Abstract
Background
Airway epithelial cells secrete Interleukin-33 in response to the different allergens. Several single nucleotide polymorphisms (SNP) of this cytokine have been reported to be involved in the development of asthma. We conducted this study to evaluate the impact of the two most common SNPs of the IL-33 gene (rs1342326 and rs3939286) and environmental factors on the susceptibility to asthma in the Iranian population.
Subjects and Methods
In this study, we enrolled 126 asthmatics patients and 300 age, sex-matched controls. Genotyping was performed by real-time PCR using the TaqMan SNP genotyping assay. Moreover, total serum IgE level, eosinophil count, and skin prick test were accomplished and complete history was taken from all the participants.
Results
The frequencies of mutant genotypes in both SNPs were significantly higher in asthmatics than controls. C/C genotype of rs1342326 [OR (95% CI) 2.50 (1.33–4.69)] and A/A genotype of rs3939286 [OR (95% CI) 2.18 (1.05–4.52)] were associated with higher risk of asthma development. While A/C+C/C genotype of rs1342326 was more prevalent in mild asthma [OR (95% CI) 2.36 (1.14–4.89)], G/A+A/A genotype of rs3939286 was associated with increased risk of moderate and severe asthma [OR (95% CI) 2.53 (1.30–4.94)].
Conclusion
This study revealed that both IL-33 SNPs were associated with an increased risk of asthma. The rs1342326 was associated with atopic, mild and adult-onset asthma and a higher level of eosinophils in peripheral blood. However, rs3939286 was more frequent in moderate and severe asthma. Moreover, rs3939286 was associated with non-atopic and childhood-onset asthma.
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References
de Benedictis D, Bush A (2017) Asthma in adolescence: is there any news? Pediatr Pulmonol 52(1):129–138. https://doi.org/10.1002/ppul.23498
Fazlollahi MR, Najmi M, Fallahnezhad M et al (2018) The prevalence of asthma in Iranian adults: the first national survey and the most recent updates. Clin Respir J 12(5):1872–1881. https://doi.org/10.1111/crj.12750
Masoli M, Fabian D, Holt S et al (2004) The global burden of asthma: executive summary of the GINA Dissemination Committee report. Allergy 59(5):469–478. https://doi.org/10.1111/j.1398-9995.2004.00526.x
Varmaghani M, Rashidian A, Kebriaeezadeh A et al (2017) National and sub-national prevalence, trend, and burden of asthma in Iran from 1990 to 2013; the study protocol. Arch Iran Med 17(12):804–809.
Liew FY, Girard JP, Turnquist HR (2016) Interleukin-33 in health and disease. Nat Rev Immunol 16(11):676–689. https://doi.org/10.1038/nri.2016.95
Khaitov MR, Gaisina AR, Shilovskiy IP et al (2018) The role of interleukin-33 in pathogenesis of bronchial asthma. New experimental data. Biochemistry (Mosc) 83(1):13–25. https://doi.org/10.1134/s0006297918010029
Moffatt MF, Gut IG, Demenais F et al (2010) A large-scale, consortium-based genomewide association study of asthma. N Engl J Med 363(13):1211–1221. https://doi.org/10.1056/NEJMoa0906312
Gudbjartsson DF, Bjornsdottir US, Halapi E et al (2009) Sequence variants affecting eosinophil numbers associate with asthma and myocardial infarction. Nat Genet 41(3):342–347. https://doi.org/10.1038/ng.323
Belpinati F, Malerba G, Trabetti E et al (2011) Association of childhood allergic asthma with markers flanking the IL33 gene in Italian families. J Allergy Clin Immunol 128(3):667–668. https://doi.org/10.1016/j.jaci.2011.05.004
Savenije OE, Mahachie John JM, Granell R et al (2014) Association of IL33-IL-1 receptor-like 1 (IL1RL1) pathway polymorphisms with wheezing phenotypes and asthma in childhood. J Allergy Clin Immunol 134(1):170–177. https://doi.org/10.1016/j.jaci.2013.12.1080
Kabata H, Moro K, Koyasu S et al (2015) Group 2 innate lymphoid cells and asthma. Allergol Int 64(3):227–234. https://doi.org/10.1016/j.alit.2015.03.004
Saglani S, Lui S, Ullmann N et al (2013) IL-33 promotes airway remodeling in pediatric patients with severe steroid-resistant asthma. J Allergy Clin Immunol 132(3):676–685.e13. https://doi.org/10.1016/j.jaci.2013.04.012
Li X, Ampleford EJ, Howard TD et al (2012) Genome-wide association studies of asthma indicate opposite immunopathogenesis direction from autoimmune diseases. J Allergy Clin Immunol 130(4):861–8.e7. https://doi.org/10.1016/j.jaci.2012.04.041
Melen E, Himes BE, Brehm JM et al (2010) Analyses of shared genetic factors between asthma and obesity in children. J Allergy Clin Immunol. https://doi.org/10.1016/j.jaci.2010.06.030
Bousquet J, Clark TJ, Hurd S et al (2007) GINA guidelines on asthma and beyond. Allergy 62(2):102–112. https://doi.org/10.1111/j.1398-9995.2006.01305.x
American Thoracic Society (1995) Single-breath carbon monoxide diffusing capacity (transfer factor). Recommendations for a standard technique—1995 update. Am J Respir Crit Care Med 152(6 Pt 1):2185–2198. https://doi.org/10.1164/ajrccm.152.6.8520796
Assarehzadegan MA, Shakurnia AH, Amini A (2013) Sensitization to common aeroallergens among asthmatic patients in a tropical region affected by dust storm. J Med Sci 13(7):592–597. https://doi.org/10.3923/jms.2013.592.597
Lung function protocol, data sheets and questionnaire (2014). https://www.ecrhs.org/quests.htm.
Adult and child asthma call-back surveys questionnaires (2006). https://www.cdc.gov/asthma/pdfs/surveyquestions06.pdf.
Miller SA, Dykes DD, Polesky HF (1988) A simple salting out procedure for extracting DNA from human nucleated cells. Nucleic Acids Res 16(3):1215.
Charrad R, Kaabachi W, Berraies A et al (2018) IL-33 gene variants and protein expression in pediatric Tunisian asthmatic patients. Cytokine 104:85–91. https://doi.org/10.1016/j.cyto.2017.09.028
Tulah AS, Holloway JW, Sayers I (2013) Defining the contribution of SNPs identified in asthma GWAS to clinical variables in asthmatic children. BMC Med Genet 14:100. https://doi.org/10.1186/1471-2350-14-100
Cayrol C, Girard JP (2018) Interleukin-33 (IL-33): a nuclear cytokine from the IL-1 family. Immunol Rev 281(1): 154–168. https://doi.org/10.1111/imr.12619
Cayrol C, Girard JP (2014) IL-33: an alarmin cytokine with crucial roles in innate immunity, inflammation and allergy. Curr Opin Immunol 31:31–37. https://doi.org/10.1016/j.coi.2014.09.004
Li Y, Wang W, Lv Z et al (2018) Elevated expression of IL-33 and TSLP in the airways of human asthmatics in vivo: a potential biomarker of severe refractory disease. J Immunol 200(7):2253–2262. https://doi.org/10.4049/jimmunol.1701455
Karta MR, Broide DH, Doherty TA (2016) Insights into group 2 innate lymphoid cells in human airway disease. Curr Allergy Asthma Rep 16(1):8. https://doi.org/10.1007/s11882-015-0581-6
Tan DJ, Walters EH, Perret JL et al (2015) Age-of-asthma onset as a determinant of different asthma phenotypes in adults: a systematic review and meta-analysis of the literature. Expert Rev Respir Med 9(1):109–123. https://doi.org/10.1586/17476348.2015.1000311
Peters SP (2014) Asthma phenotypes: nonallergic (intrinsic) asthma. J Allergy Clin Immunol Pract 2(6):650–652. https://doi.org/10.1016/j.jaip.2014.09.006
Schatz M, Rosenwasser L (2014) The allergic asthma phenotype. J Allergy Clin Immunol Pract 2(6):645–648. https://doi.org/10.1016/j.jaip.2014.09.004
Le Moual N, Zock JP, Dumas O et al (2018) Update of an occupational asthma-specific job exposure matrix to assess exposure to 30 specific agents. Occup Environ Med 75(7):507–514. https://doi.org/10.1136/oemed-2017-104866
Acknowledgements
The current study was supported by a grant (Grant Number 5232) from medical Faculty, Iran University of Medical Sciences, Tehran, Iran.
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Concept & Design: AMA, MM, RM. Data Collection and/or Processing: MM, RM, FM. Analysis and/or Interpretation: MM, RM, SF, SJS, JL. Writing: MM, SF, SJS, RM. Final approval: AMA, MM, RM, SF, SJS, FM, JL.
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Matloubi, M., Ranjbar, M., Assarehzadegan, MA. et al. The Impact of Interleukin (IL)-33 Gene Polymorphisms and Environmental Factors on Risk of Asthma in the Iranian Population. Lung 198, 105–112 (2020). https://doi.org/10.1007/s00408-019-00301-9
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DOI: https://doi.org/10.1007/s00408-019-00301-9