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Xiong Q, Liu X, Wan ATY, Malainual N, Xiao X, Cao H, Tang MF, Ng JKW, Shin SK, Sio YY, Wang M, Sun B, Leung TF, Chew FT, Tungtrongchitr A, Tsui SKW. Genomic analysis reveals novel allergens of Blomia tropicalis. Allergol Int 2024; 73:340-344. [PMID: 38061933 DOI: 10.1016/j.alit.2023.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/08/2023] [Accepted: 11/08/2023] [Indexed: 04/02/2024] Open
Affiliation(s)
- Qing Xiong
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong; Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong; Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong
| | - Xiaoyu Liu
- Shenzhen Key Laboratory of Allergy and Immunology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Angel Tsz-Yau Wan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong; Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong
| | - Nat Malainual
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Xiaojun Xiao
- Shenzhen Key Laboratory of Allergy and Immunology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Hui Cao
- Shenzhen Key Laboratory of Allergy and Immunology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Man-Fung Tang
- Department of Paediatrics, The Chinese University of Hong Kong, Hong Kong
| | - Judy Kin-Wing Ng
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Soo-Kyung Shin
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong
| | - Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Mingqiang Wang
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong; Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Baoqing Sun
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ting-Fan Leung
- Department of Paediatrics, The Chinese University of Hong Kong, Hong Kong
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore.
| | - Anchalee Tungtrongchitr
- Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
| | - Stephen Kwok-Wing Tsui
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong; Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong; Centre for Microbial Genomics and Proteomics, The Chinese University of Hong Kong, Hong Kong.
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Teo WY, Lim YYE, Sio YY, Say YH, Reginald K, Chew FT. Atopic dermatitis-associated genetic variants regulate LOC100294145 expression implicating interleukin-27 production and type 1 interferon signaling. World Allergy Organ J 2024; 17:100869. [PMID: 38298829 PMCID: PMC10827559 DOI: 10.1016/j.waojou.2023.100869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/14/2023] [Accepted: 12/27/2023] [Indexed: 02/02/2024] Open
Abstract
Background Atopic dermatitis (AD) is a complex inflammatory disease with a strong genetic component. A singular approach of genome wide association studies (GWAS) can identify AD-associated genetic variants, but is unable to explain their functional relevance in AD. This study aims to characterize AD-associated genetic variants and elucidate the mechanisms leading to AD through a multi-omics approach. Methods GWAS identified an association between genetic variants at 6p21.32 locus and AD. Genotypes of 6p21.32 locus variants were evaluated against LOC100294145 expression in peripheral blood mononuclear cells (PBMCs). Their influence on LOC100294145 promoter activity was measured in vitro via a dual-luciferase assay. The function of LOC100294145 was then elucidated through a combination of co-expression analyses and gene enrichment with g:Profiler. Mendelian randomization was further used to assess the causal regulatory effect of LOC100294145 on its co-expressed genes. Results Minor alleles of rs116160149 and rs115388857 at 6p21.32 locus were associated with increased AD risk (p = 2.175 × 10-8, OR = 1.552; p = 2.805 × 10-9, OR = 1.55) and higher LOC100294145 expression in PBMCs (adjusted p = 0.182; 8.267 × 10-12). LOC100294145 expression was also found to be increased in those with AD (adjusted p = 3.653 × 10-2). The genotype effect of 6p21.32 locus on LOC100294145 promoter activity was further validated in vitro. Co-expression analyses predicted LOC100294145 protein's involvement in interleukin-27 and type 1 interferon signaling, which was further substantiated through mendelian randomization. Conclusion Genetic variants at 6p21.32 locus increase AD susceptibility through raising LOC100294145 expression. A multi-omics approach enabled the deduction of its pathogenesis model comprising dysregulation of hub genes involved in type 1 interferon and interleukin 27 signaling.
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Affiliation(s)
- Wei Yi Teo
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Yi Ying Eliza Lim
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Yee-How Say
- Department of Biological Sciences, National University of Singapore, Singapore
- Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR) Kampar Campus, Kampar, Perak, Malaysia
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Malaysia
| | - Kavita Reginald
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Malaysia
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore
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Wong QYA, Lim JJ, Ng JY, Lim YYE, Sio YY, Chew FT. Sleep and allergic diseases among young Chinese adults from the Singapore/Malaysia Cross-Sectional Genetic Epidemiology Study (SMCGES) cohort. J Physiol Anthropol 2024; 43:6. [PMID: 38291494 PMCID: PMC10826209 DOI: 10.1186/s40101-024-00356-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 01/19/2024] [Indexed: 02/01/2024] Open
Abstract
BACKGROUND AND OBJECTIVE Sleep disruption has been shown to affect immune function and thus influence allergic disease manifestation. The specific effects of sleep on allergic diseases, however, are less well-established; hence, in a unique population of young Chinese adults, we investigated the association between sleep and allergic disease. METHODS Young Chinese adults recruited from Singapore in the Singapore/Malaysia Cross-Sectional Genetic Epidemiology Study (SMCGES) were analyzed. We used the International Study of Asthma and Allergies in Childhood (ISAAC) protocol and a skin prick test to determine atopic dermatitis (AD), allergic rhinitis (AR), and asthma status. Information regarding total sleep time (TST) and sleep quality (SQ) was also obtained. RESULTS Of 1558 participants with a mean age of 25.0 years (SD = 7.6), 61.4% were female, and the mean total sleep time (TST) was 6.8 h (SD = 1.1). The proportions of AD, AR, and asthma were 24.5% (393/1542), 36.4% (987/1551), and 14.7% (227/1547), respectively. 59.8% (235/393) of AD cases suffered from AD-related sleep disturbances, 37.1% (209/564) of AR cases suffered from AR-related sleep disturbances, and 25.1% (57/227) of asthma cases suffered from asthma-related sleep disturbances. Only asthma cases showed a significantly lower mean TST than those without asthma (p = 0.015). Longer TST was significantly associated with lower odds of AR (OR = 0.905, 95% CI = 0.820-0.999) and asthma (OR = 0.852, 95% CI = 0.746-0.972). Linear regression analyses showed that lower TST was significantly associated with asthma (β = - 0.18, SE = 0.076, p-value = 0.017), and AR when adjusted for AR-related sleep disturbances (β = - 0.157, SE = 0.065, p-value = 0.016). Only sleep disturbances due to AR were significantly associated with a poorer SQ (OR = 1.962, 95% CI = 1.245-3.089). CONCLUSIONS We found that sleep quality, but not sleep duration was significantly poorer among AD cases, although the exact direction of influence could not be determined. In consideration of the literature coupled with our findings, we posit that TST influences allergic rhinitis rather than vice versa. Finally, the association between TST and asthma is likely mediated by asthma-related sleep disturbances, since mean TST was significantly lower among those with nighttime asthma symptoms. Future studies could consider using objective sleep measurements coupled with differential expression analysis to investigate the pathophysiology of sleep and allergic diseases.
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Affiliation(s)
- Qi Yi Ambrose Wong
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Jun Jie Lim
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Jun Yan Ng
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Yi Ying Eliza Lim
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Yang Yie Sio
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore.
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Sio YY, Victoria Nanong GA, Lim JA, Matta SA, Say YH, Teh KF, Wong YR, Rawanan Shah SM, Reginald K, Chew FT. Sensitization to oil palm pollen associates with risks and severity of allergic diseases. World Allergy Organ J 2024; 17:100853. [PMID: 38235258 PMCID: PMC10792632 DOI: 10.1016/j.waojou.2023.100853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/11/2023] [Accepted: 11/25/2023] [Indexed: 01/19/2024] Open
Abstract
Background Elaeis guineensis (Ela g, oil palm) pollen is one of the most predominant species of inhalant allergens in the tropical Southeast Asia region; however, its association with the manifestation of allergic diseases remains largely unexplored. This study aimed to determine the sensitization pattern of oil palm pollen and associate this with the risk and severity of allergic diseases. Methods Participants were recruited as a part of the Singapore and Malaysia cross-sectional genetic and epidemiological study (SMCSGES). Two independent cohorts were recruited: n = 564 serum samples were collected and serological assessment was performed against a panel of 16 crude inhalant allergens including house dust mite, pet, insect, pollen, and fungal allergens; n = 13 652 Singapore/Malaysia Chinese young adults were recruited and skin prick test was used to assess oil palm sensitization, which was tested for its association with the risk and severity of asthma, allergic rhinitis (AR), and atopic dermatitis (AD). Results The sensitization rate of oil palm pollen is 9.6% in the n = 564 Singapore/Malaysia cohort. In the n = 13 652 Singapore/Malaysia Chinese cohort, oil palm sensitization significantly associates with increased risks of asthma (p = 1.34x10-4), AR (p = 2.91x10-13), and AD (p = 6.95x10-7). Asthmatic patients with oil palm sensitization have increased risks of wheezing (p = 0.00995), nocturnal cough (p = 0.0122), and exacerbations (p = 0.00139) in the past 12 months. AR patients with oil palm sensitization also have an increased risk of developing moderate-to-severe symptoms (p = 0.00113). Conclusions We have identified significant associations of oil palm sensitization with increased risks, exacerbations, and the severity of symptoms of allergic diseases in the tropical Southeast Asian region (Singapore/Malaysia).
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Affiliation(s)
- Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore
| | | | - Jie Ann Lim
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Yee-How Say
- Department of Biological Sciences, National University of Singapore, Singapore
- Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR) Kampar Campus, Kampar, Perak, Malaysia
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Malaysia
| | - Keng Foo Teh
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Malaysia
| | - Yi Ru Wong
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Malaysia
| | - Smyrna Moti Rawanan Shah
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Malaysia
| | - Kavita Reginald
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Malaysia
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore
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Lim JJ, Lim YYE, Ng JY, Malipeddi P, Ng YT, Teo WY, Wong QYA, Matta SA, Sio YY, Wong YR, Teh KF, Rawanan Shah SM, Reginald K, Say YH, Liu MH, Chew FT. Burgers, Fast Foods, and Increased Associated Risk for Atopic Dermatitis: A Cross-Sectional Study of Dietary Habits among Young Chinese Adults in Singapore/Malaysia. Dermatology 2023; 240:77-84. [PMID: 37666213 DOI: 10.1159/000533942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/29/2023] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND We see increasing evidence that dietary and nutrients factors play a pivotal role in allergic diseases and recent global findings suggest that dietary habits influence the pathogenesis of atopic dermatitis (AD). Frequent consumption of fast food diets is associated with AD development. Despite the rising prevalence of AD in Asia, efforts in investigating the role of dietary habits and AD in adults are still lacking. METHODS We evaluated the association between the dietary intake of 16 food types and AD manifestations using our Singapore/Malaysia Cross-sectional Genetics Epidemiology Study (SMCGES) population. Dietary habits profiles of 11,494 young Chinese adults (1,550 AD cases/2,978 non-atopic controls/6,386 atopic controls) were assessed by an investigator-administered questionnaire. AD cases were further evaluated for their chronicity (550 chronic) and severity (628 moderate-to-severe). Additionally, we derived a novel food index, Quality of Diet based on Glycaemic Index Score (QDGIS), to examine the association between dietary intake of glycaemic index (GI) and various AD phenotypes. RESULTS The majority of AD subjects are distributed in the good (37.1%) and moderate (36.2%) QDGIS classes. From the multivariable analyses for age and gender, a moderate QDGIS class was significantly associated with a lower odds of AD (adjusted odds ratio (AOR): 0.844; 95% confidence interval (CI): 0.719-0.991; p < 0.05) and moderate-to-severe AD (AOR: 0.839; 95% CI: 0.714-0.985; p < 0.05). A good QDGIS class was only significantly associated with a lower odds of chronic AD (AOR: 0.769; 95% CI: 0.606-0.976; p < 0.05). Among high GI foods, frequent consumption of burgers/fast food was strongly associated with an increased risk of chronic and moderate-to-severe AD. Among low GI foods, increased intake frequencies of fruits, vegetables, and pulses decreased the odds of AD. Finally, we identified significant associations between frequent seafood, margarine, butter, and pasta consumption with an increased odds of AD despite them having little GI values. CONCLUSION While genetic components are well-established in their risks associated with increased AD prevalence, there is still a lack of a focus epidemiology study associating dietary influence with AD. Based on the first allergic epidemiology study conducted here in Singapore and Malaysia, it laid the groundwork to guide potential dietary interventions from changing personal dietary habits.
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Affiliation(s)
- Jun Jie Lim
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore,
| | - Yi Ying Eliza Lim
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Jun Yan Ng
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Praneeth Malipeddi
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Yu Ting Ng
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Wei Yi Teo
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Qi Yi Ambrose Wong
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Yang Yie Sio
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Yi Ru Wong
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, Petaling Jaya, Malaysia
| | - Keng Foo Teh
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, Petaling Jaya, Malaysia
| | - Smyrna Moti Rawanan Shah
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, Petaling Jaya, Malaysia
| | - Kavita Reginald
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, Petaling Jaya, Malaysia
| | - Yee-How Say
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, Petaling Jaya, Malaysia
- Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR), Kampar, Malaysia
| | - Mei Hui Liu
- Department of Food Science and Technology, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
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Sio YY, Gan WL, Ng WS, Matta SA, Say YH, Teh KF, Wong YR, Rawanan Shah SM, Reginald K, Chew FT. The ERBB2 Exonic Variant Pro1170Ala Modulates Mitogen-Activated Protein Kinase Signaling Cascades and Associates with Allergic Asthma. Int Arch Allergy Immunol 2023; 184:1010-1021. [PMID: 37336194 DOI: 10.1159/000530960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 04/30/2023] [Indexed: 06/21/2023] Open
Abstract
INTRODUCTION Previous studies have indicated the ERBB2 genetic variants in the 17q12 locus might be associated with asthma; however, the functional effects of these variants on asthma risk remain inconclusive. This study aimed to characterize the functional roles of asthma-associated ERBB2 single nucleotide polymorphisms (SNPs) in asthma pathogenesis by performing genetic association and functional analysis studies. METHODS This study belongs to a part of an ongoing Singapore/Malaysia cross-sectional genetics and epidemiological study (SMCSGES). Genotype-phenotype associations were assessed by performing a genotyping assay on n = 4,348 ethnic Chinese individuals from the SMCSGES cohort. The phosphorylation levels of receptors and signaling proteins in the MAPK signaling cascades, including ErbB2, EGFR, and ERK1/2, were compared across the genotypes of asthma-associated SNPs through in vitro and ex vivo approaches. RESULTS The ERBB2 tag-SNP rs1058808 was significantly associated with allergic asthma, with the allele "G" identified as protective against the disease (adjusted logistic p = 6.56 × 10-9, OR = 0.625, 95% CI: 0.544-0.718). The allele "G" of rs1058808 resulted in a Pro1170Ala mutation that results in lower phosphorylation levels of ErbB2 in HaCat cells (p < 0.001), whereas the overall ERBB2 mRNA expression and the phosphorylation levels of EGFR remained unaffected. In the SMCSGES cohort, individuals carrying the genotype "GG" of rs1058808 had lower phosphorylated ERK1/2 proteins in the MAPK signaling cascade. A lower phosphorylation level of ERK1/2 was also associated with reduced asthma risk. CONCLUSIONS The present findings highlighted the involvement of a functional exonic variant of ERBB2 in asthma development via modulating the MAPK signaling cascade.
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Affiliation(s)
- Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore,
| | - Wei Liang Gan
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Wing Shan Ng
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Yee-How Say
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR)Kampar Campus, Kampar, Malaysia
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya, Malaysia
| | - Keng Foo Teh
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya, Malaysia
| | - Yi Ru Wong
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya, Malaysia
| | - Smyrna Moti Rawanan Shah
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya, Malaysia
| | - Kavita Reginald
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya, Malaysia
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
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Sio YY, Shi P, Matta SA, Fok YTR, Chiang WC, Say YH, Chew FT. Functional Polymorphisms of the Arachidonic Acid Pathway Associate with Risks and Clinical Outcomes of Allergic Diseases. Int Arch Allergy Immunol 2023; 184:609-623. [PMID: 37231900 DOI: 10.1159/000530393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 03/22/2023] [Indexed: 05/27/2023] Open
Abstract
INTRODUCTION The arachidonic acid (AA) pathway plays a crucial role in allergic inflammatory diseases; however, the functional roles of allergy-associated single nucleotide polymorphisms (SNPs) in this pathway remain incompletely illustrated. METHODS This study belongs to a part of an ongoing Singapore/Malaysia cross-sectional genetics and epidemiological study (SMCSGES). We performed population genotyping on n = 2,880 individuals from the SMCSGES cohort to assess the associations of SNPs in the AA pathway genes with asthma and allergic rhinitis (AR). Spirometry assessments were performed to identify associations between SNPs and lung function among n = 74 pediatric asthmatic patients from the same cohort. Allergy-associated SNPs were functionally characterized using in vitro promoter luciferase assay, along with DNA methylome and transcriptome data of n = 237 peripheral blood mononuclear cell (PBMC) samples collected from a subset of the SMCSGES cohort. RESULTS Genetic association analysis showed 5 tag-SNPs from 4 AA pathway genes were significantly associated with asthma (rs689466 at COX2, rs35744894 at hematopoietic PGD2 synthase (HPGDS), rs11097414 at HPGDS, rs7167 at CRTH2, and rs5758 at TBXA2R, p < 0.05), whereas 3 tag-SNPs from HPGDS (rs35744894, rs11097414, and rs11097411) and 2 tag-SNPs from PTGDR (rs8019916 and rs41312470) were significantly associated with AR (p < 0.05). The asthma-associated rs689466 regulates COX2 promoter activity and associates with COX2 mRNA expression in PBMC. The allergy-associated rs1344612 was significantly associated with poorer lung function, increased risks of asthma and AR, and increased HPGDS promoter activity. The allergy-associated rs8019916 regulates PTGDR promoter activity and DNA methylation levels of cg23022053 and cg18369034 in PBMC. The asthma-associated rs7167 affects CRTH2 expression by regulating the methylation level of cg19192256 in PBMC. CONCLUSIONS The present study identified multiple allergy-associated SNPs that modulate the transcript expressions of key genes in the AA pathway. The development of a "personalized medicine" approach with consideration of genetic influences on the AA pathway may hopefully result in efficacious strategies to manage and treat allergic diseases.
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Affiliation(s)
- Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore,
| | - Ping Shi
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Yu Ting Rachel Fok
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Wen Chin Chiang
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Department of Allergy and Immunology, KK Women's and Children's Hospital, Singapore, Singapore
| | - Yee-How Say
- Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR) Kampar Campus, Kampar, Malaysia
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Sunway, Malaysia
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
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Herrera-Luis E, Mak ACY, Perez-Garcia J, Martin-Gonzalez E, Eng C, Beckman KB, Huntsman S, Hu D, González-Pérez R, Hernández-Pérez JM, Mederos-Luis E, Sio YY, Poza-Guedes P, Sardón O, Corcuera P, Sánchez-Machín I, Korta-Murua J, Martínez-Rivera C, Mullol J, Muñoz X, Valero A, Sastre J, Garcia-Aymerich J, Llop S, Torrent M, Casas M, Rodríguez-Santana JR, Villar J, del Pozo V, Lorenzo-Diaz F, Williams LK, Melén E, Chew FT, Borrell LN, Burchard EG, Pino-Yanes M. Admixture mapping of severe asthma exacerbations in Hispanic/Latino children and youth. Thorax 2023; 78:233-241. [PMID: 36180068 PMCID: PMC9957797 DOI: 10.1136/thorax-2022-218755] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 08/04/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND In the USA, genetically admixed populations have the highest asthma prevalence and severe asthma exacerbations rates. This could be explained not only by environmental factors but also by genetic variants that exert ethnic-specific effects. However, no admixture mapping has been performed for severe asthma exacerbations. OBJECTIVE We sought to identify genetic variants associated with severe asthma exacerbations in Hispanic/Latino subgroups by means of admixture mapping analyses and fine mapping, and to assess their transferability to other populations and potential functional roles. METHODS We performed an admixture mapping in 1124 Puerto Rican and 625 Mexican American children with asthma. Fine-mapping of the significant peaks was performed via allelic testing of common and rare variants. We performed replication across Hispanic/Latino subgroups, and the transferability to non-Hispanic/Latino populations was assessed in 1001 African Americans, 1250 Singaporeans and 941 Europeans with asthma. The effects of the variants on gene expression and DNA methylation from whole blood were also evaluated in participants with asthma and in silico with data obtained through public databases. RESULTS Genomewide significant associations of Indigenous American ancestry with severe asthma exacerbations were found at 5q32 in Mexican Americans as well as at 13q13-q13.2 and 3p13 in Puerto Ricans. The single nucleotide polymorphism (SNP) rs1144986 (C5orf46) showed consistent effects for severe asthma exacerbations across Hispanic/Latino subgroups, but it was not validated in non-Hispanics/Latinos. This SNP was associated with DPYSL3 DNA methylation and SCGB3A2 gene expression levels. CONCLUSIONS Admixture mapping study of asthma exacerbations revealed a novel locus that exhibited Hispanic/Latino-specific effects and regulated DPYSL3 and SCGB3A2.
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Affiliation(s)
- Esther Herrera-Luis
- Genomics and Health Group, Department of Biochemistry,
Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), La Laguna,
Tenerife, Spain
| | - Angel C. Y. Mak
- Department of Medicine, University of California San
Francisco, San Francisco, California, U.S.A
| | - Javier Perez-Garcia
- Genomics and Health Group, Department of Biochemistry,
Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), La Laguna,
Tenerife, Spain
| | - Elena Martin-Gonzalez
- Genomics and Health Group, Department of Biochemistry,
Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), La Laguna,
Tenerife, Spain
| | - Celeste Eng
- Department of Medicine, University of California San
Francisco, San Francisco, California, U.S.A
| | | | - Scott Huntsman
- Department of Medicine, University of California San
Francisco, San Francisco, California, U.S.A
| | - Donglei Hu
- Department of Medicine, University of California San
Francisco, San Francisco, California, U.S.A
| | - Ruperto González-Pérez
- Allergy Department, Hospital Universitario de Canarias,
Santa Cruz de Tenerife, Tenerife, Spain,Asthma Unit, Hospital Universitario de Canarias, La Laguna,
Tenerife, Spain
| | - José M. Hernández-Pérez
- Pulmonary Medicine, Hospital Universitario de N.S de
Candelaria, Santa Cruz de Tenerife, Spain,Pulmonary Medicine, Hospital General de La Palma, La Palma,
Santa Cruz de Tenerife, Spain
| | - Elena Mederos-Luis
- Allergy Department, Hospital Universitario de Canarias,
Santa Cruz de Tenerife, Tenerife, Spain
| | - Yang Yie Sio
- Department of Biological Sciences, National University of
Singapore, Singapore
| | - Paloma Poza-Guedes
- Allergy Department, Hospital Universitario de Canarias,
Santa Cruz de Tenerife, Tenerife, Spain,Asthma Unit, Hospital Universitario de Canarias, La Laguna,
Tenerife, Spain
| | - Olaia Sardón
- Division of Pediatric Respiratory Medicine, Hospital
Universitario Donostia, San Sebastián, Spain,Department of Pediatrics, University of the Basque
Country (UPV/EHU), San Sebastián, Spain
| | - Paula Corcuera
- Division of Pediatric Respiratory Medicine, Hospital
Universitario Donostia, San Sebastián, Spain
| | | | - Javier Korta-Murua
- Division of Pediatric Respiratory Medicine, Hospital
Universitario Donostia, San Sebastián, Spain,Department of Pediatrics, University of the Basque
Country (UPV/EHU), San Sebastián, Spain
| | - Carlos Martínez-Rivera
- CIBER de Enfermedades Respiratorias, Instituto de Salud
Carlos III, Madrid, Spain,Servicio de Neumología, Hospital Universitario
Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona,
Spain
| | - Joaquim Mullol
- CIBER de Enfermedades Respiratorias, Instituto de Salud
Carlos III, Madrid, Spain,Rhinology Unit & Smell Clinic, ENT Department;
Clinical & Experimental Respiratory Immunoallergy (IDIBAPS), Universitat de
Barcelona, Barcelona, Spain
| | - Xavier Muñoz
- CIBER de Enfermedades Respiratorias, Instituto de Salud
Carlos III, Madrid, Spain,Servicio de Neumología, Hospital Vall
d’Hebron, Barcelona, Spain
| | - Antonio Valero
- CIBER de Enfermedades Respiratorias, Instituto de Salud
Carlos III, Madrid, Spain,Allergy Unit & Severe Asthma Unit, Pneumonology and
Allergy Department, Hospital Clínic; IDIBAPS; Universitat de
Barcelona.Barcelona, Spain
| | - Joaquín Sastre
- CIBER de Enfermedades Respiratorias, Instituto de Salud
Carlos III, Madrid, Spain,Allergy Department, Hospital Universitario
Fundación Jiménez Díaz, Madrid, Spain
| | - Judith Garcia-Aymerich
- Spanish Consortium for Research on Epidemiology and
Public Health (CIBERESP), Madrid, Spain,ISGlobal, Barcelona, Spain,Universitat Pompeu Fabra, Barcelona, Spain
| | - Sabrina Llop
- Spanish Consortium for Research on Epidemiology and
Public Health (CIBERESP), Madrid, Spain,Epidemiology and Environmental Health Joint Research
Unit, FISABIO–Universitat Jaume I–Universitat de València,
Valencia, Spain
| | | | - Maribel Casas
- ISGlobal, Barcelona, Spain,Universitat Pompeu Fabra, Barcelona, Spain
| | | | - Jesús Villar
- CIBER de Enfermedades Respiratorias, Instituto de Salud
Carlos III, Madrid, Spain,Multidisciplinary Organ Dysfunction Evaluation Research
Network, Research Unit, Hospital Universitario Dr. Negrín, Las Palmas de Gran
Canaria, Spain
| | - Victoria del Pozo
- CIBER de Enfermedades Respiratorias, Instituto de Salud
Carlos III, Madrid, Spain,Immunology Department, Instituto de Investigación
Sanitaria Hospital Universitario Fundación Jiménez Díaz,
Madrid, Spain
| | - Fabian Lorenzo-Diaz
- Genomics and Health Group, Department of Biochemistry,
Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), La Laguna,
Tenerife, Spain,Instituto Universitario de Enfermedades Tropicales y
Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), La
Laguna, Tenerife, Spain
| | - L. Keoki Williams
- Center for Individualized and Genomic Medicine Research,
Department of Internal Medicine, Henry Ford Health System, Detroit, MI, U.S.A
| | - Erik Melén
- Department of Clinical Sciences and Education,
Södersjukhuset, Karolinska Institutet, Stockholm, Sweden,Sachs’ Children’s Hospital, South General
Hospital, Stockholm, Sweden
| | - Fook Tim Chew
- Department of Biological Sciences, National University of
Singapore, Singapore
| | - Luisa N. Borrell
- Department of Epidemiology & Biostatistics, Graduate
School of Public Health & Health Policy, City University of New York, New York,
NY, U.S.A
| | - Esteban G. Burchard
- UMN Genomics Center, Minneapolis, Minnesota, U.S.A.,Department of Bioengineering and Therapeutic Sciences,
University of California San Francisco, San Francisco, California, U.S.A
| | - Maria Pino-Yanes
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology, and Genetics, Universidad de La Laguna (ULL), La Laguna, Spain .,CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain.,Instituto de Tecnologías Biomédicas (ITB), Universidad de La Laguna (ULL), La Laguna, Spain
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9
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Wong QYA, Lim JJ, Ng JY, Malipeddi P, Lim YYE, Sio YY, Chew FT. An updated prevalence of asthma, its phenotypes, and the identification of the potential asthma risk factors among young Chinese adults recruited in Singapore. World Allergy Organ J 2023; 16:100757. [PMID: 36968625 PMCID: PMC10033744 DOI: 10.1016/j.waojou.2023.100757] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 02/01/2023] [Accepted: 02/25/2023] [Indexed: 03/22/2023] Open
Abstract
Background Asthma is a chronic inflammatory disease of the airway characterized by respiratory symptoms: wheezing, shortness of breath, coughing, and chest tightness. Globally, asthma affects over 300 million individuals and carries high morbidity and mortality burden. Previous studies have estimated the prevalence of asthma; however, prevalence estimates have been changing over time. Here, in a population of young Chinese adults from Singapore, we aimed to obtain an updated prevalence of asthma and its phenotypes, and identify potential associated risk factors. Methods The Singapore/Malaysia Cross-Sectional Genetics Epidemiology Study (SMCGES) is an ongoing study which uses established ISAAC guidelines to collect epidemiological data and information pertaining to allergic diseases such as asthma. Responses from young Chinese adults recruited in the National University of Singapore were analyzed. Results Lifetime asthma prevalence rate was estimated at 19.1% (2049/10,736), while current asthma prevalence rate was estimated at 6.3% (679/10,736). For ever asthma, the most important risk factor was a parental history of asthma. Increased consumption of pulses (aOR: 0.822, 95% CI: 0.706-0.958) was associated with a lowered odds of ever asthma, but cereals (aOR: 1.256, 95% CI: 1.006-1.580), pasta (aOR: 1.265, 95% CI: 1.027-1.553), butter (aOR: 1.350, 95% CI: 1.113-1.632), and margarine (aOR: 1.343, 95% CI: 1.081-1.660) were associated with a higher risk of ever asthma. Increased television/computer usage was associated with a decreased risk of ever asthma (aOR: 0.448, 95% CI: 0.367-0.545). Conversely, genetic factors had a lower strength of effect on current asthma (parental history of asthma - OR: 1.465, 95% CI: 1.135-1.888) as compared to ever asthma. Only increased potato consumption was significantly associated with an increased risk of current asthma (most or all days per week vs never or only occasionally - aOR: 1.577, 95% CI: 1.145-2.180). Physical activity (aOR: 0.693, 95% CI: 0.542-0.885) was associated with a lower odds of asthma, while second-hand smoke exposure was associated with an increased risk for current asthma (aOR: 1.435, 95% CI: 1.001-2.047). Conclusion Overall, the prevalence of lifetime asthma and current asthma among young Chinese adults was 19.1% and 6.3%, higher than that of previous studies. Our results suggested a stronger association between genetic factors and ever asthma as compared to current asthma. Parental asthma was the most important intrinsic epidemiological factor for asthma manifestation, while various foods, physical activity levels, and television or computer usage were also significantly associated with asthma. Future studies should consider risk factors in conjunction with other accompanying variables given the potential interactions between them, to discern the effects of environment and lifestyle on asthma more distinctly.
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10
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Lim JJ, Lim YYE, Ng JY, Malipeddi P, Ng YT, Teo WY, Wong QYA, Matta SA, Sio YY, Wong YR, Teh KF, Rawanan Shah SM, Reginald K, Say YH, Chew FT. An update on the prevalence, chronicity, and severity of atopic dermatitis and the associated epidemiological risk factors in the Singapore/Malaysia Chinese young adult population: A detailed description of the Singapore/Malaysia Cross-Sectional Genetics Epidemiology Study (SMCGES) cohort. World Allergy Organ J 2022; 15:100722. [DOI: 10.1016/j.waojou.2022.100722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 10/27/2022] [Accepted: 10/31/2022] [Indexed: 11/19/2022] Open
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11
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Wong QYA, Lim JJ, Ng JY, Malipeddi P, Teo WY, Lim YYE, Ng YT, Sio YY, Matta SA, Wong YR, Teh KF, Rawanan Shah SM, Reginald K, Say YH, Chew FT. Allergic rhinitis in Chinese young adults from the Singapore/Malaysia cross-sectional genetics epidemiology study (SMCGES) cohort: Prevalence, patterns, and epidemiology of allergic rhinitis. World Allergy Organ J 2022; 15:100704. [PMID: 36267097 PMCID: PMC9554817 DOI: 10.1016/j.waojou.2022.100704] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 08/01/2022] [Accepted: 09/02/2022] [Indexed: 11/29/2022] Open
Abstract
Background Allergic rhinitis (AR) is characterized by the occurrence of at least 2 symptoms of nasal itching, nasal blockage, rhinorrhea, and sneezing, when not afflicted with a cold or flu, with defined atopic sensitization demonstrated by skin prick test or specific IgE responses. Besides the detriment to standard of living and economic burden of AR, both multicentre and single-cohort studies have observed an increase in AR prevalence in Asia over time. Methods In total, 12 872 individuals, with mean age 22.1 years (SD = 4.8), were recruited from universities in Singapore and Malaysia. Each participant provided epidemiological data based on an investigator-administered questionnaire adapted from the validated International Study of Allergies and Asthma in Childhood (ISAAC) protocol, and atopy status was determined using a skin prick test (SPT) performed by qualified staff. AR was diagnosed according to Allergic Rhinitis and its Impact on Asthma (ARIA) guidelines and a positive SPT result. Results Sensitization (determined by SPT) to either Blomia tropicalis or Dermatophagoides pteronyssinus was prevalent in 66.5% of the cohort. Current rhinitis (manifesting ≥2 rhinitis symptoms, within the past 12 months) was observed in 48.9% of our population, while AR, which included atopy status, was estimated at 39.4%. Sneezing and rhinorrhea were the most common symptoms among AR cases. AR prevalence decreased with increasing age (OR: 0.979; 95% CI: 0.969-0.989), while male gender (OR: 2.053; 95% CI: 1.839-2.294), and a parental history of allergic diseases (OR: 2.750; 95% CI: 2.284-3.316) were significant risk factors for AR. Upon adjustment for age, gender, and parental history, housing type (OR: 0.632; 95% CI: 0.543-0.736) and income level (>$6000 vs <$2000; OR: 2.461; 95% CI: 2.058-2.947) remained as significant risk factors for AR, while ever having kept a pet (OR: 1.167; 95% CI: 1.025-1.328) emerged as a risk factor. Conflicting results were obtained for indicators of sedentary lifestyle: frequent physical activity (OR: 1.394; 95% CI: 1.150-1.694) and increased duration spent using the TV/computer (OR: 1.224; 95% CI: 1.006-1.489) both increased the risk of AR. Lastly, we used the Quality of Diet based on Glycaemic Index Score (QDGIS) to assess the Glycaemic Index (GI) level of overall diet. We identified lower GI level of overall diet as a protective factor against AR manifestation (OR: 0.682; 95% CI: 0.577-0.807). Conclusion While the previously established non-modifiable risk factors for AR were present in our study population, the identification of modifiable risk factors, such as TV/computer usage, and dietary habits, opens a new area for research, both in the areas of gene-environment interaction, and management of AR.
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Affiliation(s)
- Qi Yi Ambrose Wong
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Jun Jie Lim
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Jun Yan Ng
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Praneeth Malipeddi
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Wei Yi Teo
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Yi Ying Eliza Lim
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Yu Ting Ng
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Yang Yie Sio
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Yi Ru Wong
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, 47500 Petaling Jaya, Selangor, Malaysia
| | - Keng Foo Teh
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, 47500 Petaling Jaya, Selangor, Malaysia
| | - Smyrna Moti Rawanan Shah
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, 47500 Petaling Jaya, Selangor, Malaysia
| | - Kavita Reginald
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, 47500 Petaling Jaya, Selangor, Malaysia
| | - Yee How Say
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore,Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, 47500 Petaling Jaya, Selangor, Malaysia,Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR), 31900 Kampar, Perak, Malaysia
| | - Fook Tim Chew
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore,Corresponding author. Department of Biological Sciences; Vice Dean, Faculty of Science Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, 117543, Singapore
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12
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Andiappan AK, Puan KJ, Sio YY, Ally F, Lee B, Matta SA, Yusof N, Larbi A, Wang DY, Chew FT, Rotzschke O, Rotzschke O. Functional CTLA-4 variants associate to both allergic asthma and rhinitis potentially by modulating naïve regulatory T cells. Allergy 2022; 77:2856-2858. [PMID: 35607825 DOI: 10.1111/all.15386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/21/2022] [Accepted: 05/18/2022] [Indexed: 01/27/2023]
Affiliation(s)
| | - Kia Joo Puan
- Singapore Immunology Network (SIgN), Singapore, Singapore
| | - Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Fauziah Ally
- Singapore Immunology Network (SIgN), Singapore, Singapore
| | - Bernett Lee
- Singapore Immunology Network (SIgN), Singapore, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | | | - Anis Larbi
- Singapore Immunology Network (SIgN), Singapore, Singapore
| | - De Yun Wang
- Department of Otolaryngology, National University of Singapore, Singapore, Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Olaf Rotzschke
- Singapore Immunology Network (SIgN), Singapore, Singapore
| | - Olaf Rotzschke
- Singapore Immunology Network (SIgN), #04-06, 8A Biomedical Grove, Singapore
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13
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Slob EMA, Faiz A, van Nijnatten J, Vijverberg SJH, Longo C, Kutlu M, Chew FT, Sio YY, Herrera-Luis E, Espuela-Ortiz A, Perez-Garcia J, Pino-Yanes M, Burchard EG, Potočnik U, Gorenjak M, Palmer C, Maroteau C, Turner S, Verhamme K, Karimi L, Mukhopadhyay S, Timens W, Hiemstra PS, Pijnenburg MW, Neighbors M, Grimbaldeston MA, Tew GW, Brandsma CA, Berce V, Aliee H, Theis F, Sin DD, Li X, van den Berge M, Maitland-van der Zee AH, Koppelman GH. Association of bronchial steroid inducible methylation quantitative trait loci with asthma and chronic obstructive pulmonary disease treatment response. Clin Transl Allergy 2022; 12:e12173. [PMID: 36036237 PMCID: PMC9421427 DOI: 10.1002/clt2.12173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Elise M A Slob
- Department of Respiratory Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,Department of Paediatric Pulmonology, Amsterdam Public Health Research Institute, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,Department of Clinical Pharmacy, Haaglanden Medical Center, The Hague, The Netherlands
| | - Alen Faiz
- Department of Pulmonology, University Medical Center Groningen, Groningen, The Netherlands.,University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands.,Respiratory Bioinformatics and Molecular Biology, School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Jos van Nijnatten
- Department of Pulmonology, University Medical Center Groningen, Groningen, The Netherlands.,University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands.,Respiratory Bioinformatics and Molecular Biology, School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Susanne J H Vijverberg
- Department of Respiratory Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,Department of Paediatric Pulmonology, Amsterdam Public Health Research Institute, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Cristina Longo
- Department of Respiratory Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Merve Kutlu
- Department of Respiratory Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Fook Tim Chew
- Department of Biological Science, National University of Singapore, Singapore, Singapore
| | - Yang Yie Sio
- Department of Biological Science, National University of Singapore, Singapore, Singapore
| | - Esther Herrera-Luis
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Antonio Espuela-Ortiz
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Javier Perez-Garcia
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Maria Pino-Yanes
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, Santa Cruz de Tenerife, Spain.,CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain.,Instituto de Tecnologías Biomédicas (ITB), Universidad de La Laguna, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
| | - Esteban G Burchard
- Department of Medicine, University of California San Francisco, San Francisco, California, USA.,Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, California, USA
| | - Uroš Potočnik
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia.,Laboratory for Biochemistry, Molecular Biology and Genomics, Faculty for Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia
| | - Mario Gorenjak
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Colin Palmer
- Population Pharmacogenetics Group, Biomedical Research Institute, University of Dundee, Dundee, UK
| | - Cyrielle Maroteau
- Population Pharmacogenetics Group, Biomedical Research Institute, University of Dundee, Dundee, UK
| | - Steve Turner
- Child Health, University of Aberdeen, Aberdeen, UK
| | - Katia Verhamme
- Department of Medical Informatics, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Leila Karimi
- Department of Medical Informatics, Erasmus Medical Center, Rotterdam, The Netherlands
| | | | - Wim Timens
- Department of Pulmonology, University Medical Center Groningen, Groningen, The Netherlands.,Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Mariëlle W Pijnenburg
- Department of Pediatrics, Pediatric Pulmonology and Allergology, Erasmus Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Margaret Neighbors
- OMNI Biomarker Development, Genentech Inc, South San Francisco, California, USA
| | | | - Gaik W Tew
- Product Development Immunology, Infectious Disease & Ophtalmology, Genentech Inc, South San Francisco, California, USA
| | - Corry A Brandsma
- Department of Pulmonology, University Medical Center Groningen, Groningen, The Netherlands.,Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Vojko Berce
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia.,Department of Pediatrics, University Medical Centre Maribor, Maribor, Slovenia
| | - Hananeh Aliee
- Institute of Computational Biology, Helmholtz Center, Munich, Germany
| | - Fabian Theis
- Institute of Computational Biology, Helmholtz Center, Munich, Germany.,Department of Mathematics, Technical University of Munich, Munich, Germany
| | - Don D Sin
- Centre for Heart Lung Innovation, St. Paul's Hospital and University of British Columbia, Vancouver, British Columbia, Canada
| | - Xuan Li
- Centre for Heart Lung Innovation, St. Paul's Hospital and University of British Columbia, Vancouver, British Columbia, Canada
| | - Maarten van den Berge
- Department of Pulmonology, University Medical Center Groningen, Groningen, The Netherlands.,University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
| | - Anke H Maitland-van der Zee
- Department of Respiratory Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,Department of Paediatric Pulmonology, Amsterdam Public Health Research Institute, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Gerard H Koppelman
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands.,Department of Pediatric Pulmonology and Pediatric Allergology, University of Groningen, University Medical Center Groningen, Beatrix Children's Hospital, Groningen, The Netherlands
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14
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Herrera-Luis E, Ortega VE, Ampleford EJ, Sio YY, Granell R, de Roos E, Terzikhan N, Vergara EE, Hernandez-Pacheco N, Perez-Garcia J, Martin-Gonzalez E, Lorenzo-Diaz F, Hashimoto S, Brinkman P, Jorgensen AL, Yan Q, Forno E, Vijverberg SJ, Lethem R, Espuela-Ortiz A, Gorenjak M, Eng C, González-Pérez R, Hernández-Pérez JM, Poza-Guedes P, Sardón O, Corcuera P, Hawkins GA, Marsico A, Bahmer T, Rabe KF, Hansen G, Kopp MV, Rios R, Cruz MJ, González-Barcala FJ, Olaguibel JM, Plaza V, Quirce S, Canino G, Cloutier M, Del Pozo V, Rodriguez-Santana JR, Korta-Murua J, Villar J, Potočnik U, Figueiredo C, Kabesch M, Mukhopadhyay S, Pirmohamed M, Hawcutt DB, Melén E, Palmer CN, Turner S, Maitland-van der Zee AH, von Mutius E, Celedón JC, Brusselle G, Chew FT, Bleecker E, Meyers D, Burchard EG, Pino-Yanes M. Multi-ancestry genome-wide association study of asthma exacerbations. Pediatr Allergy Immunol 2022; 33:e13802. [PMID: 35754128 PMCID: PMC9671132 DOI: 10.1111/pai.13802] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/01/2022] [Accepted: 05/04/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND Asthma exacerbations are a serious public health concern due to high healthcare resource utilization, work/school productivity loss, impact on quality of life, and risk of mortality. The genetic basis of asthma exacerbations has been studied in several populations, but no prior study has performed a multi-ancestry meta-analysis of genome-wide association studies (meta-GWAS) for this trait. We aimed to identify common genetic loci associated with asthma exacerbations across diverse populations and to assess their functional role in regulating DNA methylation and gene expression. METHODS A meta-GWAS of asthma exacerbations in 4989 Europeans, 2181 Hispanics/Latinos, 1250 Singaporean Chinese, and 972 African Americans analyzed 9.6 million genetic variants. Suggestively associated variants (p ≤ 5 × 10-5 ) were assessed for replication in 36,477 European and 1078 non-European asthma patients. Functional effects on DNA methylation were assessed in 595 Hispanic/Latino and African American asthma patients and in publicly available databases. The effect on gene expression was evaluated in silico. RESULTS One hundred and twenty-six independent variants were suggestively associated with asthma exacerbations in the discovery phase. Two variants independently replicated: rs12091010 located at vascular cell adhesion molecule-1/exostosin like glycosyltransferase-2 (VCAM1/EXTL2) (discovery: odds ratio (ORT allele ) = 0.82, p = 9.05 × 10-6 and replication: ORT allele = 0.89, p = 5.35 × 10-3 ) and rs943126 from pantothenate kinase 1 (PANK1) (discovery: ORC allele = 0.85, p = 3.10 × 10-5 and replication: ORC allele = 0.89, p = 1.30 × 10-2 ). Both variants regulate gene expression of genes where they locate and DNA methylation levels of nearby genes in whole blood. CONCLUSIONS This multi-ancestry study revealed novel suggestive regulatory loci for asthma exacerbations located in genomic regions participating in inflammation and host defense.
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Affiliation(s)
- Esther Herrera-Luis
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), San Cristóbal de La Laguna, Tenerife, Spain
| | - Victor E Ortega
- Division of Respiratory Medicine, Department of Internal Medicine, Mayo Clinic, Scottsdale, Arizona, USA
| | - Elizabeth J Ampleford
- Department of Internal Medicine, Center for Precision Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore City, Singapore
| | - Raquel Granell
- MRC Integrative Epidemiology Unit (IEU), Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Emmely de Roos
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Natalie Terzikhan
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Ernesto Elorduy Vergara
- Institute of Computation Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich, Germany
| | - Natalia Hernandez-Pacheco
- Department of Clinical Sciences and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden.,CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Javier Perez-Garcia
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), San Cristóbal de La Laguna, Tenerife, Spain
| | - Elena Martin-Gonzalez
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), San Cristóbal de La Laguna, Tenerife, Spain
| | - Fabian Lorenzo-Diaz
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), San Cristóbal de La Laguna, Tenerife, Spain.,Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias (IUETSPC), Universidad de La Laguna (ULL), San Cristóbal de La Laguna, Tenerife, Spain
| | - Simone Hashimoto
- Department of Respiratory Medicine, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Paul Brinkman
- Department of Respiratory Medicine, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | | | - Andrea L Jorgensen
- Department of Health Data Science, Institute of Population Health, University of Liverpool, Liverpool, UK
| | - Qi Yan
- Department of Obstetrics and Gynecology, Columbia University Irving Medical Center, New York, New York, USA
| | - Erick Forno
- Division of Pediatric Pulmonary Medicine, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Susanne J Vijverberg
- Department of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.,Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Utrecht University, Utrecht, The Netherlands.,Department of Paediatric Respiratory Medicine and Allergy, Emma's Children Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Ryan Lethem
- MRC Integrative Epidemiology Unit (IEU), Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Antonio Espuela-Ortiz
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), San Cristóbal de La Laguna, Tenerife, Spain
| | - Mario Gorenjak
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Celeste Eng
- Department of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Ruperto González-Pérez
- Allergy Department, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Tenerife, Spain.,Severe Asthma Unit, Allergy Department, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Tenerife, Spain
| | - José M Hernández-Pérez
- Pulmonary Medicine, Hospital Universitario de N.S de Candelaria, Santa Cruz de Tenerife, Spain.,Pulmonary Medicine, Hospital General de La Palma, La Palma, Santa Cruz de Tenerife, Spain
| | - Paloma Poza-Guedes
- Allergy Department, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Tenerife, Spain.,Severe Asthma Unit, Allergy Department, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Tenerife, Spain
| | - Olaia Sardón
- Division of Pediatric Respiratory Medicine, Hospital Universitario Donostia, San Sebastián, Spain.,Department of Pediatrics, University of the Basque Country (UPV/EHU), San Sebastián, Spain
| | - Paula Corcuera
- Division of Pediatric Respiratory Medicine, Hospital Universitario Donostia, San Sebastián, Spain
| | - Greg A Hawkins
- Department of Biochemistry, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Annalisa Marsico
- Computational Health Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich, Germany
| | - Thomas Bahmer
- LungenClinic Grosshansdorf, Pneumology, Grosshansdorf, Germany.,Airway Research Center North (ARCN), Members of the Germany Center for Lung Research (DZL), Grosshansdorf, Germany
| | - Klaus F Rabe
- LungenClinic Grosshansdorf, Pneumology, Grosshansdorf, Germany.,Airway Research Center North (ARCN), Members of the Germany Center for Lung Research (DZL), Grosshansdorf, Germany
| | - Gesine Hansen
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
| | - Matthias Volkmar Kopp
- Division of Pediatric Pneumology & Allergology, University Medical Center Schleswig-Holstein, Lübeck, Germany.,Airway Research Center North (ARCN), Members of the Germany Center for Lung Research (DZL), Lübeck, Germany.,Department of Paediatric Respiratory Medicine, Inselspital, University Children's Hospital of Bern, University of Bern, Bern, Switzerland
| | - Raimon Rios
- Programa de Pós Graduação em Imunologia (PPGIm), Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Salvador, Brazil
| | - Maria Jesus Cruz
- CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Servicio de Neumología, Hospital Vall d'Hebron, Barcelona, Spain
| | | | - José María Olaguibel
- CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Servicio de Alergología, Complejo Hospitalario de Navarra, Pamplona, Navarra, Spain
| | - Vicente Plaza
- CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Departamento de Medicina Respiratoria, Hospital de la Santa Creu i Sant Pau, Instituto de Investigación Biomédica Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - Santiago Quirce
- CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Department of Allergy, La Paz University Hospital, IdiPAZ, Madrid, Spain
| | - Glorisa Canino
- Behavioral Sciences Research Institute, University of Puerto Rico, San Juan, Puerto Rico
| | - Michelle Cloutier
- Department of Pediatrics, University of Connecticut, Farmington, Connecticut, USA
| | - Victoria Del Pozo
- CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Immunology Department, Instituto de Investigación Sanitaria Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | | | - Javier Korta-Murua
- Department of Pediatrics, University of the Basque Country (UPV/EHU), San Sebastián, Spain
| | - Jesús Villar
- CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Multidisciplinary Organ Dysfunction Evaluation Research Network, Research Unit, Hospital Universitario Dr. Negrín, Las Palmas de Gran Canaria, Spain
| | - Uroš Potočnik
- Laboratory for Biochemistry, Molecular Biology and Genomics, Faculty for Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia
| | - Camila Figueiredo
- Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Michael Kabesch
- Department of Paediatric Pneumology and Allergy, University Children's Hospital Regensburg (KUNO), Regensburg, Germany
| | - Somnath Mukhopadhyay
- Academic Department of Paediatrics, Brighton and Sussex Medical School, Royal Alexandra Children's Hospital, Brighton, UK.,Population Pharmacogenetics Group, Biomedical Research Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - Munir Pirmohamed
- Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, UK
| | - Daniel B Hawcutt
- Department of Women's and Children's Health, University of Liverpool, Liverpool, UK.,Alder Hey Children's Hospital, Liverpool, UK.,NIHR Alder Hey Clinical Research Facility, Alder Hey Children's Hospital, Liverpool, UK
| | - Erik Melén
- Department of Clinical Sciences and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden.,Sachs' Children's Hospital, South General Hospital, Stockholm, Sweden
| | - Colin N Palmer
- Population Pharmacogenetics Group, Biomedical Research Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - Steve Turner
- Child Health, University of Aberdeen, Aberdeen, UK
| | - Anke H Maitland-van der Zee
- Department of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.,Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Utrecht University, Utrecht, The Netherlands.,Department of Paediatric Respiratory Medicine and Allergy, Emma's Children Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Erika von Mutius
- Institute for Asthma and Allergy Prevention, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich, Germany.,Dr von Hauner Children's Hospital, Ludwig-Maximilians-Universität, Munich, Germany.,Comprehensive Pneumology Center Munich (CPC-M), Member of the German Center for Lung Research, Munich, Germany
| | - Juan C Celedón
- Division of Pediatric Pulmonary Medicine, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Guy Brusselle
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium.,Department of Respiratory Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore City, Singapore
| | - Eugene Bleecker
- Division of Genetics, Genomics, and Precision Medicine, Department of Internal Medicine, University of Arizona College of Medicine, Tucson, Arizona, USA
| | - Deborah Meyers
- Division of Genetics, Genomics, and Precision Medicine, Department of Internal Medicine, University of Arizona College of Medicine, Tucson, Arizona, USA
| | - Esteban G Burchard
- Severe Asthma Unit, Allergy Department, Hospital Universitario de Canarias, Santa Cruz de Tenerife, Tenerife, Spain.,Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, California, USA
| | - Maria Pino-Yanes
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna (ULL), San Cristóbal de La Laguna, Tenerife, Spain.,CIBER de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Instituto de Tecnologías Biomédicas (ITB), Universidad de La Laguna (ULL), San Cristóbal de La Laguna, Tenerife, Spain
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15
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Say YH, Sio YY, Heng AHS, Ng YT, Matta SA, Pang SL, Teh KF, Wong YR, Rawanan Shah SM, Reginald K, Chew FT. Golgin A7 Family Member B (GOLGA7B) is a plausible novel gene associating high glycaemic index diet with acne vulgaris. Exp Dermatol 2022; 31:1208-1219. [PMID: 35416335 DOI: 10.1111/exd.14575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 01/30/2022] [Accepted: 04/10/2022] [Indexed: 11/29/2022]
Abstract
While the IGF1/FoxO1/mTORC1 signalling pathway is a well-established nutrigenomic link between high glycaemic index (GI)/glycaemic load (GL) diet and acne vulgaris, other signalling pathways remain elusive. Therefore, we aimed to investigate other genes that are involved in the high GI/GL diet-acne link, using our Singapore/Malaysia population epidemiological, genomics and transcriptomics data. High GI/GL dietary habit of 3,207 acne cases (1,869 and 1,341 further classified into severity and scarring grades, respectively) and 2,521 controls were evaluated based on Quality of Diet based on Glycaemic Index Score (QDGIS). Overlapping concordant differentially expressed genes (DEGs) between acne case-controls and QDGIS poor-moderate/good classes were identified from whole-transcriptome sequencing data of PBMC of a subset of participants. Finally, we assessed the expression quantitative trait loci (eQTL) association of single nucleotide polymorphisms (SNPs) of the concordant DEGs. Daily intake of fruits significantly reduced the risk of acne presentation, severity and scarring by up to 48.5%. Those with good QDGIS had significantly lower risk of mild and moderate/severe acne, and grade 1/2 acne scarring. Sequential filtering identified four overlapping concordant DEGs that were significantly associated with acne and QDGIS, namely GOLGA7B, SNCB, LOC102723849 and LOC283683. Combining transcriptome and genetic association data, we identified intronic SNP rs1953947 in GOLGA7B as an eQTL for acne. In conclusion, we identified GOLGA7B as a plausible novel gene that links high GI/GL with acne, and hence propose a model for the involvement of Golga7b in high GI/GL diet-acne pathogenesis, which includes palmitoyl acyltransferase zDHHC5, fatty acid translocase CD36 and palmitic acid.
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Affiliation(s)
- Yee-How Say
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore
| | - Yang Yie Sio
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore
| | - Anna Hwee Sing Heng
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore
| | - Yu Ting Ng
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore
| | - Sze Lei Pang
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore
| | - Keng Foo Teh
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Malaysia
| | - Yi Ru Wong
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Malaysia
| | - Smyrna Moti Rawanan Shah
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Malaysia
| | - Kavita Reginald
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Malaysia
| | - Fook Tim Chew
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore
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16
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Abstract
Background and objective An increasing trend of asthma prevalence was observed in Asia; however, contributions of environmental and host-related risk factors to the development of this disease remain uncertain. This study aimed to perform a systematic review and meta-analysis for asthma-associated risk factors reported in Asia. Methods We systematically searched three public databases (Web of Science, PubMed, and Scopus) in Feb 2021. We only included articles that reported environmental and host-related risk factors associated with asthma in the Asian population. Random-effect meta-analyses were conducted for frequently reported asthma-associated risk factors to provide an overall risk estimate of asthma development. Results Of 4030 records obtained from public databases, 289 articles were selected for review. The most frequently reported asthma-associated risk factor was the family history of allergy-related conditions. The random-effect asthma risk estimates (pooled odds ratio, OR) were 4.66 (95% confidence interval (CI): 3.73–5.82) for the family history of asthma, 3.50 (95% CI: 2.62–4.67) for the family history of atopy, 3.57 (95% CI: 3.03–4.22) for the family history of any allergic diseases, 1.96 (95% CI: 1.47–2.61) for the family history of allergic rhinitis, and 2.75 (95% CI: 1.12–6.76) for the family history of atopic dermatitis. For housing-related factors, including the presence of mold, mold spots, mold odor, cockroach, water damage, and incense burning, the random-effect pooled OR ranged from 1.43 to 1.73. Other risk factors with significant pooled OR for asthma development included male gender (1.30, 95% CI: 1.23–1.38), cigarette smoke exposure (1.44, 95% CI: 1.30–1.60), cigarette smoking (1.66, 95% CI: 1.44–1.90), body mass index (BMI)–related parameters (pooled OR ranged from 1.06 to 2.02), various types of air pollution (NO2, PM10, and O3; pooled OR ranged from 1.03 to 1.22), and pre- and perinatal factors (low birth weight, preterm birth, and cesarean section; pooled OR ranged from 1.14 to 1.32). Conclusions The family history of asthma was the most frequently reported risk factor for asthma development in Asia with the highest risk estimate for asthma development. This suggests a major role of the genetic component in asthma pathogenesis. Further study on asthma genetics is required to improve the current understanding of asthma etiology. Supplementary Information The online version contains supplementary material available at 10.1186/s40101-021-00273-x.
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Affiliation(s)
- Yang Yie Sio
- Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Department of Biological Sciences, National University of Singapore, Block S2, Level 5, 14 Science Drive 4, off Lower Kent Ridge Road, 117543, Singapore, Singapore
| | - Fook Tim Chew
- Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Department of Biological Sciences, National University of Singapore, Block S2, Level 5, 14 Science Drive 4, off Lower Kent Ridge Road, 117543, Singapore, Singapore.
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17
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Karimi L, Vijverberg SJ, Engelkes M, Hernandez-Pacheco N, Farzan N, Soares P, Pino-Yanes M, Jorgensen AL, Eng C, Mukhopadhyay S, Schieck M, Kabesch M, Burchard EG, Chew FT, Sio YY, Potočnik U, Gorenjak M, Hawcutt DB, Palmer CN, Turner S, Janssens HM, Maitland-van der Zee AH, Verhamme KM. ADRB2 haplotypes and asthma exacerbations in children and young adults: An individual participant data meta-analysis. Clin Exp Allergy 2021; 51:1157-1171. [PMID: 34128573 PMCID: PMC8503671 DOI: 10.1111/cea.13965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 05/25/2021] [Accepted: 05/28/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND The polymorphism Arg16 in β2 -adrenergic receptor (ADRB2) gene has been associated with an increased risk of exacerbations in asthmatic children treated with long-acting β2 -agonists (LABA). However, it remains unclear whether this increased risk is mainly attributed to this single variant or the combined effect of the haplotypes of polymorphisms at codons 16 and 27. OBJECTIVE We assessed whether the haplotype analysis could explain the association between the polymorphisms at codons 16 (Arg16Gly) and 27 (Gln27Glu) in ADRB2 and risk of asthma exacerbations in patients treated with inhaled corticosteroids (ICS) plus LABA. METHODS The study was undertaken using data from 10 independent studies (n = 5903) participating in the multi-ethnic Pharmacogenomics in Childhood Asthma (PiCA) consortium. Asthma exacerbations were defined as asthma-related use of oral corticosteroids or hospitalizations/emergency department visits in the past 6 or 12 months prior to the study visit/enrolment. The association between the haplotypes and the risk of asthma exacerbations was performed per study using haplo.stats package adjusted for age and sex. Results were meta-analysed using the inverse variance weighting method assuming random-effects. RESULTS In subjects treated with ICS and LABA (n = 832, age: 3-21 years), Arg16/Gln27 versus Gly16/Glu27 (OR: 1.40, 95% CI: 1.05-1.87, I2 = 0.0%) and Arg16/Gln27 versus Gly16/Gln27 (OR: 1.43, 95% CI: 1.05-1.94, I2 = 0.0%), but not Gly16/Gln27 versus Gly16/Glu27 (OR: 0.99, 95% CI: 0.71-1.39, I2 = 0.0%), were significantly associated with an increased risk of asthma exacerbations. The sensitivity analyses indicated no significant association between the ADRB2 haplotypes and asthma exacerbations in the other treatment categories, namely as-required short-acting β2 -agonists (n = 973), ICS monotherapy (n = 2623), ICS plus leukotriene receptor antagonists (LTRA; n = 338), or ICS plus LABA plus LTRA (n = 686). CONCLUSION AND CLINICAL RELEVANCE The ADRB2 Arg16 haplotype, presumably mainly driven by the Arg16, increased the risk of asthma exacerbations in patients treated with ICS plus LABA. This finding could be beneficial in ADRB2 genotype-guided treatment which might improve clinical outcomes in asthmatic patients.
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Affiliation(s)
- Leila Karimi
- Department of Medical Informatics, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Susanne J. Vijverberg
- Department of Respiratory Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
- Department of Pediatric Respiratory Medicine and Allergy, Emma Children’s Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences (UIPS), Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Marjolein Engelkes
- Department of Medical Informatics, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Natalia Hernandez-Pacheco
- Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
| | - Niloufar Farzan
- Department of Respiratory Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences (UIPS), Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Patricia Soares
- Academic department of Pediatrics, Brighton & Sussex Medical School, Royal Alexandra Children’s Hospital, Brighton, United Kingdom
| | - Maria Pino-Yanes
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Tecnologías Biomédicas (ITB), Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Andrea L. Jorgensen
- Department of Biostatistics, Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom
| | - Celeste Eng
- Department of Medicine, University of California, San Francisco, San Francisco, California, United States
| | - Somnath Mukhopadhyay
- Academic department of Pediatrics, Brighton & Sussex Medical School, Royal Alexandra Children’s Hospital, Brighton, United Kingdom
| | - Maximilian Schieck
- Department of Pediatric Pneumology and Allergy, University Children’s Hospital Regensburg (KUNO), Regensburg, Germany
- Department of Human Genetics, Hannover Medical School, Hannover, Germany
| | - Michael Kabesch
- Department of Pediatric Pneumology and Allergy, University Children’s Hospital Regensburg (KUNO), Regensburg, Germany
| | - Esteban G. Burchard
- Department of Medicine, University of California, San Francisco, San Francisco, California, United States
- Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, California, United States
| | - Fook Tim Chew
- Department of Biological Science, National University of Singapore, Singapore
| | - Yang Yie Sio
- Department of Biological Science, National University of Singapore, Singapore
| | - Uroš Potočnik
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
- Laboratory for Biochemistry, Molecular Biology and Genomics, Faculty of Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia
| | - Mario Gorenjak
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Daniel B. Hawcutt
- University of Liverpool and Alder Hey Children’s Hospital, members of Liverpool Health Partners, Liverpool, UK
- NIHR Alder Hey Clinical Research Facility, Alder Hey Children’s Hospital, Liverpool, UK
| | - Colin N. Palmer
- Division of Cardiovascular and Diabetes Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - Steve Turner
- Child Health, University of Aberdeen, Aberdeen, United Kingdom
| | - Hettie M. Janssens
- Department of Pediatrics/division Respiratory Medicine and Allergology Erasmus MC/Sophia Children’s Hospital, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Anke H. Maitland-van der Zee
- Department of Respiratory Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
- Department of Pediatric Respiratory Medicine and Allergy, Emma Children’s Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences (UIPS), Faculty of Science, Utrecht University, Utrecht, the Netherlands
| | - Katia M.C. Verhamme
- Department of Medical Informatics, Erasmus University Medical Center, Rotterdam, the Netherlands
- Department of Bioanalysis, Ghent University, Ghent, Belgium
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18
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Slob EMA, Richards LB, Vijverberg SJH, Longo C, Koppelman GH, Pijnenburg MWH, Bel EHD, Neerincx AH, Herrera Luis E, Perez-Garcia J, Tim Chew F, Yie Sio Y, Andiappan AK, Turner SW, Mukhopadhyay S, Palmer CNA, Hawcutt D, Jorgensen AL, Burchard EG, Hernandez-Pacheco N, Pino-Yanes M, Maitland-van der Zee AH. Genome-wide association studies of exacerbations in children using long-acting beta2-agonists. Pediatr Allergy Immunol 2021; 32:1197-1207. [PMID: 33706416 PMCID: PMC8328929 DOI: 10.1111/pai.13494] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Some children with asthma experience exacerbations despite long-acting beta2-agonist (LABA) treatment. While this variability is partly caused by genetic variation, no genome-wide study until now has investigated which genetic factors associated with risk of exacerbations despite LABA use in children with asthma. We aimed to assess whether genetic variation was associated with exacerbations in children treated with LABA from a global consortium. METHODS A meta-analysis of genome-wide association studies (meta-GWAS) was performed in 1,425 children and young adults with asthma (age 6-21 years) with reported regular use of LABA from six studies within the PiCA consortium using a random effects model. The primary outcome of each study was defined as any exacerbation within the past 6 or 12 months, including at least one of the following: 1) hospital admissions for asthma, 2) a course of oral corticosteroids or 3) emergency room visits because of asthma. RESULTS Genome-wide association results for a total of 82 996 common single nucleotide polymorphisms (SNPs, MAF ≥1%) with high imputation quality were meta-analysed. Eight independent variants were suggestively (P-value threshold ≤5 × 10-6 ) associated with exacerbations despite LABA use. CONCLUSION No strong effects of single nucleotide polymorphisms (SNPs) on exacerbations during LABA use were identified. We identified two loci (TBX3 and EPHA7) that were previously implicated in the response to short-acting beta2-agonists (SABA). These loci merit further investigation in response to LABA and SABA use.
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Affiliation(s)
- Elise M A Slob
- Department of Respiratory Disease, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,Pediatric Respiratory Medicine, Emma Children's Hospital, Amsterdam UMC, Amsterdam, The Netherlands
| | - Levi B Richards
- Department of Respiratory Disease, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Susanne J H Vijverberg
- Department of Respiratory Disease, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,Pediatric Respiratory Medicine, Emma Children's Hospital, Amsterdam UMC, Amsterdam, The Netherlands.,Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Utrecht University, Utrecht, Netherlands
| | - Cristina Longo
- Department of Respiratory Disease, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Gerard H Koppelman
- Department of Paediatric, Pulmonology & Paediatric Allergology, University Medical Center Groningen, Beatrix Children's Hospital, University of Groningen, Groningen, The Netherlands.,University Medical Center Groningen, Groningen Research Institute for Asthma & COPD (GRIAC), University of Groningen, Groningen, The Netherlands
| | - Mariëlle W H Pijnenburg
- Division of Respiratory Medicine and Allergology, Department of Paediatrics, Erasmus MC - Sophia, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Elisabeth H D Bel
- Department of Respiratory Disease, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Anne H Neerincx
- Department of Respiratory Disease, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Esther Herrera Luis
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Javier Perez-Garcia
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Fook Tim Chew
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Yang Yie Sio
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Anand K Andiappan
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore.,Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Steve W Turner
- Department of Child Health, University of Aberdeen, Aberdeen, UK
| | - Somnath Mukhopadhyay
- Academic Department of Paediatrics, Royal Alexandra Children's Hospital, Brighton and Sussex Medical School, Brighton, UK.,Population Pharmacogenetics Group, Biomedical Research Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - Colin N A Palmer
- Population Pharmacogenetics Group, Biomedical Research Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - Daniel Hawcutt
- Department of Women's and Children's Health, University of Liverpool, Liverpool, UK.,NIHR Alder Hey Clinical Research Facility, Alder Hey Children's Hospital, Liverpool, UK
| | - Andrea L Jorgensen
- Department of Health Data Science, University of Liverpool, Liverpool, UK
| | - Esteban G Burchard
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA.,Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA
| | - Natalia Hernandez-Pacheco
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Maria Pino-Yanes
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, Santa Cruz de Tenerife, Spain.,Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain.,Instituto de Tecnologías Biomédicas (ITB), Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Anke H Maitland-van der Zee
- Department of Respiratory Disease, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,Pediatric Respiratory Medicine, Emma Children's Hospital, Amsterdam UMC, Amsterdam, The Netherlands.,Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Utrecht University, Utrecht, Netherlands
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19
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Sio YY, Pang SL, Say YH, Teh KF, Wong YR, Shah SMR, Reginald K, Chew FT. Sensitization to Airborne Fungal Allergens Associates with Asthma and Allergic Rhinitis Presentation and Severity in the Singaporean/Malaysian Population. Mycopathologia 2021; 186:583-588. [PMID: 34258653 PMCID: PMC8536550 DOI: 10.1007/s11046-021-00532-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 01/28/2021] [Indexed: 11/29/2022]
Abstract
Fungal spores and conidia are the major components of total airspora in the tropical Asia environment, and their sensitization patterns are often associated with allergic diseases such as asthma, allergic rhinitis (AR), and atopic dermatitis. Hence, we recruited a cross-sectional cohort of 9223 Singapore/Malaysia Chinese adults and assessed their sensitization against Curvularia lunata allergen using the skin prick test approach. A subset of this cohort (n = 254) was also screened for specific Immunoglobulin E (sIgE) titers against a panel of 11 fungal allergens. We found significant association of Curvularia lunata sensitization with the risk of asthma (OR = 1.66, 95% CI: 1.17–2.33; p = 0.00391) and AR (OR = 1.69, 95% CI: 1.18–2.41; p = 0.00396). Among asthmatic patients (n = 1680), Curvularia lunata sensitization also increased frequencies of wheezing symptoms (OR = 1.81, 95% CI: 1.05–2.96; p = 0.0239), general practitioner/specialist visits (OR = 2.37, 95% CI: 1.13–4.61; p = 0.0157), and other asthma-related exacerbation events (OR = 2.14, 95% CI: 1.04–4.10; p = 0.0289). In our serum cohort, sensitization to Aspergillus spp. was the most common fungal sensitization, with 23.6% (n = 60) had a class 3 and above sensitization (positive sensitization; sIgE titers of > 3.5 kU/L) against this allergen. Increasing sIgE titer against Aspergillus spp. was also correlated with increased AR risk and AR-related symptoms. In conclusion, our findings emphasize an important role of fungal sensitization in the manifestations of asthma and AR in the Southeast Asian Chinese population.
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Affiliation(s)
- Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Sze Lei Pang
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Yee-How Say
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore.,Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR) Kampar Campus, Kampar, Perak, Malaysia
| | - Keng Foo Teh
- Department of Biological Sciences, School of Science and Technology, Sunway University, Subang Jaya, Malaysia
| | - Yi Ru Wong
- Department of Biological Sciences, School of Science and Technology, Sunway University, Subang Jaya, Malaysia
| | - Smyrna Moti Rawanan Shah
- Department of Biological Sciences, School of Science and Technology, Sunway University, Subang Jaya, Malaysia
| | - Kavita Reginald
- Department of Biological Sciences, School of Science and Technology, Sunway University, Subang Jaya, Malaysia
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore.
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20
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Heng AHS, Say YH, Sio YY, Ng YT, Chew FT. Epidemiological Risk Factors Associated with Acne Vulgaris Presentation, Severity, and Scarring in a Singapore Chinese Population: A Cross-Sectional Study. Dermatology 2021; 238:226-235. [PMID: 34062533 DOI: 10.1159/000516232] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 03/27/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Acne vulgaris is classified based on the severity of skin lesions and post-healing scar types of these lesions. Numerous epidemiology studies have investigated the risk factors associated with acne presentation and severity, but studies for acne scarring are lacking. OBJECTIVE To investigate the prevalence of acne, severity, and scarring grades and their associated risk factors among Singapore Chinese. METHODS A total of 3,888 subjects (2,090 cases/1,798 controls; median age = 21 ± 4.589; range 17-71) completed an investigator-administered questionnaire as part of a cross-sectional study, which included sociodemographics, familial medical history, lifestyle factors, dietary habits, and acne history. Acne cases were further evaluated for their severity (n = 991) and scarring (n = 988) grades by a trained personnel. RESULTS The majority of the acne cases had mild acne/grade 1 scarring, while less than 1% had severe acne/grade 4 scarring. Parental acne was significantly associated with acne presentation and moderate/severe acne, while sibling acne was significantly associated with grade 3/4 scarring. Gender and age affected acne severity and scarring but not acne presentation, while tertiary maternal education level and the possession of ≥3 siblings were particularly associated with acne scarring. Underweight BMI was protective against acne presentation, while atopic diseases (asthma, allergic rhinitis, eczema) were its predisposing factors. Of the evaluated lifestyle factors, computer/TV usage had significant association with acne presentation, while alcohol consumption was significantly associated with acne severity. Frequent milk consumption was associated with a protective effect for moderate-severe acne, while frequent butter consumption had a detrimental effect on acne scarring extent. CONCLUSION Positive familial history is a strong predisposing factor in determining acne presentation, severity, and scarring. Demographic factors (gender, age) and sedentary lifestyle (increased computer/TV usage) influence acne presentation, while dietary habits (milk and butter consumption) influence acne severity and scarring. The predisposing factors revealed in this study could help us to gain insights into acne pathophysiology and hence develop interventions especially targeting modifiable risk factors.
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Affiliation(s)
- Anna Hwee Sing Heng
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Yee-How Say
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore,
| | - Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Yu Ting Ng
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
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21
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Hernandez-Pacheco N, Vijverberg SJ, Herrera-Luis E, Li J, Sio YY, Granell R, Corrales A, Maroteau C, Lethem R, Perez-Garcia J, Farzan N, Repnik K, Gorenjak M, Soares P, Karimi L, Schieck M, Pérez-Méndez L, Berce V, Tavendale R, Eng C, Sardon O, Kull I, Mukhopadhyay S, Pirmohamed M, Verhamme KMC, Burchard EG, Kabesch M, Hawcutt DB, Melén E, Potočnik U, Chew FT, Tantisira KG, Turner S, Palmer CN, Flores C, Pino-Yanes M, Maitland-van der Zee AH. Genome-wide association study of asthma exacerbations despite inhaled corticosteroid use. Eur Respir J 2021; 57:2003388. [PMID: 33303529 PMCID: PMC8122045 DOI: 10.1183/13993003.03388-2020] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 11/09/2020] [Indexed: 02/07/2023]
Abstract
RATIONALE Substantial variability in response to asthma treatment with inhaled corticosteroids (ICS) has been described among individuals and populations, suggesting the contribution of genetic factors. Nonetheless, only a few genes have been identified to date. We aimed to identify genetic variants associated with asthma exacerbations despite ICS use in European children and young adults and to validate the findings in non-Europeans. Moreover, we explored whether a gene-set enrichment analysis could suggest potential novel asthma therapies. METHODS A genome-wide association study (GWAS) of asthma exacerbations was tested in 2681 children of European descent treated with ICS from eight studies. Suggestive association signals were followed up for replication in 538 European asthma patients. Further evaluation was performed in 1773 non-Europeans. Variants revealed by published GWAS were assessed for replication. Additionally, gene-set enrichment analysis focused on drugs was performed. RESULTS 10 independent variants were associated with asthma exacerbations despite ICS treatment in the discovery phase (p≤5×10-6). Of those, one variant at the CACNA2D3-WNT5A locus was nominally replicated in Europeans (rs67026078; p=0.010), but this was not validated in non-European populations. Five other genes associated with ICS response in previous studies were replicated. Additionally, an enrichment of associations in genes regulated by trichostatin A treatment was found. CONCLUSIONS The intergenic region of CACNA2D3 and WNT5A was revealed as a novel locus for asthma exacerbations despite ICS treatment in European populations. Genes associated were related to trichostatin A, suggesting that this drug could regulate the molecular mechanisms involved in treatment response.
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Affiliation(s)
- Natalia Hernandez-Pacheco
- Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
- Genomics and Health Group, Dept of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - Susanne J Vijverberg
- Dept of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
- Dept of Paediatric Respiratory Medicine and Allergy, Emma's Children Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Esther Herrera-Luis
- Genomics and Health Group, Dept of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - Jiang Li
- The Channing Division of Network Medicine, Dept of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Yang Yie Sio
- Dept of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Raquel Granell
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Almudena Corrales
- Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
| | - Cyrielle Maroteau
- Division of Population Health and Genomics, School of Medicine, University of Dundee, Dundee, UK
| | - Ryan Lethem
- MRC Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Javier Perez-Garcia
- Genomics and Health Group, Dept of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - Niloufar Farzan
- Dept of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
- Breathomix B.V., El Reeuwijk, The Netherlands
| | - Katja Repnik
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
- Laboratory for Biochemistry, Molecular Biology and Genomics, Faculty for Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia
| | - Mario Gorenjak
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Patricia Soares
- Academic Dept of Paediatrics, Brighton and Sussex Medical School, Royal Alexandra Children's Hospital, Brighton, UK
- Escola Nacional de Saúde Pública, Lisboa, Portugal
| | - Leila Karimi
- Dept of Medical Informatics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Maximilian Schieck
- Dept of Paediatric Pneumology and Allergy, University Children's Hospital Regensburg (KUNO), Regensburg, Germany
- Dept of Human Genetics, Hannover Medical School, Hannover, Germany
| | - Lina Pérez-Méndez
- Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
- Dept of Clinic Epidemiology and Biostatistics, Research Unit, Hospital Universitario N.S. de Candelaria, Gerencia de Atención Primaria, Santa Cruz de Tenerife, Spain
| | - Vojko Berce
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
- Dept of Paediatrics, University Medical Centre Maribor, Maribor, Slovenia
| | - Roger Tavendale
- Population Pharmacogenetics Group, Biomedical Research Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - Celeste Eng
- Dept of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - Olaia Sardon
- Division of Paediatric Respiratory Medicine, Hospital Universitario Donostia, San Sebastián, Spain
- Dept of Paediatrics, University of the Basque Country (UPV/EHU), San Sebastián, Spain
| | - Inger Kull
- Dept of Clinical Sciences and Education Södersjukhuset, Karolinska Institutet and Sachs' Children's Hospital, Stockholm, Sweden
| | - Somnath Mukhopadhyay
- Academic Dept of Paediatrics, Brighton and Sussex Medical School, Royal Alexandra Children's Hospital, Brighton, UK
- Population Pharmacogenetics Group, Biomedical Research Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - Munir Pirmohamed
- Dept of Molecular and Clinical Pharmacology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Katia M C Verhamme
- Dept of Medical Informatics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Esteban G Burchard
- Dept of Medicine, University of California, San Francisco, San Francisco, CA, USA
- Dept of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Michael Kabesch
- Dept of Paediatric Pneumology and Allergy, University Children's Hospital Regensburg (KUNO), Regensburg, Germany
| | - Daniel B Hawcutt
- Dept of Women's and Children's Health, University of Liverpool, Liverpool, UK
- Alder Hey Children's Hospital, Liverpool, UK
| | - Erik Melén
- Dept of Clinical Sciences and Education Södersjukhuset, Karolinska Institutet and Sachs' Children's Hospital, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Solna, Sweden
| | - Uroš Potočnik
- Center for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
- Laboratory for Biochemistry, Molecular Biology and Genomics, Faculty for Chemistry and Chemical Engineering, University of Maribor, Maribor, Slovenia
| | - Fook Tim Chew
- Dept of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Kelan G Tantisira
- The Channing Division of Network Medicine, Dept of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Division of Pulmonary and Critical Care Medicine, Dept of Medicine, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA
| | - Steve Turner
- Child Health, University of Aberdeen, Aberdeen, UK
| | - Colin N Palmer
- Population Pharmacogenetics Group, Biomedical Research Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - Carlos Flores
- Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
- Genomics Division, Instituto Tecnológico y de Energías Renovables (ITER), Santa Cruz de Tenerife, Spain
- Instituto de Tecnologías Biomédicas (ITB), Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - Maria Pino-Yanes
- Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
- Genomics and Health Group, Dept of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
- Instituto de Tecnologías Biomédicas (ITB), Universidad de La Laguna, San Cristóbal de La Laguna, Spain
- These authors contributed equally to this work
| | - Anke H Maitland-van der Zee
- Dept of Respiratory Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
- Dept of Paediatric Respiratory Medicine and Allergy, Emma's Children Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- These authors contributed equally to this work
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22
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Sio YY, Shi P, Say YH, Chew FT. Functional variants in the chromosome 4q21 locus contribute to allergic rhinitis risk by modulating the expression of N-acylethanolamine acid amidase. Clin Exp Allergy 2021; 52:127-136. [PMID: 33866639 DOI: 10.1111/cea.13883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/23/2021] [Accepted: 04/10/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Previous haplotype-based association studies identified chromosome 4q21 as an allergic rhinitis (AR) susceptibility locus; however, the functional role of 4q21 single nucleotide polymorphisms (SNPs) on AR risk remains unclear. OBJECTIVE To investigate the functional effect of 4q21 SNPs on AR risk by conducting cohort-based functional genomics and genetic association analyses. METHODS The associations between 4q21 SNPs and mRNA expression levels of three 4q21-associated genes (SDAD1, NAAA and CXCL9) in peripheral blood mononuclear cells (PBMCs) were assessed in a Singapore/Malaysia Chinese cohort (n = 291). Exon expression levels of these genes in PBMCs were tested against the tag-SNP genotypes in a Singapore Chinese cohort (n = 30). Serum protein levels of these genes were assessed with tag-SNP genotypes in a Singapore Chinese cohort (n = 193). SNP functions were characterized through luciferase assay. In a Singapore Chinese cohort (n = 1794), we confirmed the associations between functional SNPs and AR. RESULTS Forty SNPs in 4q21 showed significant associations with NAAA (but not SDAD1 or CXCL9) mRNA expression in PBMCs, of which were tagged by two tag-SNPs, rs17001237 and rs2242470. Both tag-SNPs rs2242470 and rs12648687 (a proxy for rs17001237) were also significantly associated with the expression level of NAAA exon 1. Tag-SNP rs12648687 was correlated with serum NAAA level. A four promoter SNPs-haplotype tagged by rs17001237 influenced the NAAA promoter activity in HEK293T cells. Lastly, individuals carrying the risk allele A of rs12648687 exhibited significantly higher AR risk in the Singapore Chinese population. CONCLUSIONS & CLINICAL RELEVANCE The rs17001237 linkage set SNPs in the 4q21 locus are associated with NAAA expression at both gene and protein levels ex vivo, have functional consequences in vitro and contribute to AR susceptibility in our study population. Our findings provided a better understanding of the genetic mechanism that contributes to AR pathogenesis.
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Affiliation(s)
- Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Ping Shi
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Yee-How Say
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore.,Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR) Kampar Campus, Kampar, Malaysia
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
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23
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Heng AHS, Say YH, Sio YY, Ng YT, Chew FT. Gene variants associated with acne vulgaris presentation and severity: a systematic review and meta-analysis. BMC Med Genomics 2021; 14:103. [PMID: 33849530 PMCID: PMC8045239 DOI: 10.1186/s12920-021-00953-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 03/29/2021] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Multiple factors have been attributed to acne vulgaris predisposition and individual variations in the severity of skin symptoms, and genetics stood out as one of the major factors. METHODS We performed a systematic review on the genes and their variants that have been investigated for association with acne presentation and severity. A random-effect meta-analysis using the allele model (minor allele vs. major allele) was also conducted to provide an overall estimation of risk effects of frequently reported gene variants. This included a subset data of 982 acne cases and 846 controls extracted from our existing GWAS database on various allergic and skin diseases among Singapore Chinese. RESULTS Systematic review of 51 articles covering Asians and Caucasians found 60 genes/loci and their 100 variants implicated in acne; majority of them were in the intron, coding region/missense, and promoter regions. The commonly studied candidate genes/gene families include tumor necrosis factor (TNF), and the interleukin (IL) and cytochrome P450 (CYP) gene families. Our meta-analysis showed that most of the analyzed gene variants exhibited insignificant pooled odds ratio (pOR) and significant heterogeneity between studies. Nevertheless, we found that TNF rs1800629 A allele carriers and CYP17A1 rs743572 T allele carriers had significantly reduced mild acne risk [pOR: 0.60; 95% Confidence Interval (CI): 0.33-0.86] and severe acne risk (pOR: 0.59; 95% CI: 0.40-0.79), respectively, across populations. Overall, FST (follistatin) rs629725 A allele poses a significantly modest increased risk for acne presentation (pOR: 1.19, 95% CI: 1.14, 1.23), but neither TIMP2 (TIMP metallopeptidase inhibitor 2) rs8179090 nor CYP1A1 rs4646903 (pOR: 0.96, 95% CI: 0.80-1.12; pOR: 0.95, 95% CI: 0.83, 1.08), respectively. We discovered 15 novel SNPs in the 3' UTR region of the Toll-like Receptor 4 gene (TLR4) associated with acne presentation. CONCLUSIONS This systematic review and meta-analysis suggest that genes influencing inflammatory responses, specifically TNF, and genes influencing the function and activity of sebaceous glands, specifically CYP17A1 and FST, have potential risk variants for acne presentation and severity across populations. Understanding the genetic susceptibility factors and biological pathways involved in the pathogenesis of acne will help us to gain insights into developing effective acne treatments.
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Affiliation(s)
- Anna Hwee Sing Heng
- Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Department of Biological Sciences, Faculty of Science, National University of Singapore, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Yee-How Say
- Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Department of Biological Sciences, Faculty of Science, National University of Singapore, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Yang Yie Sio
- Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Department of Biological Sciences, Faculty of Science, National University of Singapore, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Yu Ting Ng
- Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Department of Biological Sciences, Faculty of Science, National University of Singapore, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Fook Tim Chew
- Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Department of Biological Sciences, Faculty of Science, National University of Singapore, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore.
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Say YH, Heng AHS, Reginald K, Wong YR, Teh KF, Rawanan Shah SM, Sio YY, Ng YT, Matta SA, Pang SL, Chew FT. Modifiable and non-modifiable epidemiological risk factors for acne, acne severity and acne scarring among Malaysian Chinese: a cross-sectional study. BMC Public Health 2021; 21:601. [PMID: 33773591 PMCID: PMC8005239 DOI: 10.1186/s12889-021-10681-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 03/23/2021] [Indexed: 11/16/2022] Open
Abstract
Background Acne vulgaris, a highly prevalent multifactorial inflammatory skin disease, can be categorised into different severity and scarring grades based on the type, number, and severity of lesions. While many epidemiology studies have investigated the risk factors for acne presentation, fewer studies have specifically studied the risk factors for acne severity and scarring. Therefore, this study investigated the prevalence of acne, acne severity and scarring grades, and their associated non-modifiable and modifiable epidemiological risk factors among Malaysian Chinese. Methods A total of 1840 subjects (1117 cases/723 controls) completed an investigator-administered questionnaire as part of a cross-sectional study, which include socio-demographics, familial history, lifestyle factors, dietary habits, and acne history. Acne cases were further evaluated for their severity (n = 1051) and scarring (n = 1052) grades by a trained personnel. Results Majority of the acne cases (up to 69%) had mild acne or Grade 1/2 scarring, while 21.6% had moderate/severe acne and 5.5% had Grade 3/4 scarring. Males had significantly higher risk of presenting with higher grades of acne scarring. Those who had acne, regardless of severity and scarring grades, had strong positive familial history (either in parents and/or sibling). Frequent consumption (most or all days) of foods that are commonly consumed during breakfast (butter, probiotic drinks, cereals and milk) decreased the risk for acne presentation and higher acne scarring, while periodic consumption (once/twice per week) of nuts and burgers/fast food decreased the risk for higher acne severity. Alcohol drinking was significantly associated with increased risk for acne presentation, while paternal, parental and household smoking were associated with reduced risk of more severe acne. Conclusions In conclusion, positive familial history is a strong predisposing factor in influencing acne presentation, severity and scarring. Frequent consumption of foods that are commonly consumed during breakfast is protective against acne presentation. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-021-10681-4.
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Affiliation(s)
- Yee-How Say
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Anna Hwee Sing Heng
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Kavita Reginald
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, 47500, Petaling Jaya, Selangor, Malaysia
| | - Yi Ru Wong
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, 47500, Petaling Jaya, Selangor, Malaysia
| | - Keng Foo Teh
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, 47500, Petaling Jaya, Selangor, Malaysia
| | - Smyrna Moti Rawanan Shah
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, 47500, Petaling Jaya, Selangor, Malaysia
| | - Yang Yie Sio
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Yu Ting Ng
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Sze Lei Pang
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, Singapore, 117543, Singapore.
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25
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King C, McKenna A, Farzan N, Vijverberg SJ, van der Schee MP, Maitland-van der Zee AH, Arianto L, Bisgaard H, BØnnelykke K, Berce V, PotoČnik U, Repnik K, Carleton B, Daley D, Chew FT, Chiang WC, Sio YY, Cloutier MM, Den Dekker HT, Duijts L, de Jongste JC, Dijk FN, Flores C, Hernandez-Pacheco N, Mukhopadhyay S, Basu K, Tantisira KG, Verhamme KM, Celedón JC, Forno E, Canino G, Francis B, Pirmohamed M, Sinha I, Hawcutt DB. Pharmacogenomic associations of adverse drug reactions in asthma: systematic review and research prioritisation. Pharmacogenomics J 2020; 20:621-628. [PMID: 31949291 PMCID: PMC7502355 DOI: 10.1038/s41397-019-0140-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 11/22/2019] [Accepted: 12/16/2019] [Indexed: 11/16/2022]
Abstract
A systematic review of pharmacogenomic studies capturing adverse drug reactions (ADRs) related to asthma medications was undertaken, and a survey of Pharmacogenomics in Childhood Asthma (PiCA) consortia members was conducted. Studies were eligible if genetic polymorphisms were compared with suspected ADR(s) in a patient with asthma, as either a primary or secondary outcome. Five studies met the inclusion criteria. The ADRs and polymorphisms identified were change in lung function tests (rs1042713), adrenal suppression (rs591118), and decreased bone mineral density (rs6461639) and accretion (rs9896933, rs2074439). Two of these polymorphisms were replicated within the paper, but none had external replication. Priorities from PiCA consortia members (representing 15 institution in eight countries) for future studies were tachycardia (SABA/LABA), adrenal suppression/crisis and growth suppression (corticosteroids), sleep/behaviour disturbances (leukotriene receptor antagonists), and nausea and vomiting (theophylline). Future pharmacogenomic studies in asthma should collect relevant ADR data as well as markers of efficacy.
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Affiliation(s)
- Charlotte King
- Department of Women and Child's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, England
| | - Amanda McKenna
- Department of Women and Child's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, England
| | - Niloufar Farzan
- Department of Respiratory Medicine, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
| | - Susanne J Vijverberg
- Department of Respiratory Medicine, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
| | - Marc P van der Schee
- Department of Respiratory Medicine, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
| | - Anke H Maitland-van der Zee
- Department of Respiratory Medicine, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
| | - Lambang Arianto
- Copenhagen Prospective Studies on Asthma in Childhood, Herlev & Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Hans Bisgaard
- Copenhagen Prospective Studies on Asthma in Childhood, Herlev & Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Klaus BØnnelykke
- Copenhagen Prospective Studies on Asthma in Childhood, Herlev & Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Vojko Berce
- Department of Pediatrics, University Medical Centre Maribor, Maribor, Slovenia
- Centre for Human Molecular Genetics & Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Uros PotoČnik
- Centre for Human Molecular Genetics & Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Katja Repnik
- Centre for Human Molecular Genetics & Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Bruce Carleton
- Division of Translational Therapeutics, Department of Pediatrics, Faculty of Medicine, University of British Columbia, BC Children's Hospital and Research Institute, Vancouver, Canada
| | - Denise Daley
- Division of Translational Therapeutics, Department of Pediatrics, Faculty of Medicine, University of British Columbia, BC Children's Hospital and Research Institute, Vancouver, Canada
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Allergy & Immunology Division, Department of Paediatric Medicine, KK Children's Hospital, Singapore, Singapore
| | - Wen Chin Chiang
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Allergy & Immunology Division, Department of Paediatric Medicine, KK Children's Hospital, Singapore, Singapore
| | - Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Allergy & Immunology Division, Department of Paediatric Medicine, KK Children's Hospital, Singapore, Singapore
| | - Michelle M Cloutier
- Asthma Center, Connecticut Children's Medical Center, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - Herman T Den Dekker
- Department of Pediatrics, Division of Respiratory Medicine & Allergology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Liesbeth Duijts
- Department of Pediatrics, Division of Respiratory Medicine & Allergology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Johan C de Jongste
- Department of Pediatric Pulmonology & Pediatric Allergology, University Medical Center Groningen, University of Groningen, Beatrix Children's Hospital, Groningen, The Netherlands
| | - F Nicole Dijk
- Department of Pediatric Pulmonology & Pediatric Allergology, University Medical Center Groningen, University of Groningen, Beatrix Children's Hospital, Groningen, The Netherlands
- Groningen Research Institute for Asthma & COPD, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Carlos Flores
- Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
- Genomics Division, Instituto Tecnológico y de Energías Renovables (ITER), Santa Cruz de Tenerife, Spain
| | - Natalia Hernandez-Pacheco
- Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
- Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
| | - Somnath Mukhopadhyay
- Academic Department of Paediatrics, Brighton & Sussex Medical School, Royal Alexandra Children's Hospital, Brighton, UK
| | - Kaninika Basu
- Academic Department of Paediatrics, Brighton & Sussex Medical School, Royal Alexandra Children's Hospital, Brighton, UK
| | - Kelan G Tantisira
- The Channing Division of Network Medicine, Department of Medicine, Boston, MA, 02115, USA
- Division of Pulmonary & Critical Care Medicine, Brigham & Women's Hospital & Harvard Medical School, Boston, MA, 02115, USA
| | - Katia M Verhamme
- Department of Medical Informatics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Juan C Celedón
- Division of Pediatric Pulmonary Medicine, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA
| | - Erick Forno
- Division of Pediatric Pulmonary Medicine, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA
| | - Glorisa Canino
- Behavioral Sciences Research Institute, University of Puerto Rico, San Juan, Puerto Rico
| | - Ben Francis
- Department of Biostatistics, Institute of Translational Medicine, University of Liverpool, Liverpool, England
| | - Munir Pirmohamed
- Department of Molecular & Clinical Pharmacology, Institute of Translational Medicine, University of Liverpool, Liverpool, England
| | - Ian Sinha
- Department of Respiratory Medicine, Alder Hey Children's Hospital, Liverpool, England
| | - Daniel B Hawcutt
- Department of Women and Child's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, England.
- NIHR Alder Hey Clinical Research Facility, Alder Hey Children's Hospital, Liverpool, England.
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26
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Tiew PY, Ko FWS, Pang SL, Matta SA, Sio YY, Poh ME, Lau KJX, Mac Aogáin M, Jaggi TK, Ivan FX, Gaultier NE, Uchida A, Drautz-Moses DI, Xu H, Koh MS, Hui DSC, Tee A, Abisheganaden JA, Schuster SC, Chew FT, Chotirmall SH. Environmental fungal sensitisation associates with poorer clinical outcomes in COPD. Eur Respir J 2020; 56:13993003.00418-2020. [PMID: 32341102 PMCID: PMC7453645 DOI: 10.1183/13993003.00418-2020] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 04/15/2020] [Indexed: 01/26/2023]
Abstract
Introduction Allergic sensitisation to fungi such as Aspergillus are associated to poor clinical outcomes in asthma, bronchiectasis and cystic fibrosis; however, clinical relevance in COPD remains unclear. Methods Patients with stable COPD (n=446) and nondiseased controls (n=51) were prospectively recruited across three countries (Singapore, Malaysia and Hong Kong) and screened against a comprehensive allergen panel including house dust mites, pollens, cockroach and fungi. For the first time, using a metagenomics approach, we assessed outdoor and indoor environmental allergen exposure in COPD. We identified key fungi in outdoor air and developed specific-IgE assays against the top culturable fungi, linking sensitisation responses to COPD outcomes. Indoor air and surface allergens were prospectively evaluated by metagenomics in the homes of 11 COPD patients and linked to clinical outcome. Results High frequencies of sensitisation to a broad range of allergens occur in COPD. Fungal sensitisation associates with frequent exacerbations, and unsupervised clustering reveals a “highly sensitised fungal predominant” subgroup demonstrating significant symptomatology, frequent exacerbations and poor lung function. Outdoor and indoor environments serve as important reservoirs of fungal allergen exposure in COPD and promote a sensitisation response to outdoor air fungi. Indoor (home) environments with high fungal allergens associate with greater COPD symptoms and poorer lung function, illustrating the importance of environmental exposures on clinical outcomes in COPD. Conclusion Fungal sensitisation is prevalent in COPD and associates with frequent exacerbations representing a potential treatable trait. Outdoor and indoor (home) environments represent a key source of fungal allergen exposure, amenable to intervention, in “sensitised” COPD. Fungal sensitisation associates with frequent exacerbations in COPD, and represents a treatable trait. Outdoor and indoor environments represent a key source of fungal allergen exposure, amenable to intervention, in “sensitised” COPD patients.https://bit.ly/2Vw3kHi
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Affiliation(s)
- Pei Yee Tiew
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.,Dept of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
| | - Fanny Wai San Ko
- Dept of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong
| | - Sze Lei Pang
- Dept of Biological Sciences, National University of Singapore, Singapore
| | - Sri Anusha Matta
- Dept of Biological Sciences, National University of Singapore, Singapore
| | - Yang Yie Sio
- Dept of Biological Sciences, National University of Singapore, Singapore
| | - Mau Ern Poh
- Dept of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Kenny J X Lau
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore
| | - Micheál Mac Aogáin
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Tavleen Kaur Jaggi
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | | | - Nicolas E Gaultier
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore
| | - Akira Uchida
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore
| | - Daniela I Drautz-Moses
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore
| | - Huiying Xu
- Dept of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore
| | - Mariko Siyue Koh
- Dept of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
| | - David Shu Cheong Hui
- Dept of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong
| | - Augustine Tee
- Dept of Respiratory and Critical Care Medicine, Changi General Hospital, Singapore
| | | | - Stephan C Schuster
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore
| | - Fook Tim Chew
- Dept of Biological Sciences, National University of Singapore, Singapore
| | - Sanjay H Chotirmall
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
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27
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King C, McKenna A, Farzan N, Vijverberg SJ, van der Schee MP, Maitland-van der Zee AH, Arianto L, Bisgaard H, BØnnelykke K, Berce V, PotoČnik U, Repnik K, Carleton B, Daley D, Chew FT, Chiang WC, Sio YY, Cloutier MM, Den Dekker HT, Duijts L, de Jongste JC, Dijk FN, Flores C, Hernandez-Pacheco N, Mukhopadhyay S, Basu K, Tantisira KG, Verhamme KM, Celedón JC, Forno E, Canino G, Francis B, Pirmohamed M, Sinha I, Hawcutt DB. Correction: Pharmacogenomic associations of adverse drug reactions in asthma: systematic review and research prioritization. Pharmacogenomics J 2020; 20:746. [PMID: 32704026 PMCID: PMC7502354 DOI: 10.1038/s41397-020-0178-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Charlotte King
- Department of Women and Child's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, England
| | - Amanda McKenna
- Department of Women and Child's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, England
| | - Niloufar Farzan
- Department of Respiratory Medicine, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
| | - Susanne J Vijverberg
- Department of Respiratory Medicine, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
| | - Marc P van der Schee
- Department of Respiratory Medicine, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
| | - Anke H Maitland-van der Zee
- Department of Respiratory Medicine, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
| | - Lambang Arianto
- Copenhagen Prospective Studies on Asthma in Childhood, Herlev & Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Hans Bisgaard
- Copenhagen Prospective Studies on Asthma in Childhood, Herlev & Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Klaus BØnnelykke
- Copenhagen Prospective Studies on Asthma in Childhood, Herlev & Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Vojko Berce
- Department of Pediatrics, University Medical Centre Maribor, Maribor, Slovenia.,Centre for Human Molecular Genetics & Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Uros PotoČnik
- Centre for Human Molecular Genetics & Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Katja Repnik
- Centre for Human Molecular Genetics & Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Bruce Carleton
- Division of Translational Therapeutics, Department of Pediatrics, Faculty of Medicine, University of British Columbia, BC Children's Hospital and Research Institute, Vancouver, Canada
| | - Denise Daley
- Division of Translational Therapeutics, Department of Pediatrics, Faculty of Medicine, University of British Columbia, BC Children's Hospital and Research Institute, Vancouver, Canada
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore, & the Allergy & Immunology Division, Department of Paediatric Medicine, KK Children's Hospital, Singapore, Singapore
| | - Wen Chin Chiang
- Department of Biological Sciences, National University of Singapore, Singapore, & the Allergy & Immunology Division, Department of Paediatric Medicine, KK Children's Hospital, Singapore, Singapore
| | - Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore, & the Allergy & Immunology Division, Department of Paediatric Medicine, KK Children's Hospital, Singapore, Singapore
| | - Michelle M Cloutier
- Asthma Center, Connecticut Children's Medical Center, University of Connecticut Health Center, Connecticut, USA
| | - Herman T Den Dekker
- Department of Pediatrics, Division of Respiratory Medicine & Allergology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Liesbeth Duijts
- Department of Pediatrics, Division of Respiratory Medicine & Allergology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Johan C de Jongste
- Department of Pediatric Pulmonology & Pediatric Allergology, University Medical Center Groningen, University of Groningen, Beatrix Children's Hospital, Groningen, The Netherlands
| | - F Nicole Dijk
- Department of Pediatric Pulmonology & Pediatric Allergology, University Medical Center Groningen, University of Groningen, Beatrix Children's Hospital, Groningen, The Netherlands.,Groningen Research Institute for Asthma & COPD, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Carlos Flores
- Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain.,CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain.,Genomics Division, Instituto Tecnológico y de Energías Renovables (ITER), Santa Cruz de Tenerife, Spain
| | - Natalia Hernandez-Pacheco
- Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain.,Genomics and Health Group, Department of Biochemistry, Microbiology, Cell Biology and Genetics, Universidad de La Laguna, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
| | - Somnath Mukhopadhyay
- Academic Department of Paediatrics, Brighton & Sussex Medical School, Royal Alexandra Children's Hospital, Brighton, UK
| | - Kaninika Basu
- Academic Department of Paediatrics, Brighton & Sussex Medical School, Royal Alexandra Children's Hospital, Brighton, UK
| | - Kelan G Tantisira
- The Channing Division of Network Medicine, Department of Medicine, Brigham & Women's Hospital & Harvard Medical School, Boston, MA, 02115, USA.,Division of Pulmonary & Critical Care Medicine, Brigham & Women's Hospital & Harvard Medical School, Boston, MA, 02115, USA
| | - Katia M Verhamme
- Department of Medical Informatics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Juan C Celedón
- Division of Pediatric Pulmonary Medicine, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA
| | - Erick Forno
- Division of Pediatric Pulmonary Medicine, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA
| | - Glorisa Canino
- Behavioral Sciences Research Institute, University of Puerto Rico, San Juan, Puerto Rico
| | - Ben Francis
- Department of Biostatistics, Institute of Translational Medicine, University of Liverpool, Liverpool, England
| | - Munir Pirmohamed
- Department of Molecular & Clinical Pharmacology, Institute of Translational Medicine, University of Liverpool, Liverpool, England
| | - Ian Sinha
- Department of Respiratory Medicine, Alder Hey Children's Hospital, Liverpool, England
| | - Daniel B Hawcutt
- Department of Women and Child's Health, Institute of Translational Medicine, University of Liverpool, Liverpool, England. .,NIHR Alder Hey Clinical Research Facility, Alder Hey Children's Hospital, Liverpool, England.
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28
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Sio YY, Anantharaman R, Lee SQE, Matta SA, Ng YT, Chew FT. The Asthma-associated PER1-like domain-containing protein 1 (PERLD1) Haplotype Influences Soluble Glycosylphosphatidylinositol Anchor Protein (sGPI-AP) Levels in Serum and Immune Cell Proliferation. Sci Rep 2020; 10:715. [PMID: 31959860 PMCID: PMC6970992 DOI: 10.1038/s41598-020-57592-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 01/03/2020] [Indexed: 11/16/2022] Open
Abstract
Post-glycosylphosphatidylinositol (GPI) attachment to proteins 3, also known as PGAP3 or PERLD1 (PER1-like domain-containing protein 1), participates in the lipid remodeling process of glycosylphosphatidylinositol (GPI) anchor proteins during post-translational modification. Functional defect in PERLD1 was previously hypothesized to influence this process in T-cells and their subsequent activation and proliferation. This current study aims to functionally characterize PERLD1 genetic variants and relate this with human immune cells proliferation rate upon stimulation. We first showed the association between a PERLD1 tag-single nucleotide polymorphism (tagSNP), rs2941504, and the development of asthma in our study population. This association remained significant after conditioning for the other asthma-associated SNP rs8076131 that is also located within the 17q12–21 region. Subsequent sequencing of 40 unrelated Singapore Chinese individuals identified 12 more common PERLD1 SNPs (minor allele frequency > 5%) that are in linkage disequilibrium (LD, r2 > 0.8) with rs2941504. Through in vitro studies, 7 of these SNPs were found to form a functional haplotype that influences alternative splicing of PERLD1 transcript. This result was validated in human peripheral blood mononuclear cell (PBMC), where the minor haplotype (Hap2) was shown to be associated with significantly increased PERLD1 truncated transcript. Additionally, Hap2 was found to be related to increased levels of several soluble GPI-anchored proteins (such as sCD55 and sCD59) in serum. Elevated sCD55 in the serum was demonstrated to reduce the proliferation rate of PBMCs upon phytohaemagglutinin (PHA) stimulation. Taken together, the current study has shown a functional PERLD1 haplotype, which modifies PBMC sensitivity upon stimulation and may contribute to the individual’s susceptibility to allergic asthma.
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Affiliation(s)
- Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Ramani Anantharaman
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Sean Qiu En Lee
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Yu Ting Ng
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore.
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29
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Mac Aogáin M, Tiew PY, Lim AYH, Low TB, Tan GL, Hassan T, Ong TH, Pang SL, Lee ZY, Gwee XW, Martinus C, Sio YY, Matta SA, Ong TC, Tiong YS, Wong KN, Narayanan S, Au VB, Marlier D, Keir HR, Tee A, Abisheganaden JA, Koh MS, Wang DY, Connolly JE, Chew FT, Chalmers JD, Chotirmall SH. Distinct "Immunoallertypes" of Disease and High Frequencies of Sensitization in Non-Cystic Fibrosis Bronchiectasis. Am J Respir Crit Care Med 2020; 199:842-853. [PMID: 30265843 DOI: 10.1164/rccm.201807-1355oc] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
RATIONALE Allergic sensitization is associated with poor clinical outcomes in asthma, chronic obstructive pulmonary disease, and cystic fibrosis; however, its presence, frequency, and clinical significance in non-cystic fibrosis bronchiectasis remain unclear. OBJECTIVES To determine the frequency and geographic variability that exists in a sensitization pattern to common and specific allergens, including house dust mite and fungi, and to correlate such patterns to airway immune-inflammatory status and clinical outcomes in bronchiectasis. METHODS Patients with bronchiectasis were recruited in Asia (Singapore and Malaysia) and the United Kingdom (Scotland) (n = 238), forming the Cohort of Asian and Matched European Bronchiectasis, which matched recruited patients on age, sex, and bronchiectasis severity. Specific IgE response against a range of common allergens was determined, combined with airway immune-inflammatory status and correlated to clinical outcomes. Clinically relevant patient clusters, based on sensitization pattern and airway immune profiles ("immunoallertypes"), were determined. MEASUREMENTS AND MAIN RESULTS A high frequency of sensitization to multiple allergens was detected in bronchiectasis, exceeding that in a comparator cohort with allergic rhinitis (n = 149). Sensitization was associated with poor clinical outcomes, including decreased pulmonary function and more severe disease. "Sensitized bronchiectasis" was classified into two immunoallertypes: one fungal driven and proinflammatory, the other house dust mite driven and chemokine dominant, with the former demonstrating poorer clinical outcome. CONCLUSIONS Allergic sensitization occurs at high frequency in patients with bronchiectasis recruited from different global centers. Improving endophenotyping of sensitized bronchiectasis, a clinically significant state, and a "treatable trait" permits therapeutic intervention in appropriate patients, and may allow improved stratification in future bronchiectasis research and clinical trials.
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Affiliation(s)
- Micheál Mac Aogáin
- 1 Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Pei Yee Tiew
- 1 Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.,2 Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
| | - Albert Yick Hou Lim
- 3 Department of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore
| | - Teck Boon Low
- 4 Department of Respiratory and Critical Care Medicine, Changi General Hospital, Singapore
| | - Gan Liang Tan
- 2 Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
| | - Tidi Hassan
- 5 Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Thun How Ong
- 2 Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
| | - Sze Lei Pang
- 6 Department of Biological Sciences, National University of Singapore, Singapore.,7 Institute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | - Zi Yang Lee
- 6 Department of Biological Sciences, National University of Singapore, Singapore
| | - Xiao Wei Gwee
- 6 Department of Biological Sciences, National University of Singapore, Singapore
| | - Christopher Martinus
- 6 Department of Biological Sciences, National University of Singapore, Singapore
| | - Yang Yie Sio
- 6 Department of Biological Sciences, National University of Singapore, Singapore
| | - Sri Anusha Matta
- 6 Department of Biological Sciences, National University of Singapore, Singapore
| | - Tan Ching Ong
- 6 Department of Biological Sciences, National University of Singapore, Singapore
| | - Yuen Seng Tiong
- 6 Department of Biological Sciences, National University of Singapore, Singapore
| | - Kang Ning Wong
- 6 Department of Biological Sciences, National University of Singapore, Singapore
| | | | | | - Damien Marlier
- 8 Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Holly R Keir
- 9 University of Dundee, Ninewells Hospital and Medical School, Dundee, Scotland; and
| | - Augustine Tee
- 4 Department of Respiratory and Critical Care Medicine, Changi General Hospital, Singapore
| | | | - Mariko Siyue Koh
- 2 Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
| | - De Yun Wang
- 10 Department of Otolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - John E Connolly
- 8 Institute of Molecular and Cell Biology, A*STAR, Singapore
| | - Fook Tim Chew
- 6 Department of Biological Sciences, National University of Singapore, Singapore
| | - James D Chalmers
- 9 University of Dundee, Ninewells Hospital and Medical School, Dundee, Scotland; and
| | - Sanjay H Chotirmall
- 1 Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
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Sio YY, Matta SA, Ng YT, Chew FT. Epistasis between phenylethanolamine N-methyltransferase and β2-adrenergic receptor influences extracellular epinephrine level and associates with the susceptibility to allergic asthma. Clin Exp Allergy 2020; 50:352-363. [PMID: 31855300 DOI: 10.1111/cea.13552] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 12/03/2019] [Accepted: 12/08/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Reduced extracellular epinephrine level often associates with asthma-related symptoms; however, the correlation between asthma and genetic variants in genes participating in the epinephrine signalling pathway remains unclear. OBJECTIVE To characterize the functions of single nucleotide polymorphisms (SNPs) in phenylethanolamine N-methyltransferase (PNMT) and β2-adrenergic receptor (ADRB2), and to study the effects, including both direct and epistatic, of these SNPs on serum epinephrine level and asthma susceptibility. METHODS Single nucleotide polymorphisms functions were characterized through in vitro luciferase assay. ADRB2 gene expression level in peripheral blood mononuclear cell (PBMC) was measured by transcriptome sequencing and expression microarray on two separate Asian cohorts (NUS-UTAR, n = 278 and NUS-TA, n = 58). Serum epinephrine level was assessed on a Singapore Chinese cohort (NUS-SH, n = 314) with 155 asthmatic and 159 non-asthmatic subjects. A separate Singapore Chinese cohort (NUS-G, n = 3009) was genotyped to show disease association (direct and epistatic effect) of functional SNPs in PNMT and ADRB2. RESULTS Reduced serum epinephrine level was associated with increased asthma risk in Singapore Chinese. The minor allele of rs876493 was shown to increase PNMT promoter activity and reduce asthma risk. Multiple SNPs in ADRB2 forms a haplotype that was associated with the differential promoter activity of this gene. In this haplotype, rs11168070 was associated directly with ADRB2 expression in PBMCs. Both minor alleles from rs876493 and rs11168070 contribute synergistically to reduce asthma risk and increase serum epinephrine level. CONCLUSION AND CLINICAL RELEVANCE Epistatic interaction between genetic variants from PNMT (rs876493) and ADRB2 (rs11168070) is associated with serum epinephrine level and the susceptibility of asthma. Our findings improved the current understanding of the genetic basis of this disease, while genotypic states of these SNPs may serve as potential biomarkers to predict susceptibility to the disease.
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Affiliation(s)
- Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore City, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, National University of Singapore, Singapore City, Singapore
| | - Yu Ting Ng
- Department of Biological Sciences, National University of Singapore, Singapore City, Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore City, Singapore
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Pang SL, Ho KL, Waterman J, Rambo RP, Teh AH, Mathavan I, Harris G, Beis K, Say YH, Anusha MS, Sio YY, Chew FT, Ng CL. Crystal structure and epitope analysis of house dust mite allergen Der f 21. Sci Rep 2019; 9:4933. [PMID: 30894561 PMCID: PMC6426935 DOI: 10.1038/s41598-019-40879-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 02/25/2019] [Indexed: 01/07/2023] Open
Abstract
Group 21 and 5 allergens are homologous house dust mite proteins known as mid-tier allergens. To reveal the biological function of group 21 allergens and to understand better the allergenicity of the rDer f 21 allergen, we determined the 1.5 Å crystal structure of rDer f 21 allergen from Dermatophagoides farinae. The rDer f 21 protein consists of a three helical bundle, similar to available structures of group 21 and homologous group 5 allergens. The rDer f 21 dimer forms a hydrophobic binding pocket similar to the one in the Der p 5 allergen, which indicates that both of the homologous groups could share a similar function. By performing structure-guided mutagenesis, we mutated all 38 surface-exposed polar residues of the rDer f 21 allergen and carried out immuno-dot blot assays using 24 atopic sera. Six residues, K10, K26, K42, E43, K46, and K48, which are located in the region between the N-terminus and the loop 1 of rDer f 21 were identified as the major IgE epitopes of rDer f 21. Epitope mapping of all potential IgE epitopes on the surface of the rDer f 21 crystal structure revealed heterogeneity in the sIgE recognition of the allergen epitopes in atopic individuals. The higher the allergen-sIgE level of an individual, the higher the number of epitope residues that are found in the allergen. The results illustrate the clear correlation between the number of specific major epitope residues in an allergen and the sIgE level of the atopic population.
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Affiliation(s)
- Sze Lei Pang
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
| | - Kok Lian Ho
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Jitka Waterman
- Diamond Light Source, Harwell Science & Innovation Campus, Didcot, Oxfordshire, OX11 0DE, UK
| | - Robert Paul Rambo
- Diamond Light Source, Harwell Science & Innovation Campus, Didcot, Oxfordshire, OX11 0DE, UK
| | - Aik-Hong Teh
- Centre for Chemical Biology, Universiti Sains Malaysia, 10 Persiaran Bukit Jambul, 11900 Bayan Lepas, Penang, Malaysia
| | - Indran Mathavan
- Department of Life Sciences, Imperial College London, South Kensington, London, SW7 2AZ, United Kingdom
- Research Complex at Harwell, Rutherford Appleton Laboratory, Oxfordshire, OX11 0FA, United Kingdom
| | - Gemma Harris
- Research Complex at Harwell, Rutherford Appleton Laboratory, Oxfordshire, OX11 0FA, United Kingdom
| | - Konstantinos Beis
- Department of Life Sciences, Imperial College London, South Kensington, London, SW7 2AZ, United Kingdom
- Research Complex at Harwell, Rutherford Appleton Laboratory, Oxfordshire, OX11 0FA, United Kingdom
| | - Yee-How Say
- Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR) Perak Campus, 31900 Kampar, Perak, Malaysia
| | - Matta Sri Anusha
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543, Singapore, Singapore
| | - Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543, Singapore, Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, 117543, Singapore, Singapore.
| | - Chyan Leong Ng
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia.
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Matta SA, Blanchet-Rethore S, Sio YY, Suri BK, Andiappan AK, Anantharaman R, Piketty C, Bourdes V, Chew FT. Different phenotypes and factors associated with atopic dermatitis in the young adult Singaporean Chinese population: A cross-sectional study. World Allergy Organ J 2019; 12:100008. [PMID: 30937133 PMCID: PMC6439406 DOI: 10.1016/j.waojou.2018.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 11/07/2018] [Accepted: 11/28/2018] [Indexed: 10/28/2022] Open
Abstract
Background Atopic dermatitis (AD) is a chronic allergic disease typically accompanied by atopy and thus, a tendency to develop allergic diseases such as allergic rhinitis, asthma or food allergies. Currently, individuals with AD are classified into those presenting with AD alone and those presenting with AD along with other allergic diseases (AD+). It is important to identify the various endophenotypes of AD using anthropometric, environmental, socio-economic, and disease history data in order to improve disease management. To characterize the phenotypic differences among Singaporean Chinese individuals with AD alone and AD+, and identify the socioeconomic, lifestyle, and environmental factors associated with these different presentations. Methods Based on data collected via a standardized/validated questionnaire, 4604 participants (mean age: 22.1 years) were classified into three groups: 1) AD alone group; 2) AD with other allergic diseases group (AD+); and 3) Control group. Results Participants were less sensitized to common inhalant allergens in the AD alone group versus the Control group (67% vs. 72%, respectively; p < 0.05).High Body Mass Index (i.e., BMI > 23) was associated with the disease and the difference was more pronounced in the AD alone group compared to the AD+ group (Odds Ratio: 1.38; 95% Confidence Interval: 1.4-1.67; p < 0.001). No major differences in habits were observed between the AD alone and AD+ groups. Conclusions The two presentations of AD may have different underlying pathogenesis and associated risk factors.
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Affiliation(s)
- Sri Anusha Matta
- Department of Biological Science, National University of Singapore, Singapore
| | | | - Yang Yie Sio
- Department of Biological Science, National University of Singapore, Singapore
| | - Bani Kaur Suri
- Department of Biological Science, National University of Singapore, Singapore
| | - Anand Kumar Andiappan
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (ASTAR), Singapore
| | - Ramani Anantharaman
- Department of Biological Science, National University of Singapore, Singapore
| | | | - Valerie Bourdes
- Nestlé Skin Health-Galderma R&D, Sophia Antipolis, Biot, France
| | - Fook Tim Chew
- Department of Biological Science, National University of Singapore, Singapore
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Mac Aogáin M, Chandrasekaran R, Lim AYH, Low TB, Tan GL, Hassan T, Ong TH, Hui Qi Ng A, Bertrand D, Koh JY, Pang SL, Lee ZY, Gwee XW, Martinus C, Sio YY, Matta SA, Chew FT, Keir HR, Connolly JE, Abisheganaden JA, Koh MS, Nagarajan N, Chalmers JD, Chotirmall SH. Immunological corollary of the pulmonary mycobiome in bronchiectasis: the CAMEB study. Eur Respir J 2018; 52:13993003.00766-2018. [PMID: 29880655 PMCID: PMC6092680 DOI: 10.1183/13993003.00766-2018] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 05/26/2018] [Indexed: 01/05/2023]
Abstract
Understanding the composition and clinical importance of the fungal mycobiome was recently identified as a key topic in a “research priorities” consensus statement for bronchiectasis. Patients were recruited as part of the CAMEB study: an international multicentre cross-sectional Cohort of Asian and Matched European Bronchiectasis patients. The mycobiome was determined in 238 patients by targeted amplicon shotgun sequencing of the 18S–28S rRNA internally transcribed spacer regions ITS1 and ITS2. Specific quantitative PCR for detection of and conidial quantification for a range of airway Aspergillus species was performed. Sputum galactomannan, Aspergillus specific IgE, IgG and TARC (thymus and activation regulated chemokine) levels were measured systemically and associated to clinical outcomes. The bronchiectasis mycobiome is distinct and characterised by specific fungal genera, including Aspergillus, Cryptococcus and Clavispora. Aspergillus fumigatus (in Singapore/Kuala Lumpur) and Aspergillus terreus (in Dundee) dominated profiles, the latter associating with exacerbations. High frequencies of Aspergillus-associated disease including sensitisation and allergic bronchopulmonary aspergillosis were detected. Each revealed distinct mycobiome profiles, and associated with more severe disease, poorer pulmonary function and increased exacerbations. The pulmonary mycobiome is of clinical relevance in bronchiectasis. Screening for Aspergillus-associated disease should be considered even in apparently stable patients. The airway mycobiome in bronchiectasis is associated with clinically significant diseasehttp://ow.ly/MCKj30knVrn
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Affiliation(s)
- Micheál Mac Aogáin
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.,These two authors contributed equally to this work
| | - Ravishankar Chandrasekaran
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore.,These two authors contributed equally to this work
| | - Albert Yick Hou Lim
- Dept of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore
| | - Teck Boon Low
- Dept of Respiratory and Critical Care Medicine, Changi General Hospital, Singapore
| | - Gan Liang Tan
- Dept of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
| | - Tidi Hassan
- Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Thun How Ong
- Dept of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
| | | | | | - Jia Yu Koh
- Genome Institute of Singapore, A*STAR, Singapore
| | - Sze Lei Pang
- Dept of Biological Sciences, National University of Singapore, Singapore.,Institute of Systems Biology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Zi Yang Lee
- Dept of Biological Sciences, National University of Singapore, Singapore
| | - Xiao Wei Gwee
- Dept of Biological Sciences, National University of Singapore, Singapore
| | | | - Yang Yie Sio
- Dept of Biological Sciences, National University of Singapore, Singapore
| | - Sri Anusha Matta
- Dept of Biological Sciences, National University of Singapore, Singapore
| | - Fook Tim Chew
- Dept of Biological Sciences, National University of Singapore, Singapore
| | - Holly R Keir
- Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | | | | | - Mariko Siyue Koh
- Dept of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore
| | | | - James D Chalmers
- Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - Sanjay H Chotirmall
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
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Farzan N, Vijverberg SJ, Andiappan AK, Arianto L, Berce V, Blanca-López N, Bisgaard H, Bønnelykke K, Burchard EG, Campo P, Canino G, Carleton B, Celedón JC, Chew FT, Chiang WC, Cloutier MM, Daley D, Den Dekker HT, Dijk FN, Duijts L, Flores C, Forno E, Hawcutt DB, Hernandez-Pacheco N, de Jongste JC, Kabesch M, Koppelman GH, Manolopoulos VG, Melén E, Mukhopadhyay S, Nilsson S, Palmer CN, Pino-Yanes M, Pirmohamed M, Potočnik U, Raaijmakers JA, Repnik K, Schieck M, Sio YY, Smyth RL, Szalai C, Tantisira KG, Turner S, van der Schee MP, Verhamme KM, Maitland-van der Zee AH. Rationale and design of the multiethnic Pharmacogenomics in Childhood Asthma consortium. Pharmacogenomics 2017. [PMID: 28639505 DOI: 10.2217/pgs-2017-0035] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
AIM International collaboration is needed to enable large-scale pharmacogenomics studies in childhood asthma. Here, we describe the design of the Pharmacogenomics in Childhood Asthma (PiCA) consortium. MATERIALS & METHODS Investigators of each study participating in PiCA provided data on the study characteristics by answering an online questionnaire. RESULTS A total of 21 studies, including 14,227 children/young persons (58% male), from 12 different countries are currently enrolled in the PiCA consortium. Fifty six percent of the patients are Caucasians. In total, 7619 were inhaled corticosteroid users. Among patients from 13 studies with available data on asthma exacerbations, a third reported exacerbations despite inhaled corticosteroid use. In the future pharmacogenomics studies within the consortium, the pharmacogenomics analyses will be performed separately in each center and the results will be meta-analyzed. CONCLUSION PiCA is a valuable platform to perform pharmacogenetics studies within a multiethnic pediatric asthma population.
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Affiliation(s)
- Niloufar Farzan
- Division of Pharmacoepidemiology & Clinical Pharmacology, Faculty of Science, Utrecht University, Utrecht, The Netherlands.,Department of Respiratory Medicine, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
| | - Susanne J Vijverberg
- Division of Pharmacoepidemiology & Clinical Pharmacology, Faculty of Science, Utrecht University, Utrecht, The Netherlands.,Department of Respiratory Medicine, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
| | - Anand K Andiappan
- Singapore Immunology Network, Agency for Science, Technology & Research, Singapore 138648, Singapore
| | - Lambang Arianto
- Copenhagen Prospective Studies on Asthma in Childhood, Herlev & Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Vojko Berce
- Department of Pediatrics, University Medical Centre Maribor, Maribor, Slovenia.,Centre for Human Molecular Genetics & Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | | | - Hans Bisgaard
- Copenhagen Prospective Studies on Asthma in Childhood, Herlev & Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Klaus Bønnelykke
- Copenhagen Prospective Studies on Asthma in Childhood, Herlev & Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Esteban G Burchard
- Departments of Medicine, Bioengineering & Therapeutic Sciences University of California, San Francisco, CA 94110, USA
| | - Paloma Campo
- Allergy Unit, IBIMA, Regional University Hospital of Malaga, Malaga, Spain
| | - Glorisa Canino
- Behavioral Sciences institute, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico
| | - Bruce Carleton
- Department of Pediatrics, Faculty of Medicine, University of British Columbia, Vancouver, Canada
| | - Juan C Celedón
- Division of Pulmonary Medicine, Allergy, & Immunology, Children's Hospital of Pittsburgh of the University of Pittsburgh Medical Center, University of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore, & the Allergy & Immunology Division, Department of Paediatric Medicine, KK Children's Hospital, Singapore
| | - Wen Chin Chiang
- Department of Biological Sciences, National University of Singapore, Singapore, & the Allergy & Immunology Division, Department of Paediatric Medicine, KK Children's Hospital, Singapore
| | - Michelle M Cloutier
- Asthma Center, Connecticut Children's Medical Center, University of Connecticut Health Center, CT 06106, USA
| | - Denis Daley
- Respiratory Division, Department of Medicine, University of British Columbia, Vancouver, Canada
| | - Herman T Den Dekker
- Department of Pediatrics, Division of Respiratory Medicine & Allergology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - F Nicole Dijk
- Department of Pediatric Pulmonology & Pediatric Allergology, University Medical Center Groningen, University of Groningen, Beatrix Children's Hospital, Groningen, The Netherlands.,Groningen Research Institute for Asthma & COPD, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Liesbeth Duijts
- Department of Pediatrics, Division of Respiratory Medicine & Allergology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Pediatrics, Division of Neonatology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Carlos Flores
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain.,Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Erick Forno
- Division of Pulmonary Medicine, Allergy, & Immunology, Children's Hospital of Pittsburgh of the University of Pittsburgh Medical Center, University of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Daniel B Hawcutt
- Alder Hey Children's Hospital, Liverpool, UK.,Department of Women's & Children's Health, University of Liverpool, Liverpool, UK
| | - Natalia Hernandez-Pacheco
- Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Johan C de Jongste
- Department of Pediatrics, Division of Respiratory Medicine & Allergology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Michael Kabesch
- Department of Pediatric Pneumology & Allergy, University Children's Hospital Regensburg (KUNO), Regensburg, Germany
| | - Gerard H Koppelman
- Department of Pediatric Pulmonology & Pediatric Allergology, University Medical Center Groningen, University of Groningen, Beatrix Children's Hospital, Groningen, The Netherlands.,Groningen Research Institute for Asthma & COPD, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Vangelis G Manolopoulos
- Laboratory of Pharmacology, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Erik Melén
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Centre of Occupational & Environmental Medicine, Stockholm County Council, Stockholm, Sweden
| | - Somnath Mukhopadhyay
- Academic Department of Paediatrics, Brighton & Sussex Medical School, Royal Alexandra Children's Hospital, Brighton, UK.,Population Pharmacogenetics Group, Biomedical Research Institute, Ninewells Hospital & Medical School University of Dundee, Dundee, UK
| | - Sara Nilsson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Centre of Occupational & Environmental Medicine, Stockholm County Council, Stockholm, Sweden
| | - Colin N Palmer
- Population Pharmacogenetics Group, Biomedical Research Institute, Ninewells Hospital & Medical School University of Dundee, Dundee, UK
| | - Maria Pino-Yanes
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain.,Research Unit, Hospital Universitario N.S. de Candelaria, Universidad de La Laguna, Santa Cruz de Tenerife, Spain
| | - Munir Pirmohamed
- Department of Molecular & Clinical Pharmacology, Institute of Translational Medicine, University of Liverpool, Liverpool, UK
| | - Uros Potočnik
- Centre for Human Molecular Genetics & Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia.,Faculty for Chemistry & Chemical Engineering, University of Maribor, Maribor, Slovenia
| | - Jan A Raaijmakers
- Division of Pharmacoepidemiology & Clinical Pharmacology, Faculty of Science, Utrecht University, Utrecht, The Netherlands
| | - Katja Repnik
- Centre for Human Molecular Genetics & Pharmacogenomics, Faculty of Medicine, University of Maribor, Maribor, Slovenia.,Faculty for Chemistry & Chemical Engineering, University of Maribor, Maribor, Slovenia
| | - Maximilian Schieck
- Department of Pediatric Pneumology & Allergy, University Children's Hospital Regensburg (KUNO), Regensburg, Germany.,Department of Human Genetics, Hannover Medical School, Hannover, Germany
| | - Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore, & the Allergy & Immunology Division, Department of Paediatric Medicine, KK Children's Hospital, Singapore
| | - Rosalind L Smyth
- Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Csaba Szalai
- Department of Genetics, Cell & Immuno-biology, Semmelweis University, Budapest, Hungary.,Central Laboratory, Heim Pal Children Hospital, Budapest, Hungary
| | - Kelan G Tantisira
- The Channing Division of Network Medicine, Department of Medicine, Brigham & Women's hospital & Harvard Medical School, Boston, MA 02115, USA.,Division of Pulmonary & Critical Care Medicine, Brigham & Women's Hospital & Harvard Medical School, Boston, MA 02115, USA
| | - Steve Turner
- Child Health, University of Aberdeen, Aberdeen, UK
| | - Marc P van der Schee
- Department of Respiratory Medicine, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
| | - Katia M Verhamme
- Department of Medical Informatics, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Anke H Maitland-van der Zee
- Division of Pharmacoepidemiology & Clinical Pharmacology, Faculty of Science, Utrecht University, Utrecht, The Netherlands.,Department of Respiratory Medicine, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, The Netherlands
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Chng KR, Tay ASL, Li C, Ng AHQ, Wang J, Suri BK, Matta SA, McGovern N, Janela B, Wong XFCC, Sio YY, Au BV, Wilm A, De Sessions PF, Lim TC, Tang MBY, Ginhoux F, Connolly JE, Lane EB, Chew FT, Common JEA, Nagarajan N. Whole metagenome profiling reveals skin microbiome-dependent susceptibility to atopic dermatitis flare. Nat Microbiol 2016; 1:16106. [PMID: 27562258 DOI: 10.1038/nmicrobiol.2016.106] [Citation(s) in RCA: 231] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 06/01/2016] [Indexed: 12/19/2022]
Abstract
Whole metagenome analysis has the potential to reveal functional triggers of skin diseases, but issues of cost, robustness and sampling efficacy have limited its application. Here, we have established an alternative, clinically practical and robust metagenomic analysis protocol and applied it to 80 skin microbiome samples epidemiologically stratified for atopic dermatitis (AD). We have identified distinct non-flare, baseline skin microbiome signatures enriched for Streptococcus and Gemella but depleted for Dermacoccus in AD-prone versus normal healthy skin. Bacterial challenge assays using keratinocytes and monocyte-derived dendritic cells established distinct IL-1-mediated, innate and Th1-mediated adaptive immune responses with Staphylococcus aureus and Staphylococcus epidermidis. Bacterial differences were complemented by perturbations in the eukaryotic community and functional shifts in the microbiome-wide gene repertoire, which could exacerbate a dry and alkaline phenotype primed for pathogen growth and inflammation in AD-susceptible skin. These findings provide insights into how the skin microbial community, skin surface microenvironment and immune system cross-modulate each other, escalating the destructive feedback cycle between them that leads to AD flare.
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Affiliation(s)
- Kern Rei Chng
- Genome Institute of Singapore, Singapore 138672, Singapore
| | | | - Chenhao Li
- Genome Institute of Singapore, Singapore 138672, Singapore
| | | | - Jingjing Wang
- Institute of Molecular and Cell Biology, Singapore 138673, Singapore.,Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450001, China.,Institute of Biomedical Studies, Baylor University, Waco, Texas 76798, USA
| | - Bani Kaur Suri
- Department of Biological Sciences, National University of Singapore, Singapore 117543
| | - Sri Anusha Matta
- Department of Biological Sciences, National University of Singapore, Singapore 117543
| | - Naomi McGovern
- Singapore Immunology Network, Singapore 138648, Singapore
| | | | | | - Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore 117543
| | - Bijin Veonice Au
- Institute of Molecular and Cell Biology, Singapore 138673, Singapore
| | - Andreas Wilm
- Genome Institute of Singapore, Singapore 138672, Singapore
| | | | - Thiam Chye Lim
- Division of Plastic, Reconstructive &Aesthetic Surgery, National University Health System, Singapore 119074, Singapore
| | | | | | - John E Connolly
- Institute of Molecular and Cell Biology, Singapore 138673, Singapore.,Institute of Biomedical Studies, Baylor University, Waco, Texas 76798, USA.,Department of Microbiology and Immunology, National University of Singapore, Singapore 117545, Singapore
| | | | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore 117543
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Andiappan AK, Sio YY, Lee B, Suri BK, Matta SA, Lum J, Foo S, Koh G, Liu J, Zolezzi F, Poidinger M, Wang DY, Rotzschke O, Chew FT. Functional variants of 17q12-21 are associated with allergic asthma but not allergic rhinitis. J Allergy Clin Immunol 2015; 137:758-66.e3. [PMID: 26483175 DOI: 10.1016/j.jaci.2015.08.038] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 08/02/2015] [Accepted: 08/25/2015] [Indexed: 01/12/2023]
Abstract
BACKGROUND Allergic rhinitis (AR) and asthma are common allergic conditions with a shared genetic component to their cause. The 17q12-21 locus includes several genes that have been linked to asthma susceptibility, but the role of this locus in AR is unclear. Asthma and AR in adults of Chinese ethnicity in Singapore are predominately caused by sensitization against house dust mites with a nearly complete penetrance of the allergen, which presents a unique opportunity for accurately identifying genetic associations with allergic diseases. OBJECTIVE We sought to define the functional role of 17q12-21 in patients with AR and allergic asthma. METHODS We asked whether single nucleotide polymorphisms (SNPs) in the 17q12-21 locus were associated with AR or asthma in a cohort of 3460 ethnic Chinese subjects residing in Singapore (1435 in the discovery phase and 2025 in the validation phase). Full-blood mRNA gene expression data, plasma IgE levels, and immune cell frequencies in peripheral blood were tested against the tag SNP genotypes. Luciferase assays were used to measure the effect of putative promoter SNPs on expression of the asthma-associated orosomucoid-like 3 gene (ORMDL3). RESULTS Within 17q12-21, only the tag SNP rs8076131 was significantly associated with asthma (P = 8.53 × 10(-10); odds ratio, 0.6715), and AR status was independent of SNPs in this region. C-A alleles at rs8076131 resulted in significantly increased ORMDL3 expression in HEK293 cells in vitro relative to T-G alleles. Moreover, subjects with the risk genotype AA exhibited significantly higher total IgE levels and higher blood eosinophil counts than those with the lower-risk genotypes. CONCLUSION The 17q12-21 locus has a strong genetic association with allergic asthma but not with AR. The polymorphic effect of this locus is attributed to the linkage set tagged by rs8076131, which affects the expression of ORMDL3, protein phosphatase 1, regulatory inhibitor subunit 1B (PPP1R1B), zona pellucida binding protein 2 (ZPBP2), and gasdermin B (GSDMB) and is correlated with high IgE levels and eosinophil counts in subjects bearing the risk genotype.
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Affiliation(s)
- Anand Kumar Andiappan
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore; Department of Biological Sciences, National University of Singapore, Singapore
| | - Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Bernett Lee
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Bani Kaur Suri
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Josephine Lum
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Shihui Foo
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Geraldine Koh
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Jianjun Liu
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Francesca Zolezzi
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Michael Poidinger
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore
| | - De Yun Wang
- Department of Otolaryngology, National University of Singapore, National University Health System, Singapore.
| | - Olaf Rotzschke
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore.
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore.
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Jin P, Andiappan AK, Quek JM, Lee B, Au B, Sio YY, Irwanto A, Schurmann C, Grabe HJ, Suri BK, Matta SA, Westra HJ, Franke L, Esko T, Sun L, Zhang X, Liu H, Zhang F, Larbi A, Xu X, Poidinger M, Liu J, Chew FT, Rotzschke O, Shi L, Wang DY. A functional brain-derived neurotrophic factor (BDNF) gene variant increases the risk of moderate-to-severe allergic rhinitis. J Allergy Clin Immunol 2015; 135:1486-93.e8. [PMID: 25649076 DOI: 10.1016/j.jaci.2014.12.1870] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 11/19/2014] [Accepted: 12/03/2014] [Indexed: 01/22/2023]
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) is a secretory protein that has been implicated in the pathogenesis of allergic rhinitis (AR), atopic asthma, and eczema, but it is currently unknown whether BDNF polymorphisms influence susceptibility to moderate-to-severe AR. OBJECTIVE We sought to identify disease associations and the functional effect of BDNF genetic variants in patients with moderate-to-severe AR. METHODS Tagging single nucleotide polymorphisms (SNPs) spanning the BDNF gene were selected from the human HapMap Han Chinese from Beijing (CHB) data set, and associations with moderate-to-severe AR were assessed in 2 independent cohorts of Chinese patients (2216 from Shandong province and 1239 living in Singapore). The functional effects of the BDNF genetic variants were determined by using both in vitro and ex vivo assays. RESULTS The tagging SNP rs10767664 was significantly associated with the risk of moderate-to-severe AR in both Singapore Chinese (P = .0017; odds ratio, 1.324) and Shandong Chinese populations (P = .039; odds ratio, 1.180). The coding nonsynonymous SNP rs6265 was in perfect linkage with rs10767664 and conferred increased BDNF protein secretion by a human cell line in vitro. Subjects bearing the AA genotype of rs10767664 exhibited increased risk of moderate-to-severe AR and displayed increased BDNF protein and total IgE levels in plasma. Using a large-scale expression quantitative trait locus study, we demonstrated that BDNF SNPs are significantly associated with altered BDNF concentrations in peripheral blood. CONCLUSION A common genetic variant of the BDNF gene is associated with increased risk of moderate-to-severe AR, and the AA genotype is associated with increased BDNF mRNA levels in peripheral blood. Together, these data indicate that functional BDNF gene variants increase the risk of moderate-to-severe AR.
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Affiliation(s)
- Peng Jin
- Key Laboratory of Otolaryngology of the Ministry of Health, Department of Otolaryngology, Qilu Hospital, Shandong University, Jinan, China; Department of Otolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore
| | - Anand Kumar Andiappan
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore; Department of Biological Sciences, National University of Singapore, Singapore
| | - Jia Min Quek
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Bernett Lee
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Bijin Au
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Yang Yie Sio
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Astrid Irwanto
- the Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Claudia Schurmann
- Department of Functional Genomics, Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Hans Jörgen Grabe
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, HELIOS Hospital Stralsund, Greifswald, Germany
| | - Bani Kaur Suri
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Harm-Jan Westra
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Lude Franke
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Tonu Esko
- Estonian Genome Center, University of Tartu, Tartu, Estonia
| | - Liangdan Sun
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology, Anhui Medical University, Hefei, China; Key Lab of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China; Collaborative Innovation Center for Complex and Severe Skin Diseases, Anhui Medical University, Hefei, China
| | - Xuejun Zhang
- Institute of Dermatology and Department of Dermatology at No. 1 Hospital, Anhui Medical University, Hefei, China; State Key Laboratory Incubation Base of Dermatology, Ministry of National Science and Technology, Anhui Medical University, Hefei, China; Key Lab of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China; Collaborative Innovation Center for Complex and Severe Skin Diseases, Anhui Medical University, Hefei, China
| | - Hong Liu
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China; Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China; Shandong Provincial Key Lab for Dermatovenereology, Jinan, China; Shandong Provincial Medical Center for Dermatovenereology, Jinan, China
| | - Furen Zhang
- Shandong Provincial Hospital for Skin Diseases, Shandong University, Jinan, China; Shandong Provincial Institute of Dermatology and Venereology, Shandong Academy of Medical Sciences, Jinan, China; Shandong Provincial Key Lab for Dermatovenereology, Jinan, China; Shandong Provincial Medical Center for Dermatovenereology, Jinan, China
| | - Anis Larbi
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Xin Xu
- Qingdao Caretaker Otolaryngology, Head & Neck Surgery Hospital, Qingdao, China
| | - Michael Poidinger
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Jianjun Liu
- the Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, National University of Singapore, Singapore
| | - Olaf Rotzschke
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Li Shi
- Key Laboratory of Otolaryngology of the Ministry of Health, Department of Otolaryngology, Qilu Hospital, Shandong University, Jinan, China.
| | - De Yun Wang
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore.
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