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Sleziak J, Gawor A, Błażejewska M, Antosz K, Gomułka K. ADAM33's Role in Asthma Pathogenesis: An Overview. Int J Mol Sci 2024; 25:2318. [PMID: 38396994 PMCID: PMC10889317 DOI: 10.3390/ijms25042318] [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: 01/15/2024] [Revised: 02/11/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Asthma is a complex chronic respiratory disease characterized by airway hyperresponsiveness, inflammation, and obstruction. Many genes have been identified as associated with asthma but none with such substantial significance as the ADAM33 gene due to its role in airway remodeling and bronchial hyperresponsiveness. This review summarizes the current knowledge on the genetic and functional aspects of ADAM33 in asthma pathogenesis. We highlight its genetic variants associated with asthma susceptibility and severity, as well as the functional effects of ADAM33 on airway remodeling, smooth muscle cell proliferation, and its interplay with environmental factors. Additionally, we discuss the potential clinical implications of ADAM33 as a therapeutic target for asthma management.
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Affiliation(s)
- Jakub Sleziak
- Student Research Group of Internal Medicine and Allergology, Wroclaw Medical University, 50-367 Wroclaw, Poland; (J.S.); (A.G.); (M.B.)
| | - Antoni Gawor
- Student Research Group of Internal Medicine and Allergology, Wroclaw Medical University, 50-367 Wroclaw, Poland; (J.S.); (A.G.); (M.B.)
| | - Marta Błażejewska
- Student Research Group of Internal Medicine and Allergology, Wroclaw Medical University, 50-367 Wroclaw, Poland; (J.S.); (A.G.); (M.B.)
| | - Katarzyna Antosz
- Student Research Group of Internal Medicine and Allergology, Wroclaw Medical University, 50-367 Wroclaw, Poland; (J.S.); (A.G.); (M.B.)
| | - Krzysztof Gomułka
- Department of Internal Medicine, Pneumology and Allergology, Wroclaw Medical University, 50-367 Wroclaw, Poland
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Association between ADAM33 Single-Nucleotide Polymorphisms and Treatment Response to Inhaled Corticosteroids and a Long-Acting Beta-Agonist in Asthma. Diagnostics (Basel) 2023; 13:diagnostics13030405. [PMID: 36766510 PMCID: PMC9914414 DOI: 10.3390/diagnostics13030405] [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: 12/08/2022] [Revised: 01/16/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
ADAM33 has been linked to airway structural changes in patients with asthma, leading to airway hyperresponsiveness, narrowing, and ultimately poor treatment responsiveness. This study aimed to evaluate the genetic association of ADAM33 SNPs with asthma, disease severity, and treatment responsiveness to ICS+LABA in the South Indian population. In this case-control study (486 controls and 503 cases), we performed genotyping using MassArray for six SNPs of ADAM33, namely rs2280091, rs2787094, rs3918396, rs67044, rs2853209, and rs3918392. We studied the association with asthma and treatment responsiveness to ICS+LABA, using genotype, allele frequency distribution, and haplotype analysis. A significant clinical finding of the study was that certain patients in the disease severity group (moderate and mild) showed poor or no improvement after a three-month follow-up of regular ICS+LABA therapy. Of the studied ADAM33 SNPs, rs2853209 showed an association with asthma. The further analysis of asthma patients according to disease severity suggested an association between moderate disease and the minor allele "T" for rs2853209. The homozygous minor allele of SNP rs2787094 was found to be associated with poorer lung function and the least lung-function improvement after three months of ICS+LABA therapy. The haplotype analysis of six SNPs showed a significant association between the rs2853209 and rs3918396 blocks and asthma. ADAM33 gene polymorphism has clinical relevance in terms of disease association and response to treatment. SNP rs2853209 seemed most relevant to asthma, and SNP rs2787094 could be a genetic marker for predicting response to ICS+LABA therapy in the study population.
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Sahu A, Swaroop S, Kant S, Banerjee M. Signatures for chronic obstructive pulmonary disease (COPD) and asthma: a comparative genetic analysis. Br J Biomed Sci 2021; 78:177-183. [PMID: 33740392 DOI: 10.1080/09674845.2021.1905988] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background: Chronic obstructive pulmonary disease (COPD) and asthma are obstructive lung diseases which progress in severity with time. Environmental causes and genetic makeup of individuals play important roles in disease manifestation. The aim of present study was to search for diagnostic/prognostic biomarkers to differentiate COPD and asthma.Materials and methods: Seven ADAM33 and two AQP5 single-nucleotide polymorphisms (SNPs) were genotyped by polymerase chain reaction-restriction fragment length polymorphism method. The association of genotypes, haplotypes and allelic combination of variants in different genes was analyzed in 194 COPD, 150 asthma patients and 220 controls.Results: The genotype frequencies of SNPs V4(C/G), T1(T/C), S2(G/C) of ADAM33 and AQP5 A/G (rs3736309) were associated with COPD and asthma (P=0.038 to P<0.001), while S1(A/G) and F+1(C/T) were associated with asthma (both P<0.001) and V1(G/T) with 20 COPD (P<0.001). The allele frequencies of V4(C/G) (both P<0.001), V1(G/T) (both P<0.05), S2(G/C) (both P<0.01) and S1(A/G) (both P<0.05) were associated with COPD and asthma, while F+1(C/T) was associated only with asthma (P=0.005). Haplotypes of ADAM33 'GGTGGGT' (P=0.027), 'CGTCGGC' (P<0.001) and AQP5 'GA' and 'AG' (both P<0.001) were significant only in COPD.Conclusion: ADAM33 F+1(C/T) variant and allele combination 'GGTGGGTGA' may be specific markers for asthma, while AQP5 'AG' appeared as a haplotype associated only with COPD. These specific genetic biomarkers may be exploited to predict individual predisposition to COPD and asthma.
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Affiliation(s)
- A Sahu
- Molecular and Human Genetics Laboratory, Department of Zoology, University of Lucknow, Lucknow, India
| | - S Swaroop
- Experimental and Public Health Laboratory, Department of Zoology, University of Lucknow, Lucknow, India
| | - S Kant
- Department of Respiratory Medicine, King George's Medical University, Lucknow, India
| | - M Banerjee
- Molecular and Human Genetics Laboratory, Department of Zoology, University of Lucknow, Lucknow, India
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Zihlif M, Imraish A, Al-Rawashdeh B, Qteish A, Husami R, Husami R, Tahboub F, Jarrar Y, Lee SJ. The Association of IgE Levels with ADAM33 Genetic Polymorphisms among Asthmatic Patients. J Pers Med 2021; 11:jpm11050329. [PMID: 33922216 PMCID: PMC8146671 DOI: 10.3390/jpm11050329] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 02/11/2021] [Accepted: 04/20/2021] [Indexed: 11/16/2022] Open
Abstract
Total serum immunoglobulin E (IgE) is elevated in multiple allergic diseases and is considered a good predictor of atopy. Several studies have been performed on the association of IgE levels with the polymorphism of the ADAM33 gene in asthmatic patients. The aim of this study was to determine whether there is an association between IgE levels and the genetic polymorphisms of the ADAM33 gene (T1, T2, T + 1, V4, S1, S2, and Q-1) in both healthy and asthmatic patients among Jordanians. The clinical data were collected for this case–control study from 267 asthmatic patients and 225 control subjects. Seven genetic polymorphisms (T1, T2, T + 1, V4, S1, S2, and Q-1) of the gene ADAM33 were analyzed using the polymerase chain reaction/restriction fragment length polymorphism method. The minor alleles (G) of T1, (A) of T2, T + 1, and (G) of V4 polymorphisms were associated with a significant increase in total serum IgE levels in adults but not children. The V4 genetic polymorphism, however, showed a significant association with IgE levels in both adults and children. The S1 polymorphism was significantly associated with the codominant module only in the adults. The S2 polymorphism showed a significant association (p-value < 0.05) in both codominant and recessive models. However, in the dominant model for both pediatric control and asthmatic patients, the association between the IgE and S2 polymorphism was insignificant (p-value = 0.7271 and 0.5259, respectively). This study found a statistically significant association between multiple ADAM33 genetic polymorphisms and IgE levels. Such findings add to the growing evidence that the ADAM33 gene has a major impact on IgE levels among asthmatic patients of Jordanian origin.
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Affiliation(s)
- Malek Zihlif
- Department of Pharmacology, Faculty of Medicine, The University of Jordan, Amman 11942, Jordan;
- Correspondence: ; Tel.: +962-795-518-929
| | - Amer Imraish
- Department of Biology, Faculty of Science, The University of Jordan, Amman 11942, Jordan;
| | - Baeth Al-Rawashdeh
- Department of Special Surgery, Faculty of Medicine, The University of Jordan, Amman 11942, Jordan; (B.A.-R.); (A.Q.); (R.H.); (R.H.)
| | - Aya Qteish
- Department of Special Surgery, Faculty of Medicine, The University of Jordan, Amman 11942, Jordan; (B.A.-R.); (A.Q.); (R.H.); (R.H.)
| | - Raihan Husami
- Department of Special Surgery, Faculty of Medicine, The University of Jordan, Amman 11942, Jordan; (B.A.-R.); (A.Q.); (R.H.); (R.H.)
| | - Rawand Husami
- Department of Special Surgery, Faculty of Medicine, The University of Jordan, Amman 11942, Jordan; (B.A.-R.); (A.Q.); (R.H.); (R.H.)
| | - Farah Tahboub
- Department of Pharmacology, Faculty of Medicine, The University of Jordan, Amman 11942, Jordan;
| | - Yazun Jarrar
- Department of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan;
| | - Su-Jun Lee
- Department of Pharmacology, College of Medicine, Inje University, Busan 50834, Korea;
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Vishweswaraiah S, Ramachandra NB, Jayaraj BS, Holla AD, Chakraborty S, Agrawal A, Mahesh PA. Haplotype analysis of ADAM33 polymorphisms in asthma: A pilot study. Indian J Med Res 2020; 150:272-281. [PMID: 31719298 PMCID: PMC6886134 DOI: 10.4103/ijmr.ijmr_698_17] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Background & objectives ADAM33 is implicated as a potentially strong candidate gene for asthma and bronchial hyper-responsiveness. Many polymorphisms of ADAM33 have been studied along with ADAM33 expression in various cells of the lungs. Haplotype analysis also showed association with asthma in different populations across the world. Therefore, the aim of this study was to perform a comprehensive screening of ADAM33 polymorphisms in adult patients with asthma. Methods Thirty five polymorphisms of ADAM33 were genotyped in 55 patients with asthma and 53 controls. The association of single nucleotide polymorphisms (SNPs) and haplotypes with phenotypes of asthma was analysed. Results The genotype, minor allele frequency, odds ratio and Hardy-Weinberg equilibrium did not show any significant difference among cases and controls. No association was found between SNPs of ADAM33 with the severity of asthma. Correlation analysis of ADAM33 SNPs to the phenotypes, based on clinical variables and allergen sensitization, did not show significant difference. Haplotype analysis showed that rs2280090 and rs2280091 were associated with asthma in the patient group. Interpretation & conclusions Haplotype analysis showed an association of the two SNP variations with asthma. These SNPs lead to amino acid change and are prone to phosphorylation, which may affect expression levels and protein function of ADAM33 and asthma susceptibility.
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Affiliation(s)
- Sangeetha Vishweswaraiah
- Department of Studies in Genetics & Genomics, Genetics & Genomics Lab, University of Mysore, Mysuru, Karnataka, India
| | - Nallur B Ramachandra
- Department of Studies in Genetics & Genomics, Genetics & Genomics Lab, University of Mysore, Mysuru, Karnataka, India
| | - B S Jayaraj
- Department of Respiratory Medicine, JSS Medical College, JSS Academy of Higher Education and Research, Mysuru, Karnataka, India
| | | | - Samarpana Chakraborty
- Center of Excellence, Translational Research in Asthma & Lung Disease, CSIR-Institute of Genomics & Integrative Biology, Delhi, India
| | - Anurag Agrawal
- Center of Excellence, Translational Research in Asthma & Lung Disease, CSIR-Institute of Genomics & Integrative Biology, Delhi, India
| | - Padukudru A Mahesh
- Department of Respiratory Medicine, JSS Medical College, JSS Academy of Higher Education and Research, Mysuru, Karnataka, India
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Li HF, Yan LP, Wang K, Li XT, Liu HX, Tan W. Association between ADAM33 polymorphisms and asthma risk: a systematic review and meta-analysis. Respir Res 2019; 20:38. [PMID: 30791911 PMCID: PMC6385425 DOI: 10.1186/s12931-019-1006-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 02/13/2019] [Indexed: 02/06/2023] Open
Abstract
Background Asthma is a common complex chronic, inflammatory polygenic disease with heterogeneous manifestations, affecting individuals of all age groups and posing an immense burden on healthcare resources. A number of studies have identified the association between a disintegrin and metalloprotease 33 (ADAM33) polymorphisms and asthma risk, however, the results still remain inconclusive. The objective of the present study was to identify the effect of ADAM33 variants in asthma susceptibility. Methods Eligible case-control studies published between January 2000 and June 2018 was searched and retrieved from online electronic databases. The odds ratio (OR) with its 95% confidence interval (CI) was employed to calculate the effect. Results A total of 63 case-control studies were finally screened out, including 13,280 asthma patients and 13,340 controls. Eleven SNPs of ADAM33 gene were identified. Our results detected a significant association between ADAM33 T2, Q1, F + 1 and AA genotype of T + 1 polymorphisms and asthma risk in total population. Subgroup analysis by ethnicities showed that the alleles and genotypes of T2, Q1 and F + 1 polymorphisms were associated with asthma susceptibility among Asian populations, while V4 polymorphism was associated with asthma among Caucasian populations. Subgroup analysis by ages showed that T2, F + 1 and ST + 4 polymorphisms were associated with childhood asthma, while Q1 and V4 polymorphisms were associated with asthma risk in adults. Subgroup analysis by asthma severity showed that only the G allele of ADAM33 T1 polymorphism was associated with the severity of asthma when compared with the controls. In addition, T2, Q1 and F + 1 polymorphisms of ADAM33 were significantly associated with increased the asthma risk in Chinese asthma patients. Conclusions Our results found that T2, Q1 and F + 1 polymorphisms of ADAM33 gene might contribute to asthma risk. Future well-designed case-control studies with large population and more ethnicities are still needed to estimate the association.
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Affiliation(s)
- Hui-Fang Li
- Postgraduate Department of Internal Medicine, Weifang Medical University, Weifang, 261053, China
| | - Li-Ping Yan
- Department of Human Resource Department, Weifang People's Hospital, Weifang, 261041, China
| | - Kun Wang
- Department of Respiratory Medicine, Weifang People's Hospital, Weifang, 261041, Shandong, China
| | - Xiao-Tong Li
- Postgraduate Department of Internal Medicine, Weifang Medical University, Weifang, 261053, China
| | - Hai-Xian Liu
- Department of Respiratory Medicine, Weifang People's Hospital, Weifang, 261041, Shandong, China
| | - Wei Tan
- Department of Respiratory Medicine, Weifang People's Hospital, Weifang, 261041, Shandong, China.
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Zhu S, Li P, Suo H, Dong J, Cui L. Association of ADAM33 gene polymorphisms with asthma in Mongolian and Han groups in Inner Mongolia. Saudi J Biol Sci 2018; 25:1795-1799. [PMID: 30591802 PMCID: PMC6303168 DOI: 10.1016/j.sjbs.2018.08.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 08/15/2018] [Accepted: 08/16/2018] [Indexed: 10/28/2022] Open
Abstract
Polymorphisms in the gene encoding for A disintegrin and metalloprotease 33 (ADAM33) are closely associated with the risk of bronchial asthma attacks in different populations. We collected blood samples from 248 asthma patients - 130 of the Han ethnic group and 118 of the Mongolian ethnic group - living in the Inner Mongolia region of China, and analyzed the single nuclear polymorphisms (SNPs) of the T1, T2 and V4 loci of the ADAM33 gene using PCR-RFLP (restriction fragment length polymorphism). In addition, we also tested 256 healthy controls (134 and 122 from the Han and Mongolian ethnic groups respectively) for the same SNPs. Three genotypes of the T1, T2 and V4 loci were predominantly detected: while polymorphisms in the T1 locus were significantly associated with asthma risk in both Mongolian and Han ethnicities (P < 0.05, ∗P < 0.05), that in the V4 locus were relevant only in the Mongolian patients (P < 0.05, ∗P > 0.05). In contrast, polymorphisms in the T2 locus showed no significant association with asthma risk in either ethnic group (P > 0.05, ∗P > 0.05).
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Affiliation(s)
- Shufen Zhu
- Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010011, China
| | - Pengfei Li
- Inner Mongolia Autonomous Region People's Hospital, Hohhot 010011, China
| | - Hong Suo
- Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010011, China
| | - Jingsheng Dong
- Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010011, China
| | - Liying Cui
- Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010011, China
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Saba N, Yusuf O, Rehman S, Munir S, Noor A, Saqlain M, Mansoor A, Raja GK. Single nucleotide polymorphisms in asthma candidate genes TBXA2R, ADAM33 FCER1B and ORMDL3 in Pakistani asthmatics a case control study. Asthma Res Pract 2018; 4:4. [PMID: 29588858 PMCID: PMC5863901 DOI: 10.1186/s40733-018-0039-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 03/05/2018] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Genetic variations in different loci and genes are important in asthma pathogenesis. There is much importance of various immunological pathways in the IgE secretion regulation. Alterations in any main part of these pathways can increase the risk of asthma development. Polymorphisms in these genetic markers can effect certain pathways which predict the asthma susceptibility. In the present study, SNPs directly or indirectly affecting the immunological process pathways are selected. METHODS This study was conducted to determine association of 16 SNPs in 10 candidate genes with asthma in Pakistani population in 333 asthmatic cases and 220 healthy controls. Genotyping was performed using the Sequenom Mass ARRAY iPLEX platform (14 SNPs) and TaqMan assay (2 SNPs). RESULTS The minor allele at two of the SNPs showed association with protection from asthma, rs1131882 in TBXA2R gene (OR 0.73, 95% CI 0.52-1.01, P = 0.05) and rs2280091 in the ADAM33 gene (OR 0.69, 95% CI 0.50-0.97, P = 0.03). For FCER1B gene, rs2583476 the asthmatic male gender had higher TT genotype counts as compared to controls (OR = 1.86, 95% CI = 1.09-3.17, p = 0.01). In rs11650680 of ORMDL3 gene the CT genotype is more prevalent in female asthma cases in comparison with female controls (OR = 1.99, 95% CI = 1.02-3.89, p = 0.03). CONCLUSIONS This data suggests that variations at TBXA2R and ADAM33 genes are found to be associated with asthma susceptibility in Pakistan. FCER1B gene is associated with male and ORMDL3 in female asthmatics. These genetic markers can be important source of asthma risk in Pakistani population.
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Affiliation(s)
- Nusrat Saba
- Institute of Biomedical and Genetic Engineering, G-9/1, Islamabad, Pakistan
- Department of Biochemistry, Pir Mehar Ali Shah Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Osman Yusuf
- The Allergy and Asthma Institute of Pakistan, 275, Gomal Road, Islamabad, E-7 Pakistan
| | - Sadia Rehman
- Institute of Biomedical and Genetic Engineering, G-9/1, Islamabad, Pakistan
| | - Saeeda Munir
- Institute of Biomedical and Genetic Engineering, G-9/1, Islamabad, Pakistan
| | - Amna Noor
- Rawalpindi Medical College, Rawalpindi, Pakistan
| | - Muhammad Saqlain
- Department of Biochemistry, Pir Mehar Ali Shah Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Atika Mansoor
- Institute of Biomedical and Genetic Engineering, G-9/1, Islamabad, Pakistan
| | - Ghazala Kaukab Raja
- Department of Biochemistry, Pir Mehar Ali Shah Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
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Karaca S, Civelek E, Karaca M, Sahiner UM, Ozgul RK, Kocabas CN, Polimanti R, Sekerel BE. Allergy-specific Phenome-Wide Association Study for Immunogenes in Turkish Children. Sci Rep 2016; 6:33152. [PMID: 27624002 PMCID: PMC5021980 DOI: 10.1038/srep33152] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 08/10/2016] [Indexed: 01/06/2023] Open
Abstract
To dissect the role of immunogenetics in allergy and asthma, we performed a phenome-wide association study in 974 Turkish children selected from a cross-sectional study conducted using ISAAC (International Study of Asthma and Allergies in Children) Phase II tools. We investigated 9 loci involved in different immune functions (ADAM33, ADRB2, CD14, IL13, IL4, IL4R, MS4A2, SERPINE1, and TNF) with respect to 116 traits assessed through blood tests, hypertonic saline challenge tests, questionnaires, and skin prick tests. Multiple associations were observed for ADAM33: rs2280090 was associated with reduced MEF240% (i.e., the ratio of Mean Expiratory Flow after 240s of hypertonic saline inhalation with respect to the age- and ancestry-matched reference value) and with an increased risk of allergic bronchitis (p = 1.77*10−4 and p = 7.94*10−4, respectively); rs3918396 was associated with wheezing and eczema comorbidity (p = 3.41*10−4). IL4 rs2243250 was associated with increased FEV240 (Forced Expiratory Flow Volume after 240s of hypertonic saline inhalation; p = 4.81*10−4) and CD14 rs2569190 was associated with asthma diagnosis (p = 1.36*10−3). ADAM33 and IL4 appeared to play a role in the processes linked to allergic airway inflammation and lung function. Due to its association with wheezing and eczema comorbidity, ADAM33 may also be involved in the atopic march.
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Affiliation(s)
- Sefayet Karaca
- Aksaray University, Faculty of Health Science, Aksaray, Turkey
| | - Ersoy Civelek
- Ankara Child Health and Diseases Hematology Oncology Research Hospital, Pediatric Allergy and Immunology Clinic, Ankara, Turkey
| | - Mehmet Karaca
- Aksaray University, Faculty of Science and Arts, Department of Biology, Aksaray, Turkey
| | - Umit M Sahiner
- Hacettepe University, Faculty of Medicine, Pediatric Allergy and Asthma Unit, Ankara, Turkey
| | - Riza K Ozgul
- Hacettepe University, Faculty of Medicine, Pediatrics Department, Unit of Metabolism and Institute of Child Health, Ankara, Turkey
| | - Can N Kocabas
- Ankara Child Health and Diseases Hematology Oncology Research Hospital, Pediatric Allergy and Immunology Clinic, Ankara, Turkey
| | - Renato Polimanti
- Department of Psychiatry, Yale University School of Medicine and VA CT Healthcare Center, West Haven, CT, United States
| | - Bülent E Sekerel
- Hacettepe University, Faculty of Medicine, Pediatric Allergy and Asthma Unit, Ankara, Turkey
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10
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Fan JG, Wang ZA, Zhao HX. The ADAM33 S2 polymorphism is associated with susceptibility to pediatric asthma in the Chinese Han population. Genet Test Mol Biomarkers 2015; 19:573-8. [PMID: 26291893 DOI: 10.1089/gtmb.2014.0332] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The disintegrin and metalloprotease domain containing protein 33 (ADAM33) is a novel susceptibility gene for asthma and airway hyperresponsiveness, particularly in the Asian population. We investigated the influence of ADAM33 polymorphisms on the serum levels of ADAM33 and the susceptibility to pediatric asthma in the Chinese Han population. METHODS Polymerase chain reaction-restriction fragment length polymorphism analysis was employed to study the genotypic distribution of F+1, T1, and S2 in ADAM33 in a cohort of 120 pediatric asthma patients and 105 healthy controls. The serum levels of secreted ADAM33 protein were measured in all the study subjects using the enzyme-linked immunosorbent assay (ELISA). RESULTS This case-control study showed that the distribution of F+1 and T1 genotypes of ADAM33 was not significantly different between pediatric asthma patients and healthy controls (p > 0.05); however, the genotype and allele frequencies of the S2 polymorphism were significantly different between asthmatic patients and healthy controls (both p < 0.05). In addition, the frequency of CGC and CGG haplotypes exhibited statistically significant differences, with lower CGC and higher CGG frequencies found in the case group compared to the control group. Finally, in comparison to healthy controls, the serum levels of ADAM33 protein were significantly lower in patients carrying the S2 polymorphism. CONCLUSION Our results provide evidence that the ADAM33 S2 polymorphism is associated with increased susceptibility to pediatric asthma and that the CGG haplotype for the F+1, T1, and S2 polymorphisms is associated with an elevated risk of pediatric asthma in the Han population, whereas the CGC haplotype appears to confer a protective effect. Our results may prove useful for population-based screening to affect early intervention.
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Affiliation(s)
- Jin-Gang Fan
- Department of Pediatric Internal Medicine, Linyi People's Hospital , Linyi, Shandong, People's Republic of China
| | - Zhao-An Wang
- Department of Pediatric Internal Medicine, Linyi People's Hospital , Linyi, Shandong, People's Republic of China
| | - Hong-Xiang Zhao
- Department of Pediatric Internal Medicine, Linyi People's Hospital , Linyi, Shandong, People's Republic of China
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Berenguer AG, Fernandes AT, Oliveira S, Rodrigues M, Ornelas P, Romeira D, Serrão T, Rosa A, Câmara R. Genetic polymorphisms and asthma: findings from a case-control study in the Madeira island population. Biol Res 2014; 47:40. [PMID: 25299150 PMCID: PMC4167518 DOI: 10.1186/0717-6287-47-40] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 08/27/2014] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Asthma is a complex disease influenced by multiple genetic and environmental factors. While Madeira has the highest prevalence of asthma in Portugal (14.6%), the effect of both genetic and environmental factors in this population has never been assessed. We categorized 98 asthma patients according to the Global Initiative for Asthma (GINA) guidelines, established their sensitization profile, and measured their forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC) indexes. Selected single nucleotide polymorphisms (SNPs) were analysed as potential markers for asthma susceptibility and severity in the interleukin 4 (IL4), interleukin 13 (IL13), beta-2-adrenergic receptor (ADRB2), a disintegrin and metalloprotease 33 (ADAM33), gasdermin-like (GSDML) and the signal transducer and activator of transcription 6 (STAT6) genes comparatively to a population reference set. RESULTS Although mites are the major source of allergic sensitization, no significant difference was found amongst asthma severity categories. IL4-590*CT/TT and IL4-RP2*253183/183183 were found to predict the risk (2-fold) and severity (3 to 4-fold) of asthma and were associated with a lower FEV1 index. ADRB2-c.16*AG is a risk factor (3.5-fold), while genotype GSDML-236*TT was protective (4-fold) for moderate-severe asthma. ADAM33-V4*C was associated to asthma and mild asthma by the transmission disequilibrium test (TDT). Finally, ADAM33-V4*CC and STAT6-21*TT were associated with higher sensitization (mean wheal size ≥10 mm) to house dust (1.4-fold) and storage mite (7.8-fold). CONCLUSION In Madeira, IL4-590C/T, IL4-RP2 253/183, GSDML-236C/T and ADAM33-V4C/G SNPs are important risk factors for asthma susceptibility and severity, with implications for asthma healthcare management.
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Affiliation(s)
- Anabela Gonçalves Berenguer
- Human Genetics Laboratory, University of Madeira, Funchal, 9000-390, Portugal.
- Department of Computer Science and Engineering, University of Oulu, PL 4500, Oulu, 90014, Finland.
| | | | - Susana Oliveira
- Immunoalergology Unit, Dr. Nélio Mendonça Hospital, SESARAM, E.P.E, Funchal, Portugal.
| | - Mariana Rodrigues
- Unit of Statistics, Dr. Nélio Mendonça Hospital, SESARAM, E.P.E, Funchal, Portugal.
| | - Pedro Ornelas
- Immunoalergology Unit, Dr. Nélio Mendonça Hospital, SESARAM, E.P.E, Funchal, Portugal.
| | - Diogo Romeira
- Immunoalergology Unit, Dr. Nélio Mendonça Hospital, SESARAM, E.P.E, Funchal, Portugal.
| | - Tânia Serrão
- Immunoalergology Unit, Dr. Nélio Mendonça Hospital, SESARAM, E.P.E, Funchal, Portugal.
| | - Alexandra Rosa
- Human Genetics Laboratory, University of Madeira, Funchal, 9000-390, Portugal.
- Medical Sciences Unit, Center of Life Sciences, University of Madeira, Funchal, 9000-390, Portugal.
| | - Rita Câmara
- Immunoalergology Unit, Dr. Nélio Mendonça Hospital, SESARAM, E.P.E, Funchal, Portugal.
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Karimi MRZ, Faridhosseini R, Abbaszadegan MR, azad FJ, Shirkani A, Riyahi A, Montazar M, Gholamin M. Association of ADAM33 gene polymorphisms with allergic asthma. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2014; 17:716-21. [PMID: 25691950 PMCID: PMC4322157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 01/28/2014] [Indexed: 11/21/2022]
Abstract
OBJECTIVES Asthma results from the interaction between genetic and environmental factors. ADAM33 gene on chromosome 20p13 is associated with asthma and airway hyperresponsiveness. MATERIALS AND METHODS This is a case-control study, where four SNPs S1 (rs3918396), T1 (rs2280091), T2 (rs2280090), V4 (rs2787094) of ADAM33 gene have been assessed in patients with allergic asthma and normal controls (95 patients and 86 normal). Blood samples of these participants have been genotyped by PCR and the RFLP method. RESULTS There was no association between asthmatic patients and polymorphisms of alleles, genotypes and haplotypes of the ADAM33 gene. When categorizing the asthmatic patients in severe, moderate and mild groups, associations in the subcategories of asthmatic patients were found. There were associations between polymorphisms of C allele of T1 SNP with severe asthmatic patients and G allele of V4 SNP with moderate asthmatics respectively (P=0.006, P=0.01). There was a significant association between sensitivity to mite and polymorphism of C allele of T1 SNP (P=0.02). Besides, there was a significant association between sensitivity to weeds and genotype GG of V4 SNP (P=0.05). CONCLUSION Polymorphisms of ADAM33 gene might be associated with severe asthma and sensitivity to aeroallergens in northeast of Iran, but further studies are needed to determine the polymorphisms in this area and other regions of our country.
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Affiliation(s)
| | - Reza Faridhosseini
- Allergy Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Reza Abbaszadegan
- Division of Human Genetics, Immunology Research Center, Avicenna Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farrahzad Jabbari azad
- Allergy Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Afshin Shirkani
- Bushehr University of Medical Science, School of Medicine. Allergy and clinical Immunology. Department, Bushehr, Iran
| | - Anali Riyahi
- Division of Human Genetics, Immunology Research Center, Avicenna Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Montazar
- Department of Pathology, Omid Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehran Gholamin
- Division of Human Genetics, Immunology Research Center, Avicenna Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran,Corresponding author: Mehran Gholamin. Division of Human Genetics, Immunology Research Center, Avicenna Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran. Bu-Ali Sq., Mashhad, Khorasan Razavi, Iran. Tel/Fax: +98-51-37112343;
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Li H, Li Y, Zhang M, Xu G, Feng X, Xi J, Zhao B. Associations of genetic variants in ADAM33 and TGF-β1 genes with childhood asthma risk. Biomed Rep 2014; 2:533-538. [PMID: 24944803 DOI: 10.3892/br.2014.280] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 04/22/2014] [Indexed: 01/19/2023] Open
Abstract
The aim of the present study was to explore the associations of genetic variants in the ADAM33 and TGF-β1 genes with the risk of childhood asthma. A total of 299 asthmatic children and 311 healthy controls were recruited in the hospital-based case-control study. The asthmatic subjects were further divided into mild and severe groups according to disease severity. Single-nucleotide polymorphisms (SNP) at ADAM33 V4, T2, S2 and T1, and TGF-β1 C-509T and T869C were selected and detected with PCR-RFLP. The associations of the SNPs with asthma risk and severity were analyzed. The associations between the haplotypes of ADAM33 and TGF-β1 were also evaluated. Compared with the GG genotype, the GC and CC genotypes at V4 were associated with an increased asthma risk in children and the ORs were 2.92 and 10.56, respectively. Compared with the CC genotype, the CT/TT genotype at C-509T was associated with an increased asthma risk and the OR was 2.26. Subsequent to stratification by asthma severity, compared with the V4 GG genotype, it was found that the CG and CC genotypes were associated with a mild asthma risk and the ORs were 3.00 and 5.99, respectively. The SNP at C-509T (CT/TT vs. CC) was associated with mild asthma (OR=2.34), whereas a marginally significant association was detected between the SNP (CT/TT vs. CC) and severe asthma risk (OR=2.19). The haplotype analysis revealed that, compared with the GGCA haplotype of ADAM33, significant associations of the haplotypes of CGCG, CGGA, GACA, GACG and GAGA with asthma risk were observed, and the ORs were 31.12, 12.24, 4.73, 30.85 and 4.83, respectively. No significant association was detected between the TGF-β1 haplotypes and asthma risk. The genetic variants at V4 and C-509T had the potential to modify the childhood asthma risk and the associations showed no notable difference with the disease severity. Thus, ADAM33 haplotypes provided more useful information in the prediction of asthma risk.
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Affiliation(s)
- Hongbin Li
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Yuchun Li
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Mingwu Zhang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, P.R. China
| | - Guangchui Xu
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Xianjun Feng
- Department of Respiratory Medicine, The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Jingzhuan Xi
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Bing Zhao
- Department of Respiration, Zhumadian Munipical Central Hospital, Zhumadian, Henan 463000, P.R. China
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Chen RX, Lu WM, Zhu LP, Lu MP, Wang ML, Wang YL, Chen XY, Zhu XJ, Yin M, Zhang ZD, Cheng L. Association study on ADAM33 polymorphisms in mite-sensitized persistent allergic rhinitis in a Chinese population. PLoS One 2014; 9:e95033. [PMID: 24751681 PMCID: PMC3994017 DOI: 10.1371/journal.pone.0095033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2012] [Accepted: 03/23/2014] [Indexed: 02/04/2023] Open
Abstract
Background The ADAM33 gene has been identified as a potentially important asthma candidate gene and polymorphisms in this gene have been shown to be associated with asthma and seasonal allergic rhinitis. Objective To assess whether the ADAM33 polymorphisms are associated with persistent allergic rhinitis (PER) due to house dust mites in a Chinese population. Methods In a hospital-based case-control study of 515 patients with mite-sensitized PER and 495 healthy controls, we genotyped seven single nucleotide polymorphisms (SNPs) in ADAM33. Serum levels of eosinophil cationic protein, total IgE and allergen-specific IgE against Dermatophagoides pteronyssinus and Dermatophagoides farinae were measured by the ImmunoCAP assays. Results In the single-locus analysis, three polymorphisms, rs3918392 (F1), rs528557 (S2) and rs2787093, were significantly associated with mite-sensitized PER. SNP S2 was associated with significantly increased risk both of asthmatic and nonasthmatic mite-sensitized PER. In the combined genotypes analysis, individuals with 2–4 risk alleles had a significantly higher risk of mite-sensitized PER (adjusted OR = 1.99, 95% CI = 1.50–2.62) than those with 0–1 risk alleles. Haplotype-based association analysis revealed that the ACAGCCT haplotype might have potential to protect against mite-sensitized PER (adjusted OR = 0.67; 95% CI = 0.49–0.90). Conclusions Polymorphisms in the ADAM33 gene may contribute to susceptibility of mite-sensitized PER in this Chinese population.
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Affiliation(s)
- Ruo-Xi Chen
- Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Wen-Min Lu
- Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Lu-Ping Zhu
- Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Mei-Ping Lu
- Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Mei-Lin Wang
- Department of Molecular and Genetic Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yun-Li Wang
- Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Xin-Yuan Chen
- Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Xin-Jie Zhu
- Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Min Yin
- Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
- International Centre for Allergy Research, Nanjing Medical University, Nanjing, China
| | - Zheng-Dong Zhang
- Department of Molecular and Genetic Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Lei Cheng
- Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing, China
- International Centre for Allergy Research, Nanjing Medical University, Nanjing, China
- * E-mail:
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15
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Need for revising data in the recent meta-analysis of ADAM33 polymorphisms and asthma risk. Gene 2013; 536:449-50. [PMID: 24334126 DOI: 10.1016/j.gene.2013.11.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 11/30/2013] [Indexed: 02/05/2023]
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16
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Xue W, Han W, Zhou ZS. ADAM33 polymorphisms are associated with asthma and a distinctive palm dermatoglyphic pattern. Mol Med Rep 2013; 8:1795-800. [PMID: 24141861 PMCID: PMC3829772 DOI: 10.3892/mmr.2013.1733] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 10/07/2013] [Indexed: 12/01/2022] Open
Abstract
A close correlation between asthma and palm dermatoglyphic patterns has been observed in previous studies, but the underlying genetic mechanisms have not been investigated. A disintegrin and metalloprotein-33 (ADAM33) polymorphisms are important in the development of asthma and other atopic diseases. To investigate the underlying mechanisms of the association between asthma and distinctive palm dermatoglyphic patterns, thirteen ADAM33 single-nucleotide polymorphisms (SNPs) were analyzed for the association between asthma and palm dermatoglyphic patterns in a population of 400 asthmatic patients and 200 healthy controls. Based on the results, five SNPs, rs44707 (codominant model, P=0.031; log-additive model, P=0.0084), rs2787094 (overdominant model, P=0.049), rs678881 (codominant model, P=0.028; overdominant model, P=0.0083), rs677044 (codominant model, P=0.013; log-additive model, P=0.0033) and rs512625 (dominant model, P=0.033), were associated with asthma in this population. Two SNPs, rs44707 (dominant model, P=0.042) and rs2787094 (codominant model, P=0.014; recessive model, P=0.0038), were observed in the asthma patients with the distinctive palm pattern. As rs44707 and rs2787094 are associated with asthma and a distinctive palm pattern, the data suggest that ADAM33 polymorphisms are correlated with asthma and may be the underlying genetic basis of the association between asthma and palm dermatoglyphic patterns.
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Affiliation(s)
- Weilin Xue
- Department of Respiratory Medicine, Qingdao Haici Hospital, Qingdao, Shandong 266033, P.R. China
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Song GG, Kim JH, Lee YH. Association between ADAM33 S2 and ST+4 polymorphisms and susceptibility to asthma: a meta-analysis. Gene 2013; 524:72-8. [PMID: 23612257 DOI: 10.1016/j.gene.2013.04.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Revised: 03/06/2013] [Accepted: 04/01/2013] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The aim of this study was to determine whether ADAM33 (a disintegrin and metalloproteinase domain 33) polymorphisms confer susceptibility to asthma in different populations. METHODS We performed a meta-analysis on the association between the ADAM33 S2, ST+4, F+1, S1, and V4 polymorphisms and asthma. RESULTS Thirteen studies in ten reports, which included 4942 patients and 7933 controls, were available for the meta-analysis. Meta-analysis stratified by ethnicity indicated an association between the ADAM33 S2 2 allele and asthma in Europeans (OR=0.912, 95% CI=0.851-0.977, p=0.009). Meta-analysis revealed an association between asthma and the ADAM33 ST+4 2 allele (OR=0.783, 95% CI=0.762-0.999, p=0.048). Stratification by ethnicity indicated an association between the ADAM33 ST+4 polymorphism and asthma in Asians. Stratification by age indicated an association between the ADAM33 ST+4 2 allele and asthma in adults (OR=0.863, 95% CI=0.782-0.964, p=0.008). However, no association was found between asthma and the ADAM33 F+1, S1, and V4 polymorphisms. CONCLUSIONS This meta-analysis demonstrates that the ADAM33 S2 polymorphism confers susceptibility to asthma in Europeans and the ADAM33 ST+4 polymorphism is associated with asthma in Asians and adults.
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Affiliation(s)
- Gwan Gyu Song
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Republic of Korea
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18
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Wang J, Wen J, Si-Ma-Yi MHRGL, He YB, Tu-Er-Xun KLBN, Xia Y, Zhang JL, Wu-Shou-Er QMGL. Association of ADAM33 gene polymorphisms with asthma in the Uygur population of China. Biomed Rep 2013; 1:447-453. [PMID: 24648966 DOI: 10.3892/br.2013.75] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 02/22/2013] [Indexed: 11/05/2022] Open
Abstract
Asthma is one of the most common chronic respiratory diseases, affecting ∼300 million children and adults worldwide. Previous studies identified a disintegrin and metalloprotease domain 33 (ADAM33) as an important susceptibility gene for asthma in patients of different nationalities; however, it is unknown whether this relationship exists in ethnically diverse populations. The present study focused on the association between single-nucleotide polymorphisms (SNPs) of the ADAM33 gene and asthma in the Uygur population of China. Three SNPs of ADAM33 (T1, S+1 and F+1) were genotyped in a case-control study among the Chinese Uygur population, involving 126 adult asthmatic patients and 126 healthy controls. The frequency of the ADAM33 T1 C allele among asthma patients was significantly higher compared to healthy controls (20.6 vs. 11.1%, P=0.003). The distribution of ADAM33 genotypes differed significantly between the two groups. The frequency of the T1 TC genotype was higher among patients compared to healthy controls [odds ratio (OR)=2.118, P=0.016] and the variant genotype, TC+CC, increased the risk of asthma (OR=2.244, P=0.005). Following adjustment for confounding factors, the ORs of TC and TC+CC for asthma were 2.317 and 2.522, respectively. There was a significant decrease in the forced expiratory volume (FEV1) levels in patients with the TC genotype compared to the TT genotype of T1. Haplotype analysis revealed that the frequencies of Hap5 (CAC) and Hap6 (CAT) were significantly higher among asthmatic patients compared to healthy controls (P=0.024 and 0.016, respectively). The genotype and allele frequencies of SNP S+1 and F+1 were not statistically different between asthmatic patients and controls. In conclusion, the ADAM33 T1 SNP may affect susceptibility to asthma in the Chinese Uygur population.
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Affiliation(s)
- Jing Wang
- Department of Respiratory Medicine, The First Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang 830054; ; Mobile Postdoctoral Station, The First Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang 830054
| | - Jin Wen
- Department of Intensive Care Unit, The Second Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang 830028, P.R. China
| | - Mi-He-Re-Gu-Li Si-Ma-Yi
- Department of Respiratory Medicine, The First Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang 830054
| | - Yuan-Bing He
- Department of Respiratory Medicine, The First Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang 830054
| | - Ke-Li-Bie-Na Tu-Er-Xun
- Department of Respiratory Medicine, The First Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang 830054
| | - Yu Xia
- Department of Respiratory Medicine, The First Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang 830054
| | - Jian-Long Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang 830054
| | - Qi-Man-Gu-Li Wu-Shou-Er
- Department of Respiratory Medicine, The First Affiliated Hospital, Xinjiang Medical University, Urumqi, Xinjiang 830054
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A disintegrin and metalloprotease 33 (ADAM33) gene polymorphisms and the risk of asthma: a meta-analysis. Hum Immunol 2013; 74:648-57. [PMID: 23380143 DOI: 10.1016/j.humimm.2013.01.025] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 12/04/2012] [Accepted: 01/24/2013] [Indexed: 01/13/2023]
Abstract
Polymorphisms in the ADAM33 gene have been associated with asthma, but the data are controversial. Therefore, we reviewed the related studies and quantitatively summarized the associations between ADAM33 polymorphisms and asthma risk using meta-analysis. A dominant model (AA+Aa vs. aa), recessive model (AA vs. Aa+aa), additive model (AA vs. aa) and allelic model (A vs. a) were used to estimate the association between ADAM33 polymorphism and asthma risk. A total of 29 case-control studies referring to 14 SNPs were identified: rs2280091(T1), rs2787094(V4), rs528557(S2), rs2280090(T2), rs511898(F+1), rs44707(ST+4), rs3918396(S1), rs543749(V-1), rs574174(ST+7), rs597980(ST+5), rs2853209(S+1), rs2280089(T+1), rs612709(Q-1), and rs3746631(V5). The results indicated that S1, V-1, V5, S+1, S2, ST+4, ST+7, ST+5, and Q-1 were not associated with asthma. Significant associations were found with the T1, V4, F+1 and T+1 polymorphisms in the overall population. In the subgroup analysis by ethnicity, a positive result was only found for the T1, V4, F+1 and T2 polymorphisms in Asia but not in Europe or Latin America. This meta-analysis provides evidence that the T1, V4, F+1, T2, and T+1 polymorphisms in the ADAM33 gene are risk factors for asthma, especially in the Asian population.
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Asthma in children and adolescents: a comprehensive approach to diagnosis and management. Clin Rev Allergy Immunol 2013; 43:98-137. [PMID: 22187333 PMCID: PMC7091307 DOI: 10.1007/s12016-011-8261-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Asthma is a chronic disease that has a significant impact on quality of life and is particularly important in children and adolescents, in part due to the higher incidence of allergies in children. The incidence of asthma has increased dramatically during this time period, with the highest increases in the urban areas of developed countries. It seems that the incidence in developing countries may follow this trend as well. While our knowledge of the pathophysiology of asthma and the available of newer, safer medication have both improved, the mortality of the disease has undergone an overall increase in the past 30 years. Asthma treatment goals in children include decreasing mortality and improving quality of life. Specific treatment goals include but are not limited to decreasing inflammation, improving lung function, decreasing clinical symptoms, reducing hospital stays and emergency department visits, reducing work or school absences, and reducing the need for rescue medications. Non-pharmacological management strategies include allergen avoidance, environmental evaluation for allergens and irritants, patient education, allergy testing, regular monitoring of lung function, and the use of asthma management plans, asthma control tests, peak flow meters, and asthma diaries. Achieving asthma treatment goals reduces direct and indirect costs of asthma and is economically cost-effective. Treatment in children presents unique challenges in diagnosis and management. Challenges in diagnosis include consideration of other diseases such as viral respiratory illnesses or vocal cord dysfunction. Challenges in management include evaluation of the child’s ability to use inhalers and peak flow meters and the management of exercise-induced asthma.
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El-Falaki MM, Wilson MM, Ezzat GM, Mokhtar DA, El Baz MS, Hamed DH. A disintegrin and metalloproteinase 33 (ADAM33) gene polymorphism association with asthma in Egyptian children. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2013. [DOI: 10.1016/j.ejmhg.2012.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Sharma N, Tripathi P, Awasthi S. Role of ADAM33 gene and associated single nucleotide polymorphisms in asthma. ALLERGY & RHINOLOGY 2012; 2:e63-70. [PMID: 22852121 PMCID: PMC3390120 DOI: 10.2500/ar.2011.2.0018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Asthma is a multifactorial disorder, primarily resulting from interactions between genetic and environmental factors. ADAM33 gene (located on chromosome 20p13) has been reported to play an important role in asthma. This review article is intended to include all of the publications, to date, which have assessed the association of ADAM33 gene polymorphisms as well as have shown the role of ADAM33 gene in airway remodeling and their expression with asthma. A PubMed search was performed for studies published between 1990 and 2010. The terms “ADAM33,” “ADAM33 gene and asthma,” and “ADAM33 gene polymorphisms” were used as search criteria. Based on available literature we can only speculate its role in the morphogenesis and functions of the lung. Fourteen studies conducted in different populations were found showing an association of ADAM33 gene polymorphisms with asthma. However, none of the single nucleotide polymorphisms (SNPs) of ADAM33 gene had found association with asthma across all ethnic groups. Because higher expression of ADAM33 is found in the fibroblast and smooth muscle cells of the lung, over- or underexpression of ADAM33 gene may result in alterations in airway remodeling and repair processes. However, no SNP of ADAM33 gene showed significant associations with asthma across all ethnic groups; the causative polymorphism, if any, still has to be identified.
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Affiliation(s)
- Neeraj Sharma
- Department of Pediatrics, Chhatrapati Shahuji Maharaj Medical University, Lucknow, Uttar Pradesh, India
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Tripathi P, Awasthi S, Prasad R, Ganesh S. Haplotypic association of ADAM33 (T+1, S+1 and V - 3) gene variants in genetic susceptibility to asthma in Indian population. Ann Hum Biol 2012; 39:479-83. [PMID: 22989201 DOI: 10.3109/03014460.2012.716451] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
AIM The aim of this study was to find out if the ADAM33 gene polymorphisms T+1(A>G), S+1(T>A) and V - 3(C>T) and their haplotypes play any role in genetic susceptibility to asthma. SUBJECTS AND METHODS Three hundred and ninety healthy controls and 386 asthmatic patients from Lucknow, India, were recruited for the study. Subjects were aged between 1-50 years. Among total recruited asthma cases, 95 (24.6%) had mild intermittent asthma, 235 (60.9%) had mild persistent asthma and 56 (14.5%) had moderate persistent asthma. Genotyping was carried out using the Polymerase Chain Reaction and Restriction Fragment Length polymorphism (PCRRFLP) method. RESULTS No significant differences in the genotype or allele frequencies of ADAM33 gene polymorphisms between asthmatic patients and healthy controls were found [p-value>0.05 (All the p-values were Bonferroni corrected)]. Also, no association of studied SNPs with the severity of the disease asthma was observed. However, the TTA haplotype was observed to be associated with asthma (OR = 3.4; 95%CI = 1.4-8.7; p = 0.002). CONCLUSIONS SNPs, T+1, S+1 and V - 3 do not individually confer any significant risk of asthma or its severity, but haplotype analysis suggests all three polymorphisms together play an important role in the disease of asthma.
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Affiliation(s)
- Priya Tripathi
- Department of Pediatrics, King George's Medical University, Lucknow, U.P., India
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Al-Khayyat AI, Al-Anazi M, Warsy A, Vazquez-Tello A, Alamri AM, Halwani R, Alangari A, Al-Frayh A, Hamid Q, Al-Muhsen S. T1 and T2 ADAM33 single nucleotide polymorphisms and the risk of childhood asthma in a Saudi Arabian population: a pilot study. Ann Saudi Med 2012; 32:479-86. [PMID: 22871616 PMCID: PMC6080986 DOI: 10.5144/0256-4947.2012.479] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Genetic association studies have demonstrated that over 100 variants in target genes (including ADAM33) are associated with airway remodeling and hyper-responsiveness in different ethnic groups; however, this has never been evaluated in Arabic populations. The objective of this study was to determine whether ADAM33 polymorphisms that are associated with asthma in a population of asthmatic children from Saudi Arabia. DESIGN AND SETTING A cross-sectional pilot study comparing the polymorphisms of normal subjects and asthmatic patients from Saudi Arabia over a period of 1 year. PATIENTS AND METHODS One hundred and seven Saudi asthmatic children and 87 healthy Saudi children of 3-12 years old were assessed for allelic association of ADAM33 T1 (rs2280091), T2 (rs2280090), ST+4 (rs44707) and S1 (rs3918396) SNPs to asthma. Genotyping was done by real-time PCR, multiplex ARMS and PCR-RFLP. RESULTS T1 and T2 SNP genotype frequencies in asthmatic children were significantly different compared to controls (P < .05), indicating allelic association with asthma. The T1 A/G and G/G and the T2 A/G and A/A genotypes (P=.0013 and P=.008, respectively) but not S1 and ST+4, increased the risk of asthma when using the best fit dominant model. Strong linkage disequilibrium between T1 (rs2280091) and T2 (rs2280090) was observed (r2=0.83; D'=0.95; P < .001). The haplotype G-A-A-C was significantly more frequent in asthmatics, thus supporting the association of T1 G-allele and T2 A-allele with increased predisposition to asthma (P=.007). CONCLUSIONS T1 A/G and T2 G/A ADAM33 polymorphisms, but not S1 or ST+4, were significantly associated with asthma development in Saudi children, like those reported for white and Hispanic populations in the United States.
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Affiliation(s)
- Arwa Ishaq Al-Khayyat
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed Al-Anazi
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
- Asthma Research Chair and Prince Naif Center for Immunology Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Arjumand Warsy
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Alejandro Vazquez-Tello
- Asthma Research Chair and Prince Naif Center for Immunology Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | | | - Rabih Halwani
- Asthma Research Chair and Prince Naif Center for Immunology Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Abdullah Alangari
- Asthma Research Chair and Prince Naif Center for Immunology Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Department of Pediatrics, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Abdurrahman Al-Frayh
- Asthma Research Chair and Prince Naif Center for Immunology Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Department of Pediatrics, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Qutayba Hamid
- Asthma Research Chair and Prince Naif Center for Immunology Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Meakins-Christie Laboratories, McGill University, Montreal, Canada
| | - Saleh Al-Muhsen
- Asthma Research Chair and Prince Naif Center for Immunology Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Department of Pediatrics, College of Medicine, King Saud University, Riyadh, Saudi Arabia
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Lee YH, Song GG. Association between ADAM33 T1 polymorphism and susceptibility to asthma in Asians. Inflamm Res 2012; 61:1355-62. [PMID: 22851202 DOI: 10.1007/s00011-012-0536-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2012] [Revised: 07/10/2012] [Accepted: 07/16/2012] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE The aim of this study was to determine whether the ADAM33 (a disintegrin and metalloproteinase domain 33) T1 (rs2280091), T2 (rs2280090), and ST+7 (rs574174) polymorphisms confer susceptibility to asthma. METHODS A meta-analysis stratified by ethnicity and age was conducted on associations between the ADAM33 T1, T2, and ST+7 polymorphisms and asthma. RESULTS Eleven studies, which included 4,124 patients and 7,094 controls, were available for the meta-analysis. Meta-analysis revealed an association between asthma and the ADAM33 T1 GG genotype [odds ratio (OR) = 2.257, 95 % confidence interval (CI) = 1.577-3.228, p = 8.42 × 10(-7)]. Stratification by ethnicity indicated an association between this genotype and asthma in Asians (OR = 2.683, 95 % CI = 1.799-4.001, p = 1.31 × 10(-7)), and stratification by age indicated an association between it and asthma in adults (OR = 1.895, 95 % CI = 1.005-3.573, p = 0.048). However, no association was found between asthma and the ADAM33 T2 and ST+7 polymorphisms. CONCLUSIONS This meta-analysis demonstrates that the ADAM33 T1 polymorphism confers susceptibility to asthma in Asians, but no association was found between the ADAM33 T2 and ST+7 polymorphisms and asthma susceptibility.
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Affiliation(s)
- Young Ho Lee
- Division of Rheumatology, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, 126-1, Anam-dong 5-ga, Seongbuk-gu, Seoul 136-705, Korea.
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Whole-genome resequencing of two elite sires for the detection of haplotypes under selection in dairy cattle. Proc Natl Acad Sci U S A 2012; 109:7693-8. [PMID: 22529356 DOI: 10.1073/pnas.1114546109] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Using a combination of whole-genome resequencing and high-density genotyping arrays, genome-wide haplotypes were reconstructed for two of the most important bulls in the history of the dairy cattle industry, Pawnee Farm Arlinda Chief ("Chief") and his son Walkway Chief Mark ("Mark"), each accounting for ∼7% of all current genomes. We aligned 20.5 Gbp (∼7.3× coverage) and 37.9 Gbp (∼13.5× coverage) of the Chief and Mark genomic sequences, respectively. More than 1.3 million high-quality SNPs were detected in Chief and Mark sequences. The genome-wide haplotypes inherited by Mark from Chief were reconstructed using ∼1 million informative SNPs. Comparison of a set of 15,826 SNPs that overlapped in the sequence-based and BovineSNP50 SNPs showed the accuracy of the sequence-based haplotype reconstruction to be as high as 97%. By using the BovineSNP50 genotypes, the frequencies of Chief alleles on his two haplotypes then were determined in 1,149 of his descendants, and the distribution was compared with the frequencies that would be expected assuming no selection. We identified 49 chromosomal segments in which Chief alleles showed strong evidence of selection. Candidate polymorphisms for traits that have been under selection in the dairy cattle population then were identified by referencing Chief's DNA sequence within these selected chromosome blocks. Eleven candidate genes were identified with functions related to milk-production, fertility, and disease-resistance traits. These data demonstrate that haplotype reconstruction of an ancestral proband by whole-genome resequencing in combination with high-density SNP genotyping of descendants can be used for rapid, genome-wide identification of the ancestor's alleles that have been subjected to artificial selection.
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Miyake Y, Tanaka K, Arakawa M. ADAM33 genetic polymorphisms, smoking, and rhinoconjunctivitis in Japanese women: the Kyushu Okinawa Maternal and Child Health Study. Hum Immunol 2012; 73:411-5. [PMID: 22349453 DOI: 10.1016/j.humimm.2012.02.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2011] [Revised: 12/27/2011] [Accepted: 02/01/2012] [Indexed: 11/27/2022]
Abstract
Two previous studies have demonstrated a significant relationship between ADAM33 single nucleotide polymorphisms (SNPs) and allergic rhinitis. Here, we investigated this issue in young adult Japanese women. The study included 393 women who met the criteria of the International Study of Asthma and Allergies in Childhood (ISAAC) for rhinoconjunctivitis. Controls included 767 women without rhinoconjunctivitis according to the ISAAC criteria who had not been diagnosed with allergic rhinitis by a doctor. The GC genotype of rs2787094, the CT genotype of rs628977, and the haplotype containing the rs2787094 C allele, the rs628977 T allele, the rs2853209 T allele, and the rs612709 G allele were significantly inversely associated with rhinoconjunctivitis. The AA genotype of rs2853209, the GA genotype of rs612709, and the haplotype carrying the rs2787094 G allele, the rs628977 C allele, the rs2853209 A allele, and the rs612709 G allele were significantly positively associated with rhinoconjunctivitis. A significant inverse relationship between rs628977 and rhinoconjunctivitis was demonstrated only in women who had never smoked, indicating a significant interaction between rs628977 and smoking. Our results suggest that SNPs and haplotypes in the ADAM33 gene are associated with rhinoconjunctivitis. This study is the first to demonstrate an interaction between rs628977 and smoking that affects rhinoconjunctivitis.
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Affiliation(s)
- Yoshihiro Miyake
- Department of Preventive Medicine and Public Health, Fukuoka University, Fukuoka, Japan.
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Tripathi P, Awasthi S, Prasad R, Husain N, Ganesh S. Association of ADAM33 gene polymorphisms with adult-onset asthma and its severity in an Indian adult population. J Genet 2012; 90:265-73. [PMID: 21869474 DOI: 10.1007/s12041-011-0073-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
ADAM33, a member of the ADAM (a disintegrin and metalloprotease) gene family, is an asthma susceptibility gene originally identified by positional cloning. In the present study, we investigated the possible association of five single-nucleotide polymorphisms (SNPs) in the ADAM33 (rs511898, rs528557, rs44707, rs597980 and rs2787094) with adult-onset asthma in an Indian population. The study included 175 patients with mild intermittent (n = 44), mild persistent (n = 108) or moderate persistent (n = 23) subgroups of asthma, and 253 nonasthmatic control individuals. SNPs were genotyped with the help of restriction fragment length polymorphism polymerase chain reaction (RFLP-PCR) method, and data were analysed using chi-square test and logistic regression model. Bonferroni's correction for multiple comparisons was applied for each hypothesis. Genotypes and allele frequencies of SNPs rs511898 and rs528557 were significantly associated with adult-onset asthma (P = 0.010-<0.001). A significant association of the homozygous mutant genotype and mutant alleles of SNPs rs2787094, rs44707 and rs597980 with the asthma was also observed (P = 0.020-<0.001). A positive association between asthma and haplotypes AGCCT, GGCCT, AGACT, GCAGT, GGACT, ACCCC and AGACC were also found (P = 0.036-<0.001, OR = 2.07-8.49). Haplotypes AGCGT, GCAGC, ACAGC, ACAGT, GGAGC and GGCGT appear to protect against asthma (P = 0.013-<0.0001, OR = 0.34-0.10). Our data suggest that ADAM33 gene polymorphisms serve as genetic risk factors for asthma in Indian adult population.
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Affiliation(s)
- Priya Tripathi
- Department of Pediatrics, Chhtrapati Shahuji Maharaj Medical University, Chowk, Lucknow 226 003, India
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Jie Z, Hu Z, Bai C, Jin M. ADAM33 gene polymorphisms associate with asthma susceptibility and severity in East China han population. J Asthma 2011; 48:979-85. [PMID: 22035178 DOI: 10.3109/02770903.2011.624233] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Multiple genetic and environmental factors impact the pathogenesis of asthma. ADAM33 (a disintegrin and metalloproteinase domain 33) represents a novel susceptibility gene for asthma in several diverse populations. The aim of this study was to determine whether single nucleotide polymorphisms (SNPs) of the ADAM33 gene associate with asthma susceptibility and severity in the Chinese Han population. METHODS A total of 224 subjects were enrolled, including 74 normal controls and 150 asthmatic patients. The asthmatic enrollees were further categorized into high- or low-severity groups according to the percentage of forced expiratory volume in 1 second of predicted value, symptoms, nighttime awakening, requirement for short-acting β2-agonist, and interference with normal activities. Six SNPs (F + 1, ST + 4, S1, S2, T1, and T2) in ADAM33 were genotyped using the polymerase chain restriction fragment length polymorphism method. RESULTS Three SNPs (F + 1, T1, and T2) of ADAM33 were found to have significant associations with asthma in the study population (p = .0058-.0067). The allele frequencies of two SNPs (F + 1, T1) in both the low- and high-severity groups were significantly different from the allele frequency in the control group. The allelic frequency of the T2 SNP was significantly different from that of the control group only in the high-severity group (p = .0081). Haplotype analysis demonstrated that the frequency of 7575G, 12433T, and 12462C (GTC haplotype) is higher in healthy controls than amongst asthma patients (78.4% vs. 61.8%, p = .0004). CONCLUSIONS Polymorphisms of the ADAM33 gene associate with asthma susceptibility in the east China Han population, and the genetic association is stronger in high-severity asthmatics.
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Affiliation(s)
- Zhijun Jie
- Department of Respiratory Medicine, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, PR China
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Awasthi S, Tripathi P, Ganesh S, Husain N. Association of ADAM33 gene polymorphisms with asthma in Indian children. J Hum Genet 2010; 56:188-95. [PMID: 21179102 DOI: 10.1038/jhg.2010.157] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Asthma is the most common chronic disorder in childhood, and asthma exacerbation is an important cause of childhood morbidity and hospitalization. In the present study, the relationship between single-nucleotide polymorphisms (SNPs) of the ADAM33 gene and asthma in Indian children has been examined using a case-control study. Five SNPs of the ADAM33 gene, F+1(rs511898) G/A, S2 (rs528557) G/C, ST+4 (rs44707) A/C, ST+5 (rs597980) C/T and V4 (rs2787094) C/G, were analyzed in 211 asthma cases and 137 controls aged 1-15 years using the PCR-restriction fragment length polymorphism method. Data were statistically analyzed using the χ(2)-test and logistic regression model. Haplotype estimation and linkage disequilibrium were conducted using the expectation-maximization algorithm. The genotypes and allele frequencies of SNPs S2 and ST+5 of the ADAM33 gene were significantly associated with asthma risk (P = 0.020 - < 0.001), whereas F+1, ST+4, V4 homozygous mutant genotypes and mutant alleles were significantly associated with increased asthma risk (P = 0.031 - < 0.001). A positive association was also found with haplotypes AGCCT, GGACT and AGCCC (P = < 0.001, odds ratio (OR) = 6.10-6.50), whereas ACAGT, AGCGC, AGCGT, GCAGC and GCCGT showed protective association with asthma (P = 0.019-0.000, OR = 0.50-0.20). Taken together, out results suggest that ADAM33 gene polymorphisms may modify individual susceptibility to develop childhood asthma in the Indian population.
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Affiliation(s)
- Shally Awasthi
- Department of Pediatrics, Chhatrapati Shahuji Maharaj Medical University, Lucknow, India.
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