincinnati, OH 45229 USA ; Pyrosequencing lab for Genomic and Epigenomic research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229 USA
| | - Jocelyn M Biagini Myers
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 7037, Cincinnati, OH 45229 USA
| | - Eric B Brandt
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 7037, Cincinnati, OH 45229 USA
| | - Cole Brokamp
- Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229 USA
| | - Patrick H Ryan
- Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229 USA
| | - Gurjit K Khurana Hershey
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave. MLC 7037, Cincinnati, OH 45229 USA
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22
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Zare-Bidaki M, Assar S, Hakimi H, Abdollahi SH, Nosratabadi R, Kennedy D, Arababadi MK. TGF-β in Toxoplasmosis: Friend or foe? Cytokine 2016; 86:29-35. [DOI: 10.1016/j.cyto.2016.07.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 06/29/2016] [Accepted: 07/01/2016] [Indexed: 12/17/2022]
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23
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Regulation of Interleukin-17 Production. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 941:139-166. [DOI: 10.1007/978-94-024-0921-5_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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24
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Oh YJ, Shin JH, Won HY, Hwang ES. Anti-proliferative Activity of T-bet. Immune Netw 2015; 15:199-205. [PMID: 26330806 PMCID: PMC4553258 DOI: 10.4110/in.2015.15.4.199] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2015] [Revised: 07/24/2015] [Accepted: 07/28/2015] [Indexed: 12/01/2022] Open
Abstract
T-bet is a critical transcription factor that regulates differentiation of Th1 cells from CD4(+) precursor cells. Since T-bet directly binds to the promoter of the IFN-γ gene and activates its transcription, T-bet deficiency impairs IFN-γ production in Th1 cells. Interestingly, T-bet-deficient Th cells also display substantially augmented the production of IL-2, a T cell growth factor. Exogenous expression of T-bet in T-bet deficient Th cells rescued the IFN-γ production and suppressed IL-2 expression. IFN-γ and IL-2 reciprocally regulate Th cell proliferation following TCR stimulation. Therefore, we examined the effect of T-bet on Th cell proliferation and found that T-bet deficiency significantly enhanced Th cell proliferation under non-skewing, Th1-skewing, and Th2-skewing conditions. By using IFN-γ-null mice to eliminate the anti-proliferative effect of IFN-γ, T-bet deficiency still enhanced Th cell proliferation under both Th1- and Th2-skewing conditions. Since the anti-proliferative activity of T-bet may be influenced by IL-2 suppression in Th cells, we examined whether T-bet modulates IL-2-independent cell proliferation in a non-T cell population. We demonstrated that T-bet expression induced by ecdysone treatment in human embryonic kidney (HEK) cells increased IFN-γ promoter activity in a dose dependent manner, and sustained T-bet expression considerably decreased cell proliferation in HEK cells. Although the molecular mechanisms underlying anti-proliferative activity of T-bet remain to be elucidated, T-bet may directly suppress cell proliferation in an IFN-γ- or an IL-2-independent manner.
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Affiliation(s)
- Yeon Ji Oh
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Korea
| | - Ji Hyun Shin
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Korea
| | - Hee Yeon Won
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Korea
| | - Eun Sook Hwang
- College of Pharmacy and Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 03760, Korea
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25
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Reppert S, Zinser E, Holzinger C, Sandrock L, Koch S, Finotto S. NFATc1 deficiency in T cells protects mice from experimental autoimmune encephalomyelitis. Eur J Immunol 2015; 45:1426-40. [PMID: 25689841 PMCID: PMC6681150 DOI: 10.1002/eji.201445150] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 01/28/2015] [Accepted: 02/12/2015] [Indexed: 12/19/2022]
Abstract
NFATc1 is a member of the nuclear factor of activated T cells (NFAT) family of transcription factors. NFAT is activated upon T-cell receptor activation followed by intracytoplasmatic calcium influx where calmodulin, a calcium sensor protein, activates the phosphatase calcineurin that dephosphorylates NFAT proteins and results in NFAT nuclear import. Here, we show the analysis of conditional NFATc1-deficient mice bearing a deletion of NFATc1 in CD4(+) and CD8(+) T cells. NFATc1-deficient CD4(+) T cells polarized under Th17 conditions express reduced levels of the Th17-associated transcription factor RORγT (where ROR is RAR-related orphan receptor) as well as the Th17-associated cytokines IL-17A, IL-17F, IL-21, and IL-10. In the murine model of experimental EAE, we found a strong reduction of the disease outcome in conditional NFATc1-deficient mice, as compared with control littermates. This was accompanied by a diminished inflammation in the brain and spinal cord and reduced IL-17A and IFN-γ expression by antigen-specific spleen, spinal cord, and brain cells. Altogether, these results reveal an important role of NFATc1 in inducing Th17-cell responses and IFN-γ, both being relevant for the EAE development.
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MESH Headings
- Animals
- Cell Differentiation/immunology
- Cytokines/metabolism
- Down-Regulation
- Encephalomyelitis, Autoimmune, Experimental/etiology
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/prevention & control
- Interferon-gamma/biosynthesis
- Interferon-gamma/genetics
- Interleukin-10/metabolism
- Interleukin-17/genetics
- Interleukin-17/metabolism
- Interleukins/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- NFATC Transcription Factors/deficiency
- NFATC Transcription Factors/genetics
- NFATC Transcription Factors/immunology
- Nuclear Receptor Subfamily 1, Group F, Member 3/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, Interleukin/metabolism
- Spleen/immunology
- Spleen/pathology
- T-Lymphocytes/immunology
- T-Lymphocytes/pathology
- Th1 Cells/immunology
- Th1 Cells/pathology
- Th17 Cells/immunology
- Th17 Cells/pathology
- Transforming Growth Factor beta1/metabolism
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Affiliation(s)
- Sarah Reppert
- Department of Molecular PneumologyFriedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergUniversitätsklinikum ErlangenErlangenGermany
| | - Elisabeth Zinser
- Department of Immune ModulationFriedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergUniversitätsklinikum ErlangenErlangenGermany
| | - Corinna Holzinger
- Department of Molecular PneumologyFriedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergUniversitätsklinikum ErlangenErlangenGermany
| | - Lena Sandrock
- Department of Immune ModulationFriedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergUniversitätsklinikum ErlangenErlangenGermany
| | - Sonja Koch
- Department of Molecular PneumologyFriedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergUniversitätsklinikum ErlangenErlangenGermany
| | - Susetta Finotto
- Department of Molecular PneumologyFriedrich‐Alexander‐Universität (FAU) Erlangen‐NürnbergUniversitätsklinikum ErlangenErlangenGermany
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26
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Ravichandran J, Jackson RJ, Trivedi S, Ranasinghe C. IL-17A expression in HIV-specific CD8 T cells is regulated by IL-4/IL-13 following HIV-1 prime-boost immunization. J Interferon Cytokine Res 2015; 35:176-85. [PMID: 25493691 PMCID: PMC4350450 DOI: 10.1089/jir.2014.0078] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 08/22/2014] [Indexed: 01/25/2023] Open
Abstract
Although Th1 and Th2 cytokines can inhibit interleukin (IL)-17-secreting T cells, how these cells are regulated under different infectious conditions is still debated. Our previous studies have shown that vaccination of IL-4 and IL-13 gene knockout (KO) mice can induce high-avidity HIV K(d)Gag197-205-specific CD8 T cells with better protective efficacy. In this study, when IL-13, IL-4, STAT6 KO, and wild-type BALB/c mice were prime-boost immunized with an HIV poxviral modality, elevated numbers of IL-17A(+) splenic K(d)Gag197-205-specific CD8 T cells were observed in all the KO mice compared with the wt BALB/c control. Similarly, when wt BALB/c mice were immunized with IL-13Rα2-adjuvanted HIV vaccines (that transiently inhibited IL-13 activity and induced high-avidity CD8 T cells with enhanced protective efficacy), elevated IL-17A(+) K(d)Gag197-205-specific CD8 T cells were detected both in the lung and the spleen. However, at the transcriptional level, elevated TGF-β, IL-6, ROR-γt, and IL-17A mRNA copy numbers were mainly detected in IL-4 KO, but not the IL-13 KO mice. These data suggested that TGF-β, IL-6, ROR-γt, but not IL-23a, played a role in IL-17A regulation in K(d)Gag197-205-specific CD8 T cells. Collectively, our findings suggest that IL-4 and IL-13 differentially regulate the expression of IL-17A in K(d)Gag197-205-specific CD8 T cells at the transcriptional and translational level, respectively, implicating IL-17A as an indirect modulator of CD8 T cell avidity and protective immunity.
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Affiliation(s)
- Jayashree Ravichandran
- Molecular Mucosal Vaccine Immunology Group, Department of Immunology, The John Curtin School of Medical Research, The Australian National University , Canberra, Australia
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27
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Kim DH, Ihn HJ, Moon C, Oh SS, Park S, Kim S, Lee KW, Kim KD. Ciglitazone, a peroxisome proliferator-activated receptor gamma ligand, inhibits proliferation and differentiation of th17 cells. Biomol Ther (Seoul) 2015; 23:71-6. [PMID: 25593646 PMCID: PMC4286752 DOI: 10.4062/biomolther.2014.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 09/03/2014] [Accepted: 10/07/2014] [Indexed: 11/10/2022] Open
Abstract
Peroxisome proliferator-activated receptor gamma (PPARγ) was identified as a cell-intrinsic regulator of Th17 cell differentiation. Th17 cells have been associated with several autoimmune diseases, including experimental autoimmune encephalomyelitis (EAE), inflammatory bowel disease (IBD), and collagen-induced arthritis. In this study, we confirmed PPARγ-mediated inhibition of Th17 cell differentiation and cytokine production at an early stage. Treatment with ciglitazone, a PPARγ ligand, reduced both IL-1β-mediated enhancement of Th17 differentiation and activation of Th17 cells after polarization. For Th17 cell differentiation, we found that ciglitazone-treated cells had a relatively low proliferative activity and produced a lower amount of cytokines, regardless of the presence of IL-1β. The inhibitory activity of ciglitazone might be due to decrease of CCNB1 expression, which regulates the cell cycle in T cells. Hence, we postulate that a pharmaceutical PPARγ activator might be a potent candidate for treatment of Th17-mediated autoimmune disease patients.
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Affiliation(s)
- Dong Hyeok Kim
- Division of Applied Life Science, Gyeongsang National University, Jinju 660-701, Republic of Korea; ; PMBBRC, Gyeongsang National University, Jinju 660-701, Republic of Korea
| | - Hyun-Ju Ihn
- Division of Applied Life Science, Gyeongsang National University, Jinju 660-701, Republic of Korea
| | - Chaerin Moon
- Division of Applied Life Science, Gyeongsang National University, Jinju 660-701, Republic of Korea
| | - Sang-Seok Oh
- Division of Applied Life Science, Gyeongsang National University, Jinju 660-701, Republic of Korea; ; BK21 Plus, Gyeongsang National University, Jinju 660-701, Republic of Korea
| | - Soojong Park
- Division of Applied Life Science, Gyeongsang National University, Jinju 660-701, Republic of Korea; ; BK21 Plus, Gyeongsang National University, Jinju 660-701, Republic of Korea
| | - Suk Kim
- College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, Republic of Korea
| | - Keun Woo Lee
- Division of Applied Life Science, Gyeongsang National University, Jinju 660-701, Republic of Korea; ; BK21 Plus, Gyeongsang National University, Jinju 660-701, Republic of Korea; ; PMBBRC, Gyeongsang National University, Jinju 660-701, Republic of Korea
| | - Kwang Dong Kim
- Division of Applied Life Science, Gyeongsang National University, Jinju 660-701, Republic of Korea; ; PMBBRC, Gyeongsang National University, Jinju 660-701, Republic of Korea
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28
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Huang YH, Tsai K, Ma C, Vallance BA, Priatel JJ, Tan R. SLAM-SAP signaling promotes differentiation of IL-17-producing T cells and progression of experimental autoimmune encephalomyelitis. THE JOURNAL OF IMMUNOLOGY 2014; 193:5841-53. [PMID: 25362182 DOI: 10.4049/jimmunol.1301435] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
IL-17 plays critical roles in host defenses, combating bacterial and fungal infections, as well as the pathogenesis of autoimmune diseases such as experimental autoimmune encephalomyelitis (EAE). The signaling adaptor SAP is essential for normal immune homeostasis and mutations within SH2D1A, the locus encoding this protein, result in serious and sometimes fatal syndromes, including X-linked lymphoproliferative disease and severe cases of common variable immunodeficiency. However, the precise cellular basis of how SAP deficiency contributes to immune dysfunction remains incompletely understood. In this study, we found that CD4 and CD8 T cells lacking SAP had a diminished capacity to differentiate into IL-17-producing Th17 and T cytotoxic (Tc17) cells relative to wild-type lymphocytes. The use of costimulating SLAM Abs was found to augment the differentiation of IL-17-secreting effectors in wild-type but not Sh2d1a(-/-) splenic T cells under IL-17-polarizing conditions. In addition, SAP's regulation of IL-17-secreting T cells was shown to be a T cell-intrinsic role, as purified naive Sh2d1a(-/-) CD4 and CD8 T cells were inherently defective at converting into Th17 and Tc17 cells in vitro and in vivo. Furthermore, Sh2d1a(-/-) mice were protected from EAE and exhibited greatly decreased numbers of CNS-infiltrating Th17 and Tc17 effector T cells and reduced disease severity. Collectively, these results suggest that SLAM-SAP signaling drives the differentiation and function of Th17 and Tc17 cells in vitro and in vivo and contributes to the pathogenesis of autoimmunity in EAE.
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Affiliation(s)
- Yu-Hsuan Huang
- Child and Family Research Institute, BC Children's Hospital, Vancouver, British Columbia V5Z 4H4, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada
| | - Kevin Tsai
- Child and Family Research Institute, BC Children's Hospital, Vancouver, British Columbia V5Z 4H4, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada
| | - Caixia Ma
- Child and Family Research Institute, BC Children's Hospital, Vancouver, British Columbia V5Z 4H4, Canada; Division of Gastroenterology, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada; and
| | - Bruce A Vallance
- Child and Family Research Institute, BC Children's Hospital, Vancouver, British Columbia V5Z 4H4, Canada; Division of Gastroenterology, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada; and
| | - John J Priatel
- Child and Family Research Institute, BC Children's Hospital, Vancouver, British Columbia V5Z 4H4, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada;
| | - Rusung Tan
- Child and Family Research Institute, BC Children's Hospital, Vancouver, British Columbia V5Z 4H4, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada; Department of Pathology, Sidra Medical and Research Center, Doha, Qatar
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29
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Geng JJ, Zhang K, Chen LN, Miao JL, Yao M, Ren Y, Fu ZG, Chen ZN, Zhu P. Enhancement of CD147 on M1 macrophages induces differentiation of Th17 cells in the lung interstitial fibrosis. Biochim Biophys Acta Mol Basis Dis 2014; 1842:1770-82. [PMID: 24932516 DOI: 10.1016/j.bbadis.2014.06.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2014] [Revised: 05/09/2014] [Accepted: 06/05/2014] [Indexed: 02/02/2023]
Abstract
Lung interstitial fibrosis is a chronic lung disease, and few effective therapies are available to halt or reverse the progression of the disease. In murine and human lung fibrosis, the expression of CD147 is increased. However, the role of CD147 in lung fibrosis has not been identified, and it remains to be determined whether lung fibrosis would be improved by decreasing the expression of CD147. A murine bleomycin-induced lung interstitial fibrosis model was used in the experiments, and HAb18 mAbs and CsA were administered during the induction of lung fibrosis. In our study, we found that the HAb18 mAbs markedly reduced the collagen score and down-regulated M1 macrophages and Th17 cells. In vitro, flow cytometry analysis showed that M1 macrophages induced higher Th17 differentiation than M2 macrophages. After treatment with HAb18 mAbs or after reducing the expression of CD147 by lentivirus interference in M1 macrophages, the level of Th17 cells were significantly inhibited. In conclusion, HAb18 mAbs or CsA treatment ameliorates lung interstitial fibrosis. CD147 promoted M1 macrophage and induced the differentiation of Th17 cells in lung interstitial fibrosis, perhaps by regulating some cytokines such as IL-6, IL-1β, IL-12 and IL-23. These results indicated that CD147 may play an important role in the development of lung interstitial fibrosis.
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Affiliation(s)
- Jie-jie Geng
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China; Department of Cell Biology, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Kui Zhang
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Li-na Chen
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Jin-lin Miao
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Meng Yao
- Department of Cell Biology, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Ying Ren
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Zhi-guang Fu
- Department of Cell Biology, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Zhi-nan Chen
- Department of Cell Biology, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China.
| | - Ping Zhu
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China.
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30
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Xue Y, Yang Y, Su Z, Barnie PA, Zheng D, Zhang Y, Xu Y, Wang S, Xu H. Local delivery of T-bet shRNA reduces inflammation in collagen II-induced arthritis via downregulation of IFN-γ and IL-17. Mol Med Rep 2014; 9:899-903. [PMID: 24425064 DOI: 10.3892/mmr.2014.1893] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 01/06/2014] [Indexed: 11/06/2022] Open
Abstract
Th1 and Th17 cells are involved in the pathogenesis of rheumatoid arthritis (RA). T-bet, a Th1-specific transcription factor, appears to drive the maturation of Th1 and IFN-γ secretion. In the present study, we established the T-bet shRNA recombinant plasmid (p-T-shRNA) and explored its possible anti-inflammatory effect in a collagen-induced arthritis (CIA) model by local injection of plasmid vectors. For the initiation of CIA, DBA/1J mice were immunized with type II collagen (CII) in Freund's adjuvant and the CII-immunized mice were treated with p-T-shRNA. Levels of T-bet, IFN-γ, IL-17 and RORγt mRNA in splenocytes and synovial joints were measured by quantitative real-time PCR and T-bet expression in joint tissue was detected by immunohistochemistry staining. The intracellular IFN-γ and IL-17 were analyzed by flow cytometry (FCM). The results demonstrated that therapeutic administration on the local joints with p-T-shRNA significantly suppressed IFN-γ and IL-17 gene expression and improved the pathogenesis of arthritis in CIA mice, while administration of a plasmid expressing T-bet (pIRES-T-bet) accelerated the disease onset. Our study suggests that T-bet may be developed as a potential target for arthritis therapy.
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Affiliation(s)
- Yuan Xue
- Department of Immunology, Institute of Laboratory Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Yong Yang
- The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
| | - Zhaoliang Su
- Department of Immunology, Institute of Laboratory Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Prince Amoatt Barnie
- Department of Immunology, Institute of Laboratory Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Dong Zheng
- Department of Immunology, Institute of Laboratory Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Yun Zhang
- Department of Immunology, Institute of Laboratory Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Yan Xu
- Department of Immunology, Institute of Laboratory Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Shengjun Wang
- Department of Immunology, Institute of Laboratory Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Huaxi Xu
- Department of Immunology, Institute of Laboratory Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
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31
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Kim SH, Hong JH, Lee YC. Oleanolic acid suppresses ovalbumin-induced airway inflammation and Th2-mediated allergic asthma by modulating the transcription factors T-bet, GATA-3, RORγt and Foxp3 in asthmatic mice. Int Immunopharmacol 2013; 18:311-24. [PMID: 24374304 DOI: 10.1016/j.intimp.2013.12.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 11/19/2013] [Accepted: 12/09/2013] [Indexed: 12/13/2022]
Abstract
The natural product oleanolic acid is commonly found in a variety of medicinal plants. It is a triterpenoid compound known for its anti-inflammatory effects as well as various other pharmacological properties. The aim of the current study was to use a mouse model of allergic asthma to investigate whether oleanolic acid has anti-asthmatic effects, and if so, to determine the mechanism of these effects. Oleanolic acid suppressed eosinophil infiltration, allergic airway inflammation, and Penh, which occurred by suppressing the production of IL-5, IL-13, IL-17, and ovalbumin-specific IgE through the upregulation of T-bet and Foxp3, and the downregulation of GATA-3 and RORγt. The therapeutic effect of oleanolic acid was due to suppression of Th2 cytokines (IL-5 and IL-13), B cell-dependent production of OVA-specific IgE, and Gr-1 expression through the T-bet, GATA-3, retinoic acid-related orphan receptor γ t (RORγ t) and forkhead box p3 (Foxp3) transcription pathways. It is therefore reasonable to suggest that the anti-inflammatory and anti-asthmatic effects of oleanolic acid may be exerted through inhibition of the GATA-3 and RORγt pathways.
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Affiliation(s)
- Seung-Hyung Kim
- Institute of Traditional Medicine & Bioscience, Daejeon University, Daejeon 300-716, Republic of Korea
| | - Jung-Hee Hong
- Department of Herbology, College of Oriental Medicine, Sangji University, Wonju 220-702, Republic of Korea
| | - Young-Cheol Lee
- Department of Herbology, College of Oriental Medicine, Sangji University, Wonju 220-702, Republic of Korea.
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32
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Li L, Liu J, Delohery T, Zhang D, Arendt C, Jones C. The effects of teriflunomide on lymphocyte subpopulations in human peripheral blood mononuclear cells in vitro. J Neuroimmunol 2013; 265:82-90. [PMID: 24182769 DOI: 10.1016/j.jneuroim.2013.10.003] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 09/22/2013] [Accepted: 10/07/2013] [Indexed: 12/17/2022]
Abstract
Teriflunomide is an inhibitor of dihydro-orotate dehydrogenase (DHODH), and is hypothesized to ameliorate multiple sclerosis by reducing proliferation of stimulated lymphocytes. We investigated teriflunomide's effects on proliferation, activation, survival, and function of stimulated human peripheral blood mononuclear cell subsets in vitro. Teriflunomide had little/no impact on lymphocyte activation but exerted significant dose-dependent inhibition of T- and B-cell proliferation, which was uridine-reversible (DHODH-dependent). Viability analyses showed no teriflunomide-associated cytotoxicity. Teriflunomide significantly decreased release of several pro-inflammatory cytokines from activated monocytes in a DHODH-independent fashion. In conclusion, teriflunomide acts on multiple immune cell types and processes via DHODH-dependent and independent mechanisms.
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Affiliation(s)
- Li Li
- BioInnovation Group, Sanofi, Cambridge, MA, USA
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33
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Zhang HL, Zheng XY, Zhu J. Th1/Th2/Th17/Treg cytokines in Guillain–Barré syndrome and experimental autoimmune neuritis. Cytokine Growth Factor Rev 2013. [DOI: 10.1016/j.cytogfr.2013.05.005 10.1016/j.cytogfr.2013.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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34
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Zhang HL, Zheng XY, Zhu J. Th1/Th2/Th17/Treg cytokines in Guillain–Barré syndrome and experimental autoimmune neuritis. Cytokine Growth Factor Rev 2013; 24:443-53. [DOI: 10.1016/j.cytogfr.2013.05.005] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 05/08/2013] [Accepted: 05/21/2013] [Indexed: 12/12/2022]
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35
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Won HY, Jang EJ, Lee K, Oh S, Kim HK, Woo HA, Kang SW, Yu DY, Rhee SG, Hwang ES. Ablation of peroxiredoxin II attenuates experimental colitis by increasing FoxO1-induced Foxp3+ regulatory T cells. THE JOURNAL OF IMMUNOLOGY 2013; 191:4029-37. [PMID: 24048895 DOI: 10.4049/jimmunol.1203247] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Peroxiredoxin (Prx) II is an intracellular antioxidant molecule that eliminates hydrogen peroxide, employing a high substrate-binding affinity. PrxII deficiency increases the levels of intracellular reactive oxygen species in many types of cells, which may increase reactive oxygen species-mediated inflammation. In this study, we investigated the susceptibility of PrxII knockout (KO) mice to experimentally induced colitis and the effects of PrxII on the immune system. Wild-type mice displayed pronounced weight loss, high mortality, and colon shortening after dextran sulfate sodium administration, whereas colonic inflammation was significantly attenuated in PrxII KO mice. Although macrophages were hyperactivated in PrxII KO mice, the amount of IFN-γ and IL-17 produced by CD4(+) T cells was substantially reduced. Foxp3(+) regulatory T (Treg) cells were elevated, and Foxp3 protein expression was increased in the absence of PrxII in vitro and in vivo. Restoration of PrxII into KO cells suppressed the increased Foxp3 expression. Interestingly, endogenous PrxII was inactivated through hyperoxidation during Treg cell development. Furthermore, PrxII deficiency stabilized FoxO1 expression by reducing mouse double minute 2 homolog expression and subsequently activated FoxO1-mediated Foxp3 gene transcription. PrxII overexpression, in contrast, reduced FoxO1 and Foxp3 expression. More interestingly, adoptive transfer of naive CD4(+) T cells from PrxII KO mice into immune-deficient mice attenuated T cell-induced colitis, with a reduction in mouse double minute 2 homolog expression and an increase in FoxO1 and Foxp3 expression. These results suggest that inactivation of PrxII is important for the stability of FoxO1 protein, which subsequently mediates Foxp3(+) Treg cell development, thereby attenuating colonic inflammation.
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Affiliation(s)
- Hee Yeon Won
- College of Pharmacy and Global Top 5 Research Program, Ewha Womans University, Seoul 120-750, Korea
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36
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Karimi-Googheri M, Daneshvar H, Nosratabadi R, Zare-Bidaki M, Hassanshahi G, Ebrahim M, Arababadi MK, Kennedy D. Important roles played by TGF-β in hepatitis B infection. J Med Virol 2013; 86:102-8. [PMID: 24009084 DOI: 10.1002/jmv.23727] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2013] [Indexed: 12/14/2022]
Abstract
Hepatitis B virus (HBV) which includes, fulminant, acute, chronic, asymptomatic, and occult HBV infection is the most prevalent virus that leads to human liver diseases. Chronic, asymptomatic, and occult infection can induce further sever diseases such as hepatocellular carcinoma (HCC) and cirrhosis of the liver. The underlying mechanisms that allow progression of the prolonged forms of the infection and subsequent HCC or cirrhosis of the liver are yet to be clarified. However, many researchers have suggested that immunological and genetic parameters may play important roles in the etiology of hepatitis B. Transforming growth factor beta (TGF-β) is an important cytokine with dual regulatory functions in the immune system and in the responses against viral infections. However, the pathways and mechanisms controlling these are not fully understood. The crucial roles of TGF-β in the development of Th17 and T regulatory lymphocytes, the main cell types involved in autoimmunity and destructive immune related diseases, have been documented and this provides insights into TGF-β function during hepatitis infection and subsequent HCC and cirrhosis of the liver. Recent findings also confirm that TGF-β directly alters hepatocyte function during hepatitis B, hence, the aim of this review is to address the current data regarding the association and status of TGF-β with hepatitis B infection and its related disorders including HCC and cirrhosis of the liver.
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37
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Soluble GARP has potent antiinflammatory and immunomodulatory impact on human CD4+ T cells. Blood 2013; 122:1182-91. [DOI: 10.1182/blood-2012-12-474478] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Key Points
GARP efficiently represses proliferation of naïve and resting CD4+ T cells and is involved in the induction of adaptive regulatory T cells. In vivo, GARP prevents T cell–mediated destructive inflammation in a preclinical humanized mouse model of GVHD.
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38
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PPARγ Agonists in Adaptive Immunity: What Do Immune Disorders and Their Models Have to Tell Us? PPAR Res 2013; 2013:519724. [PMID: 23983678 PMCID: PMC3747405 DOI: 10.1155/2013/519724] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 06/17/2013] [Accepted: 06/27/2013] [Indexed: 01/25/2023] Open
Abstract
Adaptive immunity has evolved as a very powerful and highly specialized tool of host defense. Its classical protagonists are lymphocytes of the T- and B-cell lineage. Cytokines and chemokines play a key role as effector mechanisms of the adaptive immunity. Some autoimmune and inflammatory diseases are caused by disturbance of the adaptive immune system. Recent advances in understanding the pathogenesis of autoimmune diseases have led to research on new molecular and therapeutic targets. PPARγ are members of the nuclear receptor superfamily and are transcription factors involved in lipid metabolism as well as innate and adaptive immunity. PPARγ is activated by synthetic and endogenous ligands. Previous studies have shown that PPAR agonists regulate T-cell survival, activation and T helper cell differentiation into effector subsets: Th1, Th2, Th17, and Tregs. PPARγ has also been associated with B cells. The present review addresses these issues by placing PPARγ agonists in the context of adaptive immune responses and the relation of the activation of these receptors with the expression of cytokines involved in adaptive immunity.
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39
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IL-17A and Th17 cells in lung inflammation: an update on the role of Th17 cell differentiation and IL-17R signaling in host defense against infection. Clin Dev Immunol 2013; 2013:267971. [PMID: 23956759 PMCID: PMC3730142 DOI: 10.1155/2013/267971] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Accepted: 06/27/2013] [Indexed: 02/06/2023]
Abstract
The significance of Th17 cells and interleukin- (IL-)17A signaling in host defense and disease development has been demonstrated in various infection and autoimmune models. Numerous studies have indicated that Th17 cells and its signature cytokine IL-17A are critical to the airway's immune response against various bacteria and fungal infection. Cytokines such as IL-23, which are involved in Th17 differentiation, play a critical role in controlling Klebsiella pneumonia (K. pneumonia) infection. IL-17A acts on nonimmune cells in infected tissues to strengthen innate immunity by inducing the expression of antimicrobial proteins, cytokines, and chemokines. Mice deficient in IL-17 receptor (IL-17R) expression are susceptible to infection by various pathogens. In this review, we summarize the recent advances in unraveling the mechanism behind Th17 cell differentiation, IL-17A/IL-17R signaling, and also the importance of IL-17A in pulmonary infection.
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40
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Kim SH, Hong JH, Lee YC. Ursolic acid, a potential PPARγ agonist, suppresses ovalbumin-induced airway inflammation and Penh by down-regulating IL-5, IL-13, and IL-17 in a mouse model of allergic asthma. Eur J Pharmacol 2013; 701:131-43. [PMID: 23201068 DOI: 10.1016/j.ejphar.2012.11.033] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 11/12/2012] [Accepted: 11/13/2012] [Indexed: 01/08/2023]
Abstract
Allergic asthma is a chronic airway disorder characterized by airway hyperresponsiveness to allergens, chronic airway inflammation, airway edema, increased mucus secretion, excess production of Th2 cytokines, and eosinophil accumulation in the lungs. Ursolic acid is known for its pharmacological effects, such as its anti-tumor, anti-inflammatory and antimicrobial activities. To investigate the anti-asthmatic effects and mechanism of ursolic acid, we studied the development of pulmonary eosinophilic inflammation and enhanced pause (Penh) in a mouse model of allergic asthma. In this study, BALB/c mice were systemically sensitized to ovalbumin followed by intratracheal, intraperitoneal, and aerosol allergen challenges. We investigated the effect of ursolic acid and Cyclosporin A (CsA) on Penh, pulmonary eosinophilic infiltration, various immune cell phenotypes, Th2 cytokines, IL-17 production, and ovalbumin specific IgE production in a mouse model of asthma. In BALB/c mice, ursolic acid had suppressed eosinophil infiltration, allergic airway inflammation, and Penh, which occurred by suppressing the production of IL-5, IL-13, IL-17, and ovalbumin-specific IgE by blocking the GATA-3 and STAT6 pathways. Our data suggest the therapeutic mechanism of ursolic acid in asthma is based on reductions of Th2 cytokines (IL-5 and IL-13), ovalbumin-specific IgE production, and eosinophil infiltration via the Th2-GATA-3, STAT6, and IL-17-NF-κB pathways.
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Affiliation(s)
- Seung-Hyung Kim
- Institute of Traditional Medicine & Bioscience, Daejeon University, Daejeon, Republic of Korea
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Qi ZX, Wang LY, Fan YC, Zhang JJ, Li T, Wang K. Increased peripheral RORα and RORγt mRNA expression is associated with acute-on-chronic hepatitis B liver failure. J Viral Hepat 2012; 19:811-22. [PMID: 23043388 DOI: 10.1111/j.1365-2893.2012.01603.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
T helper cells17 (Th17) have accurate but inconclusive roles in the pathogenesis of acute-on-chronic hepatitis B liver failure (ACHBLF). Retinoic acid-related orphan receptor γ t(RORγt) and RORα are two lineage-specific nuclear receptors directly mediating Th17 differentiation. This study was aimed to evaluate the gene expression of RORα and RORγt and their potential role in ACHBLF. Forty patients with liver failure, 30 with chronic hepatitis B (CHB) and 20 healthy controls were studied. The mRNA levels of RORα and RORγt in peripheral mononuclear cells were determined by quantitative real-time polymerase chain reaction. The frequency of peripheral Th17 cells was determined using flow cytometry. The serum levels of interleukin-6(IL-6), transforming growth factor -β (TGF-β), interleukin-17(IL-17), interleukin-23(IL-23) and interferon-γ (IFN-γ) were measured by enzyme-linked immunosorbent assay. The frequency of peripheral Th17 cells in patients with liver failure was significantly increased compared to patients with CHB and controls. The peripheral mRNA levels of RORα and RORγt in hepatitis B-associated acute-on-chronic liver failure were significantly higher than in patients with CHB and controls as were the serum levels of IL-6 and TGF-β. The serum level of IFN-γ in patients with acute-on-chronic liver failure from HBV was significantly higher than patients with CHB but lower than controls. In patients with acute-on-chronic liver failure associated with HBV, RORγt, IL-6 and IL-23 were positively correlated with the frequency of Th17 cells, while RORα, TGF-β and IFN-γ had no correlation with the latter. The mRNA level of RORγt was positively correlated with model of end-stage liver disease (MELD) score, but there was no correlation of RORα and MELD score. RORγt plays an important role in the pathogenesis of acute-on-chronic HBV-associated liver failure and might be considered to be a candidate factor consistent with the severity of disease.
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Affiliation(s)
- Z-X Qi
- Department of Hepatology, Qilu Hospital of Shandong University, Jinan, China
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Ludigs K, Parfenov V, Du Pasquier RA, Guarda G. Type I IFN-mediated regulation of IL-1 production in inflammatory disorders. Cell Mol Life Sci 2012; 69:3395-418. [PMID: 22527721 PMCID: PMC11115130 DOI: 10.1007/s00018-012-0989-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 03/14/2012] [Accepted: 04/03/2012] [Indexed: 02/07/2023]
Abstract
Although contributing to inflammatory responses and to the development of certain autoimmune pathologies, type I interferons (IFNs) are used for the treatment of viral, malignant, and even inflammatory diseases. Interleukin-1 (IL-1) is a strongly pyrogenic cytokine and its importance in the development of several inflammatory diseases is clearly established. While the therapeutic use of IL-1 blocking agents is particularly successful in the treatment of innate-driven inflammatory disorders, IFN treatment has mostly been appreciated in the management of multiple sclerosis. Interestingly, type I IFNs exert multifaceted immunomodulatory effects, including the reduction of IL-1 production, an outcome that could contribute to its efficacy in the treatment of inflammatory diseases. In this review, we summarize the current knowledge on IL-1 and IFN effects in different inflammatory disorders, the influence of IFNs on IL-1 production, and discuss possible therapeutic avenues based on these observations.
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Affiliation(s)
- Kristina Ludigs
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland.
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Gaur P, Qadir GA, Upadhyay S, Singh AK, Shukla NK, Das SN. Skewed immunological balance between Th17 (CD4+IL17A+) and Treg (CD4+CD25+FOXP3+) cells in human oral squamous cell carcinoma. Cell Oncol (Dordr) 2012; 35:335-43. [DOI: 10.1007/s13402-012-0093-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/23/2012] [Indexed: 12/18/2022] Open
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Zhi L, Ustyugova IV, Chen X, Zhang Q, Wu MX. Enhanced Th17 differentiation and aggravated arthritis in IEX-1-deficient mice by mitochondrial reactive oxygen species-mediated signaling. THE JOURNAL OF IMMUNOLOGY 2012; 189:1639-47. [PMID: 22798682 DOI: 10.4049/jimmunol.1200528] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CD4(+) Th1 and Th17 cells both can cause autoimmune diseases, either alone or collaboratively, if left unchecked. However, what determines the dominant Th effector phenotype in a specific autoimmune disease remains poorly understood. Our present investigation shows that null mutation of IEX-1 promotes differentiation of Th17 cells but compromises the survival of Th1 cells. The differential effect gave rise to a greater number of Th17 cells, a higher level of IL-17 production, and more severe arthritis in IEX-1 knockout mice than in wild-type mice after immunizations with collagen. IEX-1 deficiency-facilitated Th17 cell differentiation was mediated by the increased formation of reactive oxygen species (ROS) at mitochondria following T cell activation, as suggested by marked inhibition of Th17 induction with ROS scavenger N-acetylcysteine or mitoquinone, a specific inhibitor for mitochondrial ROS production. Mitochondrial ROS augmented the expression of B cell-activating transcription factor, which may contribute to increased IL-17 production in the absence of IEX-1, in light of its importance in IL-17 transcription. The results demonstrate that mitochondrial ROS contribute significantly to the dominant Th effector phenotype in autoimmunity in addition to the cytokine milieu.
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Affiliation(s)
- Liang Zhi
- Department of Dermatology, Wellman Center for Photomedicine, Massachusetts General Hospital, and Harvard Medical School, Boston, MA 02114, USA
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Liang SL, Wang WZ, Huang S, Wang XK, Zhang S, Wu Y. Th17 helper cell and T-cell immunoglobulin and mucin domain 3 involvement in Guillain-Barré syndrome. Immunopharmacol Immunotoxicol 2012; 34:1039-46. [PMID: 22738814 DOI: 10.3109/08923973.2012.697469] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
OBJECTIVE AND DESIGN We investigated the involvement of Th17 cells and T-cell immunoglobulin and mucin domain 3 (TIM-3) in Guillain-Barré syndrome (GBS) in comparison to healthy subjects. MATERIALS AND SUBJECTS Peripheral blood samples were obtained from 29 healthy subjects and 29 GBS patients. TREATMENT Peripheral blood mononuclear cells (PBMCs) and CD4(+) T cells were stimulated with anti-CD3 and anti-CD28 mAbs, in the absence or presence of anti-TIM-3 mAb. METHODS mRNA levels of TIM-3 and the transcription factor retinoic acid-related orphan receptor γt (RORγt) were determined by RT-PCR and were expressed relative to β-actin mRNA (housekeeping gene). Serum IFN-γ and IL-17 levels were determined by ELISA. RESULTS Compared to controls, relative TIM-3 mRNA levels were lower in both stimulated and unstimulated PBMCs from GBS patients. Unstimulated GBS CD4(+) T cells and GBS CD4+ T cells stimulated with anti-CD3 and CD28 mAbs had higher relative RORγt mRNA expression compared to controls. GBS CD4(+) T cells secreted significantly more IFN-γ and IL-17 in the presence of anti-TIM-3 mAb. GBS patients had (1) higher numbers of Th17, but not Th1 or Th2 cells in peripheral blood and (2) higher serum concentrations of IFN-γ and IL-17 compared to controls. CONCLUSION TIM-3 may inhibit Th17 cell activation, thereby modulating their cytokine secretion patterns. Th17 cell differentiation, IL-17 levels, and TIM-3 regulation may be involved in the pathogenesis of GBS.
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Affiliation(s)
- Song-lan Liang
- Department of Neurology, the Second Affiliated Hospital ofHarbin Medical University, Harbin, Helongjiang, PR China
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Morita M, Watanabe M, Inoue N, Inaoka C, Akamizu T, Tatsumi KI, Hidaka Y, Iwatani Y. Functional polymorphisms inTBX21andHLXare associated with development and prognosis of Graves' disease. Autoimmunity 2011; 45:129-36. [DOI: 10.3109/08916934.2011.622013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Won HY, Jang EJ, Min HJ, Hwang ES. Enhancement of Allergen-induced Airway Inflammation by NOX2 Deficiency. Immune Netw 2011; 11:169-74. [PMID: 21860610 PMCID: PMC3153669 DOI: 10.4110/in.2011.11.3.169] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Revised: 06/09/2011] [Accepted: 06/14/2011] [Indexed: 01/06/2023] Open
Abstract
Background NADPH oxidase (NOX) modulates cell proliferation, differentiation and immune response through generation of reactive oxygen species. Particularly, NOX2 is recently reported to be important for regulating Treg cell differentiation of CD4+ T cells. Methods We employed ovalbumin-induced airway inflammation in wild-type and NOX2-deficient mice and analyzed tissue histopathology and cytokine profiles. Results We investigated whether NOX2-deficiency affects T cell-mediated airway inflammation. Ovalbumin injection which activates T cell-mediated allergic response increased airway inflammation in wild-type mice, as evidenced by increased immune cell infiltration, allergic cytokine expression, and goblet cell hyperplasia in the lung. Interestingly, NOX2 knockout (KO) mice were more susceptible to allergen-induced lung inflammation compared to wild-type mice. Immune cells including neutrophils, lymphocytes, macrophages, and eosinophils were drastically infiltrated into the lung of NOX2 KO mice and mucus secretion was substantially increased in deficiency of NOX2. Furthermore, inflammatory allergic cytokines and eotaxin were significantly elevated in NOX2 KO mice, in accordance with enhanced generation of inflammatory cytokines interleukin-17 and interferon-γ by CD4+ T cells. Conclusion These results indicate that NOX2 deficiency favorably produces inflammatory cytokines by T cells and thus increases the susceptibility to severe airway inflammation.
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Affiliation(s)
- Hee Yeon Won
- College of Pharmacy and Division of Life and Pharmaceutical Sciences, Ewha Womans University, Seoul 120-750, Korea
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Eustace A, Smyth LJC, Mitchell L, Williamson K, Plumb J, Singh D. Identification of Cells Expressing IL-17A and IL-17F in the Lungs of Patients With COPD. Chest 2011; 139:1089-1100. [PMID: 20864612 DOI: 10.1378/chest.10-0779] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Affiliation(s)
- Amanda Eustace
- University of Manchester, NIHR Translational Research Facility, University Hospital of South Manchester Foundation Trust, Manchester, England
| | - Lucy J C Smyth
- University of Manchester, NIHR Translational Research Facility, University Hospital of South Manchester Foundation Trust, Manchester, England
| | - Lorna Mitchell
- University of Manchester, NIHR Translational Research Facility, University Hospital of South Manchester Foundation Trust, Manchester, England
| | - Kate Williamson
- University of Manchester, NIHR Translational Research Facility, University Hospital of South Manchester Foundation Trust, Manchester, England
| | - Jonathan Plumb
- University of Manchester, NIHR Translational Research Facility, University Hospital of South Manchester Foundation Trust, Manchester, England.
| | - Dave Singh
- University of Manchester, NIHR Translational Research Facility, University Hospital of South Manchester Foundation Trust, Manchester, England
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