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Landy E, Carol H, Ring A, Canna S. Biological and clinical roles of IL-18 in inflammatory diseases. Nat Rev Rheumatol 2024; 20:33-47. [PMID: 38081945 DOI: 10.1038/s41584-023-01053-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2023] [Indexed: 12/23/2023]
Abstract
Several new discoveries have revived interest in the pathogenic potential and possible clinical roles of IL-18. IL-18 is an IL-1 family cytokine with potent ability to induce IFNγ production. However, basic investigations and now clinical observations suggest a more complex picture. Unique aspects of IL-18 biology at the levels of transcription, activation, secretion, neutralization, receptor distribution and signalling help to explain its pleiotropic roles in mucosal and systemic inflammation. Blood biomarker studies reveal a cytokine for which profound elevation, associated with detectable 'free IL-18', defines a group of autoinflammatory diseases in which IL-18 dysregulation can be a primary driving feature, the so-called 'IL-18opathies'. This impressive specificity might accelerate diagnoses and identify patients amenable to therapeutic IL-18 blockade. Pathogenically, human and animal studies identify a preferential activation of CD8+ T cells over other IL-18-responsive lymphocytes. IL-18 agonist treatments that leverage the site of production or subversion of endogenous IL-18 inhibition show promise in augmenting immune responses to cancer. Thus, the unique aspects of IL-18 biology are finally beginning to have clinical impact in precision diagnostics, disease monitoring and targeted treatment of inflammatory and malignant diseases.
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Affiliation(s)
- Emily Landy
- Program in Microbiology and Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Hallie Carol
- Division of Rheumatology and Immune Dysregulation Program, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
- Institute for Immunology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Aaron Ring
- Translational Science and Therapeutics, Fred Hutchinson Cancer Center, Seattle, WA, USA
| | - Scott Canna
- Program in Microbiology and Immunology, University of Pittsburgh, Pittsburgh, PA, USA.
- Division of Rheumatology and Immune Dysregulation Program, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
- Institute for Immunology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
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Wu J, Zhang X, Wu D, Jin O, Gu J. Evaluation of causal associations between interleukin-18 levels and immune-mediated inflammatory diseases: a Mendelian randomization study. BMC Med Genomics 2023; 16:306. [PMID: 38031150 PMCID: PMC10685486 DOI: 10.1186/s12920-023-01744-z] [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: 06/28/2023] [Accepted: 11/19/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Altered interleukin (IL)-18 levels are associated with immune-mediated inflammatory diseases (IMIDs), but no studies have investigated their causal relationship. This study aimed to examine the causal associations between IL-18 and IMIDs. METHODS We performed a two-sample Mendelian randomization (MR) analysis. Genetic variants were selected from genome-wide association study datasets following stringent assessments. We then used these variants as instrumental variables to estimate the causal effects of IL-18 levels on the risk of developing five common IMIDs: rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), inflammatory bowel disease (IBD), ankylosing spondylitis (AS), and psoriasis. We used the inverse variance-weighted (IVW) method as the primary analysis, with sensitivity analyses performed to avoid potential bias. Reverse-direction MR analyses were performed to rule out the possibility of reverse associations. RESULTS We found that genetically determined higher circulating IL-18 levels were causally associated with a higher risk for SLE (PIVW = 0.009; OR, 1.214; 95% CI, 1.049 - 1.404) and IBD (PIVW < 0.001; OR, 1.142; 95% CI, 1.062 - 1.228), but found no significant associations of IL-18 with RA (PIVW = 0.496; OR, 1.044; 95% CI, 0.923 - 1.180), AS (PIVW = 0.021; OR, 1.181; 95% CI, 1.025 - 1.361), or psoriasis (PIVW = 0.232; OR, 1.198; 95% CI, 0.891 - 1.611). In the reverse direction, no causal relationship existed between SLE or IBD and IL-18 levels. Globally, sensitivity studies using alternative MR methods supported the results that were robust and reliable. The Cochran's Q test, MR-Egger intercept, and MR-Pleiotropy RESidual Sum and Outlier excluded the influence of heterogeneity, horizontal pleiotropy, and outliers. CONCLUSIONS We have demonstrated that elevated IL-18 levels increase the risk of SLE and IBD but not RA, AS, or psoriasis. The results enhanced our understanding of IL-18 in the pathology of IMIDs.
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Affiliation(s)
- Jialing Wu
- Department of Rheumatology and Immunology, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China
| | - Xi Zhang
- Department of Rheumatology and Immunology, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China
| | - Dongze Wu
- Department of Rheumatology and Immunology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Ou Jin
- Department of Rheumatology and Immunology, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China.
| | - Jieruo Gu
- Department of Rheumatology and Immunology, Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, China.
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Landy E, Varghese J, Dang V, Szymczak-Workman A, Kane LP, Canna SW. Complementary HLH susceptibility factors converge on CD8 T-cell hyperactivation. Blood Adv 2023; 7:6949-6963. [PMID: 37738167 PMCID: PMC10690564 DOI: 10.1182/bloodadvances.2023010502] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/24/2023] Open
Abstract
Hemophagocytic lymphohistiocytosis (HLH) and macrophage activation syndrome (MAS) are life-threatening hyperinflammatory syndromes. Familial HLH is caused by genetic impairment of granule-mediated cytotoxicity (eg, perforin deficiency). MAS is linked to excess activity of the inflammasome-activated cytokine interleukin-18 (IL-18). Though individually tolerated, mice with dual susceptibility (Prf1⁻/⁻Il18tg; DS) succumb to spontaneous, lethal hyperinflammation. We hypothesized that understanding how these susceptibility factors synergize would uncover key pathomechanisms in the activation, function, and persistence of hyperactivated CD8 T cells. In IL-18 transgenic (Il18tg) mice, IL-18 effects on CD8 T cells drove MAS after a viral (lymphocytic choriomeningitis virus), but not innate (toll like receptor 9), trigger. In vitro, CD8 T cells also required T-cell receptor (TCR) stimulation to fully respond to IL-18. IL-18 induced but perforin deficiency impaired immunoregulatory restimulation-induced cell death (RICD). Paralleling hyperinflammation, DS mice displayed massive postthymic oligoclonal CD8 T-cell hyperactivation in their spleens, livers, and bone marrow as early as 3 weeks. These cells increased proliferation and interferon gamma production, which contrasted with increased expression of receptors and transcription factors associated with exhaustion. Broad-spectrum antibiotics and antiretrovirals failed to ameliorate the disease. Attempting to genetically "fix" TCR antigen-specificity instead demonstrated the persistence of spontaneous HLH and hyperactivation, chiefly on T cells that had evaded TCR fixation. Thus, drivers of HLH may preferentially act on CD8 T cells: IL-18 amplifies activation and demand for RICD, whereas perforin supplies critical immunoregulation. Together, these factors promote a terminal CD8 T-cell activation state, combining features of exhaustion and effector function. Therefore, susceptibility to hyperinflammation may converge on a unique, unrelenting, and antigen-dependent state of CD8 T-cell hyperactivation.
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Affiliation(s)
- Emily Landy
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA
- Graduate Program in Microbiology and Immunology, University of Pittsburgh, Pittsburgh, PA
| | - Jemy Varghese
- Rheumatology & Immune Dysregulation, Children’s Hospital of Philadelphia, Philadelphia, PA
| | - Vinh Dang
- Rheumatology & Immune Dysregulation, Children’s Hospital of Philadelphia, Philadelphia, PA
| | | | - Lawrence P. Kane
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA
| | - Scott W. Canna
- Rheumatology & Immune Dysregulation, Children’s Hospital of Philadelphia, Philadelphia, PA
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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Mierzchała-Pasierb M, Lipińska-Gediga M, Lewandowski Ł, Krzystek-Korpacka M. Alterations in Serum Concentration of Soluble CD163 within Five Study Days from ICU Admission Are Associated with In-Hospital Mortality of Septic Patients-A Preliminary Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2263. [PMID: 36767629 PMCID: PMC9916291 DOI: 10.3390/ijerph20032263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/20/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND CD163, a cell membrane surface molecule specifically expressed by macrophages with an anti-inflammatory phenotype, participates in innate immunity. The purpose of the study was to evaluate the clinical utility of sCD163 in septic patients in comparison to other parameters associated with infections, mainly PCT, CRP and IL-18. METHODS Serum samples were obtained from 40 septic patients on the ICU admission day, 3rd and 5th study days. The control group consisted of 30 healthy volunteers from whom the specimen was collected once. An enzyme-linked immunosorbent assay (ELISA) was used to determine the concentrations of sCD163 and IL-18. CRP and PCT records, among others, were provided by the hospital. RESULTS Septic shock was associated with the highest concentrations of sCD163 and IL-18. Admission values of sCD163 significantly contributed to mortality prediction in septic patients. CONCLUSIONS The concentration of sCD163 determined on the ICU admission day may potentially be utilized in estimation of the odds of death among septic patients.
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Affiliation(s)
| | | | - Łukasz Lewandowski
- Department of Biochemistry and Immunochemistry, Wroclaw Medical University, 50-368 Wroclaw, Poland
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Hoshino T. My Mentor Howard A. Young. J Interferon Cytokine Res 2022; 42:605-607. [PMID: 35675649 DOI: 10.1089/jir.2022.0074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- Tomoaki Hoshino
- NCI-Frederick, Fredrick, Maryland, USA.,Chest Disease Center, Kurume University Hospital, Kurume, Fukuoka, Japan.,Division of Respirology, Neurology and Rheumatology, Department of Medicine, School of Medicine, Kurume University, Kurume, Fukuoka, Japan
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Sanjel B, Shim WS. The contribution of mouse models to understanding atopic dermatitis. Biochem Pharmacol 2022; 203:115177. [PMID: 35843300 DOI: 10.1016/j.bcp.2022.115177] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 12/28/2022]
Abstract
Atopic dermatitis (AD) is a dermatological disease accompanied by dry and cracked skin with severe pruritus. Although various therapeutic strategies have been introduced to alleviate AD, it remains challenging to cure the disorder. To achieve such a goal, understanding the pathophysiological mechanisms of AD is a prerequisite, requiring mouse models that properly reflect the AD phenotypes. Currently, numerous AD mouse models have been established, but each model has its own advantages and weaknesses. In this review, we categorized and summarized mouse models of AD and described their characteristics from a researcher's perspective.
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Affiliation(s)
- Babina Sanjel
- College of Pharmacy, Gachon University, Hambangmoero 191, Yeonsu-gu, Incheon 21936, Republic of Korea; Gachon Institute of Pharmaceutical Sciences, Hambangmoero 191, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Won-Sik Shim
- College of Pharmacy, Gachon University, Hambangmoero 191, Yeonsu-gu, Incheon 21936, Republic of Korea; Gachon Institute of Pharmaceutical Sciences, Hambangmoero 191, Yeonsu-gu, Incheon 21936, Republic of Korea.
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Behura A, Das M, Kumar A, Naik L, Mishra A, Manna D, Patel S, Mishra A, Singh R, Dhiman R. ESAT-6 impedes IL-18 mediated phagosome lysosome fusion via microRNA-30a upon Calcimycin treatment in mycobacteria infected macrophages. Int Immunopharmacol 2021; 101:108319. [PMID: 34740079 DOI: 10.1016/j.intimp.2021.108319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/05/2021] [Accepted: 10/25/2021] [Indexed: 01/18/2023]
Abstract
The weaponry possessed by Mycobacterium tuberculosis (M. tb) in the form of immunodominant antigens hijack the host immune system to give a survival advantage to this intracellular fiend, but the mechanism of this control is not entirely known. Since we have previously reported the mechanism of autophagy inhibition by early secreted antigenic target 6 kDa (ESAT-6) through microRNA (miR)-30a-3p in Calcimycin treated differentiated THP-1 (dTHP-1) cells, the present study was undertaken to deduce the effect of miR-30a on the immunomodulatory profile of ESAT-6 treated cells and the mechanism involved thereof, if any. Initially, the effect of recombinant ESAT-6 (rESAT-6) on the immunomodulatory profile in Calcimycin-treated phorbol 12-myristate 13-acetate (PMA) dTHP-1 cells was checked. Later, transfection studies using miR-30a-3p inhibitor or -5p mimic highlighted the contrary roles of different arms of the same miRNA in regulating IL-18 response by ESAT-6 in dTHP-1 cells after Calcimycin treatment. By using either IL-18 neutralizing antibody or inhibitors of phosphoinositide 3-kinase (PI3K)/NF-κB/phagosome-lysosome fusion in the miRNA-30a transfected background, IL-18 mediated signaling and intracellular killing of mycobacteria was reversed in the presence of ESAT-6. Overall, the results of this study conclusively prove the contrary roles of miR-30a-3p and miR-30a-5p in regulating IL-18 signaling by ESAT-6 in dTHP-1 cells upon Calcimycin treatment that affected phagosome-lysosome fusion and intracellular survival of mycobacteria.
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Affiliation(s)
- Assirbad Behura
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Mousumi Das
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Ashish Kumar
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Lincoln Naik
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Abtar Mishra
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Debraj Manna
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Salina Patel
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India
| | - Amit Mishra
- Cellular and Molecular Neurobiology Unit, Indian Institute of Technology Jodhpur, Rajasthan 342011, India
| | - Ramandeep Singh
- Tuberculosis Research Laboratory, Vaccine and Infectious Disease Research Centre, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad-Gurugram Expressway, PO Box # 4, Faridabad 121001, Haryana, India
| | - Rohan Dhiman
- Laboratory of Mycobacterial Immunology, Department of Life Science, National Institute of Technology, Rourkela 769008, Odisha, India.
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Genetic and commensal induction of IL-18 drive intestinal epithelial MHCII via IFNγ. Mucosal Immunol 2021; 14:1100-1112. [PMID: 34103660 PMCID: PMC8562907 DOI: 10.1038/s41385-021-00419-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 05/03/2021] [Accepted: 05/19/2021] [Indexed: 02/04/2023]
Abstract
Major histocompatibility complex class II (MHCII) is dynamically expressed on intestinal epithelial cells (IECs) throughout the intestine, but its regulation remains poorly understood. We observed that spontaneous upregulation of IEC MHCII in locally bred Rag1-/- mice correlated with serum Interleukin (IL)-18, was transferrable via co-housing to commercially bred immunodeficient mice and could be inhibited by both IL-12 and IL-18 blockade. Overproduction of intestinal IL-18 due to an activating Nlrc4 mutation upregulated IEC MHCII via classical inflammasome machinery independently of immunodeficiency or dysbiosis. Immunodeficient dysbiosis increased Il-18 transcription, which synergized with NLRC4 inflammasome activity to drive elevations in serum IL-18. This IL-18-MHCII axis was confirmed in several other models of intestinal and systemic inflammation. Elevated IL-18 reliably preceded MHCII upregulation, suggesting an indirect effect on IECs, and mice with IL-18 overproduction showed activation or expansion of type 1 lymphocytes. Interferon gamma (IFNg) was uniquely able to upregulate IEC MHCII in enteroid cultures and was required for MHCII upregulation in several in vivo systems. Thus, we have linked intestinal dysbiosis, systemic inflammation, and inflammasome activity to IEC MHCII upregulation via an intestinal IL-18-IFNg axis. Understanding this process may be crucial for determining the contribution of IEC MHCII to intestinal homeostasis, host defense, and tolerance.
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Mucosal-associated invariant T (MAIT) cells provide B-cell help in vaccinated and subsequently SIV-infected Rhesus Macaques. Sci Rep 2020; 10:10060. [PMID: 32572140 PMCID: PMC7308357 DOI: 10.1038/s41598-020-66964-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 05/26/2020] [Indexed: 02/06/2023] Open
Abstract
Mucosal-associated invariant T (MAIT) cells help combat opportunistic infections. Thus, MAIT cells are of interest in HIV/SIV vaccination and infection. We investigated MAIT cell dynamics and function in rhesus macaque blood and bronchoalveolar lavage (BAL) following mucosal adenovirus (Ad)-SIV recombinant priming, intramuscular SIV envelope boosting and infection following repeated low-dose intravaginal SIV exposures. Increased frequencies of blood MAIT cells over the course of vaccination were observed, which were maintained even 12-weeks post-SIV infection. BAL MAIT cells only increased after the first Ad immunization. Vaccination increased MAIT cell levels in blood and BAL expressing the antiviral cytokine IFN-γ and TNF-α and the proliferation marker Ki67. Upon T cell-specific α-CD3, α-CD28 stimulation, MAIT cells showed a greater capacity to secrete cytokines/chemokines associated with help for B cell activation, migration and regulation compared to CD3+MR1− cells. Culture of MAIT cell supernatants with B cells led to greater tissue like memory B cell frequencies. MAIT cell frequencies in blood and BAL correlated with SIV-specific antibody levels in rectal secretions and with SIV-specific tissue resident memory B cells. Overall, SIV vaccination influenced MAIT cell frequency and functionality. The potential for MAIT cells to provide help to B cells was evident during both vaccination and infection.
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Jin HL, Zhan L, Mei SF, Shao ZY. Serum Cytokines and FeNO in School-Aged Children with Mycoplasma pneumoniae Pneumonia. MEDICAL SCIENCE MONITOR : INTERNATIONAL MEDICAL JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2020; 26:e923449. [PMID: 32564053 PMCID: PMC7328500 DOI: 10.12659/msm.923449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background Mycoplasma pneumoniae is a major cause of community-acquired pneumonia (CAP) that is particularly prevalent in school-aged children. This study explored the potential involvement of cytokines in children with Mycoplasma pneumoniae pneumonia (MPP) infection. Material/Methods Children aged 3–7 years who were hospitalized due to CAP infection were enrolled and divided into 2 groups: an MPP group (n=33) and a NMPP group (n=38), along with 21 age-matched healthy controls. Clinical characteristics and laboratory data were recorded. Serum levels of IL-18, IL-33, IFN-γ, IL-5, IL-6, IL-8, and IL-13 were assessed using Luminex xMAP technology. Correlation analysis and ROC curves analysis were also performed to further explore the role of these detected cytokines in CAP. Results Compared with the healthy controls, the serum expression of IL-18, IL-33, IFN-γ, IL-5, IL-6, IL-8, and IL-13 were significantly higher in the MPP and NMPP groups. Furthermore, serum IL-18 expression was found to be significantly correlated with lgE, FeNO, IL-5, IL-8, and IL-13 concentrations. Significant differences were also observed between the MPP group and NMPP group patients in levels of IL-18, IL-5, and IL-6, and further ROC analysis showed that the area under the curve (AUC) of IL-18 and IL-5 were 0.813 (95% CI: 0.710–0.917; P<0.01) and 0.844 (95% CI: 0.756–0.933; P<0.01), respectively. Conclusions IL-18, IL-33, IFN-γ, IL-5, IL-6, IL-8, and IL-13 serum levels showed significant differences in children with CAP. IL-18 and IL-5 were much higher in the MPP group compared to the NMPP group patients, whereas IL-6 levels were significantly lower in these 2 groups.
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Affiliation(s)
- Hai-Li Jin
- Department of Pediatrics, Zhejiang Integrated Traditional and Western Medicine Hospital, Hangzhou, Zhejiang, China (mainland)
| | - Lu Zhan
- Department of Pediatrics, Zhejiang Integrated Traditional and Western Medicine Hospital, Hangzhou, Zhejiang, China (mainland)
| | - Shu-Fen Mei
- Department of Pediatrics, Zhejiang Integrated Traditional and Western Medicine Hospital, Hangzhou, Zhejiang, China (mainland)
| | - Zheng-Yang Shao
- Department of Pediatrics, Zhejiang Integrated Traditional and Western Medicine Hospital, Hangzhou, Zhejiang, China (mainland)
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Lapuente D, Stab V, Storcksdieck Genannt Bonsmann M, Maaske A, Köster M, Xiao H, Ehrhardt C, Tenbusch M. Innate signalling molecules as genetic adjuvants do not alter the efficacy of a DNA-based influenza A vaccine. PLoS One 2020; 15:e0231138. [PMID: 32243477 PMCID: PMC7122823 DOI: 10.1371/journal.pone.0231138] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 03/14/2020] [Indexed: 01/07/2023] Open
Abstract
In respect to the heterogeneity among influenza A virus strains and the shortcomings of current vaccination programs, there is a huge interest in the development of alternative vaccines that provide a broader and more long-lasting protection. Gene-based approaches are considered as promising candidates for such flu vaccines. In our study, innate signalling molecules from the RIG-I and the NALP3 pathways were evaluated as genetic adjuvants in intramuscular DNA immunizations. Plasmids encoding a constitutive active form of RIG-I (cRIG-I), IPS-1, IL-1β, or IL-18 were co-administered with plasmids encoding the hemagglutinin and nucleoprotein derived from H1N1/Puerto Rico/8/1934 via electroporation in BALB/c mice. Immunogenicity was analysed in detail and efficacy was demonstrated in homologous and heterologous influenza challenge experiments. Although the biological activities of the adjuvants have been confirmed by in vitro reporter assays, their single or combined inclusion in the vaccine did not result in superior vaccine efficacy. With the exception of significantly increased levels of antigen-specific IgG1 after the co-administration of IL-1β, there were only minor alterations concerning the immunogenicity. Since DNA electroporation alone induced substantial inflammation at the injection site, as demonstrated in this study using Mx2-Luc reporter mice, it might override the adjuvants´ contribution to the inflammatory microenvironment and thereby minimizes the influence on the immunogenicity. Taken together, the DNA immunization was protective against subsequent challenge infections but could not be further improved by the genetic adjuvants analysed in this study.
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Affiliation(s)
- Dennis Lapuente
- Institute of Clinical and Molecular Virology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Viktoria Stab
- Department of Molecular and Medical Virology, Ruhr-University Bochum, Bochum, Germany
| | | | - Andre Maaske
- Environmental Medicine, UNIKA-T Augsburg, Technische Universität München and Helmholtz Zentrum, Neuherberg, Germany
| | - Mario Köster
- Model Systems for Infection and Immunity, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Han Xiao
- Institute of Clinical and Molecular Virology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Christina Ehrhardt
- Section of Experimental Virology, Institute of Medical Microbiology, University Hospital Jena, Jena, Germany
| | - Matthias Tenbusch
- Institute of Clinical and Molecular Virology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
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Matsuoka M, Kawayama T, Tominaga M, Kaieda S, Tokunaga Y, Kaku Y, Imaoka H, Kinoshita T, Okamoto M, Akiba J, Hoshino T. Attenuated Airway Eosinophilic Inflammations in IL-38 Knockout Mouse Model. Kurume Med J 2019; 65:37-46. [PMID: 30853691 DOI: 10.2739/kurumemedj.ms652009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND The role of IL-38, a new member of the IL-1 family, in airway eosinophilic inflammatory conditions such as asthma is unclear. To investigate the role of IL-38 in airway eosinophilic inflammation, an IL-38-gene deficient (KO) murine asthma model was analyzed. METHODS The numbers of eosinophils and neutrophils, and levels of IL-5, IL-13 and IL-17A protein and mRNA in bronchoalveolar lavage fluid (BALF) and lung tissue were compared between wild-type (WT) and IL-38-KO mice after OVA sensitization and challenge. The effects of additional purified recombinant mouse (rm) IL-38 protein were investigated in the IL-38-KO murine asthma model. RESULTS The IL-38 and IL-5 mRNA in WT mice was significantly higher after OVA challenge than after saline challenge (p<0.05). The number of airway eosinophils in IL-38-KO mice was significantly lower than in WT mice after OVA challenge (p<0.01). BALF analysis confirmed the lower number of airway eosinophils in IL-38-KO mice and showed that this was significantly associated with lower IL-5 protein levels (r=0.92, p<0.0001). However, the additional rm IL-38 protein did not neutralize airway eosinophilia in IL-38-KO mice. CONCLUSION IL-38 may enhance airway eosinophilic inflammation in asthma through IL-5 induction.
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Affiliation(s)
- Masanobu Matsuoka
- Division of Respirology, Neurology and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine
| | - Tomotaka Kawayama
- Division of Respirology, Neurology and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine
| | - Masaki Tominaga
- Division of Respirology, Neurology and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine
| | - Shinjiro Kaieda
- Division of Respirology, Neurology and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine
| | - Yoshihisa Tokunaga
- Division of Respirology, Neurology and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine
| | - Yoichiro Kaku
- Division of Respirology, Neurology and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine
| | - Haruki Imaoka
- Division of Respirology, Neurology and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine
| | - Takashi Kinoshita
- Division of Respirology, Neurology and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine
| | - Masaki Okamoto
- Division of Respirology, Neurology and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine
| | - Jun Akiba
- Department of Diagnostic Pathology, Kurume University Hospital
| | - Tomoaki Hoshino
- Division of Respirology, Neurology and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine
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Mierzchala-Pasierb M, Krzystek-Korpacka M, Lesnik P, Adamik B, Placzkowska S, Serek P, Gamian A, Lipinska-Gediga M. Interleukin-18 serum levels in sepsis: Correlation with disease severity and inflammatory markers. Cytokine 2019; 120:22-27. [PMID: 31003186 DOI: 10.1016/j.cyto.2019.04.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 03/11/2019] [Accepted: 04/05/2019] [Indexed: 12/19/2022]
Abstract
PURPOSE Sepsis is defined as a life-threatening organ dysfunction caused by a dysregulated host response to infection and a syndrome shaped by pathogen and host factors with characteristic that evolve over time. The study was conducted to evaluate the prognostic and discriminative value of IL-18 assessment in comparison to PCT, CRP, WBC in early stage of sepsis and septic shock. METHODS An observational and prospective study was conducted in the group of 40 ICU patients with diagnosis of sepsis or septic shock, serum PCT, IL-18, CRP and WBC measurements were performed on admission, and on the 2nd, 3rd and 5th therapy day. The level of IL-18 was determined with commercially available test according to manufacturer's protocol. RESULTS There were no statistically significant differences in IL-18 levels in survivors vs non-survivors and in sepsis vs septic shock subgroups the IL-18 levels were statistically significant in the course of the study except for the 5th day. CONCLUSION The PCT, CRP and WBC levels revealed no significant differences between any analyzed subgroups in all time points during study. According to our results the IL-18 is a biomarker better differentiating sepsis and septic shock status than PCT, CRP and WBC but with no prognostic impact.
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Affiliation(s)
| | | | - Patrycja Lesnik
- Department of Anesthesiology and Intensive Therapy, 4th Military Hospital of Wroclaw, Weigla 5, 50-981 Wroclaw, Poland; Department of Pathophysiology, Wroclaw Medical University, Marcinkowskiego 1, 50-368 Wroclaw, Poland.
| | - Barbara Adamik
- Department of Anesthesiology and Intensive Therapy, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland.
| | - Sylwia Placzkowska
- Diagnostics Laboratory for Teaching and Research, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland.
| | - Pawel Serek
- Department of Medical Biochemistry, Wroclaw Medical University, Chalubinskiego 10, 50-368 Wroclaw, Poland.
| | - Andrzej Gamian
- Department of Medical Biochemistry, Wroclaw Medical University, Chalubinskiego 10, 50-368 Wroclaw, Poland.
| | - Malgorzata Lipinska-Gediga
- Department of Anesthesiology and Intensive Therapy, 4th Military Hospital of Wroclaw, Weigla 5, 50-981 Wroclaw, Poland; Faculty of Health Science, Wroclaw Medical University, Wroclaw, Poland.
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14
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IL-1β as mucosal vaccine adjuvant: the specific induction of tissue-resident memory T cells improves the heterosubtypic immunity against influenza A viruses. Mucosal Immunol 2018; 11:1265-1278. [PMID: 29545648 DOI: 10.1038/s41385-018-0017-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 01/19/2018] [Accepted: 02/08/2018] [Indexed: 02/04/2023]
Abstract
A universal influenza vaccine must provide protection against antigenically divergent influenza viruses either through broadly neutralizing antibodies or cross-reactive T cells. Here, intranasal immunizations with recombinant adenoviral vectors (rAd) encoding hemagglutinin (HA) and nucleoprotein (NP) in combination with rAd-Interleukin-(IL)-1β or rAd-IL-18 were evaluated for their efficacy in BALB/c mice. Mucosal delivery of rAd-IL-1β enhanced HA-specific antibody responses including strain-specific neutralizing antibodies. Nevertheless, the beneficial effects on the local T cell responses were much more impressive reflected by increased numbers of CD103+CD69+ tissue-resident memory T cells (TRM). This increased immunogenicity translated into superior protection against infections with homologous and heterologous strains including H1N1, pH1N1, H3N2, and H7N7. Inhibition of the egress of circulating T cells out of the lymph nodes during the heterologous infection had no impact on the degree of protection underscoring the unique potential of TRM for the local containment of mucosal infections. The local co-expression of IL-1β and antigen lead to the activation of critical checkpoints in the formation of TRM including activation of epithelial cells, expression of chemokines and adhesion molecules, recruitment of lung-derived CD103+ DCs, and finally local TRM imprinting. Given the importance of TRM-mediated protection at mucosal barriers, this study has major implications for vaccine development.
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15
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Mende R, Vincent FB, Kandane-Rathnayake R, Koelmeyer R, Lin E, Chang J, Hoi AY, Morand EF, Harris J, Lang T. Analysis of Serum Interleukin (IL)-1β and IL-18 in Systemic Lupus Erythematosus. Front Immunol 2018; 9:1250. [PMID: 29930551 PMCID: PMC5999794 DOI: 10.3389/fimmu.2018.01250] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 05/18/2018] [Indexed: 12/13/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a chronic multisystem autoimmune disease characterized by biological and clinical heterogeneity. The interleukin (IL)-1 superfamily is a group of innate cytokines that contribute to pathogenesis in many autoimmune diseases. IL-1β and IL-18 are two members that have been shown to play a role in murine lupus-like models, but their role in human SLE remains poorly understood. Here, IL-1β and IL-18 were quantified by enzyme-linked immunosorbent assay in the serum of healthy controls (HCs) and SLE patients from a prospectively followed cohort. Disease activity and organ damage were assessed using SLE disease activity index 2000 (SLEDAI-2K) and SLE damage index scores (SDI), respectively. 184 SLE patients (mean age 44.9 years, 91% female, 56% double-stranded deoxyribonucleic acid positive) were compared to 52 HC. SLE patients had median [IQR] SLEDAI-2K of 4 [2,6], and SDI of 1 [0–2]. Serum IL-18 levels were statistically significantly higher in SLE patients compared to HCs. Univariable linear regression analyses showed that patients with active renal disease or irreversible organ damage had statistically significantly elevated serum IL-18 levels. The association between serum IL-18 and active renal disease was confirmed in multivariable analysis after adjusting for ethnicity and organ damage. High baseline serum IL-18 levels were associated with organ damage at the subsequent visit. Serum IL-1β levels were not significantly elevated in SLE patients when compared to HCs and had no association with overall or organ-specific disease activity or organ damage in cross-sectional and longitudinal analyses. Our data suggest that serum IL-18 and IL-1β have different clinical implications in SLE, with IL-18 being potentially associated with active renal disease.
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Affiliation(s)
- Rachel Mende
- Rheumatology Research Group, Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Fabien B Vincent
- Rheumatology Research Group, Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Rangi Kandane-Rathnayake
- Rheumatology Research Group, Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Rachel Koelmeyer
- Rheumatology Research Group, Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Emily Lin
- Rheumatology Research Group, Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Janet Chang
- Rheumatology Research Group, Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Alberta Y Hoi
- Rheumatology Research Group, Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Eric F Morand
- Rheumatology Research Group, Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - James Harris
- Rheumatology Research Group, Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Tali Lang
- Rheumatology Research Group, Centre for Inflammatory Diseases, School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
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16
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Dose of Retroviral Infection Determines Induction of Antiviral NK Cell Responses. J Virol 2017; 91:JVI.01122-17. [PMID: 28904191 PMCID: PMC5660477 DOI: 10.1128/jvi.01122-17] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 09/01/2017] [Indexed: 02/07/2023] Open
Abstract
Natural killer (NK) cells are part of the innate immune system and recognize virus-infected cells as well as tumor cells. Conflicting data about the beneficial or even detrimental role of NK cells in different infectious diseases have been described previously. While the type of pathogen strongly influences NK cell functionality, less is known about how the infection dose influences the quality of a NK cell response against retroviruses. In this study, we used the well-established Friend retrovirus (FV) mouse model to investigate the impact of virus dose on the induction of antiviral NK cell functions. High-dose virus inoculation increased initial virus replication compared to that with medium- or low-dose viral challenge and significantly improved NK cell activation. Antiviral NK cell activity, including in vivo cytotoxicity toward infected target cells, was also enhanced by high-dose virus infection. NK cell activation following high-dose viral challenge was likely mediated by activated dendritic cells (DCs) and macrophages and the NK cell-stimulating cytokines interleukin 15 (IL-15) and IL-18. Neutralization of these cytokines decreased NK cell functions and increased viral loads, whereas IL-15 and IL-18 therapy improved NK cell activity. Here we demonstrate that virus dose positively correlates with antiviral NK cell activity and function, which are at least partly driven by IL-15 and IL-18. Our results suggest that NK cell activity may be therapeutically enhanced by administering IL-15 and IL-18 in virus infections that inadequately activate NK cells. IMPORTANCE In infections with retroviruses, like HIV and FV infection of mice, NK cells clearly mediate antiviral activities, but they are usually not sufficient to prevent severe pathology. Here we show that the initial infection dose impacts the induction of an antiviral NK cell response during an acute retroviral infection, which had not investigated before. High-dose infection resulted in a strong NK cell functionality, whereas no antiviral activities were detected after low- or medium-dose infection. Interestingly, DCs and macrophages were highly activated after high-dose FV challenge, which corresponded with increased levels of NK cell-stimulating cytokines IL-15 and IL-18. IL-15 and IL-18 neutralization decreased NK cell functions, whereas IL-15 and IL-18 therapy improved NK cell activity. Here we show the importance of cytokines for NK cell activation in retroviral infections; our findings suggest that immunotherapy combining the well-tolerated cytokines IL-15 and IL-18 might be an interesting approach for antiretroviral treatment.
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Zhang C, Bi Y, Jin G, Gan H, Yu L. High and fluctuating glucose levels increase the expression and secretion of interleukin‑18 in mouse peritoneal macrophages. Mol Med Rep 2015; 12:2715-20. [PMID: 25955000 DOI: 10.3892/mmr.2015.3753] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 03/09/2015] [Indexed: 11/06/2022] Open
Abstract
Macrophages are involved in the progression of atherosclerosis by releasing pro-inflammatory cytokines. High levels of interleukin (IL)-18 are associated with an increased risk of developing diabetes and atherosclerosis. The present study aimed to investigate the association between IL-18, and high and fluctuating glucose levels in mouse peritoneal macrophages (MPMs), and to assess the involvement of the c-Jun N-terminal kinase (JNK) pathway in this association. The MPMs were exposed to 4, 8, 16, 24 and 32 mM glucose for 6 h, which was alternated to either 4/24 mM glucose every 1.5 h for 6 h, or to 32 mM glucose for 3, 6, 12 and 18 h. The expression and secretion levels of IL-18 were detected using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and ELISA, respectively. High levels of glucose increased the expression and secretion levels of IL-18 in a dose-dependent manner (P<0.05, vs. 4 mM glucose). This increase was more important in the cells exposed to fluctuating 4/24 mM glucose every 1.5 h compared with the cells exposed to stable 24 mM glucose (RT-qPCR, 0.78 ± 0.05, vs. 0.66 ± 0.07; ELISA, 188.23 ± 20.32, vs. 143.16 ± 13.07 pg/ml; P<0.05). The expression and secretion levels of IL-18 increased 8 and 12 h following exposure to high-glucose, and then decreased at 18 h (P<0.05, vs. 3 h). Furthermore, SP600125, a JNK inhibitor, decreased the high-glucose-induced gene expression of IL-18 in a dose-dependent manner. Therefore, high and fluctuating levels of glucose may be associated with inflammation and diabetic atherosclerosis by regulating the expression levels of IL-18. The present study identified the JNK signaling pathway as one of the mechanisms underlying this association. Targeting IL-18 may be a novel therapeutic approach against diabetes-associated atherosclerosis.
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Affiliation(s)
- Chenchen Zhang
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233020, P.R. China
| | - Yaxin Bi
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233020, P.R. China
| | - Guoxi Jin
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233020, P.R. China
| | - Huaiyong Gan
- Department of Pathology, Bengbu Medical College, Bengbu, Anhui 233020, P.R. China
| | - Lei Yu
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233020, P.R. China
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18
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Gandhapudi SK, Tan C, Marino JH, Taylor AA, Pack CC, Gaikwad J, Van De Wiele CJ, Wren JD, Teague TK. IL-18 acts in synergy with IL-7 to promote ex vivo expansion of T lymphoid progenitor cells. THE JOURNAL OF IMMUNOLOGY 2015; 194:3820-8. [PMID: 25780034 DOI: 10.4049/jimmunol.1301542] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Accepted: 02/13/2015] [Indexed: 11/19/2022]
Abstract
Although IL-18 has not previously been shown to promote T lymphopoiesis, results obtained via a novel data mining algorithm (global microarray meta-analysis) led us to explore a predicted role for this cytokine in T cell development. IL-18 is a member of the IL-1 cytokine family that has been extensively characterized as a mediator of inflammatory immune responses. To assess a potential role for IL-18 in T cell development, we sort-purified mouse bone marrow-derived common lymphoid progenitor cells, early thymic progenitors (ETPs), and double-negative 2 thymocytes and cultured these populations on OP9-Delta-like 4 stromal layers in the presence or absence of IL-18 and/or IL-7. After 1 wk of culture, IL-18 promoted proliferation and accelerated differentiation of ETPs to the double-negative 3 stage, similar in efficiency to IL-7. IL-18 showed synergy with IL-7 and enhanced proliferation of both the thymus-derived progenitor cells and the bone marrow-derived common lymphoid progenitor cells. The synergistic effect on the ETP population was further characterized and found to correlate with increased surface expression of c-Kit and IL-7 receptors on the IL-18-treated cells. In summary, we successfully validated the global microarray meta-analysis prediction that IL-18 affects T lymphopoiesis and demonstrated that IL-18 can positively impact bone marrow lymphopoiesis and T cell development, presumably via interaction with the c-Kit and IL-7 signaling axis.
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Affiliation(s)
- Siva K Gandhapudi
- Department of Surgery, University of Oklahoma School of Community Medicine, Tulsa, OK 74104
| | - Chibing Tan
- Department of Surgery, University of Oklahoma School of Community Medicine, Tulsa, OK 74104
| | - Julie H Marino
- Department of Surgery, University of Oklahoma School of Community Medicine, Tulsa, OK 74104
| | - Ashlee A Taylor
- Department of Surgery, University of Oklahoma School of Community Medicine, Tulsa, OK 74104
| | - Christopher C Pack
- Department of Surgery, University of Oklahoma School of Community Medicine, Tulsa, OK 74104
| | - Joel Gaikwad
- Department of Biological Sciences, Oral Roberts University, Tulsa, OK 74171
| | - C Justin Van De Wiele
- Department of Surgery, University of Oklahoma School of Community Medicine, Tulsa, OK 74104; Department of Pharmaceutical Sciences, University of Oklahoma College of Pharmacy, Tulsa, OK 74135
| | - Jonathan D Wren
- Department of Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104; Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104;
| | - T Kent Teague
- Department of Surgery, University of Oklahoma School of Community Medicine, Tulsa, OK 74104; Department of Pharmaceutical Sciences, University of Oklahoma College of Pharmacy, Tulsa, OK 74135; Department of Psychiatry, University of Oklahoma School of Community Medicine, Tulsa, OK 74104; and Department of Biochemistry and Microbiology, Oklahoma State University Center for the Health Sciences, Tulsa, OK 74107
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Li H, Xuan M, Xue F, Liu X, Zhang D, Fu R, Yang Y, Zhang X, Yang R. Absence of association of interleukin-18 gene polymorphisms with primary immune thrombocytopenia in a Chinese Han population. DNA Cell Biol 2014; 33:537-42. [PMID: 24742099 DOI: 10.1089/dna.2013.2247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Interleukin-18 (IL-18) is an inflammatory cytokine that plays an important role in autoimmune disease by inducing interferon-γ secretion. Considering the abnormal serum concentration of IL-18 in primary immune thrombocytopenia (ITP) patients and the regulated effect of IL-18 gene polymorphisms on its production, the aim of this study was to investigate a possible association between the IL-18 promoter polymorphisms (-137 G/C and -607 C/A sites) and genetic susceptibility to ITP in a Chinese Han population. A total of 181 ITP patients and 163 healthy controls were included in this study; IL-18 gene promoter polymorphisms were analyzed by a polymerase chain reaction with sequence-specific primers. No significant differences in genotype (-607: χ(2)=0.307, p=0.858; -137: χ(2)=0.378, p=0.828) and allele frequencies (-607: χ(2)=0.004, p=0.949; -137: χ(2)=0.307, p=0.858) were found between total ITP patients and normal controls. We further analyzed the association of IL-18 polymorphisms with clinical parameters of ITP patients, including first onset age and clinical therapy response to glucocorticoids, and no difference was revealed. In conclusion, IL-18 promoter polymorphisms may not be associated with genetic susceptibility to ITP in a Chinese Han population.
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Affiliation(s)
- Huiyuan Li
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Tianjin, People's Republic of China
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20
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Camilio KA, Berge G, Ravuri CS, Rekdal O, Sveinbjørnsson B. Complete regression and systemic protective immune responses obtained in B16 melanomas after treatment with LTX-315. Cancer Immunol Immunother 2014; 63:601-13. [PMID: 24676901 PMCID: PMC4024132 DOI: 10.1007/s00262-014-1540-0] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 03/13/2014] [Indexed: 12/31/2022]
Abstract
Malignant melanoma is the most aggressive and deadliest form of skin cancer due to its highly metastatic potential, which calls for new and improved therapies. Cationic antimicrobial peptides (CAPs) are naturally occurring molecules found in most species, in which they play a significant role in the first line of defense against pathogens, and several CAPs have shown promising potential as novel anticancer agents. Structure-activity relationship studies on the CAP bovine lactoferricin allowed us to de novo design short chemically modified lytic anticancer peptides. In the present study, we investigated the in vivo antitumor effects of LTX-315 against intradermally established B16 melanomas in syngeneic mice. Intratumoral administration of LTX-315 resulted in tumor necrosis and the infiltration of immune cells into the tumor parenchyma followed by complete regression of the tumor in the majority of the animals. LTX-315 induced the release of danger-associated molecular pattern molecules such as the high mobility group box-1 protein in vitro and the subsequent upregulation of proinflammatory cytokines such as interleukin (IL) 1β, IL6 and IL18 in vivo. Animals cured by LTX-315 treatment were protected against a re-challenge with live B16 tumor cells both intradermally and intravenously. Together, our data indicate that intratumoral treatment with LTX-315 can provide local tumor control followed by protective immune responses and has potential as a new immunotherapeutic agent.
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21
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Takenaka SI, Kawayama T, Imaoka H, Sakazaki Y, Oda H, Kaku Y, Matsuoka M, Okamoto M, Kato S, Yamada K, Hoshino T. The progression of comorbidity in IL-18 transgenic chronic obstructive pulmonary disease mice model. Biochem Biophys Res Commun 2014; 445:597-601. [DOI: 10.1016/j.bbrc.2014.02.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Accepted: 02/11/2014] [Indexed: 01/30/2023]
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22
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Ogata A, Kitano M, Fukamizu M, Hamano T, Sano H. Increased serum interleukin-18 in a patient with systemic lupus erythematosus and T-cell large granular lymphocytic leukemia. Mod Rheumatol 2014. [DOI: 10.3109/s10165-004-0306-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Oda H, Kawayama T, Imaoka H, Sakazaki Y, Kaku Y, Okamoto M, Kitasato Y, Edakuni N, Takenaka SI, Yoshida M, Iwanaga T, Kato S, O'Byrne PM, Hoshino T. Interleukin-18 expression, CD8(+) T cells, and eosinophils in lungs of nonsmokers with fatal asthma. Ann Allergy Asthma Immunol 2013; 112:23-28.e1. [PMID: 24331389 DOI: 10.1016/j.anai.2013.09.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 08/26/2013] [Accepted: 09/01/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND The process of airway inflammation in the lungs of nonsmokers who die of asthma (fatal asthma) has not been reported in detail. OBJECTIVE To examine nonsmokers who had died of asthma to exclude chronic obstructive pulmonary disease and investigate pulmonary inflammatory cells and the expression of interleukin-18 (IL-18) and its receptor in lung tissues compared with those in patients with well-controlled mild asthma and nonsmokers. METHODS Lung tissues were obtained at autopsy examination from 12 nonsmokers with fatal asthma, excluding cases of chronic obstructive pulmonary disease, and from 5 nonsmokers with well-controlled mild asthma and 10 nonsmokers who had undergone surgical resection for lung cancer. Pulmonary inflammatory cells were examined and the expression of the proinflammatory cytokine IL-18 and its receptor in the lungs was evaluated. RESULTS The numbers of eosinophils and lymphocytes, but not basophils or macrophages, were significantly increased in the lungs of patients with fatal asthma compared with the other 2 groups. The lung neutrophil count did not differ significantly between the fatal and mild asthma groups but was significantly higher in the fatal asthma group than in nonsmokers. CD8(+) T cells, but not CD4(+) T cells, were significantly increased in the lungs of the fatal asthma group compared with the other 2 groups. IL-18 protein and IL-18 receptor were strongly expressed in the lungs in the fatal asthma group. CONCLUSION Caspase-1 inhibitors, anti-IL-18 antibodies, anti-IL-18 receptor antibodies, IL-18 binding protein, or inhibitors of genes downstream of the IL-18 signal transduction pathway may be of clinical benefit for the treatment of patients with severe asthma.
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Affiliation(s)
- Hanako Oda
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Kurume, Japan
| | - Tomotaka Kawayama
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Kurume, Japan
| | - Haruki Imaoka
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Kurume, Japan
| | - Yuki Sakazaki
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Kurume, Japan
| | - Yoichiro Kaku
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Kurume, Japan
| | - Masaki Okamoto
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Kurume, Japan
| | - Yasuhiko Kitasato
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Kurume, Japan
| | - Nobutaka Edakuni
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Kurume, Japan
| | - Shin-Ichi Takenaka
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Kurume, Japan
| | | | | | - Seiya Kato
- Division of Pathology and Cell Biology, Graduate School and Faculty of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Paul M O'Byrne
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Tomoaki Hoshino
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Kurume, Japan.
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25
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Sawada M, Kawayama T, Imaoka H, Sakazaki Y, Oda H, Takenaka SI, Kaku Y, Azuma K, Tajiri M, Edakuni N, Okamoto M, Kato S, Hoshino T. IL-18 induces airway hyperresponsiveness and pulmonary inflammation via CD4+ T cell and IL-13. PLoS One 2013; 8:e54623. [PMID: 23382928 PMCID: PMC3558507 DOI: 10.1371/journal.pone.0054623] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Accepted: 12/13/2012] [Indexed: 11/19/2022] Open
Abstract
IL-18 plays a key role in the pathogenesis of pulmonary inflammatory diseases including pulmonary infection, pulmonary fibrosis, lung injury and chronic obstructive pulmonary disease (COPD). However, it is unknown whether IL-18 plays any role in the pathogenesis of asthma. We hypothesized that overexpression of mature IL-18 protein in the lungs may exacerbate disease activities of asthma. We established lung-specific IL-18 transgenic mice on a Balb/c genetic background. Female mice sensitized– and challenged– with antigen (ovalbumin) were used as a mouse asthma model. Pulmonary inflammation and emphysema were not observed in the lungs of naïve transgenic mice. However, airway hyperresponsiveness and airway inflammatory cells accompanied with CD4+ T cells, CD8+ T cells, eosinophils, neutrophils, and macrophages were significantly increased in ovalbumin-sensitized and challenged transgenic mice, as compared to wild type Balb/c mice. We also demonstrate that IL-18 induces IFN-γ, IL-13, and eotaxin in the lungs of ovalbumin-sensitized and challenged transgenic mice along with an increase in IL-13 producing CD4+ T cells. Treatment with anti-CD4 monoclonal antibody or deletion of the IL-13 gene improves ovalbumin-induced airway hyperresponsiveness and reduces airway inflammatory cells in transgenic mice. Overexpressing the IL-18 protein in the lungs induces type 1 and type 2 cytokines and airway inflammation, and results in increasing airway hyperresponsiveness via CD4+ T cells and IL-13 in asthma.
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Affiliation(s)
- Masanori Sawada
- Division of Respirology, Neurology and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Fukuoka, Japan
| | - Tomotaka Kawayama
- Division of Respirology, Neurology and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Fukuoka, Japan
| | - Haruki Imaoka
- Division of Respirology, Neurology and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Fukuoka, Japan
| | - Yuki Sakazaki
- Division of Respirology, Neurology and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Fukuoka, Japan
| | - Hanako Oda
- Division of Respirology, Neurology and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Fukuoka, Japan
| | - Shin-ichi Takenaka
- Division of Respirology, Neurology and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Fukuoka, Japan
| | - Yoichiro Kaku
- Division of Respirology, Neurology and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Fukuoka, Japan
| | - Koichi Azuma
- Division of Respirology, Neurology and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Fukuoka, Japan
| | - Morihiro Tajiri
- Division of Respirology, Neurology and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Fukuoka, Japan
| | - Nobutaka Edakuni
- Division of Respirology, Neurology and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Fukuoka, Japan
| | - Masaki Okamoto
- Division of Respirology, Neurology and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Fukuoka, Japan
| | - Seiya Kato
- Division of Pathology and Cell Biology, Graduate School and Faculty of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Tomoaki Hoshino
- Division of Respirology, Neurology and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Fukuoka, Japan
- * E-mail:
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Affiliation(s)
- Mohamed Lamkanfi
- Department of Biochemistry, Ghent University, Ghent 9000, Belgium
- Department of Medical Protein Research, VIB, Ghent 9000, Belgium;
| | - Vishva M. Dixit
- Department of Physiological Chemistry, Genentech, South San Francisco, California 94080;
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Birbian N, Singh J, Jindal SK. Protective role of IL-18 -137G/C polymorphism in a North Indian population with asthma: a pilot study. Cytokine 2012; 61:188-93. [PMID: 23085113 DOI: 10.1016/j.cyto.2012.09.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 09/06/2012] [Accepted: 09/20/2012] [Indexed: 10/27/2022]
Abstract
BACKGROUND IL-18, a pleiotropic, pro-inflammatory cytokine that plays a major role in innate as well as acquired immunity, has been implicated in asthma etiology and this is the first study investigating the role of IL-18 -137G/C (rs 187238) promoter polymorphism in asthma pathogenesis in a North Indian population. METHODS A pilot study was conducted with a total of 824 subjects, out of which 410 were asthma patients including 323 patients suffering from allergic rhinitis and 414 healthy controls from regions of North India. Tetra-Primer Amplification Refractory Mutation System Polymerase Chain Reaction (Tetra-Primer ARMS PCR) was used for genotyping the IL-18 -137G/C polymorphism. RESULTS While the homozygous wild (GG) genotype was equally prevalent in asthma patients as well as control subjects (70.0%), the homozygous mutant (CC) genotype was more prevalent among the controls (8.0%) than in asthma patients (3.4%), which yielded a significant protection or decreased risk towards asthma. Statistical analysis revealed Odds Ratio (OR)=0.43 (95% CI=0.21-0.85), Chi2 (χ2)=6.93 and p-value=0.008 (p<0.005). Moreover, a few asthma phenotypic traits also revealed significant protective associations with the polymorphism. CONCLUSIONS The IL-18 -137G/C polymorphism confers a significant protection from asthma in the studied North Indian population. This is the first study to report the protective association of the polymorphism with the disease.
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Affiliation(s)
- Niti Birbian
- Department of Biotechnology, Panjab University, Chandigarh, India.
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Bockorny B, Dasanu CA. Autoimmune manifestations in large granular lymphocyte leukemia. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2012; 12:400-5. [PMID: 22999943 DOI: 10.1016/j.clml.2012.06.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 05/17/2012] [Accepted: 06/15/2012] [Indexed: 12/16/2022]
Abstract
Large granular lymphocyte (LGL) leukemia features a group of indolent lymphoproliferative diseases that display a strong association with various autoimmune conditions. Notwithstanding, these autoimmune conditions have not been comprehensively characterized or systematized to date. As a result, their clinical implications remain largely unknown. The authors offer a comprehensive review of the existing literature on various autoimmune conditions documented in the course of T-cell LGL (T-LGL) leukemia. Though some of them are thought be secondary to the LGL leukemia, others could be primary and might even play a role in its pathogenesis. A considerable clinico-laboratory overlap between T-LGL leukemia associated with rheumatoid arthritis and Felty's syndrome suggests that they are just different eponyms for the same clinical entity.
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Affiliation(s)
- Bruno Bockorny
- Department of Medicine, University of Connecticut Medical Center, Farmington, CT 06030-1235, USA.
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Genes of the interleukin-18 pathway are associated with susceptibility to Barrett's esophagus and esophageal adenocarcinoma. Am J Gastroenterol 2012; 107:1331-41. [PMID: 22664470 DOI: 10.1038/ajg.2012.134] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES To investigate the association of genetic polymorphisms of the interleukin-18 (IL-18) pathway to Barrett's esophagus (BE) and esophageal adenocarcinoma (EAC). Most cases of EAC arise in a background of reflux-induced BE. Genetic influences in this pathway are poorly understood. IL-18 is a multifunctional cytokine implicated in anti-tumor immunity. A number of polymorphisms of the IL-18 and IL-18 receptor-accessory protein (IL-18RAP) genes have been reported to alter gene expression and have recently been linked to inflammatory processes and various tumors, but have not heretofore been studied in BE and EAC. METHODS Two IL-18 promoter polymorphisms -137 G/C and -607 C/A, (rs187238 and rs1946518) and one IL-18RAP polymorphism (rs917997, C/T) were analyzed. Each single-nucleotide polymorphism (SNP) was genotyped in the following groups: EAC, BE, reflux esophagitis (RE), and controls and analyzed for association with disease status. RESULTS The IL-18RAP rs917997C allele is strongly associated with a protective effect in BE (P = 0.0002) and EAC (P = 6 × 10(-7)), which approaches genome-wide levels of significance for allele association without incurring significant multiple testing. The CC genotype at IL-18RAP locus rs917997 was associated with a protective effect against esophageal disease (P = 6 × 10(-4), odds ratio (OR) = 0.59, and 95% confidence interval (CI) 0.43-0.80 for BE; and P = 2 × 10(-6), OR = 0.46, and 95% CI 0.34-0.64 for EAC). The genotype frequencies of IL-18-607 C/A were weakly associated with BE (P = 0.02), and this trend was also seen between controls and EAC (P = 0.07). The CC genotype was associated with an increased risk of BE (OR = 1.45, 95% CI 1.07-1.98) and approached significance for EAC (OR = 1.34, 95% CI 0.98-1.82). Allele and genotype frequencies at these loci were not significantly different between the RE group and controls. Although no significant association was observed between the disease groups at the -137 G/C locus, the -137G/-607C haplotype was associated with increased risk of BE (P = 0.006) with haplotype frequencies of 55% in controls and 65% in BE. CONCLUSIONS These data show a strong association of the IL-18RAP SNP rs917997 locus with BE and EAC and suggestive association of the Barrett's population with the IL-18-607 C/A promoter polymorphism. As both of these SNPs have been demonstrated as expression quantitative trait loci affecting expression of the respective genes, this strongly implicates IL-18 signaling in susceptibility to BE and EAC.
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Kawayama T, Okamoto M, Imaoka H, Kato S, Young HA, Hoshino T. Interleukin-18 in pulmonary inflammatory diseases. J Interferon Cytokine Res 2012; 32:443-9. [PMID: 22900713 DOI: 10.1089/jir.2012.0029] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The proinflammatory cytokine interleukin (IL)-18 was originally discovered as an interferon-γ-inducing factor in 1995. IL-18 is known to play an important role in Th1/Tc1 polarization and promoting the production of Th2 cytokines (e.g., IL-4, IL-5, IL-9, and IL-13) by T cells, NK cells, basophils, and mast cells. IL-18 can act as a cofactor for Th2 cell development and IgE production, and also plays an important role in the differentiation of Th17 cells. IL-18 is a key player in the pathogenesis of inflammatory diseases such as atopic dermatitis, rheumatoid arthritis, adult-onset Still's disease, Sjögren's syndrome, and inflammatory bowel diseases. Furthermore, many lines of evidence suggest that IL-18 plays a key role in the pathogenesis of pulmonary inflammatory diseases, including bronchial asthma and chronic obstructive pulmonary disease. Here, we review the pathological roles of IL-18 in pulmonary inflammatory diseases.
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Affiliation(s)
- Tomotaka Kawayama
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine 1, Kurume University School of Medicine, Kurume, Fukuoka, Japan
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31
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Dextran sodium sulphate colitis mouse model: traps and tricks. J Biomed Biotechnol 2012; 2012:718617. [PMID: 22665990 PMCID: PMC3361365 DOI: 10.1155/2012/718617] [Citation(s) in RCA: 611] [Impact Index Per Article: 50.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Accepted: 03/05/2012] [Indexed: 12/13/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a complex multifactorial disease of unknown etiology. Thus, dozens of different animal models of IBD have been developed in past decades. Animal models of IBD are valuable and indispensable tools that provide a wide range of options for investigating involvement of various factors into the pathogenesis of IBD and to evaluate different therapeutic options. However, the dextran sulphate sodium (DSS-) induced colitis model has some advantages when compared to other animal models of colitis. It is well appreciated and widely used model of inflammatory bowel disease because of its simplicity. It has many similarities to human IBD, which are mentioned in the paper. In spite of its simplicity and wide applicability, there are also traps that need to be taken into account when using DSS model. As demonstrated in the present paper, various factors may affect susceptibility to DSS-induced lesions and modify results.
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Abstract
Inflammasomes are multi-protein complexes that sense microbial molecules and endogenous danger signals in intracellular compartments. Inflammasome assembly results in caspase-1 activation, which in turn drives maturation and secretion of the pro-inflammatory cytokines interleukin 1β (IL-1β) and IL-18, and induces pyroptosis to eliminate the infectious agent. The importance of inflammasomes in regulating immune responses was recognized with the discovery of polymorphisms in genes encoding inflammasome components and their linkage to aberrant production of IL-1β and IL-18 in autoimmune and hereditary periodic fevers syndromes. We review the current knowledge on the role of inflammasomes in regulating innate and adaptive immune responses with an emphasis on the role of these immune complexes in autoinflammatory disorders and autoimmune diseases such as colitis, type I diabetes, multiple sclerosis and vitiligo.
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Ming L, Wen Q, Qiao HL, Dong ZM. Interleukin-18 and IL18 -607A/C and -137G/C gene polymorphisms in patients with penicillin allergy. J Int Med Res 2011; 39:388-98. [PMID: 21672342 DOI: 10.1177/147323001103900206] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
This study investigated the association between polymorphisms (-607A/C and -137G/C) in the promoter region of the IL18 gene (which encodes interleukin [IL]-18) and serum levels of IL-18, using standard genotyping techniques (sequence specific primer-polymerase chain reaction) and an enzyme-linked immunosorbent assay, respectively, in patients allergic to penicillin. A higher frequency of A alleles and the AA genotype was found at position -607A/C in patients allergic to penicillin than in control subjects. For the -137G/C position, the C allele was more frequent in patients allergic to penicillin than in control subjects. Haplotype analysis showed that the -607A/-137C haplotype was more frequent in patients allergic to penicillin than in control subjects. The patients had a significantly higher serum IL-18 level than the control subjects. In conclusion, IL18 -607A/C and -137G/C promoter polymorphisms are associated with susceptibility to penicillin allergy. In particular, the -137G/C position appears to play an important role in IL18 expression.
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Affiliation(s)
- L Ming
- Department of Clinical Pharmacology, School of Medicine, Zhengzhou University, Zhengzhou, Henan, China
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34
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Sakazaki Y, Hoshino T, Takei S, Sawada M, Oda H, Takenaka SI, Imaoka H, Matsunaga K, Ota T, Abe Y, Miki I, Fujimoto K, Kawayama T, Kato S, Aizawa H. Overexpression of chitinase 3-like 1/YKL-40 in lung-specific IL-18-transgenic mice, smokers and COPD. PLoS One 2011; 6:e24177. [PMID: 21915293 PMCID: PMC3168485 DOI: 10.1371/journal.pone.0024177] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Accepted: 08/02/2011] [Indexed: 11/19/2022] Open
Abstract
We analyzed the lung mRNA expression profiles of a murine model of COPD developed using a lung-specific IL-18-transgenic mouse. In this transgenic mouse, the expression of 608 genes was found to vary more than 2-fold in comparison with control WT mice, and was clustered into 4 groups. The expression of 140 genes was constitutively increased at all ages, 215 genes increased gradually with aging, 171 genes decreased gradually with aging, and 82 genes decreased temporarily at 9 weeks of age. Interestingly, the levels of mRNA for the chitinase-related genes chitinase 3-like 1 (Chi3l1), Chi3l3, and acidic mammalian chitinase (AMCase) were significantly higher in the lungs of transgenic mice than in control mice. The level of Chi3l1 protein increased significantly with aging in the lungs and sera of IL-18 transgenic, but not WT mice. Previous studies have suggested Chi3l3 and AMCase are IL-13-driven chitinase-like proteins. However, IL-13 gene deletion did not reduce the level of Chi3l1 protein in the lungs of IL-18 transgenic mice. Based on our murine model gene expression data, we analyzed the protein level of YKL-40, the human homolog of Chi3l1, in sera of smokers and COPD patients. Sixteen COPD patients had undergone high resolution computed tomography (HRCT) examination. Emphysema was assessed by using a density mask with a cutoff of -950 Hounsfield units to calculate the low-attenuation area percentage (LAA%). We observed significantly higher serum levels in samples from 28 smokers and 45 COPD patients compared to 30 non-smokers. In COPD patients, there was a significant negative correlation between serum level of YKL-40 and %FEV(1). Moreover, there was a significant positive correlation between the serum levels of YKL-40 and LAA% in COPD patients. Thus our results suggest that chitinase-related genes may play an important role in establishing pulmonary inflammation and emphysematous changes in smokers and COPD patients.
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Affiliation(s)
- Yuki Sakazaki
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Tomoaki Hoshino
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Satoko Takei
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Masanori Sawada
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Hanako Oda
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Shin-ichi Takenaka
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Haruki Imaoka
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Kazuko Matsunaga
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Toshio Ota
- Drug Discovery Research Laboratories, Kyowa Hakko Kirin Co., Ltd., Shizuoka, Japan
| | - Yuzuru Abe
- Drug Discovery Research Laboratories, Kyowa Hakko Kirin Co., Ltd., Shizuoka, Japan
| | - Ichiro Miki
- Drug Discovery Research Laboratories, Kyowa Hakko Kirin Co., Ltd., Shizuoka, Japan
| | - Kiminori Fujimoto
- Department of Radiology and Center for Diagnostic Imaging, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Tomotaka Kawayama
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Seiya Kato
- Division of Pathology and Cell Biology, Graduate School and Faculty of Medicine, University of the Ryukyus, Nishihara, Okinawa, Japan
| | - Hisamichi Aizawa
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
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Zhang G, Jing X, Wang X, Shi W, Sun P, Su C, Zhu M, Yang Z, Yao Z, Yang J. Contribution of the proinflammatory cytokine IL-18 in the formation of human nasal polyps. Anat Rec (Hoboken) 2011; 294:953-60. [PMID: 21538928 DOI: 10.1002/ar.21385] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Accepted: 02/19/2011] [Indexed: 12/25/2022]
Abstract
Nasal polyposis is a chronic inflammatory disease of the nasal mucosa. The etiology and the mechanisms of formation of nasal polyps are still not clear. Interleukin (IL)-18 is a novel proinflammatory cytokine that plays important roles in regulating immune inflammatory responses. However, the presence of IL-18 in human nasal mucosa and its roles in the inflammatory process of nasal polyps has not been studied yet. In this study, it was the first time to investigate the expression of IL-18 in human nasal mucosa and nasal polyps, and its potential function in the formation of nasal polyps. Surgical samples were analyzed by Western blot and immunohistochemistry to evaluate the expression and location of IL-18, and its correlated cytokines, IL-4, and IFN-γ. Furthermore, the airway epithelial cell line, A549, was used to investigate the mutual regulation of IFN-γ, IL-4, and IL-18. IFN-γ, IL-4, and IL-18 were all highly expressed in the epithelial cells, submucosal glands, and infiltrating inflammatory cells in the nasal polyp tissues, comparing with the control samples. Especially, the expression of IL-18 was upregulated significantly in nasal polyp tissues compared with control tissues. In addition, IL-18 was expressed in A549 cells in response to lipopolysaccharide and IL-4. Our data suggest that nasal epithelial cells are involved in the pathogenesis of nasal polyps formation and potentially via the secretion of IL-18, which is likely to play important roles in the formation of nasal polyps.
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Affiliation(s)
- Guimin Zhang
- Department of Immunology, Basic Medical College, Tianjin Medical University, Tianjin, People's Republic of China
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Abstract
Caspase 1 activation by inflammasome complexes in response to pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs) induces the maturation and secretion of the pro-inflammatory cytokines interleukin-1β (IL-1β) and IL-18. Recent reports have begun to identify additional inflammasome effector mechanisms that proceed independently of IL-1β and IL-18. These include the induction of pyroptotic cell death, the restriction of bacterial replication, the activation of lipid metabolic pathways for cell repair and the secretion of DAMPs and leaderless cytokines. These non-canonical functions of caspase 1 illustrate the diverse mechanisms by which inflammasomes might contribute to innate immunity, repair responses and host defence.
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Takei S, Hoshino T, Matsunaga K, Sakazaki Y, Sawada M, Oda H, Takenaka SI, Imaoka H, Kinoshita T, Honda S, Ida H, Fukuda TA, Aizawa H. Soluble interleukin-18 receptor complex is a novel biomarker in rheumatoid arthritis. Arthritis Res Ther 2011; 13:R52. [PMID: 21435242 PMCID: PMC3132041 DOI: 10.1186/ar3295] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2010] [Revised: 02/23/2011] [Accepted: 03/24/2011] [Indexed: 12/25/2022] Open
Abstract
Introduction There has been no report in the literature of a soluble form of interleukin (IL)-18 receptor α (IL-18Rα). In this study, we evaluated the levels and characteristics of soluble IL-18Rα (sIL-18Rα) in the sera of patients with rheumatoid arthritis (RA) and compared these results to control populations. Methods The sIL-18Rα complex was isolated from pooled human blood serum using an anti-IL-18Rα monoclonal antibody affinity column. The purified sIL-18Rα was then examined using Western blot analysis and used in experiments to evaluate the effects on an IL-18-responsive natural killer (NK) human cell line, NK0. An enzyme-linked immunosorbent assay was developed, and sera from 145 patients with RA, 6 patients with adult-onset Still's disease, 31 patients with osteoarthritis (OA), 39 patients with systemic lupus erythematosus (SLE) and 67 controls were tested, along with levels of immunoglobulin M, rheumatoid factor, anticyclic citrullinated peptide antibody, IL-18, IL-13 and interferon (IFN)-γ. Area under the receiver operating characteristic curve (ROC-AUC) analysis was used to evaluate the diagnostic utility of the sIL-18Rα complex. Results The isolated sIL-18Rα complex can be associated with IL-18 and the soluble form of the IL-18Rβ chain. The sIL-18Rα complex bound to the surface to the NK0 cell line, antagonized the stimulatory effects of IL-18 and IL-2 on the NK0 cell line and inhibited IFN-γ production by the cells. The serum levels of sIL-18Rα complex in RA (186.0 ± 33.5 ng/mL, n = 145) and adult-onset Still's disease (98.2 ± 8.9 ng/mL, n = 6) were significantly (P < 0.001) higher than those in the healthy controls (52.3 ± 8.5 ng/mL, n = 67), OA (38.6 ± 5.4 ng/mL, n = 31), SLE (44.6 ± 3.2 ng/mL, n = 39). The serum level of sIL-18Rα complex was not significantly different between RA and adult-onset Still's disease patients. The serum levels of IL-18, IL-13 and IFN-γ in the RA patients were significantly (P < 0.01) higher than in OA and SLE patients as well as healthy controls. ROC-AUC analysis of the serum concentration of sIL-18Rα indicated that it was significantly diagnostic of RA. Moreover, a tumor necrosis factor inhibitor, etanercept, significantly (P < 0.0001) decreased levels of sIL-18Rα in the sera of 29 RA patients 6 months after treatment. Conclusions The sIL-18Rα complex could be a potentially useful biomarker for the diagnosis of RA.
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Affiliation(s)
- Satoko Takei
- Division of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, 67 Asahi-machi, Kurume, Fukuoka 830-0011, Japan
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Segawa S, Goto D, Yoshiga Y, Horikoshi M, Sugihara M, Hayashi T, Chino Y, Matsumoto I, Ito S, Sumida T. Involvement of NK 1.1-positive γδT cells in interleukin-18 plus interleukin-2-induced interstitial lung disease. Am J Respir Cell Mol Biol 2011; 45:659-66. [PMID: 21257923 DOI: 10.1165/rcmb.2010-0298oc] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Interstitial lung disease (ILD) is induced by various factors in humans. However, the exact mechanism of ILD remains elusive. This study sought to determine the role of natural killer (NK) 1.1(+) γδT cells in ILD. The injection of IL-18 plus IL-2 (IL-18/IL-2) into C57BL6 (B6) mice induced acute ILD that resembled early-stage human ILD. An accumulation of NK1.1(+) γδT cells similar to NK cells was evident in the lungs. The T Cell Receptor (TCR) Vγ and Vδ repertoires of NK1.1(+) γδT cells indicated polyclonal expansion. The expression of IL-2 receptor β (Rβ) and IL-18Rβ in NK1.1(+) γδT cells was higher than in NK1.1(-) γδT cells. IL-18/IL-2 stimulated the proliferation of NK1.1(+) γδT cells, but not NK1.1(-) γδT cells. The IL-18/IL-2-stimulated NK1.1(+) γδT cells produced higher concentrations of IFN-γ than did NK1.1(-) γδT cells. Moreover, NK1.1(+) γδT and NK1.1(-) γδT cells constituted completely different cell populations. The IL-18/IL-2-induced ILD was milder in TCRδ(-/-) and IFN-γ(-/-) mice, compared with B6 mice. Furthermore, cell-transfer experiments demonstrated that NK1.1(+) γδT cells could induce the expansion of NK cells and IFN-γ mRNA in the lung by IL-18/IL-2. Our results suggest that NK1.1(+) γδT cells function as inflammatory mediators in the early phase of IL-18/IL-2-induced ILD.
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Affiliation(s)
- Seiji Segawa
- Division of Clinical Immunology, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan
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Pang IK, Iwasaki A. Inflammasomes as mediators of immunity against influenza virus. Trends Immunol 2010; 32:34-41. [PMID: 21147034 DOI: 10.1016/j.it.2010.11.004] [Citation(s) in RCA: 118] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 11/09/2010] [Accepted: 11/10/2010] [Indexed: 10/18/2022]
Abstract
Influenza viruses infect a wide range of avian and mammalian host species including humans. Influenza viruses are a major cause of human respiratory infections and mortality. The innate immune system recognizes influenza viruses through multiple mechanisms. These include endosomal recognition through the Toll-like receptor 7 (TLR7) and cytosolic recognition through the retinoic acid inducible gene I (RIG-I). Recent studies also identified the role of nucleotide binding oligomerization domain (NOD)-like receptors (NLRs) in innate detection of influenza viruses, leading to the activation of the inflammasomes. Here, we review the cellular and molecular mechanisms by which influenza virus infection leads to inflammasome activation, and discuss the consequences of such activation in innate and adaptive immune defense against influenza viruses.
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Affiliation(s)
- Iris K Pang
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
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D’Acquisto F, Maione F, Pederzoli-Ribeil M. From IL-15 to IL-33: the never-ending list of new players in inflammation. Is it time to forget the humble aspirin and move ahead? Biochem Pharmacol 2010; 79:525-34. [DOI: 10.1016/j.bcp.2009.09.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2009] [Revised: 09/09/2009] [Accepted: 09/10/2009] [Indexed: 12/31/2022]
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Segawa S, Goto D, Yoshiga Y, Sugihara M, Hayashi T, Chino Y, Matsumoto I, Ito S, Sumida T. Inhibition of transforming growth factor-beta signalling attenuates interleukin (IL)-18 plus IL-2-induced interstitial lung disease in mice. Clin Exp Immunol 2010; 160:394-402. [PMID: 20089076 DOI: 10.1111/j.1365-2249.2010.04094.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Interstitial lung disease (ILD) is an intractable disease induced by various factors in humans. However, there is no universally effective treatment for ILD. In this study, we investigated the role of transforming growth factor (TGF)-beta signalling in the pathogenesis of ILD by using model mice. Injection of interleukin (IL)-18 plus IL-2 in C57BL6 (B6) mice resulted in acute ILD by infiltration of natural killer (NK) cells and a significant increase of TGF-beta mRNA in the lung. To examine the pathogenetic role of TGF-beta in ILD mice, we used SB-431542 (4-[4-(1,3-benzodioxol-5-yl)-5-(2-pyridinyl)-1H-imidazol-2-yl]-benzamide), which is a potent and selective inhibitor of TGF-beta receptor I (TbetaRI), also known as activin receptor-like kinase 5 (ALK5). Treatment of B6-ILD mice with SB-431542 resulted in improvement of ILD, delay in mortality, reduction of the expression of interferon (IFN)-gamma and IL-6 in the lungs. The same treatment also decreased significantly the percentage of natural killer (NK) cells in the lungs (P < 0.05) and mRNA expression levels of certain chemokines such as CCL2, CCL3, CCL4, CCL5 and CXCL10 in B6-ILD. These findings were confirmed by IL-18 plus IL-2 treatment of Smad3-deficient (Smad3(-/-)) mice (P < 0.05). Our results showed that inhibition of TGF-beta signalling reduced the percentage of NK cells and the expression of certain chemokines in the lungs, resulting in improvement of ILD. The findings suggest that TGF-beta signalling may play an important role in the pathogenesis of IL-18 plus IL-2-induced ILD in mice.
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Affiliation(s)
- S Segawa
- Division of Clinical Immunology, Doctoral Program in Clinical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
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Hoshino T, Okamoto M, Sakazaki Y, Kato S, Young HA, Aizawa H. Role of proinflammatory cytokines IL-18 and IL-1beta in bleomycin-induced lung injury in humans and mice. Am J Respir Cell Mol Biol 2009; 41:661-670. [PMID: 19265174 PMCID: PMC10283344 DOI: 10.1165/rcmb.2008-0182oc] [Citation(s) in RCA: 138] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023] Open
Abstract
Administration of several chemotherapeutic drugs, such as bleomycin, busulfan, and gefitinib, often induces lethal lung injury. However, the precise mechanisms responsible for this drug-induced lung injury are still unclear. In the present study, we examined the role of the proinflammatory cytokines IL-18 and IL-1beta in the mechanism of bleomycin-induced lung injury. We performed immunohistochemical analysis of IL-18 and IL-18 receptor (R) alpha chain expression in the lungs of five patients with bleomycin-induced lethal lung injury. Enhanced expression of both IL-18 and IL-18Ralpha was observed in the lungs of all five patients with bleomycin-induced lung injury. To support the data obtained from patient samples, the levels of IL-1beta and IL-18 mRNA and protein, pulmonary inflammation, and lung fibrosis were examined in mouse models of bleomycin-induced lung injury. Intravenous administration of bleomycin induced the expression of IL-1beta and IL-18 in the serum and lungs of wild-type C57BL/6 mice. IL-18-producing F4/80(+) neutrophils, but not CD3(+) T cells, were greatly increased in the lungs of treated mice. Moreover, bleomycin-induced lung injury was significantly attenuated in caspase-1(-/-), IL-18(-/-), and IL-18Ralpha(-/-) mice in comparison with control mice. Thus, our results provide evidence for an important role of IL-1beta and IL-18 in chemotherapy-induced lung injury.
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Affiliation(s)
- Tomoaki Hoshino
- Division of Respirology, Neurology, and Rheumatology, Department of Internal Medicine, Kurume University School of Medicine, Kurume 830-0011, Japan.
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Abstract
More than any other cytokine family, the interleukin (IL)-1 family is closely linked to the innate immune response. This linkage became evident upon the discovery that the cytoplasmic domain of the IL-1 receptor type I is highly homologous to the cytoplasmic domains of all Toll-like receptors (TLRs). Thus, fundamental inflammatory responses such as the induction of cyclooxygenase type 2, increased expression of adhesion molecules, or synthesis of nitric oxide are indistinguishable responses of both IL-1 and TLR ligands. Both families nonspecifically affect antigen recognition and lymphocyte function. IL-1beta is the most studied member of the IL-1 family because of its role in mediating autoinflammatory diseases. Although the TLR and IL-1 families evolved to assist in host defense against infection, unlike the TLR family, the IL-1 family also includes members that suppress inflammation, both specifically within the IL-1 family but also nonspecifically for TLR ligands and the innate immune response.
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Affiliation(s)
- Charles A Dinarello
- Department of Medicine, Division of Infectious Diseases, University of Colorado Denver, Aurora, Colorado 80045, USA.
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Platis A, Yu Q, Moore D, Khojeini E, Tsau P, Larson D. The effect of daily administration of IL-18 on cardiac structure and function. Perfusion 2009; 23:237-42. [PMID: 19181757 DOI: 10.1177/0267659108101511] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Recently, the cytokine Interleukin-18 (IL-18) has been shown to be increased as a result of cardiac surgery. Elevated IL-18 has been associated with neurological dysfunction, systemic inflammatory response syndrome (SIRS), and multiple organ dysfunction syndrome (MODS) post open-heart surgery. The intent of the study contained herein was to determine the effect of IL-18 administration on cardiac function and structure. Eight C57BL/6 female mice were treated daily with 0.5microg/mouse of recombinant IL-18 for 7 days. Long axis echocardiography (ECHO) measurements of the anatomical and hemodynamic function of the heart for all mice were studied 24h after the last dose. The left ventricular wet weights increased from 84 +/- 1 to 93 +/- 3 mg when comparing the placebo (n = 8) with the IL-18 groups, respectively (p = 0.01). With ECHO analysis, IL-18 significantly increased left ventricular (LV) mass, the left atrium dimensions (LA), and the left ventricular posterior wall thickness (LVPW) over the 8-day time period (p < 0.01). There was a 5-fold increase in interstitial cardiac collagen content and a 30% increase in myocyte size in the IL-18 compared with the control groups (p < 0.01). Administration of IL-18 appears to induce interstitial fibrosis and myocyte hypertrophy, resulting in increased ventricular stiffness. Thus, increased IL-18 during and post open-heart surgical procedures may induce left ventricular diastolic dysfunction and affect post-operative outcomes.
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Affiliation(s)
- A Platis
- Circulatory Sciences Graduate Perfusion Program, College of Medicine, The University of Arizona, Tucson, AZ, USA
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Palmer G, Talabot-Ayer D, Lamacchia C, Toy D, Seemayer CA, Viatte S, Finckh A, Smith DE, Gabay C. Inhibition of interleukin-33 signaling attenuates the severity of experimental arthritis. ACTA ACUST UNITED AC 2009; 60:738-49. [PMID: 19248109 DOI: 10.1002/art.24305] [Citation(s) in RCA: 255] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Interleukin-33 (IL-33; or, IL-1F11) was recently identified as the ligand of the IL-1 family receptor T1/ST2. The aim of this study was to examine IL-33 production in human and mouse joints and to investigate the role of IL-33 and T1/ST2 in experimental arthritis. METHODS IL-33 expression was examined in human synovial tissue, rheumatoid arthritis (RA) synovial fibroblasts, and arthritic mouse joints. Mice with collagen-induced arthritis (CIA) were treated with blocking anti-ST2 antibody or control antibody beginning at the onset of disease. Arthritis severity was assessed by clinical and histologic scoring. Draining lymph node (LN) cell responses were examined ex vivo, and joint messenger RNA (mRNA) was used for expression profiling. RESULTS IL-33 was highly expressed in human RA synovium. In cultured synovial fibroblasts, IL-33 expression was strongly induced by IL-1beta and/or tumor necrosis factor alpha. Furthermore, IL-33 mRNA was detected in the joints of mice with CIA and increased during the early phase of the disease. Administration of a blocking anti-ST2 antibody at the onset of disease attenuated the severity of CIA and reduced joint destruction. Anti-ST2 antibody treatment was associated with a marked decrease in interferon-gamma production as well as with a more limited reduction in IL-17 production by ex vivo-stimulated draining LN cells. Finally, RANKL mRNA levels in the joint were reduced by anti-ST2 treatment. CONCLUSION IL-33 is produced locally in inflamed joints, and neutralization of IL-33 signaling has a therapeutic effect on the course of arthritis. These observations suggest that locally produced IL-33 may contribute to the pathogenesis of joint inflammation and destruction.
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Affiliation(s)
- Gaby Palmer
- University Hospital of Geneva, and University of Geneva School of Medicine, Geneva, Switzerland
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Ozcan E, Notarangelo LD, Geha RS. Primary immune deficiencies with aberrant IgE production. J Allergy Clin Immunol 2009; 122:1054-62; quiz 1063-4. [PMID: 19084106 DOI: 10.1016/j.jaci.2008.10.023] [Citation(s) in RCA: 113] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2008] [Revised: 10/13/2008] [Accepted: 10/22/2008] [Indexed: 12/18/2022]
Abstract
IgE antibodies play a central role in the pathogenesis of atopic diseases and in host immunity against parasitic infections. IgE has potent activities on mast cells and basophils. IgE class switching is a very tightly controlled process, and serum IgE levels are very low compared with other immunoglobulin isotypes. Transcription factors that activate or inhibit the IgE gene promoter, as well as T(H)1 and T(H)2 cytokines are important in the regulation of IgE levels. Hyper-IgE syndrome; Wiskott-Aldrich syndrome; immunodysregulation, polyendocrinopathy, enteropathy, X-linked (IPEX); Omenn syndrome; and atypical complete DiGeorge syndrome are primary immune deficiencies that are associated with elevated serum IgE levels. Increased IgE levels in IPEX, Wiskott-Aldrich syndrome and Omenn syndrome are likely related to increased T(H)2 cytokine production caused by decreased a number or function of CD4(+)CD25(+)forkhead box protein P3(+) regulatory T cells. The link between signal transducer and activator of transcription 3 mutations and elevated serum IgE levels in hyper-IgE syndrome is unclear. Insight into IgE regulation provided by the study of primary immune deficiencies with elevated IgE has important implications for allergic diseases.
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Affiliation(s)
- Esra Ozcan
- Division of Immunology, Children's Hospital and Department of Pediatrics, Harvard Medical School, Boston, MA 02115, USA
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Jin HG, Yamashita H, Nakamura T, Fukuba H, Takahashi T, Hiji M, Kohriyama T, Matsumoto M. Synphilin-1 transgenic mice exhibit mild motor impairments. Neurosci Lett 2008; 445:12-7. [PMID: 18782602 DOI: 10.1016/j.neulet.2008.08.073] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2008] [Revised: 08/24/2008] [Accepted: 08/27/2008] [Indexed: 11/28/2022]
Abstract
Synphilin-1 represents a cytoplasmic protein that interacts with alpha-synuclein and localizes close to synaptic vesicles. The interaction of synphilin-1 with several proteins involved in Parkinson's disease suggests that it might be involved in the pathogenesis of the disease. Nonetheless, the function of synphilin-1 remains unclear. In the present study, we generated transgenic mice expressing human synphilin-1 under the prion protein promoter. Synphilin-1 was widely expressed in neurons in the brain including the substantia nigra, where massive loss of dopamine neurons was not observed. In the transgenic mouse brain, synphilin-1 protein was polyubiquitinated, and partially insoluble. Although modified-SHIRPA revealed no significant difference in behavior and morphology, the reduced rotarod performance and step length were observed in transgenic mice as compared with non-transgenic littermates. Synphilin-1 might be involved in motor function, and its accumulation in the central nervous system can cause motor impairments.
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Affiliation(s)
- Hong-Guo Jin
- Department of Clinical Neuroscience and Therapeutics, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Hiroshima 734-8551, Japan
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Inoue H, Hiraoka K, Hoshino T, Okamoto M, Iwanaga T, Zenmyo M, Shoda T, Aizawa H, Nagata K. High levels of serum IL-18 promote cartilage loss through suppression of aggrecan synthesis. Bone 2008; 42:1102-10. [PMID: 18374640 DOI: 10.1016/j.bone.2008.01.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2007] [Revised: 01/04/2008] [Accepted: 01/27/2008] [Indexed: 11/29/2022]
Abstract
Osteoarthritis (OA) is closely related to the function of several inflammatory cytokines. It has been reported that older age is associated with higher serum levels of the inflammatory cytokine IL-18. In the present study, we investigated the long-term role of serum IL-18 in cartilage loss in vivo using a new strain of IL-18 transgenic mouse (Tg) in comparison with wild-type (WT) mice. The IL-18 Tg mouse strain we developed constitutively overproduces soluble mature IL-18 in the lungs but not in other tissues, including joints. These Tg mice showed high levels of serum IL-18, but not IL-1beta. No inflammatory cells, fibrillation or synovitis were observed in the knee joints of either IL-18 Tg or WT mice. However, the cartilage cellularity of the femoral and tibial condyles of IL-18 Tg mice was significantly reduced in comparison with control WT mice. Aggrecan was detected in only a few cells in the deep zone of the articular cartilage of Tg mice. The expression of aggrecan mRNA was also significantly decreased in articular chondrocytes from Tg mice when compared with WT mice. In contrast, endogenous IL-18 mRNA was significantly increased in the chondrocytes of Tg mice in comparison with WT mice. Expression of IFN-gamma was also significantly increased in the Tg mice. Moreover, IL-18 transgene-positive caspase-1-deficient mice showed articular cartilage loss that was independent of endogenous IL-1beta. In cultured chondrocytes isolated from WT mice, the expression of aggrecan mRNA was dosage-dependently suppressed by treatment with recombinant IL-18. In contrast, IL-18 stimulated the expression of mRNA for endogenous IL-18 and IFN-gamma. These results suggest that high levels of serum IL-18 promote the overexpression of endogenous IL-18 in articular chondrocytes, resulting in cartilage loss through suppression of aggrecan synthesis. Thus IL-18 may play an important role in the pathogenesis of articular cartilage loss in osteoarthritis.
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Affiliation(s)
- Hidetake Inoue
- Department of Orthopedics, Kurume University School of Medicine, 67 Ashahi-machi, Kurume 830-0011, Japan
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Hoshino T, Okamoto M, Takei S, Sakazaki Y, Iwanaga T, Aizawa H. Redox-regulated mechanisms in asthma. Antioxid Redox Signal 2008; 10:769-83. [PMID: 18179361 DOI: 10.1089/ars.2007.1936] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Homeostasis of the reduction-oxidation (redox) state is critical to protection from oxidative stress in the lungs. Therefore, the lungs have high levels of antioxidants, including glutathione, heme oxygenase, and superoxide dismutase. The numbers of inflammatory cells -- particularly eosinophils -- are increased in the airways of asthma patients, and these pulmonary inflammatory cells release large amounts of harmful reactive oxygen species and reactive nitrogen species. Human thioredoxin 1 (TRX1) is a redox-active protein of approximately 12 kDa that contains a (32)Cys-Gly-Pro-(35)Cys sequence necessary for its activity. The strong reducing activity of the sequence results from the cysteine residues acting as proton donors and cleaving disulfide (S-S) bonds in the target protein. Endogenous or exogenous TRX1 or both protect the lungs against ischemia-reperfusion injury, influenza infection, bleomycin-induced injury, or lethal pulmonary inflammation caused by interleukin-2 and interleukin-18. We showed that exogenous TRX1 inhibits airway hyperresponsiveness and pulmonary inflammation accompanied by eosinophilia in mouse models of asthma. Recently, we reported that exogenous TRX1 improves established airway remodeling in a prolonged antigen-exposure mouse asthma model. Exogenous and endogenous TRX1 also prevents the development of airway remodeling. Here, we discuss the role and clinical benefits of TRX1 in asthma.
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Affiliation(s)
- Tomoaki Hoshino
- Divisions of Respirology, Neurology, and Rheumatology, Department of Medicine, Kurume University School of Medicine, Kurume, Japan.
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Hoshino T, Young HA, Aizawa H. Cytokines in Pulmonary Emphysema: Can Results in Mice Be Translated to Humans? Am J Respir Crit Care Med 2008. [DOI: 10.1164/ajrccm.177.2.238a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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