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Chen Y, Ye Y, Liu H, Luo Z, Li Q, Xie Q. Interleukin-18 Gene Polymorphisms and Rheumatoid Arthritis Susceptibility: An Umbrella Review of Meta-Analyses. J Immunol Res 2024; 2024:6631033. [PMID: 38328001 PMCID: PMC10849815 DOI: 10.1155/2024/6631033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 12/26/2023] [Accepted: 01/16/2024] [Indexed: 02/09/2024] Open
Abstract
This study systematically analyzes the association between interleukin-18 (IL-18) gene polymorphisms and rheumatoid arthritis (RA) susceptibility. The electronic databases Ovid MEDLINE, Ovid Excerpta Medica Database, and Cochrane Library were searched to identify meta-analyses that included case-control studies reporting IL-18 gene polymorphisms and RA susceptibility. Data were reanalyzed using Review Manager Software 5.1, and Mantel-Haenszel random effects were applied for the five genetic models: allelic, recessive, dominant, homozygote, and heterozygote. The effect size of odds ratios (ORs) and their corresponding 95% confidence interval (CI) were calculated. A total of seven meta-analyses with poor quality were included. The IL-18 polymorphisms -607 A/C, -137 C/G, -920 T/C, and -105 C/A have been reported. With weak evidence, IL-18 -607 A/C polymorphisms were associated with a reduced risk of RA susceptibility using the allele model (OR = 0.76, 95% CI: 0.61 - 0.93, p=0.01), dominant model (OR = 0.67, 95% CI: 0.50 - 0.90, p=0.008), homozygote model (OR = 0.57, 95% CI: 0.35 - 0.91, p=0.02), and heterozygote model (OR = 0.71, 95% CI: 0.54 - 0.93, p=0.01) in the overall population. IL-18 gene polymorphisms and RA susceptibility are affected by ethnicity: With weak evidence, IL-18 -137 C/G polymorphisms were related to reduce RA susceptibility in the Asian population (allele model: OR = 0.59, 95% CI: 0.40 - 0.88, p=0.01; dominant model: OR = 0.57, 95% CI: 0.37 - 0.89, p=0.01; heterozygote model: OR = 0.60, 95% CI: 0.38 - 0.94, p=0.03). IL-18 -607 A/C gene polymorphisms are a protective factor for RA susceptibility in the overall population, and IL-18 -137 C/G gene polymorphisms are a protective factor for RA susceptibility in the Asian population. Further studies are needed to confirm these results owing to the limitations of the included studies.
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Affiliation(s)
- Yuehong Chen
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yali Ye
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Huan Liu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhongling Luo
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qianwei Li
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qibing Xie
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu 610041, China
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Viana GDA, da Costa MDR, da Silva ME, Duque BR, de Siqueira EA, Martins AMC, Alves RDS, de Menezes RRPPB, de Queiroz MGR, Sampaio TL. Serum il-18 and rs187238 single nucleotide polymorphism are associated with high-density lipoprotein changes in covid-19 outpatients. Int Immunopharmacol 2023; 122:110645. [PMID: 37453156 DOI: 10.1016/j.intimp.2023.110645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/06/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023]
Abstract
AIM COVID-19 is an inflammatory disease and its prognosis is associated with cardiovascular risk, which can be associated with changes in lipoprotein metabolism. The single nucleotide polymorphism (SNP) rs187238 of Interleukin (IL)-18 is extensively reported in association with worsening inflammatory and cardiovascular disease (CVD). This study evaluated the association of IL-18 levels and its SNP rs187238 with lipoprotein profile changes in COVID-19 outpatients. METHODS Observational, analytical, cross-sectional study that evaluated 250 patients with respiratory syndrome, 36% (n = 90) with COVID-19. Serum total cholesterol (TC), high-density lipoprotein cholesterol (HDL-c), low-density lipoprotein cholesterol (LDL-c), triglycerides (TG), apolipoproteins A-I and B (Apo A-I and Apo B) and IL-18 levels were determined. Polymorphism genotyping was done by real-time polymerase chain reaction (qPCR). The significance level was p < 0.05. RESULTS Patients with COVID-19 showed a reduction in TC and HDL-c, without difference in IL-18. HDL-c and LDL-c had a high frequency outside the reference values. There was a negative correlation of IL-18 with HDL-c and a positive correlation with Apo B/Apo A-I ratio. The frequencies of the C (wild) and G (polymorphic) alleles between patients with and without COVID-19 followed the Hardy-Weinberg equilibrium. However, COVID-19 was associated with reduced HDL-c and Apo A-I values in patients with the CC genotype. CONCLUSION IL-18 levels and its SNP rs187238 were associated with decreased HDL-c and Apo A-I in COVID-19 outpatients.
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Affiliation(s)
- Glautemberg de Almeida Viana
- Program in Pharmaceutical Sciences; Faculty of Pharmacy, Dentistry and Nursing; Federal University of Ceará, Brazil
| | | | - Mateus Edson da Silva
- Program in Pharmaceutical Sciences; Faculty of Pharmacy, Dentistry and Nursing; Federal University of Ceará, Brazil
| | - Bruna Ribeiro Duque
- Department of Clinical and Toxicological Analysis; Faculty of Pharmacy, Dentistry and Nursing; Federal University of Ceará, Brazil
| | - Erlânia Alves de Siqueira
- Department of Clinical and Toxicological Analysis; Faculty of Pharmacy, Dentistry and Nursing; Federal University of Ceará, Brazil
| | - Alice Maria Costa Martins
- Department of Clinical and Toxicological Analysis; Faculty of Pharmacy, Dentistry and Nursing; Federal University of Ceará, Brazil
| | - Renata de Sousa Alves
- Department of Clinical and Toxicological Analysis; Faculty of Pharmacy, Dentistry and Nursing; Federal University of Ceará, Brazil
| | | | | | - Tiago Lima Sampaio
- Program in Pharmaceutical Sciences; Faculty of Pharmacy, Dentistry and Nursing; Federal University of Ceará, Brazil; Department of Clinical and Toxicological Analysis; Faculty of Pharmacy, Dentistry and Nursing; Federal University of Ceará, Brazil.
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Xiao XY, Chen Q, Shi YZ, Li LW, Hua C, Zheng H. Risk factors of systemic lupus erythematosus: an overview of systematic reviews and Mendelian randomization studies. Adv Rheumatol 2023; 63:42. [PMID: 37596678 DOI: 10.1186/s42358-023-00323-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 08/02/2023] [Indexed: 08/20/2023] Open
Abstract
BACKGROUND The etiology of systemic lupus erythematosus is complex and incurable. A large number of systematic reviews have studied the risk factors of it. Mendelian randomization is an analytical method that uses genetic data as tool variables to evaluate the causal relationship between exposure and outcome. OBJECTIVE To review the systematic reviews and Mendelian randomization studies that focused on the risk factors of systemic lupus erythematosus and shed light on the development of treatments for its prevention and intervention. METHODS From inception to January 2022, we systematically searched MEDLINE (via PubMed) and Embase for related systematic reviews and Mendelian randomization studies. Extract relevant main data for studies that meet inclusion criteria. The quality of systematic reviews was assessed by using Assessment of Multiple Systematic Reviews 2 (AMSTAR-2). Finally, the risk factors are scored comprehensively according to the results' quantity, quality, and consistency. RESULTS Our study involved 64 systematic reviews and 12 Mendelian randomization studies. The results of systematic reviews showed that diseases (endometriosis, atopic dermatitis, allergic rhinitis), lifestyle (smoking, drinking, vaccination), and gene polymorphism influenced the incidence of systemic lupus erythematosus. The results of Mendelian randomization studies identified the role of disease (periodontitis, celiac disease), trace elements (selenium, iron), cytokines (growth differentiation factor 15), and gut microbiome in the pathogenesis of systemic lupus erythematosus. CONCLUSION We should pay attention to preventing and treating systemic lupus erythematosus in patients with endometriosis, celiac disease, and periodontitis. Take appropriate dietary supplements to increase serum iron and selenium levels to reduce the risk of systemic lupus erythematosus. There should be no excessive intervention in lifestyles such as smoking and drinking.
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Affiliation(s)
- Xin-Yu Xiao
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No.1166 Liutai Avenue, Wenjiang District, Chengdu, 610000, China
| | - Qian Chen
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No.1166 Liutai Avenue, Wenjiang District, Chengdu, 610000, China
| | - Yun-Zhou Shi
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No.1166 Liutai Avenue, Wenjiang District, Chengdu, 610000, China
| | - Li-Wen Li
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No.1166 Liutai Avenue, Wenjiang District, Chengdu, 610000, China
| | - Can Hua
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No.1166 Liutai Avenue, Wenjiang District, Chengdu, 610000, China
| | - Hui Zheng
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, No.1166 Liutai Avenue, Wenjiang District, Chengdu, 610000, China.
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Association between IL-18 and IL-6 gene polymorphisms and the risk of T1D in Egyptian children. J Diabetes Metab Disord 2021; 20:439-446. [PMID: 34222070 DOI: 10.1007/s40200-021-00763-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 02/03/2021] [Indexed: 10/22/2022]
Abstract
Purpose To test the involvement between IL-18 and IL-6 genetic polymorphisms and susceptibility to Type 1 diabetes (T1D). Methods Single nucleotide polymorphisms (SNPs) at positions -607A/C and - 137G/C in IL-18 promoter region were examined by sequence specific primers-polymerase chain reaction (SSP-PCR) and position -174G/C in promoter region of IL-6 gene which analyzed by Mutagenically Separated PCR (MS-PCR) in 104 T1D participants and 114 controls. Results IL-18 -137GC and -137CC genotypes and -137C allele were significantly decreased in T1D subjects (P < 0.05), while -137GG genotype was insignificantly increased as compared to controls. A significant decrease was detected in haplotype -137C/-607C frequency in T1D participants compared with controls (OR = 0.04, P < 0.001). There was significant association between IL-18 -607 of (CC, AC and AA genotypes) in age at diagnosis, glycated hemoglobin (HbA1c) and higher body mass index (BMI) (P < 0.05). Conclusion This study demonstrated that IL-18 gene promoter polymorphisms might be associated with susceptibility to T1D in Egyptian children. Individuals carrying CC genotype at position -137 of IL-18 promoter may be at a low risk of T1D progression. Additionally, the susceptible combination of IL-18 and IL-6 cytokine genes associated with T1D highlight their risk toward the disease. Supplementary Information The online version contains supplementary material available at 10.1007/s40200-021-00763-w.
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Li Z, Guo J, Bi L. Role of the NLRP3 inflammasome in autoimmune diseases. Biomed Pharmacother 2020; 130:110542. [PMID: 32738636 DOI: 10.1016/j.biopha.2020.110542] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/13/2020] [Accepted: 07/20/2020] [Indexed: 12/12/2022] Open
Abstract
NOD-like receptor family pyrin domain containing 3 (NLRP3) is an intracellular receptor that senses foreign pathogens and endogenous danger signals. It assembles with apoptosis-associated speck-like protein containing a CARD (ASC) and caspase-1 to form a multimeric protein called the NLRP3 inflammasome. Among its various functions, the NLRP3 inflammasome can induce the release of the pro-inflammatory cytokines interleukin (IL)-1β and IL-18 while also promoting gasdermin D (GSDMD)-mediated pyroptosis. Previous studies have established a vital role for the NLRP3 inflammasome in innate and adaptive immune system as well as its contribution to several autoimmune diseases including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), Sjögren's syndrome (SS), systemic sclerosis (SSc), and ankylosing spondylitis (AS). In this review, we briefly introduce the biological features of the NLRP3 inflammasome and present the mechanisms underlying its activation and regulation. We also summarize recent studies that have reported on the roles of NLRP3 inflammasome in the immune system and several autoimmune diseases, with a focus on therapeutic and clinical applications.
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Affiliation(s)
- Zhe Li
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Jialong Guo
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Liqi Bi
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China.
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da Cruz HLA, Cavalcanti CAJ, de Azêvedo Silva J, de Lima CAD, Fragoso TS, Barbosa AD, Dantas AT, de Ataíde Mariz H, Duarte ALBP, Pontillo A, Crovella S, Sandrin-Garcia P. Differential expression of the inflammasome complex genes in systemic lupus erythematosus. Immunogenetics 2020; 72:217-224. [PMID: 32020248 DOI: 10.1007/s00251-020-01158-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 01/29/2020] [Indexed: 12/28/2022]
Abstract
Systemic lupus erythematosus (SLE) is a complex autoimmune disorder involving heterogeneous clinical manifestations and numerous susceptibility genes. Several findings evidence the critical role of inflammasomes in the predisposition to autoimmune diseases and in SLE. We investigated whether inflammasome polymorphins could affect susceptibility to develop and/or severity SLE. Moreover, differences in inflammasome activation in peripheral blood were also evaluated in SLE patients and controls. The distribution of 13 SNPs in eight inflammasome genes was evaluated. To assess inflammasome priming in peripheral blood monocytes of SLE and controls, differential expression of selected inflammasome genes and IL-1ß production was analyzed in resting condition as well as after LPS and ATP stimulation. Results showed that the gain-of-function variant rs10754558 (NLRP3) was significantly more frequent in SLE patients with nephritis, reinforcing the concept of a key role of NLRP3 inflammasome not only in SLE but also especially in kidney disease. SLE monocytes in resting condition showed a higher level of IL-1ß expression and produced higher levels of IL-1ß when stimulated with LPS+ATP comparing to controls. The stimulation induced a significant expression of NLRP1, AIM2, CASP1, and IL1B genes, suggesting that the NLRP1 inflammasome is responsible for the IL-1ß production observed in monocytes. These data emphasized once more the important contribution of inflammasome in SLE-associated inflammation.
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Affiliation(s)
| | - Catarina Addobbati Jordão Cavalcanti
- Laboratory of Immunopathology Keizo Asami, Federal University of Pernambuco, Recife, Pernambuco, Brazil.,Department of Genetics, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | | | - Thiago Sotero Fragoso
- Rheumatology Service, "Clinical Hospital", Federal University of Alagoas, Maceió, Alagoas, Brazil
| | | | - Andréa Tavares Dantas
- Rheumatology Division, "Clinical Hospital", Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Henrique de Ataíde Mariz
- Rheumatology Division, "Clinical Hospital", Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | - Alessandra Pontillo
- Laboratory of Immunogenetics, Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Sergio Crovella
- Laboratory of Immunopathology Keizo Asami, Federal University of Pernambuco, Recife, Pernambuco, Brazil.,Department of Genetics, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Paula Sandrin-Garcia
- Laboratory of Immunopathology Keizo Asami, Federal University of Pernambuco, Recife, Pernambuco, Brazil. .,Department of Genetics, Federal University of Pernambuco, Recife, Pernambuco, Brazil.
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Thygesen SJ, Takizawa KE, Robertson AAB, Sester DP, Stacey KJ. Compromised NLRP3 and AIM2 inflammasome function in autoimmune NZB/W F1 mouse macrophages. Immunol Cell Biol 2018; 97:17-28. [PMID: 30052286 DOI: 10.1111/imcb.12193] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 07/12/2018] [Accepted: 07/25/2018] [Indexed: 11/27/2022]
Abstract
Inflammasomes are protein complexes activated by infection and cellular stress that promote caspase-1 activation and subsequent inflammatory cytokine processing and cell death. It has been anticipated that inflammasome activity contributes to autoimmunity. However, we previously showed that macrophages from autoimmune New Zealand Black (NZB) mice lack NLRP3 inflammasome function, and their absent in melanoma 2 (AIM2) inflammasome responses are compromised by high expression of the AIM2 antagonist protein p202. Here we found that the point mutation leading to lack of NLRP3 expression occurred early in the NZB strain establishment, as it is shared with the related obese strain New Zealand Obese, but not with the unrelated New Zealand White (NZW) strain. The first cross progeny of NZB and NZW mice develop more severe lupus nephritis than the NZB strain. We have compared AIM2 and NLRP3 inflammasome function in macrophages from NZB, NZW, and NZB/W F1 mice. The NZW parental strain showed strong inflammasome function, whereas the NZB/W F1 have haploinsufficient expression of NLRP3 and show reduced NLRP3 and AIM2 inflammasome responses, particularly at low stimulus strength. It remains to be established whether the low inflammasome function could contribute to loss of tolerance and the onset of autoimmunity in NZB and NZB/W F1. However, with amplifying inflammatory stimuli through the course of disease, the NLRP3 response in the NZB/W F1 may be sufficient to contribute to kidney damage at later stages of disease.
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Affiliation(s)
- Sara J Thygesen
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Karli E Takizawa
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Avril A B Robertson
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - David P Sester
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Katryn J Stacey
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, 4072, Australia
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Caneparo V, Landolfo S, Gariglio M, De Andrea M. The Absent in Melanoma 2-Like Receptor IFN-Inducible Protein 16 as an Inflammasome Regulator in Systemic Lupus Erythematosus: The Dark Side of Sensing Microbes. Front Immunol 2018; 9:1180. [PMID: 29892303 PMCID: PMC5985366 DOI: 10.3389/fimmu.2018.01180] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 05/11/2018] [Indexed: 12/22/2022] Open
Abstract
Absent in melanoma 2 (AIM2)-like receptors (ALRs) are a newly characterized class of pathogen recognition receptors (PRRs) involved in cytosolic and nuclear pathogen DNA recognition. In recent years, two ALR family members, the interferon (IFN)-inducible protein 16 (IFI16) and AIM2, have been linked to the pathogenesis of various autoimmune diseases, among which systemic lupus erythematosus (SLE) has recently gained increasing attention. SLE patients are indeed often characterized by constitutively high serum IFN levels and increased expression of IFN-stimulated genes due to an abnormal response to pathogens and/or incorrect self-DNA recognition process. Consistently, we and others have shown that IFI16 is overexpressed in a wide range of autoimmune diseases where it triggers production of specific autoantibodies. In addition, evidence from mouse models supports a model whereby ALRs are required for IFN-mediated host response to both exogenous and endogenous DNA. Following interaction with cytoplasmic or nuclear nucleic acids, ALRs can form a functional inflammasome through association with the adaptor ASC [apoptosis-associated speck-like protein containing a caspase recruitment domain (CARD)] and with procaspase-1. Importantly, inflammasome-mediated upregulation of IL-1β and IL-18 production positively correlates with SLE disease severity. Therefore, targeting ALR sensors and their downstream pathways represents a promising alternative therapeutic approach for SLE and other systemic autoimmune diseases.
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Affiliation(s)
- Valeria Caneparo
- Viral Pathogenesis Unit, Department of Public Health and Pediatric Sciences, Turin Medical School, Turin, Italy.,Virology Unit, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), Department of Translational Medicine, Novara Medical School, Novara, Italy.,Intrinsic Immunity Unit, CAAD - Center for Translational Research on Autoimmune and Allergic Disease, University of Piemonte Orientale, Novara, Italy
| | - Santo Landolfo
- Viral Pathogenesis Unit, Department of Public Health and Pediatric Sciences, Turin Medical School, Turin, Italy
| | - Marisa Gariglio
- Virology Unit, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), Department of Translational Medicine, Novara Medical School, Novara, Italy.,Intrinsic Immunity Unit, CAAD - Center for Translational Research on Autoimmune and Allergic Disease, University of Piemonte Orientale, Novara, Italy
| | - Marco De Andrea
- Viral Pathogenesis Unit, Department of Public Health and Pediatric Sciences, Turin Medical School, Turin, Italy.,Virology Unit, Interdisciplinary Research Center of Autoimmune Diseases (IRCAD), Department of Translational Medicine, Novara Medical School, Novara, Italy.,Intrinsic Immunity Unit, CAAD - Center for Translational Research on Autoimmune and Allergic Disease, University of Piemonte Orientale, Novara, Italy
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Abstract
Inflammasomes are intracellular multiprotein complexes that comprise part of the
innate immune response. Since their definition, inflammasome disorders have been
linked to an increasing number of diseases. Autoinflammatory diseases refer to
disorders in which local factors lead to the activation of innate immune cells,
causing tissue damage when in the absence of autoantigens and autoantibodies.
Skin symptoms include the main features of monogenic inflammasomopathies, such
as Cryopyrin-Associated Periodic Syndromes (CAPS), Familial Mediterranean Fever
(FMF), Schnitzler Syndrome, Hyper-IgD Syndrome (HIDS), PAPA Syndrome, and
Deficiency of IL-1 Receptor Antagonist (DIRA). Concepts from other pathologies
have also been reviewed in recent years, such as psoriasis, after the
recognition of a combined contribution of innate and adaptive immunity in its
pathogenesis. Inflammasomes are also involved in the response to various
infections, malignancies, such as melanoma, autoimmune diseases, including
vitiligo and lupus erythematosus, atopic and contact dermatitis, acne,
hidradenitis suppurativa, among others. Inhibition of the inflammasome pathway
may be a target for future therapies, as already occurs in the handling of CAPS,
through the introduction of IL-1 inhibitors. This study presents a literature
review focusing on the participation of inflammasomes in skin diseases.
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Affiliation(s)
| | - Cyro Festa
- Universidade de São Paulo (USP) - São Paulo (SP), Brazil
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Pretorius E, Akeredolu OO, Soma P, Kell DB. Major involvement of bacterial components in rheumatoid arthritis and its accompanying oxidative stress, systemic inflammation and hypercoagulability. Exp Biol Med (Maywood) 2016; 242:355-373. [PMID: 27889698 PMCID: PMC5298544 DOI: 10.1177/1535370216681549] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
We review the evidence that infectious agents, including those that become dormant within the host, have a major role to play in much of the etiology of rheumatoid arthritis and the inflammation that is its hallmark. This occurs in particular because they can produce cross-reactive (auto-)antigens, as well as potent inflammagens such as lipopolysaccharide that can themselves catalyze further inflammagenesis, including via β-amyloid formation. A series of observables coexist in many chronic, inflammatory diseases as well as rheumatoid arthritis. They include iron dysregulation, hypercoagulability, anomalous morphologies of host erythrocytes, and microparticle formation. Iron dysregulation may be responsible for the periodic regrowth and resuscitation of the dormant bacteria, with concomitant inflammagen production. The present systems biology analysis benefits from the philosophical idea of "coherence," that reflects the principle that if a series of ostensibly unrelated findings are brought together into a self-consistent narrative, that narrative is thereby strengthened. As such, we provide a coherent and testable narrative for the major involvement of (often dormant) bacteria in rheumatoid arthritis.
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Affiliation(s)
- Etheresia Pretorius
- 1 Department of Physiology, Faculty of Health Sciences, University of Pretoria, Arcadia, Pretoria 0007, South Africa
| | - Oore-Ofe Akeredolu
- 1 Department of Physiology, Faculty of Health Sciences, University of Pretoria, Arcadia, Pretoria 0007, South Africa
| | - Prashilla Soma
- 1 Department of Physiology, Faculty of Health Sciences, University of Pretoria, Arcadia, Pretoria 0007, South Africa
| | - Douglas B Kell
- 2 School of Chemistry, The University of Manchester, Manchester, M13 9PL, UK.,3 The Manchester Institute of Biotechnology, The University of Manchester, Manchester, M1 7DN, UK.,4 Centre for Synthetic Biology of Fine and Speciality Chemicals, The University of Manchester, Manchester, M1 7DN, UK
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Xiao JP, Wang XR, Zhang S, Wang HY, Ye L, Pan HF, Wang DG. Association between rs6887695 and 3'-untranslated region polymorphisms within the interleukin-12B gene and susceptibility to autoimmune diseases in Asian and European population: A meta-analysis. Autoimmunity 2016; 49:277-84. [PMID: 27068848 DOI: 10.3109/08916934.2016.1166215] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BACKGROUND The associations between rs6887695 and 3'-untranslated region (3'-UTR) single-nucleotide polymorphisms (SNPs) within interleukin-12B (IL-12B) and autoimmune diseases (ADs) remain controversial and inconclusive. The aim of this study was to evaluate the association between IL-12B (3'-UTR A/C and rs6887695 C/G SNPs) and ADs by meta-analysis. METHODS PubMed and EMBASE were exhaustively searched for studies on the association between IL-12B SNPs and ADs. Publication bias was examined by a funnel plot and Egger's test. The robustness of the pooled results was assessed by sensitivity analysis. A fixed- or a random-effects model was applied to calculate the pooled odds ratios (ORs). RESULTS A total of 34 studies were included in this meta-analysis. The pooled results demonstrated that IL-12B rs6887695 SNPs were significantly associated with the risk of ADs. However, there was no significant association between IL-12B 3'-UTR SNPs and ADs. When the studies were stratified by ethnicity, significant association between IL-12B 3'-UTR SNPs and ADs was observed in both Asian and European population. In addition, allele A within 3'-UTR of IL-12B gene was found to be a protective factor for T1DM, but a risk factor for psoriasis. CONCLUSION The IL-12B 3'-UTR and rs6887695 SNPs are associated with susceptibility to ADs.
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Affiliation(s)
- Jian-Ping Xiao
- a Department of Nephrology , The Second Affiliated Hospital of Anhui Medical University , Anhui , China and
| | - Xue-Rong Wang
- a Department of Nephrology , The Second Affiliated Hospital of Anhui Medical University , Anhui , China and
| | - Sen Zhang
- a Department of Nephrology , The Second Affiliated Hospital of Anhui Medical University , Anhui , China and
| | - Hai-Yan Wang
- a Department of Nephrology , The Second Affiliated Hospital of Anhui Medical University , Anhui , China and
| | - Lei Ye
- a Department of Nephrology , The Second Affiliated Hospital of Anhui Medical University , Anhui , China and
| | - Hai-Feng Pan
- b Department of Epidemiology and Biostatistics , School of Public Health, Anhui Medical University , Anhui , China
| | - De-Guang Wang
- a Department of Nephrology , The Second Affiliated Hospital of Anhui Medical University , Anhui , China and
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Schirmer B, Wedekind D, Glage S, Neumann D. Deletion of IL-18 Expression Ameliorates Spontaneous Kidney Failure in MRLlpr Mice. PLoS One 2015; 10:e0140173. [PMID: 26465326 PMCID: PMC4605611 DOI: 10.1371/journal.pone.0140173] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 09/21/2015] [Indexed: 01/14/2023] Open
Abstract
The role of IL-18 in the pathogenesis of systemic lupus erythematosus is still not definitively solved. In this study, we generated MRLlpr mice, which develop a disease resembling systemic lupus erythematosus, genetically devoid of IL-18 expression. These mice in comparison to IL-18-competent MRLlpr mice show reduced signs of renal pathogenesis, while other parameters such as mean survival time, lymphadenopathy, constitutive interferon-γ production, and frequency of CD3+B220+ abnormal T cells were without differences. We conclude that in the systemic lupus erythematosus syndrom IL-18 is involved specifically in the renal pathogenesis.
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Affiliation(s)
- Bastian Schirmer
- Institute of Pharmacology, Hannover Medical School, Hannover, Germany
| | - Dirk Wedekind
- Institute of Laboratory Animal Science, Hannover Medical School, Hannover, Germany
| | - Silke Glage
- Institute of Laboratory Animal Science, Hannover Medical School, Hannover, Germany
| | - Detlef Neumann
- Institute of Pharmacology, Hannover Medical School, Hannover, Germany
- * E-mail:
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Myung DS, Lee WS, Park YL, Kim N, Oh HH, Kim MY, Oak CY, Chung CY, Park HC, Kim JS, Cho SB, Kweon SS, Joo YE. Association between interleukin-18 gene polymorphism and Helicobacter pylori infection in the Korean population. Sci Rep 2015; 5:11535. [PMID: 26096341 PMCID: PMC4476145 DOI: 10.1038/srep11535] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Accepted: 05/07/2015] [Indexed: 12/13/2022] Open
Abstract
Interleukin-18 (IL-18) is a pleiotropic, pro-inflammatory cytokine that is capable of promoting the Th1 response. A predominant Th1 response induces chronic and persistent inflammatory changes in the gastric mucosa in response to Helicobacter pylori (H. pylori) infection. The aim of this study was to investigate the potential association between IL-18 gene polymorphisms and susceptibility to H. pylori infection in the Korean population. A total of 678 subjects who underwent a routine health check-up were enrolled. The IL-18 gene polymorphisms at positions −656, −607, −137, +113, and +127 were genotyped. H. pylori positivity was demonstrated in 456 subjects (67.3%). The allele frequencies of IL-18 gene polymorphisms at position −137 (rs187238) were different based on the status of H. pylori infection (G vs. C, adjusted OR 0.64 CI: 0.47–0.87, P = 0.005). The results indicate that the genetic variants in the IL-18 gene may be associated with susceptibility to H. pylori infection in the Korean population, suggesting that IL-18 plays a role in the pathogenesis of H. pylori-associated diseases. However, this finding requires further replication and validation.
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Affiliation(s)
- Dae-Seong Myung
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Wan-Sik Lee
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Young-Lan Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Nuri Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Hyung-Hoon Oh
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Mi-Young Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Chan-Young Oak
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Cho-Yun Chung
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Hyung-Chul Park
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Jong-Sun Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Sung-Bum Cho
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Seog Kweon
- Department of Preventive Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Young-Eun Joo
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
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Elevated levels of serum IL-12 and IL-18 are associated with lower frequencies of CD4(+)CD25 (high)FOXP3 (+) regulatory t cells in young patients with type 1 diabetes. Inflammation 2015; 37:1513-20. [PMID: 24677179 PMCID: PMC4174326 DOI: 10.1007/s10753-014-9878-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Type 1 diabetes is thought to involve chronic inflammation, which is manifested by the activation and expression of different inflammatory mediators. IL-12 and IL-18 are two cytokines that have been shown to exert strong proinflammatory activity and have been implicated in the pathogenesis of type 1 diabetes in mice and humans. The overproduction of proinflammatory mediators is controlled by specialized T cell subset, namely regulatory T cells that express FOXP3 transcription factor. Since IL-12 and IL-18 mediate inflammatory response and Tregs exhibit anti-inflammatory potential, we aimed to examine their reciprocal relationship in patients with type 1 diabetes. The study group consisted of 47 children diagnosed with type 1 diabetes and 28 healthy individuals. Serum levels of IL-12 and IL-18 were measured by ELISA, and the peripheral blood CD4+CD25high FOXP3+ regulatory T cell frequencies were analyzed by flow cytometry. Patients with type 1 diabetes had a decreased percentage of circulating CD4+CD25highFOXP3+ Tregs in comparison to their healthy counterparts. In addition, they produced more IL-12 and IL-18 than children from the control group. Concentrations of these cytokines positively correlated with one another, as well as with CRP and HbA1c. Moreover, the negative association between IL-12, IL-18, CRP serum levels, and the frequency of regulatory CD4+CD25highFOXP3+ Tregs was observed. IL-12 and IL-18 may have direct or indirect impact on regulatory T cell subset, which may contribute to their reduced frequency in peripheral blood of patients with type 1 diabetes mellitus.
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Inflammasomes and human autoimmunity: A comprehensive review. J Autoimmun 2015; 61:1-8. [PMID: 26005048 DOI: 10.1016/j.jaut.2015.05.001] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 05/03/2015] [Indexed: 12/20/2022]
Abstract
Inflammasomes are multi-protein complexes composed of a NOD-like receptor (NLR)/an AIM-like receptor (ALR), the adapter molecule apoptosis-associated speck-like protein that contains a CARD (ASC), and caspase-1. Active caspase-1 cleaves pro-IL-1β and pro-IL-18 to IL-1β and IL-18, resulting in inflammation. Genetic mutations in inflammasomes were first recognized to result in autoinflammatory diseases, which are characterized by the absence of both autoantibodies and autoreactive-T/B cells. However, there is increasing attention being placed on genetic polymorphisms that are involved in the components of inflammasomes, and these have implications for innate immunity and the natural history of autoimmune diseases. For example, while the NOD-like receptor family, pyrin domain containing 1 (NLRP1) haplotypes contributes to susceptibility to developing vitiligo; there are other single nucleotide polymorphisms (SNPs) that alters the susceptibility and severity of rheumatoid arthritis (RA) and juvenile idiopathic arthritis. Indeed, there are multiple factors that contribute to lowering the threshold of immunity and inflammasomes play a key role in this threshold. For example, IL-1β and IL-18 further perpetuate Th17 responses and endothelial cell damage, which potentiate a number of autoimmune diseases, including synovitis in RA, cardiovascular disease, and systemic lupus erythematosus (SLE). There is also increasing data on the role of innate immunity in experimental autoimmune encephalomyelitis (EAE), in lupus nephritis, and in a variety of autoimmune pathologies in which activation of the innate immune system is the driver for the adaptive system. Indeed, it is likely that the chronic pathology of autoimmunity is mediated in part by otherwise innocent bystander cells, augmented by inflammasomes.
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The inflammasome and lupus: another innate immune mechanism contributing to disease pathogenesis? Curr Opin Rheumatol 2015; 26:475-81. [PMID: 24992143 DOI: 10.1097/bor.0000000000000088] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE OF REVIEW The role of innate immunity in systemic lupus erythematosus (SLE) has been a rapidly expanding area of research over the last decade. Included in this rubric is the concept that activation of the inflammasome, a molecular complex that activates caspase-1 and in turn the cytokines IL-1β and IL-18, is important in lupus pathogenesis. This review will summarize the recent discoveries exploring the role of the inflammasome machinery in SLE. RECENT FINDINGS Immune complexes can activate the NLRP3 inflammasome, and SLE-derived macrophages are hyper-responsive to innate immune stimuli, leading to enhanced activation of the inflammasome and production of inflammatory cytokines. Work in several murine models suggests an important role for the NLRP3 inflammasome in mediating lupus nephritis. Caspase-1, the central enzyme of the inflammasome, is essential for the development of type I interferon responses, autoantibody production, and nephritis in the pristane model of lupus. The absence of melanoma 2 inflammasome may have protective and pathogenic roles in SLE. SUMMARY Recent evidence suggests that the inflammasome machinery is dysregulated in SLE, plays an important role in promotion of organ damage, and may mediate cross-talk between environmental triggers and the development of lupus. Further research should focus on whether inhibition of inflammasome components may serve as a viable target for therapeutic development in SLE.
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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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