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Xue D, Qian Y, Tu X, He M, Xing F, Ren Y, Yuan C. The effect of circulating cytokines on the risk of systemic lupus erythematosus: Mendelian randomization and observational study. Immunogenetics 2024:10.1007/s00251-024-01351-x. [PMID: 39183206 DOI: 10.1007/s00251-024-01351-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Accepted: 08/14/2024] [Indexed: 08/27/2024]
Abstract
Systemic lupus erythematosus (SLE) is a complex autoimmune disorder, the etiology of which involves the alterations in circulating cytokine levels. However, the cause-and-effect relationships and in-depth clinical relevance of them remain to be systematically investigated. We conducted a two-sample Mendelian randomization (MR) study to assess the causality of circulating cytokine levels and SLE and found that genetically determined elevated CTACK and IL-18 were associated with an increased risk of SLE, whereas a higher level of GRO-a was associated with decreased risk. Furthermore, we performed an observational study to further reveal the association between 27 cytokines and the severity measured by SLEDAI score, as well as lupus nephritis (LN), of SLE. We identified six cytokines (MCP1, MIP1β, CTACK, IP10, HGF, IL18, IL13) that were identified as associated with the clinical severity of SLE, and five cytokines, especially IL18, were related with LN and may have good diagnostic value. Moreover, we also predicted four compounds that might have good binding activities with IL18. The evidence supported a potential causal role of circulating cytokines on the risk of SLE. Targeting IL18 might be a meaningful strategy for the prevention or treatment of SLE, especially in LN patients.
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Affiliation(s)
- Dan Xue
- Dermatology Department, Hangzhou TCM Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yu Qian
- Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, China
| | - Xiao Tu
- Nephrology Department, Hangzhou TCM Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Mu He
- Dermatology Department, Hangzhou TCM Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Fengling Xing
- Dermatology Department, Hangzhou TCM Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yunqing Ren
- Department of Dermatology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Chengda Yuan
- Dermatology Department, Hangzhou TCM Hospital, Zhejiang Chinese Medical University, Hangzhou, China.
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Tang YY, Wang DC, Chen YY, Xu WD, Huang AF. Th1-related transcription factors and cytokines in systemic lupus erythematosus. Front Immunol 2023; 14:1305590. [PMID: 38164134 PMCID: PMC10757975 DOI: 10.3389/fimmu.2023.1305590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/27/2023] [Indexed: 01/03/2024] Open
Abstract
Systemic lupus erythematosus (SLE) is an inflammatory disorder related to immunity dysfunction. The Th1 cell family including Th1 cells, transcription factor T-bet, and related cytokines IFNγ, TNFα, IL-2, IL-18, TGF-β, and IL-12 have been widely discussed in autoimmunity, such as SLE. In this review, we will comprehensively discuss the expression profile of the Th1 cell family in both SLE patients and animal models and clarify how the family members are involved in lupus development. Interestingly, T-bet-related age-associated B cells (ABCs) and low-dose IL-2 treatment in lupus were emergently discussed as well. Collection of the evidence will better understand the roles of the Th1 cell family in lupus pathogenesis, especially targeting IL-2 in lupus.
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Affiliation(s)
- Yang-Yang Tang
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, Sichuan, China
| | - Da-Cheng Wang
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, Sichuan, China
| | - You-Yue Chen
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, Sichuan, China
| | - Wang-Dong Xu
- Department of Evidence-Based Medicine, Southwest Medical University, Luzhou, Sichuan, China
| | - An-Fang Huang
- Department of Rheumatology and Immunology, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
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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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Renal NLRP3 Inflammasome activation is associated with disease activity in lupus nephritis. Clin Immunol 2023; 247:109221. [PMID: 36610524 DOI: 10.1016/j.clim.2022.109221] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/14/2022] [Accepted: 12/28/2022] [Indexed: 01/06/2023]
Abstract
The current study was initiated to comprehensively evaluate renal NLRP3 inflammasome pathway activation in lupus nephritis (LN) patients and their clinicopathological significances based on a Chinese LN cohort. We found that the expressions of NLRP3, ASC, caspase-1, IL-1β and IL-18 were all significantly higher in the kidneys of LN patients and were predominantly expressed in glomerular mesangial cells, podocytes, renal tubular epithelial cells and macrophages. The expressions of NLRP3, ASC, caspase-1 and IL-1β were positively correlated to SLEDAI scores and several renal pathological activity indices, while the expression of NLRP3 was negatively associated with chronicity scores. Moreover, the foot process width was positively correlated with glomerular caspase-1 levels, and several podocyte injury markers were decreased significantly in LN patients with higher caspase-1 expression compared with those with lower expression. Our findings indicated that renal NLRP3 inflammasome was activated in LN patients and correlated with disease activity, which needs further explorations.
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Cao H, Liang J, Liu J, He Y, Ke Y, Sun Y, Jiang S, Lin J. Novel Effects of Combination Therapy Through Inhibition of Caspase-1/Gasdermin D Induced-Pyroptosis in Lupus Nephritis. Front Immunol 2021; 12:720877. [PMID: 34867948 PMCID: PMC8639704 DOI: 10.3389/fimmu.2021.720877] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 11/04/2021] [Indexed: 12/19/2022] Open
Abstract
Objectives Combination therapy with mycophenolate mofetil, tacrolimus and steroids are effective in achieving complete remission in lupus nephritis (LN). Combination therapy uniquely downregulated caspase-1 compared with monotherapies, which can cleave gasdermin D (GSDMD) and was recently identified as the pyroptosis executioner. We therefore investigated whether combination therapy enabled the suppression of caspase-1/GSDMD-mediated pyroptosis in LN. Methods Expression and activation of GSDMD were detected in kidney specimens of the human and mouse with LN using immunohistochemical staining and immunoblotting. Primary podocytes isolated from MRL/lpr mice were incubated with LPS+ATP, and pretreated with monotherapy or combination therapy. Inhibition of caspase-1/GSDMD-induced pyroptosis by combination therapy were assessed in MRL/lpr mice and human specimens. Pyroptosis was examined using a FAM caspase-1 kit and flow cytometry. The correlation between pyroptosis in peripheral blood and the systemic lupus erythematosus disease activity index (SLEDAI) was analyzed. Results Kidney tissue specimens from LN patients and mice exhibited greatly increased expression levels and cleavage of GSDMD. In cultured podocytes, combination treatment significantly suppressed the activation of NLRP3 and caspase-1 and reduced GSDMD N-terminal levels. Combination therapy repressed disease progression through inhibition of caspase-1/GSDMD-mediated pyroptosis in both humans and MRL/lpr mice. Caspase-1/PI positive cell numbers in peripheral blood were positively correlated with SLE-DAI. LN patients with complete remission and partial remission had remarkably reduced caspase-1/PI positive cell numbers compared to baseline. Ac-FLTD-CMK, a GSDMD-derived inhibitor, prevented the development of LN. Conclusion Combination therapy suppressed caspase-1/GSDMD-mediated pyroptosis in vitro and in vivo and reduced disease progression.
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Affiliation(s)
- Heng Cao
- Department of Rheumatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Junyu Liang
- Department of Rheumatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jing Liu
- National Clinical Research Center of Kidney Diseases, Jinling Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Ye He
- Department of Rheumatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yini Ke
- Department of Rheumatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yiduo Sun
- Department of Rheumatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Song Jiang
- National Clinical Research Center of Kidney Diseases, Jinling Clinical Medical College of Nanjing Medical University, Nanjing, China
- *Correspondence: Song Jiang, ; Jin Lin,
| | - Jin Lin
- Department of Rheumatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- *Correspondence: Song Jiang, ; Jin Lin,
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Rezaieyazdi Z, AkbariRad M, Saadati N, Salari M, Orang R, Sedighi S, Esmaily H, Azarpazhooh MR, Firoozi A, Akbarpour E. Serum interleukin-18 and its relationship with subclinical atherosclerosis in systemic lupus erythematosus. ARYA ATHEROSCLEROSIS 2021; 17:1-6. [PMID: 35685451 PMCID: PMC9145840 DOI: 10.22122/arya.v17i0.2126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 06/30/2021] [Indexed: 11/23/2022]
Abstract
BACKGROUND Interleukin-18 (IL-18) is a pro-inflammatory and pro-atherogenic factor, and its blood level has shown a direct correlation with atherosclerosis. We aimed to evaluate the serum IL-18 level in patients with systemic lupus erythematosus (SLE) and its relationship with the intima-media thickness (IMT) of the carotid artery in these patients, as an indicator of atherosclerosis. METHODS In this cross-sectional study, 60 patients as the patient group and 30 healthy volunteers as the control group [matched sex, age, and body mass index (BMI)] were selected, and their disease status and general data were gathered using the Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) form. A blood sample was also obtained from all participants to determine the serum level of IL-18 and other metrics, including high-sensitivity C-reactive protein (hs-CRP), cholesterol, triglyceride (TG), low-density lipoprotein (LDL), high-density lipoprotein (HDL), anti-double stranded deoxyribonucleic acid (anti-dsDNA), complement 3 (C3), and C4. The IMT of the carotid artery was calculated in both groups. We also evaluated the clinical cardiovascular manifestations. RESULTS The serum IL-18 levels in patients were significantly higher than in the control group (P ˂ 0.005). It had no significant correlation with disease activity (P = 0.10). The patients with SLE with high IL-18 serum levels (> 280 pg/ml) had higher SLEDAI-2K (P = 0.02) than the patients with a low level (< 280), where 280 was the median of the IL-18 levels. The serum IL-18 level had no significant correlation with the carotid artery IMT. CONCLUSION A high level of IL-18 reflects the disease activity, but it was not significantly correlated with subclinical atherosclerosis, denoted by the carotid artery IMT.
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Affiliation(s)
- Zahra Rezaieyazdi
- Rheumatic Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mina AkbariRad
- Assistant Professor, Department of Internal Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nayyereh Saadati
- Rheumatic Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Masoumeh Salari
- Rheumatic Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reza Orang
- Rheumatic Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sima Sedighi
- Golestan Rheumatology Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Habibollah Esmaily
- Department of Epidemiology and Biostatistics, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Abdollah Firoozi
- Pharmacist, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ensieh Akbarpour
- Department of Epidemiology and Biostatistics, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
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Hirooka Y, Nozaki Y. Interleukin-18 in Inflammatory Kidney Disease. Front Med (Lausanne) 2021; 8:639103. [PMID: 33732720 PMCID: PMC7956987 DOI: 10.3389/fmed.2021.639103] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 02/08/2021] [Indexed: 12/29/2022] Open
Abstract
Interleukin (IL)-18, a member of the IL-1 superfamily, is a pro-inflammatory cytokine that is structurally similar to IL-1β. IL-18 promotes the production of interferon gamma (IFN-γ) and strongly induces a Th1 response. IL-18 drives the same myeloid differentiation factor 88 (MyD88)/nuclear factor kappa B (NF-κB) signaling pathway as IL-1β. In physiological conditions, IL-18 is regulated by the endogenous inhibitor IL-18 binding protein (IL-18BP), and the activity of IL-18 is balanced. It is reported that in several inflammatory diseases, the IL-18 activity is unbalanced, and IL-18 neutralization by IL-18BP is insufficient. IL-18 acts synergistically with IL-12 to induce the production of IFN-γ as a Th1 cytokine, and IL-18 acts alone to induce the production of Th2 cytokines such as IL-4 and IL-13. In addition, IL-18 alone enhances natural killer (NK) cell activity and FAS ligand expression. The biological and pathological roles of IL-18 have been studied in many diseases. Here we review the knowledge regarding IL-18 signaling and the role of IL-18 in inflammatory kidney diseases. Findings on renal injury in coronavirus disease 2019 (COVID-19) and its association with IL-18 will also be presented.
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Affiliation(s)
- Yasuaki Hirooka
- Department of Rheumatology, Kindai University Nara Hospital, Nara, Japan
| | - Yuji Nozaki
- Department of Hematology and Rheumatology, Kindai University School of Medicine, Osaka, Japan
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Xiang M, Feng Y, Wang Y, Wang J, Zhang Z, Liang J, Xu J. Correlation between circulating interleukin-18 level and systemic lupus erythematosus: a meta-analysis. Sci Rep 2021; 11:4707. [PMID: 33633218 PMCID: PMC7907126 DOI: 10.1038/s41598-021-84170-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 02/12/2021] [Indexed: 12/29/2022] Open
Abstract
This study is a meta-analysis aimed at pooling reported data and clarifying the association between circulating level of interleukin-18 and systemic lupus erythematosus (SLE). We searched medical databases including Medline/Pubmed, Embase, Scopus, The Cochrane Library, and Web of Science thoroughly to obtain all related articles published before July 15th, 2020. We pooled computed standardized mean difference (SMD) and its 95% confidence interval using STATA 13.0 and exhibited in the form of forest graph. Meta-regression and subgroup analysis were also performed to explore the source of heterogeneity. Publication bias was first evaluated by the symmetry of the funnel plot and then Egger’s linear regression test. Thirty eligible studies from eighteen regions were finally included and the relevant data from these studies were pooled. The analysis results displayed that SLE patients showed a significantly higher level of circulating IL-18 level in comparison with healthy controls (SMD = 1.56, 95% CI [1.20–1.93]; I2 = 94.9%, p < 0.01). The conclusion was equally applicable in subgroups divided based on sample type, mean age, disease duration, and testing method. Patients with SLEDAI score higher than five, or who were Asian, White, Arab, or mixed ethnicity had an elevated level of IL-18, while the others didn’t. This meta-analysis has elucidated that compared with healthy people, the circulating level of IL-18 is considerably higher in SLE patients, which indicates the underlying role of IL-18 in SLE pathogenesis.
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Affiliation(s)
- Mengmeng Xiang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Yang Feng
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, 200040, China. .,Cutaneous Biology Research Center and Melanoma Program MGH Cancer Center, Harvard Medical School/Massachusetts General Hospital, Boston, MA, 02114, USA.
| | - Yilun Wang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Jie Wang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Zhixiong Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - Jun Liang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, 200040, China.
| | - Jinhua Xu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, 200040, China.,Shanghai Institute of Dermatology, Shanghai, 200040, China
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Gachpazan M, Akhlaghipour I, Rahimi HR, Saburi E, Mojarrad M, Abbaszadegan MR, Moghbeli M. Genetic and molecular biology of systemic lupus erythematosus among Iranian patients: an overview. AUTO- IMMUNITY HIGHLIGHTS 2021; 12:2. [PMID: 33516274 PMCID: PMC7847600 DOI: 10.1186/s13317-020-00144-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 10/09/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Systemic lupus erythematosus (SLE) is a clinicopathologically heterogeneous chronic autoimmune disorder affecting different organs and tissues. It has been reported that there is an increasing rate of SLE incidence among Iranian population. Moreover, the Iranian SLE patients have more severe clinical manifestations compared with other countries. Therefore, it is required to introduce novel methods for the early detection of SLE in this population. Various environmental and genetic factors are involved in SLE progression. MAIN BODY In present review we have summarized all of the reported genes which have been associated with clinicopathological features of SLE among Iranian patients. CONCLUSIONS Apart from the reported cytokines and chemokines, it was interestingly observed that the apoptosis related genes and non-coding RNAs were the most reported genetic abnormalities associated with SLE progression among Iranians. This review clarifies the genetics and molecular biology of SLE progression among Iranian cases. Moreover, this review paves the way of introducing an efficient panel of genetic markers for the early detection and better management of SLE in this population.
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Affiliation(s)
- Meisam Gachpazan
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Iman Akhlaghipour
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Reza Rahimi
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ehsan Saburi
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Mojarrad
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Reza Abbaszadegan
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Liu G, Chen X, Wang Q, Yuan L. NEK7: a potential therapy target for NLRP3-related diseases. Biosci Trends 2020; 14:74-82. [PMID: 32295992 DOI: 10.5582/bst.2020.01029] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
NLRP3 inflammasome plays an essential role in innate immunity, yet the activation mechanism of NLRP3 inflammasome is not clear. In human or animal models, inappropriate NLRP3 inflammasome activation is implicated in many NLRP3-related diseases, such as tumors, inflammatory diseases and autoimmune diseases. Until now, a great number of inhibitors have been used to disturb the related signaling pathways, such as IL-1β blockade, IL-18 blockade and caspase-1 inhibitors. Unfortunately, most of these inhibitors just disturb the signaling pathways after the activation of NLRP3 inflammasome. Inhibitors that directly regulate NLRP3 to abolish the inflammation response may be more effective. NEK7 is a multifunctional kinase affecting centrosome duplication, mitochondrial regulation, intracellular protein transport, DNA repair and mitotic spindle assembly. Researchers have made significant observations on the regulation of gene transcription or protein expression of the NLRP3 inflammasome signaling pathway by NEK7. Those signaling pathways include ROS signaling, potassium efflux, lysosomal destabilization, and NF-κB signaling. Furthermore, NEK7 has been proved to be involved in many NLRP3-related diseases in humans or in animal models. Inhibitors focused on NEK7 may regulate NLRP3 to abolish the inflammation response and NEK7 may be a potential therapeutic target for NLRP3-related diseases.
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Affiliation(s)
- Ganglei Liu
- Department of Geriatrics Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xueliang Chen
- Department of Geriatrics Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qianqian Wang
- Department of Oncology, The Affiliated Zhuzhou Hospital of Xiangya Medical College, Central South University, Zhuzhou, Hunan, China
| | - Lianwen Yuan
- Department of Geriatrics Surgery, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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High interleukin-18 and low FOXP3 mRNAs in peripheral blood of women with severe systemic lupus erythematosus: a cross-sectional study. Rheumatol Int 2020; 40:727-735. [PMID: 32152765 DOI: 10.1007/s00296-020-04542-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 02/27/2020] [Indexed: 12/11/2022]
Abstract
Gene expression analysis of peripheral blood cells may provide valuable information about the triggered molecular processes in systemic lupus erythematosus (SLE). The study aimed to quantify the mRNA in peripheral blood of seven target genes, including inflammatory cytokine genes (IL23A, IL12B, TNFA, IL18), and T regulatory-related genes (FOXP3, TGFB1, IL10) in patients with SLE and to correlate expression levels with disease activity and/or clinical manifestations. The relative quantification of target genes was performed using real-time polymerase chain reaction in peripheral blood obtained from 28 adult SLE females and 17 healthy women. The highest up-regulation in the blood of SLE patients was observed for IL23A with a median 9.54 (p < 0.0001), followed by TGFB1 (median: 2.07; p = 0.047) and IL10 (median: 1.84; p = 0.013). IL12B and TNFA were significantly down-regulated in patients compared to controls (median: 0.521; p = 0.0023, and median: 0.519; p = 0.0003, respectively). FOXP3 mRNA was lower among patients with higher degree of disease activity (median: 0.338; p = 0.029) and showed inverse correlation with Systemic Lupus Erythematosus Disease Activity Index (SLEDAI). IL18 mRNA correlated positively with the SLEDAI and was highly expressed during severe flares (median: 1.216; p = 0.021). IL18 up-regulation was associated with anti-dsDNA antibody positivity, while FOXP3 down-regulation with lupus nephritis. Our study pointed out the relationship of SLE disease activity and particular clinical manifestations with IL18 and FOXP3 expression, and the significant contribution of IL23A in the SLE immunopathogenesis. Hence, the peripheral blood cytokine mRNAs should be exploited as novel prognostic and diagnostic biomarkers.
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Performance of cytokine models in predicting SLE activity. Arthritis Res Ther 2019; 21:287. [PMID: 31842967 PMCID: PMC6915901 DOI: 10.1186/s13075-019-2029-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 10/09/2019] [Indexed: 01/08/2023] Open
Abstract
Background Identification of universal biomarkers to predict systemic lupus erythematosus (SLE) flares is challenging due to the heterogeneity of the disease. Several biomarkers have been reported. However, the data of validated biomarkers to use as a predictor for lupus flares show variation. This study aimed to identify the biomarkers that are sensitive and specific to predict lupus flares. Methods One hundred and twenty-four SLE patients enrolled in this study and were prospectively followed up. The evaluation of disease activity achieved by the SLE disease activity index (SLEDAI-2K) and clinical SLEDAI (modified SLEDAI). Patients with active SLE were categorized into renal or non-renal flares. Serum cytokines were measured by multiplex bead-based flow cytometry. The correlation and logistic regression analysis were performed. Results Levels of IFN-α, MCP-1, IL-6, IL-8, and IL-18 significantly increased in active SLE and correlated with clinical SLEDAI. Complement C3 showed a weakly negative relationship with IFN-α and IL-18. IL-18 showed the highest positive likelihood ratios for active SLE. Multiple logistic regression analysis showed that IL-6, IL-8, and IL-18 significantly increased odds ratio (OR) for active SLE at baseline while complement C3 and IL-18 increased OR for active SLE at 12 weeks. IL-18 and IL-6 yielded higher sensitivity and specificity than anti-dsDNA and C3 to predict active renal and active non-renal, respectively. Conclusion The heterogeneity of SLE pathogenesis leads to different signaling mechanisms and mediates through several cytokines. The monitoring of cytokines increases the sensitivity and specificity to determine SLE disease activity. IL-18 predicts the risk of active renal SLE while IL-6 and IL-8 predict the risk of active non-renal. The sensitivity and specificity of these cytokines are higher than the anti-dsDNA or C3. We propose to use the serum level of IL-18, IL-6, and IL-8 to monitor SLE disease activity in clinical practice.
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Aringer M. Inflammatory markers in systemic lupus erythematosus. J Autoimmun 2019; 110:102374. [PMID: 31812331 DOI: 10.1016/j.jaut.2019.102374] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 11/20/2019] [Indexed: 01/04/2023]
Abstract
While systemic lupus erythematosus (SLE) is an autoantibody and immune complex disease by nature, most of its organ manifestations are in fact inflammatory. SLE activity scores thus heavily rely on assessing inflammation in the various organs. This focus on clinical items demonstrates that routine laboratory markers of inflammation are still limited in their impact. The erythrocyte sedimentation rate (ESR) is used, but represents a rather crude overall measure. Anemia and diminished serum albumin play a role in estimating inflammatory activity, but both are reflecting more than one mechanism, and the association with inflammation is complex. C-reactive protein (CRP) is a better marker for infections than for SLE activity, where there is only a limited association, and procalcitonin (PCT) is also mainly used for detecting severe bacterial infection. Of the cytokines directly induced by immune complexes, type I interferons, interleukin-18 (IL-18) and tumor necrosis factor (TNF) are correlated with inflammatory disease activity. Still, precise and timely measurement is an issue, which is why they are not currently used for routine purposes. While somewhat more robust in the assays, IL-18 binding protein (IL-18BP) and soluble TNF-receptor 2 (TNF-R2), which are related to the respective cytokines, have not yet made it into clinical routine. The same is true for several chemokines that are increased with activity and relatively easy to measure, but still experimental parameters. In the urine, proteinuria leads and is essential for assessing kidney involvement, but may also result from damage. Similar to the situation in serum and plasma, several cytokines and chemokines perform reasonably well in scientific studies, but are not routine parameters. Cellular elements in the urine are more difficult to assess in the routine laboratory, where sufficient routine is not always available. Therefore, the analysis of urinary T cells may have potential for better monitoring renal inflammation.
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Affiliation(s)
- Martin Aringer
- University Medical Center and Faculty of Medicine Carl Gustav Carus at the TU Dresden, Fetscherstrasse 74, 01307, Dresden, Germany.
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14
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Yang F, He Y, Zhai Z, Sun E. Programmed Cell Death Pathways in the Pathogenesis of Systemic Lupus Erythematosus. J Immunol Res 2019; 2019:3638562. [PMID: 31871956 PMCID: PMC6913273 DOI: 10.1155/2019/3638562] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/04/2019] [Accepted: 10/18/2019] [Indexed: 02/07/2023] Open
Abstract
Systemic lupus erythematosus (SLE) is a heterogeneous autoimmune disease characterized by excessive inflammatory and immune responses and tissue damage. Increasing evidence has demonstrated the important role of programmed cell death in SLE pathogenesis. When apoptosis encounters with defective clearance, accumulated apoptotic cells lead to secondary necrosis. Different forms of lytic cell death, including secondary necrosis after apoptosis, NETosis, necroptosis, and pyroptosis, contribute to the release of damage-associated molecular patterns (DAMPs) and autoantigens, resulting in triggering immunity and tissue damage in SLE. However, the role of autophagy in SLE pathogenesis is in dispute. This review briefly discusses different forms of programmed cell death pathways and lay particular emphasis on inflammatory cell death pathways such as NETosis, pyroptosis, and necroptosis and their roles in the inflammatory and immune responses in SLE.
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Affiliation(s)
- Fangyuan Yang
- Department of Rheumatology and Immunology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Institute of Clinical Immunology, Academy of Orthopedics, Guangdong Province, Guangzhou, China
| | - Yi He
- Department of Rheumatology and Immunology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Institute of Clinical Immunology, Academy of Orthopedics, Guangdong Province, Guangzhou, China
| | - Zeqing Zhai
- Department of Rheumatology and Immunology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Institute of Clinical Immunology, Academy of Orthopedics, Guangdong Province, Guangzhou, China
| | - Erwei Sun
- Department of Rheumatology and Immunology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Institute of Clinical Immunology, Academy of Orthopedics, Guangdong Province, Guangzhou, China
- Department of Rheumatology and Immunology, Shunde Hospital, Southern Medical University, Guangzhou, China
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Lin E, Vincent FB, Sahhar J, Ngian GS, Kandane-Rathnayake R, Mende R, Morand EF, Lang T, Harris J. Analysis of serum interleukin(IL)-1α, IL-1β and IL-18 in patients with systemic sclerosis. Clin Transl Immunology 2019; 8:e1045. [PMID: 30997045 PMCID: PMC6451750 DOI: 10.1002/cti2.1045] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 12/17/2022] Open
Abstract
Objectives Systemic sclerosis (SSc) is an autoimmune disease characterised by fibrosis, vascular dysfunction and immune dysregulation. The pathogenesis of SSc remains poorly understood, although studies have indicated a role for the innate immune response. Methods Here, we measured serum interleukin (IL)‐1α, IL‐1β and IL‐18 levels in 105 SSc patients and 47 healthy controls (HC) and analysed them with respect to multiple clinical parameters. Results Serum IL‐18 concentrations were significantly higher in SSc patients than in HC, while no significant differences in concentrations of IL‐1α and IL‐1β were observed between SSc and HC. In both SSc and HC serum, IL‐1α and IL‐1β were positively correlated, while in SSc, both cytokines negatively correlated with IL‐18. Serum IL‐18 was significantly negatively correlated with both carbon monoxide transfer coefficient (KCO) and diffusing capacity of the lungs for carbon monoxide (DLCO). Serum IL‐1β was positively correlated with the modified Rodnan skin score (mRSS), particularly in patients with limited subtype. DLCO, KCO and tricuspid regurgitation (TR) velocity were significantly higher in patients with high serum IL‐1β. Serum IL‐1α was significantly lower in SSc patients with low KCO and positively correlated with KCO. SSc patients with high serum IL‐1α concentrations were more likely to have digital ulcers. Conclusions Our data suggest that these IL‐1 family cytokines may have different roles in the pathogenesis of SSc fibrotic complications.
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Affiliation(s)
- Emily Lin
- Rheumatology Group Centre for Inflammatory Diseases School of Clinical Sciences at Monash Health Monash University Clayton VIC Australia
| | - Fabien B Vincent
- Rheumatology Group Centre for Inflammatory Diseases School of Clinical Sciences at Monash Health Monash University Clayton VIC Australia
| | - Joanne Sahhar
- Department of Rheumatology Monash Health & Monash University Clayton VIC Australia
| | - Gene-Siew Ngian
- Department of Rheumatology Monash Health & Monash University Clayton VIC Australia
| | - Rangi Kandane-Rathnayake
- Rheumatology Group Centre for Inflammatory Diseases School of Clinical Sciences at Monash Health Monash University Clayton VIC Australia
| | - Rachel Mende
- Rheumatology Group Centre for Inflammatory Diseases School of Clinical Sciences at Monash Health Monash University Clayton VIC Australia
| | - Eric F Morand
- Rheumatology Group Centre for Inflammatory Diseases School of Clinical Sciences at Monash Health Monash University Clayton VIC Australia.,Department of Rheumatology Monash Health & Monash University Clayton VIC Australia
| | - Tali Lang
- Rheumatology Group Centre for Inflammatory Diseases School of Clinical Sciences at Monash Health Monash University Clayton VIC Australia.,Present address: Tali Lang, The Szalmuk Family Department of Medical Oncology Cabrini Institute Malvern VIC 3144 Australia
| | - James Harris
- Rheumatology Group Centre for Inflammatory Diseases School of Clinical Sciences at Monash Health Monash University Clayton VIC Australia
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Umare V, Pradhan V, Nath S, Rajadhyaksha A, Ghosh K, Nadkarni AH. Impact of functional IL-18 polymorphisms on genetic predisposition and diverse clinical manifestations of the disease in Indian SLE patients. Lupus 2019; 28:545-554. [PMID: 30857465 DOI: 10.1177/0961203319834677] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Several studies have demonstrated associations between interleukin-18 polymorphisms and risk of systemic lupus erythematosus in different populations except one of Indian origin. We therefore investigated for the influence of interleukin-18 (-1297T/C, -607A/C, -137G/C; + 105A/C) polymorphisms on genetic susceptibility and clinical expression of the disease in Indian systemic lupus erythematosus patients. A total of 200 systemic lupus erythematosus patients and 201 controls were recruited. Genotyping of interleukin-18 polymorphisms were performed by polymerase chain reaction-restriction fragment length polymorphism. Serum interleukin-18 levels were measured by enzyme-linked immunosorbent assay. Interleukin-18 (-1297T/C; -137G/C) polymorphisms showed significant association with genetic susceptibility to the disease in our systemic lupus erythematosus cohort. Stratification analysis revealed -1297CC and -1297C associated with renal involvement (odds ratio = 3.4, correcting p value = 0.0207), (odds ratio = 2.0, correcting p value = 0.0054) respectively. Additionally, -1297C allele frequency was significantly increased in patients with anti-nucleosome antibody (odds ratio = 2.1, correcting p value = 0.0301). Haplotype analysis showed CC haplotype strongly associated with serositis (odds ratio = 9.1, correcting p values = 0.0009) and neurologic involvement (odds ratio = 9.3, correcting p value = 0.0018). We reported a 2.7-fold increase in serum interleukin-18 levels in patients (511.5 ± 242.3 pg/ml) compared to controls (189.4 ± 80.8 pg/ml) ( p < 0.0001). Furthermore, interleukin-18 levels were positively correlated with disease activity ( r = 0.548, p = 0.0001) and renal involvement in the patients with lupus nephritis ( r = 0.569, p < 0.0001). In summary, interleukin-18 polymorphisms elucidated in this study appear to confer genetic susceptibility to the disease and are associated with renal, serositis and neurologic involvement in Indian systemic lupus erythematosus patients.
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Affiliation(s)
- V Umare
- 1 National Institute of Immunohaematology, Indian Council of Medical Research, Mumbai, India
| | - V Pradhan
- 1 National Institute of Immunohaematology, Indian Council of Medical Research, Mumbai, India
| | - S Nath
- 2 Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, United States of America
| | - A Rajadhyaksha
- 3 Department of Rheumatology, King Edward Memorial Hospital, Mumbai, India
| | - K Ghosh
- 1 National Institute of Immunohaematology, Indian Council of Medical Research, Mumbai, India
| | - A H Nadkarni
- 1 National Institute of Immunohaematology, Indian Council of Medical Research, Mumbai, India
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Diesel exhaust particles induce autophagy and citrullination in Normal Human Bronchial Epithelial cells. Cell Death Dis 2018; 9:1073. [PMID: 30341285 PMCID: PMC6195610 DOI: 10.1038/s41419-018-1111-y] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 09/20/2018] [Accepted: 09/24/2018] [Indexed: 01/05/2023]
Abstract
A variety of environmental agents has been found to influence the development of autoimmune diseases; in particular, the studies investigating the potential association of systemic autoimmune rheumatic diseases with environmental micro and nano-particulate matter are very few and contradictory. In this study, the role of diesel exhaust particles (DEPs), one of the most important components of environment particulate matter, emitted from Euro 4 and Euro 5 engines in altering the Normal Human Bronchial Epithelial (NHBE) cell biological activity was evaluated. NHBE cells were exposed in vitro to Euro 4 and Euro 5 particle carbon core, sampled upstream of the typical emission after-treatment systems (diesel oxidation catalyst and diesel particulate filter), whose surfaces have been washed from well-assessed harmful species, as polycyclic aromatic hydrocarbons (PAHs) to: (1) investigate their specific capacity to affect cell viability (flow cytometry); (2) stimulate the production of the pro-inflammatory cytokine IL-18 (Enzyme-Linked ImmunoSorbent Assay -ELISA-); (3) verify their specific ability to induce autophagy and elicit protein citrullination and peptidyl arginine deiminase (PAD) activity (confocal laser scanning microscopy, immunoprecipitation, Sodium Dodecyl Sulphate-PolyAcrylamide Gel Electrophoresis -SDS-PAGE- and Western blot, ELISA). In this study we demonstrated, for the first time, that both Euro 4 and Euro 5 carbon particles, deprived of PAHs possibly adsorbed on the soot surface, were able to: (1) significantly affect cell viability, inducing autophagy, apoptosis and necrosis; (2) stimulate the release of the pro-inflammatory cytokine IL-18; (3) elicit protein citrullination and PAD activity in NHBE cells. In particular, Euro 5 DEPs seem to have a more marked effect with respect to Euro 4 DEPs.
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18
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Zhang J, Liu X, Meng Y, Wu H, Wu Y, Yang B, Wang L. Autoimmune disease associated IFIH1 single nucleotide polymorphism related with IL-18 serum levels in Chinese systemic lupus erythematosus patients. Sci Rep 2018; 8:9442. [PMID: 29930297 PMCID: PMC6013496 DOI: 10.1038/s41598-018-27782-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 06/08/2018] [Indexed: 02/05/2023] Open
Abstract
Systemic lupus erythematosus (SLE) has heterogeneous clinical manifestations. IFIH1 (interferon induced with helicase C domain 1) as one of antiviral helicase genes mediating type I interferon production, plays an essential role in the pathogenesis of SLE. The gene variants in IFIH1 could abnormally activate antiviral defenses and increased type I interferon signaling. The present study aimed to validate associations between single nucleotide polymorphisms (SNP) in IFIH1 and the pathogenesis of SLE. In total, rs1990760, rs3747517 and rs10930046 in IFIH1 are genotyped in 400 SLE patients and 659 health controls in Chinese cohort by an improved multiplex ligation detection reaction (iMLDR) technique. Significant associations were observed between alleles of IFIH1 (rs1990760 C > T, P = 0.005, OR = 1.36, 95%CI = 1.10–1.69; rs3747517 T > C, P = 0.004, OR = 1.31, 95%CI = 1.09–1.58, respectively) and SLE susceptibility. IFIH1 rs1990760 TT genotype carriers had lower serum levels of IL-18 (P < 0.001) and granzyme B (P < 0.001) than CC and CT genotype carriers. IFIH1 rs1990760 CT genotype carriers had higher anti-dsDNA–positive than CC and TT genotype carriers. In conclusion, IFIH1 polymorphisms (rs1990760 and rs3747517) were associated with SLE susceptibility and rs1990760 risk T allele related with IL-18 and granzyme B serum levels in SLE patients.
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Affiliation(s)
- Junlong Zhang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Xinle Liu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Yanming Meng
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Hengxu Wu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Yongkang Wu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Bin Yang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.
| | - Lanlan Wang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.
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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: 82] [Impact Index Per Article: 13.7] [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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Hypoxia induced mitogenic factor (HIMF) triggers angiogenesis by increasing interleukin-18 production in myoblasts. Sci Rep 2017; 7:7393. [PMID: 28785068 PMCID: PMC5547156 DOI: 10.1038/s41598-017-07952-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 07/05/2017] [Indexed: 01/10/2023] Open
Abstract
Inflammatory myopathy is a rare autoimmune muscle disorder. Treatment typically focuses on skeletal muscle weakness or inflammation within muscle, as well as complications of respiratory failure secondary to respiratory muscle weakness. Impaired respiratory muscle function contributes to increased dyspnea and reduced exercise capacity in pulmonary hypertension (PH), a debilitating condition that has few treatment options. The initiation and progression of PH is associated with inflammation and inflammatory cell recruitment and it is established that hypoxia-induced mitogenic factor (HIMF, also known as resistin-like molecule α), activates macrophages in PH. However, the relationship between HIMF and inflammatory myoblasts remains unclear. This study investigated the signaling pathway involved in interleukin-18 (IL-18) expression and its relationship with HIMF in cultured myoblasts. We found that HIMF increased IL-18 production in myoblasts and that secreted IL-18 promoted tube formation of the endothelial progenitor cells. We used the mouse xenograft model and the chick chorioallantoic membrane assay to further explore the role of HIMF in inflammatory myoblasts and angiogenesis in vivo. Thus, our study focused on the mechanism by which HIMF mediates IL-18 expression in myoblasts through angiogenesis in vitro and in vivo. Our findings provide an insight into HIMF functioning in inflammatory myoblasts.
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The association of novel IL-33 polymorphisms with sIL-33 and risk of systemic lupus erythematosus. Mol Immunol 2016; 77:1-7. [DOI: 10.1016/j.molimm.2016.07.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 06/29/2016] [Accepted: 07/03/2016] [Indexed: 11/22/2022]
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