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Abdelazem AS, Khalil AA, Ghareeb D, Soliman AS, El Maghraby HM, Ismail NA, Hussein S. Interleukin-17 Genotypes in Egyptian Asthmatic Children at Zagazig University Hospitals. J Interferon Cytokine Res 2024. [PMID: 39066696 DOI: 10.1089/jir.2024.0098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024] Open
Abstract
Bronchial asthma (BA) is increasing among Egyptian children. It is affected by multiple factors including genetic ones. In the current study, we assessed the relationship between interleukin-17 (IL-17) genotypes and the occurrence of BA among Egyptian children. This case-control study included 100 participants. Group I (the control group) comprised 50 healthy subjects. Group II (the asthmatic group) comprised 50 subjects diagnosed with atopic asthma according to the Global Initiative for Asthma. Measurement of serum Ig E and eosinophilic count was performed. Detection of single nucleotide polymorphism rs2275913 of IL-17 gene by restriction fragment length polymorphism-polymerase chain reaction was conducted. GA and AA genotypes were more frequent in the asthmatic group compared to the control group (P = 0.03 and 0.01, respectively). Subjects carrying GA and AA genotypes were more susceptible to have asthma [odds ratio (OR) = 2.21, 95% confidence interval (CI) = 1.14-9.94, P = 0.03; OR = 7.78, 95% CI = 1.59-38.3, P = 0.01, respectively]. The A allele was higher in the asthmatic group (33%) compared to the control group (10%). A allele carriers were more susceptible to have asthma (OR = 4.43, 95% CI = 2.04-9.82 and P < 0.001). Immunoglobulin E (IgE) levels and eosinophil percentages were higher among the carriers of GA and AA genotypes when compared with the GG genotype. All pulmonary function tests were significantly lower among carriers of AA genotype compared with GG genotype. An A allele carrier, AA genotype, increased IgE level, and eosinophil level were significant predictors for occurrence of asthma (P = 0.01, 0.02, 0.004, and 0.01). In conclusion, AA genotype carriers and A allele carriers of the IL-17 gene are more likely to have asthma compared with controls.
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Affiliation(s)
- Abdallah S Abdelazem
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine , Suez University, Suez, Egypt
| | - Azza Ali Khalil
- Pediatrics Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Dalia Ghareeb
- Department of Clinical Pathology, Faculty of Medicine, Suez University, Suez, Egypt
| | - Ahmad Sallam Soliman
- Department of Clinical Pathology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Hanaa M El Maghraby
- Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Nagwan A Ismail
- Chest Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Samia Hussein
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Hassan T, Zakaria M, Diaa A, Abdalla AELS, Ahmed ALSMS, Abdelmonem DM, Abdelaziz E. Contribution of T helper 17 cells and interleukin-17 to the pathogenesis of primary immune thrombocytopenia in Egyptian children. Eur J Pediatr 2023; 182:5673-5679. [PMID: 37823926 PMCID: PMC10746750 DOI: 10.1007/s00431-023-05242-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/24/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023]
Abstract
Though pathogenesis of primary immune thrombocytopenia (ITP) is still rendered unclear, yet there are many research efforts that have been directed to the role of T helper 17 (Th17) and interleukin 17 (IL-17) in the pathogenesis of this disease. The Th17 cell, which produces IL-17, is a subset of T helper cells. Interleukin 17 is pro-inflammatory cytokine that is recently proved to have a crucial role in the emergence of autoimmune diseases. We aimed to investigate the role of T helper17 cells and interleukin-17 in the pathogenesis of ITP in Egyptian children. This study was carried out on 100 children with ITP and 100 apparently healthy children as a control group. Patients were subjected to full medical history taking, thorough physical examination and routine investigations according to our local standards. Percentage of Th17 cells was measured by flow cytometry in study groups. Also, serum IL-17 was measured in in study groups by ELISA. Th 17 cells were significantly higher in patients compared to controls. Moreover, 3.1-fold increased serum levels of IL-17 were observed in patients with ITP compared to controls. Newly diagnosed patients had significantly higher percentage of Th-17cells as well as higher IL-17 levels than patients with either persistent or chronic ITP. Conclusion: We concluded that Th 17 cells and IL-17 seem to play an important role in the pathogenesis of ITP in Egyptian children. What is Known -- What is New: • The pathogenesis of ITP is heterogeneous A novel subset of CD4+ T cells, distinct from Th1 and Th2, was recently identified. It is characterized by the production of IL-17 and, therefore, designated as Th17 cells. Several studies support a pivotal role for serum cytokines in the pathogenesis of ITP and provide evidence to suggest that helper Tlymphocytes polarize into Th1 and Th2 immune response. we aimed to investigate the role of T helper17 cells and interleukin-17 in the pathogenesis of ITP in Egyptian children.
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Affiliation(s)
- Tamer Hassan
- Pediatrics, Department, Faculty of Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Marwa Zakaria
- Pediatrics, Department, Faculty of Medicine, Zagazig University, Zagazig, 44519, Egypt.
| | - Asmaa Diaa
- Pediatrics, Department, Faculty of Medicine, Zagazig University, Zagazig, 44519, Egypt
| | | | | | - Doaa M Abdelmonem
- Clinical Pathology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Eman Abdelaziz
- Clinical Pathology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Arıkan S, Öztürk O, Duygulu Ş, Atalay EÖ, Atalay A. Associations of IL-17 and IL-17 receptor polymorphisms with Behçet's disease in Denizli Province of Turkey. Immunol Res 2023; 71:600-608. [PMID: 36701075 DOI: 10.1007/s12026-023-09363-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 01/17/2023] [Indexed: 01/27/2023]
Abstract
Although the etiopathogenesis of Behçet's disease is not known, studies conducted in different populations show that it is a multifactorial disease that is thought to develop as a result of the interaction of environmental and genetic factors. IL-17 is thought to induce the neutrophilic inflammation and the tissue damage mediated by immune response in patients. Polymorphisms in the gene region encoding IL-17 and IL-17R molecules may play a critical role in the pathogenesis of the disease and contribute to the elucidation of disease mechanism. We aimed to show the association of IL-17A, IL-17F, and IL-17RC polymorphisms and haplotypes in Behçet's disease patients and its clinical features. We genotyped IL-17A (rs4711998 (A/G), rs8193036 (C/T), rs2275913 (A/G), rs3819025 (A/G), rs8193038 (A/G), rs3804513 (A/T), rs1974226 (C/T), rs3748067 (C/T)); IL-17F (rs763780 (T/C), rs2397084 (T/C)); and IL-17R (IL-17RC) (rs708567 (C/T)) polymorphisms in 88 patients with Behçet's disease and 133 healthy controls using PCR-RFLP-based approach. The results of our study showed that polymorphisms of IL-17A, rs8193036 (C/T), rs3819025 (G/A), rs3804513 (A/T), IL-17F rs2397084 (T/C), and IL-17RC rs708567 (C/T) are associated with the susceptibility to the BD. When the haplotype distributions of all loci of IL-17Aand IL-17A/IL-17F together were examined and in contrast to the data obtained from the controls, the GTGGAACC (27.84%) and GTGGAACCTT (25.57%) have the highest frequencies. In conclusion, the allele and genotype frequency differences of the IL-17A, IL-17F, and IL-17R and haplotype frequencies between Behçet's disease and controls indicate that the genetic structure of Behçet's disease may be different.
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Affiliation(s)
- Sanem Arıkan
- Department of Biophysics, Faculty of Medicine, Pamukkale University, 20070, Denizli, Turkey.
| | - Onur Öztürk
- Department of Biophysics, Faculty of Medicine, Malatya Turgut Özal University, Malatya, Turkey
| | - Şeniz Duygulu
- Department of Dermatology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Erol Ömer Atalay
- Department of Biophysics, Faculty of Medicine, Pamukkale University, 20070, Denizli, Turkey
| | - Ayfer Atalay
- Department of Biophysics, Faculty of Medicine, Pamukkale University, 20070, Denizli, Turkey
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Oyaci Y, Aytac HM, Pehlivan M, Pehlivan S. Genetic polymorphism of IL-17F rs763780 contributes to the susceptibility to bipolar disorder but not to schizophrenia in the Turkish population. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2023; 42:852-866. [PMID: 37171073 DOI: 10.1080/15257770.2023.2211124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/28/2023] [Accepted: 04/30/2023] [Indexed: 05/13/2023]
Abstract
This study aims to investigate the genetic polymorphism in the interleukin-17F (IL-17F) (rs763780, 7488 A/G) gene in bipolar disorder (BD) and schizophrenia (SCZ) patients by comparing it with healthy controls considering clinical parameters. A sample of 107 patients with BD, 129 patients with SCZ, and 100 healthy volunteers were included. SCID-I was used to confirm the diagnosis according to DSM-IV-TR criteria. The Young Mania Rating Scale (YMRS) and the Hamilton Depression Rating Scale (HAM-D) were administered to BD patients. The Positive and Negative Symptoms Scale (PANSS) was applied to the patients with SCZ. PCR-RFLP was used to determine IL-17F gene polymorphism. Our results demonstrated that the distributions of the IL-17F genotype and the allele frequencies of BD patients were statistically significantly different from the control group. The AA genotype (OR: 0.283; 95% Cl: 0.140-0.573; p<.001) and A allele (OR: 0.333; 95% Cl: 0.171-0.646; p=.001) frequencies were significantly higher in the control group than in the BD group. The IL-17F genotype and the allele frequency distributions of SCZ patients were not statistically significantly different from the control group. When comparing scale scores due to the IL-17F genotype distributions in patients with BD or SCZ, there was no statistically significant difference between the groups of IL-17F genotypes. In summary, whereas the IL-17F polymorphism may be associated with BD, this polymorphism was not related to SCZ.
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Affiliation(s)
- Yasemin Oyaci
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Hasan Mervan Aytac
- Department of Psychiatry, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey
- Department of Developmental Behavioral Disorders and Integrative Approach, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Mustafa Pehlivan
- Department of Hematology, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey
| | - Sacide Pehlivan
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
- Department of Developmental Behavioral Disorders and Integrative Approach, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
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Zapata-Salazar NA, Kubelis-Lopez DE, Salinas-Santander MA, Sanchez-Dominguez CN, Xolalpa-Rosales AC, Gomez-Galindo ME, Ocampo-Candiani J. Association of rs4711998 of IL-17A, rs2275913 of IL-17A and rs763780 IL-17F gene polymorphisms with non-segmental vitiligo in a Mexican population. Arch Dermatol Res 2023; 315:447-454. [PMID: 35960353 DOI: 10.1007/s00403-022-02382-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/27/2022] [Accepted: 08/02/2022] [Indexed: 12/27/2022]
Abstract
Vitiligo is the most common depigmenting disease characterized by achromic macules due to selective loss of melanocytes. The pathogenesis remains poorly elucidated, and multiple hypotheses exist regarding its pathogenesis. Evidence suggests that stress on melanocytes can result in activation of the immune system, and involvement of both activated cluster of differentiation (CD8+) cytotoxic and CD4+ T cells in the dysfunction, depigmentation, and apoptosis of melanocytes. Recent studies show that the interleukin 17 (IL-17) axis plays a central role in the pathogenesis of the disease. IL-17 is an important regulatory effector cytokine in this pathway. The aim of this study was to evaluate the association of IL-17A rs4711998 (-832A/G), IL-17A rs2275913 (-197G/A), and IL-17F rs763780 (7488A/G) with vitiligo in a Northeastern Mexican population. This was a case-control study and included 116 patients with vitiligo and 116 control subjects. Genotype characterization of IL-17A rs4711998 (-832A/G), IL-17A rs2275913 (-197G/A), and IL-17F rs763780 (7488A/G) was performed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. A p ≤ 0.05 was considered significant. It was observed that the combination of the genotypes GG/GA for IL-17F rs763780 (7488A/G) was associated with an increased risk for the development of vitiligo (OR 2.0943, 95% Cl 1.2375-3.5445, p = 0.0056). Regarding IL-17A rs4711998 (-832A/G) and IL-17A rs2275913 (-197G/A) genotyping, no association with vitiligo development was found. In conclusion, the SNP rs763780 in the IL-17F gene appears to be a risk factor for vitiligo development in this Mexican population and it may be useful in future studies, especially for the development of new therapies.
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Affiliation(s)
- Natalia Aranza Zapata-Salazar
- Department of Dermatology, Facultad de Medicina y Hospital Universitario "Dr. Jose Eleuterio Gonzalez", Universidad Autonoma de Nuevo Leon (UANL), Av. Madero and Gonzalitos S/N, Mitras Centro, 64460, Monterrey, Nuevo Leon, Mexico
| | - David Emmanuel Kubelis-Lopez
- Department of Dermatology, Facultad de Medicina y Hospital Universitario "Dr. Jose Eleuterio Gonzalez", Universidad Autonoma de Nuevo Leon (UANL), Av. Madero and Gonzalitos S/N, Mitras Centro, 64460, Monterrey, Nuevo Leon, Mexico
| | | | - Celia Nohemi Sanchez-Dominguez
- Department of Biochemistry and Molecular Medicine, Facultad de Medicina y Hospital Universitario "Dr. Jose Eleuterio Gonzalez", Universidad Autonoma de Nuevo Leon (UANL), Monterrey, Nuevo Leon, Mexico
| | - Ana Cecilia Xolalpa-Rosales
- Facultad de Medicina y Hospital Universitario "Dr. Jose Eleuterio Gonzalez", Universidad Autonoma de Nuevo Leon (UANL), Monterrey, Nuevo Leon, Mexico
| | - Marely Eugenia Gomez-Galindo
- Facultad de Medicina y Hospital Universitario "Dr. Jose Eleuterio Gonzalez", Universidad Autonoma de Nuevo Leon (UANL), Monterrey, Nuevo Leon, Mexico
| | - Jorge Ocampo-Candiani
- Department of Dermatology, Facultad de Medicina y Hospital Universitario "Dr. Jose Eleuterio Gonzalez", Universidad Autonoma de Nuevo Leon (UANL), Av. Madero and Gonzalitos S/N, Mitras Centro, 64460, Monterrey, Nuevo Leon, Mexico.
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Lee YH, Song GG. Associations between interleukin 17A and 17F polymorphisms and asthma susceptibility: A meta-analysis. Int J Immunogenet 2023; 50:53-62. [PMID: 36658661 DOI: 10.1111/iji.12611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 12/09/2022] [Accepted: 01/03/2023] [Indexed: 01/21/2023]
Abstract
Owing to their role in inflammatory reactions and immunological responses as well as their chromosomal location, interleukin (IL) 17A and 17F are regarded as candidate causal genes associated with asthma. The aim of this study was to determine whether IL17 polymorphisms are associated with susceptibility to asthma. We used the PubMed/Medline and Embase databases to search for studies reporting IL17 polymorphisms in patients with asthma and healthy controls. Meta-analyses were conducted to determine the associations between IL17A rs8193036 (-737C/T), rs2275913 (-197G/A), rs3819024 (A/G), rs3748067 (C/T), and rs4711998 (A/G) and IL17F rs763780 (7488A/G), rs2397084 (T/C), rs1889570 (C/T), rs11465553 (G/A), and rs1266828 (T/C) polymorphisms and asthma susceptibility. A total of 20 studies were included in this meta-analysis. Our results revealed the IL17A rs8193036 CC genotype was associated with asthma susceptibility (odds ratio [OR] = 1.490, 95% confidence interval [CI] = 1.027-2.161, p = .036). However, stratification by ethnicity indicated no association between this polymorphism and asthma in European and Asian subjects. Furthermore, no association was found between this polymorphism and asthma using the allele contrast, dominant or homozygous contrast models. No evidence of an association was found between any of the other IL17A and IL17F polymorphisms and asthma susceptibility in this meta-analysis. This meta-analysis showed that, among the studied polymorphisms, only the CC genotype of IL17A rs8193036 is associated with asthma susceptibility.
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Affiliation(s)
- Young Ho Lee
- Department of Rheumatology, Korea University College of Medicine, Seoul, South Korea
| | - Gwan Gyu Song
- Department of Rheumatology, Korea University College of Medicine, Seoul, South Korea
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Ganta S, Komaravalli PL, Ahmad S, Gaddam SL. Influence of genetic variants and mRNA expression of interleukin IL17A gene in asthma susceptibility. Gene 2023; 854:147119. [PMID: 36529350 DOI: 10.1016/j.gene.2022.147119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Asthma is a chronic respiratory disease characterized by coughing, wheezing, shortness of breath, chest tightness, overproduction of mucus, and expiratory airflow limitation, which affects >300 million people worldwide. It is triggered by the dynamic interplay of genetic factors and environmental exposure. Th17 cells are an emerging subset of CD4+ T cells, which secrete IL-17A. This proinflammatory cytokine has recently been associated with asthma, autoimmune diseases, and inflammatory disorders. The present case-control study was focused on identifying the involvement of the IL-17A gene in asthma pathogenesis among 150 clinically diagnosed asthma patients and 150 healthy controls (HCs) of South Indian origin. To carry out the study, we aimed to screen the genetic variants of rs2275913G/A and rs8193036C/T and also estimated the serum cytokine levels of the IL-17A cytokine of recruited subjects. Further, we evaluated mRNA expression in selected subjects to correlate with the genetic variants. The results revealed that the mean IL-17A serum levels (161.6 ± 380.1 pg/ml vs. 86.75 ± 90.01 pg/ml) and IgE levels (257.7 ± 133.3 pg/ml vs. 311.2 ± 160.5 pg/ml) in asthma patients were significantly high as compared to healthy controls (p < 0.05). The ROC curves were constructed to compare the cytokine levels of asthma patients and HC, and the area under the curve (AUC) for IL-17A cytokine was 0.64, indicating that the test was satisfactory and significant (95 % CI: 0.575-0.709; p < 0.001). Genotyping of rs2275913G/A polymorphism indicated a 1.6-fold risk (95 % CI-1.02-2.56; p = 0.04) for asthma patients compared to healthy controls, whereas no significant association was observed for rs8193036C/T polymorphism with asthma susceptibility. Under genetic models, GA and AA models showed a protective effect against the disease for rs2275913G/A. In contrast, no statistically significant result was observed among the models of rs8193036C/T when adjusted with age and sex. The mRNA expression levels of the gene were statistically high in patients compared to the HCs, with a 1.8-fold change (p < 0.0001). We conclude that the results indicate IL-17A rs2275913G/A is likely to contribute to protection against the disease, while IL-17A rs8193036C/T shows no association with the disease. However, no correlation was identified in serum cytokine levels concerning genotypes. This comprehensive information in the present study might contribute to developing novel therapeutic strategies for treating inflammatory diseases like asthma. Further studies are warranted to understand the diverse functions of IL-17A concerning its longitudinal stability and its response to clinical interventions with large sample sizes in various ethnicities.
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Affiliation(s)
- Soujanya Ganta
- Department of Genetics, Osmania University, Hyderabad, India
| | - Prasanna Latha Komaravalli
- Department of Genetics, Osmania University, Hyderabad, India; Global Medical Education and Research Foundation, Lakdi-ka-pool, Hyderabad, India
| | - Shazia Ahmad
- Bhagwan Mahavir Medical Research Centre, Hyderabad, India
| | - Suman Latha Gaddam
- Department of Genetics, Osmania University, Hyderabad, India; Bhagwan Mahavir Medical Research Centre, Hyderabad, India.
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Relationship between asthma and IL-17 gene polymorphism in a Turkish population. Ir J Med Sci 2023; 192:269-275. [PMID: 35325374 PMCID: PMC8942807 DOI: 10.1007/s11845-022-02956-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/08/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND Asthma is a prevalent chronic obstructive disease of the airways. AIMS The aim of our study was to investigate the relationship between asthma and IL-17F gene 74488 T > C, IL-17A gene -197G > A, and IL17A gene -737C > T polymorphisms in Turkish population. METHODS In our study, peripheral blood samples collected from a total of 127 subjects, with 65 in the patient group and 62 in the control group, were analyzed for IL-17F gene 74488 T > C, IL-17A gene -197G > A, and IL17A gene -737C > T polymorphisms using next-generation sequencing. RESULTS There was no statistically significant relationship between IL-17A gene -197G > A and IL-17A gene -737C > T polymorphisms and the risk of developing asthma. It was found that the risk of developing asthma was 2.9-fold higher in individuals with a C allele in the IL-17F gene 7488 T > C polymorphic site than the individuals with a T allele. It was shown that ATT and GCT haplotype carriers had a greater disease risk compared with the GTT haplotype carriers. CONCLUSIONS In conclusion, IL-17F gene 7488 T > C polymorphism was found to be associated with asthma in the Turkish population. The IL-17 gene should be further investigated as a potential candidate gene in predicting asthma susceptibility and in the treatment of asthma.
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Mukai-Sasaki Y, Liao Z, Yang D, Inoue T. Modulators of radiation-induced cardiopulmonary toxicities for non-small cell lung cancer: Integrated cytokines, single nucleotide variants, and HBP systems imaging. Front Oncol 2022; 12:984364. [PMID: 36591530 PMCID: PMC9797663 DOI: 10.3389/fonc.2022.984364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 11/21/2022] [Indexed: 12/23/2022] Open
Abstract
Radiation therapy (RT)-induced cardiopulmonary toxicities remain dose-limiting toxicities for patients receiving radiation dosages to the thorax, especially for lung cancer. Means of monitoring and predicting for those receiving RT or concurrent chemoradiation therapy before treatment begins in individual patients could benefit early intervention to prevent or minimize RT-induced side effects. Another aspect of an individual's susceptibility to the adverse effects of thoracic irradiation is the immune system as reflected by phenotypic factors (patterns of cytokine expressions), genotypic factors (single nucleotide variants SNVs; formerly single nucleotide polymorphisms [SNPs]), and aspects of quantitative cellular imaging. Levels of transcription, production, and functional activity of cytokines are often influenced by SNVs that affect coding regions in the promoter or regulatory regions of cytokine genes. SNVs can also lead to changes in the expression of the inflammatory cytokines, interferons, interleukins (IL-6, IL-17) and tumor necrosis factors (TNF-α) at the protein level. RT-induced cardiopulmonary toxicities could be quantified by the uptake of 18F-fluorodeoxyglucose (FDG), however, FDG is a sensitive but not specific biomarker in differential diagnosis between inflammation/infection and tumor recurrence. FDG is suitable for initial diagnosis of predisposed tissue injuries in non-small cell lung cancer (NSCLC). 99mTc-ethylenedicysteine-glucosamine (99mTc-EC-G) was able to measure tumor DNA proliferation and myocardial ischemia via hexosamine biosynthetic pathways (HBP). Thus, 99mTc-EC-G could be an alternative to FDG in the assessment of RT doses and select patients in HBP-directed targets for optimal outcomes. This article reviewed correlative analyses of pro-inflammatory cytokines, genotype SNVs, and cellular imaging to improve the diagnosis, prognosis, monitoring, and prediction of RT-induced cardiopulmonary toxicities in NSCLC.
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Affiliation(s)
- Yuki Mukai-Sasaki
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States,Advanced Medical Center, Shonan Kamakura General Hospital, Kamakura, Japan,*Correspondence: Yuki Mukai-Sasaki,
| | - Zhongxing Liao
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - David Yang
- Advanced Medical Center, Shonan Kamakura General Hospital, Kamakura, Japan
| | - Tomio Inoue
- Advanced Medical Center, Shonan Kamakura General Hospital, Kamakura, Japan
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Hong L, Herjan T, Bulek K, Xiao J, Comhair SAA, Erzurum SC, Li X, Liu C. Mechanisms of Corticosteroid Resistance in Type 17 Asthma. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:1860-1869. [PMID: 36426949 PMCID: PMC9666330 DOI: 10.4049/jimmunol.2200288] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 09/07/2022] [Indexed: 12/14/2022]
Abstract
IL-17A plays an important role in the pathogenesis of asthma, particularly the neutrophilic corticosteroid (CS)-resistant subtype of asthma. Clinical studies suggest that a subset of asthma patients, i.e., Th17/IL-17A-mediated (type 17) CS-resistant neutrophilic asthma, may improve with Th17/IL-17A pathway blockade. However, little is known about the mechanisms underlying type 17 asthma and CS response. In this article, we show that blood levels of lipocalin-2 (LCN2) and serum amyloid A (SAA) levels are positively correlated with IL-17A levels and are not inhibited by high-dose CS usage in asthma patients. In airway cell culture systems, IL-17A induces these two secreted proteins, and their induction is enhanced by CS. Furthermore, plasma LCN2 and SAA levels are increased in mice on a preclinical type 17 asthma model, correlated to IL-17A levels, and are not reduced by glucocorticoid (GC). In the mechanistic studies, we identify CEBPB as the critical transcription factor responsible for the synergistic induction of LCN2 and SAA by IL-17A and GC. IL-17A and GC collaboratively regulate CEBPB at both transcriptional and posttranscriptional levels. The posttranscriptional regulation of CEBPB is mediated in part by Act1, the adaptor and RNA binding protein in IL-17A signaling, which directly binds CEBPB mRNA and inhibits its degradation. Overall, our findings suggest that blood LCN2 and SAA levels may be associated with a type 17 asthma subtype and provide insight into the molecular mechanism of the IL-17A-Act1/CEBPB axis on these CS-resistant genes.
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Affiliation(s)
- Lingzi Hong
- Inflammation and Immunity, Cleveland Clinic, Cleveland, OH; and
- Department of Pathology, School of Medicine, Case Western Reserve University, Cleveland, OH
| | - Tomasz Herjan
- Inflammation and Immunity, Cleveland Clinic, Cleveland, OH; and
| | - Katarzyna Bulek
- Inflammation and Immunity, Cleveland Clinic, Cleveland, OH; and
| | - Jianxin Xiao
- Inflammation and Immunity, Cleveland Clinic, Cleveland, OH; and
| | | | | | - Xiaoxia Li
- Inflammation and Immunity, Cleveland Clinic, Cleveland, OH; and
| | - Caini Liu
- Inflammation and Immunity, Cleveland Clinic, Cleveland, OH; and
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Current Understanding of Asthma Pathogenesis and Biomarkers. Cells 2022; 11:cells11172764. [PMID: 36078171 PMCID: PMC9454904 DOI: 10.3390/cells11172764] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/24/2022] [Accepted: 09/01/2022] [Indexed: 11/17/2022] Open
Abstract
Asthma is a heterogeneous lung disease with variable phenotypes (clinical presentations) and distinctive endotypes (mechanisms). Over the last decade, considerable efforts have been made to dissect the cellular and molecular mechanisms of asthma. Aberrant T helper type 2 (Th2) inflammation is the most important pathological process for asthma, which is mediated by Th2 cytokines, such as interleukin (IL)-5, IL-4, and IL-13. Approximately 50% of mild-to-moderate asthma and a large portion of severe asthma is induced by Th2-dependent inflammation. Th2-low asthma can be mediated by non-Th2 cytokines, including IL-17 and tumor necrosis factor-α. There is emerging evidence to demonstrate that inflammation-independent processes also contribute to asthma pathogenesis. Protein kinases, adapter protein, microRNAs, ORMDL3, and gasdermin B are newly identified molecules that drive asthma progression, independent of inflammation. Eosinophils, IgE, fractional exhaled nitric oxide, and periostin are practical biomarkers for Th2-high asthma. Sputum neutrophils are easily used to diagnose Th2-low asthma. Despite progress, more studies are needed to delineate complex endotypes of asthma and to identify new and practical biomarkers for better diagnosis, classification, and treatment.
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12
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El-Shal AS, Shalaby SM, Abdel-Nour HM, Sarhan WM, Hamed Gehad M, Mohamed Yousif Y. Impact of cytokines genes polymorphisms and their serum levels on childhood asthma in Egyptian population. Cytokine 2022; 157:155933. [PMID: 35728502 DOI: 10.1016/j.cyto.2022.155933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/13/2022] [Accepted: 05/30/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Asthma is chronic immune-mediated airway inflammation, and it is affected by a complex network of interacting cytokines. To date, the exact role of each cytokine and its genetic polymorphisms in childhood asthma development and its severity has remained poorly understood. The purpose of this study was to explore potential roles of four cytokine genes polymorphism and serum levels l [(T helper-2 (Th2) cytokine); Interleukin-4 (IL-4) 590, (Th3 cytokine); and transforming growth factor β1 (TGF-β1) 509T; (Th17) including tumor necrosis factor-alpha (TNF-α), and IL17A rs8193036] in childhood asthma risk and control in Egyptian children, for the 1st time. MATERIALS AND METHODS This case-control study included two children subgroups; Group1 included 216 non-asthmatic controls and (Group 2) 216 cases diagnosed with asthma (clinically and spirometry-based) were classified as controlled, partly controlled, and uncontrolled. Polymorphisms of TGF-β1-509, IL-4 590, and TNF-α-308 genes were detected using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). IL-17 was genotyped using tetra-primer amplification refractory mutation system polymerase chain reaction (ARMS-PCR). Serum cytokines levels were measured by enzyme-linked immunosorbent assay (ELISA). RESULTS Serum total IgE, TGF-β1, IL4, TNF-α, and IL17A levels were significantly higher in asthmatic compared to controls. Also, significant increases in serum total IgE, IL-4, TGF-β1, and TNF-α levels are combined with poor asthma control, while no significant IL17A changes. There were significant changes of IL-4-590, TNF-α-308, and IL17A genotypes and allele distributions between asthmatic and controls groups as well as different asthma control levels; while no impact of TGF-β1 SNP on asthma risk and control level. Four cytokines SNPs affected their serum levels among asthmatic patients. CONCLUSION There are impacts of cytokine gene polymorphisms (IL-4-590, TNF-α-308, and IL17A); but not TGF-β1 on asthma susceptibility and poor asthma control in Egyptian children.
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Affiliation(s)
- Amal S El-Shal
- Medical Biochemistry Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt; Medical Biochemistry and Molecular Biology Department, Armed Forces College of Medicine (AFCM), Cairo, Egypt.
| | - Sally M Shalaby
- Medical Biochemistry Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Hanim M Abdel-Nour
- Medical Biochemistry Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Walaa M Sarhan
- Medical Biochemistry Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mona Hamed Gehad
- Pediatrics Department, Faculty of Medicine, Zagazig University, Egypt
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13
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Sanad EMK, Nazmy NN, Abd-El Hamid El Sayed R, Hamed AM. Interleukin-17A gene single nucleotide polymorphism and its relation to fungal growth in psoriatic patients: A preliminary study. J Cosmet Dermatol 2021; 21:3059-3067. [PMID: 34741574 DOI: 10.1111/jocd.14551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/06/2021] [Accepted: 10/11/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Although dysbiosis and the role of the microbiome in the pathogenesis of inflammatory skin diseases have been intensively investigated, fungal colonization or infection has received minimal attention. AIMS To isolate and identify different fungal species namely Candida, Dermatophytes, Malassezia, and Aspergillus from plaque psoriasis patients, evaluate the association of IL-17A gene single nucleotide polymorphisms (SNPs) with psoriasis, and to reveal the relation between IL-17A gene SNPs and the fungal presence within the psoriatic plaques. PATIENTS/METHODS Fifty plaque psoriasis patients and fifty healthy age and sex volunteers as controls were enrolled in this study. From psoriatic plaques, mycological isolation was done by direct microscopic examination (10% KOH mount), culture onto the three sets of media then species identification by phenotypic procedures. Genomic DNA extraction and genotyping for IL-17A (rs10484879) SNPs using polymerase chain reaction and restriction fragment length polymorphism were also done. RESULTS Psoriasis cases showed higher frequency of fungal growth 86% vs. 14% in controls; (p < 0.001). The frequency of IL-17A GA, AA, and total polymorphism (GA+AA) genotypes in psoriasis cases was significantly higher than in controls. There was non-significant association between different IL-17A genotypes and fungal growth except Aspergillus flavus, which decreased gradually with GG, GA, and AA (37.5%, 20.8%, and 0%, respectively). CONCLUSIONS Psoriasis cases are significantly associated with fungal growth, which may be a contributing factor in its pathogenesis. SNPs of IL-17A (rs10484879) G/A gene led to increased susceptibility toward pathogenesis of psoriasis. Fungal growth and IL-17A GA+AA genotypes are suggested to be independent predictors of psoriasis susceptibility.
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Affiliation(s)
- Eman M K Sanad
- Faculty of Medicine, Department of Dermatology, Benha University, Benha, Egypt
| | - Nader N Nazmy
- Faculty of Medicine, Department of Dermatology, Benha University, Benha, Egypt
| | | | - Ahmed M Hamed
- Faculty of Medicine, Department of Dermatology, Benha University, Benha, Egypt
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14
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Shaban SA, Brakhas SA, Ad'hiah AH. Association of interleukin-17A genetic polymorphisms with risk of asthma: A case-control study in Iraqi patients. Meta Gene 2021. [DOI: 10.1016/j.mgene.2021.100935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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15
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Kammala AK, Bahal D, Yang C, Panettieri RA, Das R, Subramanian H. Na +/H + Exchanger Regulatory Factor 1 Mediates the Pathogenesis of Airway Inflammation in a Murine Model of House Dust Mite-Induced Asthma. THE JOURNAL OF IMMUNOLOGY 2021; 206:2301-2311. [PMID: 33952618 DOI: 10.4049/jimmunol.2001199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 03/16/2021] [Indexed: 11/19/2022]
Abstract
Na+/H+ exchanger regulatory factor 1 (NHERF1), a class I PDZ-binding protein, regulates G protein-coupled receptor signaling in some cell types. NHERF1 also functions as a scaffolding protein and activates non-G protein-coupled receptor signaling pathways, thereby contributing to the pathogenesis of various diseases. Although we have previously shown that NHERF1 regulates mast cell functions, there is little information regarding the role of NHERF1 in other immune cells. How NHERF1 regulates the pathogenesis of allergic disease such as asthma also remains unknown. In the current study, we show that NHERF1 promotes allergic airway inflammation in a house dust mite extract (HDME)-induced mouse model of asthma. Specifically, HDME-specific serum IgE levels, airway leukocyte numbers, and goblet cell hyperplasia were reduced in NHERF1+/- mice as compared with NHERF1+/+ mice. Interestingly, the gene expression of inflammatory (IL-17a, IL-25, and IL-33) as well as T helper 2 (Th2) cytokines (IL-4, IL-5, and IL-13) and several chemokines that recruit eosinophils, neutrophils, and lymphocytes were also decreased in the lungs of NHERF1+/- mice exposed to HDME. Consistent with these observations, microRNAs regulating mucus production, inflammation, Th2 effector functions, and IL-13 expression were increased in the lungs of HDME-treated NHERF1+/- mice. Overall, our studies reveal a unique role for NHERF1 in regulating asthma pathogenesis, and further elucidation of the mechanisms through which NHERF1 modulates allergic inflammation will lead to the development of new therapeutic strategies for asthma.
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Affiliation(s)
- Ananth K Kammala
- Department of Physiology, Michigan State University, East Lansing, MI
| | - Devika Bahal
- Department of Physiology, Michigan State University, East Lansing, MI
| | - Canchai Yang
- Department of Physiology, Michigan State University, East Lansing, MI
| | | | - Rupali Das
- Department of Physiology, Michigan State University, East Lansing, MI
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16
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Pojero F, Candore G, Caruso C, Di Bona D, Groneberg DA, Ligotti ME, Accardi G, Aiello A. The Role of Immunogenetics in COVID-19. Int J Mol Sci 2021; 22:2636. [PMID: 33807915 PMCID: PMC7961811 DOI: 10.3390/ijms22052636] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/26/2021] [Accepted: 03/03/2021] [Indexed: 12/14/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19) is induced by SARS-CoV-2 and may arise as a variety of clinical manifestations, ranging from an asymptomatic condition to a life-threatening disease associated with cytokine storm, multiorgan and respiratory failure. The molecular mechanism behind such variability is still under investigation. Several pieces of experimental evidence suggest that genetic variants influencing the onset, maintenance and resolution of the immune response may be fundamental in predicting the evolution of the disease. The identification of genetic variants behind immune system reactivity and function in COVID-19 may help in the elaboration of personalized therapeutic strategies. In the frenetic look for universally shared treatment plans, those genetic variants that are common to other diseases/models may also help in addressing future research in terms of drug repurposing. In this paper, we discuss the most recent updates about the role of immunogenetics in determining the susceptibility to and the history of SARS-CoV-2 infection. We propose a narrative review of available data, speculating about lessons that we have learnt from other viral infections and immunosenescence, and discussing what kind of aspects of research should be deepened in order to improve our knowledge of how host genetic variability impacts the outcome for COVID-19 patients.
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Affiliation(s)
- Fanny Pojero
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90134 Palermo, Italy; (F.P.); (G.C.); (M.E.L.); (G.A.)
| | - Giuseppina Candore
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90134 Palermo, Italy; (F.P.); (G.C.); (M.E.L.); (G.A.)
| | - Calogero Caruso
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90134 Palermo, Italy; (F.P.); (G.C.); (M.E.L.); (G.A.)
| | - Danilo Di Bona
- Department of Emergency and Organ Transplantation, University of Bari Aldo Moro, 70124 Bari, Italy;
| | - David A. Groneberg
- Institute of Occupational, Social and Environmental Medicine, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60596 Frankfurt, Germany;
| | - Mattia E. Ligotti
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90134 Palermo, Italy; (F.P.); (G.C.); (M.E.L.); (G.A.)
| | - Giulia Accardi
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90134 Palermo, Italy; (F.P.); (G.C.); (M.E.L.); (G.A.)
| | - Anna Aiello
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostic, University of Palermo, 90134 Palermo, Italy; (F.P.); (G.C.); (M.E.L.); (G.A.)
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Krynytska I, Marushchak M, Mykolenko A, Smachylo I, Sopel O, Kucher S. Bronchial Asthma: Genetic Factors Contributing to its Pathogenesis. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Researching bronchial asthma (BA)-linked gene polymorphisms can help to clarify heterogeneity of the disease and estimate its severity, which, in turn, will aid in developing an appropriate treatment corresponding to the patient’s unique asthma pathogenesis. The aim of presented review is to analyze the published data on the genetic preconditions of BA and the possible role of different genes polymorphisms in its pathogenesis. We have found that despite the fact that numerous genes are involved in the pathogenesis of BA and their polymorphisms are associated with increased risks for BA, it is important to understand that a combination of factors, both genetic and environmental, triggers BA development and determines its progression. On the other hand, the identification of BA susceptibility genes contributing to asthma pathogenesis and treatment response is the first step toward the development of personalized medicine.
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18
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Hinks TSC, Levine SJ, Brusselle GG. Treatment options in type-2 low asthma. Eur Respir J 2021; 57:13993003.00528-2020. [PMID: 32586877 DOI: 10.1183/13993003.00528-2020] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 06/01/2020] [Indexed: 12/17/2022]
Abstract
Monoclonal antibodies targeting IgE or the type-2 cytokines interleukin (IL)-4, IL-5 and IL-13 are proving highly effective in reducing exacerbations and symptoms in people with severe allergic and eosinophilic asthma, respectively. However, these therapies are not appropriate for 30-50% of patients in severe asthma clinics who present with non-allergic, non-eosinophilic, "type-2 low" asthma. These patients constitute an important and common clinical asthma phenotype, driven by distinct, yet poorly understood pathobiological mechanisms. In this review we describe the heterogeneity and clinical characteristics of type-2 low asthma and summarise current knowledge on the underlying pathobiological mechanisms, which includes neutrophilic airway inflammation often associated with smoking, obesity and occupational exposures and may be driven by persistent bacterial infections and by activation of a recently described IL-6 pathway. We review the evidence base underlying existing treatment options for specific treatable traits that can be identified and addressed. We focus particularly on severe asthma as opposed to difficult-to-treat asthma, on emerging data on the identification of airway bacterial infection, on the increasing evidence base for the use of long-term low-dose macrolides, a critical appraisal of bronchial thermoplasty, and evidence for the use of biologics in type-2 low disease. Finally, we review ongoing research into other pathways including tumour necrosis factor, IL-17, resolvins, apolipoproteins, type I interferons, IL-6 and mast cells. We suggest that type-2 low disease frequently presents opportunities for identification and treatment of tractable clinical problems; it is currently a rapidly evolving field with potential for the development of novel targeted therapeutics.
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Affiliation(s)
- Timothy S C Hinks
- Respiratory Medicine Unit and National Institute for Health Research (NIHR) Oxford Biomedical Research Centre (BRC), Nuffield Dept of Medicine, Experimental Medicine, University of Oxford, Oxford, UK
| | - Stewart J Levine
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Guy G Brusselle
- Dept of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium.,Depts of Epidemiology and Respiratory Medicine, Erasmus Medical Center Rotterdam, Rotterdam, The Netherlands
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19
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Holster A, Teräsjärvi J, Barkoff A, Lauhkonen E, Törmänen S, Helminen M, Korppi M, He Q, Nuolivirta K. IL17F rs763780 single nucleotide polymorphism is associated with asthma after bronchiolitis in infancy. Acta Paediatr 2021; 110:222-227. [PMID: 32495451 DOI: 10.1111/apa.15390] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 05/29/2020] [Indexed: 01/08/2023]
Abstract
AIM Interleukin-17F (IL-17F) is involved with asthma. The aim of this study was to evaluate the association of IL17F polymorphisms with childhood asthma after bronchiolitis in infancy. METHODS We invited 166 children who were hospitalised for bronchiolitis at younger than 6 months of age to follow-up visits at 5-7 years and 11-13 years of ages. Asthma and allergy diagnoses, asthma-presumptive symptoms and use of inhaled corticosteroids (ICSs) were registered. Blood samples were available for IL17F rs763780 (T/C), rs11465553 (C/T) and rs7741835 (C/T) determinations in 165 cases. RESULTS The presence of IL17F rs11465553 and rs7741835 variations showed no significant associations with any asthma or allergy outcome at either 5-7 years or 11-13 years of ages. Instead, children with the variant IL17F rs763780 genotype had used more often ICSs between the follow-up visits from 5-7 to 11-13 years (adjusted OR 3.58) than those with the wild genotype. Children with the variant IL17F rs763780 genotype reported more often doctor-diagnosed atopic dermatitis (adjusted OR 2.71) at 11-13 years of age than those with the wild genotype. CONCLUSION This prospective long-term follow-up study provided preliminary evidence on the association of the IL17F rs763780 polymorphism with asthma at school age after bronchiolitis in infancy.
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Affiliation(s)
- Annukka Holster
- Center for Child Health Research Faculty of Medicine and Life Sciences University of Tampere and University Hospital Tampere Finland
| | | | | | - Eero Lauhkonen
- Center for Child Health Research Faculty of Medicine and Life Sciences University of Tampere and University Hospital Tampere Finland
| | - Sari Törmänen
- Center for Child Health Research Faculty of Medicine and Life Sciences University of Tampere and University Hospital Tampere Finland
| | - Merja Helminen
- Center for Child Health Research Faculty of Medicine and Life Sciences University of Tampere and University Hospital Tampere Finland
| | - Matti Korppi
- Center for Child Health Research Faculty of Medicine and Life Sciences University of Tampere and University Hospital Tampere Finland
| | - Qiushui He
- Institute of Biomedicine University of Turku Turku Finland
- Department of Medical Microbiology Capital Medical University Beijing China
| | - Kirsi Nuolivirta
- Department of Pediatrics Seinäjoki Central Hospital Seinäjoki Finland
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20
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What are the effects of IL-1β (rs1143634), IL-17A promoter (rs2275913) and TLR4 (rs4986790) gene polymorphism on the outcomes of infection with H. pylori within as Iranian population; A systematic review and meta-analysis. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100735] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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21
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A genetic variant of IL17A gene promoter is associated with reduced risk of multiple sclerosis disease in the Iranian population. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Hynes GM, Hinks TSC. The role of interleukin-17 in asthma: a protective response? ERJ Open Res 2020; 6:00364-2019. [PMID: 32494573 PMCID: PMC7248344 DOI: 10.1183/23120541.00364-2019] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 03/04/2020] [Indexed: 02/06/2023] Open
Abstract
While there now exist effective treatments for type 2 high, eosinophilic asthma, there are no specific therapies for 40–50% of people with asthma with other phenotypes, which result from poorly understood underlying pathological mechanisms. One such pathology is neutrophilic inflammation, which has been associated with interleukin (IL)-17 family cytokines. Human genetic studies identified IL-17 polymorphisms associated with asthma; in murine models of allergic airways disease, IL-17A contributes to airway hyperresponsiveness, and in humans, elevated airway IL-17A levels are repeatedly observed in severe asthma. However, the directionality of this association is unknown, and the assumption that IL-17 cytokines drive disease pathology remains speculative. Here, we explore the evidence underlying the relationship between IL-17 and asthma, we review lessons learned from investigating IL-17 in other inflammatory diseases, and discuss the possibility that IL-17 may even be protective in asthma rather than pathogenic. We also critically examine the newly proposed paradigm of a reciprocal relationship between type 2 and type 17 airways inflammation. In summary, we suggest an association between IL-17 and asthma, but research is needed examining the diverse functions of these cytokines, their longitudinal stability, their response to clinical interventions, and for mechanistic studies determining whether they are protective or pathogenic. IL-17 cytokines have been implicated in neutrophilic asthma by genetic, murine and human data. Here, previous studies are critiqued and the assumption their dominant role is pathogenic rather than protective of airway epithelial barrier integrity is challenged.http://bit.ly/3axB4Zs
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Affiliation(s)
- Gareth M Hynes
- Respiratory Medicine Unit and National Institute for Health Research Oxford Biomedical Research Centre, Nuffield Dept of Medicine, Experimental Medicine, University of Oxford, Oxford, UK
| | - Timothy S C Hinks
- Respiratory Medicine Unit and National Institute for Health Research Oxford Biomedical Research Centre, Nuffield Dept of Medicine, Experimental Medicine, University of Oxford, Oxford, UK
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23
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Lin PI, Shu H, Mersha TB. Comparing DNA methylation profiles across different tissues associated with the diagnosis of pediatric asthma. Sci Rep 2020; 10:151. [PMID: 31932625 PMCID: PMC6957523 DOI: 10.1038/s41598-019-56310-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 12/02/2019] [Indexed: 12/30/2022] Open
Abstract
DNA methylation (DNAm) profiles in central airway epithelial cells (AECs) may play a key role in pathological processes in asthma. The goal of the current study is to compare the diagnostic performance of DNAm markers across three tissues: AECs, nasal epithelial cells (NECs), and peripheral blood mononuclear cells (PBMCs). Additionally, we focused on the results using the machine learning algorithm in the context of multi-locus effects to evaluate the diagnostic performance of the optimal subset of CpG sites. We obtained 74 subjects with asthma and 41 controls from AECs, 15 subjects with asthma and 14 controls from NECs, 697 subjects with asthma and 97 controls from PBMCs. Epigenome-wide DNA methylation levels in AECs, NECs and PBMCs were measured using the Infinium Human Methylation 450 K BeadChip. Overlap analysis across the three different sample sources at the locus and pathway levels were studied to investigate shared or unique pathophysiological processes of asthma across tissues. Using the top 100 asthma-associated methylation markers as classifiers from each dataset, we found that both AEC- and NEC-based DNAm signatures exerted a lower classification error than the PBMC-based DNAm markers (p-value = 0.0002). The area-under-the-curve (AUC) analysis based on out-of-bag errors using the random forest classification algorithm revealed that PBMC-, NEC-, and AEC-based methylation data yielded 31 loci (AUC: 0.87), 8 loci (AUC: 0.99), and 4 loci (AUC: 0.97) from each optimal subset of tissue-specific markers, respectively. We also discovered the locus-locus interaction of DNAm levels of the CDH6 gene and RAPGEF3 gene might interact with each other to jointly predict the risk of asthma – which suggests the pivotal role of cell-cell junction in the pathological changes of asthma. Both AECs and NECs might provide better diagnostic accuracy and efficacy levels than PBMCs. Further research is warranted to evaluate how these tissue-specific DNAm markers classify and predict asthma risk.
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Affiliation(s)
- Ping-I Lin
- Department of Health Sciences, Karlstad University, Karlstad, Sweden
| | - Huan Shu
- Department of Health Sciences, Karlstad University, Karlstad, Sweden.,Department of Environmental Science and Analytical Chemistry, Stockholm University, Stockholm, Sweden
| | - Tesfaye B Mersha
- Division of Asthma Research, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA.
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24
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Liu Z, Niu C, Ying L, Zhang Q, Long M, Fu Z. Exploration of the Serum Interleukin-17 and Interleukin-27 Expression Levels in Children with Bronchial Asthma and Their Correlation with Indicators of Lung Function. Genet Test Mol Biomarkers 2019; 24:10-16. [PMID: 31880470 DOI: 10.1089/gtmb.2019.0155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Aims: To investigate the expression levels of serum interleukin-17 (IL-17) and interleukin-27 (IL-27) in children with bronchial asthma and to correlate these expression levels with lung function indicators. Methods: A total of 106 children with bronchial asthma (observation group: 76 in the acute attack phase, 30 in remission) and 60 healthy children (control group) aged 1-10 years were enrolled. Results: Levels of IL-17, IL-27, and fractional exhaled nitric oxide (FeNO) in the peripheral blood of children with bronchial asthma were higher compared to the control group. In addition, blood IL-17, IL-27, and FeNO levels in the children in the acute stage of bronchial asthma were higher compared with those in remission. The respiratory rate of children in the remission stage was lower compared with those in the acute stage, however, the other indicators were higher. IL-17, IL-27, and FeNO levels positively correlated with the respiratory rate and were negatively correlated with inspiratory time, expiratory time, peak time, and time to reach peak tidal expiratory flow/total expiratory time (TPTEF/TE; all p < 0.05). Conclusion: IL-17 and IL-27 levels are associated with the incidence and the development of bronchial asthma in children, and could be useful diagnostic markers. They may also effectively improve the specificity of FeNO for diagnosing the extent of lung injury in children.
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Affiliation(s)
- Zheng Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing City, China.,Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing City, China
| | - Chao Niu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing City, China.,Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing City, China
| | - Linyan Ying
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing City, China.,Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing City, China
| | - Qiao Zhang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing City, China.,Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing City, China
| | - Meiling Long
- Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing City, China
| | - Zhou Fu
- Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Key Laboratory of Pediatrics in Chongqing, Chongqing City, China
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Kurnaz S, Yazici AB, Nursal AF, Cetinay Aydin P, Ongel Atar A, Aydin N, Kincir Z, Pehlivan S. CNR2 rs2229579 and COMT Val158Met variants, but not CNR2 rs2501432, IL-17 rs763780 and UCP2 rs659366, contribute to susceptibility to substance use disorder in the Turkish population. PSYCHIAT CLIN PSYCH 2019. [DOI: 10.1080/24750573.2019.1688030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Affiliation(s)
- Selin Kurnaz
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Ahmet Bulent Yazici
- Department of Psychiatry, Sakarya University Training and Research Hospital, Sakarya, Turkey
| | - Ayse Feyda Nursal
- Department of Medical Genetics, Faculty of Medicine, Hitit University, Corum, Turkey
| | - Pinar Cetinay Aydin
- Department of Psychiatry, Bakirkoy Mazhar Osman Training and Research Hospital for Psychiatry, Istanbul, Turkey
| | - Ayca Ongel Atar
- Department of Psychiatry, Bakirkoy Mazhar Osman Training and Research Hospital for Psychiatry, Istanbul, Turkey
| | - Nazan Aydin
- Department of Psychiatry, Bakirkoy Mazhar Osman Training and Research Hospital for Psychiatry, Istanbul, Turkey
| | - Zeliha Kincir
- Department of Psychiatry, Bakirkoy Mazhar Osman Training and Research Hospital for Psychiatry, Istanbul, Turkey
| | - Sacide Pehlivan
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
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Gautam Y, Afanador Y, Abebe T, López JE, Mersha TB. Genome-wide analysis revealed sex-specific gene expression in asthmatics. Hum Mol Genet 2019; 28:2600-2614. [PMID: 31095684 DOI: 10.1093/hmg/ddz074] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 03/04/2019] [Accepted: 04/02/2019] [Indexed: 01/08/2023] Open
Abstract
Global gene-expression analysis has shown remarkable difference between males and females in response to exposure to many diseases. Nevertheless, gene expression studies in asthmatics have so far focused on sex-combined analysis, ignoring inherent variabilities between the sexes, which potentially drive disparities in asthma prevalence. The objectives of this study were to identify (1) sex-specific differentially expressed genes (DEGs), (2) genes that show sex-interaction effects and (3) sex-specific pathways and networks enriched in asthma risk. We analyzed 711 males and 689 females and more than 2.8 million transcripts covering 20 000 genes leveraged from five different tissues and cell types (i.e. epithelial, blood, induced sputum, T cells and lymphoblastoids). Using tissue-specific meta-analysis, we identified 439 male- and 297 female-specific DEGs in all cell types, with 32 genes in common. By linking DEGs to the genome-wide association study (GWAS) catalog and the lung and blood eQTL annotation data from GTEx, we identified four male-specific genes (FBXL7, ITPR3 and RAD51B from epithelial tissue and ALOX15 from blood) and one female-specific gene (HLA-DQA1 from epithelial tissue) that are disregulated during asthma. The hypoxia-inducible factor 1 signaling pathway was enriched only in males, and IL-17 and chemokine signaling pathways were enriched in females. The cytokine-cytokine signaling pathway was enriched in both sexes. The presence of sex-specific genes and pathways demonstrates that sex-combined analysis does not identify genes preferentially expressed in each sex in response to diseases. Linking DEG and molecular eQTLs to GWAS catalog represents an important avenue for identifying biologically and clinically relevant genes.
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Affiliation(s)
- Yadu Gautam
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Yashira Afanador
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
| | - Tilahun Abebe
- Department of Biology, University of Northern Iowa, Cedar Falls, IA, USA
| | - Javier E López
- Department of Internal Medicine, University of California Davis, Davis, CA, USA
| | - Tesfaye B Mersha
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, OH, USA
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Correlations of IL-17 and NF-κB gene polymorphisms with susceptibility and prognosis in acute respiratory distress syndrome in a chinese population. Biosci Rep 2019; 39:BSR20181987. [PMID: 30655311 PMCID: PMC6367126 DOI: 10.1042/bsr20181987] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 01/01/2019] [Accepted: 01/13/2019] [Indexed: 02/08/2023] Open
Abstract
The present study was performed to investigate the association between interleukin-17 (IL-17) and nuclear factor κB (NF-κB) gene polymorphisms and the risk and prognosis of acute respiratory distress syndrome (ARDS) in a Chinese population. A total of 210 Chinese patients with ARDS were selected as the study group, 210 individuals who were identified as at-risk patients but did not meet criteria for ARDS were recruited as the control group. Three single nucleotide polymorphisms (SNPs) of IL-17, including rs763780 (A>G), rs2275913 (G>A), rs8193036 (C>T) and NF-κB1 gene rs3774934 (G>A) loci were examined by Sanger sequencing technique in the peripheral blood of all subjects. Patients were followed for 30-day survival. The IL-17 rs763780 and NF-κB1 rs3774934 SNPs had no impact on ARDS risk and prognosis of ARDS (P>0.05). Compared with individuals carrying the wild-type GG genotype of rs2275913 at IL-17, the AA-homozygous and GA- heterozygous individuals were protected from the development of ARDS. Consistently, a decreased 30-day mortality risk was found among A-allele carriers of rs2275913 at IL-17 (p<0.05). For IL-17 rs8193036 SNP, the homozygote TT genotype and heterozygote CT genotypes were associated with increased ARDS susceptibility and 30-day mortality risk (P<0.05). Besides, decreased IL-17 levels were found in A-allele carriers of IL-17 rs2275913, whereas individuals carrying T-allele of IL-17 rs8193036 were found to have significantly increased levels of IL-17 (P<0.05). Our results suggested that two functional polymorphisms of IL-17, rs2275913 and rs8193036 were associated with ARDS risk and prognosis, indicating that the two genetic variants might act as possible markers for the prediction of ARDS risk and development.
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Assessment of IL-17F rs763780 gene polymorphism in immune thrombocytopenia. Blood Cells Mol Dis 2018; 75:20-25. [PMID: 30594845 DOI: 10.1016/j.bcmd.2018.12.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 12/08/2018] [Accepted: 12/12/2018] [Indexed: 12/18/2022]
Abstract
Interleukin-17F rs763780 (7488A/G) gene polymorphism obviously affecting the expression and activity of IL17F and may affect primary immune thrombocytopenia (PIT) susceptibility and its clinical features in Egyptian children and adults. 105 ITP patients divided into (63 pediatric and 42 adult patient) and 112 age and sex matched healthy controls were enrolled in this case control study. All patients were subjected to history taking; clinical examination, CBC, bone marrow aspiration and genotyping of IL17F rs763780 polymorphism by (PCR-RFLP) technique. Our results revealed significant decrease in the mutant heterozygous genotype AG and also in IL-17F mutant allele G frequency in ITP patient group and associated with increased risk for ITP compared with the control group (P = 0.04 and P = 0.005 respectively). Furthermore, the mutant allele G frequency was significantly decreased in childhood onset than adult onset ITP (OR = 0.31, P = 0.02) and also was significantly lower in chronic ITP when compared with newly diagnosed and persistent ITP (P = 0.005). Patients with the AA genotype showed severe thrombocytopenic state at diagnosis than those with the AG genotype (P = 0.04). We concluded from our results that interleukin-17F rs763780 (7488A/G) polymorphism is strongly correlated with susceptibility and severity of ITP.
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Zhai C, Li S, Feng W, Shi W, Wang J, Wang Q, Chai L, Zhang Q, Yan X, Li M. Association of interleukin-17a rs2275913 gene polymorphism and asthma risk: a meta-analysis. Arch Med Sci 2018; 14:1204-1211. [PMID: 30393475 PMCID: PMC6209699 DOI: 10.5114/aoms.2018.73345] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 11/14/2016] [Indexed: 01/05/2023] Open
Abstract
INTRODUCTION Interleukin-17A (IL-17A), a pro-inflammatory cytokine, plays an important role in the pathogenesis of asthma. A number of studies have investigated the relationship between IL-17A rs2275913 polymorphism and risk of asthma. However, the results obtained are inconclusive. The aim of this meta-analysis is to clarify the relationship between IL-17A rs2275913 polymorphism and asthma risk. MATERIAL AND METHODS Searches were conducted in PubMed, Web of Science, Elsevier, Google Scholar, Wanfang and Chinese National Knowledge Infrastructure (CNKI) databases, and data were extracted from eligible studies by two independent reviewers. The pooled odds ratios (ORs) and corresponding 95% confidence intervals (CIs) were calculated. Publication bias, heterogeneity and sensitivity analysis were also assessed. RESULTS Ten studies with a total of 5016 subjects were included. Overall, the results indicated a significant association between the IL-17A rs2275913 polymorphism and the risk of asthma (G vs. A: OR = 0.866, 95% CI: 0.789-0.951, p = 0.003; GG+GA vs. AA: OR = 0.752, 95% CI: 0.633-0.895, p = 0.001). In subgroup analysis by age and ethnicity, the G allele of rs2275913 in IL-17A was significantly associated with a reduced risk of asthma in children and Asians. CONCLUSIONS The results of this meta-analysis indicate that the G allele of rs2275913 in IL-17A is a protective factor for the development of asthma.
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Affiliation(s)
- Cui Zhai
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Shaojun Li
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Wei Feng
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Wenhua Shi
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Jian Wang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Qingting Wang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Limin Chai
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Qianqian Zhang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Xin Yan
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
| | - Manxiang Li
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, China
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Botros SK, Ibrahim OM, Gad AA. Study of the role of IL-17F gene polymorphism in the development of immune thrombocytopenia among the Egyptian children. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2018. [DOI: 10.1016/j.ejmhg.2018.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Role of gene polymorphisms/haplotypes and serum levels of interleukin-17A in susceptibility to viral myocarditis. Exp Mol Pathol 2018. [PMID: 29530464 DOI: 10.1016/j.yexmp.2018.03.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Interleukin-17A (IL-17A) has been implicated in the pathogenesis of viral myocarditis (VMC). However, the role of IL-17A polymorphisms in susceptibility to VMC has not been reported to date. The aim of this study was to explore the association between IL-17A variants as well as serum IL-17 levels with VMC. Three single-nucleotide polymorphisms (SNPs) (rs2275913, rs3819025, and rs3748067) were analyzed by the polymerase chain reaction-restriction fragment length polymorphism method in 236 VMC patients and 259 controls from China. Serum IL-17A levels were measured by enzyme-linked immunosorbent assay kits. Multivariable logistic regression analysis that the rs2275913 AA genotype and the haplotype -197A/+45G/+1249G (AGG) were associated with an increased risk of VMC (all P < 0.05). Consistent with these findings, the rs2275913 AA genotype was linked to higher serum IL-17A compared to GG/AG genotype (all P < 0.001). We observed no associations between the other two SNPs and risk of VMC. Serum IL-17A levels were significantly higher in the VMC group than controls (P < 0.001) and gradually increased with the increase of New York Heart Association grade in VMC patients (P < 0.05). Spearman correlation test revealed that the serum IL-17A level was correlated with the cardiac damage and left ventricular systolic functions among VMC patients (all P < 0.05). Our study reveals that IL-17A expression may contribute to the development and severity of VMC. The SNP rs2275913 in the IL-17A gene might exert influence on susceptibility to VMC via linking with the serum IL-17A level.
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Holster A, Teräsjärvi J, Lauhkonen E, Törmänen S, Helminen M, Koponen P, Korppi M, Peltola V, He Q, Nuolivirta K. IL-17A gene polymorphism rs2275913 is associated with the development of asthma after bronchiolitis in infancy. Allergol Int 2018. [PMID: 28647382 DOI: 10.1016/j.alit.2017.05.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
BACKGROUND Interleukin-17 (IL-17A) is a mainly pro-inflammatory cytokine, and IL-17 signaling implicates in the development of allergic asthma. The polymorphism rs2275913 in the promoter region of the IL-17A gene has in previous studies been associated with asthma susceptibility. The objective was to evaluate the association between IL-17A rs2275913 (-197G>A) polymorphism and post-bronchiolitis asthma and/or allergic rhinitis in a prospective 11-13 years post-bronchiolitis follow-up. METHODS 166 previously healthy full-term infants, hospitalized for bronchiolitis at age less than 6 months, were invited to follow-up visits at the ages of 5-7 years and 11-13 years. Asthma diagnoses and presumptive symptoms, allergic rhinitis and use of inhaled corticosteroids (ICS) were registered. Blood samples for IL-17A rs2275913 (-197G>A) polymorphism were obtained during hospitalization or at the 5-7 years control visit. RESULTS There were no significant differences between children with the wild GG and variant GA or AA genotype in the severity of bronchiolitis during hospitalization or in the outcomes until the age 5-7 years. At 11-13 years of age, children with the variant GA or AA genotype had significantly less often current asthma, use of ICSs during last 12 months or allergic rhinitis than those with the wild GG genotype. The ICS use during last 12 months retained the statistical significance in adjusted analyses (adjusted OR 0.25), whereas current asthma and allergic rhinitis marginally lost it. CONCLUSIONS The IL-17A rs2275913 (-197G>A) polymorphism decreased the risk of post-bronchiolitis asthma at 11-13 years of age, but not earlier in life, in the present prospective, long-term follow-up study.
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Zhu Y, Yan X, Zhai C, Yang L, Li M. Association between risk of asthma and gene polymorphisms in CHI3L1 and CHIA: a systematic meta-analysis. BMC Pulm Med 2017; 17:193. [PMID: 29233108 PMCID: PMC5726029 DOI: 10.1186/s12890-017-0515-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 11/21/2017] [Indexed: 11/10/2022] Open
Abstract
Background Previous studies have indicated that chitinase 3-like 1 (CHI3L1) gene rs4950928 polymorphism and acidic mammalian chitinase (AMCase or CHIA) gene rs10494132 polymorphism are associated with the risk of asthma. However, the results are inconsistent because of small sample size and varied ethnicity and age in studies. Therefore, a systematic meta-analysis was important to clarify the effect of CHI3L1 rs4950928 polymorphism and CHIA rs10494132 variant on asthma risk. Methods An electronic literature search was conducted to identify all the eligible studies. Odds ratios (ORs) with 95% confidence intervals (CIs) were calculated and sensitivity analysis as well as publication bias were assessed to investigate the associations. All statistical analyses were performed using STATA 12.0. Results Eight published articles with 10 case-control studies were included, 5 studies were of CHI3L1 rs4950928 polymorphism and another 5 studies involved CHIA rs10494132 polymorphism. Overall, no significant association was found between CHI3L1 polymorphism and asthma susceptibility. After stratified according to ethnicity, CHI3L1 rs4950928 variant was associated with decreased asthma risk in Caucasians (GG + GC vs. CC: OR = 0.621, 95% CI = 0.484–0.797, P = 0.000; GC vs. CC: OR = 0.612, 95% CI = 0.470–0.796, P = 0.000; G vs. C: OR = 0.696, 95% CI = 0.567–0.856, P = 0.001). When stratified population by age, there was no association in children under all genetic models. As for CHIA rs10494132 polymorphism, no evidence of association between CHIA rs10494132 polymorphism and asthma risk was identified. Furthermore, subgroup analysis by ethnicity revealed a positive correlation between CHIA rs10494132 polymorphism and asthma risk among Asians (TT vs. TC + CC: OR = 1.476, 95% CI = 1.071–2.032, P = 0.017; T vs. C: OR = 1.326, 95% CI = 1.024–1.717, P = 0.032). Additionally, in the subgroup analysis conducted according to age, CHIA rs10494132 variant was also found to be associated with the increased risk of asthma in children (TT vs. TC + CC: OR = 1.472, 95% CI = 1.067–2.030, P = 0.019; T vs. C: OR = 1.320, 95% CI = 1.016–1.713, P = 0.037). Conclusions The G allele of CHI3L1 rs4950928 might be a protective factor against the development of asthma. However, the rs10494132 polymorphism of CHIA might be a risk factor for asthma.
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Affiliation(s)
- Yanting Zhu
- Department of Respiratory Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No.277, West Yanta Road, Xi'an, 710061, Shaanxi, People's Republic of China
| | - Xin Yan
- Department of Respiratory Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No.277, West Yanta Road, Xi'an, 710061, Shaanxi, People's Republic of China
| | - Cui Zhai
- Department of Respiratory Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No.277, West Yanta Road, Xi'an, 710061, Shaanxi, People's Republic of China
| | - Lan Yang
- Department of Respiratory Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No.277, West Yanta Road, Xi'an, 710061, Shaanxi, People's Republic of China
| | - Manxiang Li
- Department of Respiratory Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, No.277, West Yanta Road, Xi'an, 710061, Shaanxi, People's Republic of China.
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Huang HT, Lu YL, Wang R, Qin HM, Wang CF, Wang JL, Xiang Y, Guo J, Lan Y, Wei YS. The association of IL-17A polymorphisms with IL-17A serum levels and risk of ischemic stroke. Oncotarget 2017; 8:103499-103508. [PMID: 29262579 PMCID: PMC5732745 DOI: 10.18632/oncotarget.21498] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 09/05/2017] [Indexed: 12/14/2022] Open
Abstract
The aim of our study was to investigate the association of interleukin-17A (IL-17A) polymorphisms with IL-17A serum levels and risk of ischemic stroke (IS) in a Chinese population. 392 IS patients and 443 controls were included in this study. The polymorphisms of IL-17A gene were determined by Snapshot SNP genotyping assay and DNA sequencing. Serum IL-17A levels were measured by enzyme-linked immunosorbent assay (ELISA). We found that the G allele, GA and GG genotypes, and GA/GG vs. AA model of rs2275913 polymorphism were associated with increased risk of IS even after adjusted by clinical characters such as age, gender and diabetes (G vs. A: OR=1.27, 95% CI, 1.05∼1.54, P=0.014; GA vs. AA: OR=1.72, 95% CI, 1.05∼2.81, P=0.032; GG vs. AA: OR=1.99, 95% CI, 1.08∼3.67, P=0.028; GA/GG vs. AA: OR=1.78, 95% CI, 1.11∼2.86, P=0.017). Serum IL-17A levels were increased in IS patients compared with controls (P<0.01). Individuals carrying rs2275913 GA or GG genotype present higher serum IL-17A levels compared with the rs2275913AA genotype in the IS group (P<0.01). In conclusion, this is the first study reporting the rs2275913 polymorphism as a risk factor for IS, which may be partly explained by influencing the levels of IL-17A cytokine.
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Affiliation(s)
- Hua-Tuo Huang
- Department of Clinical Laboratory, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Yu-Lan Lu
- Department of Clinical Laboratory, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Rong Wang
- Department of Clinical Laboratory, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Hai-Mei Qin
- Department of Clinical Laboratory, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Chun-Fang Wang
- Department of Clinical Laboratory, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Jun-Li Wang
- Department of Clinical Laboratory, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Yang Xiang
- Department of Clinical Laboratory, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Jing Guo
- Department of Dermatology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Yan Lan
- Department of Dermatology, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
| | - Ye-Sheng Wei
- Department of Clinical Laboratory, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China.,Youjiang Medical University for Nationalities, Baise 533000, Guangxi, China
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Korppi M, Teräsjärvi J, Liehu-Martiskainen M, Lauhkonen E, Vuononvirta J, Nuolivirta K, Kröger L, Pöyhönen L, Karjalainen MK, He Q. Haplotype of the Interleukin 17A gene is associated with osteitis after Bacillus Calmette-Guerin vaccination. Sci Rep 2017; 7:11691. [PMID: 28916742 PMCID: PMC5601914 DOI: 10.1038/s41598-017-12113-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 09/04/2017] [Indexed: 12/15/2022] Open
Abstract
Bacillus Calmette-Guerin (BCG) osteitis was more common in Finland than elsewhere at the time when universal BCG vaccinations were given to Finnish newborns. There is evidence that IL-17 plays a role in the defense against tuberculosis. The aim of this study was to evaluate the associations of IL17A rs4711998, IL17A rs8193036 and IL17A rs2275913 single-nucleotide polymorphisms (SNPs) with the risk of BCG osteitis after newborn vaccination. IL17A rs4711998, rs8193036 and rs2275913 SNPs were determined in 131 adults had presented with BCG osteitis after newborn BCG vaccination. We analyzed, using the HaploView and PLINK programs, whether allele or haplotype frequencies of these SNPs differ between the former BCG osteitis patients and Finnish population controls. Of the three IL17A SNPs studied, rs4711998 associated nominally with BCG osteitis; minor allele frequency was 0.215 in 130 BCG osteitis cases and 0.298 in 99 controls (p = 0.034). Frequency of the second common haplotype (GTA) differed significantly between BCG osteitis cases and controls (0.296 vs. 0.184, p = 0.040 after multi-testing correction). The GTA haplotype of the IL17A SNPs rs4711998, rs8193036 and rs2275913 was associated with osteitis after BCG vaccination.
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Affiliation(s)
- Matti Korppi
- Center for Child Health Research, University of Tampere and University Hospital, Tampere, Finland.
| | - Johanna Teräsjärvi
- Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland
| | - Milla Liehu-Martiskainen
- Center for Child Health Research, University of Tampere and University Hospital, Tampere, Finland
| | - Eero Lauhkonen
- Center for Child Health Research, University of Tampere and University Hospital, Tampere, Finland
| | - Juho Vuononvirta
- Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland
| | - Kirsi Nuolivirta
- Department of Pediatrics, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Liisa Kröger
- Department of Pediatrics, Kuopio University Hospital, Kuopio, Finland
| | - Laura Pöyhönen
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Minna K Karjalainen
- PEDEGO Research Unit and Medical Research Center Oulu, University of Oulu, Oulu, Finland.,Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
| | - Qiushui He
- Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland.,Department of Medical Microbiology, Capital Medical University, Beijing, China
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Yang AJ, Xi K, Yao YQ, Ding YX, Yang LJ, Cui H. Effect of Qingfei Mixture () on pediatric mycoplasma pneumoniae pneumonia with phlegm heat obstructing Fei (Lung) syndrome. Chin J Integr Med 2017; 23:681-688. [PMID: 28861888 DOI: 10.1007/s11655-017-2409-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To explore the effect and mechanism of Qingfei Mixture (), a Chinese medicine, in treating mycoplasma pneumonia (MP) in MP patients and rat model METHODS: A total of 46 MP children with phlegm heat obstructing Fei (Lung) syndrome were randomly assigned to two groups by the method of random number table, with 23 children in each group. The control group was treated with intravenous infusion of azithromycin; the treatment group received intravenous infusion of azithromycin and oral administration of Qingfei Mixture. The treatment course was 7 days. Major symptoms and minor symptoms were observed and scored before and after treatments. A rat model of MP was also established. A total of 120 wistar rats were randomly divided into 5 groups: a normal group, infection group, Qingfei Mixture treatment group, azithromycin treatment group, and Qingfei Mixture + azithromycin treatment group. Each group contained 24 rats, from which every 6 were euthanatized 1, 3, 7 and 14 days after infection. MP DNA in pulmonary tissue homogenates was detected using real-time fluorescence quantitative polymerase chain reaction. Pathology was assessed after hematoxylin (HE) staining and lung tissue pathology scores were determined in pulmonary tissue. Transmission electron microscopic detection and electronic image analysis were performed on lung tissue 3 days after infection. Interleukin (IL)-17 was detected in serum using enzymelinked immunosorbent assay (ELISA) 7 days after infection. RESULTS In the clinical study, both control and the treatment group showed improved results on removing symptoms of phlegm heat syndrome compared to the control group (P<0.05). In animal experiments, On the 7th day after MP infection, as detected by electron microscopy, the pulmonary capillary basement membranes of the azithromycin + Qingfei Mixture treatment group were much thinner than those of the azithromycin or Qingfei mixture treatment groups (P<0.05). The level of serum IL-17 in the azithromycin + Qingfei Mixture treatment group was lower than that in the azithromycin or Qingfei Mixture groups (P<0.01). CONCLUSION Both Qingfei Mixture and azithromycin have therapeutic effects on mycoplasma pneumoniae pneumonia, but the combination of both agents had the greatest effect.
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Affiliation(s)
- Ai-Jun Yang
- Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Kun Xi
- Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Yan-Qing Yao
- Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Ying-Xue Ding
- Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Li-Jun Yang
- Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Hong Cui
- Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China.
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Kim SK, Seok H, Park HJ, Han K, Kang SW, Ban JY, Jung HJ, Kim KI, Lee BJ, Kim J, Chung JH. Association Between Secretoglobin Family 3A Member 2 (SCGB3A2) Gene Polymorphisms and Asthma in a Korean Population. Med Sci Monit 2017; 23:1880-1885. [PMID: 28422086 PMCID: PMC5405786 DOI: 10.12659/msm.903983] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Background Secretoglobin family 3A member 2 (SCGB3A2) plays an important role in secreting lung surfactant protein, which is a downstream target of thyroid transcription factor. Material/Methods We investigated whether single-nucleotide polymorphisms (SNPs) of SCGB3A2 gene contribute to susceptibility to asthma. To explore this possible association, 2 promoter SNPs (rs6882292, 659 G/A and rs1368408, −112 G/A) and missense SNP (rs151333009, stop codon) were tested in SCGB3A2 gene in 101 asthma patients and 377 healthy control subjects. SNPStats was used to obtain odds ratio (OR), 95% confidence intervals (CI), and P value adjusted for age and sex as covariables. Logistic regression method in each model (dominant, recessive, and log-additive) was applied to analyze genetic data. Results rs151333009 SNP showed a monomorphic genotype. Two promoter SNPs (rs6882292, −659 G/A and rs1368408, −112 G/A) showed significant association with asthma (rs6882292, OR=2.66, 95% CI=1.42–5.01, p=0.0033 in dominant model, OR=2.45, 95% CI=1.33–4.54, p=0.0055 in log-additive model; rs1368408, OR=1.59, 95% CI=1.02–2.49, p=0.041 in dominant model, OR=3.02, 95% CI=1.15–7.90, p=0.03 in recessive model, OR=1.63, 95% CI=1.63, 95% CI=1.12–2.37, p=0.012 in log-additive model). Conclusions These results suggest that the promoter SNPs (rs6882292 and rs1368408) of SCGB3A2 gene may contribute to susceptibility to asthma in a Korean population.
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Affiliation(s)
- Su Kang Kim
- Kohwang Medical Research Institute, School of Medicine, Kyung Hee University, Seoul, South Korea
| | - Hosik Seok
- Department of Pharmacology, Graduate School, Kyung Hee University, Seoul, South Korea
| | - Hae Jeong Park
- Kohwang Medical Research Institute, School of Medicine, Kyung Hee University, Seoul, South Korea
| | - Kyuup Han
- Department of Pharmacology, Graduate School, Kyung Hee University, Seoul, South Korea
| | - Sang Wook Kang
- Department of Dental Pharmacology, School of Dentistry, Dankook University, Cheonan, South Korea
| | - Ju Yeon Ban
- Department of Dental Pharmacology, School of Dentistry, Dankook University, Cheonan, South Korea
| | - Hee-Jae Jung
- Division of Allergy and Respiratory System, Department of Korean Internal Medicine, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Kwan-Il Kim
- Division of Allergy and Respiratory System, Department of Korean Internal Medicine, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Beom-Joon Lee
- Division of Allergy and Respiratory System, Department of Korean Internal Medicine, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Jinju Kim
- Department of Korean Physiology, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - Joo-Ho Chung
- Kohwang Medical Research Institute, School of Medicine, Kyung Hee University, Seoul, South Korea
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Zhao DD, Yu DD, Ren QQ, Dong B, Zhao F, Sun YH. Association of vitamin D receptor gene polymorphisms with susceptibility to childhood asthma: A meta-analysis. Pediatr Pulmonol 2017; 52:423-429. [PMID: 27551963 DOI: 10.1002/ppul.23548] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 07/19/2016] [Accepted: 07/26/2016] [Indexed: 12/22/2022]
Abstract
BACKGROUND As for the association of vitamin D receptor (VDR) gene polymorphisms with susceptibility to pediatric asthma, results of published studies yielded conflicts. A systematic review was conducted on the relationship between childhood asthma and VDR gene polymorphisms, including ApaI (rs7975232), BsmI (rs1544410), FokI (rs2228570), and TaqI (rs731236). METHODS PubMed, Web of Science, CBM (Chinese Biomedical Database), CNKI (China National Knowledge Infrastructure), and Wanfang (Chinese) database were searched for relevant studies. Pooled odds ratios (OR) with 95% confidence interval (CI) were calculated. RESULTS Overall results suggested that there was a statistically significant association between ApaI polymorphism and childhood asthma in homozygote model (OR = 1.674, 95%CI = 1.269-2.208, P < 0.001) and allele model (OR = 1.221, 95%CI = 1.084-1.375, P = 0.001). Stratification by ethnicity revealed a statistical association in Asians (OR = 1.389, 95%CI = 1.178-1.638, P < 0.001). There was some evidence of an association between BsmI polymorphism and childhood asthma in the homozygote (OR = 1.462, 95%CI = 1.016-2.105, P = 0.041) and allele models (OR = 1.181, 95%CI = 1.006-1.386, P = 0.042). This association reached significance only in the Caucasian group (OR = 1.236, 95%CI = 1.029-1.485, P = 0.023). For FokI, a statistical association was detected in dominant model (OR = 1.281, 95%CI = 1.055-1.555, P = 0.012); this association was significant in allele model (OR = 1.591, 95%CI = 1.052-2.405, P = 0.028) in Caucasian. CONCLUSION ApaI polymorphism plays a particular role in childhood asthma in Asians. FokI polymorphism may be connected with pediatric asthma in Caucasian population. And BsmI polymorphism marginally contributes to childhood asthma susceptibility, while there might be no association between TaqI polymorphism and childhood asthma risk. Pediatr Pulmonol. 2017;52:423-429. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Dong-Dong Zhao
- Department of Epidemiology and Health Statistics, Anhui Medical University, Hefei, China
| | - Dan-Dan Yu
- Department of Epidemiology and Health Statistics, Anhui Medical University, Hefei, China
| | - Qiong-Qiong Ren
- Department of Epidemiology and Health Statistics, Anhui Medical University, Hefei, China
| | - Bao Dong
- Department of Epidemiology and Health Statistics, Anhui Medical University, Hefei, China
| | - Feng Zhao
- Department of Epidemiology and Health Statistics, Anhui Medical University, Hefei, China
| | - Ye-Huan Sun
- Department of Epidemiology and Health Statistics, Anhui Medical University, Hefei, China
- Centre for Evidence-Based Practice, Anhui Medical University, Hefei, China
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