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Zhai C, Li S, Feng W, Shi W, Wang J, Wang Q, Chai L, Zhang Q, Yan X, Li M. Association of interleukin-17a rs2275913 gene polymorphism and asthma risk: a meta-analysis. Arch Med Sci 2018; 14:1204-1211. [PMID: 30393475 PMCID: PMC6209699 DOI: 10.5114/aoms.2018.73345] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 11/14/2016] [Indexed: 01/05/2023] Open
Abstract
INTRODUCTION Interleukin-17A (IL-17A), a pro-inflammatory cytokine, plays an important role in the pathogenesis of asthma. A number of studies have investigated the relationship between IL-17A rs2275913 polymorphism and risk of asthma. However, the results obtained are inconclusive. The aim of this meta-analysis is to clarify the relationship between IL-17A rs2275913 polymorphism and asthma risk. MATERIAL AND METHODS Searches were conducted in PubMed, Web of Science, Elsevier, Google Scholar, Wanfang and Chinese National Knowledge Infrastructure (CNKI) databases, and data were extracted from eligible studies by two independent reviewers. The pooled odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were calculated. Publication bias, heterogeneity and sensitivity analysis were also assessed. RESULTS Ten studies with a total of 5016 subjects were included. Overall, the results indicated a significant association between the IL-17A rs2275913 polymorphism and the risk of asthma (G vs. A: OR = 0.866, 95% CI: 0.789-0.951, p = 0.003; GG+GA vs. AA: OR = 0.752, 95% CI: 0.633-0.895, p = 0.001). In subgroup analysis by age and ethnicity, the G allele of rs2275913 in IL-17A was significantly associated with a reduced risk of asthma in children and Asians. CONCLUSIONS The results of this meta-analysis indicate that the G allele of rs2275913 in IL-17A is a protective factor for the development of asthma.
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Affiliation(s)
- Cui Zhai
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Shaojun Li
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Wei Feng
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Wenhua Shi
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Jian Wang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Qingting Wang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Limin Chai
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Qianqian Zhang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Xin Yan
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Manxiang Li
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
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Liang T, Xu YT, Zhang Y, Cai PC, Hu LH. Interleukin-17A and -17F single nucleotide polymorphisms associate with susceptibility of asthma in Chinese Han population. Hum Immunol 2018; 79:736-742. [PMID: 30036556 DOI: 10.1016/j.humimm.2018.07.227] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/09/2018] [Accepted: 07/17/2018] [Indexed: 11/15/2022]
Abstract
Interleukin 17 (IL-17) plays important roles in the progression of asthma. Genetic variants in the Il-17 may influence the immunopathogenesis of many diseases. Many studies have investigated the relevance of IL-17 polymorphism with cancers or immune diseases, including asthma. In this study, single nucleotide polymorphisms (SNPs) of IL-17 were explored by PCR-RFLP and verified by sequencing method. The frequencies of genotypes and alleles were analyzed. Haplotypes were analyzed with the SHEsis online program. The relationship between the genotypes of SNPs and IgE level was also investigated. The False Discovery Rate (FDR) correction was performed (P-adjusted < 0.05). The frequencies of A allele, GA and (GA + AA) genotype of rs3748067 were significantly higher in asthma patients. As for rs763780, the C allele in patients was more frequent than healthy controls. In addition, we found C carriers (CT + CC) were significantly higher in asthma patients. We further found that the haplotype CT for IL-17F (rs763780/rs2397084) was associated with an increased susceptibility of asthma, but this association did not survive after FDR correction. The level of serum total IgE in mutant group (GA + AA) of rs3748067 was significantly higher than the wild genotype (GG) group and control group. These results suggested that IL-17 SNPs, but not haplotypes may be associated with the susceptibility of asthma in Chinese Han population from central China.
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Affiliation(s)
- Tao Liang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yi Ting Xu
- Central Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yang Zhang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Peng Cheng Cai
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Li Hua Hu
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Jin Y, Deng Z, Cao C, Li L. IL-17 polymorphisms and asthma risk: a meta-analysis of 11 single nucleotide polymorphisms. J Asthma 2015; 52:981-8. [PMID: 26300019 DOI: 10.3109/02770903.2015.1044251] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE There has been significant interest in the association between asthma and the polymorphisms of IL-17A and IL-17F for a period of time. This work aims to present a clearer relationship between asthma and the polymorphisms of IL-17A and IL-17F. METHOD Searches were performed in Medline, EMBASE, and the Chinese National Knowledge Infrastructure (CNKI) databases. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to assess the relationship between polymorphisms of IL-17A and IL-17F and asthma. RESULTS Nine studies comprising 3650 asthmatics and 3370 controls were included in this meta-analysis for all single nucleotide polymorphisms (SNPs) (2-6 per SNP). Our study examined the polymorphisms of IL-17F rs1889570 (C/T) (CC versus TT: OR = 0.55, 95%CI = 0.41-0.75; CT versus TT: OR = 0.54, 95%CI = 0.40-0.72; CC/CT versus TT: OR = 0.55, 95%CI = 0.42-0.72; CC versus CT/TT, OR = 1.83, 95%CI = 1.39-2.41), IL-17A rs4711998(A/G) (AA/AG versus GG: OR = 0.67, 95%CI = 0.46-0.98), and IL-17A rs3819024(A/G) (AA versus GG: OR = 1.77, 95%CI = 1.39-2.25) and found they were significantly related to the risk of asthma. CONCLUSION Our systematic review showed that IL-17F rs1889570(C/T), IL-17A rs4711998(A/G) and IL-17A rs3819024(A/G) may be potential risk factors for asthma susceptibility.
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Affiliation(s)
- Yan Jin
- a Department of Respiratory Disease , Taizhou Municipal Hospital , Taizhou , China and
| | - Zaichun Deng
- b Department of Respiratory Medicine , Affiliated Hospital of School of Medicine, Ningbo University , Ningbo , China
| | - Chao Cao
- b Department of Respiratory Medicine , Affiliated Hospital of School of Medicine, Ningbo University , Ningbo , China
| | - Longxiang Li
- a Department of Respiratory Disease , Taizhou Municipal Hospital , Taizhou , China and
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Kurosawa M, Yukawa T, Hozawa S, Mochizuki H. Recent advance in investigation of gene polymorphisms in Japanese patients with aspirin-exacerbated respiratory disease. Allergol Immunopathol (Madr) 2015; 43:92-100. [PMID: 25224359 DOI: 10.1016/j.aller.2014.06.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 05/05/2014] [Accepted: 06/02/2014] [Indexed: 11/26/2022]
Abstract
Aspirin-exacerbated respiratory disease (AERD) is a complex clinical syndrome characterised by severe asthmatic attack upon treatment with aspirin and/or non-steroidal anti-inflammatory drugs (NSAIDs). Genetic predisposition has been considered as a crucial determinant and candidate genes have concentrated especially on cysteinyl leukotrienes (LTs)-related genes as the inhibitory action of aspirin and NSAIDs on cyclooxygenase activity may cause overproduction of cysteinyl LTs. However, conflicting results have been reported, in parallel with replication studies in different ethnic groups. Thus, future areas of investigations need to focus on comprehensive approaches towards the discovery of other genetic biomarkers. Unfortunately, few papers have been reported about gene polymorphisms in Japanese patients with AERD. Here, we described on our recent genetic investigations on B2ADR, IL-13, IL-17A, CYP2C19, TBXA2R, CRTH2 and HSP70. This review indicates potential genetic biomarkers contributing to the early diagnosis of AERD, which may include CYP2C19 and HSP70 gene polymorphisms, and future validation studies in independent population are required to provide reassurance about our findings.
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Wang JY, Shyur SD, Lam FWS, Wu LSH. Polymorphisms of EHF-ELF5 genomic region and its association with pediatric asthma in the Taiwanese population. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2014; 49:879-884. [PMID: 25648666 DOI: 10.1016/j.jmii.2014.11.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 11/04/2014] [Accepted: 11/29/2014] [Indexed: 11/27/2022]
Abstract
BACKGROUND The EHF and ELF5 genes, located on chromosome 11p and linked to asthma phenotypes, are high-potential candidate genes conferring asthma susceptibility. The purpose of this study was to investigate the genetic association among single nucleotide polymorphisms (SNPs) of EHF and ELF5, and their relationship with asthma in the Taiwanese population. METHODS We selected and performed genotyping on 16 SNPs that encompass the genomic region of EHF and ELF5 in Taiwanese children with or without asthma. A total of 1983 children, 523 in the test group and 619 and 842 in two validation groups, were recruited for this study. RESULTS The SNP rs3910901, located in the 5' upstream region of ELF5, was found to have a weak association (p = 0.043) with asthma in the odds ratio analysis. The genotype distribution was similar in all comparison groups, but the CC genotype was more frequent in asthma patients. Logistic regression adjusted allergy comorbidity showed obviously diluted association. CONCLUSION The results indicated that SNP rs3910901 may have a minor impact on pediatric asthma in the Taiwanese population.
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Affiliation(s)
- Jiu-Yao Wang
- Department of Pediatrics and Institute of Molecular Medicine, College of Medicine, National Cheng-Kung University, Tainan, Taiwan
| | - Shyh-Dar Shyur
- Department of Pediatrics, Mackay Memorial Hospital, Taipei, Taiwan
| | - Frada Wei-Sam Lam
- Division of Research Development, Vita Genomics Inc., Taipei, Taiwan
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Chang JC, Kuo HC, Hsu TY, Ou CY, Liu CA, Chuang H, Liang HM, Huang HW, Yang KD. Different genetic associations of the IgE production among fetus, infancy and childhood. PLoS One 2013; 8:e70362. [PMID: 23936416 PMCID: PMC3731352 DOI: 10.1371/journal.pone.0070362] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 06/19/2013] [Indexed: 11/18/2022] Open
Abstract
Elevation of serum IgE levels has long been associated with allergic diseases. Many genes have been linked to IgE production, but few have been linked to the developmental aspects of genetic association with IgE production. To clarify developmental genetic association, we investigated what genes and gene-gene interactions affect IgE levels among fetus, infancy and childhood in Taiwan individuals. A birth cohort of 571 children with completion of IgE measurements from newborn to 1.5, 3, and 6 years of age was subject to genetic association analysis on the 384-customized SNPs of 159 allergy candidate genes. Fifty-three SNPs in 37 genes on innate and adaptive immunity, and stress and response were associated with IgE production. Polymorphisms of the IL13, and the HLA-DPA1 and HLA-DQA1 were, respectively, the most significantly associated with the IgE production at newborn and 6 years of age. Analyses of gene-gene interactions indentified that the combination of NPSR1, rs324981 TT with FGF1, rs2282797 CC had the highest risk (85.7%) of IgE elevation at 1.5 years of age (P = 1.46×10−4). The combination of IL13, CYFIP2 and PDE2A was significantly associated with IgE elevation at 3 years of age (P = 5.98×10−7), and the combination of CLEC2D, COLEC11 and CCL2 was significantly associated with IgE elevation at 6 years of age (P = 6.65×10−7). Our study showed that the genetic association profiles of the IgE production among fetus, infancy and childhood are different. Genetic markers for early prediction and prevention of allergic sensitization may rely on age-based genetic association profiles.
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Affiliation(s)
- Jen-Chieh Chang
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
- Genomic and Proteomic Core Laboratory, Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Ho-Chang Kuo
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Te-Yao Hsu
- Department of Obstetrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chia-Yu Ou
- Department of Obstetrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chieh-An Liu
- Department of Pediatrics, Po-Jen Hospital, Kaohsiung, Taiwan
| | - Hau Chuang
- Genomic and Proteomic Core Laboratory, Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Hsiu-Mei Liang
- Department of Obstetrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Hurng-Wern Huang
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
- * E-mail: (KDY); (HWH)
| | - Kuender D. Yang
- The Department of Medical Research and Development, Show Chwan Memorial Hospital in Chang Bing, Changhua, Taiwan
- Institute of Clinical Medical Sciences, National Yang Ming University, Taipei City, Taiwan
- * E-mail: (KDY); (HWH)
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Wu LSS, Sjakste T, Sakalauskas R, Sitkauskiene B, Paramonova N, Gasiuniene E, Jan RL, Wang JY. The burden of allergic asthma in children: a landscape comparison based on data from Lithuanian, Latvian, and Taiwanese populations. Pediatr Neonatol 2012; 53:276-82. [PMID: 23084718 DOI: 10.1016/j.pedneo.2012.08.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Accepted: 08/02/2012] [Indexed: 10/27/2022] Open
Abstract
Asthma is one of the most common chronic respiratory diseases with an increasing prevalence and financial burden worldwide. This disease affects individuals in all countries and all ethnic groups; however, prevalence rates of asthma have been reported to vary significantly between different regions. To understand the origin of asthma and to manage it effectively, it is necessary to analyze the genetic and environmental factors that cause these geographic differences. Therefore, we aimed to review published data from the investigations of asthma patients in Eastern Europe, represented by Latvia and Lithuania, and of patients from Eastern Asia represented by Taiwan. We hope that some of the common factors can be identified and different variants can be compared among these three countries for development of a new strategy to prevent childhood asthma.
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Kohyama K, Abe S, Kodaira K, Yukawa T, Hozawa S, Sagara H, Kurosawa M. IL-13 and IL-17A gene polymorphisms in Japanese patients with aspirin-exacerbated respiratory disease. Ann Allergy Asthma Immunol 2011; 107:510-6. [PMID: 22123380 DOI: 10.1016/j.anai.2011.09.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 09/01/2011] [Accepted: 09/05/2011] [Indexed: 11/29/2022]
Abstract
BACKGROUND The role of interleukin (IL) 13 and IL-17A in aspirin-exacerbated respiratory disease (AERD) remains unknown. OBJECTIVE To analyze the IL-13 and IL-17A gene polymorphisms in Japanese patients with AERD. METHODS The single-nucleotide polymorphisms in each gene were examined in patients with AERD, patients with aspirin-tolerant asthma (ATA), and healthy controls. RESULTS Frequencies of the TT/CT genotype of the IL-13 -1111C>T gene were higher than frequencies of the CC genotype in AERD patients compared with ATA patients (P < .001). In female patients with AERD, frequencies of the TT/CT genotype were higher than those of the CC genotype compared with female patients with ATA (P < .001). However, genotype frequencies of IL-13 Arg110Gln did not differ between AERD and ATA patients. Frequencies of the CC genotype of the IL-17A -737C>T gene were higher than those of the TT/CT genotype in AERD patients compared with ATA patients (P = .02). In female patients with AERD, frequencies of the CC genotype were higher than those of the TT/CT genotype compared with female patients with ATA (P = .03). Forced expiratory volume in 1 second (percentage predicted) in AERD patients with the CC genotype of the IL-13 -1111C>T gene was lower than that in the patients with the TT/CT genotype. AERD patients with the TT/CT genotype of the IL-17A -737C>T gene had a higher peripheral total eosinophil count compared with the patients with the CC genotype. The comparison of the clinical characteristics according to the IL-13 Arg110Gln gene polymorphism showed no difference. CONCLUSIONS These findings suggest that the IL-13 -1111C>T and IL-17A -737C>T gene sequence variations might have a role in the development of AERD.
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Affiliation(s)
- Kenya Kohyama
- Gunma Institute for Allergy and Asthma, Gunma Hospital for Allergic and Respiratory Diseases, Ohra-machi, Gunma, Japan
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Association of single nucleotide polymorphism of IL-17 gene promoter with childhood asthma. ACTA ACUST UNITED AC 2011. [DOI: 10.3724/sp.j.1008.2011.00481] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Cytokine expression in cord blood cells of children of healthy and allergic mothers. Folia Microbiol (Praha) 2010; 55:515-9. [PMID: 20941589 DOI: 10.1007/s12223-010-0085-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2009] [Indexed: 10/19/2022]
Abstract
To determine some early signs connected with the increased risk of future allergy development, gene expression and production of selected cytokines were tested in children of allergic mothers and compared with newborns of healthy mothers. Expression of IL-1β, IL-2, IL-4, IL-8, IL-10, IL-13, IFN-γ, TNF-α, TGF-β and EGF was tested in cord blood cells using real-time PCR and production of these cytokines was evaluated in cord sera by ELISA. Gene expression of IL-2, IL-4, IL-8, IFN-γ, IL-1β, TNF-α and TGF-β was decreased and that of IL-10, IL-13 and EGF increased in children of allergic mothers in comparison with those of healthy mothers. Significant differences in sera of healthy and allergic groups were only in IL-10 and EGF. Different relationship among serum cytokine levels reflects the fact that the cytokines are not produced only by blood cells. Significantly decreased production of EGF in newborns of allergic mothers could negatively influence maturation of mucosal membranes of these children and support thus their easier allergization. Allergic phenotype pointing to the bias to T(H)2 response and to possibly impaired intestine maturation was apparent already on the level of cord blood and could serve as a predictive sign of increased allergy risk.
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Chen RF, Huang HC, Ou CY, Hsu TY, Chuang H, Chang JC, Wang L, Kuo HC, Yang KD. MicroRNA-21 expression in neonatal blood associated with antenatal immunoglobulin E production and development of allergic rhinitis. Clin Exp Allergy 2010; 40:1482-90. [PMID: 20701609 DOI: 10.1111/j.1365-2222.2010.03592.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND The prevalence of allergic diseases has increased in the past decades. It is unknown whether expression of certain microRNAs (miRNAs) in neonatal leucocytes is correlated to IgE production and/or allergic diseases. OBJECTIVE This study investigated the association of miRNA expression in neonatal leucocytes with cord blood IgE (CBIgE) elevation and development of allergic disease. METHODS We screened for the expression of a panel of 157 miRNAs in mononuclear leucocytes from human umbilical cord blood (CB) samples with elevated CBIgE and tracked the association of down-regulated miRNA expression to the miRNA-targeted gene expression and to children with allergic rhinitis (AR). RESULTS Among the initial screen of 10 CB samples with elevated CBIgE, expression of eight of the 157 miRNAs was low. Of these eight down-expressed miRNAs, three remained down-regulation in a validation with other 20 CB samples, and two of the three miRNAs, miR-21 and miR-126, were significantly lower in monocytes from AR children. Further analysis of mRNA expression of the miR-21-targeted genes identified that TGFBR2 expression on monocytes was significantly up-regulated in CB with elevated CBIgE, and in AR patients. Transfection of miR-21 precursor into monocytes from patients with AR increased miR-21 expression and decreased TGFBR2 expression. CONCLUSION This study demonstrated the first in the literature that lower miR-21 expression in CB and increased TGFBR2 expression is associated with antenatal IgE production and development of AR.
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Affiliation(s)
- R-F Chen
- Department of Pediatrics, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Kaohsiung, Taiwan
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Pei D, Huang YJ, Hsieh CH, Kuo SW, Liou YH, Wu LSH. The Genetic Background Difference Between Diabetic Patients with and without Nephropathy in a Taiwanese Population by Linkage Disequilibrium Mapping Using 382 Autosomal STR Markers. Genet Test Mol Biomarkers 2010; 14:433-8. [DOI: 10.1089/gtmb.2009.0179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Dee Pei
- Division of Endocrinology and Metabolism, Cardinal Tien Hospital, Taipei, Taiwan
| | - Yi-Jen Huang
- Division of Endocrinology and Metabolism, Tri-Service General Hospital, Taipei, Taiwan
| | - Chang-Hsun Hsieh
- Division of Endocrinology and Metabolism, Tri-Service General Hospital, Taipei, Taiwan
| | - Shi-Wen Kuo
- Division of Endocrinology, Buddhist Xindian Tzu Chi General Hospital, Taipei, Taiwan
| | - Ya-Huei Liou
- Research Development Division, Vita Genomics Inc., Taipei, Taiwan
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The polymorphism of IL-17 G-152A was associated with childhood asthma and bacterial colonization of the hypopharynx in bronchiolitis. J Clin Immunol 2010; 30:539-45. [PMID: 20437253 DOI: 10.1007/s10875-010-9391-8] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Accepted: 03/16/2010] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Interleukin (IL)-17 plays an important role in the pathogenesis of asthma. We investigated the association between single-nucleotide polymorphism (SNP) of IL-17 (rs2275913, IL-17 G-152A) and asthma-related traits. Its effect on IL-17 production was also attractive. METHODS One hundred and sixty eight childhood asthmatic patients, 144 bronchiolitis patients, and 205 healthy controls were recruited in this study. SNP rs2275913 was genotyped by polymerase chain reaction-restriction fragment length polymorphism. Peripheral blood mononuclear cells (PBMCs) from parts of healthy controls with different genotype were isolated and cultured with phytohaemagglutinin (PHA) for detection of IL-17 in the supernatants. RESULTS SNP rs2275913 was associated with asthma (P = 0.03) in genotype frequency test. Children with homozygous A were 2.29 times more likely to have asthma than others (95% confidence interval 1.39-3.78, P = 0.001). The strength of associations was moderately higher by allergy comorbidity. Furthermore, SNP rs2275913 A allele was associated with abnormal lung function and serum total IgE in asthmatics, although the production of IL-17 by PHA-induced PBMC seemed to be not different among individuals with different genotypes. The distribution of SNP rs2275913 in bronchiolitis was marginally statistically different with controls and demonstrated a tendency close to that in asthma. Higher Streptococcus pneumoniae and Moraxella catarrhalis detection rates were shown in bronchiolitis patients with homozygous A allele than those with other genotypes (20.8% vs. 3.7%, P < 0.01 and 20.8% vs. 6.2%, P = 0.03). CONCLUSION The preliminary results demonstrate that IL-17 SNP rs2275913 was associated with several asthma-related traits and confers genetic susceptibility to childhood asthma. It may be used to develop markers to assess the risk of asthma, especially in the bronchiolitis population. It may be a potential bridge to connect the bacterial colonization and the onset of asthma.
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Wang JY, Shyur SD, Wang WH, Liou YH, Lin CGJ, Wu YJ, Wu LSH. The polymorphisms of interleukin 17A (IL17A) gene and its association with pediatric asthma in Taiwanese population. Allergy 2009; 64:1056-60. [PMID: 19210369 DOI: 10.1111/j.1398-9995.2009.01950.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND The interleukin 17A (IL17A) gene, located on chromosome 6p and linked to asthma phenotype, is a highly potential candidate gene conferring asthma susceptibility. The purpose of this study was to investigate the genetic association between single nucleotide polymorphisms (SNPs) of IL17A and asthma in Taiwanese children. METHODS We selected and performed genotyping on nine SNPs that encompass the genomic region of IL17A in Taiwanese children with or without asthma. A total of 1939 subjects containing 1027 subjects in testing group and 931 subjects in validation group were recruited in this study. RESULTS After Bonferroni correction, SNP rs8193036 was found to have a weak association (P = 0.0074 x 9 = 0.066) in genotype frequency test. This association was confirmed by validation group. Logistic regression adjusted allergy comorbidity and gender showed a slightly weaker association. CONCLUSIONS The results indicated an independent role of IL17A promoter polymorphism rs8193036 in the association with pediatric asthma in Taiwanese population.
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Affiliation(s)
- J Y Wang
- Department of Pediatrics, College of Medicine, National Cheng-Kung University, Tainan
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The polymorphisms of protein-tyrosine phosphatase receptor-type delta gene and its association with pediatric asthma in the Taiwanese population. Eur J Hum Genet 2008; 16:1283-8. [PMID: 18414509 DOI: 10.1038/ejhg.2008.79] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
We previously reported an association between genetic differences of pediatric asthma subtypes and a short tandem repeat (STR) marker, D9S286. It has been known that the protein-tyrosine phosphatase receptor-type delta (PTPRD) gene is located downstream of D9S286 and that the physical distance between them is about 0.25 Mb. We selected and conducted genotyping on 76 single-nucleotide polymorphisms (SNPs) that encircle the genomic region of PTPRD in Taiwanese children with or without asthma. A total of 996 subjects were divided into testing group (674 subjects) and validation group (322 subjects). The results were further validated with the third subject group (611 subjects) recruited from different geographical regions. After Bonferroni correction, 3 out of 80 SNPs were found to be strongly significant (P < 0.05/76 = 0.000658) in the allele frequency test. This association was confirmed by validation groups. The results indicate that polymorphisms of PTPRD are strongly associated with pediatric bronchial asthma in the Taiwanese population.
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Abstract
In asthma, as in many other common multifactorial diseases, the identification of the susceptibility genes has been challenging because consistent results at the genome-wide significance level have been scarce. So far, genome-wide scans have been reported in 17 study populations. By means of genome-wide linkage and hierarchical association analysis, six positional candidate genes (ADAM33, PHF11, DPP10, GPR154, HLA-G, and CYFIP2) for asthma-related traits have been cloned. The interactions of the proteins encoded by these genes and the biological relevance of these signaling pathways in the development of asthma are still poorly understood. Also, the disease mechanisms resulting from the genetic variance in the genes identified remain largely unknown. Although this information is gradually accumulating, we can examine the statistical robustness of each genetic finding in combination with the limited data available on the functional properties of the corresponding proteins to estimate the strengths and weaknesses in the chains of evidence.
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Wang JY, Lin CGJ, Hsiao YH, Liou YH, Wu LSH. Single nucleotide polymorphisms and haplotype of MD-1 gene associated with high serum IgE phenotype with mite-sensitive allergy in Taiwanese children. Int J Immunogenet 2007; 34:407-12. [DOI: 10.1111/j.1744-313x.2007.00711.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Asthma is a chronic inflammatory airways disease, with a rising prevalence, particularly in childhood, and is considered an important public health problem. Its familial transmission is recognised, while the description and identification of the genes implicated in this disease are a challenge. In this revision paper the authors give a comprehensive explanation of the associated genes as well as the laboratorial methods that allow their identification.
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Affiliation(s)
- Paula Alexandra Videira
- Faculty of Medical Sciences, Department of Immunology, Universidade Nova de Lisboa, Campo dos Mártires da Pátria no. 130, 1169-056 Lisbon
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Wu LSH, Tan CY, Wang LM, Lin CGJ, Wang JY. Variant in promoter region of platelet-derived growth factor receptor-alpha (PDGFRalpha) gene is associated with the severity and allergic status of childhood asthma. Int Arch Allergy Immunol 2006; 141:37-46. [PMID: 16804324 DOI: 10.1159/000094180] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2005] [Accepted: 03/23/2006] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Upregulation of the platelet-derived growth factor receptor-alpha (PDGFRalpha) in airway myofibroblast cells is one of the mechanisms of airway remodeling. The genetic association between PDGFRalpha promoter polymorphism and severity of childhood asthma was examined. METHODS Five single nucleotide polymorphisms (SNPs) at the promoter regions of the PDGFRalpha gene were genotyped in 277 unrelated allergic and nonallergic asthmatic children and 93 age-matched controls. Promoter haplotypes were constructed using SNP genotyping data. The serum level of PDGF-AA, the ligand for PDGFRalpha, was assayed by ELISA kits. RESULTS The genotype distribution of SNP rs1800810 (-1171G/C) in nonallergic asthma was significantly different from controls (p=0.038), as well as its allele distribution (p=0.028). Using haplotype analysis, the combination frequency of the low expression of H1 homozygous and heterozygous genotype (H1/H1+H1/H2) was significantly higher in nonallergic asthma as compared to controls (OR=1.94, CI=1.11-3.39, p<0.02). The frequency of H2/H2 homozygous was higher in persistent asthma than in intermittent asthma (p=0.008, OR=2.625). In addition, the PDGF-AA serum level in H2/H2 homozygous haplotype was significantly lower as compared to non-H2/H2 homozygous haplotype both in asthmatic (138.1+/-62.9 vs. 249.7+/-97.1 ng/ml, p<0.05) and nonallergic asthmatic children (113.8+/-38.0 vs. 256.6+/-58.3 ng/ml, p<0.05). CONCLUSIONS The developmental deficiency due to the low expression of PDGFRalpha may be one of the susceptible factors for nonallergic asthmatic children. There was also an autocrine effect of lower PDGF-AA and higher PDGFRalpha expression that might lead to airway remodeling causing the severity of asthma.
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Prokesová L, Lodinová-Zádníková R, Zizka J, Kocourková I, Novotná O, Petrásková P, Sterzl I. Cytokine levels in healthy and allergic mothers and their children during the first year of life. Pediatr Allergy Immunol 2006; 17:175-83. [PMID: 16672003 DOI: 10.1111/j.1399-3038.2006.00395.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To assess the regulatory changes of immune system in children genetically pre-disposed to allergic diseases and in their mothers, we tested cytokines IL-4, IL-5, IL-6, IL-10, IL-13, IFN-gamma and TGF-beta in 21 healthy and 21 allergic mothers (serum at the time of delivery, colostrum and milk throughout the suckling period) and their children (cord blood, venous blood and stool filtrates) up to 1 yr of age. Samples were taken at the time of delivery, 4 days post-partum and then after 3, 6 and 12 months. Significant differences between the healthy and the allergic group were found in the levels of IL-4, IL-10, IL-13 and IFN-gamma. The levels of IL-4 in the allergic group were generally higher; the levels in the sera of children of allergic mothers during the post-natal life decreased, reaching levels typical for the healthy group at 1 yr of age. Allergic mothers exhibited markedly higher IL-10 levels in the serum at the time of delivery and in milk 3 months after delivery than healthy mothers while after 6 months the IL-10 levels in all samples from the allergic group were very low. Children from allergic group had lower intestinal content of IL-13 in comparison with the healthy counterparts. At 1 yr of age, the levels of IFN-gamma in sera and stool of children from the allergic group sharply increased. TGF-beta levels in the sera of both groups were high, while in the milk they were relatively low and substantially lower that in the children's stool. TGF-beta of mammary secretions is therefore unlikely to exert a decisive regulatory influence on the children's immunity. Long-term clinical monitoring of the children will be performed to evaluate the potential prognostic significance of these changes for the future development of allergies.
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Affiliation(s)
- Ludmila Prokesová
- Charles University, 1st Faculty of Medicine, Institute of Immunology and Microbiology, Prague, Czech Republic.
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Tan CY, Chen YL, Wu LSH, Liu CF, Chang WT, Wang JY. Association of CD14 promoter polymorphisms and soluble CD14 levels in mite allergen sensitization of children in Taiwan. J Hum Genet 2005; 51:59-67. [PMID: 16292464 DOI: 10.1007/s10038-005-0323-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2005] [Accepted: 09/28/2005] [Indexed: 12/20/2022]
Abstract
CD14 is responsible for environmental lipopolysaccharide recognition and is a positional candidate gene for allergy. We hypothesized that genetic polymorphisms in the promoter region of the CD14 gene may be associated with Dermatophagoides pteronysinnus (Der p) allergen sensitization in children. Three single nucleotide polymorphisms (SNPs) of the CD14 promoter region, C(-159)T, A(-1,145)G, and G(-1,359)T were genotyped, and analyzed in 240 randomized case-control school-age children in Taiwan. Serum concentrations of IgE and soluble CD14 (sCD14) were also assayed. We found a significant inverse correlation of sCD14 and total serum IgE levels in our study population. Moreover, sCD14 binds Der p allergen in vitro in a dose-dependent manner. The distribution of three SNPs genotypes was similar in asthmatic children and the control group. However, there was a significant difference in the distribution of genotype CD14 G(-1,359)T, but not C(-159)T, between mite-sensitive and non-sensitive children. Haplotype analysis showed strong linkage disequilibrium among these three SNPs in the CD14 promoter region. Carriers of the CD14-159C/-1,145A/-1,359T haplotype had the highest IgE and lowest sCD14 levels as compared to other haplotypes. Our results support the hypothesis that CD14 gene variants may play an important role in influencing allergen sensitization of children in Taiwan.
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Affiliation(s)
- Choon-Yee Tan
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Basic Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Lin Chen
- Department of Pathology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | | | - Chai-Fan Liu
- Institute of Basic Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Tsan Chang
- Institute of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Jiu-Yao Wang
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
- Institute of Basic Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
- Division of Allergy and Clinical Immunology, Department of Pediatrics, College of Medicine, National Cheng Kung University, 138 Sheng-Li road, Tainan, 70428, Taiwan.
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