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Kong W, Li X, Zou M, Zhang Y, Cai H, Zhang L, Wang X. iNKT17 cells play a pathogenic role in ethinylestradiol-induced cholestatic hepatotoxicity. Arch Toxicol 2023; 97:561-580. [PMID: 36329302 DOI: 10.1007/s00204-022-03403-1] [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: 07/27/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
IL-17 is closely associated with inflammation in intrahepatic cholestasis (IHC). Targeting IL-17 ameliorates IHC in mice. Invariant natural killer T (iNKT) cells are predominantly enriched in the liver and they mediate drug-induced liver injury through their secreted cytokines. However, whether iNKT17 cells are involved in ethinylestradiol (EE)-induced IHC remains unclear. In the present study, the administration of EE (10 mg/kg in vivo and 6.25 μM in vitro) promoted the activation and expansion of iNKT17 cells, which contributed to a novel hepatic iNKT17/Treg imbalance. iNKT cell-deficient Jα18-/- mice and the RORγt inhibitor digoxin (20 μg) alleviated EE-induced cholestatic hepatotoxicity and downregulated the IL-17 signalling pathway. In contrast, the co-administration of EE with recombinant IL-17 (1 μg) to Jα18-/- mice induced cholestatic hepatotoxicity and increased the infiltration of hepatic neutrophils and monocytes. Importantly, the administration of IL-17-/- iNKT cells (3.5 × 105) to Jα18-/- mice resulted in the attenuation of hepatotoxicity and the recruitment of fewer hepatic neutrophils and monocytes than the adoptive transfer of wild-type iNKT cells. These results indicated that iNKT17 cells could exert pathogenic effects. The recruitment and activation of iNKT17 cells could be attributed to the high level of CXCR3 expression on their surface. CXCL10 deficiency ameliorated EE-induced cholestatic liver damage, reduced hepatic CXCR3+ iNKT cells and inhibited RORγt expression. These findings suggest that iNKT17 cells play a key role in EE-induced cholestatic liver injury via CXCR3-mediated recruitment and activation. Our study provides new insights and therapeutic targets for cholestatic diseases.
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Affiliation(s)
- Weichao Kong
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China
| | - Xinyu Li
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China
| | - Mengzhi Zou
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China
| | - Yiying Zhang
- Division of Biosciences, University College London, London, WC1E 6BT, UK
| | - Heng Cai
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China
| | - Luyong Zhang
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China.
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| | - Xinzhi Wang
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, 210009, China.
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Large scale cytokine profiling uncovers elevated IL12-p70 and IL-17A in severe pediatric acute respiratory distress syndrome. Sci Rep 2021; 11:14158. [PMID: 34239039 PMCID: PMC8266860 DOI: 10.1038/s41598-021-93705-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 06/28/2021] [Indexed: 01/20/2023] Open
Abstract
The specific cytokines that regulate pediatric acute respiratory distress syndrome (PARDS) pathophysiology remains unclear. Here, we evaluated the respiratory cytokine profile in PARDS to identify the molecular signatures associated with severe disease. A multiplex suspension immunoassay was used to profile 45 cytokines, chemokines and growth factors. Cytokine concentrations were compared between severe and non-severe PARDS, and correlated with oxygenation index (OI). Partial least squares regression modelling and regression coefficient plots were used to identify a composite of key mediators that differentially segregated severe from non-severe disease. The mean (standard deviation) age and OI of this cohort was 5.2 (4.9) years and 17.8 (11.3), respectively. Early PARDS patients with severe disease exhibited a cytokine signature that was up-regulated for IL-12p70, IL-17A, MCP-1, IL-4, IL-1β, IL-6, MIP-1β, SCF, EGF and HGF. In particular, pro-inflammatory cytokines (IL-6, MCP-1, IP-10, IL-17A, IL-12p70) positively correlated with OI early in the disease. Whereas late PARDS was characterized by a differential lung cytokine signature consisting of both up-regulated (IL-8, IL-12p70, VEGF-D, IL-4, GM-CSF) and down-regulated (IL-1β, EGF, Eotaxin, IL-1RA, and PDGF-BB) profiles segregating non-severe and severe groups. This cytokine signature was associated with increased transcription, T cell activation and proliferation as well as activation of mitogen-activated protein kinase pathway that underpin PARDS severity.
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Rolandelli A, Pellegrini JM, Hernández Del Pino RE, Tateosian NL, Amiano NO, Morelli MP, Castello FA, Casco N, Levi A, Palmero DJ, García VE. The Non-synonymous rs763780 Single-Nucleotide Polymorphism in IL17F Gene Is Associated With Susceptibility to Tuberculosis and Advanced Disease Severity in Argentina. Front Immunol 2019; 10:2248. [PMID: 31616423 PMCID: PMC6764169 DOI: 10.3389/fimmu.2019.02248] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 09/05/2019] [Indexed: 12/18/2022] Open
Abstract
Th17 lymphocytes, that produce IL17A, IL17F, and IL22, play a crucial role during the immune response against Mycobacterium tuberculosis (Mtb) infection. Whereas, the contribution of IL17A in immunity to tuberculosis is usually accepted, the role of IL17F has been scarcely studied so far. The aim of this work was to evaluate the existence of a potential association of the non-synonymous variant rs763780 SNP of the IL17F gene with human tuberculosis. Accordingly, by comparing healthy donors (HD) and tuberculosis patients (TB) populations we demonstrated an association between the C allele of the SNP and the susceptibility to tuberculosis disease in Argentina. Furthermore, we found that peripheral blood mononuclear cells (PBMCs) from individuals with a more effective immune response against Mtb secreted the highest levels of IL17F when stimulated with a lysate of Mtb (Mtb-Ag). Besides, we evidenced that Mtb-Ag-stimulated PBMCs from HD carrying the C variant of the SNP displayed the lowest IFNG secretion, proliferation index, and SLAM expression as compared to TT carriers. Moreover, Mtb-Ag-stimulated PBMCs from TB carrying the C allele produced the lowest levels of IFNG, the highest level of IL17A, and the minimum proliferation indexes as compared to TT TB, suggesting a relationship between the C allele and tuberculosis severity. In fact, TB carrying the C allele presented a more severe disease, with the highest bacilli burden in sputum. Together, our findings identify the IL17F rs763780 SNP as a biomarker of tuberculosis susceptibility and advanced disease severity in Argentina, suggesting that IL17F could be a critical cytokine in tuberculosis immunity.
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Affiliation(s)
- Agustín Rolandelli
- Department of Biological Chemistry, University of Buenos Aires (UBA), School of Sciences, Buenos Aires, Argentina.,Institute of Biological Chemistry of Exact and Natural Sciences (IQUIBICEN), National Council of Science and Technology (CONICET), Buenos Aires, Argentina
| | - Joaquín Miguel Pellegrini
- Department of Biological Chemistry, University of Buenos Aires (UBA), School of Sciences, Buenos Aires, Argentina.,Institute of Biological Chemistry of Exact and Natural Sciences (IQUIBICEN), National Council of Science and Technology (CONICET), Buenos Aires, Argentina
| | - Rodrigo Emanuel Hernández Del Pino
- Center of Investigation and Transference of National Northwest University of Buenos Aires (CITNOBA), The National Northwest University of Buenos Aires (UNNOBA)-CONICET, Buenos Aires, Argentina
| | - Nancy Liliana Tateosian
- Department of Biological Chemistry, University of Buenos Aires (UBA), School of Sciences, Buenos Aires, Argentina.,Institute of Biological Chemistry of Exact and Natural Sciences (IQUIBICEN), National Council of Science and Technology (CONICET), Buenos Aires, Argentina
| | - Nicolás Oscar Amiano
- Department of Biological Chemistry, University of Buenos Aires (UBA), School of Sciences, Buenos Aires, Argentina.,Institute of Biological Chemistry of Exact and Natural Sciences (IQUIBICEN), National Council of Science and Technology (CONICET), Buenos Aires, Argentina
| | - María Paula Morelli
- Department of Biological Chemistry, University of Buenos Aires (UBA), School of Sciences, Buenos Aires, Argentina.,Institute of Biological Chemistry of Exact and Natural Sciences (IQUIBICEN), National Council of Science and Technology (CONICET), Buenos Aires, Argentina
| | - Florencia Andrea Castello
- Department of Biological Chemistry, University of Buenos Aires (UBA), School of Sciences, Buenos Aires, Argentina.,Institute of Biological Chemistry of Exact and Natural Sciences (IQUIBICEN), National Council of Science and Technology (CONICET), Buenos Aires, Argentina
| | - Nicolás Casco
- Tisioneumonology Division, F. J. Muñiz Hospital, Buenos Aires, Argentina
| | - Alberto Levi
- Tisioneumonology Division, F. J. Muñiz Hospital, Buenos Aires, Argentina
| | | | - Verónica Edith García
- Department of Biological Chemistry, University of Buenos Aires (UBA), School of Sciences, Buenos Aires, Argentina.,Institute of Biological Chemistry of Exact and Natural Sciences (IQUIBICEN), National Council of Science and Technology (CONICET), Buenos Aires, Argentina
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A Pro-Inflammatory Biomarker-Profile Predicts Amputation-Free Survival in Patients with Severe Limb Ischemia. Sci Rep 2019; 9:10740. [PMID: 31341203 PMCID: PMC6656730 DOI: 10.1038/s41598-019-47217-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 07/08/2019] [Indexed: 12/13/2022] Open
Abstract
Patients with Severe Limb Ischemia (SLI) have a high risk of amputation and mortality. Here, we investigated a panel of serum biomarkers with the aim of identifying biomarkers for major events and mechanisms that contribute to disease progression in established SLI. A panel of biomarkers including GROα, HGF, SCF, SCGFβ, SDF1α, TRAIL, IL-6, IL-8, FGFβ, GCSF, GMCSF, IP10, MCP1, PDGFbb, RANTES, TNFα, VEGF, sICAM, sVCAM, TM, and E-selectin was measured in serum samples from a subset (n = 108) of the JUVENTAS cohort. The primary outcome was major events, defined as major amputation or death. The inflammatory biomarkers IL-6, IL-8, GROα and IP-10 were significantly elevated in patients who reached a major endpoint. Results were validated in a secondary cohort (n = 146). Cox regression showed that adjusted hazard ratios were 1.40 (95% CI: 1.15-1.70, p = 0.0007) and 1.48 (95% CI 1.16-1.87, p = 0.001) for IL-6 and IP-10 in a fully adjusted model containing both biomarkers. A prediction model using IL-6 and IP-10 showed predictive accuracy with an AUC of ~ 78% in both discovery and validation cohorts, which is higher than previously published models. We conclude that inflammatory biomarkers predict major events in patients with SLI and allow the creation of biomarker-based risk-prediction models.
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Zare Bidoki A, Massoud A, Najafi S, Mohammadzadeh M, Rezaei N. Autosomal dominant deficiency of the interleukin-17F in recurrent aphthous stomatitis: Possible novel mutation in a new entity. Gene 2018; 654:64-68. [DOI: 10.1016/j.gene.2018.02.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 10/24/2017] [Accepted: 02/14/2018] [Indexed: 10/18/2022]
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Zhou J, Ren L, Chen D, Lin X, Huang S, Yin Y, Cao J. IL-17B is elevated in patients with pneumonia and mediates IL-8 production in bronchial epithelial cells. Clin Immunol 2017; 175:91-98. [DOI: 10.1016/j.clim.2016.12.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 11/23/2016] [Accepted: 12/19/2016] [Indexed: 10/20/2022]
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Integrating longitudinal serum IL-17 and IL-23 follow-up, along with autoantibodies variation, contributes to predict bullous pemphigoid outcome. Sci Rep 2015; 5:18001. [PMID: 26656739 PMCID: PMC4677293 DOI: 10.1038/srep18001] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 11/09/2015] [Indexed: 12/17/2022] Open
Abstract
Bullous pemphigoid (BP) is an inflammatory autoimmune bullous disease involving cytokines and proteases in the process of blister formation. Recently, IL-17 and IL-23 were evidenced in lesional skin and serum of BP patients at time of diagnosis, but their involvement in disease outcome has still not been investigated yet. We then analysed IL-17 and IL-23 serum levels during the first months of follow-up upon treatment. Compared with age- and sex- matched controls, high levels of IL-23 were observed at baseline in BP patients serum (P < 0.01), while IL-17 levels was not. However, some BP patients expressed high IL-17 serum level, independently of disease severity. In these patients, those with ongoing remission reduced IL-17 concentration upon treatment (P < 0.001), whereas IL-17 level remained elevated in patients who relapsed. Meanwhile, IL-23 serum levels increased during the first month of treatment in BP patients who later relapsed (P < 0.01) and MMP-9 serum level was not controlled. Accordingly, we found that both IL-17 and IL-23 increased MMP-9 secretion from leukocytes in-vitro. Then, we showed that elevated IL-17/IL-23 serum concentrations helped to discriminate BP patients who later relapsed. Such uncontrolled inflammatory response raises the question whether these molecules could become biological target for BP patients resistant to steroid treatment.
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Morzunov SP, Khaiboullina SF, St Jeor S, Rizvanov AA, Lombardi VC. Multiplex Analysis of Serum Cytokines in Humans with Hantavirus Pulmonary Syndrome. Front Immunol 2015; 6:432. [PMID: 26379668 PMCID: PMC4553709 DOI: 10.3389/fimmu.2015.00432] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 08/09/2015] [Indexed: 12/11/2022] Open
Abstract
Hantavirus pulmonary syndrome (HPS) is an acute zoonotic disease transmitted primarily through inhalation of virus-contaminated aerosols. Hantavirus infection of endothelial cells leads to increased vascular permeability without a visible cytopathic effect. For this reason, it has been suggested that the pathogenesis of HPS is indirect with immune responses, such as cytokine production, playing a dominant role. In order to investigate their potential contribution to HPS pathogenesis, we analyzed the serum of hantavirus-infected subjects and healthy controls for 68 different cytokines, chemokines, angiogenic, and growth factors. Our analysis identified differential expression of cytokines that promote tissue migration of mononuclear cells including T lymphocytes, natural killer cells, and dendritic cells. Additionally, we observed a significant upregulation of cytokines known to regulate leukocyte migration and subsequent repair of lung tissue, as well as cytokines known to increase endothelial monolayer permeability and facilitate leukocyte transendothelial migration. Conversely, we observed a downregulation of cytokines associated with platelet numbers and function, consistent with the thrombocytopenia observed in subjects with HPS. This study corroborates clinical findings and extends our current knowledge regarding immunological and laboratory findings in subjects with HPS.
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Affiliation(s)
- Sergey P Morzunov
- Department of Pathology, School of Medicine, University of Nevada , Reno, NV , USA
| | - Svetlana F Khaiboullina
- Institute of Fundamental Medicine and Biology, Kazan Federal University , Kazan , Russia ; Whittemore Peterson Institute , Reno, NV , USA
| | - Stephen St Jeor
- Department of Microbiology and Immunology, University of Nevada , Reno, NV , USA
| | - Albert A Rizvanov
- Institute of Fundamental Medicine and Biology, Kazan Federal University , Kazan , Russia
| | - Vincent C Lombardi
- Whittemore Peterson Institute , Reno, NV , USA ; Department of Biochemistry, School of Medicine, University of Nevada , Reno, NV , USA
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A short-term mouse model that reproduces the immunopathological features of rhinovirus-induced exacerbation of COPD. Clin Sci (Lond) 2015; 129:245-58. [PMID: 25783022 PMCID: PMC4557402 DOI: 10.1042/cs20140654] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Viral exacerbations of chronic obstructive pulmonary disease (COPD), commonly caused by rhinovirus (RV) infections, are poorly controlled by current therapies. This is due to a lack of understanding of the underlying immunopathological mechanisms. Human studies have identified a number of key immune responses that are associated with RV-induced exacerbations including neutrophilic inflammation, expression of inflammatory cytokines and deficiencies in innate anti-viral interferon. Animal models of COPD exacerbation are required to determine the contribution of these responses to disease pathogenesis. We aimed to develop a short-term mouse model that reproduced the hallmark features of RV-induced exacerbation of COPD. Evaluation of complex protocols involving multiple dose elastase and lipopolysaccharide (LPS) administration combined with RV1B infection showed suppression rather than enhancement of inflammatory parameters compared with control mice infected with RV1B alone. Therefore, these approaches did not accurately model the enhanced inflammation associated with RV infection in patients with COPD compared with healthy subjects. In contrast, a single elastase treatment followed by RV infection led to heightened airway neutrophilic and lymphocytic inflammation, increased expression of tumour necrosis factor (TNF)-α, C-X-C motif chemokine 10 (CXCL10)/IP-10 (interferon γ-induced protein 10) and CCL5 [chemokine (C-C motif) ligand 5]/RANTES (regulated on activation, normal T-cell expressed and secreted), mucus hypersecretion and preliminary evidence for increased airway hyper-responsiveness compared with mice treated with elastase or RV infection alone. In summary, we have developed a new mouse model of RV-induced COPD exacerbation that mimics many of the inflammatory features of human disease. This model, in conjunction with human models of disease, will provide an essential tool for studying disease mechanisms and allow testing of novel therapies with potential to be translated into clinical practice.
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Ko TM, Kuo HC, Chang JS, Chen SP, Liu YM, Chen HW, Tsai FJ, Lee YC, Chen CH, Wu JY, Chen YT. CXCL10/IP-10 is a biomarker and mediator for Kawasaki disease. Circ Res 2015; 116:876-83. [PMID: 25605650 DOI: 10.1161/circresaha.116.305834] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
RATIONALE Kawasaki disease (KD), an acute febrile vasculitis, is the most common cause of acquired heart disease in childhood; however, diagnosing KD can be difficult. OBJECTIVE To identify unique proteomic biomarkers that can be used to facilitate earlier diagnosis of KD. METHODS AND RESULTS We enrolled 214 children with fever and clinical features suggestive of KD. Of those, only 100 were diagnosed with KD. Their plasma samples were globally analyzed for cytokines, chemokines, and cell adhesion molecules using an unbiased, large-scale, quantitative protein array. This study was conducted in 3 stages: discovery, replication, and blinded validation. During the discovery phase (n [KD]=37; n [control]=20), the expression of interleukin-17F, sCD40L, E-selectin, CCL23 (myeloid progenitor inhibitory factor 1), and CXCL10 (IFN-γ-inducible protein 10 [IP-10]) were upregulated during the acute phase in patients with KD when compared with that in the controls. A notable increase was observed in the IP-10 levels (KD, 3037 ± 226.7 pg/mL; control, 672 ± 130.4 pg/mL; P=4.1 × 10(-11)). Receiver-operating characteristic analysis of the combined discovery and replication data (n [KD]=77; n [control]=77) showed that the IP-10 level had high area under the curve values (0.94 [95% confidence interval, 0.9055-0.9778]; sensitivity, 100%; and specificity, 77%). With 1318 pg/mL as the optimal cutoff, the blinded validation study confirmed that the IP-10 levels were a good predictor of KD. With intravenous immunoglobulin treatment, the IP-10 levels returned to normal. The downstream receptor of IP-10, CXCR3, was activated in the T cells of patients with acute KD. CONCLUSIONS IP-10 may be used as a biomarker to facilitate KD diagnosis, and it may provide clues about the pathogenesis of KD.
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Affiliation(s)
- Tai-Ming Ko
- From the Institute of Biomedical Sciences (T.-M.K., S.-P.C., Y.-M.L., H.-W.C., C.-H.C., J.-Y.W., Y.-T.C.) and Institute of Cellular and Organismic Biology (Y.-C.L.), Academia Sinica, Taipei, Taiwan; Department of Pediatrics and Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan (H.-C.K.); Chang Gung University College of Medicine, Taoyuan, Taiwan (H.-C.K.); Department of Pediatric Cardiology, Children's Hospital of China Medical University, Taichung, Taiwan (J.-S.C.); School of Medicine (J.-S.C.), School of Chinese Medicine (F.-J.T.), and Department of Medical Genetics (F.-J.T., C.-H.C., J.-Y.W.), China Medical University Hospital, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan (F.-J.T.); and Department of Pediatrics, Duke University Medical Center, Durham, NC (Y.-T.C.)
| | - Ho-Chang Kuo
- From the Institute of Biomedical Sciences (T.-M.K., S.-P.C., Y.-M.L., H.-W.C., C.-H.C., J.-Y.W., Y.-T.C.) and Institute of Cellular and Organismic Biology (Y.-C.L.), Academia Sinica, Taipei, Taiwan; Department of Pediatrics and Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan (H.-C.K.); Chang Gung University College of Medicine, Taoyuan, Taiwan (H.-C.K.); Department of Pediatric Cardiology, Children's Hospital of China Medical University, Taichung, Taiwan (J.-S.C.); School of Medicine (J.-S.C.), School of Chinese Medicine (F.-J.T.), and Department of Medical Genetics (F.-J.T., C.-H.C., J.-Y.W.), China Medical University Hospital, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan (F.-J.T.); and Department of Pediatrics, Duke University Medical Center, Durham, NC (Y.-T.C.)
| | - Jeng-Sheng Chang
- From the Institute of Biomedical Sciences (T.-M.K., S.-P.C., Y.-M.L., H.-W.C., C.-H.C., J.-Y.W., Y.-T.C.) and Institute of Cellular and Organismic Biology (Y.-C.L.), Academia Sinica, Taipei, Taiwan; Department of Pediatrics and Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan (H.-C.K.); Chang Gung University College of Medicine, Taoyuan, Taiwan (H.-C.K.); Department of Pediatric Cardiology, Children's Hospital of China Medical University, Taichung, Taiwan (J.-S.C.); School of Medicine (J.-S.C.), School of Chinese Medicine (F.-J.T.), and Department of Medical Genetics (F.-J.T., C.-H.C., J.-Y.W.), China Medical University Hospital, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan (F.-J.T.); and Department of Pediatrics, Duke University Medical Center, Durham, NC (Y.-T.C.)
| | - Shih-Ping Chen
- From the Institute of Biomedical Sciences (T.-M.K., S.-P.C., Y.-M.L., H.-W.C., C.-H.C., J.-Y.W., Y.-T.C.) and Institute of Cellular and Organismic Biology (Y.-C.L.), Academia Sinica, Taipei, Taiwan; Department of Pediatrics and Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan (H.-C.K.); Chang Gung University College of Medicine, Taoyuan, Taiwan (H.-C.K.); Department of Pediatric Cardiology, Children's Hospital of China Medical University, Taichung, Taiwan (J.-S.C.); School of Medicine (J.-S.C.), School of Chinese Medicine (F.-J.T.), and Department of Medical Genetics (F.-J.T., C.-H.C., J.-Y.W.), China Medical University Hospital, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan (F.-J.T.); and Department of Pediatrics, Duke University Medical Center, Durham, NC (Y.-T.C.)
| | - Yi-Min Liu
- From the Institute of Biomedical Sciences (T.-M.K., S.-P.C., Y.-M.L., H.-W.C., C.-H.C., J.-Y.W., Y.-T.C.) and Institute of Cellular and Organismic Biology (Y.-C.L.), Academia Sinica, Taipei, Taiwan; Department of Pediatrics and Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan (H.-C.K.); Chang Gung University College of Medicine, Taoyuan, Taiwan (H.-C.K.); Department of Pediatric Cardiology, Children's Hospital of China Medical University, Taichung, Taiwan (J.-S.C.); School of Medicine (J.-S.C.), School of Chinese Medicine (F.-J.T.), and Department of Medical Genetics (F.-J.T., C.-H.C., J.-Y.W.), China Medical University Hospital, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan (F.-J.T.); and Department of Pediatrics, Duke University Medical Center, Durham, NC (Y.-T.C.)
| | - Hui-Wen Chen
- From the Institute of Biomedical Sciences (T.-M.K., S.-P.C., Y.-M.L., H.-W.C., C.-H.C., J.-Y.W., Y.-T.C.) and Institute of Cellular and Organismic Biology (Y.-C.L.), Academia Sinica, Taipei, Taiwan; Department of Pediatrics and Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan (H.-C.K.); Chang Gung University College of Medicine, Taoyuan, Taiwan (H.-C.K.); Department of Pediatric Cardiology, Children's Hospital of China Medical University, Taichung, Taiwan (J.-S.C.); School of Medicine (J.-S.C.), School of Chinese Medicine (F.-J.T.), and Department of Medical Genetics (F.-J.T., C.-H.C., J.-Y.W.), China Medical University Hospital, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan (F.-J.T.); and Department of Pediatrics, Duke University Medical Center, Durham, NC (Y.-T.C.)
| | - Fuu-Jen Tsai
- From the Institute of Biomedical Sciences (T.-M.K., S.-P.C., Y.-M.L., H.-W.C., C.-H.C., J.-Y.W., Y.-T.C.) and Institute of Cellular and Organismic Biology (Y.-C.L.), Academia Sinica, Taipei, Taiwan; Department of Pediatrics and Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan (H.-C.K.); Chang Gung University College of Medicine, Taoyuan, Taiwan (H.-C.K.); Department of Pediatric Cardiology, Children's Hospital of China Medical University, Taichung, Taiwan (J.-S.C.); School of Medicine (J.-S.C.), School of Chinese Medicine (F.-J.T.), and Department of Medical Genetics (F.-J.T., C.-H.C., J.-Y.W.), China Medical University Hospital, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan (F.-J.T.); and Department of Pediatrics, Duke University Medical Center, Durham, NC (Y.-T.C.)
| | - Yi-Ching Lee
- From the Institute of Biomedical Sciences (T.-M.K., S.-P.C., Y.-M.L., H.-W.C., C.-H.C., J.-Y.W., Y.-T.C.) and Institute of Cellular and Organismic Biology (Y.-C.L.), Academia Sinica, Taipei, Taiwan; Department of Pediatrics and Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan (H.-C.K.); Chang Gung University College of Medicine, Taoyuan, Taiwan (H.-C.K.); Department of Pediatric Cardiology, Children's Hospital of China Medical University, Taichung, Taiwan (J.-S.C.); School of Medicine (J.-S.C.), School of Chinese Medicine (F.-J.T.), and Department of Medical Genetics (F.-J.T., C.-H.C., J.-Y.W.), China Medical University Hospital, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan (F.-J.T.); and Department of Pediatrics, Duke University Medical Center, Durham, NC (Y.-T.C.)
| | - Chien-Hsiun Chen
- From the Institute of Biomedical Sciences (T.-M.K., S.-P.C., Y.-M.L., H.-W.C., C.-H.C., J.-Y.W., Y.-T.C.) and Institute of Cellular and Organismic Biology (Y.-C.L.), Academia Sinica, Taipei, Taiwan; Department of Pediatrics and Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan (H.-C.K.); Chang Gung University College of Medicine, Taoyuan, Taiwan (H.-C.K.); Department of Pediatric Cardiology, Children's Hospital of China Medical University, Taichung, Taiwan (J.-S.C.); School of Medicine (J.-S.C.), School of Chinese Medicine (F.-J.T.), and Department of Medical Genetics (F.-J.T., C.-H.C., J.-Y.W.), China Medical University Hospital, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan (F.-J.T.); and Department of Pediatrics, Duke University Medical Center, Durham, NC (Y.-T.C.)
| | - Jer-Yuarn Wu
- From the Institute of Biomedical Sciences (T.-M.K., S.-P.C., Y.-M.L., H.-W.C., C.-H.C., J.-Y.W., Y.-T.C.) and Institute of Cellular and Organismic Biology (Y.-C.L.), Academia Sinica, Taipei, Taiwan; Department of Pediatrics and Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan (H.-C.K.); Chang Gung University College of Medicine, Taoyuan, Taiwan (H.-C.K.); Department of Pediatric Cardiology, Children's Hospital of China Medical University, Taichung, Taiwan (J.-S.C.); School of Medicine (J.-S.C.), School of Chinese Medicine (F.-J.T.), and Department of Medical Genetics (F.-J.T., C.-H.C., J.-Y.W.), China Medical University Hospital, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan (F.-J.T.); and Department of Pediatrics, Duke University Medical Center, Durham, NC (Y.-T.C.).
| | - Yuan-Tsong Chen
- From the Institute of Biomedical Sciences (T.-M.K., S.-P.C., Y.-M.L., H.-W.C., C.-H.C., J.-Y.W., Y.-T.C.) and Institute of Cellular and Organismic Biology (Y.-C.L.), Academia Sinica, Taipei, Taiwan; Department of Pediatrics and Kawasaki Disease Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan (H.-C.K.); Chang Gung University College of Medicine, Taoyuan, Taiwan (H.-C.K.); Department of Pediatric Cardiology, Children's Hospital of China Medical University, Taichung, Taiwan (J.-S.C.); School of Medicine (J.-S.C.), School of Chinese Medicine (F.-J.T.), and Department of Medical Genetics (F.-J.T., C.-H.C., J.-Y.W.), China Medical University Hospital, Taichung, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan (F.-J.T.); and Department of Pediatrics, Duke University Medical Center, Durham, NC (Y.-T.C.).
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11
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Dragon S, Hirst SJ, Lee TH, Gounni AS. IL-17A mediates a selective gene expression profile in asthmatic human airway smooth muscle cells. Am J Respir Cell Mol Biol 2014; 50:1053-63. [PMID: 24393021 PMCID: PMC4068909 DOI: 10.1165/rcmb.2012-0267oc] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Accepted: 12/16/2013] [Indexed: 12/25/2022] Open
Abstract
Airway smooth muscle (ASM) cells are thought to contribute to the pathogenesis of allergic asthma by orchestrating and perpetuating airway inflammation and remodeling responses. In this study, we evaluated the IL-17RA signal transduction and gene expression profile in ASM cells from subjects with mild asthma and healthy individuals. Human primary ASM cells were treated with IL-17A and probed by the Affymetrix GeneChip array, and gene targets were validated by real-time quantitative RT-PCR. Genomic analysis underlined the proinflammatory nature of IL-17A, as multiple NF-κB regulatory factors and chemokines were induced in ASM cells. Transcriptional regulators consisting of primary response genes were overrepresented and displayed dynamic expression profiles. IL-17A poorly enhanced IL-1β or IL-22 gene responses in ASM cells from both subjects with mild asthma and healthy donors. Interestingly, protein modifications to the NF-κB regulatory network were not observed after IL-17A stimulation, although oscillations in IκBε expression were detected. ASM cells from subjects with mild asthma up-regulated more genes with greater overall variability in response to IL-17A than from healthy donors. Finally, in response to IL-17A, ASM cells displayed rapid activation of the extracellular signal-regulated kinase/ribosomal S6 kinase signaling pathway and increased nuclear levels of phosphorylated extracellular signal-regulated kinase. Taken together, our results suggest that IL-17A mediated modest gene expression response, which, in cooperation with the NF-κB signaling network, may regulate the gene expression profile in ASM cells.
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Affiliation(s)
- Stéphane Dragon
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Stuart J. Hirst
- Department of Physiology, Monash University, Melbourne, Victoria, Australia; and
| | - Tak H. Lee
- Division of Asthma, Allergy, and Lung Biology, King’s College London, Medical Research Council and Asthma United Kingdom Centre in Allergic Mechanisms of Asthma, London, United Kingdom
| | - Abdelilah S. Gounni
- Department of Immunology, University of Manitoba, Winnipeg, Manitoba, Canada
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Ota K, Kawaguchi M, Matsukura S, Kurokawa M, Kokubu F, Fujita J, Morishima Y, Huang SK, Ishii Y, Satoh H, Hizawa N. Potential involvement of IL-17F in asthma. J Immunol Res 2014; 2014:602846. [PMID: 24829928 PMCID: PMC4009148 DOI: 10.1155/2014/602846] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 12/03/2013] [Accepted: 12/05/2013] [Indexed: 01/13/2023] Open
Abstract
The expression of IL-17F is seen in the airway of asthmatics and its level is correlated with disease severity. Several studies have demonstrated that IL-17F plays a pivotal role in allergic airway inflammation and induces several asthma-related molecules such as CCL20. IL-17F-induced CCL20 may attract Th17 cells into the airway resulting in the recruitment of additional Th17 cells to enhance allergic airway inflammation. We have recently identified, for the first time, that bronchial epithelial cells are its novel cell source in response to IL-33 via ST2-ERK1/2-MSK1 signaling pathway. The receptor for IL-17F is the heterodimeric complex of IL-17RA and IL-17RC, and IL-17F activates many signaling pathways. In a case-control study of 867 unrelated Japanese subjects, a His161 to Arg161 (H161R) substitution in the third exon of the IL-17F gene was associated with asthma. In atopic patients with asthma, prebronchodilator baseline FEV1/FVC values showed a significant association with the H161R variant. Moreover, this variant is a natural antagonist for the wild-type IL-17F. Moreover, IL-17F is involved in airway remodeling and steroid resistance. Hence, IL-17F may play an orchestrating role in the pathogenesis of asthma and may provide a valuable therapeutic target for development of novel strategies.
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Affiliation(s)
- Kyoko Ota
- Division of Clinical Medicine, Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Mio Kawaguchi
- Division of Clinical Medicine, Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Satoshi Matsukura
- Department of Respiratory Medicine, Showa University Fujigaoka Hospital, 1-30 Aoba-ku, Yokohama 227-8501, Japan
| | - Masatsugu Kurokawa
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Showa University, School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8666, Japan
| | - Fumio Kokubu
- Department of Respiratory Medicine, Showa University Fujigaoka Hospital, 1-30 Aoba-ku, Yokohama 227-8501, Japan
| | - Junichi Fujita
- Division of Clinical Medicine, Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Yuko Morishima
- Division of Clinical Medicine, Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Shau-Ku Huang
- Johns Hopkins University, Asthma and Allergy Center, 5501 Hopkins Bayview Circle, Baltimore, MD 21224-6801, USA
- National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County 35053, Taiwan
| | - Yukio Ishii
- Division of Clinical Medicine, Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Hiroaki Satoh
- Division of Clinical Medicine, Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
| | - Nobuyuki Hizawa
- Division of Clinical Medicine, Department of Respiratory Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
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13
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New findings in the pathogenesis of leprosy and implications for the management of leprosy. Curr Opin Infect Dis 2014; 26:413-9. [PMID: 23982232 DOI: 10.1097/qco.0b013e3283638b04] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE OF REVIEW This review focuses on recent work in leprosy pathogenesis. New research of both innate and adaptive immune responses to Mycobacterium leprae is described. The proposition that Mycobacterium lepromatosis is a new species causing leprosy is discussed. RECENT FINDINGS Modulation of the lipid metabolism and reprogramming of adult Schwann cells have both been suggested as mechanisms used by M. leprae to disseminate the disease. New markers associated with localized, disseminated disease or the occurrences of leprosy reactions include the human interferons, CD163, microRNA-21, NOD2, galectin-3 and toll-like receptor 4. The role of keratinocytes instead of macrophages is underlined in the pathogenesis of leprosy. Adaptive immunity reports focus on the role of T regulatory cells and cytokines secreted by T helper cells in leprosy. Finally, a newly identified species named M. lepromatosis has been detected in patients with leprosy and severe erythema nodosum leprosum. SUMMARY Novel biological pathways have been identified to be associated with the clinical phenotype of leprosy or the occurrence of leprosy reactions. Future work should include larger numbers of clinical samples from across the leprosy spectrum in order to give new insights in the pathogenesis and management of the disease.
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14
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Chaitanya VS, Jadhav RS, Lavania M, Singh M, Valluri V, Sengupta U. Interleukin-17F single-nucleotide polymorphism (7488T>C) and its association with susceptibility to leprosy. Int J Immunogenet 2013; 41:131-7. [DOI: 10.1111/iji.12097] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 05/26/2013] [Accepted: 09/22/2013] [Indexed: 11/28/2022]
Affiliation(s)
- V. S. Chaitanya
- Stanley Browne Research Laboratory; The Leprosy Mission Community Hospital; New Delhi India
| | - R. S. Jadhav
- Department of Microbiology; Government Institute of Science; Mumbai India
| | - M. Lavania
- Stanley Browne Research Laboratory; The Leprosy Mission Community Hospital; New Delhi India
| | - M. Singh
- Lala Ramaswarup Institute of Tuberculosis and Respiratory Diseases; New Delhi India
| | - V. Valluri
- Blue Peter Public Health & Research Centre (BPHRC) LEPRA India - BPHRC; Hyderabad India
| | - U. Sengupta
- Consultant Scientist and Head, Stanley Browne Laboratory; The Leprosy Mission Community Hospital; New Delhi India
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15
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Chaitanya S, Lavania M, Turankar RP, Karri SR, Sengupta U. Increased serum circulatory levels of interleukin 17F in type 1 reactions of leprosy. J Clin Immunol 2012; 32:1415-20. [PMID: 22847545 DOI: 10.1007/s10875-012-9747-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Accepted: 07/16/2012] [Indexed: 12/15/2022]
Abstract
PURPOSE Leprosy is a chronic infectious disease caused by Mycobacterium leprae affecting mainly skin and peripheral nerves. Acute inflammatory episodes in the borderline immunological spectrum of the disease cause severe nerve and tissue damage leading to deformities. Finding of any serological marker for leprosy reactions will help in prediction of reactions and in early treatment intervention. The objective of this study was to measure the serum circulatory levels of Interleukin 17F (IL 17F) and to correlate the levels with type 1 and type 2 reactional states and with clinico-histopathological spectrum of leprosy. We studied IL 17F to delineate its role and its clinical implications in leprosy reactions. METHODS Patients were classified based on the Ridley DS and Jopling WH Classification and blood samples (5 ml each) were collected from 80 active untreated leprosy cases in Type 1 reaction (T1R), 21 cases in Type 2 (Erythema Nodosum Leprosum ENL) reaction (T2R), 80 cases without reaction (NR), and 94 non-leprosy cases (NL). Serum was separated and measured for IL 17F levels using ELISA (Commercial Kits, R&D Systems Inc., USA). RESULTS IL 17F levels were significantly higher in the T1R group when compared to the NR group (p < 0.001). The borderline lepromatous group showed the highest levels of IL 17F among the other groups in the disease spectrum. Bacteriological index (BI) showed negative correlation with the IL 17F levels. CONCLUSION The results specify that serum circulatory levels of IL 17F are elevated during T1Rs in the borderline spectrum of the disease and thus may play a role in the regulation of inflammatory responses associated with reactions in leprosy.
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Affiliation(s)
- Sundeep Chaitanya
- Stanley Browne Research Laboratory, The Leprosy Mission Community Hospital, Nand Nagri, Shahdara, New Delhi, India, 110093.
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Fujita J, Kawaguchi M, Kokubu F, Ohara G, Ota K, Huang SK, Morishima Y, Ishii Y, Satoh H, Sakamoto T, Hizawa N. Interleukin-33 induces interleukin-17F in bronchial epithelial cells. Allergy 2012; 67:744-50. [PMID: 22540331 DOI: 10.1111/j.1398-9995.2012.02825.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2012] [Indexed: 10/28/2022]
Abstract
BACKGROUND IL-33 is clearly expressed in the airway of patients with asthma, but its role in asthma has not yet been fully understood. IL-17F is also involved in the pathogenesis of asthma. However, the regulatory mechanisms of IL-17F expression remain to be defined. To further indentify the role of IL-33 in asthma, we investigated the expression of IL-17F by IL-33 in bronchial epithelial cells and its signaling mechanisms. METHODS Bronchial epithelial cells were stimulated with IL-33. The levels of IL-17F expression were analyzed using real-time PCR and ELISA. Next, the involvement of ST2, MAP kinases, and mitogen- and stress-activated protein kinase1 (MSK1) was determined by Western blot analyses. Various kinase inhibitors and anti-ST2 neutralizing Abs were added to the culture to identify the key signaling events leading to the expression of IL-17F, in conjunction with the use of short interfering RNAs (siRNAs) targeting MSK1. RESULTS IL-33 significantly induced IL-17F gene and protein expression. The receptor for IL-33, ST2, was expressed in bronchial epithelial cells. Among MAP kinases, IL-33 phosphorylated ERK1/2, but not p38MAPK and JNK. It was inhibited by the pretreatment of anti-ST2 neutralizing (blocking) Abs. MEK inhibitor significantly blocked IL-17F production. Moreover, IL-33 phosphorylated MSK1, and MEK inhibitor diminished its phosphorylation. Finally, MSK1 inhibitors and transfection of the siRNAs targeting MSK1 significantly blocked the IL-17F expression. CONCLUSIONS IL-33 induces IL-17F via ST2-ERK1/2-MSK1 signaling pathway in bronchial epithelial cells. These data suggest that the IL-33/IL-17F axis is involved in allergic airway inflammation and may be a novel therapeutic target.
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Affiliation(s)
- J. Fujita
- Department of Pulmonary Medicine; Institute of Clinical Medicine; University of Tsukuba; Ibaraki; Japan
| | - M. Kawaguchi
- Department of Pulmonary Medicine; Institute of Clinical Medicine; University of Tsukuba; Ibaraki; Japan
| | - F. Kokubu
- Department of Respiratory Medicine; Showa University Fujigaoka Hospital; Yokohama; Japan
| | - G. Ohara
- Department of Pulmonary Medicine; Institute of Clinical Medicine; University of Tsukuba; Ibaraki; Japan
| | - K. Ota
- Department of Pulmonary Medicine; Institute of Clinical Medicine; University of Tsukuba; Ibaraki; Japan
| | | | - Y. Morishima
- Department of Pulmonary Medicine; Institute of Clinical Medicine; University of Tsukuba; Ibaraki; Japan
| | - Y. Ishii
- Department of Pulmonary Medicine; Institute of Clinical Medicine; University of Tsukuba; Ibaraki; Japan
| | - H. Satoh
- Department of Pulmonary Medicine; Institute of Clinical Medicine; University of Tsukuba; Ibaraki; Japan
| | - T. Sakamoto
- Department of Pulmonary Medicine; Institute of Clinical Medicine; University of Tsukuba; Ibaraki; Japan
| | - N. Hizawa
- Department of Pulmonary Medicine; Institute of Clinical Medicine; University of Tsukuba; Ibaraki; Japan
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Beyer I, Njemini R, Bautmans I, Demanet C, Mets T. Immunomodulatory effect of NSAID in geriatric patients with acute infection: effects of piroxicam on chemokine/cytokine secretion patterns and levels of heat shock proteins. A double-blind randomized controlled trial. (ISRCTN58517443). Cell Stress Chaperones 2012; 17:255-65. [PMID: 22057579 PMCID: PMC3273556 DOI: 10.1007/s12192-011-0304-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Revised: 10/12/2011] [Accepted: 10/13/2011] [Indexed: 10/15/2022] Open
Abstract
Inflammation in older persons is associated with frailty, cachexia, and disability. We hypothesized that NSAID treatment in addition to antibiotics in older patients with acute infection might rapidly reduce inflammatory cytokines and might be of therapeutic potential to improve outcomes. A double-blind controlled trial was conducted in geriatric patients admitted for acute infection. Patients were randomized to receive either 10 mg piroxicam or placebo. Patients ≥70 years with CRP levels >10 mg/L of acute infectious origin were eligible. Twenty-five cyto-/chemokines as well as heat shock proteins Hsp27 (HSPB1) and Hsp70 (HSPA1A) were measured the first 4 days and then weekly until discharge, with a maximum of 3 weeks. Thirty Caucasian patients were included (median age 84.5 years, 67% female, median CRP 87.5 mg/L). In the piroxicam group, IL-6 and IP-10/CXCL10 decreased significantly during the study period. Relationships between cytokines were disrupted in the piroxicam group: for 12 out of 20 cytokines the number of correlations between changes in serum levels was significantly lower compared to placebo. Serum Hsp70 levels decreased significantly in the piroxicam group, but not in the placebo group. Without heat challenge, intracellular levels of Hsp70 in monocytes decreased in both groups, whereas HsP27 in monocytes increased with piroxicam with a significant difference compared to placebo at 3 weeks. Piroxicam in this setting cannot be considered merely as an anti-inflammatory drug, but rather as an immunomodulator. Further studies are needed to establish whether these effects can change functional outcomes in geriatric patients.
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Affiliation(s)
- Ingo Beyer
- Department of Geriatrics, Universitair Ziekenhuis Brussel, Brussels, Belgium.
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Simoni Y, Gautron AS, Beaudoin L, Bui LC, Michel ML, Coumoul X, Eberl G, Leite-de-Moraes M, Lehuen A. NOD mice contain an elevated frequency of iNKT17 cells that exacerbate diabetes. Eur J Immunol 2011; 41:3574-85. [PMID: 22002883 DOI: 10.1002/eji.201141751] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 08/18/2011] [Accepted: 10/10/2011] [Indexed: 01/13/2023]
Abstract
Invariant natural killer T (iNKT) cells are a distinct lineage of innate-like T lymphocytes and converging studies in mouse models have demonstrated the protective role of iNKT cells in the development of type 1 diabetes. Recently, a new subset of iNKT cells, producing high levels of the pro-inflammatory cytokine IL-17, has been identified (iNKT17 cells). Since this cytokine has been implicated in several autoimmune diseases, we have analyzed iNKT17 cell frequency, absolute number and phenotypes in the pancreas and lymphoid organs in non-obese diabetic (NOD) mice. The role of iNKT17 cells in the development of diabetes was investigated using transfer experiments. NOD mice exhibit a higher frequency and absolute number of iNKT17 cells in the lymphoid organs as compared with C57BL/6 mice. iNKT17 cells infiltrate the pancreas of NOD mice where they express IL-17 mRNA. Contrary to the protective role of CD4(+) iNKT cells, the CD4(-) iNKT cell population, which contains iNKT17 cells, enhances the incidence of diabetes. Treatment with a blocking anti-IL-17 antibody prevents the exacerbation of the disease. This study reveals that different iNKT cell subsets play distinct roles in the regulation of type 1 diabetes and iNKT17 cells, which are abundant in NOD mice, exacerbate diabetes development.
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Affiliation(s)
- Yannick Simoni
- INSERM U986, Hôpital Cochin/Saint-Vincent de Paul, Paris, France
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IL-17F Induces CCL20 in Bronchial Epithelial Cells. J Allergy (Cairo) 2011; 2011:587204. [PMID: 22013453 PMCID: PMC3195431 DOI: 10.1155/2011/587204] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Accepted: 08/08/2011] [Indexed: 11/19/2022] Open
Abstract
IL-17F plays a crucial role in airway inflammatory diseases including asthma, but its function has not been fully elucidated. CCL20 is also involved in allergic airway inflammation, while its regulatory mechanisms remain to be defined. To further identify a novel role of IL-17F, the expression of CCL20 by IL-17F in bronchial epithelial cells and the signaling mechanisms involved were investigated. Bronchial epithelial cells were stimulated with IL-17F, and the levels of CCL20 gene and protein measured, with the effects of the addition of various kinase inhibitors and siRNAs also investigated. IL-17F significantly induced the expression of CCL20 gene and protein. Pretreatment with inhibitors for MEK1/2, Raf1 and MSK1, and overexpression of a Raf1 dominant-negative mutant significantly diminished IL-17F-induced CCL20 production. Moreover, transfection of the siRNAs targeting MSK1, p90RSK, and CREB blocked CCL20 expression. These findings suggest that IL-17F is able to induce CCL20 via Raf1-MEK1/2-ERK1/2-MSK1/p90RSK-CREB signaling pathway in bronchial epithelial cells. The IL-17F/CCL20 axis may be a novel pharmacological target for asthma.
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20
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Cao J, Zhang L, Li D, Xu F, Huang S, Xiang Y, Yin Y, Ren G. IL-27 is elevated in patients with COPD and patients with pulmonary TB and induces human bronchial epithelial cells to produce CXCL10. Chest 2011; 141:121-130. [PMID: 21778255 PMCID: PMC7094562 DOI: 10.1378/chest.10-3297] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Background The role of IL-27 in the pathogenesis of airway inflammatory diseases remains elusive. We, therefore, have studied its concentrations in the sputum and plasma of patients with COPD and patients with pulmonary TB (PTB), and further investigated the mechanism-of-action effects of IL-27 on bronchial epithelial cells in vitro. Methods Human bronchial epithelial cells grown on air-liquid interface culture were activated by IL-27, alone, or in combination with other inflammatory cytokines in the presence or absence of various signaling molecule inhibitors. The expression of CXCL10 was detected by reverse transcription polymerase chain reaction and enzyme-linked immunosorbent assay (ELISA). The underlying signaling pathways were studied by intracellular staining using flow cytometry, Western blot, ELISA, or siRNA. Results Significantly higher sputum and plasma concentrations of IL-27 were found in patients with COPD (n = 34; P < .01 and P < .001, respectively) or patients with PTB (n = 31; P < .01 and P < .001, respectively) than in healthy control subjects (n = 48). Sputum, but not plasma, IL-27 levels in patients with COPD correlated negatively with FEV1 (r = −0.51, P < .01). Sputum, but not plasma, IL-27 in patients with PTB correlated positively with mycobacterial load in sputum (r = 0.48, P < .05). Further in vitro studies demonstrated that IL-27 could induce gene and protein expression of CXCL10 in bronchial epithelial cells, which was regulated by the activation of the phosphatidylinositol 3-OH kinase (PI3K)-Akt signaling pathway. Conclusions The production of IL-27 is related to the pathogenesis of COPD and PTB, and IL-27 induces the expression of CXCL10 in bronchial epithelial cells through the activation of the PI3K-Akt signaling pathway.
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Affiliation(s)
- Ju Cao
- Department of Laboratory Medicine, Chongqing, China
| | - Liping Zhang
- Department of Laboratory Medicine, Chongqing, China
| | - Dairong Li
- Department of Respiratory Disease, Chongqing, China
| | - Fang Xu
- Department of Emergency and Intensive Care Unit, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | | | - Yu Xiang
- Department of Laboratory Medicine, Chongqing, China
| | - Yibing Yin
- Department of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Guosheng Ren
- Molecular Oncology and Epigenetics Laboratory, Chongqing, China.
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Akdis M, Burgler S, Crameri R, Eiwegger T, Fujita H, Gomez E, Klunker S, Meyer N, O'Mahony L, Palomares O, Rhyner C, Ouaked N, Quaked N, Schaffartzik A, Van De Veen W, Zeller S, Zimmermann M, Akdis CA. Interleukins, from 1 to 37, and interferon-γ: receptors, functions, and roles in diseases. J Allergy Clin Immunol 2011; 127:701-21.e1-70. [PMID: 21377040 DOI: 10.1016/j.jaci.2010.11.050] [Citation(s) in RCA: 518] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2010] [Revised: 11/11/2010] [Accepted: 11/12/2010] [Indexed: 12/17/2022]
Abstract
Advancing our understanding of mechanisms of immune regulation in allergy, asthma, autoimmune diseases, tumor development, organ transplantation, and chronic infections could lead to effective and targeted therapies. Subsets of immune and inflammatory cells interact via ILs and IFNs; reciprocal regulation and counter balance among T(h) and regulatory T cells, as well as subsets of B cells, offer opportunities for immune interventions. Here, we review current knowledge about ILs 1 to 37 and IFN-γ. Our understanding of the effects of ILs has greatly increased since the discoveries of monocyte IL (called IL-1) and lymphocyte IL (called IL-2); more than 40 cytokines are now designated as ILs. Studies of transgenic or knockout mice with altered expression of these cytokines or their receptors and analyses of mutations and polymorphisms in human genes that encode these products have provided important information about IL and IFN functions. We discuss their signaling pathways, cellular sources, targets, roles in immune regulation and cellular networks, roles in allergy and asthma, and roles in defense against infections.
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Affiliation(s)
- Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research, University of Zurich, Davos, Switzerland.
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Hirata T, Osuga Y, Takamura M, Saito A, Hasegawa A, Koga K, Yoshino O, Hirota Y, Harada M, Taketani Y. Interleukin-17F increases the secretion of interleukin-8 and the expression of cyclooxygenase 2 in endometriosis. Fertil Steril 2011; 96:113-7. [PMID: 21601196 DOI: 10.1016/j.fertnstert.2011.04.060] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2010] [Revised: 04/19/2011] [Accepted: 04/19/2011] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To examine the effects of interleukin (IL)-17F on the secretion of IL-8 and the gene expression of cyclooxygenase 2 (COX2) in endometriotic stromal cells. DESIGN In vitro experimental study using human samples. SETTING University hospital. PATIENT(S) Endometriotic tissues were obtained from women with ovarian endometriomas undergoing laparoscopic surgery. INTERVENTION(S) Endometriotic stromal cells (ESCs) were cultured with IL-17F. MAIN OUTCOME MEASURE(S) Concentrations of IL-8 were measured by a specific ELISA, and messenger RNA levels of IL-8 and COX2 were measured by real-time reverse transcription-polymerase chain reaction (PCR). RESULT(S) IL-17F increased the secretion of IL-8 from ESCs, and the effect was inhibited by antibodies for IL-17 receptor A and IL-17 receptor C. Tumor necrosis factor α (TNF-α) synergistically enhanced IL-17F-induced increase in IL-8 secretion from ESCs. The IL-17F increased the gene expression of IL-8 and COX2 in ESCs. CONCLUSION(S) These findings suggest that IL-17F may stimulate the development of endometriosis by up-regulation of IL-8 and COX2.
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Affiliation(s)
- Tetsuya Hirata
- Department of Obstetrics and Gynecology, University of Tokyo, Tokyo, Japan
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23
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Hu Y, Shen F, Crellin NK, Ouyang W. The IL-17 pathway as a major therapeutic target in autoimmune diseases. Ann N Y Acad Sci 2010; 1217:60-76. [DOI: 10.1111/j.1749-6632.2010.05825.x] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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24
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Kawaguchi M, Fujita J, Kokubu F, Ohara G, Huang SK, Matsukura S, Ishii Y, Adachi M, Satoh H, Hizawa N. Induction of insulin-like growth factor-I by interleukin-17F in bronchial epithelial cells. Clin Exp Allergy 2010; 40:1036-43. [PMID: 20642578 DOI: 10.1111/j.1365-2222.2010.03527.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND Increased expression of IL-17F has been noted in the airway of asthmatic patients, but its role in asthma has not been fully elucidated. Insulin-like growth FACTOR-I (IGF-I) is known to be involved in airway remodelling and inflammation, while its regulatory mechanisms remain to be defined. OBJECTIVE To further clarify the biological function of IL-17F, we investigated whether IL-17F is able to regulate the expression of IGF-I in bronchial epithelial cells. METHODS Bronchial epithelial cells were stimulated with IL-17F in the presence or absence of T-helper type 2 cytokines. Various kinase inhibitors were added to the culture to identify the key signalling events leading to the expression of IGF-I, in conjunction with the use of short interfering RNAs (siRNAs) targeting mitogen- and stress-activated protein kinase (MSK) 1, p90 ribosomal S6 kinase (p90RSK), and cyclic AMP response element-binding protein (CREB). RESULTS IL-17F significantly induced IGF-I gene and protein expression, and co-stimulation with IL-4 and IL-13 augmented its production. MAP kinase kinase (MEK) inhibitors and the Raf1 kinase inhibitor significantly inhibited IGF-I production, and the combination of PD98059 and Raf1 kinase inhibitor showed further inhibition. Overexpression of Raf1 and Ras dominant-negative mutants inhibited its expression. MSK1 inhibitors significantly blocked IL17F-induced IGF-I expression. Moreover, transfection of the siRNAs targeting MSK1, p90RSK, and CREB blocked its expression. CONCLUSIONS In bronchial epithelial cells, IL-17F is able to induce the expression of IGF-I via the Raf1-MEK1/2-ERK1/2-MSK1/p90RSK-CREB pathway in vitro.
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Affiliation(s)
- M Kawaguchi
- Department of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Ibaraki, Japan.
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Reynolds JM, Angkasekwinai P, Dong C. IL-17 family member cytokines: regulation and function in innate immunity. Cytokine Growth Factor Rev 2010; 21:413-23. [PMID: 21074482 DOI: 10.1016/j.cytogfr.2010.10.002] [Citation(s) in RCA: 174] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Recently, the IL-17 family member cytokines have become prominent subjects of investigation. IL-17 (IL-17A) is the best-described member of this family where its production has been mainly attributed to a specialized T helper subset of the adaptive immune response termed Th17. However, recent research on this and other Th17 cytokines has revealed new sources and functions of IL-17 family members in the innate immune response. This review will highlight recent advances in the field of IL-17 family member cytokines and will predominantly focus on the innate regulation and function of IL-17, IL-17F, and IL-25.
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Affiliation(s)
- Joseph M Reynolds
- Department of Immunology and Center for Inflammation and Cancer, M.D. Anderson Cancer Center, Houston, TX 77054, USA
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26
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Hsu SC, Chen CH, Tsai SH, Kawasaki H, Hung CH, Chu YT, Chang HW, Zhou Y, Fu J, Plunkett B, Su SN, Vieths S, Lee RT, Lee YC, Huang SK. Functional interaction of common allergens and a C-type lectin receptor, dendritic cell-specific ICAM3-grabbing non-integrin (DC-SIGN), on human dendritic cells. J Biol Chem 2010; 285:7903-10. [PMID: 20080962 DOI: 10.1074/jbc.m109.058370] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Fucosylated glycans on pathogens are known to shape the immune response through their interaction with pattern recognition receptors, such as C-type lectin receptors (CLRs), on dendritic cells (DCs). Similar fucosylated structures are also commonly found in a variety of allergens, but their functional significance remains unclear. To test a hypothesis that allergen-associated glycans serve as the molecular patterns in functional interaction with CLRs, an enzyme-linked immunosorbent assay-based binding assay was performed to determine the binding activity of purified allergens and allergen extracts. THP-1 cells and monocyte-derived DCs (MDDCs) were investigated as a model for testing the functional effects of allergen-CLR interaction using enzyme-linked immunosorbent assay, Western blotting, and flow cytometry. Significant and saturable bindings of allergens and allergen extracts with variable binding activities to DC-specific ICAM3-grabbing non-integrin (DC-SIGN) and its related receptor, L-SIGN, were found. These include bovine serum albumin coupled with a common glycoform (fucosylated glycan lacking the alpha1,3-linked mannose) of allergens and a panel of purified allergens, including BG60 (Cyn dBG-60; Bermuda grass pollen) and Der p2 (house dust mite). The binding activity was calcium-dependent and inhibitable by fucose and Lewis-x trisaccharides (Le(x)). In THP-1 cells and human MDDCs, BG60-DC-SIGN interaction led to the activation of Raf-1 and ERK kinases and the induction of tumor necrosis factor-alpha expression. This effect could be blocked, in part, by Raf-1 inhibitor or anti-DC-SIGN antibodies and was significantly reduced in cells with DC-SIGN knockdown. These results suggest that allergens are able to interact with DC-SIGN and induce tumor necrosis factor-alpha expression in MDDCs via, in part, Raf-1 signaling pathways.
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Affiliation(s)
- Shih-Chang Hsu
- Johns Hopkins Asthma and Allergy Center, Baltimore, Maryland 21224, USA
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Abstract
After activation, CD4+ helper T (Th) cells differentiate into cytokine-secreting effector subsets. A novel subset of CD4+ helper T (Th) cells that produce two related cytokines IL-17 and IL-17F has been recently identified and shown to play critical function in inflammation and autoimmunity. Here I summarize recent work by us as well as other investigators in understanding the transcriptional regulation of Th17-cell differentiation, their developmental relationship with regulatory T cells and the function of IL-17 and IL-17F in vivo.
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Kawaguchi M, Fujita J, Kokubu F, Huang SK, Homma T, Matsukura S, Adachi M, Hizawa N. IL-17F-induced IL-11 release in bronchial epithelial cells via MSK1-CREB pathway. Am J Physiol Lung Cell Mol Physiol 2009; 296:L804-10. [PMID: 19251839 DOI: 10.1152/ajplung.90607.2008] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
IL-17F is involved in asthma, but its biological function and signaling pathway have not been fully elucidated. IL-11 is clearly expressed in the airway of patients with allergic airway diseases such as asthma and plays an important role in airway remodeling and inflammation. Therefore, we investigated the expression of IL-11 by IL-17F in bronchial epithelial cells. Bronchial epithelial cells were cultured in the presence or absence of IL-17F and/or Th2 cytokines (IL-4 and IL-13) or various kinase inhibitors to analyze the expression of IL-11. Next, activation of mitogen- and stress-activated protein kinase (MSK) 1 by IL-17F was investigated. Moreover, the effect of short interfering RNAs (siRNAs) targeting MSK1 and cAMP response element binding protein (CREB) on IL-17F-induced IL-11 expression was investigated. IL-17F induced IL-11 expression, whereas the costimulation with IL-4 and IL-13 augmented this effect even further. MEK inhibitors PD-98059, U0126, and Raf1 kinase inhibitor I, significantly inhibited IL-11 production, whereas overexpression of a Raf1 dominant-negative mutant inhibited its expression. IL-17F clearly phosphorylated MSK1, whereas PD-98059 inhibited the phosphorylation of IL-17F-induced MSK1. Both MSK1 inhibitors Ro-31-8220 and H89 significantly blocked IL-11 expression. Moreover, transfection of the cells with siRNAs targeting MSK1 inhibited activation of CREB, and the siRNAs targeting MSK1 and CREB blocked expression of IL-11. These data suggest that IL-17F may be involved in airway inflammation and remodeling via the induction of IL-11, and RafI-MEK1/2-ERK1/2-MSK1-CREB is identified as a novel signaling pathway participating in this process. Therefore, the IL-17F/IL-11 axis may be a valuable therapeutic target for asthma.
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Affiliation(s)
- Mio Kawaguchi
- Department of Respiratory Medicine, University of Tsukuba, Ibaraki 3058575, Japan.
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29
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Abstract
The interleukin-17 (IL-17) family consists of six cytokines in mammals. Among them, IL-17 and IL-17F are expressed by a novel subset of CD4(+) helper T cells and play critical function in inflammation and autoimmunity. IL-17E, also called IL-25, has been associated with allergic responses. Here, I summarize recent work by my laboratory as well as other investigators in understanding the regulation and function of these three cytokines. From these studies, IL-17 family cytokines may serve as novel targets for pharmaceutical intervention of immune and inflammatory diseases.
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Affiliation(s)
- Chen Dong
- Department of Immunology, MD Anderson Cancer Center, Houston, TX 77030, USA.
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30
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You QH, Sun GY, Wang N, Shen JL, Wang Y. Interleukin-17F-induced pulmonary microvascular endothelial monolayer hyperpermeability via the protein kinase C pathway. J Surg Res 2009; 162:110-21. [PMID: 19577259 DOI: 10.1016/j.jss.2009.01.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2008] [Revised: 01/06/2009] [Accepted: 01/13/2009] [Indexed: 01/05/2023]
Abstract
BACKGROUND Interleukin (IL)-17F is involved in lung inflammation, but the effect of IL-17F on endothelial permeability and its signaling pathway remain ill-defined. The current study sought to investigate the effect of IL-17F on endothelium and assess the role of protein kinase C (PKC) and src-suppressed C kinase substrate (SSeCKS) in this process. METHODS Rat pulmonary microvascular endothelial monolayers were constructed to determine changes of permeability as measured by means of FITC-dextran and Hank's solution flux across monolayers and transendothelial electrical resistance with or without IL-17F and PKC inhibitors. Additional monolayers were stained using FITC-phalloidin for filamentous actin (F-actin). The gene expression of SSeCKS was analyzed by the reverse transcription-polymerase chains. Alterations of SSeCKS protein were investigated by immunoblotting and immunoprecipitation. RESULTS IL-17F increased endothelial monolayer permeability in a dose- and time-dependent manner. F-actin staining revealed that permeability changes were accompanied by reorganization of cytoskeleton. In the presence of PKC inhibitors, the IL-17F-induced hyperpermeability and reorganization of F-actin were attenuated. The gene and protein expression of SSeCKS were conspicuously elevated after IL-17F challenge. The process of SSeCKS phosphorylation followed a time course that mirrored the time course of hyperpermeability induced by IL-17F. IL-17F-induced SSeCKS phosphorylation was abrogated after PKC inhibitors pretreatment. The translocation of SSeCKS from the cytosol to the membrane and a significant increase in the SSeCKS association with the cytoskeleton were found after IL-17F treatment. CONCLUSIONS IL-17F is an important mediator of increased endothelial permeability. PKC and SSeCKS are integral signaling components essential for IL-17F-induced hyperpermeability.
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Affiliation(s)
- Qing-hai You
- Department of Respiratory Medicine, First Affiliated Hospital of Anhui Medical University, Anhui, Hefei, China
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31
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Abstract
Dry eye is a potent stimulus of both innate and adaptive immune systems. At the nexus of the dry eye inflammatory/immune response is the dynamic interplay between the ocular surface epithelia and the bone marrow-derived immune cells. On the one hand, ocular surface epithelial cells play a key initiating role in this inflammatory reaction. On the other hand, they are targets of cytokines produced by activated T cells that are recruited to the ocular surface in response to dry eye. This interaction between epithelial and immune cells in dry eye will be thoroughly reviewed.
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32
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Akdis CA. New insights into mechanisms of immunoregulation in 2007. J Allergy Clin Immunol 2008; 122:700-709. [PMID: 19014761 DOI: 10.1016/j.jaci.2008.07.048] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Accepted: 07/11/2008] [Indexed: 11/25/2022]
Abstract
Substantial progress in understanding the mechanisms of immune regulation in allergic diseases and asthma has been made during the last year. In asthma, rhinitis, and atopic dermatitis the immune system is activated by allergens, autoantigens, and components of superimposed infectious agents. Immune regulation in the lymphatic organs and in the tissue has an important role in the control and suppression of allergic disease in all stages of the inflammatory process, such as cell migration to tissues, cells gaining an inflammatory and tissue-destructive phenotype in the tissues, and their interaction with resident tissue cells to augment the inflammation. After the discovery of regulatory T cells, the importance of their unique suppressive capacity was strongly emphasized for the suppression of effector T-cell responses. However, it seems that all 3 subsets of effector T(H)1, T(H)2, and T(H)17 cells, as well as regulatory T cells, regulate each other at the level of transcription, major cytokines, and surface molecules. This review highlights key advances in immune regulation that were published in the Journal of Allergy and Clinical Immunology.
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Affiliation(s)
- Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), Davos, Switzerland.
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33
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Broide D. New perspectives on mechanisms underlying chronic allergic inflammation and asthma in 2007. J Allergy Clin Immunol 2008; 122:475-80. [PMID: 18694589 DOI: 10.1016/j.jaci.2008.06.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2008] [Accepted: 06/19/2008] [Indexed: 12/16/2022]
Abstract
This review summarizes selected articles appearing from January to December 2007 in the Journal of Allergy and Clinical Immunology. Articles were chosen that related to advances in mechanisms of chronic allergic inflammation and asthma, including those describing gene association studies, mast cells, IgE, eosinophils, cytokines, the inception of allergy, airway remodeling, preclinical therapeutic targets, and virally induced asthma.
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Affiliation(s)
- David Broide
- Department of Medicine, University of California San Diego, La Jolla, CA 92093-0635, USA.
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Regulatory mechanisms of helper T cell differentiation: new lessons learned from interleukin 17 family cytokines. Pharmacol Ther 2008; 117:374-84. [PMID: 18280574 DOI: 10.1016/j.pharmthera.2007.12.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2007] [Accepted: 12/21/2007] [Indexed: 11/21/2022]
Abstract
Interleukin 17 (IL-17) family consists of six cytokines in mammals. Among them, IL-17 and IL-17F are expressed by a novel subset of CD4+ helper T (Th) cells and play critical function in inflammation and autoimmunity. On the other hand, IL-17E, also called IL-25, has been associated with allergic responses. Here we summarize recent work by us as well as other investigators in understanding the regulation and function of these three cytokines. From these studies, IL-17 family cytokines may serve as novel targets for pharmaceutical intervention of immune and inflammatory diseases.
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35
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Zhang J, Paré PD, Sandford AJ. Recent advances in asthma genetics. Respir Res 2008; 9:4. [PMID: 18197984 PMCID: PMC2244620 DOI: 10.1186/1465-9921-9-4] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2007] [Accepted: 01/15/2008] [Indexed: 12/20/2022] Open
Abstract
There are over 100 genes that have been reported to be associated with asthma or related phenotypes. In 2006–2007 alone there were 53 novel candidate gene associations reported in the literature. Replication of genetic associations and demonstration of a functional mechanism for the associated variants are needed to confirm an asthma susceptibility gene. For most of the candidate genes there is little functional information. In a previous review by Hoffjan et al. published in 2003, functional information was reported for 40 polymorphisms and here we list another 22 genes which have such data. Some important genes such as filaggrin, interleukin-13, interleukin-17 and the cysteinyl leukotriene receptor-1 which not only were replicated by independent association studies but also have functional data are reviewed in this article.
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Affiliation(s)
- Jian Zhang
- James Hogg iCAPTURE Center for Cardiovascular and Pulmonary Research, St, Paul's Hospital, Vancouver, B,C,, V6Z 1Y6,
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