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Correia Marques M, Ombrello MJ, Schulert GS. New discoveries in the genetics and genomics of systemic juvenile idiopathic arthritis. Expert Rev Clin Immunol 2024:1-12. [PMID: 38641907 DOI: 10.1080/1744666x.2024.2345868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 04/17/2024] [Indexed: 04/21/2024]
Abstract
INTRODUCTION Systemic juvenile idiopathic arthritis (sJIA) is a severe inflammatory condition with onset in childhood. It is sporadic, but elements of its stereotypical innate immune responses are likely genetically encoded by both common variants with small effect sizes and rare variants with larger effects. AREAS COVERED Genomic investigations have defined the unique genetic architecture of sJIA. Identification of the class II HLA locus as the strongest sJIA risk factor for the first time brought attention to T lymphocytes and adaptive immune mechanisms in sJIA. The importance of the human leukocyte antigen (HLA) locus was reinforced by recognition that HLA-DRB1*15 alleles are strongly associated with development of drug reactions and sJIA-associated lung disease (sJIA-LD). At the IL1RN locus, genetic variation relates to both risk of sJIA and may also predict non-response to anakinra. Finally, rare genetic variants may have critical roles in disease complications, such as homozygous LACC1 mutations in families with an sJIA-like illness, and hemophagocytic lymphohistiocytosis (HLH) gene variants in some children with macrophage activation syndrome (MAS). EXPERT OPINION Genetic and genomic analysis of sJIA holds great promise for both basic discovery of the course and complications of sJIA, and may help guide personalized medicine and therapeutic decision-making.
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Affiliation(s)
- Mariana Correia Marques
- Translational Genetics and Genomics Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, MD, USA
| | - Michael J Ombrello
- Translational Genetics and Genomics Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, MD, USA
| | - Grant S Schulert
- Division of Rheumatology, Cincinnati Children's Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
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Genetic Variants and Therapeutic Response to Anti-TNF-α Agents in Juvenile Idiopathic Arthritis: An Updated Systematic Review and Meta-analysis. J Clin Rheumatol 2022; 28:374-378. [PMID: 35777854 DOI: 10.1097/rhu.0000000000001835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Nazarova LS, Danilko KV, Malievsky VA, Bakirov AB, Viktorova TV. The role of the immune response mediator genes polymorphism in the predisposition to juvenile idiopathic arthritis. RUSSIAN OPEN MEDICAL JOURNAL 2019. [DOI: 10.15275/rusomj.2019.0408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Objective ― The aim of the work was to study the contribution of the immune response mediator genes polymorphism (TNFA rs1800629, LTA rs909253, IL1B rs16944, IL2-IL21 rs6822844, IL2RA rs2104286, IL6 rs1800795, IL10 rs1800872, MIF rs755622, CTLA4 rs3087243, NFKB1 rs28362491, PTPN22 rs2476601, PADI4 rs2240336) to the formation of the predisposition to juvenile idiopathic arthritis (JIA) and its clinical variants. Material and Methods ― The JIA group included 330 patients and the control group – 342 volunteers without autoimmune diseases from the Republic of Bashkortostan, Russia. Genotyping was conducted by the real-time polymerase chain reaction. Results ― Taking into account the differences by sex, it was established, that the alleles/genotypes of the TNFA rs1800629, LTA rs909253, IL2-IL21 rs6822844, PTPN22 rs2476601 polymorphic loci and the TNFA rs1800629*G – LTA rs909253*G haplotype are associated with the development of JIA as a whole (p<0.05); alleles/genotypes of the LTA rs909253, IL1B rs16944, IL2-IL21 rs6822844, IL2RA rs2104286, IL6 rs1800795, IL10 rs1800872, MIF rs755622, CTLA4 rs3087243, NFKB1 rs28362491, PTPN22 rs2476601 polymorphic loci and the TNFA rs1800629*G – LTA rs909253*G haplotype – with some of JIA clinical variants (p<0.05). Conclusion ― In this work, the relationship of the alleles, genotypes and haplotypes of a number of the immune response mediator genes polymorphic loci with the risk of the development of JIA and its clinical variants was established. Specific associations were observed for girls and boys, which indicates the existence of sexual dimorphism in the JIA pathogenesis.
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Jung JH, Seok H, Bang CH, Kim C, Song GG, Choi SJ. Association between interleukin-1, interleukin-6, and tumor necrosis factor-alpha polymorphisms and juvenile idiopathic arthritis: a meta-analysis. Minerva Pediatr (Torino) 2019; 74:213-221. [PMID: 31692313 DOI: 10.23736/s2724-5276.19.05638-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION In juvenile idiopathic arthritis (JIA), interleukin (IL)-1, IL-6, and tumor necrosis factor-alpha (TNF-α) are associated with development and progression of JIA. We investigated whether IL-1, IL-6, and TNF-α polymorphisms were associated with susceptibility to JIA. EVIDENCE ACQUISITION A meta-analysis was conducted on the associations between IL-1α-899 C/T, IL-1β-511 C/T, IL-6-174 G/C, and TNF-α-308 G/A and -238 G/A polymorphisms, and JIA (PubMed and Embase). EVIDENCE SYNTHESIS A total of 27 studies involving 4678 JIA patients and 7634 controls were considered in the meta-analysis. There was no association between the IL-1α-899 C/T, IL-1β-511 C/T, IL-6-174 G/C, and TNF-α-308 G/A and -238 G/A polymorphisms, and JIA in allele contrast or any other genetic models. In subgroup analysis based on subtype, except for the dominant model of TNF-α-238 G/A, systemic JIA was not significantly associated with IL-6 and TNF-α polymorphisms. In Caucasians, the dominant and additive models of IL-1β-511 C/T were significantly associated with JIA (odds ratio [OR] 1.48, 95% confidence interval [CI] 1.09-2.00, P=0.01; OR 1.46, 95% CI 1.05-2.03, P=0.02, respectively). CONCLUSIONS This meta-analysis showed no association between IL-1, IL-6, and TNF-α polymorphisms, and JIA, but the TT genotype of IL-1β -511 C/T was associated with higher prevalence of JIA in Caucasians.
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Affiliation(s)
- Jae Hyun Jung
- Korea University College of Medicine, Seoul, South Korea.,Division of Rheumatology, Department of Internal Medicine, Korea University Ansan Hospital, Ansan-si, South Korea
| | - Hongdeok Seok
- Department of Occupational and Environmental Medicine, Sahmyook Medical Center, Busan Adventist Hospital, Busan, South Korea
| | - Cho Hee Bang
- Ewha Womans University College of Nursing, Seoul, South Korea
| | - Cholhee Kim
- Department of Physical Education, Graduate School of Incheon National University, Incheon, South Korea
| | - Gwan Gyo Song
- Korea University College of Medicine, Seoul, South Korea.,Division of Rheumatology, Department of Internal Medicine, Guro Korea University Hospital, Seoul, South Korea
| | - Sung Jae Choi
- Korea University College of Medicine, Seoul, South Korea - .,Division of Rheumatology, Department of Internal Medicine, Korea University Ansan Hospital, Ansan-si, South Korea
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Li XY, Liang CH, Parkman V, Lv ZT. The association between TNF-α 238A/G and 308A/G polymorphisms and juvenile idiopathic arthritis: An updated PRISMA-compliant meta-analysis. Medicine (Baltimore) 2018; 97:e12883. [PMID: 30412082 PMCID: PMC6221581 DOI: 10.1097/md.0000000000012883] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE A previous meta-analysis concluded that TNF-α 238A/G and TNF-α 308A/G polymorphisms were not associated with the risk of juvenile idiopathic arthritis (JIA) in the overall population or Caucasian subjects. With the publication of a fair number of studies on the association between TNF-α polymorphisms and JIA in recent years, we conducted this updated meta-analysis to make a more accurate evaluation of such relationship. METHODS We adopted PubMed, EMBASE, ISI Web of Science and CNKI to identify observational studies that addressed the association between TNF-α polymorphisms and risk for JIA. The allelic effect of variant A for the risk of JIA was expressed as odds ratio (OR) along with the associated 95% confidence interval (95% CI). Meta-analyses were performed by pooling ORs and 95%CI from included studies using RevMan 5.3 software. The stratified-analysis based on ethnicity was performed to confirm the ethnicity-dependent effect on the relationship. RESULTS A total of 15 case-control studies including 2845 patients in JIA groups and 4771 patients in control groups were included in our study. The findings indicated a statistically significant association between the A allele of the TNF-alpha 238A/G polymorphism and the decreased JIA risk in Caucasians (P = .0002). The study in Iranian showed similar results (P = .0002) whereas the studies in other ethnicities failed to replicate this finding: Han (P = .29), Mexican (P = .64) and Turkish population (P = .32). TNF-α 308A/G was not statistically associated with JIA in overall subjects or Caucasians. CONCLUSION Our study confirmed the protective role of the A allele in TNF-α 238A/G but not TNF-α 308A/G against the occurrence of JIA in the Caucasian population. To exactly validate the correlation between TNF-α polymorphisms and JIA in other ethnic backgrounds, additional studies are required.
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Affiliation(s)
- Xing-yan Li
- Department of Orthopedics, The Third Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Chun-hua Liang
- Department of Orthopedics, The Third Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Virginia Parkman
- Harvard School of Dental Medicine, Division of Bone and Mineral Research, Department of Oral Medicine, Infection and Immunity, Boston, MA
| | - Zheng-tao Lv
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Genetic Polymorphisms of IL1B, IL6, and TNFα in a Chinese Han Population with Pulmonary Tuberculosis. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3010898. [PMID: 29888256 PMCID: PMC5977055 DOI: 10.1155/2018/3010898] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 03/21/2018] [Accepted: 04/08/2018] [Indexed: 02/05/2023]
Abstract
Background The factors that predispose to pulmonary tuberculosis (PTB) are not fully understood. Previous studies have shown that cytokine gene polymorphisms were associated with PTB. Objectives In this study, we have investigated the relationship between ILB, IL6, and TNFα polymorphisms and a predisposition to Mycobacterium tuberculosis (MTB) infection and PTB. Methods A total of 209 cases of PTB, 201 subjects with latent TB infection (LTBI), and 204 healthy controls (HCS) were included in this study. Logistic regression analyses under allelic, homozygous, and heterozygous models were used to calculate P values, odds ratios (ORs), and 95% confidence intervals (CIs) for assessing the association between single nucleotide polymorphisms (SNPs) and disease risk, adjusting for sex and age. Genotyping was conducted using the improved multiplex ligase detection reaction (iMLDR) method. Results When comparing PTB patients with LTBI subjects, significant associations with disease development were observed for SNPs of IL6 and TNFα. When comparing LTBI subjects with HCS, IL1B polymorphisms were significantly associated with LIBI. Haplotype analyses suggested that the CGG haplotype of IL1B was associated with an increased risk of PTB (P = 0.039, OR = 1.34, 95% CI: 1.01–1.76), while the TTGCG haplotype of TNFα was a protective factor against PTB (P = 0.039, OR = 0.66, 95% CI: 0.44–0.98). Conclusion Our study demonstrated that IL1B variants were related to LTBI and IL6 and TNFα variants were associated with PTB.
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Selmi C, Kon E, Santis MD, Favalli EG, Cimaz R, Generali E, Sinigaglia L. How advances in personalized medicine will change rheumatology. Per Med 2018; 15:75-78. [DOI: 10.2217/pme-2017-0079] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Carlo Selmi
- Rheumatology & Clinical Immunology, Humanitas Research Hospital, Rozzano, Milan, Italy
- BIOMETRA Department, University of Milan, Milan, Italy
| | - Elizaveta Kon
- Orthopedics, Humanitas Research Hospital, Rozzano, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Rozzano, Milano, Italy
| | - Maria De Santis
- Rheumatology & Clinical Immunology, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Ennio G Favalli
- Department of Rheumatology, Gaetano Pini Institute, Milan, Italy
| | - Rolando Cimaz
- Pediatric Rheumatology, Meyer Children Hospital, Florence, Italy
- Department of Neuroscience, Psychology, Pharmacology & Children Health (NEUROFARBA), University of Florence, Florence, Italy
| | - Elena Generali
- Rheumatology & Clinical Immunology, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Luigi Sinigaglia
- Department of Rheumatology, Gaetano Pini Institute, Milan, Italy
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Bek S, Bojesen AB, Nielsen JV, Sode J, Bank S, Vogel U, Andersen V. Systematic review and meta-analysis: pharmacogenetics of anti-TNF treatment response in rheumatoid arthritis. THE PHARMACOGENOMICS JOURNAL 2017; 17:403-411. [PMID: 28607508 PMCID: PMC5637244 DOI: 10.1038/tpj.2017.26] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/08/2017] [Accepted: 03/02/2017] [Indexed: 02/06/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease that affects ~1% of the Caucasian population. Over the last decades, the availability of biological drugs targeting the proinflammatory cytokine tumour necrosis factor α, anti-TNF drugs, has improved the treatment of patients with RA. However, one-third of the patients do not respond to the treatment. We wanted to evaluate the status of pharmacogenomics of anti-TNF treatment. We performed a PubMed literature search and all studies reporting original data on associations between genetic variants and anti-TNF treatment response in RA patients were included and results evaluated by meta-analysis. In total, 25 single nucleotide polymorphisms were found to be associated with anti-TNF treatment response in RA (19 from genome-wide association studies and 6 from the meta-analyses), and these map to genes involved in T cell function, NFκB and TNF signalling pathways (including CTCN5, TEC, PTPRC, FCGR2A, NFKBIB, FCGR2A, IRAK3). Explorative prediction analyses found that biomarkers for clinical treatment selection are not yet available.
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Affiliation(s)
- S Bek
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Laboratory Center, Hospital of Southern Jutland, Aabenraa, Denmark
| | - A B Bojesen
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Laboratory Center, Hospital of Southern Jutland, Aabenraa, Denmark.,Research Unit for E-mental Health, Mental Health Services in the Region of Southern Odense, Odense, Denmark
| | - J V Nielsen
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Laboratory Center, Hospital of Southern Jutland, Aabenraa, Denmark
| | - J Sode
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Laboratory Center, Hospital of Southern Jutland, Aabenraa, Denmark
| | - S Bank
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Laboratory Center, Hospital of Southern Jutland, Aabenraa, Denmark
| | - U Vogel
- Research Unit for E-mental Health, Mental Health Services in the Region of Southern Odense, Odense, Denmark.,National Research Centre for the Working Environment, Copenhagen, Denmark
| | - V Andersen
- Focused Research Unit for Molecular Diagnostic and Clinical Research, IRS-Center Sonderjylland, Laboratory Center, Hospital of Southern Jutland, Aabenraa, Denmark.,Institute of Molecular Medicine, University of Southern Denmark, Odense, Denmark.,Institute of Regional Health Research, University of Southern Denmark, Odense, Denmark.,Odense Patient Data Explorative Network, Odense University Hospital, Odense, Denmark
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Maddah M, Harsini S, Ziaee V, Moradinejad MH, Rezaei A, Zoghi S, Sadr M, Aghighi Y, Rezaei N. Association of tumour necrosis factor-alpha G/A -238 and G/A -308 single nucleotide polymorphisms with juvenile idiopathic arthritis. Int J Immunogenet 2016; 43:391-396. [DOI: 10.1111/iji.12291] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 06/28/2016] [Accepted: 09/25/2016] [Indexed: 12/20/2022]
Affiliation(s)
- M. Maddah
- Pediatrics Center of Excellence; Children's Medical Center; Tehran University of Medical Sciences; Tehran Iran
| | - S. Harsini
- Research Center for Immunodeficiencies; Children's Medical Center; Tehran University of Medical Sciences; Tehran Iran
- Network of Immunity in Infection; Malignancy and Autoimmunity (NIIMA); Universal Scientific Education and Research Network (USERN); Tehran Iran
| | - V. Ziaee
- Pediatrics Center of Excellence; Children's Medical Center; Tehran University of Medical Sciences; Tehran Iran
- Pediatric Rheumatology Research Group; Rheumatology Research Center; Tehran University of Medical Sciences; Tehran Iran
| | - M. H. Moradinejad
- Pediatrics Center of Excellence; Children's Medical Center; Tehran University of Medical Sciences; Tehran Iran
| | - A. Rezaei
- Research Center for Immunodeficiencies; Children's Medical Center; Tehran University of Medical Sciences; Tehran Iran
| | - S. Zoghi
- Network of Immunity in Infection; Malignancy and Autoimmunity (NIIMA); Universal Scientific Education and Research Network (USERN); Tehran Iran
- Department of Immunology; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - M. Sadr
- Molecular Immunology Research Center; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - Y. Aghighi
- Department of Pediatrics; Imam Khomeini Hospital; Tehran University of Medical Sciences; Tehran Iran
| | - N. Rezaei
- Research Center for Immunodeficiencies; Children's Medical Center; Tehran University of Medical Sciences; Tehran Iran
- Network of Immunity in Infection; Malignancy and Autoimmunity (NIIMA); Universal Scientific Education and Research Network (USERN); Tehran Iran
- Department of Immunology; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
- Molecular Immunology Research Center; School of Medicine; Tehran University of Medical Sciences; Tehran Iran
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Taddio A, Cattalini M, Simonini G, Cimaz R. Recent advances in the use of Anti-TNFα therapy for the treatment of juvenile idiopathic arthritis. Expert Rev Clin Immunol 2016; 12:641-9. [DOI: 10.1586/1744666x.2016.1146132] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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12
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TNF-α gene polymorphisms and juvenile idiopathic arthritis: Influence on disease outcome and therapeutic response. Semin Arthritis Rheum 2015; 45:35-41. [DOI: 10.1016/j.semarthrit.2015.02.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 01/26/2015] [Accepted: 02/16/2015] [Indexed: 11/16/2022]
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Zhou Y, Kang Y, Zhang Z, Liu J. IL-1RA +2018 polymorphism and the susceptivity to pneumoconiosis: a Meta-analysis. Int J Clin Exp Med 2014; 7:2204-2208. [PMID: 25232408 PMCID: PMC4161568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Accepted: 07/08/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND AND OBJECTIVES It has been reported that host genetic factors may play a crucial role in pneumoconiosis susceptibility. The present study aimed to study the association between IL-1RA +2018 polymorphism and pneumoconiosis by Meta-analysis. MATERIALS AND METHODS Literatures addressing the association between IL-1RA gene polymorphisms and pneumoconiosis were selected from the PubMed, Cochrane Library, EMBASE, CNKI and Wanfang databases. Statistical analyses were performed by Review Manager Software 5.0.24 and STATA 11.0 software. RESULTS 5 case-control studies with a total of 609 pneumoconiosis patients and 579 controls were retrieved. Meta-analysis results showed significant association between IL-1RA +2018 polymorphism and pneumoconiosis risk. The C allele carriers have increased risk compared with the T allele carriers (OR=1.68, 95% CI: 1.25-2.27, P=0.0007). Individuals who carry TC or CC genotype have higher risk than those with TT homozygote (OR=1.79, 95% CI: 1.18, 2.71, P=0.006). In subgroup analysis by pneumoconiosis type, a significant association between IL-1RA +2018 polymorphism and pneumoconiosis risk were found in silicosis (C vs T: OR=2.12, 95% CI: 1.63-2.76, P=0.000; TC+CC vs TT: OR=1.79, 95% CI: 1.18-2.71, P=0.006) but not in coal workers' pneumoconiosis. CONCLUSION This Meta-analysis suggests that IL-1RA +2018 polymorphism might be risk factors for pneumoconiosis, especially in silicosis.
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Affiliation(s)
- Yan Zhou
- Department of ICU, West China Hospital of Sichuan UniversityChengdu, Sichuan, China
| | - Yan Kang
- Department of ICU, West China Hospital of Sichuan UniversityChengdu, Sichuan, China
| | - Zhongwei Zhang
- Department of ICU, West China Hospital of Sichuan UniversityChengdu, Sichuan, China
| | - Jin Liu
- Department of Anesthesiology, West China Hospital of Sichuan UniversityChengdu, Sichuan, China
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15
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Abstract
The treatment of juvenile idiopathic arthritis (JIA) has substantially evolved over the past two decades. Research has been conducted and is ongoing on how therapies can best be utilized either as monotherapy or in combination for enhanced efficacy. The introduction of biologic therapies that selectively target specific cytokines has changed the acceptable clinical course of childhood arthritis. In addition to the development and utilization of new therapeutic agents, the pediatric rheumatology community has made vital progress toward defining disease activity, developing validated outcome measures, and establishing collaborative networks to assess both clinical outcomes and the long-term side effects related to therapeutics for juvenile arthritis. In this chapter, we will discuss the therapeutic evolution in JIA over the past two decades. Although the largest strides have been made with biologic agents, and these newer drugs have more rigorous data to support their use, select commonly used non-biologic therapies are included, with the discussion focused on more recent updated literature.
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Affiliation(s)
- Elizabeth A Kessler
- Division of Rheumatology, Department of Pediatrics, Children's Mercy Hospitals and Clinics, 2401 Gillham Road, Kansas City, MO 64108, USA.
| | - Mara L Becker
- Division of Rheumatology, Department of Pediatrics, Children's Mercy Hospitals and Clinics, 2401 Gillham Road, Kansas City, MO 64108, USA.
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Reinards THCM, Albers HM, Brinkman DMC, Kamphuis SSM, van Rossum MAJ, Girschick HJ, Wouters C, Hoppenreijs EPAH, Saurenmann RK, Hinks A, Ellis JA, Bakker E, Verduijn W, Slagboom P, Huizinga TWJ, Toes REM, Houwing-Duistermaat JJ, ten Cate R, Schilham MW. CD226 (DNAM-1) is associated with susceptibility to juvenile idiopathic arthritis. Ann Rheum Dis 2014; 74:2193-8. [PMID: 25057181 DOI: 10.1136/annrheumdis-2013-205138] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Accepted: 07/11/2014] [Indexed: 01/08/2023]
Abstract
OBJECTIVES Juvenile idiopathic arthritis (JIA) is considered a complex genetic autoimmune disease. We investigated the association of genetic variants previously implicated in JIA, autoimmunity and/or immunoregulation, with susceptibility to JIA. METHODS A genetic association study was performed in 639 JIA patients and 1613 healthy controls of northwest European descent. Ninety-three single nucleotide polymorphisms (SNP) were genotyped in a candidate gene approach. Results of the entire JIA patient group (all subtypes) were compared with results obtained, alternatively, with a clinically homogeneous patient group including only oligoarticular and rheumatoid factor (RF) negative polyarticular JIA patients (n=493). Meta-analyses were performed for all SNPs that have been typed in other Caucasian JIA cohorts before. RESULTS SNPs in or near PTPN22, VTCN1, the IL2-IL21 region, ANKRD55 and TNFA were confirmed to be associated with JIA (p<0.05), strengthening the evidence for involvement of these genes in JIA. In the majority of these replicated SNPs, effect sizes were larger when analysing a homogeneous patient cohort than when analysing all subtypes. We identified two novel associations with oligoarticular and RF-negative polyarticular JIA: CD226 rs763361 (OR 1.30, 95% CI 1.12 to 1.51, p=0.0006) and CD28 rs1980422 (OR 1.29, 95% CI 1.07 to 1.55, p=0.008). Meta-analyses including reported studies confirmed the association of both SNPs with susceptibility to JIA (OR 1.16, p=0.001 and OR 1.18, p=0.001, for rs763361 and rs1980422, respectively). CONCLUSIONS The CD226 gene has been identified as novel association with JIA, and a SNP near CD28 as a suggestive association. Both genes are probable candidate risk factors, since they are involved in costimulation of T cells.
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Affiliation(s)
- T H C M Reinards
- Department of Pediatrics/Pediatric Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - H M Albers
- Department of Pediatrics/Pediatric Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - D M C Brinkman
- Department of Pediatrics/Pediatric Rheumatology, Rijnland Hospital, Leiderdorp, The Netherlands
| | - S S M Kamphuis
- Department of Pediatrics/Pediatric Rheumatology, Erasmus MC Sophia Children's Hospital, Rotterdam, The Netherlands
| | - M A J van Rossum
- Department of Pediatrics/Pediatric Rheumatology, Academic Medical Centre/Emma Children's Hospital and Reade (Jan van Breemen location), Amsterdam, The Netherlands
| | - H J Girschick
- Vivantes Children's Hospital, Berlin-Friedrichshain, Germany
| | - C Wouters
- University Hospital Gasthuisberg, Leuven, Belgium
| | - E P A H Hoppenreijs
- Department of Pediatrics/Pediatric Rheumatology, St Maartenskliniek and Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - R K Saurenmann
- Zürich University Children's Hospital, Zürich, Switzerland
| | - A Hinks
- Arthritis Research UK Epidemiology Unit, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK
| | - J A Ellis
- Department of Pediatrics, The University of Melbourne, Melbourne, Australia Murdoch Childrens Research Institute, Royal Children's Hospital, Parkville, Australia
| | - E Bakker
- Centre for Human and Clinical Genetics/Laboratory for Diagnostic Genome Analysis, Leiden University Medical Center, Leiden, The Netherlands
| | - W Verduijn
- Department of Immunohematology and Bloodtransfusion, Leiden University Medical Center, Leiden, The Netherlands
| | - P Slagboom
- Department of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - T W J Huizinga
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - R E M Toes
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - R ten Cate
- Department of Pediatrics/Pediatric Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - M W Schilham
- Department of Pediatrics/Laboratory for Immunology, Leiden University Medical Center, Leiden, The Netherlands
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Oliveira A, Dinis-Oliveira RJ, Nogueira A, Gonçalves F, Silva P, Vieira C, Silvestre R, Carvalho F, Medeiros R. Interleukin-1β genotype and circulating levels in cancer patients: metastatic status and pain perception. Clin Biochem 2014; 47:1209-13. [PMID: 24747159 DOI: 10.1016/j.clinbiochem.2014.04.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2013] [Revised: 03/20/2014] [Accepted: 04/08/2014] [Indexed: 01/09/2023]
Abstract
OBJECTIVES Proinflammatory cytokines released during inflammation can cause hyperexcitability in pain transmission neurons, leading to hyperalgesia and allodynia. Polymorphisms in interleukin 1 (IL-1) family of genes (IL1A, IL1B) and in IL-1 receptor antagonist (IL-1Ra, coded by IL1RN) may therefore induce alterations in cytokine levels/effects and pain related response. Our purpose was to investigate the influence of polymorphisms in IL1A/B/RN on cytokine serum levels and its correlation with pain intensity, performance status, adverse effects, metastases and breakthrough pain in Caucasian cancer patients. DESIGN AND METHODS Serum IL-1α/β levels of 74 cancer patients were measured by competitive enzyme immunosorbent assay. All patients were also genotyped for the polymorphisms in IL1A (rs17561), IL1B (rs1143634) and IL1RN (rs419598) with Real-Time PCR. Results were then correlated to the appearance of bone or CNS metastases and several pain-related parameters. RESULTS IL-1β rs1143634 homozygous for T allele were associated with lower levels of IL1-β (p=0.032, Mann-Whitney test) and presented a trend for lower levels of pain (p=0.06, Fisher's Exact Test). Also, IL1-β levels were related with cancer onset status, since a four-fold increase probability of metastatic disease was observed in high IL-1β individuals (OR=4.074, p=0.010, Pearson χ(2) test). Among the female patients presenting metastatic disease and carriers of the TT genotype we observed a trend to lower levels of IL1-β (p=0.053, Pearson χ(2) test). CONCLUSIONS Our results indicate that genetic variation at IL1-β gene may influence serum levels of IL1-β, with proportional consequences in cancer-related pain.
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Affiliation(s)
- Ana Oliveira
- REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal; Molecular Oncology GRP and Virology LB, Portuguese Institute of Oncology-Porto, Porto, Portugal; IINFACTS - Institute of Research and Advanced Training in Health Sciences and Technologies, Department of Sciences, Advanced Institute of Health Sciences - North, CESPU, CRL, Gandra, Portugal.
| | - Ricardo J Dinis-Oliveira
- REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal; IINFACTS - Institute of Research and Advanced Training in Health Sciences and Technologies, Department of Sciences, Advanced Institute of Health Sciences - North, CESPU, CRL, Gandra, Portugal; Department of Legal Medicine and Forensic Sciences, Faculty of Medicine, University of Porto, Porto, Portugal; Center of Forensic Sciences (CENCIFOR), Portugal
| | - Augusto Nogueira
- Molecular Oncology GRP and Virology LB, Portuguese Institute of Oncology-Porto, Porto, Portugal
| | - Ferraz Gonçalves
- Palliative Care Unit, Portuguese Institute of Oncology-Porto, Porto, Portugal
| | - Paula Silva
- Palliative Care Unit, Portuguese Institute of Oncology-Porto, Porto, Portugal
| | - Cláudia Vieira
- Medical Oncology Department, Francisco Gentil Portuguese Institute of Oncology, Porto, Portugal
| | - Ricardo Silvestre
- IINFACTS - Institute of Research and Advanced Training in Health Sciences and Technologies, Department of Sciences, Advanced Institute of Health Sciences - North, CESPU, CRL, Gandra, Portugal
| | - Félix Carvalho
- REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Rui Medeiros
- Molecular Oncology GRP and Virology LB, Portuguese Institute of Oncology-Porto, Porto, Portugal; ICBAS, Abel Salazar Institute for the Biomedical Sciences, Porto, Portugal; Faculty of Health Sciences of Fernando Pessoa University, Porto, Portugal; LPCC, Portuguese League Against Cancer, Regional Center of the North, Porto, Portugal.
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TNF-α Polymorphisms in Juvenile Idiopathic Arthritis: Which Potential Clinical Implications? Int J Rheumatol 2012; 2012:756291. [PMID: 23133455 PMCID: PMC3485518 DOI: 10.1155/2012/756291] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 07/13/2012] [Accepted: 08/03/2012] [Indexed: 02/06/2023] Open
Abstract
Whether tumor necrosis factor alpha (TNF-α) gene polymorphisms (SNPs) influence disease susceptibility and treatment of patients with juvenile idiopathic arthritis (JIA) is presently uncertain. TNF-α is one of the most important cytokine involved in JIA pathogenesis. Several single nucleotide polymorphisms (SNPs) have been identified within the region of the TNF-α gene but only a very small minority have proven functional consequences and have been associated with susceptibility to JIA. An association between some TNF-α SNPs and adult rheumatoid arthritis (RA) susceptibility, severity and clinical response to anti-TNF-α treatment has been reported. The most frenquetly studied TNF-α SNP is located at -308 position, where a substitution of the G allele with the rare A allele has been found. The presence of the allele -308A is associated to JIA and to a poor prognosis. Besides, the -308G genotype has been associated with a better response to anti-TNF-α therapy in JIA patients, confirming adult data. Psoriatic and oligoarticular arthritis are significantly associated to the -238 SNP only in some works. Studies considering other SNPs are conflicting and inconclusive. Large scale studies are required to define the contribution of TNF-α gene products to disease pathogenesis and anti-TNF-α therapeutic efficacy in JIA.
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Lacruz-Guzmán D, Torres-Moreno D, Pedrero F, Romero-Cara P, García-Tercero I, Trujillo-Santos J, Conesa-Zamora P. Influence of polymorphisms and TNF and IL1β serum concentration on the infliximab response in Crohn's disease and ulcerative colitis. Eur J Clin Pharmacol 2012; 69:431-8. [PMID: 22960943 DOI: 10.1007/s00228-012-1389-0] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Accepted: 08/23/2012] [Indexed: 12/11/2022]
Abstract
AIM Inflammatory bowel diseases (IBD), such as Crohn's disease (CD) and ulcerative colitis (UC), are partially attributable to an increased secretion of proinflamatory cytokines, such as tumour necrosis factor (TNF) and interleukin-1β (IL1β), which play essential roles in the disease pathogenesis and are target molecules for specific therapy. Given the inter-individual variability in the response to the anti-TNF monoclonal antibody infliximab, the aim of our study was to explore the predictive value of TNF and/or IL1β as surrogate markers of infliximab response. METHODS Serial serum concentrations of TNF and IL1β and TNF promoter region and IL1B polymorphisms were determined in 47 patients (29 CD and 18 UC) receiving infliximab and correlated with treatment response. RESULTS Baseline serum concentrations of TNF and IL1β were higher in UC patients than in CD patients (p = 0.0097 and 0.0024, respectively). CD patients showing <0.64 pg/ml IL1β at baseline were more frequently responders than non-responders (p = 0.036), and the C allele of the IL1B polymorphism was associated with higher IL1β serum concentrations (p = 0.026) and with poorer clinical remission after 14 weeks of infliximab treatment. No significant association was found between serum TNF concentration or TNF polymorphism and patient response to infliximab. CONCLUSION This is the first study evaluating the pharmacogenetic role of the rs1143634 polymorphism of IL1B and TNF polymorphisms in infliximab-treated IBD patients. We found an association between the rs1143634 C allele and higher serum IL1β concentrations and a lower response to infliximab treatment in CD patients that warrants the interest of future studies in larger and independent series.
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Affiliation(s)
- Diana Lacruz-Guzmán
- Pharmacy Department, Santa Lucía General University Hospital, Cartagena, Spain.
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Lee YH, Bae SC, Song GG. TNF promoter -308 A/G and -238 A/G polymorphisms and juvenile idiopathic arthritis: a meta-analysis. Mol Biol Rep 2012; 39:8497-503. [PMID: 22696185 DOI: 10.1007/s11033-012-1704-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Accepted: 06/06/2012] [Indexed: 11/29/2022]
Abstract
The aim of this study was to determine whether the tumor necrosis factor (TNF) promoter polymorphisms confer susceptibility to juvenile idiopathic arthritis (JIA). A meta-analysis was conducted on the A allele of the TNF -308 A/G and -238 A/G polymorphisms. The nine comparison studies including 1,132 JIA patients and 1,663 controls were included in the meta-analysis and consisted of 7 European, 1 Mexican, and 1 Turkish population. No association was found between JIA and the TNF -308 A allele and the TNF -238 A allele (odds ratio [OR] = 1.211, 95 % confidence interval [CI] = 0.917-1.598, P = 0.177; OR = 1.135, 95 % CI = 0.603-1.861, P = 0.615, respectively). Stratification by ethnicity did not show the association of the TNF -308 and -238 polymorphisms with JIA in Europeans. Mexicans were found to have lower prevalences of A alleles (2.9, 4.1 %) of the TNF -308 A/G and -238 A/G polymorphisms than any other population studied, and the Turkish population the highest (31.2, 26.9 %). This meta-analysis shows no association between the A alleles of the TNF -308 A/G or -238 A/G polymorphisms and JIA in Europeans, but that the prevalences of these alleles are ethnicity dependent.
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Affiliation(s)
- Young Ho Lee
- Division of Rheumatology, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, 126-1, Anam-dong 5-ga, Seongbuk-gu, Seoul 136-705, Korea.
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Trevilatto PC, de Souza Pardo AP, Scarel-Caminaga RM, de Brito RB, Alvim-Pereira F, Alvim-Pereira CC, Probst CM, Garlet GP, Sallum AW, Line SR. Association of IL1 gene polymorphisms with chronic periodontitis in Brazilians. Arch Oral Biol 2011; 56:54-62. [DOI: 10.1016/j.archoralbio.2010.09.004] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Revised: 08/21/2010] [Accepted: 09/07/2010] [Indexed: 02/02/2023]
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Etanercept reduces matrix metalloproteinase-9 level in children with polyarticular juvenile idiopathic arthritis and TNF-α-308GG genotype. J Physiol Biochem 2010; 66:173-80. [DOI: 10.1007/s13105-010-0022-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2009] [Accepted: 05/11/2010] [Indexed: 10/19/2022]
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Julián K, Terrada C, Quartier P, LeHoang P, Bodaghi B. Uveitis Related to Juvenile Idiopathic Arthritis: Familial Cases and Possible Genetic Implication in the Pathogenesis. Ocul Immunol Inflamm 2010; 18:172-7. [DOI: 10.3109/09273941003678837] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Abstract
Juvenile idiopathic arthritis (JIA) refers to a group of chronic childhood arthropathies of unknown etiology, currently classified into subtypes primarily on the basis of clinical features. Research has focused on the hypothesis that these subtypes arise through distinct etiologic pathways. In this Review, we discuss four subtypes of JIA: persistent oligoarticular, extended oligoarticular, rheumatoid-factor-positive polyarticular and rheumatoid-factor-negative polyarticular. These subtypes differ in prevalence between ethnic groups and are associated with different HLA alleles. Non-HLA genetic risk factors have also been identified, some of which reveal further molecular differences between these subtypes, while others suggest mechanistic overlap. Investigations of immunophenotypes also provide insights into subtype differences: adaptive immunity seems to have a prominent role in both polyarticular and oligoarticular JIA, and the more-limited arthritis observed in persistent oligoarticular JIA as compared with extended oligoarticular JIA may reflect more-potent immunoregulatory T-cell activity in the former. Tumor necrosis factor seems to be a key mediator of both polyarticular and oligoarticular JIA, especially in the extended oligoarticular subtype, although elevated levels of other cytokines are also observed. Limited data on monocytes, dendritic cells, B cells, natural killer T cells and neutrophils suggest that the contributions of these cells differ across subtypes of JIA. Within each subtype, however, common pathways seem to drive joint damage.
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Dutra WO, Moreira PR, Souza PEA, Gollob KJ, Gomez RS. Implications of cytokine gene polymorphisms on the orchestration of the immune response: lessons learned from oral diseases. Cytokine Growth Factor Rev 2009; 20:223-32. [PMID: 19502097 DOI: 10.1016/j.cytogfr.2009.05.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Over the past 10 years, a plethora of information concerning the influence of gene polymorphisms on cytokine expression has been made available in the literature. Significant contribution to this field has come from studies of oral diseases, one of the widest spread health problems in the world, affecting hundreds of millions worldwide. Here we will discuss the importance of studies of gene polymorphism towards the identification of susceptible groups or prognostic indicators of oral disease. Additionally, we will highlight the differences in data obtained from genetically diverse populations and review the application of cytokine gene polymorphisms studies in oral diseases in autoimmune processes and parasitic infections.
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Affiliation(s)
- Walderez O Dutra
- Laboratory of Cell-Cell Interactions, Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, CEP 31270-901, Belo Horizonte-MG, Brazil.
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MOURÃO ANAFILIPA, CAETANO-LOPES JOANA, COSTA PAULA, CANHÃO HELENA, SANTOS MARIAJOSÉ, PINTO PATRÍCIA, BRITO IVA, NICOLA PAULO, CAVALEIRO JOÃO, TELES JOSÉ, SOUSA ARTUR, GOMES JOSÉMELO, BRANCO JAIME, da COSTA JOSÉTEIXEIRA, PEDRO JOÃOGOMES, de QUEIROZ MÁRIOVIANA, FONSECA JOÃOEURICO. Tumor Necrosis Factor-α −308 Genotypes Influence Inflammatory Activity and TNF-α Serum Concentrations in Children with Juvenile Idiopathic Arthritis. J Rheumatol 2009; 36:837-42. [DOI: 10.3899/jrheum.080615] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Objective.Considering the relevance of tumor necrosis factor-α (TNF-α) in the pathophysiology of juvenile idiopathic arthritis (JIA), it is likely that polymorphisms in its promoter area may be relevant in disease susceptibility and activity. We investigated if clinical measures of JIA activity and TNF-α serum concentrations were associated with TNF-α −308 genotypes.Methods.Portuguese patients with JIA in 5 pediatric rheumatology centers were recruited consecutively, along with a control group of healthy subjects. Demographic and clinical data and blood samples were collected from each patient. DNA was extracted for analysis of TNF-α gene promoter polymorphisms at position −308 by restriction fragment-length polymorphism.Results.One hundred fourteen patients and 117 controls were evaluated; 57% of patients presented the oligoarticular subtype, 25% the polyarticular subtype, 8% the systemic subtype, and 9% had enthesitis-related arthritis and 5% psoriatic arthritis. Twenty-four percent of the patients presented the −308 GA/AA genotypes and 76% the −308 GG genotype, similar to findings in controls. Patients with the −308 GA/AA genotype had higher degree of functional impairment, erythrocyte sedimentation rate, 100-mm visual analog scale score for disease activity, and TNF-α levels compared to those with the −308 GG genotype.Conclusion.TNF-α −308 GA/AA genotypes were found to be related to higher inflammatory activity and worse measures of disease activity in Portuguese patients with JIA. They were not associated with susceptibility to JIA.
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Cordeiro CA, Moreira PR, Costa GC, Dutra WO, Campos WR, Oréfice F, Teixeira AL. Interleukin-1 gene polymorphisms and toxoplasmic retinochoroiditis. Mol Vis 2008; 14:1845-9. [PMID: 18941541 PMCID: PMC2568892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2008] [Accepted: 08/25/2008] [Indexed: 11/30/2022] Open
Abstract
PURPOSE It has been proposed that cytokine gene polymorphisms can predispose individuals to disease by enhancing inflammatory processes. Considering the relevance of interleukin-1 (IL-1) in the pathogenesis of toxoplasmic retinochoroiditis (TR), we investigated whether IL1A -889 C/T and IL1B +3954C/T promoter polymorphisms are associated with TR in humans. METHODS We performed a cross-sectional study that involved 100 Brazilian TR patients and 100 age- and gender-matched control subjects. Genomic DNA was obtained from oral swabs of all participants and amplified using polymerase chain reaction (PCR) with specific primers flanking the locus -889 of IL1A and +3954 of IL1B. PCR products were submitted to digestion and analyzed by PAGE to distinguish C and T alleles. RESULTS There was no significant difference in the genotype or allele distributions of the IL1A -889 C/T and IL1B +3954C/T polymorphisms in patients with TR when compared with controls. However, in a subgroup analysis, the frequency of genotype and allele distributions of IL1A -889 C/T differed significantly between TR patients with and without recurrent episodes. CONCLUSION This study suggests that the genotypes related with a high production of IL-1a may be associated with the recurrence of TR.
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Affiliation(s)
- Cynthia A. Cordeiro
- Uveitis Section, Department of Ophthalmology, School of Medicine, Belo Horizonte, Brazil
| | - Paula R. Moreira
- Department of Morphology, Institute of Biological Sciences, Belo Horizonte, Brazil
| | - Germano C. Costa
- Department of Morphology, Institute of Biological Sciences, Belo Horizonte, Brazil
| | - Walderez O. Dutra
- Department of Morphology, Institute of Biological Sciences, Belo Horizonte, Brazil
| | - Wesley R. Campos
- Uveitis Section, Department of Ophthalmology, School of Medicine, Belo Horizonte, Brazil
| | - Fernando Oréfice
- Uveitis Section, Department of Ophthalmology, School of Medicine, Belo Horizonte, Brazil
| | - Antônio L. Teixeira
- Department of Internal Medicine, School of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil
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Prahalad S, Glass DN. A comprehensive review of the genetics of juvenile idiopathic arthritis. Pediatr Rheumatol Online J 2008; 6:11. [PMID: 18644131 PMCID: PMC2515830 DOI: 10.1186/1546-0096-6-11] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2008] [Accepted: 07/21/2008] [Indexed: 12/29/2022] Open
Abstract
Juvenile idiopathic arthritis (JIA) is the most common chronic arthropathy of childhood which is believed to be influenced by both genetic and environmental factors. The progress in identifying genes underlying JIA susceptibility using candidate gene association studies has been slow. Several associations between JIA and variants in the genes encoding the human leukocyte antigens (HLA) have been confirmed and replicated in independent cohorts. However it is clear that genetic variants outside the HLA also influence susceptibility to JIA. While a large number of non-HLA candidate genes have been tested for associations, only a handful of reported associations such as PTPN22 have been validated. In this review we discuss the principles behind genetic studies of complex traits like JIA, and comprehensively catalogue non-HLA candidate-gene association studies performed in JIA to date and review several validated associations. Most candidate gene studies are underpowered and do not detect associations, and those that do are often not replicated. We also discuss the principles behind genome-wide association studies and discuss possible implications for identifying genes underlying JIA. Finally we discuss several genetic variants underlying multiple clinically distinct autoimmune phenotypes.
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Affiliation(s)
- Sampath Prahalad
- Assistant Professor of Pediatrics, Division of Immunology and Rheumatology, Department of Pediatrics, University of Utah School of Medicine, P.O Box 581289 Salt Lake City, UT 84158-1289, USA
| | - David N Glass
- Professor of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., MLC 7030, Cincinnati, OH 45229, USA
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Rahman P, O’Rielly DD. Psoriatic arthritis: genetic susceptibility and pharmacogenetics. Pharmacogenomics 2008; 9:195-205. [PMID: 18370848 DOI: 10.2217/14622416.9.2.195] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Psoriatic arthritis (PsA) is an inflammatory arthritis associated with psoriasis. The etiology of PsA is unknown; however, there is mounting evidence for a strong genetic contribution to PsA. A few disease-related genes have already been identified in PsA. Cytokines associated with PsA appear to be the most promising targets for pharmacogenetics. Blockade of TNF-α and IL-12/23 is associated with a marked clinical response to PsA and/or psoriasis, implying a pivotal role of these cytokines in the pathogenesis of these two disease entities. To date, only the -308 variant of the TNF-α promoter gene has been shown to be important in predicting response to TNF-α blockade in inflammatory arthritis.
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Affiliation(s)
- Proton Rahman
- Memorial University, Discipline of Rheumatology, 154 LeMarchant Rd, St John’s, NL, A1C-5B8, Canada
| | - Darren D O’Rielly
- Memorial University, School of Pharmacy and Faculty of Medicine, Health Science Centre, 300 Prince Philip Drive, St John’s, NL, A1B 3V6, Canada
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