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Aarafi H, Yadegari A, Dastgheib SA, Bahrami R, Shajari A, Nafei Z, Moghimi M, Mirjalili SR, Neamatzadeh H. Association of +1923C > T, -1112C > T and +2044A > G Polymorphisms in IL-13 Gene with Susceptibility to Pediatric Asthma: A Systematic Review and Meta-Analysis. Fetal Pediatr Pathol 2022; 41:259-277. [PMID: 32643534 DOI: 10.1080/15513815.2020.1783406] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BackgroundPrevious studies have provided conflicting evidence implicating the IL-13 polymorphism and pediatric asthma. Thus, we performed a meta-analysis to combine and analyze the available studies to provide more accurate conclusions. Methods: A comprehensive retrieval in PubMed, EMBASE, Web of Science, and CNKI was performed up to February 05, 2020. Results: A total of 39 case-control studies including 15 studies with 4,968 cases and 7,091 controls were on +1923 C > T, ten studies with 3,175 cases and 2,983 controls on -1112 C > T, and 14 studies with 4,476 cases and 5,121 controls on +2044 A > G were selected. Pooled data showed that the IL-13 + 1923 C > T, -1112 C > T and +2044 A > G polymorphisms were significantly associated with risk of pediatric asthma. The IL-13 + 1923 C > T (Asians and Africans), -1112 C > T (Caucasians) and +2044 A > G (Asians) polymorphisms were more frequently associated in these ethnic groups. Conclusions: Our pooled data indicated that IL-13 + 1923 C > T, -1112 C > T and +2044 A > G polymorphisms were correlated with risk of pediatric asthma.
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Affiliation(s)
- Hossein Aarafi
- Department of Pediatrics, Yazd Branch, Islamic Azad University, Yazd, Iran
| | - Amirhossein Yadegari
- Medical Student, Shahid Sadoughi Hospital, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Seyed Alireza Dastgheib
- Department of Medical Genetics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Bahrami
- Neonatal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmad Shajari
- Neonatal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Nafei
- Department of Pediatrics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Children Growth Disorder Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mansour Moghimi
- Department of Pathology, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Seyed Reza Mirjalili
- Department of Pediatrics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Mother and Newborn Health Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hossein Neamatzadeh
- Mother and Newborn Health Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.,Department of Medical Genetics, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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2
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Kazemi S, Vaisi-Raygani A, Keramat F, Saidijam M, Soltanian AR, Alahgholi-Hajibehzad M, Hashemi SH, Alikhani MY. Evaluation of the relationship between IL-12, IL-13 and TNF-α gene polymorphisms with the susceptibility to brucellosis: a case control study. BMC Infect Dis 2019; 19:1036. [PMID: 31818255 PMCID: PMC6902342 DOI: 10.1186/s12879-019-4678-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 11/29/2019] [Indexed: 12/18/2022] Open
Abstract
Background The cytokine gene polymorphism is important for the genetic susceptibility of infectious diseases. The aim of the present study was to investigate the relationship between TNF-α, IL-12, and IL-13 gene polymorphisms and predisposition to brucellosis. Methods In this study, 107 patients with brucellosis and 107 healthy individuals were evaluated. The SNPs of TNF-α)- 238 G/A) and IL-12 (+ 1188 A/C) were done by amplification refractory mutation system-polymerase chain reaction (ARMS-PCR) and IL-13 genotyping at positions − 1512 (A/C) and − 1112 (C/T) were analysis by restriction fragment length polymorphism-polymerase chain reaction (RFLP-PCR) methods. IL-12, IL-13 and TNF-α serum levels were measured by a sandwich enzyme-linked immunosorbent assay (ELISA). Results IL-13 (−1512A/C) was associated with Brucellosis risk in dominant model (OR (95% CI) = 2.17 (1.02–4.62)), P-value = 0.041. However, there was no difference in allele and genotype frequencies of TNF-α)- 238 G/A), IL-12 (+ 1188 A/C) and IL-13 [− 1512 (A/C) and − 1112 (C/T)] between patients and controls. Serum levels of IL-12 and TNF-α were significantly more frequent in the patients than in the control groups. Conclusions The IL-13 gene polymorphism can be used as a biomarker for detecting susceptibility to Brucella disease.
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Affiliation(s)
- Sima Kazemi
- Department of Microbiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Asad Vaisi-Raygani
- Department of Clinical Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Fariba Keramat
- Brucellosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Massoud Saidijam
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ali Reza Soltanian
- Department of Biostatistics and Epidemiology, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
| | | | - Seyed Hamid Hashemi
- Brucellosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Yousef Alikhani
- Department of Microbiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran. .,Brucellosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
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3
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Kang SW, Kim SK, Han YR, Hong D, Chon J, Chung JH, Hong SJ, Park MS, Ban JY. Promoter Polymorphism (-308G/A) of Tumor Necrosis Factor-Alpha ( TNF-α) Gene and Asthma Risk: An Updated Meta-Analysis. Genet Test Mol Biomarkers 2019; 23:363-372. [PMID: 31161819 DOI: 10.1089/gtmb.2018.0238] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background and Aims: The relationship between the promoter polymorphism (-308G/A) of the tumor necrosis factor-alpha (TNF-α) gene and the susceptibility to asthma has been tested in several studies. However, the results have been inconsistent. Therefore, we performed an updated meta-analysis to evaluate the relationship between this promoter polymorphism of the TNF-α gene and the risk of asthma. Methods: Fifty case-control studies were included in this meta-analysis which provided 17,937 controls and 9961 asthma patients. The pooled p-value, odds ratio (OR), and 95% confidence interval (95% CI) were used to investigate the strength of the association of this polymorphism of the TNF-α gene with the risk of asthma. The meta-analysis was carried out by Comprehensive Meta-Analysis software. Results: The results of our meta-analysis revealed that the TNF-α polymorphism (-308, G/A) was strongly associated with the risk of asthma (p < 0.05 in the allelic, dominant, and recessive models, respectively). In further analyses, based on age group and ethnicity, we observed this association for all subpopulations examined (p < 0.05 in allelic, dominant, and recessive models, respectively). Conclusion: This large-scale meta-analysis supports a strong association between the TNF-α gene promoter polymorphism (-308G/A) and the development to asthma in both children and adults.
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Affiliation(s)
- Sang Wook Kang
- 1 Department of Dental Pharmacology, School of Dentistry, Dankook University, Cheonan, Republic of Korea
| | - Su Kang Kim
- 2 Department of Biomedical Laboratory Science, Catholic Kwandong University, Gangneung, Republic of Korea
| | - Young Rok Han
- 3 Department of Physical Medicine and Rehabilitation, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - DongWhan Hong
- 3 Department of Physical Medicine and Rehabilitation, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Jinmann Chon
- 3 Department of Physical Medicine and Rehabilitation, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Joo-Ho Chung
- 4 Kohwang Medical Research Institute, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Seoung-Jin Hong
- 5 Department of Prosthodontics, Kyung Hee University Dental Hospital, Seoul, Republic of Korea
| | - Min-Su Park
- 6 Department of Surgery, School of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Ju Yeon Ban
- 1 Department of Dental Pharmacology, School of Dentistry, Dankook University, Cheonan, Republic of Korea
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Mei Q, Qu J. Interleukin-13 +2044 G/A and +1923C/T polymorphisms are associated with asthma susceptibility in Asians: A meta-analysis. Medicine (Baltimore) 2017; 96:e9203. [PMID: 29390465 PMCID: PMC5758167 DOI: 10.1097/md.0000000000009203] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
A number of studies have reported that the interleukin 13 (IL-13) gene is associated with asthma susceptibility. However, the reported relationships between the +2044G/A and +1923C/T polymorphisms and asthma susceptibility are inconsistent, especially in Asian adults and children with atopic status. Meta-analysis was used to analyze combined data.The +2044G/A and +1923C/T polymorphisms were investigated using data from 18 and 11 studies, respectively. The results suggested that there was an association between asthma and the IL-13 +2044G/A polymorphisms: odds ratio (OR) 1.34, 95% confidence interval (CI) 1.03-1.75 for AA versus GG + GA and +1923C/T; OR 1.50, 95% CI 1.26-1.78 for TT versus CC; and OR 1.15, 95% CI 1.10-1.21 for TC versus CC. The subgroup meta-analysis demonstrated that IL-13 +2044G/A polymorphisms are associated with asthma: OR 1.47, 95% CI 1.06-2.04 for AA versus GG + GA and +1923C/T; OR 1.70, 95% CI 1.26-2.30 for TT versus CC; and OR 1.27, 95% CI 1.03-1.56 for TC versus CC. In particular, IL-13 +2044G/A polymorphisms are specifically associated with Asian ethnicity in both adults and children with atopic status. However, the 1923C/T polymorphisms were not significantly associated with age group or atopic status within the Asian subgroups. Further investigation using larger samples and meta-analysis is required. No publication bias was detected.This meta-analysis indicates that the IL13 +2044G/A and +1923C/T polymorphisms are risk factors for asthma, especially among Asians.
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Affiliation(s)
- Quanhui Mei
- Department of Intensive Care Unit, The First People's Hospital of Changde City, Changde, Hunan
| | - Jingjing Qu
- Department of Medical Oncology, Lung Cancer and Gastrointestinal Unit, Hunan Cancer Hospital, Affiliated Cancer Hospital of Xiangya School of Medicine, Changsha, China
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5
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Jiang XG, Yang XD, Lv Z, Zhuang PH. Elevated serum levels of TNF-α, IL-8, and ECP can be involved in the development and progression of bronchial asthma. J Asthma 2017; 55:111-118. [PMID: 28399677 DOI: 10.1080/02770903.2017.1318141] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE This study aimed to explore the value of elevated serum levels of tumor necrosis factor-α (TNF-α), interleukin-8 (IL-8), and eosinophil cationic protein (ECP) in the diagnosis of bronchial asthma (BA). METHODS A total of 170 patients with BA (case group, 85 patients in acute attack and 85 patients in clinical remission) and 150 healthy individuals (control group) were enrolled in this study. Enzyme-linked immunosorbent assay and receiver operating characteristic (ROC) curves were calculated for the contents and diagnostic values of serum TNF-α, IL-8, and ECP in BA. RESULTS Compared with the control group, patients in acute attack and clinical remission had higher TNF-α, IL-8, and ECP levels (p < 0.05). The serum level of TNF-α was positively correlated with IL-8 and ECP (p < 0.05). ROC curves showed that the diagnostic threshold value of IL-8 was 13.53 ng/ml, its area under the curve (AUC) was 0.87, its specificity was 99.3%, and its sensitivity was 57.6%. The diagnostic threshold value of TNF-α was 1.29 ng/ml with AUC being 0.94, specificity was 89.3%, and sensitivity was 83.5%. ECP showed 7.22 ng/ml diagnostic threshold value (AUC = 0.88, specificity = 74.0%, sensitivity = 86.5%). The FEV1/pre(%) and FEV1/FVC were negatively correlated and the Z5/pre(%) and resonance frequency (Fres) were positively correlated with the serum levels of TNF-α, IL-8, and ECP in patients in acute attack and in clinical remission (all p < 0.05). CONCLUSION Our findings reveal that elevated serum levels of TNF-α, IL-8, and ECP can be involved in the development and progression of BA.
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Affiliation(s)
- Xiao-Gang Jiang
- a Department of Biochemistry and Molecular Biology , Xi'an Jiaotong University College of Medicine , Xi'an , P. R. China
| | - Xu-Dong Yang
- a Department of Biochemistry and Molecular Biology , Xi'an Jiaotong University College of Medicine , Xi'an , P. R. China
| | - Zhe Lv
- b Xi'an Public Health Bureau , Xi'an , P. R. China
| | - Peng-Hui Zhuang
- c Department of Surgery , The First Affiliated Hospital of Xi'an Jiaotong University , Xi'an , P. R. China
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6
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Jung YH, Seo JH, Kim HY, Kwon JW, Kim BJ, Kim HB, Lee SY, Jang GC, Song DJ, Kim WK, Shim JY, Hong SJ. The relationship between asthma and bronchiolitis is modified by TLR4, CD14, and IL-13 polymorphisms. Pediatr Pulmonol 2015; 50:8-16. [PMID: 24376096 DOI: 10.1002/ppul.22978] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 11/05/2013] [Indexed: 01/17/2023]
Abstract
BACKGROUND Asthma is a complex genetic disorder that is associated with both genetic and environmental factors. The aim of study was to investigate the combined effect of toll-like receptor 4 (TLR4), cluster of differentiation 14 (CD14), and interleukin-13 (IL-13) polymorphisms and bronchiolitis in the development of childhood asthma. METHODS A modified International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire was used to survey 1,341 elementary school children and 919 nursery children in Seoul, Korea. TLR4 (rs1927911), CD14 (rs2569190), and IL-13 (rs20541) polymorphisms were genotyped by the TaqMan assay. RESULTS In elementary school and nursery children, parental history of asthma (adjusted odds ratio [aOR] 2.56 [95% CI 1.16-5.63], aOR 3.60 [95% CI 1.66-7.76], respectively), and past history of bronchiolitis (aOR 3.11 [95% CI 1.84-5.24], aOR 3.94 [95% CI 2.27-6.84], respectively) were independent risk factors for asthma diagnosis. When compared to children with each CC of TLR4 polymorphism or TT of CD14 polymorphism or GG of IL13 polymorphism and no past history of bronchiolitis, children with CT or TT of TLR4 polymorphism and past history of bronchiolitis had 4.23 and 5.34 times higher risk to develop asthma, respectively; children with TT of CD14 polymorphism and past history of bronchiolitis had 3.57 and 7.22 times higher risk for asthma, respectively; children with GA or AA of IL-13 polymorphism and past history of bronchiolitis had 3.21 and 4.13 times higher risk for asthma, respectively. CONCLUSIONS Family history of asthma or allergic rhinitis and past history of bronchiolitis could be independent risk factors for the development of childhood asthma. The relationship between asthma and bronchiolitis is modified by the TLR4, CD14, and IL-13 polymorphisms in Korean children.
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Affiliation(s)
- Young-Ho Jung
- Department of Pediatrics, CHA University School of Medicine, Seongnam, Korea; Research Center for Standardization of Allergic Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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7
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Liu Z, Li P, Wang J, Fan Q, Yan P, Zhang X, Han B. A meta-analysis of IL-13 polymorphisms and pediatric asthma risk. Med Sci Monit 2014; 20:2617-23. [PMID: 25502839 PMCID: PMC4271802 DOI: 10.12659/msm.891017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Background IL13–1112C/T and +2044A/G polymorphisms have been reported to be correlated with pediatric asthma susceptibility, but study results were still debatable. Thus, a meta-analysis was conducted. Material/Methods PubMed and EMBASE databases were searched. Odds ratios (ORs) with 95% confidence intervals (CIs) were used to calculate the strength of association in the random-effects model or fixed-effects model. Results Fourteen case-control studies with 4710 asthma cases and 6086 controls were included in this meta-analysis. IL13–1112C/T and +2044A/G polymorphisms were significantly associated with an increased risk of pediatric asthma (OR=1.14, 95% CI 1.01–1.28, P=0.04, I2=0%; OR=1.20, 95% CI 1.09–1.32, P<0.01, I2=0%), respectively. In the subgroup analysis by ethnicity, IL13–1112C/T polymorphism was significantly associated with pediatric asthma risk in whites (OR=1.29, 95% CI 1.02–1.63, P=0.03, I2=16%). IL13 +2044A/G polymorphism was significantly associated with pediatric asthma risk in Asians (OR=1.21, 95% CI 1.10–1.34, P<0.01, I2=24%). Conclusions The results of this meta-analysis suggest that IL13–1112C/T and +2044A/G polymorphisms contribute to the development of pediatric asthma.
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Affiliation(s)
- Zhigang Liu
- Department of Pediatrics, Jinan Maternal and Child Health Hospital, Shandong University, Jinan, Shandong, China (mainland)
| | - Peijie Li
- Department of Pediatrics, Jinan Maternal and Child Health Hospital, Shandong University, Jinan, Shandong, China (mainland)
| | - Jinrong Wang
- Department of Pediatrics, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China (mainland)
| | - Qing Fan
- Department of Pediatrics, Jinan Maternal and Child Health Hospital, Shandong University, Jinan, Shandong, China (mainland)
| | - Ping Yan
- Department of Pediatrics, Jinan Maternal and Child Health Hospital, Shandong University, Jinan, Shandong, China (mainland)
| | - Xiaojing Zhang
- Department of Pediatrics, Jinan Maternal and Child Health Hospital, Shandong University, Jinan, Shandong, China (mainland)
| | - Bo Han
- Department of Pediatrics, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China (mainland)
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8
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Yang G, Chen J, Xu F, Bao Z, Yao Y, Zhou J. Association between tumor necrosis factor-α rs1800629 polymorphism and risk of asthma: a meta-analysis. PLoS One 2014; 9:e99962. [PMID: 24936650 PMCID: PMC4061054 DOI: 10.1371/journal.pone.0099962] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 05/20/2014] [Indexed: 01/08/2023] Open
Abstract
Objective The purpose of this study was to explore the association between the TNF-α rs1800629 (also refers as -308G/A) polymorphism and asthma susceptibility. Methods We searched the Pubmed, Embase, Cochrane Central Register of Controlled Trials (CENTRAL) and Wanfang databases. Odds ratios (ORs) with 95% confidence intervals (CIs) were used to calculate the strength of association. Results A total of 34 studies involving 5477 asthma patients and 5962 controls were included in present study. The results indicated that TNF-α rs1800629 polymorphism was significantly associated with asthma risk in a recessive genetic model (OR = 1.46, 95% CI 1.21–1.76, P<0.0001). Subgroup analyses found that the TNF-α rs1800629 polymorphism was significantly associated with asthma risk in West Asians and South Asians (OR = 2.47, 95% CI = 1.48–4.12, P = 0.0005; OR = 1.83, 95% CI = 1.42–2.36, P<0.00001), but not East Asians and Caucasians. Furthermore, significant association also was observed in allergic asthma (OR = 1.51, 95% CI = 1.24–1.83, P<0.0001), adults and children (OR = 1.43, 95 CI% = 1.07–1.91, P = 0.02; OR = 1.57, 95% CI = 1.19–2.06, P = 0.001). Conclusions This meta-analysis suggested that the rs1800629 polymorphism in TNF-α was a risk factor for asthma.
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Affiliation(s)
- Guangdie Yang
- Department of Respiratory Diseases, The First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China
| | - Junjun Chen
- Department of Respiratory Diseases, The First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China
| | - Fei Xu
- Department of Respiratory Diseases, The First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China
| | - Zhang Bao
- Department of Respiratory Diseases, The First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China
| | - Yake Yao
- Department of Respiratory Diseases, The First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China
| | - Jianying Zhou
- Department of Respiratory Diseases, The First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China
- * E-mail:
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Lee SY, Yu J, Ahn KM, Kim KW, Shin YH, Lee KS, Hong SA, Jung YH, Lee E, Yang SI, Seo JH, Kwon JW, Kim BJ, Kim HB, Kim WK, Song DJ, Jang GC, Shim JY, Lee SY, Kwon JY, Choi SJ, Lee KJ, Park HJ, Won HS, Yoo HS, Kang MJ, Kim HY, Hong SJ. Additive effect between IL-13 polymorphism and cesarean section delivery/prenatal antibiotics use on atopic dermatitis: a birth cohort study (COCOA). PLoS One 2014; 9:e96603. [PMID: 24848505 PMCID: PMC4029558 DOI: 10.1371/journal.pone.0096603] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 04/10/2014] [Indexed: 01/09/2023] Open
Abstract
Background Although cesarean delivery and prenatal exposure to antibiotics are likely to affect the gut microbiome in infancy, their effect on the development of atopic dermatitis (AD) in infancy is unclear. The influence of individual genotypes on these relationships is also unclear. To evaluate with a prospective birth cohort study whether cesarean section, prenatal exposure to antibiotics, and susceptible genotypes act additively to promote the development of AD in infancy. Methods The Cohort for Childhood of Asthma and Allergic Diseases (COCOA) was selected from the general Korean population. A pediatric allergist assessed 412 infants for the presence of AD at 1 year of age. Their cord blood DNA was subjected to interleukin (IL)-13 (rs20541) and cluster-of-differentiation (CD)14 (rs2569190) genotype analysis. Results The combination of cesarean delivery and prenatal exposure to antibiotics associated significantly and positively with AD (adjusted odds ratio, 5.70; 95% CI, 1.19–27.3). The association between cesarean delivery and AD was significantly modified by parental history of allergic diseases or risk-associated IL-13 (rs20541) and CD14 (rs2569190) genotypes. There was a trend of interaction between IL-13 (rs20541) and delivery mode with respect to the subsequent risk of AD. (P for interaction = 0.039) Infants who were exposed prenatally to antibiotics and were born by cesarean delivery had a lower total microbiota diversity in stool samples at 6 months of age than the control group. As the number of these risk factors increased, the AD risk rose (trend p<0.05). Conclusion Cesarean delivery and prenatal antibiotic exposure may affect the gut microbiota, which may in turn influence the risk of AD in infants. These relationships may be shaped by the genetic predisposition.
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Affiliation(s)
- So-Yeon Lee
- Department of Pediatrics, Hallym University College of Medicine, Anyang, Korea
| | - Jinho Yu
- Childhood Asthma Atopy Center, Asan Medical Center, Seoul, Korea
| | - Kang-Mo Ahn
- Department of Pediatrics, Sungkyunkwan University of School of Medicine, Seoul, Korea
| | - Kyung Won Kim
- Department of Pediatrics, College of Medicine, Yonsei University, Seoul, Korea
| | - Youn Ho Shin
- Department of Pediatrics, CHA University of School of Medicine, Seoul, Korea
| | | | - Seo Ah Hong
- Childhood Asthma Atopy Center, Asan Medical Center, Seoul, Korea
| | - Young-ho Jung
- Childhood Asthma Atopy Center, Asan Medical Center, Seoul, Korea
| | - Eun Lee
- Childhood Asthma Atopy Center, Asan Medical Center, Seoul, Korea
| | - Song-I Yang
- Childhood Asthma Atopy Center, Asan Medical Center, Seoul, Korea
| | - Ju-hee Seo
- Department of Pediatrics, Korea Cancer Center Hospital, Seoul, Korea
| | - Ji-Won Kwon
- Department of Pediatrics, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Byoung-Ju Kim
- Department of Pediatrics, Inje University College of Medicine, Seoul, Korea
| | - Hyo-Bin Kim
- Department of Pediatrics, Inje University College of Medicine, Seoul, Korea
| | - Woo-Kyung Kim
- Department of Pediatrics, Inje University College of Medicine, Seoul, Korea
| | - Dae Jin Song
- Department of Pediatrics, Korea University Guro Hospital, Seoul, Korea
| | - Gwang Cheon Jang
- Department of Pediatrics, National Health Insurance Corporation Ilsan Hospital, Goyang, Korea
| | - Jung Yeon Shim
- Department of Pediatrics, Sungkyunkwan University of School of Medicine, Seoul, Korea
| | - Soo-Young Lee
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Korea
| | - Ja-Young Kwon
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Korea
| | - Suk-Joo Choi
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyung-Ju Lee
- Department of Obstetrics and Gynecology, Pochon CHA University College of Medicine, Seoul, Korea
| | - Hee Jin Park
- Department of Obstetrics and Gynecology, Pochon CHA University College of Medicine, Seoul, Korea
| | - Hye-Sung Won
- Department of Obstetrics and Gynecology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ho-Sung Yoo
- The Asan Institute for Life Science, Seoul, Korea
| | - Mi-Jin Kang
- The Asan Institute for Life Science, Seoul, Korea
| | - Hyung-Young Kim
- Department of Pediatrics, Kosin University College of Medicine, Busan, Korea
| | - Soo-Jong Hong
- Childhood Asthma Atopy Center, Asan Medical Center, Seoul, Korea
- * E-mail:
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10
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Sayers BC, Taylor AJ, Glista-Baker EE, Shipley-Phillips JK, Dackor RT, Edin ML, Lih FB, Tomer KB, Zeldin DC, Langenbach R, Bonner JC. Role of cyclooxygenase-2 in exacerbation of allergen-induced airway remodeling by multiwalled carbon nanotubes. Am J Respir Cell Mol Biol 2014; 49:525-35. [PMID: 23642096 DOI: 10.1165/rcmb.2013-0019oc] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The emergence of nanotechnology has produced a multitude of engineered nanomaterials such as carbon nanotubes (CNTs), and concerns have been raised about their effects on human health, especially for susceptible populations such as individuals with asthma. Multiwalled CNTs (MWCNTs) have been shown to exacerbate ovalbumin (OVA)-induced airway remodeling in mice. Moreover, cyclooxygenase-2 (COX-2) has been described as a protective factor in asthma. We postulated that COX-2-deficient (COX-2(-/-)) mice would be susceptible to MWCNT-induced exacerbations of allergen-induced airway remodeling, including airway inflammation, fibrosis, and mucus-cell metaplasia (i.e., the formation of goblet cells). Wild-type (WT) or COX-2(-/-) mice were sensitized to OVA to induce allergic airway inflammation before a single dose of MWCNTs (4 mg/kg) delivered to the lungs by oropharyngeal aspiration. MWCNTs significantly increased OVA-induced lung inflammation and mucus-cell metaplasia in COX-2(-/-) mice compared with WT mice. However, airway fibrosis after exposure to allergen and MWCNTs was no different between WT and COX-2(-/-) mice. Concentrations of certain prostanoids (prostaglandin D2 and thromboxane B2) were enhanced by OVA or MWCNTs in COX-2(-/-) mice. No differences in COX-1 mRNA concentrations were evident between WT and COX-2(-/-) mice treated with OVA and MWCNTs. Interestingly, MWCNTs significantly enhanced allergen-induced cytokines involved in Th2 (IL-13 and IL-5), Th1 (CXCL10), and Th17 (IL-17A) inflammatory responses in COX-2(-/-) mice, but not in WT mice. We conclude that exacerbations of allergen-induced airway inflammation and mucus-cell metaplasia by MWCNTs are enhanced by deficiencies in COX-2, and are associated with the activation of a mixed Th1/Th2/Th17 immune response.
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Affiliation(s)
- Brian C Sayers
- 1 Department of Environmental and Molecular Toxicology, North Carolina State University, Raleigh, North Carolina
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Chiang CH, Chuang CH, Liu SL. Transforming Growth Factor-β1 and Tumor Necrosis Factor-α are Associated with Clinical Severity and Airflow Limitation of COPD in an Additive Manner. Lung 2013; 192:95-102. [DOI: 10.1007/s00408-013-9520-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 10/02/2013] [Indexed: 11/29/2022]
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12
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Nie W, Liu Y, Bian J, Li B, Xiu Q. Effects of polymorphisms -1112C/T and +2044A/G in interleukin-13 gene on asthma risk: a meta-analysis. PLoS One 2013; 8:e56065. [PMID: 23437086 PMCID: PMC3577847 DOI: 10.1371/journal.pone.0056065] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Accepted: 01/04/2013] [Indexed: 01/13/2023] Open
Abstract
Background Associations between interleukin-13 (IL-13) polymorphisms and asthma risk remained controversial and ambiguous. Therefore, we performed a meta-analysis to assess the associations between IL-13 polymorphisms and asthma susceptibility. Methods Pubmed, EMBASE, Chinese National Knowledge Infrastructure (CNKI) and Wangfang databases were searched. Odds ratios (ORs) with 95% confidence intervals (CIs) were used to calculate the strength of association in the random-effects model. Results Thirty-four studies were included in this meta-analysis. The results indicated that IL13 -1112C/T polymorphism was significantly associated with asthma risk (OR = 1.20, 95% CI 1.08–1.34, P = 0.0009) in a dominant genetic model. When stratifying for race, IL13 -1112C/T polymorphism exhibited increased asthma risk in Caucasians (OR = 1.30, 95% CI 1.09–1.55, P = 0.003), while no significant association was found in Asians and African Americans. In the subgroup analysis based on atopic status, significant association was observed in atopic patients (OR = 1.25, 95% CI 1.07–1.45, P = 0.004) but not in the non-atopic patients. In addition, a significant association between IL13+2044A/G polymorphism and asthma risk was observed (OR = 1.18, 95% CI 1.08–1.28, P = 0.0002). In the subgroup analysis by ethnicity, there were significant associations between IL13+2044A/G polymorphism and asthma risk in Asians (OR = 1.19, 95% CI 1.04–1.36, P = 0.01) and Caucasians (OR = 1.22, 95% CI 1.06–1.40, P = 0.005) but not in African Americans. In the subgroup analysis stratified by atopic status, a marginal significant association was found in atopic patients (OR = 1.12, 95% CI 1.00–1.26, P = 0.05). Conclusions This meta-analysis suggested that the IL13 -1112C/T and +2044A/G polymorphisms were risk factors for asthma.
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Affiliation(s)
- Wei Nie
- Department of Respiratory Disease, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, People’s Republic of China
| | - Yongan Liu
- Department of Respiratory Disease, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, People’s Republic of China
- Department of Intensive Care Medicine, No. 411 Hospital of PLA, Shanghai, People’s Republic of China
| | - Jiarong Bian
- Department of Respiratory Disease, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, People’s Republic of China
| | - Bin Li
- Department of Radiology, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, People’s Republic of China
| | - Qingyu Xiu
- Department of Respiratory Disease, Shanghai Changzheng Hospital, Second Military Medical University, Shanghai, People’s Republic of China
- * E-mail:
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Shaker OG, Sadik NAH, El-Hamid NA. Impact of single nucleotide polymorphism in tumor necrosis factor-α gene 308G/A in Egyptian asthmatic children and wheezing infants. Hum Immunol 2013; 74:796-802. [PMID: 23376082 DOI: 10.1016/j.humimm.2013.01.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 12/05/2012] [Accepted: 01/14/2013] [Indexed: 11/17/2022]
Abstract
Bronchial asthma is a common disease with multiple determinants that include genetic variation. Although tumor necrosis factor alpha (TNF-α) is a major pro-inflammatory cytokine, the functions of genetic polymorphisms in this cytokine has not been thoroughly examined in the context of asthma pathology. Therefore, we aimed to investigate whether single nucleotide polymorphism (SNP) in TNF-α is associated with asthma and wheezing and whether the association is related to the severity of the disease and other epidemiological factors. Frequencies of TNF-α-308G/A polymorphism were compared in 100 asthmatic children, 100 wheezy infants and 100 age and gender matched controls. Genotype frequencies for TNF-α-308G/A were significantly higher in asthmatic children (60%) and wheezy infants (68%) than the control group (30%). Higher serum levels of TNF-α were observed in genotypes G/A and G/G of asthmatic children and wheezy infants than in controls. No association was found between the G/A polymorphism and the severity of the disease, the total eosinophil count and IgE levels in both groups. We can conclude that genetic variation in TNF-α-308G/A may contribute to childhood asthma and wheezing. These findings could be helpful for future early intervention studies which may have a potential impact on family counseling and management.
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Affiliation(s)
- Olfat G Shaker
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
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Wang ZD, Lian D, Shen JL, Sun R, Xu W, Xin Z, Lei L, Jin LH, Jin SD. Association between the interleukin-4, interleukin-13 polymorphisms and asthma: a meta-analysis. Mol Biol Rep 2012; 40:1365-76. [PMID: 23070918 DOI: 10.1007/s11033-012-2180-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 10/08/2012] [Indexed: 11/25/2022]
Abstract
A numbers studies had been reported that the polymorphisms in the Interleukin 4 (IL-4) and Interleukin 13 (IL-13) genes were associated with susceptibility to asthma. However, the results were inconsistent and inconclusive. We carried out a meta-analysis of case-control genetic association studies to assess whether the combined data showed this association by using a genetic model-free approach. Thirty studies (total 12,781 asthma and 11,500 controls) for the IL-4 C-33T and C-589T, IL-13 C-1112T and G+2044A with asthma were included in the meta-analysis. The results indicated that there were an association between the IL-4 C-33T (P = 0.006) and C-589T (P = 0.04), IL-13 C-1112T (P = 0.002) and G+2044A (P = 0.04) and susceptibility to asthma. And the definition of asthma subgroup meta-analysis demonstrates that the IL-4 C-33T is not associated with nonatopic or atopic, and IL-4 C-589T and IL-13 C-1112T polymorphisms are not associated with atopic. In the ethnicity subgroup meta-analysis, the IL-4 -589T (P = 0.003) and the IL-13 -1112T (P < 0.00001) alleles are associated with asthma among Caucasian, but not on the IL-13 +2044A allele. In conclusion, IL-4 C-33T and C-589T, IL-13 C-1112T and G+2044A could be proposed as asthma susceptible SNPs. Further investigation in larger studies and meta-analysis is required.
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Affiliation(s)
- Zhen-Dong Wang
- Department of Histology and Embryology, Harbin Medical University, 194 Xuefu Road, Nangang, Harbin, 150081, Heilongjiang, China
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Abstract
Asthma is increasing in prevalence worldwide. It is characterized by typical symptoms and variable airway obstruction punctuated with episodes of worsening symptoms known as exacerbations. Underlying this clinical expression of disease is airway inflammation and remodeling. Cytokines and their networks are implicated in the innate and adaptive immune responses driving airway inflammation in asthma and are modulated by host-environment interactions. Asthma is a complex heterogeneous disease, and the paradigm of Th2 cytokine-mediated eosinophilic inflammation as a consequence of allergic sensitization has been challenged and probably represents a subgroup of asthma. Indeed, as attention has switched to the importance of severe asthma, which represents the highest burden both to the patient and health care provider, there is an increasing recognition of inflammatory subphenotypes that are likely to be driven by different cytokine networks. Interestingly, these networks may be specific to aspects of clinical expression as well as inflammatory cell profiles and therefore present novel phenotype-specific therapeutic strategies. Here, we review the breadth of cytokines implicated in the pathogenesis of asthma and focus upon the outcomes of early clinical trials conducted using cytokines or cytokine-blocking therapies.
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Affiliation(s)
- Dhananjay Desai
- Department of Infection, Inflammation and Immunity, Institute for Lung Health, University of Leicester, Glenfield Hospital, Leicester, UK
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Yang H, Dong H, Dai Y, Zheng Y. Association of interleukin-13 C-1112T and G+2044A polymorphisms with asthma: a meta-analysis. Respirology 2012; 16:1127-35. [PMID: 21762457 DOI: 10.1111/j.1440-1843.2011.02021.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND OBJECTIVE Polymorphisms in the IL13 gene have been reported to be associated with susceptibility to asthma. However, a number of studies have shown inconsistent results. A meta-analysis was performed to investigate whether polymorphisms in the IL13 gene were associated with the risk of asthma. METHODS Searches were performed of the Medline and Chinese National Knowledge Infrastructure (CNKI) databases, covering all papers published up to 31 August 2010. A recently proposed logistic regression-based method for meta-analysis of case-control genetic association studies was used to analyse pooled data. All statistical analyses were performed using stata version 10.0 software. RESULTS The IL13 C-1112T and G+2044A polymorphisms were investigated in 10 and 14 studies, respectively. The summary estimates suggested that both these polymorphisms were associated with susceptibility to asthma. Carriers of the IL13 -1112T allele had a 38.9% increased risk of asthma compared with homozygotes (-1112CC) (odds ratio (OR) 1.389, 95% confidence interval (CI): 1.103-1.749). Carriers of the IL13+2044A allele had a 40.0% increased risk of asthma compared with homozygotes (+2044GG) (OR 1.400, 95% CI: 1.137-1.724). In a subgroup analysis by ethnicity, the IL13 -1112T allele was associated with an increased risk of asthma among Caucasians (OR 1.629, 95% CI: 1.255-2.113) but not among Asians, and the IL13+2044A allele was associated with an increased risk of asthma among Asians (OR 1.436, 95% CI: 1.101-1.873) but not among Caucasians. CONCLUSIONS This meta-analysis indicated that the IL13 C-1112T and G+2044A polymorphisms predispose to asthma. Further studies, including pooling of individual data to facilitate evaluation of gene-gene and gene-environment interactions between these IL13 gene polymorphisms and asthma susceptibility, are recommended.
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Affiliation(s)
- Haijun Yang
- National Institute for Occupational Health and Poison Control, Key Laboratory of Chemical Safety and Health, Chinese Center for Disease Control and Prevention, Beijing, China
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IL-13 polymorphisms contribute to the risk of asthma: a meta-analysis. Clin Biochem 2011; 45:285-8. [PMID: 22222605 DOI: 10.1016/j.clinbiochem.2011.12.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Revised: 11/30/2011] [Accepted: 12/10/2011] [Indexed: 11/22/2022]
Abstract
OBJECTIVES The purpose of this study was to evaluate the effects of interleukin-13 (IL-13) polymorphisms on the risk of asthma using a meta-analysis. DESIGN AND METHODS Fifteen publications were identified by searching Pubmed, Embase, ISI, OVID, and EBSCO databases. Odds ratios with corresponding 95% confidence intervals were computed to estimate the association between IL-13 polymorphisms and risk of asthma. RESULTS The polymorphisms of R130Q (rs20541) and -1112C/T (rs1800925) in IL-13 gene were associated with significantly increased risks of asthma in overall analyses. Subgroup analyses showed that the elevated risks occurred in adult-onset asthma, Caucasians, and high quality studies. CONCLUSIONS This meta-analysis provides evidence that the R130Q and -1112C/T polymorphisms in IL-13 are risk factors for asthma.
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Genome-wide association study identifies HLA-DP as a susceptibility gene for pediatric asthma in Asian populations. PLoS Genet 2011; 7:e1002170. [PMID: 21814517 PMCID: PMC3140987 DOI: 10.1371/journal.pgen.1002170] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2011] [Accepted: 05/20/2011] [Indexed: 12/20/2022] Open
Abstract
Asthma is a complex phenotype influenced by genetic and environmental factors. We conducted a genome-wide association study (GWAS) with 938 Japanese pediatric asthma patients and 2,376 controls. Single-nucleotide polymorphisms (SNPs) showing strong associations (P<1×10−8) in GWAS were further genotyped in an independent Japanese samples (818 cases and 1,032 controls) and in Korean samples (835 cases and 421 controls). SNP rs987870, located between HLA-DPA1 and HLA-DPB1, was consistently associated with pediatric asthma in 3 independent populations (Pcombined = 2.3×10−10, odds ratio [OR] = 1.40). HLA-DP allele analysis showed that DPA1*0201 and DPB1*0901, which were in strong linkage disequilibrium, were strongly associated with pediatric asthma (DPA1*0201: P = 5.5×10−10, OR = 1.52, and DPB1*0901: P = 2.0×10−7, OR = 1.49). Our findings show that genetic variants in the HLA-DP locus are associated with the risk of pediatric asthma in Asian populations. Asthma is the most common chronic disorder in children, and asthma exacerbation is an important cause of childhood morbidity and hospitalization. Here, taking advantage of recent technological advances in human genetics, we performed a genome-wide association study and follow-up validation studies to identify genetic variants for asthma. By examining 6,428 Asians, we found rs987870 and HLA-DPA1*0201/DPB1*0901 were associated with pediatric asthma. The association signal was stretched in the region of HLA-DPB2, collagen, type XI, alpha 2 (COL11A2), and Retinoid X receptor beta (RXRB), but strong linkage disequilibrium in this region made it difficult to specifically identify causative variants. Interestingly, the SNP (or the HLA-DP allele) associated with pediatric asthma (Th-2 type immune diseases) in the present study confers protection against Th-1 type immune diseases, such as type 1 diabetes and rheumatoid arthritis. Therefore, the association results obtained in the present study could partially explain the inverse relationship between asthma and Th-1 type immune diseases and may lead to better understanding of Th-1/Th-2 immune diseases.
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The -308 G/A polymorphism in TNF-α gene is associated with asthma risk: an update by meta-analysis. J Clin Immunol 2010; 31:174-85. [PMID: 21082225 DOI: 10.1007/s10875-010-9477-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Accepted: 10/10/2010] [Indexed: 02/05/2023]
Abstract
BACKGROUND The -308 G/A polymorphism in TNF-α gene has been extensively investigated for association to asthma; however, results of different studies have been inconsistent. The aim of this study is to comprehensively evaluate the genetic risk of -308 G/A polymorphism in TNF-α gene for asthma. METHODS A meta-analysis was carried out to analyze the association between the -308 G/A polymorphism TNF-α gene and asthma risk. RESULTS A total of 4717 cases and 5012 controls in 29 case-control studies were included in this meta-analysis. The result indicated that the variant A allele carriers had a 38% increased risk of asthma, when compared with the homozygote GG (odds ratio (OR) = 1.40, 95% confidence interval (CI), 1.13-1.68 for AA + AG vs. GG). In the subgroup analysis by ethnicity, significant elevated risks were associated with A allele carriers in Asians (OR = 1.53, 95% CI = 1.17-2.01 and P = 0.002) but not in Caucasians(OR = 1.06, 95% CI = 0.75-1.50 and P = 0.73). In the subgroup analysis by age, significant elevated risks were associated with A allele carriers in adults (OR = 1.44, 95% CI = 1.14-1.81, and P = 0.002) and children (OR = 1.37, 95% CI = 1.03-1.82, and P = 0.003). In the subgroup analysis by atopic status, significant elevated risks of asthma were associated with A allele carriers in atopic population (OR = 1.68, 95% CI = 1.34-2.10, and P < 0.00001) but not in non-atopic population (OR = 0.98, 95% CI = 0.58-1.68, and P = 0.95). CONCLUSIONS Our results suggest that the TNF-α -308 G/A polymorphism contributes to susceptibility to asthma.
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Unifying candidate gene and GWAS Approaches in Asthma. PLoS One 2010; 5:e13894. [PMID: 21103062 PMCID: PMC2980484 DOI: 10.1371/journal.pone.0013894] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Accepted: 09/29/2010] [Indexed: 11/24/2022] Open
Abstract
The first genome wide association study (GWAS) for childhood asthma identified a novel major susceptibility locus on chromosome 17q21 harboring the ORMDL3 gene, but the role of previous asthma candidate genes was not specifically analyzed in this GWAS. We systematically identified 89 SNPs in 14 candidate genes previously associated with asthma in >3 independent study populations. We re-genotyped 39 SNPs in these genes not covered by GWAS performed in 703 asthmatics and 658 reference children. Genotyping data were compared to imputation data derived from Illumina HumanHap300 chip genotyping. Results were combined to analyze 566 SNPs covering all 14 candidate gene loci. Genotyped polymorphisms in ADAM33, GSTP1 and VDR showed effects with p-values <0.0035 (corrected for multiple testing). Combining genotyping and imputation, polymorphisms in DPP10, EDN1, IL12B, IL13, IL4, IL4R and TNF showed associations at a significance level between p = 0.05 and p = 0.0035. These data indicate that (a) GWAS coverage is insufficient for many asthma candidate genes, (b) imputation based on these data is reliable but incomplete, and (c) SNPs in three previously identified asthma candidate genes replicate in our GWAS population with significance after correction for multiple testing in 14 genes.
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Kim YY. Past, present, and future of allergy in Korea. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2010; 2:155-64. [PMID: 20592913 PMCID: PMC2892046 DOI: 10.4168/aair.2010.2.3.155] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2010] [Accepted: 05/12/2010] [Indexed: 12/13/2022]
Abstract
Korean allergology has made great progress in keeping pace with global scientific advances in spite of a short history. Outstanding academic and scientific researches have been performed in a variety of allergy fields in Korea. Epidemiologic studies revealed increasing prevalence of asthma and allergic diseases and considerable morbidity and mortality in Korea. Novel inhalant allergens such as citrus red mite and two-spotted spider mite as causes of asthma and allergic rhinitis have been discovered and reported in Korea. Bidirectional translational researches have been performed and are underway to elucidate the pathogenesis of asthma and allergy, mechanisms of airway inflammation and remodeling, and new therapeutic modalities for asthma and allergic diseases. Experimental asthma models of different phenotypes according to exposed levels of lipopolysaccharide or double-stranded RNA suggested the crucial role of the innate immunity in the development of allergic airway inflammation and a new insight for asthma pathogenesis, in which both Th1 and Th2 inflammation are involved. In the field of genetic researches, numerous genetic associations with asthma and asthma-related phenotypes, such as atopy, IgE production, and airway hyperresponsiveness, have been demonstrated in Korean population. The Easy Asthma Management (EAM) program, a computer-assisted asthma management program, is anticipated to facilitate the achievement of more successful clinical outcomes by filling the gaps between guidelines and actual practices. The Integration of these multi-disciplinary allergy research resources and translation of scientific achievements to the bedside and society will lead to better allergy and asthma control in Korea.
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Affiliation(s)
- You-Young Kim
- Seoul National University College of Medicine, Seoul, Korea
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Kim JY, Kim JH, Park TJ, Bae JS, Lee JS, Pasaje CF, Park BL, Cheong HS, Park JS, Park SW, Uh ST, Kim MK, Choi IS, Cho SH, Choi BW, Park CS, Shin HD. Positive association between aspirin-intolerant asthma and genetic polymorphisms of FSIP1: a case-case study. BMC Pulm Med 2010; 10:34. [PMID: 20513247 PMCID: PMC2896935 DOI: 10.1186/1471-2466-10-34] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Accepted: 06/01/2010] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Aspirin-intolerant asthma (AIA), which is caused by non-steroidal anti-inflammatory drugs (NSAIDs) such as aspirin, causes lung inflammation and reversal bronchi reduction, leading to difficulty in breathing. Aspirin is known to affect various parts inside human body, ranging from lung to spermatogenesis. FSIP1, also known as HDS10, is a recently discovered gene that encodes fibrous sheath interacting protein 1, and is regulated by amyloid beta precursor protein (APP). Recently, it has been reported that a peptide derived from APP is cleaved by alpha disintegrin and metalloproteinase 33 (ADAM33), which is an asthma susceptibility gene. It has also been known that the FSIP1 gene is expressed in airway epithelium. OBJECTIVES Aim of this study is to find out whether FSIP1 polymorphisms affect the onset of AIA in Korean population, since it is known that AIA is genetically affected by various genes. METHODS We conducted association study between 66 single nucleotide polymorphisms (SNPs) of the FSIP1 gene and AIA in total of 592 Korean subjects including 163 AIA and 429 aspirin-tolerant asthma (ATA) patients. Associations between polymorphisms of FSIP1 and AIA were analyzed with sex, smoking status, atopy, and body mass index (BMI) as covariates. RESULTS Initially, 18 SNPs and 4 haplotypes showed associations with AIA. However, after correcting the data for multiple testing, only one SNP showed an association with AIA (corrected P-value = 0.03, OR = 1.63, 95% CI = 1.23-2.16), showing increased susceptibility to AIA compared with that of ATA cases. Our findings suggest that FSIP1 gene might be a susceptibility gene for aspirin intolerance in asthmatics. CONCLUSION Although our findings did not suggest that SNPs of FSIP1 had an effect on the reversibility of lung function abnormalities in AIA patients, they did show significant evidence of association between the variants in FSIP1 and AIA occurrence among asthmatics in a Korean population.
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Affiliation(s)
- Jason Yongha Kim
- Department of Life Science, Sogang University, Seoul, Republic of Korea
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Finkelman FD, Hogan SP, Hershey GKK, Rothenberg ME, Wills-Karp M. Importance of cytokines in murine allergic airway disease and human asthma. THE JOURNAL OF IMMUNOLOGY 2010; 184:1663-74. [PMID: 20130218 DOI: 10.4049/jimmunol.0902185] [Citation(s) in RCA: 226] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Asthma is a common, disabling inflammatory respiratory disease that has increased in frequency and severity in developed nations. We review studies of murine allergic airway disease (MAAD) and human asthma that evaluate the importance of Th2 cytokines, Th2 response-promoting cytokines, IL-17, and proinflammatory and anti-inflammatory cytokines in MAAD and human asthma. We discuss murine studies that directly stimulate airways with specific cytokines or delete, inactivate, neutralize, or block specific cytokines or their receptors, as well as controversial issues including the roles of IL-5, IL-17, and IL-13Ralpha2 in MAAD and IL-4Ralpha expression by specific cell types. Studies of human asthmatic cytokine gene and protein expression, linkage of cytokine polymorphisms to asthma, cytokine responses to allergen stimulation, and clinical responses to cytokine antagonists are discussed as well. Results of these analyses establish the importance of specific cytokines in MAAD and human asthma and have therapeutic implications.
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Affiliation(s)
- Fred D Finkelman
- Department of Medicine, Cincinnati Veterans Affairs Medical Center, Cincinnati, OH 45220, USA.
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Almqvist C, Bradding PB, Chakir J, Ebo D, Grattan C, Kariyawasam HH, Savilahti E, Scadding GK, Vieths S, Wardlaw AJ, Woodfolk J. Developments in the field of allergy in 2008 through the eyes of Clinical & Experimental Allergy. Clin Exp Allergy 2010; 39:1482-98. [PMID: 19954428 DOI: 10.1111/j.1365-2222.2009.03355.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In 2008, many thousands of articles were published on the subject of allergic disease with over 200 reviews, editorials and original papers in Clinical & Experimental Allergy alone. These represent a considerable amount of data and even the most avid reader could only hope to assimilate a small fraction of this knowledge. There is therefore a pressing need for the key messages that emerge from a journal such as Clinical & Experimental Allergy to be summarized by experts in the field in a form that highlights the significance of the developments and sets them in the context of important findings in the field published in other journals. This also has the advantage of making connections between new data in conditions such as asthma, where articles often appear in different sections of the journal. As can be seen from this review, the body of work is diverse both in terms of the disease of interest and the discipline that has been used to investigate it. However, taken as a whole, we hope that the reader will gain a flavour of where the field is mature, where there remain controversies and where the cutting edge is leading.
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Daley D, Lemire M, Akhabir L, Chan-Yeung M, He JQ, McDonald T, Sandford A, Stefanowicz D, Tripp B, Zamar D, Bosse Y, Ferretti V, Montpetit A, Tessier MC, Becker A, Kozyrskyj AL, Beilby J, McCaskie PA, Musk B, Warrington N, James A, Laprise C, Palmer LJ, Paré PD, Hudson TJ. Analyses of associations with asthma in four asthma population samples from Canada and Australia. Hum Genet 2009; 125:445-59. [PMID: 19247692 DOI: 10.1007/s00439-009-0643-8] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2008] [Accepted: 02/13/2009] [Indexed: 11/28/2022]
Abstract
Asthma, atopy, and related phenotypes are heterogeneous complex traits, with both genetic and environmental risk factors. Extensive research has been conducted and over hundred genes have been associated with asthma and atopy phenotypes, but many of these findings have failed to replicate in subsequent studies. To separate true associations from false positives, candidate genes need to be examined in large well-characterized samples, using standardized designs (genotyping, phenotyping and analysis). In an attempt to replicate previous associations we amalgamated the power and resources of four studies and genotyped 5,565 individuals to conduct a genetic association study of 93 previously associated candidate genes for asthma and related phenotypes using the same set of 861 single-nucleotide polymorphisms (SNPs), a common genotyping platform, and relatively harmonized phenotypes. We tested for association between SNPs and the dichotomous outcomes of asthma, atopy, atopic asthma, and airway hyperresponsiveness using a general allelic likelihood ratio test. No SNP in any gene reached significance levels that survived correction for all tested SNPs, phenotypes, and genes. Even after relaxing the usual stringent multiple testing corrections by performing a gene-based analysis (one gene at a time as if no other genes were typed) and by stratifying SNPs based on their prior evidence of association, no genes gave strong evidence of replication. There was weak evidence to implicate the following: IL13, IFNGR2, EDN1, and VDR in asthma; IL18, TBXA2R, IFNGR2, and VDR in atopy; TLR9, TBXA2R, VDR, NOD2, and STAT6 in airway hyperresponsiveness; TLR10, IFNGR2, STAT6, VDR, and NPSR1 in atopic asthma. Additionally we found an excess of SNPs with small effect sizes (OR < 1.4). The low rate of replication may be due to small effect size, differences in phenotypic definition, differential environmental effects, and/or genetic heterogeneity. To aid in future replication studies of asthma genes a comprehensive database was compiled and is available to the scientific community at http://genapha.icapture.ubc.ca/.
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Affiliation(s)
- Denise Daley
- James Hogg iCAPTURE Center, University of British Columbia (UBC), 1081 Burrard Street, Vancouver, BC, V6Z 1Y6, Canada
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