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Yeung E, Biedrzycki RJ, Gómez Herrera LC, Issarapu P, Dou J, Marques IF, Mansuri SR, Page CM, Harbs J, Khodasevich D, Poisel E, Niu Z, Allard C, Casey E, Berstein FM, Mancano G, Elliott HR, Richmond R, He Y, Ronkainen J, Sebert S, Bell EM, Sharp G, Mumford SL, Schisterman EF, Chandak GR, Fall CHD, Sahariah SA, Silver MJ, Prentice AM, Bouchard L, Domellof M, West C, Holland N, Cardenas A, Eskenazi B, Zillich L, Witt SH, Send T, Breton C, Bakulski KM, Fallin MD, Schmidt RJ, Stein DJ, Zar HJ, Jaddoe VWV, Wright J, Grazuleviciene R, Gutzkow KB, Sunyer J, Huels A, Vrijheid M, Harlid S, London S, Hivert M, Felix J, Bustamante M, Guan W. Maternal age is related to offspring DNA methylation: A meta-analysis of results from the PACE consortium. Aging Cell 2024; 23:e14194. [PMID: 38808605 PMCID: PMC11320347 DOI: 10.1111/acel.14194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 04/16/2024] [Accepted: 04/19/2024] [Indexed: 05/30/2024] Open
Abstract
Worldwide trends to delay childbearing have increased parental ages at birth. Older parental age may harm offspring health, but mechanisms remain unclear. Alterations in offspring DNA methylation (DNAm) patterns could play a role as aging has been associated with methylation changes in gametes of older individuals. We meta-analyzed epigenome-wide associations of parental age with offspring blood DNAm of over 9500 newborns and 2000 children (5-10 years old) from the Pregnancy and Childhood Epigenetics consortium. In newborns, we identified 33 CpG sites in 13 loci with DNAm associated with maternal age (PFDR < 0.05). Eight of these CpGs were located near/in the MTNR1B gene, coding for a melatonin receptor. Regional analysis identified them together as a differentially methylated region consisting of 9 CpGs in/near MTNR1B, at which higher DNAm was associated with greater maternal age (PFDR = 6.92 × 10-8) in newborns. In childhood blood samples, these differences in blood DNAm of MTNR1B CpGs were nominally significant (p < 0.05) and retained the same positive direction, suggesting persistence of associations. Maternal age was also positively associated with higher DNA methylation at three CpGs in RTEL1-TNFRSF6B at birth (PFDR < 0.05) and nominally in childhood (p < 0.0001). Of the remaining 10 CpGs also persistent in childhood, methylation at cg26709300 in YPEL3/BOLA2B in external data was associated with expression of ITGAL, an immune regulator. While further study is needed to establish causality, particularly due to the small effect sizes observed, our results potentially support offspring DNAm as a mechanism underlying associations of maternal age with child health.
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Affiliation(s)
- Edwina Yeung
- Epidemiology Branch, Division of Population Health Research, Division of Intramural ResearchEunice Kennedy Shriver National Institute of Child Health and Human DevelopmentBethesdaMarylandUSA
| | - Richard J. Biedrzycki
- Division of Intramural ResearchGlotech Inc., Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of HealthBethesdaMarylandUSA
| | - Laura C. Gómez Herrera
- ISGlobal, Institute for Global HealthBarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
- CIBER Epidemiología y Salud Pública (CIBERESP)MadridSpain
| | - Prachand Issarapu
- MRC Unit the Gambia at the London School of Hygiene and Tropical Medicine (LSHTM)BanjulThe Gambia
| | - John Dou
- Department of Epidemiology, School of Public HealthUniversity of MichiganAnn ArborMichiganUSA
| | - Irene Fontes Marques
- Generation R Study Group, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
- Department of Pediatrics, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Sohail Rafik Mansuri
- Genomic Research on Complex Diseases (GRC‐Group)CSIR‐Centre for Cellular and Molecular BiologyHyderabadTelanganaIndia
| | | | - Justin Harbs
- Department of Diagnostics and Intervention, OncologyUmeå UniversityUmeåSweden
| | - Dennis Khodasevich
- Environmental Health Sciences, Berkeley Public HealthCERCH, University of CaliforniaBerkeleyCaliforniaUSA
| | - Eric Poisel
- Department of Genetic Epidemiology in PsychiatryCentral Institute of Mental Health, Medical Faculty Mannheim, University of HeidelbergMannheimGermany
| | - Zhongzheng Niu
- Department of Population and Public Health Science, Keck School of MedicineUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Catherine Allard
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke (CHUS)SherbrookeQuebecCanada
| | - Emma Casey
- Department of Epidemiology, Rollins School of Public HealthEmory UniversityAtlantaGeorgiaUSA
| | - Fernanda Morales Berstein
- Medical Research Council Integrative Epidemiology UnitUniversity of BristolBristolUK
- Bristol Medical School Population Health SciencesUniversity of BristolBristolUK
| | - Giulia Mancano
- Medical Research Council Integrative Epidemiology UnitUniversity of BristolBristolUK
- Bristol Medical School Population Health SciencesUniversity of BristolBristolUK
| | - Hannah R. Elliott
- Medical Research Council Integrative Epidemiology UnitUniversity of BristolBristolUK
- Bristol Medical School Population Health SciencesUniversity of BristolBristolUK
| | - Rebecca Richmond
- Medical Research Council Integrative Epidemiology UnitUniversity of BristolBristolUK
- Bristol Medical School Population Health SciencesUniversity of BristolBristolUK
| | - Yiyan He
- Research Unit of Population HealthUniversity of OuluOuluFinland
| | | | - Sylvain Sebert
- Research Unit of Population HealthUniversity of OuluOuluFinland
| | - Erin M. Bell
- Department of Environmental Health Sciences and Epidemiology and BiostatisticsUniversity at Albany School of Public HealthAlbanyNew YorkUSA
| | - Gemma Sharp
- Department of PsychologyUniversity of ExeterExeterUK
| | - Sunni L. Mumford
- Department of Biostatistics, Epidemiology and Informatics and Department of Obstetrics and Gynecology, Perelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - Enrique F. Schisterman
- Department of Biostatistics, Epidemiology and Informatics and Department of Obstetrics and Gynecology, Perelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - Giriraj R. Chandak
- Genomic Research on Complex Diseases (GRC‐Group)CSIR‐Centre for Cellular and Molecular BiologyHyderabadTelanganaIndia
| | | | | | - Matt J. Silver
- MRC Unit the Gambia at the London School of Hygiene and Tropical Medicine (LSHTM)BanjulThe Gambia
| | - Andrew M. Prentice
- MRC Unit the Gambia at the London School of Hygiene and Tropical Medicine (LSHTM)BanjulThe Gambia
| | - Luigi Bouchard
- Department of Biochemistry and Functional GenomicsCentre intégré Universitaire de santé et de Services Sociaux (CIUSSS) du Saguenay‐Lac‐St‐Jean, Université de SherbrookeSherbrookeQuebecCanada
- Department of Laboratory MedicineCIUSSS du Saguenay‐Lac‐Saint‐Jean – Hôpital de ChicoutimiChicoutimiQuebecCanada
| | - Magnus Domellof
- Department of Clinical Sciences, PediatricsUmeå UniversityUmeåSweden
| | - Christina West
- Department of Clinical Sciences, PediatricsUmeå UniversityUmeåSweden
| | - Nina Holland
- Environmental Health Sciences, Berkeley Public HealthCERCH, University of CaliforniaBerkeleyCaliforniaUSA
| | - Andres Cardenas
- Department of Epidemiology and Population HealthStanford UniversityStanfordCaliforniaUSA
| | - Brenda Eskenazi
- Environmental Health Sciences, Berkeley Public HealthCERCH, University of CaliforniaBerkeleyCaliforniaUSA
| | - Lea Zillich
- Department of Genetic Epidemiology in PsychiatryCentral Institute of Mental Health, Medical Faculty Mannheim, University of HeidelbergMannheimGermany
| | - Stephanie H. Witt
- Department of Genetic Epidemiology in PsychiatryCentral Institute of Mental Health, Medical Faculty Mannheim, University of HeidelbergMannheimGermany
| | - Tabea Send
- Department of Psychiatry and PsychotherapyCentral Institute of Mental Health, Medical Faculty Mannheim, University of HeidelbergMannheimGermany
| | - Carrie Breton
- Department of Population and Public Health Science, Keck School of MedicineUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Kelly M. Bakulski
- Department of Epidemiology, School of Public HealthUniversity of MichiganAnn ArborMichiganUSA
| | - M. Daniele Fallin
- Dean's Office, Rollins School of Public HealthEmory UniversityAtlantaGeorgiaUSA
| | - Rebecca J. Schmidt
- Department of Public Health Sciences and the M.I.N.D. Institute, School of MedicineUniversity of CaliforniaDavisCaliforniaUSA
| | - Dan J. Stein
- Neuroscience Institute, University of Cape TownCape TownSouth Africa
- Department of Psychiatry and Mental HealthUniversity of Cape TownCape TownSouth Africa
- South African Medical Research Council (SAMRC) Unit on Risk and Resilience in Mental DisordersUniversity of Cape TownCape TownSouth Africa
| | - Heather J. Zar
- South African Medical Research Council (SAMRC) Unit on Risk and Resilience in Mental DisordersUniversity of Cape TownCape TownSouth Africa
- Department of Paediatrics and Child Health, Red Cross War Memorial Children's HospitalUniversity of Cape TownCape TownSouth Africa
| | - Vincent W. V. Jaddoe
- Generation R Study Group, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
- Department of Pediatrics, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - John Wright
- Bradford Institute for Health Research, Temple Bank House, Bradford Royal InfirmaryBradfordUK
| | | | | | - Jordi Sunyer
- ISGlobal, Institute for Global HealthBarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
- CIBER Epidemiología y Salud Pública (CIBERESP)MadridSpain
- IMIM‐Parc Salut MarBarcelonaSpain
| | - Anke Huels
- Department of Epidemiology, Rollins School of Public HealthEmory UniversityAtlantaGeorgiaUSA
- Gangarosa Department of Environmental Health, Rollins School of Public HealthEmory UniversityAtlantaGeorgiaUSA
| | - Martine Vrijheid
- ISGlobal, Institute for Global HealthBarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
- CIBER Epidemiología y Salud Pública (CIBERESP)MadridSpain
| | - Sophia Harlid
- Department of Diagnostics and Intervention, OncologyUmeå UniversityUmeåSweden
| | - Stephanie London
- Epidemiology BranchNational Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle ParkDurhamNorth CarolinaUSA
| | - Marie‐France Hivert
- Division of Chronic Disease Research across the Lifecourse (CoRAL); Department of Population Medicine, Harvard Medical SchoolHarvard Pilgrim Health Care InstituteBostonMassachusettsUSA
- Diabetes Unit, Massachusetts General HospitalBostonMassachusettsUSA
| | - Janine Felix
- Generation R Study Group, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
- Department of Pediatrics, Erasmus MCUniversity Medical Center RotterdamRotterdamThe Netherlands
| | - Mariona Bustamante
- ISGlobal, Institute for Global HealthBarcelonaSpain
- Universitat Pompeu Fabra (UPF)BarcelonaSpain
- CIBER Epidemiología y Salud Pública (CIBERESP)MadridSpain
| | - Weihua Guan
- Division of Biostatistics, School of Public HealthUniversity of MinnesotaMinneapolisMinnesotaUSA
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Zheng W, Wai CYY, Sit JKC, Cheng NS, Leung CWM, Leung TF. Routinely Used and Emerging Diagnostic and Immunotherapeutic Approaches for Wheat Allergy. Biomedicines 2024; 12:1549. [PMID: 39062122 PMCID: PMC11275021 DOI: 10.3390/biomedicines12071549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 07/06/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Wheat, a component of the staple diet globally, is a common food allergen in children. The symptoms of wheat allergy (WA) range from skin rash to shortness of breath, significantly impairing quality of life. Following initial clinical suspicion, individuals may undergo routinely used allergy tests such as a wheat allergen-specific skin prick test (SPT), a blood test for specific immunoglobulin E (sIgE) levels, or oral food challenge. Conventional management of WA lies in wheat avoidance, yet accidental consumption may be inevitable owing to the ubiquity of wheat in various food products. This article aims to provide an overview of the immunologic pathway of WA, followed by its emerging diagnostic methods, namely alcohol-soluble SPT extracts, component-resolved diagnosis, and the basophil activation test (BAT). The mechanisms underlying wheat allergen-specific oral immunotherapy (OIT) as well as a summary of the efficacy, tolerability, and safety of related clinical trials will then be discussed.
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Affiliation(s)
- Wanqi Zheng
- Department of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong; (W.Z.); (C.Y.Y.W.); (J.K.C.S.); (N.S.C.)
| | - Christine Yee Yan Wai
- Department of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong; (W.Z.); (C.Y.Y.W.); (J.K.C.S.); (N.S.C.)
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Jason Ka Chun Sit
- Department of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong; (W.Z.); (C.Y.Y.W.); (J.K.C.S.); (N.S.C.)
| | - Nam Sze Cheng
- Department of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong; (W.Z.); (C.Y.Y.W.); (J.K.C.S.); (N.S.C.)
| | | | - Ting Fan Leung
- Department of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong; (W.Z.); (C.Y.Y.W.); (J.K.C.S.); (N.S.C.)
- Hong Kong Hub of Paediatric Excellence, The Chinese University of Hong Kong, Shatin, Hong Kong
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Serio C, Leung ASY, Eigenmann P, Lezmi G. Editorial comment on "Epigenomic and epigenetic investigations of food allergy". Pediatr Allergy Immunol 2024; 35:e14117. [PMID: 38556795 DOI: 10.1111/pai.14117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 04/02/2024]
Affiliation(s)
- Cristina Serio
- Scuola di Specializzazione in Pediatria, University of Bari "Aldo Moro", Bari, Italy
| | - Agnes S Y Leung
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Sha Tin, China
| | - Philippe Eigenmann
- Pediatric Allergy Unit, Department of Pediatrics, Gynecology and Obstetrics, University Hospitals of Geneva, Geneva, Switzerland
| | - Guillaume Lezmi
- Department of Pediatric Pulmonology and Allergy, Assistance Publique Hôpitaux de Paris, Hôpital Necker Enfants Malades and University of Paris Cité, Paris, France
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Ashley SE, Bosco A, Tang MLK. Transcriptomic changes associated with oral immunotherapy for food allergy. Pediatr Allergy Immunol 2024; 35:e14106. [PMID: 38520061 DOI: 10.1111/pai.14106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 02/14/2024] [Accepted: 02/19/2024] [Indexed: 03/25/2024]
Abstract
This review summarizes recent advances in characterizing the transcriptional pathways associated with outcomes following Oral Immunotherapy. Recent technological advances including single-cell sequencing are transforming the ways in which the transcriptional landscape is understood. The application of these technologies is still in its infancy in food allergy but here we summarize current understanding of gene expression changes following oral immunotherapy for food allergy and specific signatures underpinning the different clinical outcomes of desensitization and remission (sustained unresponsiveness). T helper 2A cells have been identified as a cell type which correlates with disease activity and is modified by treatment. Molecular features at study entry may differentiate individuals who achieve more positive outcomes during OIT. Recent findings point to T cell anergy and Type 1 interferon pathways as potential mechanisms supporting redirection of the allergen-specific immune response away from allergy towards remission. Despite these developments in our understanding of immune mechanisms following OIT, there are still significant gaps. Additional studies examining immune signatures associated with long term and well-defined clinical outcomes are required to gain a more complete understanding of the pathways leading to remission of allergy, in order to optimize treatments and gain improved outcomes for patients.
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Affiliation(s)
- Sarah E Ashley
- Allergy Immunology, Murdoch Children's Research Institute, Melbourne, Victoria, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Allergy and Immunology, Royal Children's Hospital, Melbourne, Victoria, Australia
| | - Anthony Bosco
- Asthma and Airway Disease Research Center, University of Arizona, Tucson, Arizona, USA
- Department of Immunobiology, The University of Arizona College of Medicine, Tucson, Arizona, USA
| | - Mimi L K Tang
- Allergy Immunology, Murdoch Children's Research Institute, Melbourne, Victoria, Australia
- Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
- Department of Allergy and Immunology, Royal Children's Hospital, Melbourne, Victoria, Australia
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Chun Y, Lee JH, Bunyavanich S. Epigenomic and epigenetic investigations of food allergy. Pediatr Allergy Immunol 2024; 35:e14065. [PMID: 38284919 PMCID: PMC10825314 DOI: 10.1111/pai.14065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 01/30/2024]
Abstract
As a potential link between genetic predisposition, environmental exposures, and food allergy outcomes, epigenetics has been a molecular variable of interest in ongoing efforts to understand food allergy mechanisms and outcomes. Here we review population-based investigations of epigenetic loci associated with food allergy, focusing on established clinical food allergy. We first provide an overview of epigenetic mechanisms that have been studied in cohorts with food allergy, predominantly DNA methylation but also microRNA. We then discuss investigations that have implemented epigenome-wide approaches aimed at genome-wide profiling and discovery. Such epigenome-wide studies have collectively identified differentially methylated and differentially regulated loci associated with T cell development, antigen presentation, reaction severity, and causal mediation in food allergy. We then discuss candidate-gene investigations that have honed in on Th1, Th2, T regulatory, and innate genes of a priori interest in food allergy. These studies have highlighted methylation changes in specific candidate genes as associated with T regulatory cell activity as well as differential methylation of Type 1 and Type 2 cytokine genes associated with various food allergies. Intriguingly, epigenetic loci associated with food allergy have also been explored as potential biomarkers for the clinical management of food allergy. We conclude by highlighting several priority directions for advancing population-based epigenomic and epigenetic understandings of food allergy.
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Affiliation(s)
- Yoojin Chun
- Department of Genetics & Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jo Hsuan Lee
- Department of Genetics & Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Supinda Bunyavanich
- Department of Genetics & Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Silva HDS, Teixeira HMP, Gomes LGDS, Cruz ÁA, Alcantara-Neves NM, Barreto M, Figueiredo CA, Costa RDS. PDE4D gene variants and haplotypes are associated with asthma and atopy in Brazilian children. Immunobiology 2023; 228:152724. [PMID: 37549468 DOI: 10.1016/j.imbio.2023.152724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 07/20/2023] [Accepted: 07/30/2023] [Indexed: 08/09/2023]
Abstract
PDE4D (Phosphodiesterase 4D) gene encodes a hydrolase of cyclic AMP. PDE4D genetic variants have been associated with asthma susceptibility. Therefore, this study aimed to investigate the association between PDE4D variants (and haplotypes) with asthma and atopy in a Brazilian population. The study comprised 1,246 unrelated participants from the SCAALA (Social Changes Asthma and Allergy in Latin America) program. Genotyping was performed using the Illumina 2.5 Human Omni bead chip. Multivariate logistic regression was used to investigate the association between PDE4D variants and asthma/atopy phenotypes in PLINK 1.09 software. Twenty-four SNVs in PDE4D were associated with atopy or asthma. The rs6898082 (A) variant increased asthma susceptibility (OR 2.76; CI 99% 1.26-6.03) and was also related to a greater PDE4D expression in the GTEx database. Also, the variant rs6870632 was further associated with asthma in meta-analysis with a replication cohort. In addition, the variants rs75699812 (C), rs8007656 (G), and rs958851 (T) were positively associated with atopy. Moreover, these variants formed an atopy risk haplotype (OR 1.82; CI 99% 1.15-2.88). Also, these variants were related to lower levels of IL-10. Functional in silico assessment showed that some PDE4D SNVs may have an impact on gene regulation and expression. Variants in the PDE4D are positively associated with asthma and allergy markers. It is possible that these variants lead to alteration in PDE4D expression and therefore impact immunity and pulmonary function.
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Affiliation(s)
| | | | | | | | | | - Maurício Barreto
- Centro de Integração de Dados e Conhecimento para Saúde (CIDACS), Fiocruz, Salvador, Bahia, Brazil; Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Brazil
| | | | - Ryan Dos Santos Costa
- Instituto de Ciências da Saúde, Universidade Federal da Bahia (UFBA), Salvador, Brazil.
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