1
|
Kanai M, Elzur R, Zhou W, Daly MJ, Finucane HK. Meta-analysis fine-mapping is often miscalibrated at single-variant resolution. CELL GENOMICS 2022; 2:100210. [PMID: 36643910 PMCID: PMC9839193 DOI: 10.1016/j.xgen.2022.100210] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Meta-analysis is pervasively used to combine multiple genome-wide association studies (GWASs). Fine-mapping of meta-analysis studies is typically performed as in a single-cohort study. Here, we first demonstrate that heterogeneity (e.g., of sample size, phenotyping, imputation) hurts calibration of meta-analysis fine-mapping. We propose a summary statistics-based quality-control (QC) method, suspicious loci analysis of meta-analysis summary statistics (SLALOM), that identifies suspicious loci for meta-analysis fine-mapping by detecting outliers in association statistics. We validate SLALOM in simulations and the GWAS Catalog. Applying SLALOM to 14 meta-analyses from the Global Biobank Meta-analysis Initiative (GBMI), we find that 67% of loci show suspicious patterns that call into question fine-mapping accuracy. These predicted suspicious loci are significantly depleted for having nonsynonymous variants as lead variant (2.7×; Fisher's exact p = 7.3 × 10-4). We find limited evidence of fine-mapping improvement in the GBMI meta-analyses compared with individual biobanks. We urge extreme caution when interpreting fine-mapping results from meta-analysis of heterogeneous cohorts.
Collapse
Affiliation(s)
- Masahiro Kanai
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA 02142, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA 02115, USA
- Department of Statistical Genetics, Osaka University Graduate School of Medicine, Suita 565-0871, Japan
- Corresponding author
| | - Roy Elzur
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA 02142, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Wei Zhou
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA 02142, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | | | - Mark J. Daly
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA 02142, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland
| | - Hilary K. Finucane
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA 02142, USA
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
- Corresponding author
| |
Collapse
|
2
|
The Genetic Factors of the Airway Epithelium Associated with the Pathology of Asthma. Genes (Basel) 2022; 13:genes13101870. [PMID: 36292755 PMCID: PMC9601469 DOI: 10.3390/genes13101870] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 11/04/2022] Open
Abstract
Asthma is a chronic disease of the airways characterized by inflammation, tightened muscles, and thickened airway walls leading to symptoms such as shortness of breath, chest tightness, and cough in patients. The increased risk of asthma in children of asthmatics parents supports the existence of genetic factors involved in the pathogenesis of this disease. Genome-wide association studies have discovered several single nucleotide polymorphisms associated with asthma. These polymorphisms occur within several genes and can contribute to different asthma phenotypes, affect disease severity, and clinical response to different therapies. The complexity in the etiology of asthma also results from interactions between environmental and genetic factors. Environmental exposures have been shown to increase the prevalence of asthma in individuals who are genetically susceptible. This review summarizes what is currently known about the genetics of asthma in relation to risk, response to common treatments, and gene-environmental interactions.
Collapse
|
3
|
Hanton AJ, Scott F, Stenzel K, Nausch N, Zdesenko G, Mduluza T, Mutapi F. Frequency distribution of cytokine and associated transcription factor single nucleotide polymorphisms in Zimbabweans: Impact on schistosome infection and cytokine levels. PLoS Negl Trop Dis 2022; 16:e0010536. [PMID: 35759449 PMCID: PMC9236240 DOI: 10.1371/journal.pntd.0010536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 05/25/2022] [Indexed: 11/18/2022] Open
Abstract
Cytokines mediate T-helper (TH) responses that are crucial for determining the course of infection and disease. The expression of cytokines is regulated by transcription factors (TFs). Here we present the frequencies of single nucleotide polymorphisms (SNPs) in cytokine and TF genes in a Zimbabwean population, and further relate SNPs to susceptibility to schistosomiasis and cytokine levels. Individuals (N = 850) were genotyped for SNPs across the cytokines IL4, IL10, IL13, IL33, and IFNG, and their TFs STAT4, STAT5A/B, STAT6, GATA3, FOXP3, and TBX21 to determine allele frequencies. Circulatory levels of systemic and parasite-specific IL-4, IL-5, IL-10, IL-13, and IFNγ were quantified via enzyme-linked immunosorbent assay. Schistosoma haematobium infection was determined by enumerating parasite eggs excreted in urine by microscopy. SNP allele frequencies were related to infection status by case-control analysis and logistic regression, and egg burdens and systemic and parasite-specific cytokine levels by analysis of variance and linear regression. Novel findings were i) IL4 rs2070874*T’s association with protection from schistosomiasis, as carriage of ≥1 allele gave an odds ratio of infection of 0.597 (95% CIs, 0.421–0.848, p = 0.0021) and IFNG rs2069727*G’s association with susceptibility to schistosomiasis as carriage of ≥1 allele gave an odds ratio of infection of 1.692 (1.229–2.33, p = 0.0013). Neither IL4 rs2070874*T nor IFNG rs2069727*G were significantly associated with cytokine levels. This study found TH2-upregulating SNPs were more frequent among the Zimbabwean sample compared to African and European populations, highlighting the value of immunogenetic studies of African populations in the context of infectious diseases and other conditions, including allergic and atopic disease. In addition, the identification of novel infection-associated alleles in both TH1- and TH2-associated genes highlights the role of both in regulating and controlling responses to Schistosoma.
Collapse
Affiliation(s)
- Andrew John Hanton
- Institute of Immunology & Infection Research, University of Edinburgh, Ashworth Laboratories, Edinburgh, United Kingdom
- NIHR Global Health Research Unit Tackling Infections to Benefit Africa (TIBA), University of Edinburgh, Ashworth Laboratories, Edinburgh, United Kingdom
- * E-mail:
| | - Fiona Scott
- Institute of Immunology & Infection Research, University of Edinburgh, Ashworth Laboratories, Edinburgh, United Kingdom
- NIHR Global Health Research Unit Tackling Infections to Benefit Africa (TIBA), University of Edinburgh, Ashworth Laboratories, Edinburgh, United Kingdom
| | - Katharina Stenzel
- Institute of Immunology & Infection Research, University of Edinburgh, Ashworth Laboratories, Edinburgh, United Kingdom
| | - Norman Nausch
- Institute of Immunology & Infection Research, University of Edinburgh, Ashworth Laboratories, Edinburgh, United Kingdom
| | - Grace Zdesenko
- Institute of Immunology & Infection Research, University of Edinburgh, Ashworth Laboratories, Edinburgh, United Kingdom
- NIHR Global Health Research Unit Tackling Infections to Benefit Africa (TIBA), University of Edinburgh, Ashworth Laboratories, Edinburgh, United Kingdom
| | - Takafira Mduluza
- Department of Biochemistry, University of Zimbabwe, Harare, Zimbabwe
| | - Francisca Mutapi
- Institute of Immunology & Infection Research, University of Edinburgh, Ashworth Laboratories, Edinburgh, United Kingdom
- NIHR Global Health Research Unit Tackling Infections to Benefit Africa (TIBA), University of Edinburgh, Ashworth Laboratories, Edinburgh, United Kingdom
| |
Collapse
|
4
|
Genetic Variations in Nucleotide Excision Repair Pathway Genes and Risk of Allergic Rhinitis. Mediators Inflamm 2022; 2022:7815283. [PMID: 35693108 PMCID: PMC9187482 DOI: 10.1155/2022/7815283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 05/14/2022] [Accepted: 05/26/2022] [Indexed: 11/24/2022] Open
Abstract
Background Allergic rhinitis (AR) is the most frequent inflammatory disorder in the nasal mucosa that remains unclear etiology. Mounting studies suggested that genetic instability could trigger and worsen the inflammatory response. The nucleotide excision repair (NER) system is an important pathway in maintaining the stability of the genome. Therefore, the genetic variations in NER pathway genes may have potential effects on AR risk. Methods We evaluated the correlation between 19 candidate single nucleotide polymorphisms (SNPs) in NER pathway genes and AR susceptibility by a case-control study in a Chinese population, which contains 508 AR cases and 526 controls. Results Three independent SNPs were identified as significantly associated with AR susceptibility, including ERCC1 rs2298881 C > A (recessive model: adjusted odds ratios (OR) = 0.30, 95%confidence interval (CI) = 0.18–0.50, P < 0.0001), ERCC1 rs11615 G > A (dominant model: adjusted OR = 1.44, 95%CI = 1.04–2.01, P = 0.030), and XPC rs2228001 A > C (dominant model: adjusted OR = 0.68, 95%CI = 0.49–0.95, P = 0.024). Stratified analysis showed that ERCC1 rs2298881 AA genotype was correlated with a lower risk of AR among all the subgroups compared with rs2298881 CC/CA genotype. XPC rs2228001 AC/CC genotype reduced AR risk among the following subgroups: age > 60 months, clinical stage I and III. Conclusion Our finding showed that genetic variations in NER pathway genes: ERCC1 and XPC may affect the risk of AR, which will provide new insights into the genetics of AR from the perspective of DNA damage repair.
Collapse
|
5
|
Inflammatory Arthritis and Bone Metabolism Regulated by Type 2 Innate and Adaptive Immunity. Int J Mol Sci 2022; 23:ijms23031104. [PMID: 35163028 PMCID: PMC8834748 DOI: 10.3390/ijms23031104] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 02/08/2023] Open
Abstract
While type 2 immunity has traditionally been associated with the control of parasitic infections and allergic reactions, increasing evidence suggests that type 2 immunity exerts regulatory functions on inflammatory diseases such as arthritis, and also on bone homeostasis. This review summarizes the current evidence of the regulatory role of type 2 immunity in arthritis and bone. Key type 2 cytokines, like interleukin (IL)-4 and IL-13, but also others such as IL-5, IL-9, IL-25, and IL-33, exert regulatory properties on arthritis, dampening inflammation and inducing resolution of joint swelling. Furthermore, these cytokines share anti-osteoclastogenic properties and thereby reduce bone resorption and protect bone. Cellular effectors of this action are both T cells (i.e., Th2 and Th9 cells), but also non-T cells, like type 2 innate lymphoid cells (ILC2). Key regulatory actions mediated by type 2 cytokines and immune cells on both inflammation as well as bone homeostasis are discussed.
Collapse
|
6
|
Panganiban RA, Lu Q. A Long Non-Coding RNA "lnc"ed to Asthma Genetics. Am J Respir Cell Mol Biol 2022; 66:243-244. [PMID: 35030310 PMCID: PMC8937238 DOI: 10.1165/rcmb.2021-0534ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Ronald A Panganiban
- Harvard University T H Chan School of Public Health, 1857, Boston, Massachusetts, United States
| | - Quan Lu
- Harvard University T H Chan School of Public Health, 1857, Boston, Massachusetts, United States;
| |
Collapse
|
7
|
Li YK, Zhang XX, Yang Y, Gao J, Shi Q, Liu SD, Fu WP, Sun C. Convergent Evidence Supports TH2LCRR as a Novel Asthma Susceptibility Gene. Am J Respir Cell Mol Biol 2021; 66:283-292. [PMID: 34851809 DOI: 10.1165/rcmb.2020-0481oc] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Asthma is a common complex disease with apparent genetic predispositions, and previous genome-wide association studies suggest that rs1295686 within the IL13 (interleukin 13) gene is significantly associated with asthma. Analysis of the data provided by the 1000 Genomes Project indicated that there are additional four SNPs in nearly complete linkage disequilibrium with rs1295686 in Caucasians. However, the causal SNPs and the associated mechanism remain unclear. To investigate this issue, functional genomics approaches were utilized to analyze the functions of these SNPs. Dual-luciferase assays indicated that the functional SNP is not rs1295686 but a haplotype consisting of other three SNPs, rs1295685, rs848 and rs847. Through chromosome conformation capture, it was found that the enhancer containing the three functional SNPs interacts with the promoter of TH2LCRR (T helper type 2 locus control region associated RNA), a recently identified long non-coding RNA. RNA-seq data analysis indicated that TH2LCRR expression is significantly increased in asthma patients and is dependent on the genotype at this locus, indicating that TH2LCRR is a novel susceptibility gene for asthma and that these SNPs confer asthma risk by regulating TH2LCRR expression. By chromatin immunoprecipitation, the related transcription factors that bind in the region surrounding these three SNPs were identified, and their interactions were investigated by functional genomics approaches. Our effort identified a novel mechanism through which genetic variations at this locus could influence asthma susceptibility.
Collapse
Affiliation(s)
- Yi-Kun Li
- Shaanxi Normal University, 12401, College of Life Sciences, Xi'an, China
| | - Xin-Xin Zhang
- Shaanxi Normal University, 12401, College of Life Sciences, Xi'an, China
| | - Yuan Yang
- Shaanxi Normal University, 12401, College of Life Sciences, Xi'an, China
| | - Jing Gao
- Shaanxi Normal University, 12401, College of Life Sciences, Xi'an, China
| | - Qiang Shi
- Shaanxi Normal University, 12401, College of Life Sciences, Xi'an, China
| | - Shao-Dong Liu
- Shaanxi Normal University, 12401, College of Life Sciences, Xi'an, China
| | - Wei-Ping Fu
- Kunming Medical University First Affilliated Hospital, 36657, Kunming, China
| | - Chang Sun
- Shaanxi Normal University, 12401, College of Life Sciences, Xi'an, China;
| |
Collapse
|
8
|
Gevenois PJLY, De Pauw P, Schoonooghe S, Delporte C, Sebti T, Amighi K, Muyldermans S, Wauthoz N. Development of Neutralizing Multimeric Nanobody Constructs Directed against IL-13: From Immunization to Lead Optimization. THE JOURNAL OF IMMUNOLOGY 2021; 207:2608-2620. [PMID: 34645688 DOI: 10.4049/jimmunol.2100250] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 09/16/2021] [Indexed: 11/19/2022]
Abstract
IL-13 is a pleiotropic cytokine mainly secreted by Th2 cells. It reacts with many different types of cells involved in allergy, inflammation, and fibrosis, e.g., mastocytes, B cells, and fibroblasts. The role of IL-13 in conditions involving one or several of these phenotypes has therefore been extensively investigated. The inhibition of this cytokine in animal models for various pathologies yielded highly promising results. However, most human trials relying on anti-IL-13 conventional mAbs have failed to achieve a significant improvement of the envisaged disorders. Where some studies might have suffered from several weaknesses, the strategies themselves, such as targeting only IL-13 using conventional mAbs or employing a systemic administration, could be questioned. Nanobodies are recombinant Ag-binding fragments derived from the variable part of H chain-only Abs occurring in Camelidae. Thanks to their single-domain structure, small size (≈15 kDa), good stability, and solubility, they can be engineered into multispecific constructs for combined therapies or for use in new strategies such as formulations for local administration, e.g., pulmonary administration. In this study, we describe the generation of 38 nanobodies that can be subdivided into five CDR3 families. Nine nanobodies were found to have a good affinity profile (KD = 1-200 nM), but none were able to strongly inhibit IL-13 biological activity in vitro (IC50 > 50 µM: HEK-Blue IL-13/IL-4 cells). Multimeric constructs were therefore designed from these inhibitors and resulted in an up to 36-fold improvement in affinity and up to 300-fold enhancement of the biological activity while conserving a high specificity toward IL-13.
Collapse
Affiliation(s)
- Philippe J-L Y Gevenois
- Unit of Pharmaceutics and Biopharmaceutics, Free University of Brussels, Faculty of Pharmacy, Brussels, Belgium;
| | - Pieter De Pauw
- Laboratory of Cellular and Molecular Immunology, Free University of Brussels, Ixelles, Belgium
| | - Steve Schoonooghe
- Flemish Institute for Biotechnology Nanobody Core, Free University of Brussels, Brussels, Belgium
| | - Cédric Delporte
- Unit of Pharmacognosy, Bioanalysis and Drug Discovery, RD3 and Analytical Platform of the Faculty of Pharmacy, Free University of Brussels, Brussels, Belgium; and
| | | | - Karim Amighi
- Unit of Pharmaceutics and Biopharmaceutics, Free University of Brussels, Faculty of Pharmacy, Brussels, Belgium
| | - Serge Muyldermans
- Laboratory of Cellular and Molecular Immunology, Free University of Brussels, Ixelles, Belgium
| | - Nathalie Wauthoz
- Unit of Pharmaceutics and Biopharmaceutics, Free University of Brussels, Faculty of Pharmacy, Brussels, Belgium
| |
Collapse
|
9
|
Laha A, Ghosh A, Moitra S, Biswas H, Saha NC, Bhattacharya S, Saha GK, Podder S. Association of HLA-DQ and IL13 gene variants with challenge-proven shrimp allergy in West Bengal, India. Immunogenetics 2020; 72:489-498. [PMID: 33175217 DOI: 10.1007/s00251-020-01185-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 11/02/2020] [Indexed: 10/23/2022]
Abstract
Little is known about genetic factors and mechanisms underlying shrimp allergy. Genome-wide association studies identified HLA class-II and IL13 genes as highly plausible candidates for shrimp allergy. The present study was designed to investigate potential associations of HLA-DQ rs9275596, IL13 rs20541, and IL13 rs1800925 polymorphisms with challenge-proven shrimp allergy using the data from 532 people of West Bengal, India; selected on basis of positive skin prick test, elevated specific IgE and medical history. Risk genotypes, i.e., HLA-DQ rs9275596 CC, IL13 rs20541 AA, and IL13 rs1800925 TT, were found to be significantly associated with challenge positive shrimp allergy (P = 0.04, 0.01, and 0.03, respectively). Distribution of genotypes for HLA-DQ and IL13 polymorphisms in allergic and control subjects showed significant difference between younger (20-40 years) and older (> 40 years) age group (P = 0.006). Risk genotypes significantly associated with elevated shrimp-specific IgE. IL13 TA haplotype significantly associated with shrimp allergy and elevated specific IgE (P = 0.02). Synergistic effect of IL13 TA haplotype-HLA-DQ rs9275596 CC genotype interaction significantly elevated specific IgE (P = 0.03). The present study suggests that HLA-DQ and IL13 polymorphisms pose major risk for shrimp allergic patients in West Bengal, India and thus could be helpful for early target-specific therapeutic intervention in near future.
Collapse
Affiliation(s)
- Arghya Laha
- Allergology and Applied Entomology Research Laboratory, Department of Zoology, University of Burdwan, Bardhaman, 713104, West Bengal, India
| | - Amlan Ghosh
- Department of Life Sciences, Presidency University, Kolkata, 700073, West Bengal, India
| | - Saibal Moitra
- Allergy and Asthma Research Centre, Kolkata- 700029, West Bengal, India
| | - Himani Biswas
- Post Graduate Department of Zoology, Krishnagar Government College, Krishnagar, 741101, West Bengal, India
| | - Nimai Chandra Saha
- Vice-Chancellor, University of Burdwan, Bardhaman, 713104, West Bengal, India
| | - Srijit Bhattacharya
- Post Graduate Department of Physics, Barasat Government College, Kolkata, 700124, West Bengal, India
| | - Goutam Kumar Saha
- Department of Zoology, University of Calcutta, Kolkata, 700019, West Bengal, India
| | - Sanjoy Podder
- Allergology and Applied Entomology Research Laboratory, Department of Zoology, University of Burdwan, Bardhaman, 713104, West Bengal, India.
| |
Collapse
|
10
|
Valatabar N, Hosseinpourfeizi M, Safaralizadeh R, Sadeghi-Shabestari M. Relationships Between IL-13 and IL-4 Genotypes and Aeroallergens with Risk of Allergic Rhinitis in Iranian-Azeri. PEDIATRIC ALLERGY IMMUNOLOGY AND PULMONOLOGY 2020; 33:33-38. [PMID: 33406021 DOI: 10.1089/ped.2019.1099] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Background: Up to 40% of the world populations are affected by allergic rhinitis (AR). Interplay between genetics, epigenetics, and environmental factors leads to allergic disease. Objective: In this study, we evaluated the accompaniment between polymorphic variants of IL-13 and IL-4 and aeroallergens among Iranian-Azeri children and adolescent in AR's risk. Methods: Five-hundred AR patients and 300 healthy individuals were enrolled in this study after diagnosis via blood testing for IgE and skin prick test by subspecialty of Allergy and Immunology from Azerbaijan, northwest of Iran, from 2017 to 2019. Genomic DNA was prepared from all samples for genotyping of IL-4 and IL-13. Results: We identified genetic variation of IL-13 and IL-4 and important aeroallergens that could increase the AR risk during childhood and adolescent. The risk of AR increased in the subjects with +2044GA genotype of IL13 [adjusted odds ratio (OR), 1.80; 95% confidence interval (CI), 0.97-3.33] and -590CT genotype of IL4 (adjusted OR, 1.94; 95% CI, 1.00-3.87) in childhoods, compared with the control subjects. However, none of genotypes and allele frequencies of IL4 -590C/T and IL13 +2044G/A polymorphisms revealed significant variation between the AR patients and controls in adulthood. The frequency of sensitization to pollens was high in all genotypes of IL4 -590C/T and IL13 +2044G/A polymorphisms in both age groups of AR patients. Conclusion: AR is considered to be the most common form of atopic disease. Susceptible individuals had family history of allergic disease and indicated sensitivity to various environmental factors. In this study, pollen and feather played an important role in occurrence of AR. Childhood with GA at IL13 +2044 and CT at IL4 -590 are at increased risk for AR. Moreover, further studies with more samples are required to confirm our findings and also to help us develop new procedure for genetically detecting more efficient proceedings of prevention and intervention.
Collapse
Affiliation(s)
- Nazila Valatabar
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | | | - Reza Safaralizadeh
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Mahnaz Sadeghi-Shabestari
- Immunology Research Center of Tabriz, TB and Lung Research Center of Tabriz, Children Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
11
|
Anti-IL-13Rα2 therapy promotes recovery in a murine model of inflammatory bowel disease. Mucosal Immunol 2019; 12:1174-1186. [PMID: 31308480 PMCID: PMC6717533 DOI: 10.1038/s41385-019-0189-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 05/21/2019] [Accepted: 06/23/2019] [Indexed: 02/08/2023]
Abstract
There continues to be a major need for more effective inflammatory bowel disease (IBD) therapies. IL-13Rα2 is a decoy receptor that binds the cytokine IL-13 with high affinity and diminishes its STAT6-mediated effector functions. Previously, we found that IL-13Rα2 was necessary for IBD in mice deficient in the anti-inflammatory cytokine IL-10. Here, we tested for the first time a therapeutic antibody specifically targeting IL-13Rα2. We also used the antibody and Il13ra2-/- mice to dissect the role of IL-13Rα2 in IBD pathogenesis and recovery. Il13ra2-/- mice were modestly protected from induction of dextran sodium sulfate (DSS)-induced colitis. Following a 7-day recovery period, Il13ra2-/- mice or wild-type mice administered the IL-13Rα2-neutralizing antibody had significantly improved colon health compared to control mice. Neutralizing IL-13Rα2 to increase IL-13 bioavailability promoted resolution of IBD even if neutralization occurred only during recovery. To link our observations in mice to a large human cohort, we conducted a phenome-wide association study of a more active variant of IL-13 (R130Q) that has reduced affinity for IL-13Rα2. Human subjects carrying R130Q reported a lower risk for Crohn's disease. Our findings endorse moving anti-IL-13Rα2 into preclinical drug development with the goal of accelerating recovery and maintaining remission in Crohn's disease patients.
Collapse
|
12
|
Mao YM, Zhao CN, Leng J, Leng RX, Ye DQ, Zheng SG, Pan HF. Interleukin-13: A promising therapeutic target for autoimmune disease. Cytokine Growth Factor Rev 2018; 45:9-23. [PMID: 30581068 DOI: 10.1016/j.cytogfr.2018.12.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 12/11/2018] [Indexed: 12/16/2022]
Abstract
Interleukin-13 (IL-13) was previously thought to be a redundant presence of IL-4, but in recent years its role in immunity, inflammation, fibrosis, and allergic diseases has become increasingly prominent. IL-13 can regulate several subtypes of T helper (Th) cells and affect their transformation, including Th1, Th2, T17, etc., thus it may play an important role in immune system. Previous studies have revealed that IL-13 is implicated in the pathogenesis of autoimmune diseases, such as systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), systemic sclerosis (SSc), ulcerative colitis (UC), type 1 diabetes (T1D), sjogren's syndrome (SS), etc. In this review, we will briefly discuss the biological features of IL-13 and summarize recent advances in the role of IL-13 in the development and pathogenesis of autoimmune diseases. This information may provide new perspectives and suggestions for the selection of therapeutic targets for autoimmune diseases.
Collapse
Affiliation(s)
- Yan-Mei Mao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, Anhui, 230032, China
| | - Chan-Na Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, Anhui, 230032, China
| | - Jing Leng
- Anhui Academy of Medical Sciences, 15 Yonghong Road, Hefei, Anhui, China
| | - Rui-Xue Leng
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, Anhui, 230032, China
| | - Dong-Qing Ye
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, Anhui, 230032, China
| | - Song Guo Zheng
- Division of Rheumatology, Penn State College of Medicine, Hershey, PA 17033, USA.
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, Anhui, 230032, China.
| |
Collapse
|
13
|
Chen ML, Zhao H, Huang QP, Xie ZF. Single nucleotide polymorphisms of IL-13 and CD14 genes in allergic rhinitis: a meta-analysis. Eur Arch Otorhinolaryngol 2018; 275:1491-1500. [DOI: 10.1007/s00405-018-4975-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Accepted: 04/13/2018] [Indexed: 10/17/2022]
|
14
|
Wang R, Lu YL, Huang HT, Qin HM, Lan Y, Wang JL, Wang CF, Wei YS. Association of interleukin 13 gene polymorphisms and plasma IL 13 level with risk of systemic lupus erythematosus. Cytokine 2018; 104:92-97. [DOI: 10.1016/j.cyto.2017.09.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 09/26/2017] [Accepted: 09/28/2017] [Indexed: 02/08/2023]
|
15
|
Halwani R, Vazquez-Tello A, Kenana R, Al-Otaibi M, Alhasan KA, Shakoor Z, Al-Muhsen S. Association of IL-13 rs20541 and rs1295686 variants with symptomatic asthma in a Saudi Arabian population. J Asthma 2017; 55:1157-1165. [PMID: 29211635 DOI: 10.1080/02770903.2017.1400047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Interleukin 13 (IL-13) plays a critical pro-inflammatory role in asthma. Several single nucleotide polymorphisms (SNPs) are associated with asthma susceptibility in specific populations; however, further replicative studies in other ethnic groups are mandatory. METHODS The association between IL-13 SNPs rs762534, rs20541, rs1295686, and rs1800925 (risk alleles A, A, T, and A, respectively) and asthma predisposition in a Saudi Arabian cohort was examined via a case-control cross-sectional study. RESULTS The frequencies of alleles between asthmatics and control populations were significantly different for rs20541 and rs1295686 SNPs (p < 0.001), whereas the frequencies of genotypes between asthmatics and controls were significantly different only for rs20541. The association of the risk (minor) alleles with asthma was examined using the dominant genetic model. Individuals with at least one copy of the risk alleles A (for rs20541) and T (for rs1295686) had significantly greater odds of being asthmatic (OR = 2.13, 95% CI = 1.39-3.26, p < 0.0001; OR = 1.69, 95% CI = 1.12-2.54, p = 0.008) relative to their most common homozygous genotypes. On the other hand, the minor A alleles for rs762534 and rs1800925 were not significantly associated with asthma risk. Regarding haplotype association analysis, individuals with at least one copy of the minor "risk" allele for both rs20541 and rs1295686 (CATG and CATA, respectively) had greater odds of being asthmatic relative to CGCG haplotype; however, this trend was not statistically significant (p > 0.3). CONCLUSIONS IL-13 minor T and A alleles for rs1295686 and rs20541, respectively, were associated with significantly higher risk of asthma in the Saudi Arabian population.
Collapse
Affiliation(s)
- Rabih Halwani
- a Immunology Research Laboratory and Asthma Research Chair, College of Medicine , King Saud University , Riyadh , Saudi Arabia.,b Department of Pediatrics , College of Medicine, King Saud University , Riyadh , Saudi Arabia
| | - Alejandro Vazquez-Tello
- a Immunology Research Laboratory and Asthma Research Chair, College of Medicine , King Saud University , Riyadh , Saudi Arabia
| | - Rosan Kenana
- a Immunology Research Laboratory and Asthma Research Chair, College of Medicine , King Saud University , Riyadh , Saudi Arabia
| | - Maram Al-Otaibi
- c Department of Pathology , King Khalid University Hospital, College of Medicine, King Saud University , Riyadh , Saudi Arabia
| | - Khalid A Alhasan
- b Department of Pediatrics , College of Medicine, King Saud University , Riyadh , Saudi Arabia
| | - Zahid Shakoor
- c Department of Pathology , King Khalid University Hospital, College of Medicine, King Saud University , Riyadh , Saudi Arabia
| | - Saleh Al-Muhsen
- a Immunology Research Laboratory and Asthma Research Chair, College of Medicine , King Saud University , Riyadh , Saudi Arabia.,b Department of Pediatrics , College of Medicine, King Saud University , Riyadh , Saudi Arabia
| |
Collapse
|
16
|
Liao N, Zhao H, Chen ML, Xie ZF. Association of the IL-13 polymorphisms rs1800925 and rs20541 with chronic obstructive pulmonary disease risk: An updated meta-analysis. Medicine (Baltimore) 2017; 96:e8556. [PMID: 29381928 PMCID: PMC5708927 DOI: 10.1097/md.0000000000008556] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The aim of this study was to investigate if 2 common single nucleotide polymorphisms (SNPs) in the interleukin-13 (IL-13) gene, rs1800925 and rs20541 are associated with chronic obstructive pulmonary disease (COPD) risk.Case-control association studies were retrieved systematically from PubMed, Scopus, ISI Web of Science, China National Knowledge Infrastructure, and Wanfang databases using standardized subject terms.Eleven studies including 3077 participants (1896 cases and 1181 controls) were analyzed. Evidence for a positive association between the T allele of the IL-13 SNP rs1800925 and COPD risk was found in the overall population (odds ratio [OR] = 1.57, 95% confidence interval [95% CI]: 1.21-2.04, Pz = .001). In subgroup analysis according to ethnicity, the T allele of rs1800925 was associated with an increased risk of COPD in Asians (OR = 1.88, 95% CI: 1.23-2.87, Pz = .004) and Caucasians (OR = 1.30, 95% CI: 1.01-1.67, Pz = .041), respectively. For rs20541, the results suggested an association between rs20541 and COPD risk in Caucasians under the recessive model (OR = 2.79, 95% CI: 1.13-6.92, Pz = .026), whereas this SNP was not associated with COPD in Asians.This meta-analysis suggests that the T allele of rs1800925 is associated with the increased risk of COPD in both Asians and Caucasians, whereas rs20541 is associated with the risk of COPD in Caucasians but not in Asians.
Collapse
|
17
|
Marenholz I, Grosche S, Kalb B, Rüschendorf F, Blümchen K, Schlags R, Harandi N, Price M, Hansen G, Seidenberg J, Röblitz H, Yürek S, Tschirner S, Hong X, Wang X, Homuth G, Schmidt CO, Nöthen MM, Hübner N, Niggemann B, Beyer K, Lee YA. Genome-wide association study identifies the SERPINB gene cluster as a susceptibility locus for food allergy. Nat Commun 2017; 8:1056. [PMID: 29051540 PMCID: PMC5648765 DOI: 10.1038/s41467-017-01220-0] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 08/31/2017] [Indexed: 02/08/2023] Open
Abstract
Genetic factors and mechanisms underlying food allergy are largely unknown. Due to heterogeneity of symptoms a reliable diagnosis is often difficult to make. Here, we report a genome-wide association study on food allergy diagnosed by oral food challenge in 497 cases and 2387 controls. We identify five loci at genome-wide significance, the clade B serpin (SERPINB) gene cluster at 18q21.3, the cytokine gene cluster at 5q31.1, the filaggrin gene, the C11orf30/LRRC32 locus, and the human leukocyte antigen (HLA) region. Stratifying the results for the causative food demonstrates that association of the HLA locus is peanut allergy-specific whereas the other four loci increase the risk for any food allergy. Variants in the SERPINB gene cluster are associated with SERPINB10 expression in leukocytes. Moreover, SERPINB genes are highly expressed in the esophagus. All identified loci are involved in immunological regulation or epithelial barrier function, emphasizing the role of both mechanisms in food allergy.
Collapse
Affiliation(s)
- Ingo Marenholz
- Max-Delbrück-Center (MDC) for Molecular Medicine, 13125, Berlin, Germany.,Clinic for Pediatric Allergy, Experimental and Clinical Research Center, Charité University Medical Center, 13125, Berlin, Germany
| | - Sarah Grosche
- Max-Delbrück-Center (MDC) for Molecular Medicine, 13125, Berlin, Germany.,Clinic for Pediatric Allergy, Experimental and Clinical Research Center, Charité University Medical Center, 13125, Berlin, Germany
| | - Birgit Kalb
- Max-Delbrück-Center (MDC) for Molecular Medicine, 13125, Berlin, Germany.,Clinic for Pediatric Allergy, Experimental and Clinical Research Center, Charité University Medical Center, 13125, Berlin, Germany.,Department of Pediatric Pneumology and Immunology, Charité University Medical Center, 13353, Berlin, Germany
| | - Franz Rüschendorf
- Max-Delbrück-Center (MDC) for Molecular Medicine, 13125, Berlin, Germany
| | - Katharina Blümchen
- Department of Allergy, Pulmonology and Cystic Fibrosis, Children's Hospital, Goethe University, 60590, Frankfurt am Main, Germany
| | - Rupert Schlags
- Department of Pediatric Pneumology and Allergology, Wangen Hospital, 88239, Wangen, Germany
| | - Neda Harandi
- Department of Pediatric Pneumology and Allergology, Wangen Hospital, 88239, Wangen, Germany
| | - Mareike Price
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, 30625, Hannover, Germany
| | - Gesine Hansen
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, 30625, Hannover, Germany
| | - Jürgen Seidenberg
- Department of Pediatric Pneumology and Allergology, Neonatology and Intensive Care, Medical Campus of University Oldenburg, 26133, Oldenburg, Germany
| | - Holger Röblitz
- Department of Pediatrics and Adolescent Medicine, Sana Klinikum Lichtenberg, 10365, Berlin, Germany
| | - Songül Yürek
- Department of Pediatric Pneumology and Immunology, Charité University Medical Center, 13353, Berlin, Germany
| | - Sebastian Tschirner
- Department of Pediatric Pneumology and Immunology, Charité University Medical Center, 13353, Berlin, Germany
| | - Xiumei Hong
- Department of Population, Family and Reproductive Health, Center on the Early Life Origins of Disease, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Xiaobin Wang
- Department of Population, Family and Reproductive Health, Center on the Early Life Origins of Disease, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Georg Homuth
- Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine and Ernst-Moritz-Arndt-University Greifswald, 17487, Greifswald, Germany
| | - Carsten O Schmidt
- Institute for Community Medicine, Study of Health in Pomerania/KEF, University Medicine Greifswald, 17475, Greifswald, Germany
| | - Markus M Nöthen
- Institute of Human Genetics and Department of Genomics, Life & Brain Center, University of Bonn, 53127, Bonn, Germany
| | - Norbert Hübner
- Max-Delbrück-Center (MDC) for Molecular Medicine, 13125, Berlin, Germany
| | - Bodo Niggemann
- Department of Pediatric Pneumology and Immunology, Charité University Medical Center, 13353, Berlin, Germany
| | - Kirsten Beyer
- Department of Pediatric Pneumology and Immunology, Charité University Medical Center, 13353, Berlin, Germany
| | - Young-Ae Lee
- Max-Delbrück-Center (MDC) for Molecular Medicine, 13125, Berlin, Germany. .,Clinic for Pediatric Allergy, Experimental and Clinical Research Center, Charité University Medical Center, 13125, Berlin, Germany.
| |
Collapse
|
18
|
Miaskowski C, Conley YP, Mastick J, Paul SM, Cooper BA, Levine JD, Knisely M, Kober KM. Cytokine Gene Polymorphisms Associated With Symptom Clusters in Oncology Patients Undergoing Radiation Therapy. J Pain Symptom Manage 2017; 54:305-316.e3. [PMID: 28797847 PMCID: PMC5610097 DOI: 10.1016/j.jpainsymman.2017.05.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 04/07/2017] [Accepted: 05/09/2017] [Indexed: 01/08/2023]
Abstract
CONTEXT Most of the reviews on the biological basis for symptom clusters suggest that inflammatory processes are involved in the development and maintenance of the symptom clusters. However, no studies have evaluated for associations between genetic polymorphisms and common symptom clusters (e.g., mood disturbance, sickness behavior). OBJECTIVES Examine the associations between cytokine gene polymorphisms and the severity of three distinct symptom clusters (i.e., mood-cognitive, sickness-behavior, treatment-related) in a sample of patients with breast and prostate cancer (n = 157) at the completion of radiation therapy. METHODS Symptom severity was assessed using the Memorial Symptom Assessment Scale. Symptom clusters were created using exploratory factor analysis. The associations between cytokine gene polymorphisms and the symptom cluster severity scores were evaluated using regression analyses. RESULTS Polymorphisms in C-X-C motif chemokine ligand 8 (CXCL8), interleukin (IL13), and nuclear factor kappa beta 2 (NFKB2) were associated with severity scores for the mood-cognitive symptom cluster. In addition to interferon gamma (IFNG1), the same polymorphism in NFKB2 (i.e., rs1056890) that was associated with the mood-cognitive symptom cluster score was associated with the sickness-behavior symptom cluster. Polymorphisms in interleukin 1 receptor 1 (IL1R1), IL6, and NFKB1 were associated with severity factor scores for the treatment-related symptom cluster. CONCLUSION Our findings support the hypotheses that symptoms that cluster together have a common underlying mechanism and the most common symptom clusters in oncology patients are associated polymorphisms in genes involved in a variety of inflammatory processes.
Collapse
Affiliation(s)
| | - Yvette P Conley
- School of Nursing, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Judy Mastick
- School of Nursing, University of California, San Francisco, California, USA
| | - Steven M Paul
- School of Nursing, University of California, San Francisco, California, USA
| | - Bruce A Cooper
- School of Nursing, University of California, San Francisco, California, USA
| | - Jon D Levine
- School of Medicine, University of California, San Francisco, California, USA
| | - Mitchell Knisely
- School of Nursing, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Kord M Kober
- School of Nursing, University of California, San Francisco, California, USA
| |
Collapse
|
19
|
Hirota T, Nakayama T, Sato S, Yanagida N, Matsui T, Sugiura S, Takaoka Y, Hizawa N, Fujieda S, Miyatake A, Sasaki T, Amagai M, Doi S, Ito K, Ebisawa M, Tamari M. Association study of childhood food allergy with genome-wide association studies-discovered loci of atopic dermatitis and eosinophilic esophagitis. J Allergy Clin Immunol 2017. [PMID: 28629743 DOI: 10.1016/j.jaci.2017.05.034] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Tomomitsu Hirota
- Laboratory for Respiratory and Allergic Diseases, Center for Integrative Medical Sciences, Institute of Physical and Chemical Research (RIKEN), Kanagawa, Japan
| | - Tsuguhisa Nakayama
- Laboratory for Respiratory and Allergic Diseases, Center for Integrative Medical Sciences, Institute of Physical and Chemical Research (RIKEN), Kanagawa, Japan
| | - Sakura Sato
- National Clinical Research Center, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan
| | - Noriyuki Yanagida
- National Clinical Research Center, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan
| | - Teruaki Matsui
- Department of Allergy, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Shiro Sugiura
- Department of Allergy, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Yuri Takaoka
- Osaka Prefectural Medical Center for Respiratory and Allergic Diseases, Osaka, Japan
| | - Nobuyuki Hizawa
- Division of Respiratory Medicine, Institute of Clinical Medicine, University of Tsukuba, Ibaraki, Japan
| | - Shigeharu Fujieda
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, University of Fukui, Fukui, Japan
| | | | - Takashi Sasaki
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Masayuki Amagai
- Department of Dermatology, Keio University School of Medicine, Tokyo, Japan
| | - Satoru Doi
- Osaka Prefectural Medical Center for Respiratory and Allergic Diseases, Osaka, Japan
| | - Komei Ito
- Department of Allergy, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Motohiro Ebisawa
- National Clinical Research Center, National Hospital Organization, Sagamihara National Hospital, Kanagawa, Japan
| | - Mayumi Tamari
- Laboratory for Respiratory and Allergic Diseases, Center for Integrative Medical Sciences, Institute of Physical and Chemical Research (RIKEN), Kanagawa, Japan; Research Center for Medical Science, The Jikei University School of Medicine, Tokyo, Japan.
| |
Collapse
|
20
|
Aguilar D, Pinart M, Koppelman GH, Saeys Y, Nawijn MC, Postma DS, Akdis M, Auffray C, Ballereau S, Benet M, García-Aymerich J, González JR, Guerra S, Keil T, Kogevinas M, Lambrecht B, Lemonnier N, Melen E, Sunyer J, Valenta R, Valverde S, Wickman M, Bousquet J, Oliva B, Antó JM. Computational analysis of multimorbidity between asthma, eczema and rhinitis. PLoS One 2017; 12:e0179125. [PMID: 28598986 PMCID: PMC5466323 DOI: 10.1371/journal.pone.0179125] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 05/24/2017] [Indexed: 12/11/2022] Open
Abstract
Background The mechanisms explaining the co-existence of asthma, eczema and rhinitis (allergic multimorbidity) are largely unknown. We investigated the mechanisms underlying multimorbidity between three main allergic diseases at a molecular level by identifying the proteins and cellular processes that are common to them. Methods An in silico study based on computational analysis of the topology of the protein interaction network was performed in order to characterize the molecular mechanisms of multimorbidity of asthma, eczema and rhinitis. As a first step, proteins associated to either disease were identified using data mining approaches, and their overlap was calculated. Secondly, a functional interaction network was built, allowing to identify cellular pathways involved in allergic multimorbidity. Finally, a network-based algorithm generated a ranked list of newly predicted multimorbidity-associated proteins. Results Asthma, eczema and rhinitis shared a larger number of associated proteins than expected by chance, and their associated proteins exhibited a significant degree of interconnectedness in the interaction network. There were 15 pathways involved in the multimorbidity of asthma, eczema and rhinitis, including IL4 signaling and GATA3-related pathways. A number of proteins potentially associated to these multimorbidity processes were also obtained. Conclusions These results strongly support the existence of an allergic multimorbidity cluster between asthma, eczema and rhinitis, and suggest that type 2 signaling pathways represent a relevant multimorbidity mechanism of allergic diseases. Furthermore, we identified new candidates contributing to multimorbidity that may assist in identifying new targets for multimorbid allergic diseases.
Collapse
Affiliation(s)
- Daniel Aguilar
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- Structural Bioinformatics Group, Departament de Ciencies Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- * E-mail:
| | - Mariona Pinart
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- Institut Municipal d'Investigació Mèdica (IMIM), Barcelona, Spain
| | - Gerard H. Koppelman
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Beatrix Children's Hospital, Department of Pediatric Pulmonology and Pediatric Allergology, Groningen, The Netherlands
| | - Yvan Saeys
- Inflammation Research Center, VIB, Ghent, Belgium
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Martijn C. Nawijn
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
- University of Groningen, Laboratory of Allergology and Pulmonary Diseases, Department of Pathology and Medical Biology, University Medical Center Groningen, Groningen, The Netherlands
| | - Dirkje S. Postma
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
- University of Groningen, Laboratory of Allergology and Pulmonary Diseases, Department of Pathology and Medical Biology, University Medical Center Groningen, Groningen, The Netherlands
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), Davos, Switzerland
- Christine Kühne–Center for Allergy Research and Education, Davos, Switzerland
| | - Charles Auffray
- European Institute for Systems Biology and Medicine (EISBM), CNRS, Lyon, France
| | - Stéphane Ballereau
- European Institute for Systems Biology and Medicine (EISBM), CNRS, Lyon, France
| | - Marta Benet
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
| | - Judith García-Aymerich
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
| | - Juan Ramón González
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
| | - Stefano Guerra
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- Arizona Respiratory Center, Tucson, Arizona, United States of America
| | - Thomas Keil
- Institute of Social Medicine, Epidemiology and Health Economics, Charité University Medical Centre, Berlin, Germany
| | - Manolis Kogevinas
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- Institut Municipal d'Investigació Mèdica (IMIM), Barcelona, Spain
- National School of Public Health, Athens, Greece
| | - Bart Lambrecht
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, the Netherlands
| | - Nathanael Lemonnier
- European Institute for Systems Biology and Medicine (EISBM), CNRS, Lyon, France
| | - Erik Melen
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Sach's Children's Hospital, Stockholm, Sweden
| | - Jordi Sunyer
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- Structural Bioinformatics Group, Departament de Ciencies Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- Institut Municipal d'Investigació Mèdica (IMIM), Barcelona, Spain
| | - Rudolf Valenta
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Sergi Valverde
- ICREA-Complex Systems Lab, Universitat Pompeu Fabra, Barcelona, Spain
- Institut de Biologia Evolutiva, CSIC-UPF, Barcelona, Spain
| | - Magnus Wickman
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
- Sach's Children's Hospital, Stockholm, Sweden
| | - Jean Bousquet
- Hopital Arnaud de Villeneuve University Hospital and Inserm, Montpellier, France
| | - Baldo Oliva
- Structural Bioinformatics Group, Departament de Ciencies Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
| | - Josep M. Antó
- ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
- CIBER Epidemiologia y Salud Pública (CIBERESP), Barcelona, Spain
- Institut Municipal d'Investigació Mèdica (IMIM), Barcelona, Spain
| |
Collapse
|
21
|
Barber MF, Lee EM, Griffin H, Elde NC. Rapid Evolution of Primate Type 2 Immune Response Factors Linked to Asthma Susceptibility. Genome Biol Evol 2017; 9:1757-1765. [PMID: 28854632 PMCID: PMC5569703 DOI: 10.1093/gbe/evx120] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/03/2017] [Indexed: 02/06/2023] Open
Abstract
Host immunity pathways evolve rapidly in response to antagonism by pathogens. Microbial infections can also trigger excessive inflammation that contributes to diverse autoimmune disorders including asthma, lupus, diabetes, and arthritis. Definitive links between immune system evolution and human autoimmune disease remain unclear. Here we provide evidence that several components of the type 2 immune response pathway have been subject to recurrent positive selection in the primate lineage. Notably, substitutions in the central immune regulator IL13 correspond to a polymorphism linked to asthma susceptibility in humans. We also find evidence of accelerated amino acid substitutions as well as gene gain and loss events among eosinophil granule proteins, which act as toxic antimicrobial effectors that promote asthma pathology by damaging airway tissues. These results support the hypothesis that evolutionary conflicts with pathogens promote tradeoffs for increasingly robust immune responses during animal evolution. Our findings are also consistent with the view that natural selection has contributed to the spread of autoimmune disease alleles in humans.
Collapse
Affiliation(s)
| | - Elliott M. Lee
- Department of Human Genetics, University of Utah School of Medicine
| | - Hayden Griffin
- Department of Human Genetics, University of Utah School of Medicine
| | - Nels C. Elde
- Department of Human Genetics, University of Utah School of Medicine
| |
Collapse
|
22
|
Ashley SE, Tan HTT, Peters R, Allen KJ, Vuillermin P, Dharmage SC, Tang MLK, Koplin J, Lowe A, Ponsonby AL, Molloy J, Matheson MC, Saffery R, Ellis JA, Martino D. Genetic variation at the Th2 immune gene IL13 is associated with IgE-mediated paediatric food allergy. Clin Exp Allergy 2017; 47:1032-1037. [PMID: 28544327 DOI: 10.1111/cea.12942] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 01/20/2017] [Accepted: 03/01/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Food allergies pose a considerable world-wide public health burden with incidence as high as one in ten in 12-month-old infants. Few food allergy genetic risk variants have yet been identified. The Th2 immune gene IL13 is a highly plausible genetic candidate as it is central to the initiation of IgE class switching in B cells. OBJECTIVE Here, we sought to investigate whether genetic polymorphisms at IL13 are associated with the development of challenge-proven IgE-mediated food allergy. METHOD We genotyped nine IL13 "tag" single nucleotide polymorphisms (tag SNPs) in 367 challenge-proven food allergic cases, 199 food-sensitized tolerant cases and 156 non-food allergic controls from the HealthNuts study. 12-month-old infants were phenotyped using open oral food challenges. SNPs were tested using Cochran-Mantel-Haenszel test adjusted for ancestry strata. A replication study was conducted in an independent, co-located sample of four paediatric cohorts consisting of 203 food allergic cases and 330 non-food allergic controls. Replication sample phenotypes were defined by clinical history of reactivity, 95% PPV or challenge, and IL13 genotyping was performed. RESULTS IL13 rs1295686 was associated with challenge-proven food allergy in the discovery sample (P=.003; OR=1.75; CI=1.20-2.53). This association was also detected in the replication sample (P=.03, OR=1.37, CI=1.03-1.82) and further supported by a meta-analysis (P=.0006, OR=1.50). However, we cannot rule out an association with food sensitization. Carriage of the rs1295686 variant A allele was also associated with elevated total plasma IgE. CONCLUSIONS AND CLINICAL RELAVANCE We show for the first time, in two independent cohorts, that IL13 polymorphism rs1295686 (in complete linkage disequilibrium with functional variant rs20541) is associated with challenge-proven food allergy.
Collapse
Affiliation(s)
- S E Ashley
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,The Hudson Institute, Monash Translational Health Precinct (MTHP), Monash University, Clayton, Australia
| | - H-T T Tan
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - R Peters
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - K J Allen
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia.,Department of Allergy and Immunology, Royal Children's Hospital, Parkville, Australia.,Institute of Inflammation and Repair, University of Manchester, UK
| | - P Vuillermin
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Barwon Health, Child Health Research Unit, Geelong, Australia.,Deakin University, Waurn Ponds, Australia
| | - S C Dharmage
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Centre for Epidemiology and Biostatistics, School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - M L K Tang
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia.,Department of Allergy and Immunology, Royal Children's Hospital, Parkville, Australia
| | - J Koplin
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Centre for Epidemiology and Biostatistics, School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - A Lowe
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Centre for Epidemiology and Biostatistics, School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - A-L Ponsonby
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - J Molloy
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Barwon Health, Child Health Research Unit, Geelong, Australia.,Deakin University, Waurn Ponds, Australia
| | - M C Matheson
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - R Saffery
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,The Hudson Institute, Monash Translational Health Precinct (MTHP), Monash University, Clayton, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - J A Ellis
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia.,Centre for Social and Early Emotional Development, Faculty of Health, Deakin University, Australia
| | - D Martino
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia.,University of Western Australia, Department of Paediatrics, Australia
| | | |
Collapse
|
23
|
Smolkova B, Tulinska J, Palkovicova Murinova L, Buocikova V, Liskova A, Rausova K, Kuricova M, Patayova H, Sustrova M, Neubauerova Svorcova E, Ilavska S, Szabova M, Nemessanyi T, Jahnova E, Dusinska M, Ciznar P, Fuortes L. Impact of interleukin 13 (IL13) genetic polymorphism Arg130Gln on total serum immunoglobulin (IgE) levels and interferon (IFN)-γ gene expression. Clin Exp Immunol 2017; 188:45-52. [PMID: 28054352 DOI: 10.1111/cei.12923] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2016] [Indexed: 12/01/2022] Open
Abstract
This cross-sectional study was designed to investigate the extent of genetic susceptibility by targeting variants in interleukin (IL)-4/IL-13 signalling pathways leading to atopic disease in early childhood. We evaluated involvement of five single nucleotide polymorphisms IL4 C-590T, IL13 C-1055T, IL13 Arg130Gln, IL4RA Ile50Val and IL4RA Gln576Arg, in the control of serum total and antigen-specific immunoglobulin (Ig)E levels. Furthermore, we analysed their association with changes in gene expression of five cytokines having key roles in inflammatory and anti-inflammatory immune response [IL-4, IL-13, interferon (IFN)-γ, IL-8 and IL-10]. Total and antigen-specific IgE levels in serum and gene expression of selected cytokines in peripheral blood were measured in 386 children aged 1-8 years. TaqMan allelic discrimination, amplification refractory mutation system-polymerase chain reaction (ARMS-PCR) and restriction fragment length polymorphisms (RFLP) methods validated by sequencing were used for genotyping. All genotypes for children with total and antigen-specific IgE levels in the normal range were in Hardy-Weinberg equilibrium. Gene expression analyses were carried out using TaqMan gene expression assays. We found elevated total IgE levels in carriers of IL13 Arg130Gln variant allele [odds ratio (OR) = 1·84; 95% confidence interval (CI) = 1·16-2·93]. This effect was more apparent for boys (OR = 2·31; 95% CI = 1·25-4·28). However, no significant association was observed for the other four variants examined. We found up-regulation of IFN-γ in children with elevated serum total IgE levels carrying the Arg130 allele (P = 0·005). No differences were found for IL4, IL8 or IL10, while IL13 gene expression was under the detection limit. IL13 Arg130Gln genotypes can play a role in genetic susceptibility to allergy via regulation of serum total IgE levels and affecting IFN-γ gene expression.
Collapse
Affiliation(s)
- B Smolkova
- Cancer Research Institute, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia.,Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - J Tulinska
- Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | | | - V Buocikova
- Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - A Liskova
- Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - K Rausova
- Faculty of Public Health, Slovak Medical University, Bratislava, Slovakia
| | - M Kuricova
- Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - H Patayova
- Faculty of Public Health, Slovak Medical University, Bratislava, Slovakia
| | - M Sustrova
- Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | | | - S Ilavska
- Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - M Szabova
- Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - T Nemessanyi
- Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - E Jahnova
- Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - M Dusinska
- Health Effects Laboratory, Department of Environmental Chemistry, NILU-Norwegian Institute for Air Research, Kjeller, Norway
| | - P Ciznar
- Faculty of Medicine, 1st Pediatric Department, Comenius University, Bratislava, Slovakia
| | - L Fuortes
- College of Public Health, University of Iowa, Iowa City, IA, USA
| |
Collapse
|
24
|
Liang Y, Chang C, Lu Q. The Genetics and Epigenetics of Atopic Dermatitis-Filaggrin and Other Polymorphisms. Clin Rev Allergy Immunol 2017; 51:315-328. [PMID: 26385242 DOI: 10.1007/s12016-015-8508-5] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disease caused by a combination of genetic and environmental factors. Genetic evidences depict a complex network comprising by epidermal barrier dysfunctions and dysregulation of innate and adaptive immunity in the pathogenesis of AD. Mutations in the human filaggrin gene (FLG) are the most significant and well-replicated genetic mutation associated with AD, and other mutations associated with epidermal barriers such as SPINK5, FLG-2, SPRR3, and CLDN1 have all been linked to AD. Gene variants may also contribute to the abnormal innate and adaptive responses found in AD, including mutations in PRRs and AMPs, TSLP and TSLPR, IL-1 family cytokines and receptors genes, vitamin D pathway genes, FCER1A, and Th2 and other cytokines genes. GWAS and Immunochip analysis have identified a total of 19 susceptibility loci for AD. Candidate genes at these susceptibility loci identified by GWAS and Immunochip analysis also suggest roles for epidermal barrier functions, innate and adaptive immunity, interleukin-1 family signaling, regulatory T cells, the vitamin D pathway, and the nerve growth factor pathway in the pathogenesis of AD. Increasing evidences show the modern lifestyle (i.e., the hygiene hypothesis, Western diet) and other environmental factors such as pollution and environmental tobacco smoke (ETS) lead to the increasing prevalence of AD with the development of industrialization. Epigenetic alterations in response to these environmental factors, including DNA methylation and microRNA related to immune system and skin barriers, have been found to contribute to the pathogenesis of AD. Genetic variants and epigenetic alteration might be the key tools for the molecular taxonomy of AD and provide the background for the personalized management.
Collapse
Affiliation(s)
- Yunsheng Liang
- Hunan Key Laboratory of Medical Epigenomics & Department of Dermatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Rd, Changsha, Hunan, 410011, China
| | - Christopher Chang
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis, Davis, CA, 95616, USA
| | - Qianjin Lu
- Hunan Key Laboratory of Medical Epigenomics & Department of Dermatology, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Rd, Changsha, Hunan, 410011, China.
| |
Collapse
|
25
|
Popovic B, Breed J, Rees DG, Gardener MJ, Vinall LMK, Kemp B, Spooner J, Keen J, Minter R, Uddin F, Colice G, Wilkinson T, Vaughan T, May RD. Structural Characterisation Reveals Mechanism of IL-13-Neutralising Monoclonal Antibody Tralokinumab as Inhibition of Binding to IL-13Rα1 and IL-13Rα2. J Mol Biol 2016; 429:208-219. [PMID: 27956146 DOI: 10.1016/j.jmb.2016.12.005] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/02/2016] [Accepted: 12/05/2016] [Indexed: 12/12/2022]
Abstract
Interleukin (IL)-13 is a pleiotropic T helper type 2 cytokine frequently associated with asthma and atopic dermatitis. IL-13-mediated signalling is initiated by binding to IL-13Rα1, which then recruits IL-4Rα to form a heterodimeric receptor complex. IL-13 also binds to IL-13Rα2, considered as either a decoy or a key mediator of fibrosis. IL-13-neutralising antibodies act by preventing IL-13 binding to IL-13Rα1, IL-4Rα and/or IL-13Rα2. Tralokinumab (CAT-354) is an IL-13-neutralising human IgG4 monoclonal antibody that has shown clinical benefit in patients with asthma. To decipher how tralokinumab inhibits the effects of IL-13, we determined the structure of tralokinumab Fab in complex with human IL-13 to 2 Å resolution. The structure analysis reveals that tralokinumab prevents IL-13 from binding to both IL-13Rα1 and IL-13Rα2. This is supported by biochemical ligand-receptor interaction assay data. The tralokinumab epitope is mainly composed of residues in helices D and A of IL-13. It is mostly light chain complementarity-determining regions that are driving paratope interactions; the variable light complementarity-determining region 2 plays a key role by providing residue contacts for a network of hydrogen bonds and a salt bridge in the core of binding. The key residues within the paratope contributing to binding were identified as Asp50, Asp51, Ser30 and Lys31. This study demonstrates that tralokinumab prevents the IL-13 pharmacodynamic effect by binding to IL-13 helices A and D, thus preventing IL-13 from interacting with IL-13Rα1 and IL-13Rα2.
Collapse
Affiliation(s)
- B Popovic
- Department of Antibody Discovery and Protein Engineering, MedImmune Ltd., Granta Park, Cambridge CB21 6GH, UK.
| | - J Breed
- Discovery Sciences, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Cambridge Science Park, Milton Road, Cambridge CB4 0WG, UK
| | - D G Rees
- Department of Antibody Discovery and Protein Engineering, MedImmune Ltd., Granta Park, Cambridge CB21 6GH, UK
| | - M J Gardener
- Department of Antibody Discovery and Protein Engineering, MedImmune Ltd., Granta Park, Cambridge CB21 6GH, UK
| | - L M K Vinall
- Department of Antibody Discovery and Protein Engineering, MedImmune Ltd., Granta Park, Cambridge CB21 6GH, UK
| | - B Kemp
- Department of Antibody Discovery and Protein Engineering, MedImmune Ltd., Granta Park, Cambridge CB21 6GH, UK
| | - J Spooner
- Department of Antibody Discovery and Protein Engineering, MedImmune Ltd., Granta Park, Cambridge CB21 6GH, UK
| | - J Keen
- Department of Antibody Discovery and Protein Engineering, MedImmune Ltd., Granta Park, Cambridge CB21 6GH, UK
| | - R Minter
- Department of Antibody Discovery and Protein Engineering, MedImmune Ltd., Granta Park, Cambridge CB21 6GH, UK
| | - F Uddin
- Department of Biopharmaceutical Development, MedImmune Ltd., Granta Park, Cambridge CB21 6GH, UK
| | - G Colice
- Inflammation, Neuroscience, Respiratory, Global Medicines Development, AstraZeneca, One MedImmune Way, Gaithersburg, MD 20878, USA
| | - T Wilkinson
- Department of Antibody Discovery and Protein Engineering, MedImmune Ltd., Granta Park, Cambridge CB21 6GH, UK
| | - T Vaughan
- Department of Antibody Discovery and Protein Engineering, MedImmune Ltd., Granta Park, Cambridge CB21 6GH, UK
| | - R D May
- Department of Respiratory, Inflammation and Autoimmunity, MedImmune Ltd., Granta Park, Cambridge CB21 6GH, UK
| |
Collapse
|
26
|
May RD, Fung M. Strategies targeting the IL-4/IL-13 axes in disease. Cytokine 2016; 75:89-116. [PMID: 26255210 DOI: 10.1016/j.cyto.2015.05.018] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 05/15/2015] [Indexed: 02/07/2023]
Abstract
IL-4 and IL-13 are pleiotropic Th2 cytokines produced by a wide variety of different cell types and responsible for a broad range of biology and functions. Physiologically, Th2 cytokines are known to mediate host defense against parasites but they can also trigger disease if their activities are dysregulated. In this review we discuss the rationale for targeting the IL-4/IL-13 axes in asthma, atopic dermatitis, allergic rhinitis, COPD, cancer, inflammatory bowel disease, autoimmune disease and fibrotic disease as well as evaluating the associated clinical data derived from blocking IL-4, IL-13 or IL-4 and IL-13 together.
Collapse
|
27
|
Hua L, Zuo XB, Bao YX, Liu QH, Li JY, Lv J, Fang DZ, Lin Q, Bao J, Ji RX. Four-locus gene interaction between IL13, IL4, FCER1B, and ADRB2 for asthma in Chinese Han children. Pediatr Pulmonol 2016; 51:364-71. [PMID: 26613553 DOI: 10.1002/ppul.23322] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 08/13/2015] [Accepted: 09/14/2015] [Indexed: 11/08/2022]
Abstract
RATIONALE IL13, IL4, IL4RA, FCER1B, and ADRB2 are important inflammatory genes associated with immunoglobulin E levels. This study attempts to determine whether there are gene-gene interactions in the five genes among asthmatic children of Chinese Han nationality. METHODS Nine single-nucleotide polymorphisms (SNPs) in the five genes were genotyped in 1,000 asthmatic children and 1,000 healthy controls using TaqMan real-time quantitative polymerase chain reaction. Multifactor-dimensionality reduction method was applied for the analysis. RESULTS A four-way gene-gene interaction model consisting of IL13 rs20541, IL4 rs2243250, ADRB2 rs1042713, and FCER1B rs569108 was chosen as the optimal one for determining asthma susceptibility (testing balanced accuracy = 0.6089, cross-validation consistency = 10/10, P = 6.98E-05). Each of the four SNPs was identified to have an independent association with childhood asthma (G allele of rs20541, odds ratio (OR) = 1.24, P = 1.23E-03; T allele of rs2243250, OR = 1.25, P = 3.81E-03; A allele of rs1042713, OR = 1.29, P = 6.75E-05; G allele of rs569108, OR = 1.27, P = 3.86E-03). Individuals homozygous for the risk alleles at all the four loci (rs20541 GG, rs2243250 TT, rs1042713 AA, and rs569108 GG) had a significantly higher risk of asthma compared with those without any risk homozygotes (OR = 13.55, P = 4.28E-03), and also greater than those with less than four risk homozygotes (OR = 10.09, P = 6.51E-03). CONCLUSIONS Our results suggest that IL13 rs20541, IL4 rs2243250, ADRB2 rs1042713, and FCER1B rs569108, four SNPs with significant sole effect on asthma, interact to confer a higher risk for the disease in Chinese Han children.
Collapse
Affiliation(s)
- Li Hua
- Department of Pediatric Pulmonology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xian-Bo Zuo
- Key Laboratory of Dermatology, Anhui Medical University, Ministry of Education, Hefei, Anhui, China
| | - Yi-Xiao Bao
- Department of Pediatric Pulmonology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Quan-Hua Liu
- Department of Pediatric Pulmonology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing-Yang Li
- Department of Pediatric Pulmonology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jie Lv
- Department of Pediatric Pulmonology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ding-Zhu Fang
- Department of Pediatric Pulmonology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qian Lin
- Department of Pediatric Pulmonology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Bao
- Department of Pediatric Pulmonology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruo-Xu Ji
- Department of Pediatric Pulmonology, Xin Hua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| |
Collapse
|
28
|
Manni ML, Mandalapu S, McHugh KJ, Elloso MM, Dudas PL, Alcorn JF. Molecular Mechanisms of Airway Hyperresponsiveness in a Murine Model of Steroid-Resistant Airway Inflammation. THE JOURNAL OF IMMUNOLOGY 2016; 196:963-77. [PMID: 26729801 DOI: 10.4049/jimmunol.1501531] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 11/17/2015] [Indexed: 11/19/2022]
Abstract
IL-13 and IL-17A, produced mainly by Th2 and Th17 cells, respectively, have an influential role in asthma pathogenesis. We examined the role of IL-13 and IL-17A in mediating airway hyperresponsiveness (AHR), lung inflammation, and mucus metaplasia in a dual Th2/Th17 model of asthma. IL-13 and/or IL-17A were neutralized using mAbs. Th2/Th17 adoptive transfer induced a mixed asthma phenotype characterized by elevated eosinophilia and neutrophilia, tissue inflammation, mucus metaplasia, and AHR that were partially reversible with steroid treatment. Pulmonary inflammation and quasi-static lung compliance were largely unaffected by neutralization of IL-13 and/or IL-17A. However, neutralization of IL-13 alone or in combination with IL-17A significantly attenuated AHR and mucus metaplasia. Further, STAT6 activation was attenuated following IL-13 and IL-13/IL-17A Ab treatment. We next assessed the role of STAT6 in Th2/Th17-mediated allergic airway disease using STAT6(-/-) mice. STAT6(-/-) mice adoptively transferred with Th2/Th17 cells had decreased AHR compared with controls. These data suggest that IL-13 drives AHR and mucus metaplasia in a STAT6-dependent manner, without directly contributing to airway or tissue inflammation. IL-17A independently contributes to AHR, but it only partially mediates inflammation and mucus metaplasia in a mixed Th2/Th17 model of steroid-resistant asthma.
Collapse
Affiliation(s)
- Michelle L Manni
- Department of Pediatrics, Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, PA 15224; and
| | - Sivanarayana Mandalapu
- Department of Pediatrics, Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, PA 15224; and
| | - Kevin J McHugh
- Department of Pediatrics, Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, PA 15224; and
| | - M Merle Elloso
- Janssen Research & Development, LLC, Spring House, PA 19477
| | - Paul L Dudas
- Janssen Research & Development, LLC, Spring House, PA 19477
| | - John F Alcorn
- Department of Pediatrics, Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, PA 15224; and
| |
Collapse
|
29
|
Abstract
BACKGROUND Bronchial asthma is one of the most common chronic diseases in childhood, with a current prevalence of 6% to 9%, but a prevalence that is increasing at an alarming rate. Asthma is a complex genetic disorder with strong environmental influence. It imposes a growing burden on our society in terms of morbidity, quality of life, and healthcare costs. Despite large-scale efforts, only a few asthma genes have been confirmed, suggesting that the genetic underpinning of asthma is highly complex. METHODS A review of the literature was performed regarding atopic and nonatopic asthma risk factors, including environmental risk factors and genetic studies in adults and children. RESULTS Several environmental risk factors have been identified to increase the risk of developing asthma such as exposure to air pollution and tobaccos smoke as well as occupational risk factors. In addition atopy, stress, and obesity all can increases the risk for asthma in genetically susceptible persons. CONCLUSION Asthma represents a dysfunctional interaction with our genes and the environment to which they are exposed, especially in fetal and early infant life. The increasing prevalence of asthma in all age groups indicate that our living environment and immunity are in imbalance with each other reacting with airway inflammation to the environmental exposures and often non-harmful proteins, such as allergens causing the current "asthma and allergy epidemic." Because of the close relationship between asthma and chronic rhinosinusitis, it is important that otolaryngologists have a good understanding of asthma, the etiologic factors associated with disease, and its evaluation and management.
Collapse
Affiliation(s)
- Elina Toskala
- Department of Otorhinolaryngology–Head and Neck SurgeryTemple UniversityPhiladelphiaPA
| | - David W. Kennedy
- Department of Otorhinolaryngology–Head and Neck SurgeryPerelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPA
| |
Collapse
|
30
|
Belopolskaya OB, Smelaya TV, Moroz VV, Golubev AM, Salnikova LE. Clinical associations of host genetic variations in the genes of cytokines in critically ill patients. Clin Exp Immunol 2015; 180:531-41. [PMID: 25619315 DOI: 10.1111/cei.12592] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/16/2015] [Indexed: 12/14/2022] Open
Abstract
Host genetic variations may influence a changing profile of biochemical markers and outcome in patients with trauma/injury. The objective of this study was to assess clinical associations of single nucleotide polymorphisms (SNPs) in the genes of cytokines in critically ill patients. A total of 430 patients were genotyped for SNPs in the genes of pro- (IL1B, IL6, IL8) and anti-inflammatory (IL4, IL10, IL13) cytokines. The main end-points were sepsis, mortality and adult respiratory distress syndrome (ARDS). We evaluated the dynamic levels of bilirubin, blood urea nitrogen, creatine kinase, creatinine and lactate dehydrogenase in five points of measurements (between 1 and 14 days after admission) and correlated them with SNPs. High-producing alleles of proinflammatory cytokines protected patients against sepsis (IL1B -511A and IL8 -251A) and mortality (IL1B -511A). High-producing alleles of anti-inflammatory cytokines IL4 -589T and IL13 431A (144Gln) were less frequent in ARDS patients. The carriers of IL6 -174C/C genotypes were prone to the increased levels of biochemical markers and acute kidney and liver insufficiency. Genotype-dependent differences in the levels of biochemical indicators gradually increased to a maximal value on the 14th day after admission. These findings suggest that genetic variability in pro- and anti-inflammatory cytokines may contribute to different clinical phenotypes in patients at high risk of critical illness.
Collapse
Affiliation(s)
- O B Belopolskaya
- N. I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - T V Smelaya
- V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Medical Sciences
| | - V V Moroz
- V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Medical Sciences
| | - A M Golubev
- V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Medical Sciences
| | - L E Salnikova
- N. I. Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia.,V. A. Negovsky Research Institute of General Reanimatology, Russian Academy of Medical Sciences
| |
Collapse
|
31
|
The genome as pharmacopeia: Association of genetic dose with phenotypic response. Biochem Pharmacol 2015; 94:229-40. [DOI: 10.1016/j.bcp.2015.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 02/12/2015] [Accepted: 02/12/2015] [Indexed: 11/21/2022]
|
32
|
Deng Y, Xie M, Xie L, Wang J, Li T, He Y, Li R, Li S, Qin X. Association between polymorphism of the interleukin-13 gene and susceptibility to hepatocellular carcinoma in the Chinese population. PLoS One 2015; 10:e0116682. [PMID: 25658755 PMCID: PMC4319784 DOI: 10.1371/journal.pone.0116682] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 12/09/2014] [Indexed: 02/08/2023] Open
Abstract
Objective Interleukin-13 (IL-13) is a potent pleiotropic cytokine that is produced by activated CD4 T cells. This study was undertaken to determine the relationship between two IL-13 gene single nucleotide polymorphisms (SNP rs1800925 and SNP rs20541) and the incidence of hepatitis B virus-related (HBV) hepatocellular carcinoma (HCC). Method Three hundred and ninety-eight HBV-positive individuals (192 HCC and 206 patients with chronic hepatitis) and one hundred and ninety-two healthy participants from the First Affiliated Hospital of Guangxi Medical University were enrolled in this study. Results The results showed no significant differences between the genotype and allele frequencies of the IL-13 gene rs1800925 and rs20541 polymorphisms and chronic hepatitis B risk after adjusting for age, sex, tobacco use, and alcohol intake using binary logistic regression analyses. Regarding the rs20541 SNP, the GA genotype was significantly related to a decreased risk of HCC after adjusting for age, sex, tobacco use, and alcohol intake using binary logistic regression analyses (The odds ratio (OR) = 0.54, 95% confidence intervals (CI) 0.34–0.87). The adjusted OR for the GA and AA genotypes combined was 0.68 (95% CI 0.39–0.90). Conclusion This study indicates that the functional IL-13 rs20541 polymorphism may contribute to the risk of HCC and that the rs20541 polymorphism is a protective factor for HCC.
Collapse
Affiliation(s)
- Yan Deng
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Ming Xie
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Li Xie
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Jian Wang
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Taijie Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Yu He
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Ruolin Li
- Department of Medicine Research, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Shan Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
- * E-mail: (SL); (XQ)
| | - Xue Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
- * E-mail: (SL); (XQ)
| |
Collapse
|
33
|
Kiritsi D, Valari M, Fortugno P, Hausser I, Lykopoulou L, Zambruno G, Fischer J, Bruckner-Tuderman L, Jakob T, Has C. Whole-exome sequencing in patients with ichthyosis reveals modifiers associated with increased IgE levels and allergic sensitizations. J Allergy Clin Immunol 2015; 135:280-3. [DOI: 10.1016/j.jaci.2014.09.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 07/16/2014] [Accepted: 09/22/2014] [Indexed: 02/06/2023]
|
34
|
Martínez-Aguilar NE, Del Río-Navarro BE, Navarro-Olivos E, García-Ortíz H, Orozco L, Jiménez-Morales S. SPINK5 and ADRB2 haplotypes are risk factors for asthma in Mexican pediatric patients. J Asthma 2014; 52:232-9. [PMID: 25233048 DOI: 10.3109/02770903.2014.966913] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Asthma is one of the most common respiratory diseases worldwide, and the complexity of its etiology has been widely documented. Chromosome 5q31-33 is one of the main loci implicated in asthma and asthma-related traits. IL13, CD14 and ADRB2, which are located in this risk locus, are among the genes most strongly associated with asthma susceptibility. OBJECTIVES This study evaluated whether single-nucleotide polymorphisms or haplotypes at 5q31-33 conferred risk for asthma in Mexican-Mestizo pediatric patients. METHODS We performed a case-controlled study including 851 individuals, 421 of them affected with childhood-onset asthma and 430 ethnically matched unaffected subjects. We used the TaqMan Allelic Discrimination Assay to genotype 20 single-nucleotide polymorphisms within IL5, RAD50, IL13, IL4, CD14, SPINK5, HTR4, ADRB2 and IL12B. RESULTS Although no association was detected for any risk allele, three SPINK5 haplotypes (GGCT: p = 6 × 10(-6); AATC: p = 0.0001; AGTT: p = 0.0001) and five ADRB2 haplotypes (AGGACC: p = 0.0014; AGGAAG: p = 0.0002; TGAGAG: p = 0.0001; AGGAAC: p = 0.0002; AAGGAG: p = 0.003) were associated with asthma. Notably, the AGTT SPINK5 haplotype exhibited a male gender-dependent association (p = 7.6 × 10(-5)). CONCLUSION Our results suggest that SPINK5 and ADRB2 haplotypes might play a role in the susceptibility to childhood-onset asthma.
Collapse
Affiliation(s)
- N E Martínez-Aguilar
- Escuela Superior de Medicina, Instituto Politecnico Nacional , México City , Mexico
| | | | | | | | | | | |
Collapse
|
35
|
Dai S, Yin K, Yao X, Zhou L. Inhibition of interleukin-13 gene expression by triptolide in activated T lymphocytes. Respirology 2014; 18:1249-55. [PMID: 23796028 DOI: 10.1111/resp.12145] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 04/01/2013] [Accepted: 04/28/2013] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND OBJECTIVE Triptolide, a type of diterpenoid, is the active compound of Tripterygium wilfordii; it plays roles in anti-inflammatory and immune response regulation. Our objective was to investigate the mechanism of the inhibitory effect of triptolide on interleukin-13 (IL-13) gene expression in activated T lymphocytes. Understanding the molecular mechanism by which triptolide exerts a therapeutic function may be useful in developing a pharmaceutical treatment for asthma. METHODS Peripheral blood mononuclear cells (PBMC) and Hut-78 cells were stimulated with anti-CD3/CD28 with or without co-incubation with triptolide. The alteration of IL-13 messenger RNA (mRNA), expression and protein level were analysed using real-time reverse transcription polymerase chain reaction (PCR) and enzyme-linked immunosorbent assay, respectively. The intracellular distribution profile of transcription factor GATA3 and nuclear factor of activated T cells (NFAT1) were analysed by Western blotting. The binding rates of GATA3 and NFAT1 to the promoter sequence of IL-13 were analysed by chromatin immunoprecipitation (ChIP) PCR. RESULTS In PBMC, the release of IL-13 was dependent on anti-CD3/CD28 stimulation. Its release could be inhibited by triptolide at the concentration of 500 nmol. In Hut-78 cells, IL-13 mRNA and protein expression were increased with anti-CD3/CD28 stimulation and significantly inhibited by incubation with 28 nmol triptolide. This concentration of triptolide also significantly inhibited the nuclear translocation of GATA3 and NFAT1 reducing the binding rate to the IL-13 gene promoter. CONCLUSIONS Triptolide inhibits IL-13 gene transcription and protein expression by inhibiting GATA3 and NFAT1 nuclear translocation and their binding rates to the IL-13 gene promoter region.
Collapse
Affiliation(s)
- Shanlin Dai
- Department of Respiratory Disease, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | | | | | | |
Collapse
|
36
|
Kushekhar K, van den Berg A, Nolte I, Hepkema B, Visser L, Diepstra A. Genetic associations in classical hodgkin lymphoma: a systematic review and insights into susceptibility mechanisms. Cancer Epidemiol Biomarkers Prev 2014; 23:2737-47. [PMID: 25205514 DOI: 10.1158/1055-9965.epi-14-0683] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Both targeted and genome-wide studies have revealed genetic associations for susceptibility, prognosis, and treatment-induced secondary malignancies and toxicities in classical Hodgkin lymphoma (cHL). This review gives a systematic and comprehensive overview of significant associations and places them into a biologic context. The strongest susceptibility polymorphisms have been found for the human leukocyte antigen (HLA) genes. These associations are specific for cHL overall or for subgroups based on tumor cell Epstein-Barr virus (EBV) status. These findings strongly suggest that EBV-specific immune responses influence cHL susceptibility in EBV(+) cHL and that immune responses targeting other tumor-associated antigens are important in EBV(-) cHL. Accordingly, most of the numerous other susceptibility loci map to genes that affect functionality of the immune system, underscoring the crucial role of the immune system in cHL development. The number of association studies on cHL prognosis is limited with one consistent association for the drug-metabolizing UGT1A1 gene. PRDM1 is associated with radiation-induced secondary malignancies and a small number of genes are associated with treatment-related toxicities. In conclusion, most loci showing genetic associations in cHL harbor genes with a potential functional relevance for cHL susceptibility.
Collapse
Affiliation(s)
- Kushi Kushekhar
- Department of Pathology and Medical Biology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Anke van den Berg
- Department of Pathology and Medical Biology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Ilja Nolte
- Department of Epidemiology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Bouke Hepkema
- Department of Laboratory Medicine, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Lydia Visser
- Department of Pathology and Medical Biology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Arjan Diepstra
- Department of Pathology and Medical Biology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands.
| |
Collapse
|
37
|
Fine mapping of eight psoriasis susceptibility loci. Eur J Hum Genet 2014; 23:844-53. [PMID: 25182136 DOI: 10.1038/ejhg.2014.172] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 06/03/2014] [Accepted: 06/06/2014] [Indexed: 01/04/2023] Open
Abstract
Previous studies have identified 41 independent genome-wide significant psoriasis susceptibility loci. After our first psoriasis genome-wide association study, we designed a custom genotyping array to fine-map eight genome-wide significant susceptibility loci known at that time (IL23R, IL13, IL12B, TNIP1, MHC, TNFAIP3, IL23A and RNF114) enabling genotyping of 2269 single-nucleotide polymorphisms (SNPs) in the eight loci for 2699 psoriasis cases and 2107 unaffected controls of European ancestry. We imputed these data using the latest 1000 Genome reference haplotypes, which included both indels and SNPs, to increase the marker density of the eight loci to 49 239 genetic variants. Using stepwise conditional association analysis, we identified nine independent signals distributed across six of the eight loci. In the major histocompatibility complex (MHC) region, we detected three independent signals at rs114255771 (P = 2.94 × 10(-74)), rs6924962 (P = 3.21 × 10(-19)) and rs892666 (P = 1.11 × 10(-10)). Near IL12B we detected two independent signals at rs62377586 (P = 7.42 × 10(-16)) and rs918518 (P = 3.22 × 10(-11)). Only one signal was observed in each of the TNIP1 (rs17728338; P = 4.15 × 10(-13)), IL13 (rs1295685; P = 1.65 × 10(-7)), IL23A (rs61937678; P = 1.82 × 10(-7)) and TNFAIP3 (rs642627; P = 5.90 × 10(-7)) regions. We also imputed variants for eight HLA genes and found that SNP rs114255771 yielded a more significant association than any HLA allele or amino-acid residue. Further analysis revealed that the HLA-C*06-B*57 haplotype tagged by this SNP had a significantly higher odds ratio than other HLA-C*06-bearing haplotypes. The results demonstrate allelic heterogeneity at IL12B and identify a high-risk MHC class I haplotype, consistent with the existence of multiple psoriasis effectors in the MHC.
Collapse
|
38
|
Yang SI, Lee E, Jung YH, Kim HY, Seo JH, Kwon JW, Kim BJ, Kim HB, Lee SY, Jang GC, Kim WK, Shim JY, Kang MJ, Yu HS, Hong SJ. Effect of antibiotic use and mold exposure in infancy on allergic rhinitis in susceptible adolescents. Ann Allergy Asthma Immunol 2014; 113:160-165.e1. [PMID: 24973272 DOI: 10.1016/j.anai.2014.05.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 04/29/2014] [Accepted: 05/21/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND Antibiotic use in infancy induces alteration in intestinal microbiota and is associated with the development of allergic diseases. Mold exposure is also associated with allergic diseases. Genetic susceptibility may interact with specific environmental factors in allergic disease development. OBJECTIVE To investigate independent and combined effects of antibiotic use and mold exposure in infancy on the risk of allergic rhinitis (AR) in adolescents. METHODS Data on AR and environmental factors were collected using the International Study of Asthma and Allergies in Childhood questionnaire from 7,389 adolescents from Seoul, Korea. TaqMan genotyping was performed for interleukin 13 (IL-13) (rs20541) and Toll-like receptor 4 (rs1927911) polymorphisms in 1,395 adolescents. RESULTS Age, parental history of AR, antibiotic use in infancy, and pet ownership during pregnancy or infancy were associated with an increased risk of current AR (diagnosis of AR and symptoms of AR within the preceding 12 months). Having older siblings was a protective effect. The adjusted odds ratio (aOR) for current AR for combined antibiotic use and mold exposure in infancy was 1.45 (95% confidence interval [CI], 1.01-2.09). For each factor separately, aORs were 1.25 (95% CI, 1.04-1.50) and 0.99 (95% CI, 0.75-1.31), respectively. Antibiotic and mold exposure in infancy, GA or AA genotypes of IL-13 (rs20541) (aOR 4.53; 95% CI, 1.66-12.38; P for interaction = .05), and CT+TT genotype of Toll-like receptor 4 (rs1927911) (aOR, 3.20; 95% CI, 1.24-8.26; P for interaction = .18) increased the risk of current AR. CONCLUSION Antibiotic use and mold exposure in infancy have additive effects on the risk of current AR in genetically susceptible adolescents. Gene-environment interactions between IL-13 (rs20541) and antibiotics or mold may play a role in AR.
Collapse
Affiliation(s)
- Song-I Yang
- Department of Pediatrics, Childhood Asthma Atopy Center, Research Center for Standardization of Allergic Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Eun Lee
- Department of Pediatrics, Childhood Asthma Atopy Center, Research Center for Standardization of Allergic Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Young-Ho Jung
- Department of Pediatrics, Childhood Asthma Atopy Center, Research Center for Standardization of Allergic Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyung Young Kim
- Department of Pediatrics, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Ju-Hee Seo
- Department of Pediatrics, Korea Cancer Center Hospital, Seoul, Korea
| | - Ji-Won Kwon
- Department of Pediatrics, Seoul National University Bundang Hospital, Seungnam, Korea
| | - Byoung-Ju Kim
- Department of Pediatrics, Inje University Haeundae Paik Hospital, Busan, Korea
| | - Hyo-Bin Kim
- Department of Pediatrics, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - So-Yeon Lee
- Department of Pediatrics, Hallym Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Gwang Cheon Jang
- Department of Pediatrics, National Health Insurance Corporation Ilsan Hospital, Goyang, Korea
| | - Woo-Kyung Kim
- Department of Pediatrics and the Allergy and Respiratory Research Laboratory, Inje University Seoul Paik Hospital, Seoul, Korea
| | - Jung Yeon Shim
- Department of Pediatrics, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Mi-Jin Kang
- Asan Institute for Life Science, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ho-Sung Yu
- Asan Institute for Life Science, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Soo-Jong Hong
- Department of Pediatrics, Childhood Asthma Atopy Center, Research Center for Standardization of Allergic Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
| |
Collapse
|
39
|
Mathias RA. Introduction to genetics and genomics in asthma: genetics of asthma. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 795:125-55. [PMID: 24162907 DOI: 10.1007/978-1-4614-8603-9_9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
While asthma is a heterogeneous disease, a strong genetic basis has been firmly established. Rather than being a single disease entity, asthma consists of related, overlapping syndromes [Barnes (Proc Am Thor Soc 8:143-148, 2011)] including three general domains: variable airway obstruction, airway hyper-responsiveness, and airway inflammation with a considerable proportion, but not all, of asthma being IgE-mediated further adding to its heterogeneity. This chapter reviews the approaches to the elucidation of genetics of asthma from the early evidence of familial clustering to the current state of knowledge with genome-wide approaches. The conclusion is that research efforts have led to a tremendous repository of genetic determinants of asthma, most of which fall into the above phenotypic domains of the syndrome. We now look to future integrative approaches of genetics, genomics (Chap. 10), and epigenetics (Chap. 11) to better understand the causal mechanism through which, these genetic loci act in manifesting asthma.
Collapse
Affiliation(s)
- Rasika Ann Mathias
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, 5501 Hopkins Bayview Circle, 3B.79, Baltimore, MD, 21224, USA,
| |
Collapse
|
40
|
Shared genetic determinants between eczema and other immune-related diseases. Curr Opin Allergy Clin Immunol 2014; 13:478-86. [PMID: 23945175 DOI: 10.1097/aci.0b013e328364e8f7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
PURPOSE OF REVIEW Eczema and other allergic disorders are complex diseases caused by multiple genetic and environmental factors. Here, we review recent success in the identification of novel susceptibility loci for eczema. RECENT FINDINGS Genome-wide association studies led to marked progress in unraveling the genetic determinants of allergic disorders. In the past 4 years, a total of 14 new eczema susceptibility loci have been identified and nearly all of them were successfully replicated. Seven additional eczema loci were recently identified by alternative strategies utilizing the remarkable overlap in the genetic cause of diverse immune-related traits. Apart from underlining the importance of the skin barrier in eczema, these studies point to specific immunological functions altered in eczema pathogenesis. SUMMARY The new findings demonstrate that common pathways are involved in the development of eczema and other immune-related traits. Moreover, the genetic determinants shared between eczema, asthma, and allergic rhinitis should aid in resolving the molecular mechanisms triggering disease progression along the atopic march. The identification of the underlying genes and causal variants will be the major challenge for upcoming studies.
Collapse
|
41
|
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: 27] [Impact Index Per Article: 2.7] [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.
Collapse
Affiliation(s)
- Brian C Sayers
- 1 Department of Environmental and Molecular Toxicology, North Carolina State University, Raleigh, North Carolina
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
He YF, Hua L, Bao YX, Liu QH, Chu Y, Fang DZ. IL-13 R110Q, a Naturally Occurring IL-13 Polymorphism, Confers Enhanced Functional Activity in Cultured Human Bronchial Smooth Muscle Cells. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2013; 5:377-82. [PMID: 24179684 PMCID: PMC3810544 DOI: 10.4168/aair.2013.5.6.377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 01/07/2013] [Accepted: 01/24/2013] [Indexed: 12/01/2022]
Abstract
Purpose Interleukin (IL)-13, a Th2-type cytokine, plays a pivotal role in the pathogenesis of asthma through its direct effects on airway smooth muscles. A naturally occurring IL-13 polymorphism, R110Q, is strongly associated with increased total serum IgE levels and asthma. In the present study, we aimed to determine whether the IL-13 R110Q variant would display different biochemical properties or altered functions in comparison with wild-type (WT) IL-13 in cultured human bronchial smooth muscle cells (hBSMCs). Methods Culture supernatants and cell proteins were collected from cultured hBSMCs that were treated with 50 ng/mL IL-13 or IL-13 R110Q for 24 hours. Eotaxin released into hBSMC culture medium was determined by ELISA. The expression levels of the high-affinity IgE receptor (FcεRI) α-chain, smooth muscle-specific actin alpha chain (α-SMA), smooth muscle myosin heavy chain (SmMHC), and calreticulin in the cells were measured on Western blots. Results Compared with WT IL-13, treatment with the IL-13 R110Q variant resulted in a significant increase in eotaxin release as well as significant, although modest, increases in the expression levels of α-SMA, SmMHC, calreticulin, and FcεRI α-chain. Conclusions The results of the present study suggenst that the IL-13 R110Q variant may enhance enhanced functional activities in hBSMCs.
Collapse
Affiliation(s)
- Ya-Fang He
- Department of Pediatrics, Xinhua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | | | | | | | | | | |
Collapse
|
43
|
|
44
|
Weidinger S, Willis-Owen SAG, Kamatani Y, Baurecht H, Morar N, Liang L, Edser P, Street T, Rodriguez E, O'Regan GM, Beattie P, Fölster-Holst R, Franke A, Novak N, Fahy CM, Winge MCG, Kabesch M, Illig T, Heath S, Söderhäll C, Melén E, Pershagen G, Kere J, Bradley M, Lieden A, Nordenskjold M, Harper JI, McLean WHI, Brown SJ, Cookson WOC, Lathrop GM, Irvine AD, Moffatt MF. A genome-wide association study of atopic dermatitis identifies loci with overlapping effects on asthma and psoriasis. Hum Mol Genet 2013; 22:4841-56. [PMID: 23886662 PMCID: PMC3820131 DOI: 10.1093/hmg/ddt317] [Citation(s) in RCA: 155] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Atopic dermatitis (AD) is the most common dermatological disease of childhood. Many children with AD have asthma and AD shares regions of genetic linkage with psoriasis, another chronic inflammatory skin disease. We present here a genome-wide association study (GWAS) of childhood-onset AD in 1563 European cases with known asthma status and 4054 European controls. Using Illumina genotyping followed by imputation, we generated 268 034 consensus genotypes and in excess of 2 million single nucleotide polymorphisms (SNPs) for analysis. Association signals were assessed for replication in a second panel of 2286 European cases and 3160 European controls. Four loci achieved genome-wide significance for AD and replicated consistently across all cohorts. These included the epidermal differentiation complex (EDC) on chromosome 1, the genomic region proximal to LRRC32 on chromosome 11, the RAD50/IL13 locus on chromosome 5 and the major histocompatibility complex (MHC) on chromosome 6; reflecting action of classical HLA alleles. We observed variation in the contribution towards co-morbid asthma for these regions of association. We further explored the genetic relationship between AD, asthma and psoriasis by examining previously identified susceptibility SNPs for these diseases. We found considerable overlap between AD and psoriasis together with variable coincidence between allergic rhinitis (AR) and asthma. Our results indicate that the pathogenesis of AD incorporates immune and epidermal barrier defects with combinations of specific and overlapping effects at individual loci.
Collapse
Affiliation(s)
- Stephan Weidinger
- Department of Dermatology, Venereology and Allergy, University Hospital Schleswig-Holstein and
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Ziyab AH, Davies GA, Ewart S, Hopkin JM, Schauberger EM, Wills-Karp M, Holloway JW, Arshad SH, Zhang H, Karmaus W. Interactive effect of STAT6 and IL13 gene polymorphisms on eczema status: results from a longitudinal and a cross-sectional study. BMC MEDICAL GENETICS 2013; 14:67. [PMID: 23815671 PMCID: PMC3700873 DOI: 10.1186/1471-2350-14-67] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 06/27/2013] [Indexed: 11/10/2022]
Abstract
BACKGROUND Eczema is a prevalent skin disease that is mainly characterized by systemic deviation of immune response and defective epidermal barrier. Th2 cytokines, such as IL-13 and transcription factor STAT6 are key elements in the inflammatory response that characterize allergic disorders, including eczema. Previous genetic association studies showed inconsistent results for the association of single nucleotide polymorphisms (SNPs) with eczema. Our aim was to investigate whether SNPs in IL13 and STAT6 genes, which share a biological pathway, have an interactive effect on eczema risk. METHODS Data from two independent population-based studies were analyzed, namely the Isle of Wight birth cohort study (IOW; n = 1,456) and for the purpose of replication the Swansea PAPA (Poblogaeth Asthma Prifysgol Abertawe; n = 1,445) cross-sectional study. Log-binomial regressions were applied to (i) account for the interaction between IL13 (rs20541) and STAT6 (rs1059513) polymorphisms and (ii) estimate the combined effect, in terms of risk ratios (RRs), of both risk factors on the risk of eczema. RESULTS Under a dominant genetic model, the interaction term [IL13 (rs20541) × STAT6 (rs1059513)] was statistically significant in both studies (IOW: adjusted P(interaction) = 0.046; PAPA: P(interaction) = 0.037). The assessment of the combined effect associated with having risk genotypes in both SNPs yielded a 1.52-fold increased risk of eczema in the IOW study (95% confidence interval (CI): 1.05 - 2.20; P = 0.028) and a 2.01-fold higher risk of eczema (95% CI: 1.29 - 3.12; P = 0.002) in the PAPA study population. CONCLUSIONS Our study adds to the current knowledge of genetic susceptibility by demonstrating for the first time an interactive effect between SNPs in IL13 (rs20541) and STAT6 (rs1059513) on the occurrence of eczema in two independent samples. Findings of this report further support the emerging evidence that points toward the existence of genetic effects that occur via complex networks involving gene-gene interactions (epistasis).
Collapse
Affiliation(s)
- Ali H Ziyab
- Department of Epidemiology and Biostatistics, Norman J. Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
High-density genotyping study identifies four new susceptibility loci for atopic dermatitis. Nat Genet 2013; 45:808-12. [PMID: 23727859 DOI: 10.1038/ng.2642] [Citation(s) in RCA: 129] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Accepted: 04/25/2013] [Indexed: 12/14/2022]
Abstract
Atopic dermatitis is a common inflammatory skin disease with a strong heritable component. Pathogenetic models consider keratinocyte differentiation defects and immune alterations as scaffolds, and recent data indicate a role for autoreactivity in at least a subgroup of patients. FLG (encoding filaggrin) has been identified as a major locus causing skin barrier deficiency. To better define risk variants and identify additional susceptibility loci, we densely genotyped 2,425 German individuals with atopic dermatitis (cases) and 5,449 controls using the Immunochip array followed by replication in 7,196 cases and 15,480 controls from Germany, Ireland, Japan and China. We identified four new susceptibility loci for atopic dermatitis and replicated previous associations. This brings the number of atopic dermatitis risk loci reported in individuals of European ancestry to 11. We estimate that these susceptibility loci together account for 14.4% of the heritability for atopic dermatitis.
Collapse
|
47
|
Ying XJ, Zhao SW, Wang GL, Xie J, Xu HM, Dong P. Association of interleukin-13 SNP rs20541 with allergic rhinitis risk: a meta-analysis. Gene 2013; 521:222-6. [PMID: 23545317 DOI: 10.1016/j.gene.2013.03.088] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Revised: 03/04/2013] [Accepted: 03/16/2013] [Indexed: 10/27/2022]
Abstract
Studies investigating the association between interleukin-13 (IL-13) single nucleotide polymorphism (SNP) rs20541 and allergic rhinitis (AR) risk have reported conflicting results. The aim of the present study was to conduct a meta-analysis assessing the possible association of IL-13 SNP rs20541 with AR risk. Eight studies were included in the present meta-analysis (2153 cases and 3931 controls). The combined results based on all studies showed that IL-13 SNP rs20541 was associated with increased AR risk (Gln versus Arg: odds ratio (OR)=1.18, 95% confidence interval (CI)=1.08-1.30; Gln/Gln versus Arg/Arg: OR=1.52, 95% CI=1.20-1.92; Arg/Gln+Gln/Gln versus Arg/Arg: OR=1.19, 95% CI=1.06-1.33; Gln/Gln versus Arg/Gln+Arg/Arg: OR=1.42, 95% CI=1.13-1.79). When stratifying for race, IL-13 SNP rs20541 exhibited increased AR risk in Asians (Gln versus Arg: OR=1.20, 95% CI=1.06-1.36; Gln/Gln versus Arg/Arg: OR=1.57, 95% CI=1.17-2.12; Arg/Gln+Gln/Gln versus Arg/Arg: OR=1.22, 95% CI=1.04-1.44; Gln/Gln versus Arg/Gln+Arg/Arg: OR=1.45, 95% CI=1.09-1.93), while no significant association was detected in Caucasians (Gln versus Arg: OR=1.28, 95% CI=0.93~1.78; Gln/Gln versus Arg/Arg: OR=1.42, 95% CI=0.96-2.11; Arg/Gln+Gln/Gln versus Arg/Arg: OR=1.35, 95% CI=0.89-2.05; Gln/Gln versus Arg/Gln+Arg/Arg: OR=1.37, 95% CI=0.93-2.02). This meta-analysis supported that IL-13 SNP rs20541 was associated with AR, particularly in Asians.
Collapse
Affiliation(s)
- Xin-Jiang Ying
- Department of Otolaryngology-Head and Neck Surgery, Shanghai First People's Hospital, Shanghai Jiao Tong University, Shanghai 200080, China.
| | | | | | | | | | | |
Collapse
|
48
|
Lightwood D, O'Dowd V, Carrington B, Veverka V, Carr MD, Tservistas M, Henry AJ, Smith B, Tyson K, Lamour S, Sarkar K, Turner A, Lawson AD, Bourne T, Gozzard N, Palframan R. The Discovery, Engineering and Characterisation of a Highly Potent Anti-Human IL-13 Fab Fragment Designed for Administration by Inhalation. J Mol Biol 2013; 425:577-93. [DOI: 10.1016/j.jmb.2012.11.036] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Revised: 11/20/2012] [Accepted: 11/22/2012] [Indexed: 01/13/2023]
|
49
|
Potaczek DP, Kabesch M. Current concepts of IgE regulation and impact of genetic determinants. Clin Exp Allergy 2013; 42:852-71. [PMID: 22909159 DOI: 10.1111/j.1365-2222.2011.03953.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Immunoglobulin E (IgE) mediated immune responses seem to be directed against parasites and neoplasms, but are best known for their involvement in allergies. The IgE network is tightly controlled at different levels as outlined in this review. Genetic determinants were suspected to influence IgE regulation and IgE levels considerably for many years. Linkage and candidate gene studies suggested a number of loci and genes to correlate with total serum IgE levels, and recently genome-wide association studies (GWAS) provided the power to identify genetic determinants for total serum IgE levels: 1q23 (FCER1A), 5q31 (RAD50, IL13, IL4), 12q13 (STAT6), 6p21.3 (HLA-DRB1) and 16p12 (IL4R, IL21R). In this review, we analyse the potential role of these GWAS hits in the IgE network and suggest mechanisms of how genes and genetic variants in these loci may influence IgE regulation.
Collapse
Affiliation(s)
- D P Potaczek
- Department of Pediatric Pneumology, Allergy and Neonatology, Hannover Medical School, Hannover, Germany
| | | |
Collapse
|
50
|
Abstract
Asthma affects nearly 300 million people worldwide. The majority respond to inhaled corticosteroid treatment with or without beta-adrenergic agonists. However, a subset of 5 to 10% with severe asthma do not respond optimally to these medications. Different phenotypes of asthma may explain why current therapies show limited benefits in subgroups of patients. Interleukin-13 is implicated as a central regulator in IgE synthesis, mucus hypersecretion, airway hyperresponsiveness, and fibrosis. Promising research suggests that the interleukin-13 pathway may be an important target in the treatment of the different asthma phenotypes.
Collapse
|