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Robinson JL, Gatford KL, Clifton VL, Morrison JL, Stark MJ. The impact of maternal asthma on the fetal lung: Outcomes, mechanisms and interventions. Paediatr Respir Rev 2024; 51:38-45. [PMID: 38195368 DOI: 10.1016/j.prrv.2023.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 01/11/2024]
Abstract
Maternal asthma affects up to 17% of pregnancies and is associated with adverse infant, childhood, and adult respiratory outcomes, including increased risks of neonatal respiratory distress syndrome, childhood wheeze and asthma. In addition to genetics, these poor outcomes are likely due to the mediating influence of maternal asthma on the in-utero environment, altering fetal lung and immune development and predisposing the offspring to later lung disease. Maternal asthma may impair glucocorticoid signalling in the fetus, a process critical for lung maturation, and increase fetal exposure to proinflammatory cytokines. Therefore, interventions to control maternal asthma, increase glucocorticoid signalling in the fetal lung, or Vitamin A, C, and D supplementation to improve alveologenesis and surfactant production may be beneficial for later lung function. This review highlights potential mechanisms underlying maternal asthma and offspring respiratory morbidities and describes how pregnancy interventions can promote optimal fetal lung development in babies of asthmatic mothers.
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Affiliation(s)
- Joshua L Robinson
- Robinson Research Institute, University of Adelaide, Adelaide, Australia; Adelaide Medical School, University of Adelaide, Adelaide, Australia; Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, Australia.
| | - Kathryn L Gatford
- Robinson Research Institute, University of Adelaide, Adelaide, Australia; School of Biomedicine, University of Adelaide, Adelaide, Australia
| | - Vicki L Clifton
- Mater Research Institute, University of Queensland, Brisbane, Australia
| | - Janna L Morrison
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Michael J Stark
- Robinson Research Institute, University of Adelaide, Adelaide, Australia; Adelaide Medical School, University of Adelaide, Adelaide, Australia; Department of Neonatal Medicine, Women's & Children's Hospital, Adelaide, Australia.
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2
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Robinson JL, Gatford KL, Bailey DN, Roff AJ, Clifton VL, Morrison JL, Stark MJ. Preclinical models of maternal asthma and progeny outcomes: a scoping review. Eur Respir Rev 2024; 33:230174. [PMID: 38417970 PMCID: PMC10900068 DOI: 10.1183/16000617.0174-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 12/09/2023] [Indexed: 03/01/2024] Open
Abstract
There is an increased risk of adverse perinatal outcomes in the ∼17% of women with asthma during pregnancy. The mechanisms linking maternal asthma and adverse outcomes are largely unknown, but reflect joint effects of genetics and prenatal exposure to maternal asthma. Animal models are essential to understand the underlying mechanisms independent of genetics and comorbidities, and enable safe testing of interventions. This scoping review aimed to explore the methodology, phenotype, characteristics, outcomes and quality of published studies using preclinical maternal asthma models. MEDLINE (PubMed), Embase (Elsevier) and Web of Science were systematically searched using previously validated search strings for maternal asthma and for animal models. Two reviewers independently screened titles and abstracts, full texts, and then extracted and assessed the quality of each study using the Animal Research: Reporting of In Vivo Experiments (ARRIVE) 2.0 guidelines. Out of 3618 studies identified, 39 were eligible for extraction. Most studies were in rodents (86%) and all were models of allergic asthma. Maternal and progeny outcomes included airway hyperresponsiveness, airway resistance, inflammation, lung immune cells, lung structure and serum immunoglobulins and cytokines. Experimental design (100%), procedural details (97%) and rationale (100%) were most often reported. Conversely, data exclusion (21%), blinding (18%) and adverse events (8%) were reported in a minority of studies. Species differences in physiology and timing of development, the use of allergens not relevant to humans and a lack of comparable outcome measures may impede clinical translation. Future studies exploring models of maternal asthma should adhere to the minimum core outcomes set presented in this review.
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Affiliation(s)
- Joshua L Robinson
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, Australia
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Kathryn L Gatford
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
- School of Biomedicine, University of Adelaide, Adelaide, Australia
| | - Danielle N Bailey
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
| | - Andrea J Roff
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
- School of Biomedicine, University of Adelaide, Adelaide, Australia
| | - Vicki L Clifton
- Mater Research Institute, University of Queensland, Brisbane, Australia
| | - Janna L Morrison
- Early Origins of Adult Health Research Group, Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Michael J Stark
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, Australia
- Department of Neonatal Medicine, Women's & Children's Hospital, Adelaide, Australia
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3
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Lajiness JD, Cook-Mills JM. Catching Our Breath: Updates on the Role of Dendritic Cell Subsets in Asthma. Adv Biol (Weinh) 2023; 7:e2200296. [PMID: 36755197 PMCID: PMC10293089 DOI: 10.1002/adbi.202200296] [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: 11/01/2022] [Revised: 01/04/2023] [Indexed: 02/10/2023]
Abstract
Dendritic cells (DCs), as potent antigen presenting cells, are known to play a central role in the pathophysiology of asthma. The understanding of DC biology has evolved over the years to include multiple subsets of DCs with distinct functions in the initiation and maintenance of asthma. Furthermore, asthma is increasingly recognized as a heterogeneous disease with potentially diverse underlying mechanisms. The goal of this review is to summarize the role of DCs and the various subsets therein in the pathophysiology of asthma and highlight some of the crucial animal models shaping the field today. Potential future avenues of investigation to address existing gaps in knowledge are discussed.
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Affiliation(s)
- Jacquelyn D Lajiness
- Department of Pediatrics, Division of Neonatology, Indiana University School of Medicine, 1030 West Michigan Street, Suite C 4600, Indianapolis, IN, 46202-5201, USA
| | - Joan M Cook-Mills
- Department of Pediatrics, Department of Microbiology and Immunology, Pediatric Pulmonary, Asthma, and Allergy Basic Research Program, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, 1044 W. Walnut Street, R4-202A, Indianapolis, IN, 46202, USA
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Ramar M, Yano N, Fedulov AV. Intra-Airway Treatment with Synthetic Lipoxin A4 and Resolvin E2 Mitigates Neonatal Asthma Triggered by Maternal Exposure to Environmental Particles. Int J Mol Sci 2023; 24:ijms24076145. [PMID: 37047118 PMCID: PMC10093944 DOI: 10.3390/ijms24076145] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/19/2023] [Accepted: 03/22/2023] [Indexed: 04/14/2023] Open
Abstract
Particulate matter in the air exacerbates airway inflammation (AI) in asthma; moreover, prenatal exposure to concentrated urban air particles (CAPs) and diesel exhaust particles (DEPs) predisposes the offspring to asthma and worsens the resolution of AI in response to allergens. We previously tested the hypothesis that such exposure impairs the pathways of specialized proresolving mediators that are critical for resolution and found declined Lipoxin A4 (LxA4) and Resolvin E2 (RvE2) levels in the "at-risk" pups of exposed mothers. Here, we hypothesized that supplementation with synthetic LxA4 or RvE2 via the airway can ameliorate AI after allergen exposure, which has not been tested in models with environmental toxicant triggers. BALB/c newborns with an asthma predisposition resultant from prenatal exposure to CAPs and DEPs were treated once daily for 3 days with 750 ng/mouse of LxA4 or 300 ng/mouse of RvE2 through intranasal instillation, and they were tested with the intentionally low-dose ovalbumin protocol that elicits asthma in the offspring of particle-exposed mothers but not control mothers, mimicking the enigmatic maternal transmission of asthma seen in humans. LxA4 and RvE2 ameliorated the asthma phenotype and improved AI resolution, which was seen as declining airway eosinophilia, lung tissue infiltration, and proallergic cytokine levels.
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Affiliation(s)
- Mohankumar Ramar
- Division of Surgical Research, Department of Surgery, Rhode Island Hospital, Alpert Medical School of Brown University, 593 Eddy Street, Providence, RI 02903, USA
| | - Naohiro Yano
- Division of Surgical Research, Department of Surgery, Rhode Island Hospital, Alpert Medical School of Brown University, 593 Eddy Street, Providence, RI 02903, USA
| | - Alexey V Fedulov
- Division of Surgical Research, Department of Surgery, Rhode Island Hospital, Alpert Medical School of Brown University, 593 Eddy Street, Providence, RI 02903, USA
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Bloodworth JC, Hoji A, Wolff G, Mandal RK, Schmidt NW, Deshane JS, Morrow CD, Kloepfer KM, Cook-Mills JM. Dysbiotic lung microbial communities of neonates from allergic mothers confer neonate responsiveness to suboptimal allergen. FRONTIERS IN ALLERGY 2023; 4:1135412. [PMID: 36970065 PMCID: PMC10036811 DOI: 10.3389/falgy.2023.1135412] [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: 12/31/2022] [Accepted: 02/17/2023] [Indexed: 03/12/2023] Open
Abstract
In humans and animals, offspring of allergic mothers have increased responsiveness to allergens. This is blocked in mice by maternal supplementation with α-tocopherol (αT). Also, adults and children with allergic asthma have airway microbiome dysbiosis with increased Proteobacteria and may have decreased Bacteroidota. It is not known whether αT alters neonate development of lung microbiome dysbiosis or whether neonate lung dysbiosis modifies development of allergy. To address this, the bronchoalveolar lavage was analyzed by 16S rRNA gene analysis (bacterial microbiome) from pups of allergic and non-allergic mothers with a basal diet or αT-supplemented diet. Before and after allergen challenge, pups of allergic mothers had dysbiosis in lung microbial composition with increased Proteobacteria and decreased Bacteroidota and this was blocked by αT supplementation. We determined whether intratracheal transfer of pup lung dysbiotic microbial communities modifies the development of allergy in recipient pups early in life. Interestingly, transfer of dysbiotic lung microbial communities from neonates of allergic mothers to neonates of non-allergic mothers was sufficient to confer responsiveness to allergen in the recipient pups. In contrast, neonates of allergic mothers were not protected from development of allergy by transfer of donor lung microbial communities from either neonates of non-allergic mothers or neonates of αT-supplemented allergic mothers. These data suggest that the dysbiotic lung microbiota is dominant and sufficient for enhanced neonate responsiveness to allergen. Importantly, infants within the INHANCE cohort with an anti-inflammatory profile of tocopherol isoforms had an altered microbiome composition compared to infants with a pro-inflammatory profile of tocopherol isoforms. These data may inform design of future studies for approaches in the prevention or intervention in asthma and allergic disease early in life.
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Affiliation(s)
- Jeffery C. Bloodworth
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Aki Hoji
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Garen Wolff
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States
- Division of Pulmonary, Allergy and Sleep Medicine, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Rabindra K. Mandal
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Nathan W. Schmidt
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Jessy S. Deshane
- Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Casey D. Morrow
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Kirsten M. Kloepfer
- Division of Pulmonary, Allergy and Sleep Medicine, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Joan M. Cook-Mills
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States
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Al-Shuweli S, Landt E, Ellervik C, Poulsen HE, Ramar M, Dahl M, Fedulov AV. Risk of asthma in offspring of asthmatic fathers versus mothers: A population-based study of 21,000 individuals in Denmark. Respir Med 2023; 207:107116. [PMID: 36642344 DOI: 10.1016/j.rmed.2023.107116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/15/2023]
Abstract
Parental asthma or allergy have been linked to higher risk of asthma in a child; this occurs to a variable extent in different study populations. Moreover, it is debated whether maternal more so than paternal asthma history is a stronger predisposing factor: while in some countries/populations the maternal effect was clearly seen over paternal, in others the parental effects were equivalent, and in a few studies paternal effect dominated. Here we aimed to determine parental asthma and allergy effect in the Danish GEneral SUburban population Study (GESUS). This cross-sectional study has involved 21,362 adults aged 20+ years in the suburbs of Copenhagen. We used a combination of questionnaire approach, history of prescribed asthma medications and pulmonary function testing to determine odds ratios for maternal and paternal (and combined) asthma and allergy linked to asthma in the test subjects. We found that the input of maternal vs. paternal asthma effect was approximately equal (age and sex-adjusted OR 2.46, 95% CI: 2.15-2.81 for asthmatic mothers vs. 2.97, 2.58-3.42 for asthmatic fathers), except for the "ever asthma" age and sex-adjusted odds ratios where paternal allergy seems to have conferred a marginally greater effect (age and sex-adj. OR 1.96 for maternal allergy vs. 2.44 for paternal allergy, p = 0.03). Stratifying for gestational tobacco smoking did not affect the maternal results. We conclude that in the GESUS study parental asthma or allergy were strongly linked to higher asthma risk in offspring, without a prominent maternal or paternal effect.
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Affiliation(s)
- Suzan Al-Shuweli
- Department of Clinical Biochemistry, Zealand University Hospital, Køge, Denmark
| | - Eskild Landt
- Department of Clinical Biochemistry, Zealand University Hospital, Køge, Denmark
| | - Christina Ellervik
- Department of Laboratory Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA; Department of Data Support, Region Zealand, Sorø, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Henrik Enghusen Poulsen
- Department of Endocrinology I, University Hospital Copenhagen Bispebjerg Frederiksberg Hospital, and Department of Cardiology, Copenhagen University Hospital Copenhagen at Hillerød, Denmark
| | - Mohankumar Ramar
- Department of Surgery, Warren Alpert Medical School, Brown University, RI, USA
| | - Morten Dahl
- Department of Clinical Biochemistry, Zealand University Hospital, Køge, Denmark; Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Alexey V Fedulov
- Department of Surgery, Warren Alpert Medical School, Brown University, RI, USA.
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Lajiness JD, Amarsaikhan N, Tat K, Tsoggerel A, Cook-Mills JM. β-Glucosylceramides and Tocopherols Regulate Development and Function of Dendritic Cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:1837-1850. [PMID: 36426950 PMCID: PMC9643659 DOI: 10.4049/jimmunol.2101188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 09/07/2022] [Indexed: 12/30/2022]
Abstract
In humans and mice, offspring of allergic mothers are predisposed to development of allergy. In mice, allergic mothers have elevated β-glucosylceramides (βGlcCers) that are transported to the fetus via the placenta and to offspring via milk. The elevated βGlcCers increase the number of fetal liver CD11c+CD11b+ dendritic cells (DCs) and offspring allergen-induced lung eosinophilia. These effects are modifiable by maternal dietary supplementation with the plant-derived lipids α-tocopherol and γ-tocopherol. It is not known whether βGlcCers and tocopherols directly regulate development of DCs. In this study, we demonstrated that βGlcCers increased development of GM-CSF-stimulated mouse bone marrow-derived DCs (BMDCs) in vitro without altering expression of costimulatory molecules. This increase in BMDC numbers was blocked by α-tocopherol and potentiated by γ-tocopherol. Furthermore, βGlcCers increased protein kinase Cα (PKCα) and PKCδ activation in BMDCs that was blocked by α-tocopherol. In contrast, γ-tocopherol increased BMDC PKCα and PKCδ activation and enhanced the βGlcCer-induced increase in PKCδ activation in a DC subset. Ag processing per DC was minimally enhanced in βGlcCer-treated BMDCs and not altered ex vivo in lung DCs from pups of allergic mothers. Pups of allergic mothers had an increased proportion of CD11b+CD11c+ subsets of DCs, contributing to enhanced stimulation of T cell proliferation ex vivo. Thus, βGlcCer, which is both necessary and sufficient for development of allergic predisposition in offspring of allergic mothers, directly increased development and PKC activation in BMDCs. Furthermore, this was modifiable by dietary tocopherols. This may inform design of future studies for the prevention or intervention in asthma and allergic disease.
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Affiliation(s)
- Jacquelyn D Lajiness
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN; and
| | - Nansalmaa Amarsaikhan
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN; and
| | - Kiet Tat
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN; and
| | - Angar Tsoggerel
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN; and
| | - Joan M Cook-Mills
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN; and
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN
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8
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Wheatley LM, Holloway JW, Svanes C, Sears MR, Breton C, Fedulov AV, Nilsson E, Vercelli D, Zhang H, Togias A, Arshad SH. The role of epigenetics in multi-generational transmission of asthma: An NIAID workshop report-based narrative review. Clin Exp Allergy 2022; 52:1264-1275. [PMID: 36073598 PMCID: PMC9613603 DOI: 10.1111/cea.14223] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 01/26/2023]
Abstract
There is mounting evidence that environmental exposures can result in effects on health that can be transmitted across generations, without the need for a direct exposure to the original factor, for example, the effect of grandparental smoking on grandchildren. Hence, an individual's health should be investigated with the knowledge of cross-generational influences. Epigenetic factors are molecular factors or processes that regulate genome activity and may impact cross-generational effects. Epigenetic transgenerational inheritance has been demonstrated in plants and animals, but the presence and extent of this process in humans are currently being investigated. Experimental data in animals support transmission of asthma risk across generations from a single exposure to the deleterious factor and suggest that the nature of this transmission is in part due to changes in DNA methylation, the most studied epigenetic process. The association of father's prepuberty exposure with offspring risk of asthma and lung function deficit may also be mediated by epigenetic processes. Multi-generational birth cohorts are ideal to investigate the presence and impact of transfer of disease susceptibility across generations and underlying mechanisms. However, multi-generational studies require recruitment and assessment of participants over several decades. Investigation of adult multi-generation cohorts is less resource intensive but run the risk of recall bias. Statistical analysis is challenging given varying degrees of longitudinal and hierarchical data but path analyses, structural equation modelling and multilevel modelling can be employed, and directed networks addressing longitudinal effects deserve exploration as an effort to study causal pathways.
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Affiliation(s)
- Lisa M. Wheatley
- National Institute of Allergy and Infectious DiseaseNational Institutes of HealthBethesdaMarylandUSA
| | - John W. Holloway
- Faculty of Medicine, Human Development and HealthUniversity of SouthamptonSouthamptonUK
| | - Cecilie Svanes
- Department of Global Public Health and Primary CareUniversity of BergenBergenNorway
| | | | - Carrie Breton
- University of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Alexey V. Fedulov
- Warren Alpert Medical School of Brown University, Rhode Island HospitalProvidenceRhode IslandUSA
| | - Eric Nilsson
- Washington State University PullmanPullmanWashingtonUSA
| | | | - Hongmei Zhang
- Division of Epidemiology, Biostatistics and Environmental Health, School of Public HealthUniversity of MemphisMemphisTennesseeUSA
| | - Alkis Togias
- National Institute of Allergy and Infectious DiseaseNational Institutes of HealthBethesdaMarylandUSA
| | - Syed Hasan Arshad
- Clinical and Experimental Sciences, Faculty of MedicineUniversity of SouthamptonSouthamptonUK
- The David Hide Asthma and Allergy CentreSt Mary's HospitalNewportUK
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9
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Hoji A, Kumar R, Gern JE, Bendixsen CG, Seroogy CM, Cook-Mills JM. Cord blood sphingolipids are associated with atopic dermatitis and wheeze in the first year of life. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. GLOBAL 2022; 1:162-171. [PMID: 36117517 PMCID: PMC9479978 DOI: 10.1016/j.jacig.2022.03.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/03/2022] [Accepted: 03/29/2022] [Indexed: 11/18/2022]
Abstract
Background Allergen-sensitized pregnant mice have increased plasma levels of the lipids β-glucosylceramides (βGlcCers) that are transplacentally transferred to the fetus, increased subsets of proinflammatory dendritic cells in the fetal liver and pup lung, and increased allergen-induced offspring lung inflammation. Objective Our aim was to determine whether these preclinical observations extend to a human association of βGlcCers with wheeze and allergic disease in the prospective Wisconsin Infant Study Cohort. Methods We measured 74 lipids in cord blood plasma by using mass spectrometry detection of sphingolipids, eicosanoids, and docosinoids, as well as an ELISA for 13-hydroxyoctadecadienoic acid. Lipid profiles were determined by unbiased Uniform Manifold Approximation and Projection dimensional reduction machine learning. Lipid profiles and a proinflammatory lipid index were analyzed for association with maternal allergy and childhood outcomes of wheeze, atopic dermatitis, cord blood leukocytes, and total IgE level at age 1 year. Results Uniform Manifold Approximation and Projection analysis of lipids defined 8 cluster-specific plasma lipid profiles. Cluster 6 had significantly lower levels of plasma βGlcCers and a higher frequency of cord blood plasmacytoid dendritic cells that mediate anti-inflammatory responses, which is consistent with an anti-inflammatory profile. For clusters and for each infant, a proinflammatory lipid index was calculated to reflect the sum of the proinflammatory lipids minus the anti-inflammatory lipids that were significantly different than in cluster 6. The cluster proinflammatory lipid index was associated with cord blood basophil frequency and with wheeze and atopic dermatitis in the first year of life. The infant inflammatory lipid index was associated with increased risk of wheeze in the first year of life. Conclusion The cord blood proinflammatory lipid index is associated with early-life atopic dermatitis and wheezing.
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Affiliation(s)
- Aki Hoji
- Herman B. Wells Center for Pediatric Research, Department of Pediatrics and Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Ind
| | - Rajesh Kumar
- Ann and Robert H. Lurie Children’s Hospital of Chicago, Division of Allergy and Clinical Immunology, Chicago, Ill
- Northwestern University Feinberg School of Medicine, Department of Pediatrics, Chicago, Ill
| | - James E. Gern
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Marshfield, Wis
| | - Casper G. Bendixsen
- Marshfield Clinic Research Institute, National Farm Medicine Center, Marshfield, Wis
| | - Christine M. Seroogy
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Marshfield, Wis
| | - Joan M. Cook-Mills
- Herman B. Wells Center for Pediatric Research, Department of Pediatrics and Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Ind
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Ind
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10
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Lebold KM, Drake MG, Pincus AB, Pierce AB, Fryer AD, Jacoby DB. Unique Allergic Asthma Phenotypes in Offspring of House Dust Mite-exposed Mice. Am J Respir Cell Mol Biol 2022; 67:89-98. [PMID: 35363997 PMCID: PMC9273226 DOI: 10.1165/rcmb.2021-0535oc] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 04/01/2022] [Indexed: 11/24/2022] Open
Abstract
Asthma is a heterogeneous inflammatory airway disease that develops in response to a combination of genetic predisposition and environmental exposures. Patients with asthma are grouped into phenotypes with shared clinical features and biomarker profiles to help tailor specific therapies. However, factors driving development of specific phenotypes are poorly understood. Prenatal exposure to maternal asthma is a unique risk factor for childhood asthma. Here we tested whether maternal asthma skews asthma phenotypes in offspring. We compared airway hyperreactivity and inflammatory and neurotrophin lung signatures before and after allergen challenge in offspring born to mice exposed to house dust mite (HDM) or vehicle during pregnancy. Maternal HDM exposure potentiated offspring responses to HDM allergen, significantly increasing both airway hyperreactivity and airway eosinophilia compared with control mice. Maternal HDM exposure broadly skewed the offspring cytokine response from a classic allergen-induced T-helper cell type 2 (Th2)-predominant signature in HDM-treated offspring of vehicle-exposed mothers, toward a mixed Th17/Th1 phenotype in HDM-treated offspring of HDM-exposed mothers. Morphologic analysis determined that maternal HDM exposure also increased airway epithelial sensory nerve density and induced distinct neurotrophin signatures to support airway hyperinnervation. Our results demonstrate that maternal allergen exposure alters fetal lung development and promotes a unique inflammatory phenotype at baseline and in response to allergen that persists into adulthood.
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Affiliation(s)
- Katie M. Lebold
- Department of Emergency Medicine, Stanford University School of Medicine, Palo Alto, California; and
| | - Matthew G. Drake
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Oregon Health and Science University, Portland, Oregon
| | - Alexandra B. Pincus
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Oregon Health and Science University, Portland, Oregon
| | - Aubrey B. Pierce
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Oregon Health and Science University, Portland, Oregon
| | - Allison D. Fryer
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Oregon Health and Science University, Portland, Oregon
| | - David B. Jacoby
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Oregon Health and Science University, Portland, Oregon
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Kumar M, Yano N, Fedulov AV. Gestational exposure to titanium dioxide, diesel exhaust, and concentrated urban air particles affects levels of specialized pro-resolving mediators in response to allergen in asthma-susceptible neonate lungs. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2022; 85:243-261. [PMID: 34802391 PMCID: PMC8785906 DOI: 10.1080/15287394.2021.2000906] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Maternal gestational exposures to traffic and urban air pollutant particulates have been linked to increased risk and/or worsening asthma in children; however, mechanisms underlying this vertical transmission are not entirely understood. It was postulated that gestational particle exposure might affect the ability to elicit specialized proresolving mediator (SPM) responses upon allergen encounter in neonates. Lipidomic profiling of 50 SPMs was performed in lungs of neonates born to mice exposed to concentrated urban air particles (CAP), diesel exhaust particles (DEP), or less immunotoxic titanium dioxide particles (TiO2). While asthma-like phenotypes were induced with identical eosinophilia intensity across neonates of all particle-exposed mothers, levels of LXA4, HEPE and HETE isoforms, and HDoHe were only decreased by CAP and DEP only but not by TiO2. However, RvE2 and RvD1 were inhibited by all particles. In contrast, isomers of Maresin1 and Protectin D1 were variably elevated by CAP and DEP, whereas Protectin DX, PGE2, and TxB2 were increased in all groups. Only Protectin D1/DX, MaR1(n-3,DPA), 5(S),15(S)-DiHETE, PGE2, and RvE3 correlated with eosinophilia but the majority of other analytes, elevated or inhibited, showed no marked correlation with inflammation intensity. Evidence indicates that gestational particle exposure leads to both particle-specific and nonspecific effects on the SPM network.
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Affiliation(s)
- Mohan Kumar
- Alpert Medical School of Brown University. Department of Surgery, Rhode Island Hospital. 593 Eddy Street, Providence, RI, USA. 02903
| | - Naohiro Yano
- Alpert Medical School of Brown University. Department of Surgery, Rhode Island Hospital. 593 Eddy Street, Providence, RI, USA. 02903
| | - Alexey V. Fedulov
- Alpert Medical School of Brown University. Department of Surgery, Rhode Island Hospital. 593 Eddy Street, Providence, RI, USA. 02903
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12
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Cook-Mills JM, Averill SH, Lajiness JD. Asthma, allergy and vitamin E: Current and future perspectives. Free Radic Biol Med 2022; 179:388-402. [PMID: 34785320 PMCID: PMC9109636 DOI: 10.1016/j.freeradbiomed.2021.10.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/12/2021] [Accepted: 10/21/2021] [Indexed: 02/03/2023]
Abstract
Asthma and allergic disease result from interactions of environmental exposures and genetics. Vitamin E is one environmental factor that can modify development of allergy early in life and modify responses to allergen after allergen sensitization. Seemingly varied outcomes from vitamin E are consistent with the differential functions of the isoforms of vitamin E. Mechanistic studies demonstrate that the vitamin E isoforms α-tocopherol and γ-tocopherol have opposite functions in regulation of allergic inflammation and development of allergic disease, with α-tocopherol having anti-inflammatory functions and γ-tocopherol having pro-inflammatory functions in allergy and asthma. Moreover, global differences in prevalence of asthma by country may be a result, at least in part, of differences in consumption of these two isoforms of tocopherols. It is critical in clinical and animal studies that measurements of the isoforms of tocopherols be determined in vehicles for the treatments, and in the plasma and/or tissues before and after intervention. As allergic inflammation is modifiable by tocopherol isoforms, differential regulation by tocopherol isoforms provide a foundation for development of interventions to improve lung function in disease and raise the possibility of early life dietary interventions to limit the development of lung disease.
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Affiliation(s)
- Joan M Cook-Mills
- Herman B Wells Center for Pediatric Research, Departments of Pediatrics and Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
| | - Samantha H Averill
- Herman B Wells Center for Pediatric Research, Departments of Pediatrics and Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Jacquelyn D Lajiness
- Herman B Wells Center for Pediatric Research, Departments of Pediatrics and Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
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13
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Taylor M, Pillaye J, Horsnell WGC. Inherent maternal type 2 immunity: Consequences for maternal and offspring health. Semin Immunol 2021; 53:101527. [PMID: 34838445 DOI: 10.1016/j.smim.2021.101527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/10/2021] [Accepted: 11/10/2021] [Indexed: 02/08/2023]
Abstract
An inherent elevation in type 2 immunity is a feature of maternal and offspring immune systems. This has diverse implications for maternal and offspring biology including influencing success of pregnancy, offspring immune development and maternal and offspring ability to control infection and diseases such as allergies. In this review we provide a broad insight into how this immunological feature of pregnancy and early life impacts both maternal and offspring biology. We also suggest how understanding of this axis of immune influence is and may be utilised to improve maternal and offspring health.
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Affiliation(s)
- Matthew Taylor
- Institute of Immunology and Infection Research, Ashworth Laboratories, The Kings Buildings, University of Edinburgh, West Mains Road, Edinburgh, EH9 3JT, UK.
| | - Jamie Pillaye
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK
| | - William Gordon Charles Horsnell
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK; Wellcome Centre for Infectious Diseases Research in Africa (CIDRI-Africa), Institute of Infectious Disease and Molecular Medicine (IDM), Department of Pathology, Division of Immunology, Faculty of Health Science, University of Cape Town, Cape Town, 7925, South Africa.
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14
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Breton CV, Landon R, Kahn LG, Enlow MB, Peterson AK, Bastain T, Braun J, Comstock SS, Duarte CS, Hipwell A, Ji H, LaSalle JM, Miller RL, Musci R, Posner J, Schmidt R, Suglia SF, Tung I, Weisenberger D, Zhu Y, Fry R. Exploring the evidence for epigenetic regulation of environmental influences on child health across generations. Commun Biol 2021; 4:769. [PMID: 34158610 PMCID: PMC8219763 DOI: 10.1038/s42003-021-02316-6] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 06/03/2021] [Indexed: 02/08/2023] Open
Abstract
Environmental exposures, psychosocial stressors and nutrition are all potentially important influences that may impact health outcomes directly or via interactions with the genome or epigenome over generations. While there have been clear successes in large-scale human genetic studies in recent decades, there is still a substantial amount of missing heritability to be elucidated for complex childhood disorders. Mounting evidence, primarily in animals, suggests environmental exposures may generate or perpetuate altered health outcomes across one or more generations. One putative mechanism for these environmental health effects is via altered epigenetic regulation. This review highlights the current epidemiologic literature and supporting animal studies that describe intergenerational and transgenerational health effects of environmental exposures. Both maternal and paternal exposures and transmission patterns are considered, with attention paid to the attendant ethical, legal and social implications.
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Affiliation(s)
- Carrie V Breton
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
| | - Remy Landon
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Linda G Kahn
- Department of Pediatrics, NYU Grossman School of Medicine, New York, NY, USA
| | - Michelle Bosquet Enlow
- Department of Psychiatry, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA
| | - Alicia K Peterson
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Theresa Bastain
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Joseph Braun
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA
| | - Sarah S Comstock
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, USA
| | - Cristiane S Duarte
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center and New York State Psychiatric Institute, New York, NY, USA
| | - Alison Hipwell
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Hong Ji
- Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, California National Primate Research Center, University of California, Davis, Davis, CA, USA
| | - Janine M LaSalle
- Department of Medical Microbiology and Immunology, MIND Institute, Genome Center, University of California, Davis, Davis, CA, USA
| | | | - Rashelle Musci
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Jonathan Posner
- Department of Psychiatry, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center and New York State Psychiatric Institute, New York, NY, USA
| | - Rebecca Schmidt
- Department of Public Health Sciences, UC Davis School of Medicine, Davis, CA, USA
| | | | - Irene Tung
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Daniel Weisenberger
- Department of Biochemistry and Molecular Medicine, University of Southern California, Los Angeles, CA, USA
| | - Yeyi Zhu
- Division of Research, Kaiser Permanente Northern California and Department of Epidemiology and Biostatistics, University of California, San Francisco, Oakland, CA, USA
| | - Rebecca Fry
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, UNC Chapel Hill, Chapel Hill, NC, USA
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15
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Sheikhpour M, Maleki M, Ebrahimi Vargoorani M, Amiri V. A review of epigenetic changes in asthma: methylation and acetylation. Clin Epigenetics 2021; 13:65. [PMID: 33781317 PMCID: PMC8008616 DOI: 10.1186/s13148-021-01049-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 03/04/2021] [Indexed: 12/30/2022] Open
Abstract
Several studies show that childhood and adulthood asthma and its symptoms can be modulated through epigenetic modifications. Epigenetic changes are inheritable modifications that can modify the gene expression without changing the DNA sequence. The most common epigenetic alternations consist of DNA methylation and histone modifications. How these changes lead to asthmatic phenotype or promote the asthma features, in particular by immune pathways regulation, is an understudied topic. Since external effects, like exposure to tobacco smoke, air pollution, and drugs, influence both asthma development and the epigenome, elucidating the role of epigenetic changes in asthma is of great importance. This review presents available evidence on the epigenetic process that drives asthma genes and pathways, with a particular focus on DNA methylation, histone methylation, and acetylation. We gathered and assessed studies conducted in this field over the past two decades. Our study examined asthma in different aspects and also shed light on the limitations and the important factors involved in the outcomes of the studies. To date, most of the studies in this area have been carried out on DNA methylation. Therefore, the need for diagnostic and therapeutic applications through this molecular process calls for more research on the histone modifications in this disease.
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Affiliation(s)
- Mojgan Sheikhpour
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran.
- Microbiology Research Center, Pasteur Institute of Iran, Tehran, Iran.
| | - Mobina Maleki
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran
| | - Maryam Ebrahimi Vargoorani
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran
- Department of Microbiology, College of Basic Sciences, Tehran North Branch, Islamic Azad University, Tehran, Iran
| | - Vahid Amiri
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran
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16
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Venter C, Palumbo MP, Sauder KA, Glueck DH, Liu AH, Yang IV, Ben-Abdallah M, Fleischer DM, Dabelea D. Incidence and timing of offspring asthma, wheeze, allergic rhinitis, atopic dermatitis, and food allergy and association with maternal history of asthma and allergic rhinitis. World Allergy Organ J 2021; 14:100526. [PMID: 33767802 PMCID: PMC7957150 DOI: 10.1016/j.waojou.2021.100526] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/22/2021] [Accepted: 02/05/2021] [Indexed: 02/06/2023] Open
Abstract
Background Studying the developmental precursors of allergy may help explain the mechanisms (or etiology) of allergic disease. We studied childhood respiratory and allergic diseases in a pre-birth cohort from the United States. Objective We assessed the associations between maternal history of asthma and the development of respiratory and allergic diseases in offspring. We also assessed associations with maternal history of allergic rhinitis. Methods Maternal history of asthma and allergic rhinitis was self-reported during early pregnancy. Offspring respiratory and allergy information was obtained from electronic medical records. Adjusted Cox proportional hazard models assessed the associations between maternal history of asthma and development of respiratory and allergic diseases in the offspring up to 8 years. A similar approach was used for maternal history of allergic rhinitis. Results Children born to women with a history of asthma had a 77% greater risk of developing asthma, a 45% greater risk of atopic dermatitis/eczema, and a 65% greater risk of wheeze (all p < 0.01), but no significantly increased risk of allergic rhinitis or food allergies, compared to children born to women with no history of asthma. Maternal history of allergic rhinitis was not associated with any child allergy outcome, and maternal history of both asthma and allergic rhinitis was associated with child atopic dermatitis/eczema only. Conclusions Maternal history of asthma was significantly associated with offspring respiratory and allergic diagnoses. The association between maternal history of asthma and offspring asthma and atopic dermatitis is a novel finding. Our findings may guide physicians who counsel families with a history of maternal asthma and allergic rhinitis about their child's risk of developing respiratory and allergic diseases.
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Affiliation(s)
- Carina Venter
- Section of Allergy and Immunology, University of Colorado School of Medicine, Children's Hospital Colorado, Children's Hospital Colorado, 13123 East 16th Avenue, B518, Aurora, 80045, Colorado, USA.,Department of Pediatrics, University of Colorado School of Medicine, Children's Hospital Colorado
- 13123 East 16th Avenue, Box B518
- Anschutz Medical Campus
- Aurora, 80045, Colorado, USA
| | - Michaela P Palumbo
- Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, 12474 E. 19th Avenue, Mail Stop F426, Aurora, 80045, Colorado, USA
| | - Katherine A Sauder
- Department of Pediatrics, University of Colorado School of Medicine, Children's Hospital Colorado
- 13123 East 16th Avenue, Box B518
- Anschutz Medical Campus
- Aurora, 80045, Colorado, USA.,Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, 12474 E. 19th Avenue, Mail Stop F426, Aurora, 80045, Colorado, USA.,Department of Epidemiology, Colorado School of Public Health, Medicine-Bioinformatics, University of Colorado, 12605 E. 16th Ave, Aurora, 80045, Colorado, USA
| | - Deborah H Glueck
- Department of Pediatrics, University of Colorado School of Medicine, Children's Hospital Colorado
- 13123 East 16th Avenue, Box B518
- Anschutz Medical Campus
- Aurora, 80045, Colorado, USA.,Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, 12474 E. 19th Avenue, Mail Stop F426, Aurora, 80045, Colorado, USA
| | - Andrew H Liu
- Department of Pediatrics, University of Colorado School of Medicine, Children's Hospital Colorado
- 13123 East 16th Avenue, Box B518
- Anschutz Medical Campus
- Aurora, 80045, Colorado, USA
| | - Ivana V Yang
- Department of Epidemiology, Colorado School of Public Health, Medicine-Bioinformatics, University of Colorado, 12605 E. 16th Ave, Aurora, 80045, Colorado, USA.,Department of Medicine, University of Colorado School of Medicine, University of Colorado, 12605 E. 16th Ave, Aurora, 80045, Colorado, USA
| | - Miriam Ben-Abdallah
- Department of Pediatrics, University of Colorado School of Medicine, Children's Hospital Colorado
- 13123 East 16th Avenue, Box B518
- Anschutz Medical Campus
- Aurora, 80045, Colorado, USA
| | - David M Fleischer
- Section of Allergy and Immunology, University of Colorado School of Medicine, Children's Hospital Colorado, Children's Hospital Colorado, 13123 East 16th Avenue, B518, Aurora, 80045, Colorado, USA.,Department of Pediatrics, University of Colorado School of Medicine, Children's Hospital Colorado
- 13123 East 16th Avenue, Box B518
- Anschutz Medical Campus
- Aurora, 80045, Colorado, USA
| | - Dana Dabelea
- Department of Pediatrics, University of Colorado School of Medicine, Children's Hospital Colorado
- 13123 East 16th Avenue, Box B518
- Anschutz Medical Campus
- Aurora, 80045, Colorado, USA.,Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, 12474 E. 19th Avenue, Mail Stop F426, Aurora, 80045, Colorado, USA.,Department of Epidemiology, Colorado School of Public Health, Medicine-Bioinformatics, University of Colorado, 12605 E. 16th Ave, Aurora, 80045, Colorado, USA
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17
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Walker MT, Ferrie RP, Hoji A, Schroeder-Carter LM, Cohen JD, Schnaar RL, Cook-Mills JM. β-Glucosylceramide From Allergic Mothers Enhances Offspring Responsiveness to Allergen. FRONTIERS IN ALLERGY 2021; 2. [PMID: 34368802 PMCID: PMC8345025 DOI: 10.3389/falgy.2021.647134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
In animals and humans, offspring of allergic mothers have increased responsiveness to allergen and the allergen-specificity of the offspring can be different than that of the mother. In our preclinical models, the mother's allergic responses influence development of the fetus and offspring by elevating numbers of cells in dendritic cell subsets. A major question is the identity of maternal factors of allergic mothers that alter offspring development of responsiveness to allergen. Lipids are altered during allergic responses and lipids are transported to the fetus for growth and formation of fetal membranes. We hypothesized that pro-inflammatory lipids, that are elevated in allergic mothers, are transported to the fetus and regulate fetal immune development. We demonstrate in this report that there was a significant 2-fold increase in β-glucosylceramides (βGlcCer) in allergic mothers, the fetal liver and her offspring. The βGlcCer were transported from mother's plasma, across the placenta, to the fetus and in breastmilk to the offspring. Administration of βGlcCer to non-allergic mothers was sufficient for offspring responses to allergen. Importantly, maternal administration of a clinically relevant pharmacological inhibitor of βGlcCer synthase returned βGlcCer to normal levels in the allergic mothers and her offspring and blocked the offspring increase in dendritic cell subsets and offspring allergen responsiveness. In summary, allergic mothers had increased βGlcCer that was transported to offspring and mediated increases in offspring DCs and responsiveness to allergen. These data have a significant impact on our understanding of mechanisms for development of allergies in offspring of allergic mothers and have the potential to lead to novel interventions that significantly impact risk for allergic disease early in life.
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Affiliation(s)
- Matthew T Walker
- Allergy/Immunology Division, Northwestern University School of Medicine, Chicago, IL, United States
| | - Ryan P Ferrie
- Allergy/Immunology Division, Northwestern University School of Medicine, Chicago, IL, United States
| | - Aki Hoji
- Departments of Pediatrics and Microbiology and Immunology, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Lindsay M Schroeder-Carter
- Departments of Pediatrics and Microbiology and Immunology, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Jacob D Cohen
- Departments of Pediatrics and Microbiology and Immunology, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Ronald L Schnaar
- Departments of Pharmacology and Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Joan M Cook-Mills
- Departments of Pediatrics and Microbiology and Immunology, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, United States
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18
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Suen JL, Wu TT, Li YH, Lee CL, Kuo FC, Yan PS, Wu CF, Tran M, Wang CJ, Hung CH, Wu MT, Chan MWY, Huang SK. Environmental Factor-Mediated Transgenerational Inheritance of Igf2r Hypomethylation and Pulmonary Allergic Response via Targeting Dendritic Cells. Front Immunol 2020; 11:603831. [PMID: 33424850 PMCID: PMC7786300 DOI: 10.3389/fimmu.2020.603831] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 11/23/2020] [Indexed: 11/13/2022] Open
Abstract
The developmental origin of allergic diseases has been suggested, but the molecular basis remains enigmatic. Exposure to environmental factors, such as di-(2-ethylhexyl) phthalate (DEHP; a common plasticizer), is suggested to be associated with increased childhood allergic asthma, but the causal relationship and its underlying mechanism remain unknown. This study explored the transgenerational mechanism of DEHP on allergic asthma and dendritic cell (DC) homeostasis through epigenetic modification. In a murine model, ancestral exposure of C57BL/6 mice to low-dose DEHP led to trans-generational promoter hypomethylation of the insulin-like growth factor 2 receptor (Igf2r), concomitant with enhanced Igf2r expression and increased apoptosis prominently in CD8α+ DCs upon ligand stimulation, with consequent reduction in their IL-12 secretion and subsequent T cell-derived IFN-γ, thereby promoting a default Th2-associated pulmonary allergic response. Increased apoptosis was also noted in circulating IGF2Rhigh human DCs. Further, in human placenta, the methylation level at the orthologous IGF2R promoter region was shown to be inversely correlated with the level of maternal DEHP intake. These results support the importance of ancestral phthalate exposure in conferring the trans-generational risk of allergic phenotypes, featuring hypo-methylation of the IGF2R gene and dysregulated DC homeostasis.
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Affiliation(s)
- Jau-Ling Suen
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Tai-Ting Wu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yue-Hyuan Li
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chin-Lai Lee
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Fu-Chen Kuo
- Department of Gynecology and Obstetrics, E-Da Hospital, Kaohsiung, Taiwan
- Graduate Institute of Public Health, Kaohsiung Medical University, Kaohsiung, Taiwan
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan
| | - Pearlly S. Yan
- Division of Hematology, The Ohio State University, Columbus, OH, United States
| | - Chia-Fang Wu
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Mita Tran
- Department of Biomedical Sciences, National Chung Cheng University, Chiayi, Taiwan
| | - Chien-Jen Wang
- National Institute of Environmental Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | - Chih-Hsing Hung
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Pediatrics, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung, Taiwan
| | - Ming-Tsang Wu
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Community Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Michael W. Y. Chan
- Department of Biomedical Sciences, National Chung Cheng University, Chiayi, Taiwan
| | - Shau-Ku Huang
- National Institute of Environmental Health Sciences, National Health Research Institutes, Zhunan, Taiwan
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
- Department of Medicine, Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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19
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Kumar R, Ferrie RP, Balmert LC, Kienzl M, Rifas-Shiman SL, Gold DR, Sordillo JE, Kleinman K, Camargo CA, Litonjua AA, Oken E, Cook-Mills JM. Associations of α- and γ-tocopherol during early life with lung function in childhood. J Allergy Clin Immunol 2020; 146:1349-1357.e3. [PMID: 32344059 DOI: 10.1016/j.jaci.2020.04.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 03/02/2020] [Accepted: 04/15/2020] [Indexed: 01/08/2023]
Abstract
BACKGROUND Tocopherol isoforms may regulate child lung growth and spirometric measures. OBJECTIVE Our aim was to determine the extent to which plasma α-tocopherol (α-T) or γ-tocopherol (γ-T) isoform levels in early childhood or in utero are associated with childhood lung function. METHODS We included 622 participants in the Project Viva cohort who had lung function at a mid-childhood visit (age 6-10 years). Maternal and child tocopherol isoform levels were measured by HPLC at the second trimester and 3 years of age, respectively. Multivariable linear regression models (adjusted for mid-childhood body mass index z scores, maternal education, smoking in pregnancy, and prenatal particulate matter with diameter of <2.5 micrometers (PM2.5) particulate exposure) stratified by tertiles of child γ-T level were used to assess the association of α-T levels with FEV1 and forced vital capacity (FVC) percent predicted. Similarly, models stratified by child α-T tertile evaluated associations of γ-T levels with lung function. We performed similar analyses with maternal second trimester tocopherol isoform levels. RESULTS The median maternal second trimester α-T level was 63 μM (interquartile range = 47-82). The median early-childhood level was 25 μM (interquartile range = 20-33 μM). In the lowest tertile of early-childhood γ-T, children with a higher α-T level (per 10 μM) had a higher mid-childhood FEV1 percent predicted (β = 3.09; 95% CI = 0.58-5.59 and a higher FVC percent predicted (β = 2.77; 95% CI = 0.47-5.06). This protective association of α-T was lost at higher γ-T levels. We did not see any consistent associations of second trimester levels of either α-T or γ-T with mid-childhood FEV1 or FVC. CONCLUSION When γ-T levels were in the lowest tertile, a higher early-childhood α-T level was associated with better lung function at mid-childhood. Second trimester maternal plasma α-T concentration was 3-fold higher than in the adult nonpregnant female population.
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Affiliation(s)
- Rajesh Kumar
- Lurie Children's Hospital, Chicago, Ill; Northwestern University, Chicago, Ill
| | | | | | | | - Sheryl L Rifas-Shiman
- Division of Chronic Disease Research across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Mass
| | - Diane R Gold
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Mass; Channing Division of Network Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, Mass
| | - Joanne E Sordillo
- Division of Chronic Disease Research across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Mass
| | - Ken Kleinman
- Department of Biostatistics and Epidemiology, University of Massachusetts, Amherst, Mass
| | - Carlos A Camargo
- Channing Division of Network Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, Mass; Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Mass
| | - Augusto A Litonjua
- Division of Pediatric Pulmonary Medicine, University of Rochester Medical Center, Rochester, NY
| | - Emily Oken
- Division of Chronic Disease Research across the Lifecourse, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Mass
| | - Joan M Cook-Mills
- Herman B. Wells Center for Pediatric Research, Departments of Pediatrics and Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Ind.
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20
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Lebold KM, Jacoby DB, Drake MG. Inflammatory mechanisms linking maternal and childhood asthma. J Leukoc Biol 2020; 108:113-121. [PMID: 32040236 DOI: 10.1002/jlb.3mr1219-338r] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 12/26/2022] Open
Abstract
Asthma is a chronic inflammatory airway disease characterized by airway hyperresponsiveness, inflammation, and remodeling. Asthma often develops during childhood and causes lifelong decrements in lung function and quality of life. Risk factors for childhood asthma are numerous and include genetic, epigenetic, developmental, and environmental factors. Uncontrolled maternal asthma during pregnancy exposes the developing fetus to inflammatory insults, which further increase the risk of childhood asthma independent of genetic predisposition. This review focuses on the role of maternal asthma in the development of asthma in offspring. We will present maternal asthma as a targetable and modifiable risk factor for childhood asthma and discuss the mechanisms by which maternal inflammation increases childhood asthma risk. Topics include how exposure to maternal asthma in utero shapes structural lung development with a special emphasis on airway nerves, how maternal type-2 cytokines such as IL-5 activate the fetal immune system, and how changes in lung and immune cell development inform responses to aero-allergens later in life. Finally, we highlight emerging evidence that maternal asthma establishes a unique "asthma signature" in the airways of children, leading to novel mechanisms of airway hyperreactivity and inflammatory cell responses.
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Affiliation(s)
- Katie M Lebold
- Division of Pulmonary and Critical Care Medicine, Oregon Health and Science University, Portland, Oregon, USA
| | - David B Jacoby
- Division of Pulmonary and Critical Care Medicine, Oregon Health and Science University, Portland, Oregon, USA
| | - Matthew G Drake
- Division of Pulmonary and Critical Care Medicine, Oregon Health and Science University, Portland, Oregon, USA
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21
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Sodemann EB, Dähling S, Klopfleisch R, Boiarina E, Cataldo D, Alhasan MM, Yildirim AÖ, Witzenrath M, Tabeling C, Conrad ML. Maternal asthma is associated with persistent changes in allergic offspring antibody glycosylation. Clin Exp Allergy 2020; 50:520-531. [PMID: 31912551 DOI: 10.1111/cea.13559] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/14/2019] [Accepted: 12/15/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Maternal asthma during pregnancy is considered an environmental risk factor for asthma development in children. Immunoglobulin G (IgG) antibodies that are transferred from the mother to the fetus are known to act in a pro- or anti-inflammatory manner depending on their glycosylation status. OBJECTIVE Using a mouse model, we examined how maternal allergic airway inflammation during pregnancy influenced offspring experimental asthma severity, as well as maternal and offspring serum IgG antibody glycosylation patterns. Additionally, the effects of maternal and offspring exposure to the same or different allergens were investigated. METHODS Female mice were either sham sensitized or sensitized to casein (CAS) or ovalbumin (OVA) before mating. Subsequently, allergic lung inflammation was induced in pregnant dams via aerosol allergen challenge (sham, CAS or OVA). After weaning, pups were subjected to an experimental asthma protocol using OVA. Asn-297 IgG glycosylation was analysed in maternal and offspring serum. RESULTS When mothers and offspring were sensitized to the same allergen (OVA-OVA), offspring had more severe experimental asthma. This was evidenced by altered antibody concentrations, increased bronchoalveolar lavage inflammatory cell influx and decreased lung tissue and lung draining lymph node regulatory T cell percentages. When mothers and offspring were sensitized to different allergens (CAS-OVA), this phenotype was no longer observed. Additionally, maternal serum from allergic mothers had significantly higher levels of pro-inflammatory IgG1, shown by decreased galactosylation and sialylation at the Asn-297 glycosylation site. Similar glycosylation patterns were observed in the serum of adult allergic offspring from allergic mothers. CONCLUSIONS AND CLINICAL RELEVANCE We observed a strong association between maternal experimental asthma during pregnancy, increased offspring airway inflammation and pro-inflammatory IgG glycosylation patterns in mothers and offspring. IgG glycosylation is not a standard measurement in the clinical setting, and we argue that it may be an important parameter to include in future clinical studies.
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Affiliation(s)
- Elisa B Sodemann
- Institute of Microbiology, Infectious Diseases and Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Sabrina Dähling
- Institute of Systems Immunology, University of Würzburg, Würzburg, Germany
| | - Robert Klopfleisch
- Department of Veterinary Medicine, Freie Universität Berlin, Berlin, Germany
| | - Ekaterina Boiarina
- Department of Infectious Diseases and Respiratory Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Division of Pulmonary Inflammation, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Didier Cataldo
- Laboratory of Tumor and Development Biology, GIGA Research Center, University of Liège, Liège, Belgium.,Department of Respiratory Diseases, CHU Liège, Liège, Belgium
| | - Moumen M Alhasan
- Institute of Microbiology, Infectious Diseases and Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Ali Ö Yildirim
- Comprehensive Pneumology Center (CPC), Institute of Lung Biology and Disease, Member of the German Center for Lung Research (DZL), Helmholtz Zentrum München, Neuherberg, Germany
| | - Martin Witzenrath
- Department of Infectious Diseases and Respiratory Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Division of Pulmonary Inflammation, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Christoph Tabeling
- Department of Infectious Diseases and Respiratory Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Division of Pulmonary Inflammation, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - Melanie L Conrad
- Institute of Microbiology, Infectious Diseases and Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Department of Internal Medicine, Division of Psychosomatic Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
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22
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Hudon Thibeault AA, Laprise C. Cell-Specific DNA Methylation Signatures in Asthma. Genes (Basel) 2019; 10:E932. [PMID: 31731604 PMCID: PMC6896152 DOI: 10.3390/genes10110932] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/08/2019] [Accepted: 11/12/2019] [Indexed: 12/18/2022] Open
Abstract
Asthma is a complex trait, often associated with atopy. The genetic contribution has been evidenced by familial occurrence. Genome-wide association studies allowed for associating numerous genes with asthma, as well as identifying new loci that have a minor contribution to its phenotype. Considering the role of environmental exposure on asthma development, an increasing amount of literature has been published on epigenetic modifications associated with this pathology and especially on DNA methylation, in an attempt to better understand its missing heritability. These studies have been conducted in different tissues, but mainly in blood or its peripheral mononuclear cells. However, there is growing evidence that epigenetic changes that occur in one cell type cannot be directly translated into another one. In this review, we compare alterations in DNA methylation from different cells of the immune system and of the respiratory tract. The cell types in which data are obtained influences the global status of alteration of DNA methylation in asthmatic individuals compared to control (an increased or a decreased DNA methylation). Given that several genes were cell-type-specific, there is a great need for comparative studies on DNA methylation from different cells, but from the same individuals in order to better understand the role of epigenetics in asthma pathophysiology.
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Affiliation(s)
- Andrée-Anne Hudon Thibeault
- Département des sciences fondamentales, Université du Québec à Chicoutimi (UQAC), Saguenay, G7H 2B1 QC, Canada;
- Centre intersectoriel en santé durable (CISD), Université du Québec à Chicoutimi (UQAC), Saguenay, G7H 2B1 QC, Canada
- Quebec Respiratory Health Network, Quebec, G1V 4G5 QC, Canada
| | - Catherine Laprise
- Département des sciences fondamentales, Université du Québec à Chicoutimi (UQAC), Saguenay, G7H 2B1 QC, Canada;
- Centre intersectoriel en santé durable (CISD), Université du Québec à Chicoutimi (UQAC), Saguenay, G7H 2B1 QC, Canada
- Quebec Respiratory Health Network, Quebec, G1V 4G5 QC, Canada
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23
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Fujimura T, Lum SZC, Nagata Y, Kawamoto S, Oyoshi MK. Influences of Maternal Factors Over Offspring Allergies and the Application for Food Allergy. Front Immunol 2019; 10:1933. [PMID: 31507589 PMCID: PMC6716146 DOI: 10.3389/fimmu.2019.01933] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 07/30/2019] [Indexed: 12/19/2022] Open
Abstract
The prevalence of food allergy has been steadily rising worldwide with the highest incidence noted among younger children, and increasingly recognized as a growing public concern. The first known ingestion of foods often causes allergic reaction, suggesting that sensitization of offspring with food allergens may occur during pregnancy and/or through breastfeeding. This creates a milieu that shapes the neonatal immune responses to these allergens. However, the effects of maternal allergen exposure and maternal sensitization with allergens on development of allergies in offspring remain controversial. This review discusses recent advances from human data in our understanding of how maternal factors, namely, food allergens, allergen-specific immunoglobulins, cytokines, genetics, and environmental factors transferred during pregnancy or breastfeeding influence offspring allergies and how such effects may be applicable to food allergy. Based on information obtained from mouse models of asthma and food allergy, the review also dissects the mechanisms by which maternal factors, including the impact of immune complexes, transforming growth factor-β, vitamin A, and regulatory T-cell responses, contribute to the induction of neonatal tolerance vs. development of allergic responses to maternally transferred allergens.
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Affiliation(s)
- Takashi Fujimura
- Division of Immunology, Boston Children's Hospital, Boston, MA, United States.,Hiroshima Research Center for Healthy Aging (HiHA), Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, Japan
| | | | - Yuka Nagata
- Division of Immunology, Boston Children's Hospital, Boston, MA, United States.,Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Seiji Kawamoto
- Hiroshima Research Center for Healthy Aging (HiHA), Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, Japan
| | - Michiko K Oyoshi
- Division of Immunology, Boston Children's Hospital, Boston, MA, United States.,Department of Pediatrics, Harvard Medical School, Boston, MA, United States
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24
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Boukhaled GM, Corrado M, Guak H, Krawczyk CM. Chromatin Architecture as an Essential Determinant of Dendritic Cell Function. Front Immunol 2019; 10:1119. [PMID: 31214161 PMCID: PMC6557980 DOI: 10.3389/fimmu.2019.01119] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 05/02/2019] [Indexed: 12/18/2022] Open
Abstract
Epigenetics has widespread implications in a variety of cellular processes ranging from cell identity and specification, to cellular adaptation to environmental stimuli. While typically associated with heritable changes in gene expression, epigenetic mechanisms are now appreciated to regulate dynamic changes in gene expression—even in post-mitotic cells. Cells of the innate immune system, including dendritic cells (DC), rapidly integrate signals from their microenvironment and respond accordingly, undergoing massive changes in transcriptional programming. This dynamic transcriptional reprogramming relies on epigenetic changes mediated by numerous enzymes and their substrates. This review highlights our current understanding of epigenetic regulation of DC function. Epigenetic mechanisms contribute to the maintenance of the steady state and are important for precise responses to proinflammatory stimuli. Interdependence between epigenetic modifications and the delicate balance of metabolites present another layer of complexity. In addition, dynamic regulation of the expression of proteins that modify chromatin architecture in DCs significantly impacts DC function. Environmental factors, including inflammation, aging, chemicals, nutrients, and lipid mediators, are increasingly appreciated to affect the epigenome in DCs, and, in doing so, regulate host immunity. Our understanding of how epigenetic mechanisms regulate DC function is in its infancy, and it must be expanded in order to discern the mechanisms underlying the balance between health and disease states.
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Affiliation(s)
- Giselle M Boukhaled
- Department of Physiology, Goodman Cancer Research Center, McGill University, Montreal, QC, Canada
| | - Mario Corrado
- Department of Physiology, Goodman Cancer Research Center, McGill University, Montreal, QC, Canada
| | - Hannah Guak
- Department of Physiology, Goodman Cancer Research Center, McGill University, Montreal, QC, Canada
| | - Connie M Krawczyk
- Department of Physiology, Goodman Cancer Research Center, McGill University, Montreal, QC, Canada.,Center for Cancer and Cell Biology, Program in Metabolic and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, United States
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25
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Kumar S, Jeong Y, Ashraf MU, Bae YS. Dendritic Cell-Mediated Th2 Immunity and Immune Disorders. Int J Mol Sci 2019; 20:ijms20092159. [PMID: 31052382 PMCID: PMC6539046 DOI: 10.3390/ijms20092159] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 04/29/2019] [Accepted: 04/29/2019] [Indexed: 12/24/2022] Open
Abstract
Dendritic cells (DCs) are the professional antigen-presenting cells that recognize and present antigens to naïve T cells to induce antigen-specific adaptive immunity. Among the T-cell subsets, T helper type 2 (Th2) cells produce the humoral immune responses required for protection against helminthic disease by activating B cells. DCs induce a Th2 immune response at a certain immune environment. Basophil, eosinophil, mast cells, and type 2 innate lymphoid cells also induce Th2 immunity. However, in the case of DCs, controversy remains regarding which subsets of DCs induce Th2 immunity, which genes in DCs are directly or indirectly involved in inducing Th2 immunity, and the detailed mechanisms underlying induction, regulation, or maintenance of the DC-mediated Th2 immunity against allergic environments and parasite infection. A recent study has shown that a genetic defect in DCs causes an enhanced Th2 immunity leading to severe atopic dermatitis. We summarize the Th2 immune-inducing DC subsets, the genetic and environmental factors involved in DC-mediated Th2 immunity, and current therapeutic approaches for Th2-mediated immune disorders. This review is to provide an improved understanding of DC-mediated Th2 immunity and Th1/Th2 immune balancing, leading to control over their adverse consequences.
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Affiliation(s)
- Sunil Kumar
- Science Research Center (SRC) for Immune Research on Non-Lymphoid Organ (CIRNO), Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do 16419, Korea.
| | - Yideul Jeong
- Science Research Center (SRC) for Immune Research on Non-Lymphoid Organ (CIRNO), Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do 16419, Korea.
- Department of Biological Sciences, Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do 16419, Korea.
| | - Muhammad Umer Ashraf
- Science Research Center (SRC) for Immune Research on Non-Lymphoid Organ (CIRNO), Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do 16419, Korea.
- Department of Biological Sciences, Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do 16419, Korea.
| | - Yong-Soo Bae
- Science Research Center (SRC) for Immune Research on Non-Lymphoid Organ (CIRNO), Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do 16419, Korea.
- Department of Biological Sciences, Sungkyunkwan University, Jangan-gu, Suwon, Gyeonggi-do 16419, Korea.
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26
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Rychlik KA, Sillé FCM. Environmental exposures during pregnancy: Mechanistic effects on immunity. Birth Defects Res 2019; 111:178-196. [PMID: 30708400 DOI: 10.1002/bdr2.1469] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 01/16/2019] [Indexed: 12/21/2022]
Abstract
In human studies, it is well established that exposures during embryonic and fetal development periods can influence immune health. Coupled with genetic predisposition, these exposures can alter lifetime chronic and infectious disease trajectory, and, ultimately, life expectancy. Fortunately, as research advances, mechanisms governing long-term effects of prenatal exposures are coming to light and providing the opportunity for intervention and risk reduction. For instance, human association studies have provided a foundation for the association of prenatal exposure to particulate matter with early immunosuppression and later allergic disease in the offspring. Only recently, the mechanisms mediating this response have been revealed and there is much we have yet to discover. Although cellular immune response is understood for many exposure scenarios, molecular pathways are still unidentified. This review will provide commentary and synthesis of the current literature regarding environmental exposures during pregnancy and mechanisms determining immune outcomes. Shared mechanistic features and current gaps in the state of the science are identified and discussed. To such purpose, we address exposures by their immune effect type: immunosuppression, autoimmunity, inflammation and tissue damage, hypersensitivity, and general immunomodulation.
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Affiliation(s)
- Kristal A Rychlik
- Department of Environmental Health and Engineering, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland
| | - Fenna C M Sillé
- Department of Environmental Health and Engineering, The Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland
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27
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Meyers JL, Winans B, Kelsaw E, Murthy A, Gerber S, Lawrence BP. Environmental cues received during development shape dendritic cell responses later in life. PLoS One 2018; 13:e0207007. [PMID: 30412605 PMCID: PMC6226176 DOI: 10.1371/journal.pone.0207007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 10/23/2018] [Indexed: 12/16/2022] Open
Abstract
Environmental signals mediated via the aryl hydrocarbon receptor (AHR) shape the developing immune system and influence immune function. Developmental exposure to AHR binding chemicals causes persistent changes in CD4+ and CD8+ T cell responses later in life, including dampened clonal expansion and differentiation during influenza A virus (IAV) infection. Naïve T cells require activation by dendritic cells (DCs), and AHR ligands modulate the function of DCs from adult organisms. Yet, the consequences of developmental AHR activation by exogenous ligands on DCs later in life has not been examined. We report here that early life activation of AHR durably reduces the ability of DC to activate naïve IAV-specific CD8+ T cells; however, activation of naïve CD4+ T cells was not impaired. Also, DCs from developmentally exposed offspring migrated more poorly than DCs from control dams in both in vivo and ex vivo assessments of DC migration. Conditional knockout mice, which lack Ahr in CD11c lineage cells, suggest that dampened DC emigration is intrinsic to DCs. Yet, levels of chemokine receptor 7 (CCR7), a key regulator of DC trafficking, were generally unaffected. Gene expression analyses reveal changes in Lrp1, Itgam, and Fcgr1 expression, and point to alterations in genes that regulate DC migration and antigen processing and presentation as being among pathways disrupted by inappropriate AHR signaling during development. These studies establish that AHR activation during development causes long-lasting changes to DCs, and provide new information regarding how early life environmental cues shape immune function later in life.
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Affiliation(s)
- Jessica L. Meyers
- Department of Environmental Medicine, University of Rochester School of Medicine & Dentistry, Rochester, New York, United States of America
| | - Bethany Winans
- Department of Environmental Medicine, University of Rochester School of Medicine & Dentistry, Rochester, New York, United States of America
| | - Erin Kelsaw
- Department of Microbiology and Immunology, University of Rochester School of Medicine & Dentistry, Rochester, New York, United States of America
| | - Aditi Murthy
- Department of Microbiology and Immunology, University of Rochester School of Medicine & Dentistry, Rochester, New York, United States of America
| | - Scott Gerber
- Department of Microbiology and Immunology, University of Rochester School of Medicine & Dentistry, Rochester, New York, United States of America
- Department of Surgery, University of Rochester School of Medicine & Dentistry, Rochester, New York, United States of America
| | - B. Paige Lawrence
- Department of Environmental Medicine, University of Rochester School of Medicine & Dentistry, Rochester, New York, United States of America
- Department of Microbiology and Immunology, University of Rochester School of Medicine & Dentistry, Rochester, New York, United States of America
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28
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Mørkve Knudsen T, Rezwan FI, Jiang Y, Karmaus W, Svanes C, Holloway JW. Transgenerational and intergenerational epigenetic inheritance in allergic diseases. J Allergy Clin Immunol 2018; 142:765-772. [PMID: 30040975 PMCID: PMC6167012 DOI: 10.1016/j.jaci.2018.07.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/13/2018] [Accepted: 07/17/2018] [Indexed: 01/07/2023]
Abstract
It has become clear that early life (including in utero exposures) is a key window of vulnerability during which environmental exposures can alter developmental trajectories and initiate allergic disease development. However, recent evidence suggests that there might be additional windows of vulnerability to environmental exposures in the parental generation before conception or even in previous generations. There is evidence suggesting that information of prior exposures can be transferred across generations, and experimental animal models suggest that such transmission can be conveyed through epigenetic mechanisms. Although the molecular mechanisms of intergenerational and transgenerationational epigenetic transmission have yet to be determined, the realization that environment before conception can alter the risks of allergic diseases has profound implications for the development of public health interventions to prevent disease. Future research in both experimental models and in multigenerational human cohorts is needed to better understand the role of intergenerational and transgenerational effects in patients with asthma and allergic disease. This will provide the knowledge basis for a new approach to efficient intervention strategies aimed at reducing the major public health challenge of these conditions.
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Affiliation(s)
| | - Faisal I Rezwan
- Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Yu Jiang
- Division of Epidemiology, Biostatistics, and Environmental Health, School of Public Health, University of Memphis, Memphis, Tenn
| | - Wilfried Karmaus
- Division of Epidemiology, Biostatistics, and Environmental Health, School of Public Health, University of Memphis, Memphis, Tenn
| | - Cecilie Svanes
- Centre for International Health, Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway; Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | - John W Holloway
- Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.
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29
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Walker MT, Green JE, Ferrie RP, Queener AM, Kaplan MH, Cook-Mills JM. Mechanism for initiation of food allergy: Dependence on skin barrier mutations and environmental allergen costimulation. J Allergy Clin Immunol 2018; 141:1711-1725.e9. [PMID: 29454836 PMCID: PMC5938139 DOI: 10.1016/j.jaci.2018.02.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 01/23/2018] [Accepted: 02/07/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Mechanisms for the development of food allergy in neonates are unknown but clearly linked in patient populations to a genetic predisposition to skin barrier defects. Whether skin barrier defects contribute functionally to development of food allergy is unknown. OBJECTIVE The purpose of the study was to determine whether skin barrier mutations, which are primarily heterozygous in patient populations, contribute to the development of food allergy. METHODS Mice heterozygous for the filaggrin (Flg)ft and Tmem79ma mutations were skin sensitized with environmental and food allergens. After sensitization, mice received oral challenge with food allergen, and then inflammation, inflammatory mediators, and anaphylaxis were measured. RESULTS We define development of inflammation, inflammatory mediators, and food allergen-induced anaphylaxis in neonatal mice with skin barrier mutations after brief concurrent cutaneous exposure to food and environmental allergens. Moreover, neonates of allergic mothers have increased responses to suboptimal sensitization with food allergens. Importantly, responses to food allergens by these neonatal mice were dependent on genetic defects in skin barrier function and on exposure to environmental allergens. ST2 blockade during skin sensitization inhibited the development of anaphylaxis, antigen-specific IgE, and inflammatory mediators. Neonatal anaphylactic responses and antigen-specific IgE were also inhibited by oral pre-exposure to food allergen, but interestingly, this was blunted by concurrent pre-exposure of the skin to environmental allergen. CONCLUSION These studies uncover mechanisms for food allergy sensitization and anaphylaxis in neonatal mice that are consistent with features of human early-life exposures and genetics in patients with clinical food allergy and demonstrate that changes in barrier function drive development of anaphylaxis to food allergen.
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Affiliation(s)
- Matthew T Walker
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Jeremy E Green
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Ryan P Ferrie
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Ashley M Queener
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Mark H Kaplan
- Department of Pediatrics, HB Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, Ind
| | - Joan M Cook-Mills
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, Ill.
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30
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Jõgi NO, Svanes C, Siiak SP, Logan E, Holloway JW, Igland J, Johannessen A, Levin M, Real FG, Schlunssen V, Horsnell WGC, Bertelsen RJ. Zoonotic helminth exposure and risk of allergic diseases: A study of two generations in Norway. Clin Exp Allergy 2017; 48:66-77. [PMID: 29117468 DOI: 10.1111/cea.13055] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 09/01/2017] [Accepted: 10/27/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND Animal and human studies indicate that definitive host helminth infections may confer protection from allergies. However, zoonotic helminths, such as Toxocara species (spp.), have been associated with increased allergies. OBJECTIVE We describe the prevalence of Toxocara spp. and Ascaris spp. seropositivity and associations with allergic diseases and sensitization, in 2 generations in Bergen, Norway. METHODS Serum levels of total IgG4, anti-Toxocara spp. IgG4 and Ascaris spp. IgG4 were established by ELISA in 2 cohorts: parents born 1945-1972 (n = 171) and their offspring born 1969-2003 (n = 264). Allergic outcomes and covariates were recorded through interviews and clinical examinations including serum IgEs and skin prick tests. RESULTS Anti-Ascaris spp. IgG4 was detected in 29.2% of parents and 10.3% of offspring, and anti-Toxocara spp. IgG4 in 17.5% and 8.0% of parents and offspring, respectively. Among offspring, anti-Toxocara spp. IgG4 was associated with pet keeping before age 15 (OR = 6.15; 95% CI = 1.37-27.5) and increasing BMI (1.16[1.06-1.25] per kg/m2 ). Toxocara spp. seropositivity was associated with wheeze (2.97[1.45- 7.76]), hayfever (4.03[1.63-9.95]), eczema (2.89[1.08-7.76]) and cat sensitization (5.65[1.92-16.6]) among offspring, but was not associated with allergic outcomes among parents. Adjustment for childhood or current pet keeping did not alter associations with allergies. Parental Toxocara spp. seropositivity was associated with increased offspring allergies following a sex-specific pattern. CONCLUSIONS & CLINICAL RELEVANCE Zoonotic helminth exposure in Norway was less frequent in offspring than parents; however, Toxocara spp. seropositivity was associated with increased risk of allergic manifestations in the offspring generation, but not among parents. Changes in response to helminth exposure may provide insights into the increase in allergy incidence in affluent countries.
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Affiliation(s)
- N O Jõgi
- University of Tartu, Tartu, Estonia.,Centre for International Health, University of Bergen, Bergen, Norway
| | - C Svanes
- Centre for International Health, University of Bergen, Bergen, Norway.,Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway
| | | | - E Logan
- University of Cape Town, Cape Town, South Africa
| | - J W Holloway
- Human Development & Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - J Igland
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - A Johannessen
- Centre for International Health, University of Bergen, Bergen, Norway
| | - M Levin
- University of Cape Town, Cape Town, South Africa
| | - F G Real
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - V Schlunssen
- Aarhus University, Aarhus, Denmark.,National Research Centre for the Working Environment, Copenhagen, Denmark
| | - W G C Horsnell
- Institute of Infectious Disease and Molecular Medicine/Division of Immunology, University of Cape Town, Cape Town, South Africa.,Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK.,Laboratory of Molecular and Experimental Immunology and Neurogenetics, UMR 7355, CNRS-University of Orleans and Le Studium Institute for Advanced Studies, Orléans, France
| | - R J Bertelsen
- Department of Occupational Medicine, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Science, University of Bergen, Bergen, Norway
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31
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Pizzino G, Irrera N, Cucinotta M, Pallio G, Mannino F, Arcoraci V, Squadrito F, Altavilla D, Bitto A. Oxidative Stress: Harms and Benefits for Human Health. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:8416763. [PMID: 28819546 PMCID: PMC5551541 DOI: 10.1155/2017/8416763] [Citation(s) in RCA: 1872] [Impact Index Per Article: 267.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 07/05/2017] [Indexed: 02/07/2023]
Abstract
Oxidative stress is a phenomenon caused by an imbalance between production and accumulation of oxygen reactive species (ROS) in cells and tissues and the ability of a biological system to detoxify these reactive products. ROS can play, and in fact they do it, several physiological roles (i.e., cell signaling), and they are normally generated as by-products of oxygen metabolism; despite this, environmental stressors (i.e., UV, ionizing radiations, pollutants, and heavy metals) and xenobiotics (i.e., antiblastic drugs) contribute to greatly increase ROS production, therefore causing the imbalance that leads to cell and tissue damage (oxidative stress). Several antioxidants have been exploited in recent years for their actual or supposed beneficial effect against oxidative stress, such as vitamin E, flavonoids, and polyphenols. While we tend to describe oxidative stress just as harmful for human body, it is true as well that it is exploited as a therapeutic approach to treat clinical conditions such as cancer, with a certain degree of clinical success. In this review, we will describe the most recent findings in the oxidative stress field, highlighting both its bad and good sides for human health.
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Affiliation(s)
- Gabriele Pizzino
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Natasha Irrera
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Mariapaola Cucinotta
- Department of Biomedical Sciences, Dentistry and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Giovanni Pallio
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Federica Mannino
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Vincenzo Arcoraci
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Francesco Squadrito
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Domenica Altavilla
- Department of Biomedical Sciences, Dentistry and Morphological and Functional Images, University of Messina, Messina, Italy
| | - Alessandra Bitto
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
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Gregory DJ, Kobzik L, Yang Z, McGuire CC, Fedulov AV. Transgenerational transmission of asthma risk after exposure to environmental particles during pregnancy. Am J Physiol Lung Cell Mol Physiol 2017; 313:L395-L405. [PMID: 28495853 DOI: 10.1152/ajplung.00035.2017] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 04/11/2017] [Accepted: 05/03/2017] [Indexed: 01/23/2023] Open
Abstract
Exposure to environmental particles during pregnancy increases asthma susceptibility of the offspring. We tested the hypothesis that this transmission continues to F2 and F3 generations and occurs via epigenetic mechanisms. We compared allergic susceptibility of three generations of BALB/c offspring after a single maternal exposure during pregnancy to diesel exhaust particles or concentrated urban air particles. After pregnant dams received intranasal instillations of particle suspensions or control, their F1, F2, and F3 offspring were tested in a low-dose ovalbumin protocol for sensitivity to allergic asthma. We found that the elevated susceptibility after maternal exposure to particles during pregnancy persists into F2 and, with lesser magnitude, into F3 generations. This was evident from elevated eosinophil counts in bronchoalveolar lavage (BAL) fluid, histopathological changes of allergic airway disease, and increased BAL levels of IL-5 and IL-13. We have previously shown that dendritic cells (DCs) can mediate transmission of risk upon adoptive transfer. Therefore, we used an enhanced reduced representation bisulfite sequencing protocol to quantify DNA methylation in DCs from each generation. Distinct methylation changes were identified in F1, F2, and F3 DCs. The subset of altered loci shared across the three generations were not linked to known allergy genes or pathways but included a number of genes linked to chromatin modification, suggesting potential interaction with other epigenetic mechanisms (e.g., histone modifications). The data indicate that pregnancy airway exposure to diesel exhaust particles (DEP) triggers a transgenerationally transmitted asthma susceptibility and suggests a mechanistic role for epigenetic alterations in DCs in this process.
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Affiliation(s)
- David J Gregory
- Molecular and Integrative Physiological Sciences, Harvard T. H. Chan School of Public Health, Boston, Massachusetts; and.,Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Lester Kobzik
- Molecular and Integrative Physiological Sciences, Harvard T. H. Chan School of Public Health, Boston, Massachusetts; and
| | - Zhiping Yang
- Molecular and Integrative Physiological Sciences, Harvard T. H. Chan School of Public Health, Boston, Massachusetts; and
| | - Connor C McGuire
- Molecular and Integrative Physiological Sciences, Harvard T. H. Chan School of Public Health, Boston, Massachusetts; and.,Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts
| | - Alexey V Fedulov
- Molecular and Integrative Physiological Sciences, Harvard T. H. Chan School of Public Health, Boston, Massachusetts; and .,Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts
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Bertelsen RJ, Rava M, Carsin AE, Accordini S, Benediktsdóttir B, Dratva J, Franklin KA, Heinrich J, Holm M, Janson C, Johannessen A, Jarvis DL, Jogi R, Leynaert B, Norback D, Omenaas ER, Raherison C, Sánchez‐Ramos JL, Schlünssen V, Sigsgaard T, Dharmage SC, Svanes C. Clinical markers of asthma and IgE assessed in parents before conception predict asthma and hayfever in the offspring. Clin Exp Allergy 2017; 47:627-638. [PMID: 28199764 PMCID: PMC5447870 DOI: 10.1111/cea.12906] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 01/23/2017] [Accepted: 02/01/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND Mice models suggest epigenetic inheritance induced by parental allergic disease activity. However, we know little of how parental disease activity before conception influences offspring's asthma and allergy in humans. OBJECTIVE We aimed to assess the associations of parental asthma severity, bronchial hyperresponsiveness (BHR), and total and specific IgEs, measured before conception vs. after birth, with offspring asthma and hayfever. METHODS The study included 4293 participants (mean age 34, 47% men) from the European Community Respiratory Health Survey (ECRHS) with information on asthma symptom severity, BHR, total and specific IgEs from 1991 to 1993, and data on 9100 offspring born 1972-2012. Adjusted relative risk ratios (aRRR) for associations of parental clinical outcome with offspring allergic disease were estimated with multinomial logistic regressions. RESULTS Offspring asthma with hayfever was more strongly associated with parental BHR and specific IgE measured before conception than after birth [BHR: aRRR = 2.96 (95% CI: 1.92, 4.57) and 1.40 (1.03, 1.91), respectively; specific IgEs: 3.08 (2.13, 4.45) and 1.83 (1.45, 2.31), respectively]. This was confirmed in a sensitivity analysis of a subgroup of offspring aged 11-22 years with information on parental disease activity both before and after birth. CONCLUSION & CLINICAL RELEVANCE Parental BHR and specific IgE were associated with offspring asthma and hayfever, with the strongest associations observed with clinical assessment before conception as compared to after birth of the child. If the hypothesis is confirmed in other studies, parental disease activity assessed before conception may prove useful for identifying children at risk for developing asthma with hayfever.
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Affiliation(s)
- R. J. Bertelsen
- Department of Clinical ScienceUniversity of BergenBergenNorway
- Department of Occupational MedicineHaukeland University HospitalBergenNorway
| | - M. Rava
- INSERM U1168, VIMA: Aging and Chronic DiseasesEpidemiological and Public Health ApproachesVillejuifFrance
- UMR‐S 1168Univ Versailles St‐Quentin‐en‐YvelinesMontigny le BretonneuxFrance
- Genetic and Molecular Epidemiology GroupSpanish National Cancer Research Center (CNIO)MadridSpain
| | - A. E. Carsin
- ISGlobalCentre for Research in Environmental Epidemiology (CREAL)BarcelonaSpain
- Universitat Pompeu FabraBarcelonaSpain
- CIBER de Epidemiología y Salud Pública (CIBERESP)BarcelonaSpain
| | - S. Accordini
- Unit of Epidemiology and Medical StatisticsDepartment of Diagnostics and Public HealthUniversity of VeronaVeronaItaly
| | | | - J. Dratva
- Department of Epidemiology and Public HealthSwiss Tropical and Public Health InstituteBaselSwitzerland
| | - K. A. Franklin
- Department of Surgical and Perioperative SciencesUmeå UniversityUmeåSweden
| | - J. Heinrich
- Helmholtz Zentrum MünchenGerman Research Center for Environmental HealthInstitute of Epidemiology INeuherbergGermany
- Institute and Outpatient Clinic for Occupational, Social, and Environmental MedicineLudwig Maximilians University MunichMunchenGermany
| | - M. Holm
- Department of Occupational and Environmental MedicineSahlgrenska University HospitalGothenburgSweden
| | - C. Janson
- Department of Medical SciencesUppsala UniversityUppsalaSweden
| | - A. Johannessen
- Centre for International HealthDepartment of Global Public Health and Primary CareUniversity of BergenBergenNorway
- Centre for Clinical ResearchHaukeland University HospitalBergenNorway
| | - D. L. Jarvis
- Respiratory Epidemiology, Occupational Medicine and Public HealthNational Heart and Lung InstituteImperial CollegeLondonUK
| | - R. Jogi
- Tartu University HospitalLung ClinicTartuEstonia
| | - B. Leynaert
- Inserm, UMR 1152Pathophysiology and Epidemiology of Respiratory Diseases, Epidemiology TeamParisFrance
- UMR 1152University Paris Diderot Paris 7ParisFrance
| | - D. Norback
- Department of Medical SciencesUppsala UniversityUppsalaSweden
| | - E. R. Omenaas
- Department of Clinical ScienceUniversity of BergenBergenNorway
- Centre for Clinical ResearchHaukeland University HospitalBergenNorway
| | - C. Raherison
- INSERM U897 Bordeaux UniversityBordeaux CedexFrance
| | | | - V. Schlünssen
- Department of Public HealthAarhus UniversityAarhusDenmark
- National Research Centre for the Working EnvironmentCopenhagenDenmark
| | - T. Sigsgaard
- Department of Public HealthAarhus UniversityAarhusDenmark
| | - S. C. Dharmage
- Allergy and Lung Health Unit, Melbourne School of Population HealthThe University of MelbourneMelbourneVic.Australia
| | - C. Svanes
- Department of Occupational MedicineHaukeland University HospitalBergenNorway
- Centre for International HealthDepartment of Global Public Health and Primary CareUniversity of BergenBergenNorway
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Maternal house dust mite exposure during pregnancy enhances severity of house dust mite-induced asthma in murine offspring. J Allergy Clin Immunol 2017; 140:1404-1415.e9. [PMID: 28192144 DOI: 10.1016/j.jaci.2016.12.972] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 12/06/2016] [Accepted: 12/12/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND Atopic status of the mother and maternal exposure to environmental factors are associated with increased asthma risk. Moreover, animal models demonstrate that exposure to allergens in strongly sensitized mothers influences offspring asthma development, suggesting that in utero exposures can influence offspring asthma. However, it is unclear whether maternal exposure to common human allergens such as house dust mite (HDM), in the absence of additional adjuvants, influences offspring asthma development. OBJECTIVE We sought to determine whether maternal HDM exposure influences asthma development in offspring. METHODS Pregnant female mice were exposed to PBS or HDM during pregnancy. Using offspring of PBS- or HDM-exposed mothers, the magnitude of HDM or Aspergillus fumigatus (AF) extract-induced airway hyperresponsiveness (AHR), airway inflammation, immunoglobulin production, TH2-associated cytokine synthesis, and pulmonary dendritic cell activity was assessed. RESULTS Compared with offspring of PBS-exposed mothers, offspring of HDM-exposed mothers demonstrate increased AHR, airway inflammation, TH2 cytokine production, and immunoglobulin levels and a modest decrease in the phagocytic capacity of pulmonary macrophage populations following HDM exposure. Increased sensitivity to AF-induced airway disease was not observed. Offspring of HDM-exposed B-cell-deficient mothers also demonstrated increased HDM-induced AHR, suggesting that transfer of maternal immunoglobulins is not required. CONCLUSIONS Our data demonstrate that maternal exposure to HDM during pregnancy increases asthma sensitivity in offspring in an HDM-specific manner, suggesting that vertical transmission of maternal immune responses may be involved. These findings have important implications for regulation of asthma risk, and suggest that exposure to HDM in the developed world may have underappreciated influences on the overall prevalence of allergic asthma.
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Galli F, Azzi A, Birringer M, Cook-Mills JM, Eggersdorfer M, Frank J, Cruciani G, Lorkowski S, Özer NK. Vitamin E: Emerging aspects and new directions. Free Radic Biol Med 2017; 102:16-36. [PMID: 27816611 DOI: 10.1016/j.freeradbiomed.2016.09.017] [Citation(s) in RCA: 256] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 09/11/2016] [Accepted: 09/22/2016] [Indexed: 12/30/2022]
Abstract
The discovery of vitamin E will have its 100th anniversary in 2022, but we still have more questions than answers regarding the biological functions and the essentiality of vitamin E for human health. Discovered as a factor essential for rat fertility and soon after characterized for its properties of fat-soluble antioxidant, vitamin E was identified to have signaling and gene regulation effects in the 1980s. In the same years the cytochrome P-450 dependent metabolism of vitamin E was characterized and a first series of studies on short-chain carboxyethyl metabolites in the 1990s paved the way to the hypothesis of a biological role for this metabolism alternative to vitamin E catabolism. In the last decade other physiological metabolites of vitamin E have been identified, such as α-tocopheryl phosphate and the long-chain metabolites formed by the ω-hydroxylase activity of cytochrome P-450. Recent findings are consistent with gene regulation and homeostatic roles of these metabolites in different experimental models, such as inflammatory, neuronal and hepatic cells, and in vivo in animal models of acute inflammation. Molecular mechanisms underlying these responses are under investigation in several laboratories and side-glances to research on other fat soluble vitamins may help to move faster in this direction. Other emerging aspects presented in this review paper include novel insights on the mechanisms of reduction of the cardiovascular risk, immunomodulation and antiallergic effects, neuroprotection properties in models of glutamate excitotoxicity and spino-cerebellar damage, hepatoprotection and prevention of liver toxicity by different causes and even therapeutic applications in non-alcoholic steatohepatitis. We here discuss these topics with the aim of stimulating the interest of the scientific community and further research activities that may help to celebrate this anniversary of vitamin E with an in-depth knowledge of its action as vitamin.
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Affiliation(s)
- Francesco Galli
- Department of Pharmaceutical Sciences, University of Perugia, Laboratory of Clinical Biochemistry and Nutrition, Via del Giochetto, 06126 Perugia, Italy.
| | - Angelo Azzi
- USDA-HNRCA at Tufts University, 711 Washington St., Boston, MA 02111, United States.
| | - Marc Birringer
- Department of Nutritional, Food and Consumer Sciences, Fulda University of Applied Sciences, Leipziger Straße 123, 36037 Fulda, Germany.
| | - Joan M Cook-Mills
- Allergy/Immunology Division, Northwestern University, 240 E Huron, Chicago, IL 60611, United States.
| | | | - Jan Frank
- Institute of Biological Chemistry and Nutrition, University of Hohenheim, Garbenstr. 28, 70599 Stuttgart, Germany.
| | - Gabriele Cruciani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Italy.
| | - Stefan Lorkowski
- Institute of Nutrition, Friedrich Schiller University Jena, Dornburger Str. 25, 07743 Jena, Germany; Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD), Halle-Jena-Leipzig, Germany.
| | - Nesrin Kartal Özer
- Department of Biochemistry, Faculty of Medicine, Genetic and Metabolic Diseases Research Center (GEMHAM), Marmara University, 34854 Maltepe, Istanbul, Turkey.
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Abdala-Valencia H, Soveg F, Cook-Mills JM. γ-Tocopherol supplementation of allergic female mice augments development of CD11c+CD11b+ dendritic cells in utero and allergic inflammation in neonates. Am J Physiol Lung Cell Mol Physiol 2016; 310:L759-71. [PMID: 26801566 DOI: 10.1152/ajplung.00301.2015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 01/20/2016] [Indexed: 11/22/2022] Open
Abstract
γ-Tocopherol increases responses to allergen challenge in allergic adult mice, but it is not known whether γ-tocopherol regulates the development of allergic disease. Development of allergic disease often occurs early in life. In clinical studies and animal models, offspring of allergic mothers have increased responsiveness to allergen challenge. Therefore, we determined whether γ-tocopherol augments development of allergic responses in offspring of allergic female mice. Allergic female mice were supplemented with γ-tocopherol starting at mating. The pups from allergic mothers developed allergic lung responses, whereas pups from saline-treated mothers did not respond to allergen challenge. The γ-tocopherol supplementation of allergic female mice increased the numbers of eosinophils twofold in the pup bronchoalveolar lavage and lungs after allergen challenge. There was also about a twofold increase in pup lung CD11b(+) subsets of CD11c(+) dendritic cells and in numbers of these dendritic cells expressing the transcription factor IRF4. There was no change in several CD11b(-) dendritic cell subsets. Furthermore, maternal supplementation with γ-tocopherol increased the number of fetal liver CD11b(+)CD11c(+) dendritic cells twofold in utero. In the pups, γ-tocopherol increased lung expression of the inflammatory mediators CCL11, amphiregulin, activin A, and IL-5. In conclusion, maternal supplementation with γ-tocopherol increased fetal development of subsets of dendritic cells that are critical for allergic responses and increased development of allergic responses in pups from allergic mothers. These results have implications for supplementation of allergic mothers with γ-tocopherol in prenatal vitamins.
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Affiliation(s)
- Hiam Abdala-Valencia
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Frank Soveg
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Joan M Cook-Mills
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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Abstract
Asthma occurs as a result of complex interactions of environmental and genetic factors. Clinical studies and animal models of asthma indicate offspring of allergic mothers have increased risk of development of allergies. Environmental factors including stress-induced corticosterone and vitamin E isoforms during pregnancy regulate the risk for offspring development of allergy. In this review, we discuss mechanisms for the development of allergic disease early in life, environmental factors that may impact the development of risk for allergic disease early in life, and how the variation in global prevalence of asthma may be explained, at least in part, by some environmental components.
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Yang IV, Pedersen BS, Liu A, O'Connor GT, Teach SJ, Kattan M, Misiak RT, Gruchalla R, Steinbach SF, Szefler SJ, Gill MA, Calatroni A, David G, Hennessy CE, Davidson EJ, Zhang W, Gergen P, Togias A, Busse WW, Schwartz DA. DNA methylation and childhood asthma in the inner city. J Allergy Clin Immunol 2015; 136:69-80. [PMID: 25769910 PMCID: PMC4494877 DOI: 10.1016/j.jaci.2015.01.025] [Citation(s) in RCA: 156] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 01/21/2015] [Accepted: 01/23/2015] [Indexed: 01/15/2023]
Abstract
BACKGROUND Epigenetic marks are heritable, influenced by the environment, direct the maturation of T lymphocytes, and in mice enhance the development of allergic airway disease. Thus it is important to define epigenetic alterations in asthmatic populations. OBJECTIVE We hypothesize that epigenetic alterations in circulating PBMCs are associated with allergic asthma. METHODS We compared DNA methylation patterns and gene expression in inner-city children with persistent atopic asthma versus healthy control subjects by using DNA and RNA from PBMCs. Results were validated in an independent population of asthmatic patients. RESULTS Comparing asthmatic patients (n = 97) with control subjects (n = 97), we identified 81 regions that were differentially methylated. Several immune genes were hypomethylated in asthma, including IL13, RUNX3, and specific genes relevant to T lymphocytes (TIGIT). Among asthmatic patients, 11 differentially methylated regions were associated with higher serum IgE concentrations, and 16 were associated with percent predicted FEV1. Hypomethylated and hypermethylated regions were associated with increased and decreased gene expression, respectively (P < 6 × 10(-12) for asthma and P < .01 for IgE). We further explored the relationship between DNA methylation and gene expression using an integrative analysis and identified additional candidates relevant to asthma (IL4 and ST2). Methylation marks involved in T-cell maturation (RUNX3), TH2 immunity (IL4), and oxidative stress (catalase) were validated in an independent asthmatic cohort of children living in the inner city. CONCLUSIONS Our results demonstrate that DNA methylation marks in specific gene loci are associated with asthma and suggest that epigenetic changes might play a role in establishing the immune phenotype associated with asthma.
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Affiliation(s)
- Ivana V Yang
- Department of Medicine, University of Colorado, School of Medicine, Aurora, Colo; Departments of Pediatrics and Medicine, National Jewish Health, Denver, Colo
| | - Brent S Pedersen
- Department of Medicine, University of Colorado, School of Medicine, Aurora, Colo
| | - Andrew Liu
- Departments of Pediatrics and Medicine, National Jewish Health, Denver, Colo
| | - George T O'Connor
- Department of Medicine, Boston University School of Medicine, Boston, Mass
| | | | - Meyer Kattan
- Columbia University Medical Center, New York, NY
| | | | | | | | - Stanley J Szefler
- Department of Pediatrics, Children's Hospital Colorado and University of Colorado, School of Medicine, Aurora, Colo
| | - Michelle A Gill
- University of Texas, Southwestern Medical Center, Dallas, Tex
| | | | | | - Corinne E Hennessy
- Department of Medicine, University of Colorado, School of Medicine, Aurora, Colo
| | - Elizabeth J Davidson
- Department of Medicine, University of Colorado, School of Medicine, Aurora, Colo
| | - Weiming Zhang
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado, Aurora, Colo
| | - Peter Gergen
- National Institute of Allergy and Infectious Diseases, Bethesda, Md
| | - Alkis Togias
- National Institute of Allergy and Infectious Diseases, Bethesda, Md
| | - William W Busse
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | - David A Schwartz
- Department of Medicine, University of Colorado, School of Medicine, Aurora, Colo; Departments of Pediatrics and Medicine, National Jewish Health, Denver, Colo; Department of Immunology, University of Colorado, Aurora, Colo.
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Krauss-Etschmann S, Meyer KF, Dehmel S, Hylkema MN. Inter- and transgenerational epigenetic inheritance: evidence in asthma and COPD? Clin Epigenetics 2015; 7:53. [PMID: 26052354 PMCID: PMC4456695 DOI: 10.1186/s13148-015-0085-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 04/09/2015] [Indexed: 12/21/2022] Open
Abstract
Evidence is now emerging that early life environment can have lifelong effects on metabolic, cardiovascular, and pulmonary function in offspring, a concept also known as fetal or developmental programming. In mammals, developmental programming is thought to occur mainly via epigenetic mechanisms, which include DNA methylation, histone modifications, and expression of non-coding RNAs. The effects of developmental programming can be induced by the intrauterine environment, leading to intergenerational epigenetic effects from one generation to the next. Transgenerational epigenetic inheritance may be considered when developmental programming is transmitted across generations that were not exposed to the initial environment which triggered the change. So far, inter- and transgenerational programming has been mainly described for cardiovascular and metabolic disease risk. In this review, we discuss available evidence that epigenetic inheritance also occurs in respiratory diseases, using asthma and chronic obstructive pulmonary disease (COPD) as examples. While multiple epidemiological as well as animal studies demonstrate effects of 'toxic' intrauterine exposure on various asthma-related phenotypes in the offspring, only few studies link epigenetic marks to the observed phenotypes. As epigenetic marks may distinguish individuals most at risk of later disease at early age, it will enable early intervention strategies to reduce such risks. To achieve this goal further, well designed experimental and human studies are needed.
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Affiliation(s)
- Susanne Krauss-Etschmann
- />Comprehensive Pneumology Center, Helmholtz Center Munich and Children’s Hospital of Ludwig-Maximilians University, Max-Lebsche-Platz 31, 81377 Munich, Germany
- />Priority Area Asthma & Allergy, Leibniz Center for Medicine and Biosciences, Research Center Borstel and Christian Albrechts University Kiel, Airway Research Center North, Member of the German Center for Lung Research, Parkallee 1-40, Borstel, Germany
| | - Karolin F Meyer
- />Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, The Netherlands
- />University of Groningen, GRIAC Research Institute, University Medical Center Groningen, Hanzeplein 1, Groningen, The Netherlands
| | - Stefan Dehmel
- />Comprehensive Pneumology Center, Helmholtz Center Munich and Children’s Hospital of Ludwig-Maximilians University, Max-Lebsche-Platz 31, 81377 Munich, Germany
| | - Machteld N Hylkema
- />Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, The Netherlands
- />University of Groningen, GRIAC Research Institute, University Medical Center Groningen, Hanzeplein 1, Groningen, The Netherlands
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Winans B, Nagari A, Chae M, Post CM, Ko CI, Puga A, Kraus WL, Lawrence BP. Linking the aryl hydrocarbon receptor with altered DNA methylation patterns and developmentally induced aberrant antiviral CD8+ T cell responses. THE JOURNAL OF IMMUNOLOGY 2015; 194:4446-57. [PMID: 25810390 DOI: 10.4049/jimmunol.1402044] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 02/24/2015] [Indexed: 01/14/2023]
Abstract
Successfully fighting infection requires a properly tuned immune system. Recent epidemiological studies link exposure to pollutants that bind the aryl hydrocarbon receptor (AHR) during development with poorer immune responses later in life. Yet, how developmental triggering of AHR durably alters immune cell function remains unknown. Using a mouse model, we show that developmental activation of AHR leads to long-lasting reduction in the response of CD8(+) T cells during influenza virus infection, cells critical for resolving primary infection. Combining genome-wide approaches, we demonstrate that developmental activation alters DNA methylation and gene expression patterns in isolated CD8(+) T cells prior to and during infection. Altered transcriptional profiles in CD8(+) T cells from developmentally exposed mice reflect changes in pathways involved in proliferation and immunoregulation, with an overall pattern that bears hallmarks of T cell exhaustion. Developmental exposure also changed DNA methylation across the genome, but differences were most pronounced following infection, where we observed inverse correlation between promoter methylation and gene expression. This points to altered regulation of DNA methylation as one mechanism by which AHR causes durable changes in T cell function. Discovering that distinct gene sets and pathways were differentially changed in developmentally exposed mice prior to and after infection further reveals that the process of CD8(+) T cell activation is rendered fundamentally different by early life AHR signaling. These findings reveal a novel role for AHR in the developing immune system: regulating DNA methylation and gene expression as T cells respond to infection later in life.
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Affiliation(s)
- Bethany Winans
- Department of Environmental Medicine and Environmental Health Science Center, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642
| | - Anusha Nagari
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences and Division of Basic Reproductive Biology Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX 75390; and
| | - Minho Chae
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences and Division of Basic Reproductive Biology Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX 75390; and
| | - Christina M Post
- Department of Environmental Medicine and Environmental Health Science Center, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642
| | - Chia-I Ko
- Department of Environmental Health and Center for Environmental Genetics, University of Cincinnati College of Medicine, Cincinnati, OH 45267
| | - Alvaro Puga
- Department of Environmental Health and Center for Environmental Genetics, University of Cincinnati College of Medicine, Cincinnati, OH 45267
| | - W Lee Kraus
- Laboratory of Signaling and Gene Regulation, Cecil H. and Ida Green Center for Reproductive Biology Sciences and Division of Basic Reproductive Biology Research, Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center, Dallas, TX 75390; and
| | - B Paige Lawrence
- Department of Environmental Medicine and Environmental Health Science Center, University of Rochester School of Medicine and Dentistry, Rochester, NY 14642;
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Esparza-Gordillo J, Matanovic A, Marenholz I, Bauerfeind A, Rohde K, Nemat K, Lee-Kirsch MA, Nordenskjöld M, Winge MCG, Keil T, Krüger R, Lau S, Beyer K, Kalb B, Niggemann B, Hübner N, Cordell HJ, Bradley M, Lee YA. Maternal filaggrin mutations increase the risk of atopic dermatitis in children: an effect independent of mutation inheritance. PLoS Genet 2015; 11:e1005076. [PMID: 25757221 PMCID: PMC4355615 DOI: 10.1371/journal.pgen.1005076] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 02/16/2015] [Indexed: 12/31/2022] Open
Abstract
Epidemiological studies suggest that allergy risk is preferentially transmitted through mothers. This can be due to genomic imprinting, where the phenotype effect of an allele depends on its parental origin, or due to maternal effects reflecting the maternal genome's influence on the child during prenatal development. Loss-of-function mutations in the filaggrin gene (FLG) cause skin barrier deficiency and strongly predispose to atopic dermatitis (AD). We investigated the 4 most prevalent European FLG mutations (c.2282del4, p.R501X, p.R2447X, and p.S3247X) in two samples including 759 and 450 AD families. We used the multinomial and maximum-likelihood approach implemented in the PREMIM/EMIM tool to model parent-of-origin effects. Beyond the known role of FLG inheritance in AD (R1meta-analysis = 2.4, P = 1.0 x 10−36), we observed a strong maternal FLG genotype effect that was consistent in both independent family sets and for all 4 mutations analysed. Overall, children of FLG-carrier mothers had a 1.5-fold increased AD risk (S1 = 1.50, Pmeta-analysis = 8.4 x 10−8). Our data point to two independent and additive effects of FLG mutations: i) carrying a mutation and ii) having a mutation carrier mother. The maternal genotype effect was independent of mutation inheritance and can be seen as a non-genetic transmission of a genetic effect. The FLG maternal effect was observed only when mothers had allergic sensitization (elevated allergen-specific IgE antibody plasma levels), suggesting that FLG mutation-induced systemic immune responses in the mother may influence AD risk in the child. Notably, the maternal effect reported here was stronger than most common genetic risk factors for AD recently identified through genome-wide association studies (GWAS). Our study highlights the power of family-based studies in the identification of new etiological mechanisms and reveals, for the first time, a direct influence of the maternal genotype on the offspring’s susceptibility to a common human disease. Most human diseases are caused by a combination of multiple environmental and genetic influences. The widely used case/control approach aims to identify disease risk genes by comparing the genetic constitution of affected and healthy individuals. Although successful, this approach ignores additional mechanisms influencing disease risk. Here, we studied mutations in the filaggrin gene (FLG), which are strong risk factors for atopic dermatitis (AD) and allergies, in a large number of families with AD. We found that FLG mutations in the mother, not the father, increased the AD risk of the children, even if the child did not inherit the mutation. Thus, our study revealed, for the first time, a direct influence of a maternal mutation on the child’s risk for a common disease. The maternal FLG effect was only found when the mothers were allergic, and was absent in families of non-allergic mothers. This finding suggests that FLG-induced changes in the maternal immune response shape the child’s immune system during pregnancy and increase the child’s risk for AD. Our study indicates that maternal FLG mutations act as strong environmental risk factors for the child and highlights the potential of family-based studies in uncovering novel disease mechanisms in medical genetics.
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Affiliation(s)
- Jorge Esparza-Gordillo
- Max-Delbrück-Centrum (MDC) for Molecular Medicine, Berlin, Germany
- Clinic for Pediatric Allergy, Experimental and Clinical Research Center, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Anja Matanovic
- Max-Delbrück-Centrum (MDC) for Molecular Medicine, Berlin, Germany
- Clinic for Pediatric Allergy, Experimental and Clinical Research Center, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Ingo Marenholz
- Max-Delbrück-Centrum (MDC) for Molecular Medicine, Berlin, Germany
- Clinic for Pediatric Allergy, Experimental and Clinical Research Center, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Anja Bauerfeind
- Max-Delbrück-Centrum (MDC) for Molecular Medicine, Berlin, Germany
| | - Klaus Rohde
- Max-Delbrück-Centrum (MDC) for Molecular Medicine, Berlin, Germany
| | - Katja Nemat
- Klinik fur Kinder- und Jugendmedizin, Technical University Dresden, Dresden, Germany
| | - Min-Ae Lee-Kirsch
- Klinik fur Kinder- und Jugendmedizin, Technical University Dresden, Dresden, Germany
| | - Magnus Nordenskjöld
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Marten C. G. Winge
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Thomas Keil
- Institute for Social Medicine, Epidemiology and Health Economics, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Renate Krüger
- Pediatric Pneumology and Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Susanne Lau
- Pediatric Pneumology and Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Kirsten Beyer
- Pediatric Pneumology and Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Birgit Kalb
- Pediatric Pneumology and Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Bodo Niggemann
- Pediatric Pneumology and Immunology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Norbert Hübner
- Max-Delbrück-Centrum (MDC) for Molecular Medicine, Berlin, Germany
| | - Heather J. Cordell
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Maria Bradley
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Dermatology Unit, Department of Medicine, Solna Karolinska University Hospital, Stockholm, Solna, Sweden
| | - Young-Ae Lee
- Max-Delbrück-Centrum (MDC) for Molecular Medicine, Berlin, Germany
- Clinic for Pediatric Allergy, Experimental and Clinical Research Center, Charité Universitätsmedizin Berlin, Berlin, Germany
- * E-mail:
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Downey J, Gour N, Wills-Karp M. Mechanisms of Experimental Mouse Models of Airway Hyperresponsiveness. Mucosal Immunol 2015. [DOI: 10.1016/b978-0-12-415847-4.00093-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wark PAB, Murphy V, Mattes J. The interaction between mother and fetus and the development of allergic asthma. Expert Rev Respir Med 2014; 8:57-66. [PMID: 24409981 DOI: 10.1586/17476348.2014.848795] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The rising prevalence of asthma and atopic disease in industrialized countries in the last 50 years has raised important questions about how and why the disease develops in susceptible populations. Most asthma begins in childhood in association with allergic sensitization and the development of a TH2 phenotype. It is recognized that asthma arises in the context of a complex interaction between genetic factors and the evolving immune system of the infant and the environment to which it is exposed, which now includes its in utero exposure. Early life exposures that lead to allergen sensitization and airway damage, especially in the form of viral respiratory tract infections, may lead to disease induction that commence the process that leads in some to asthma. Asthma models and early life observations suggest that repeated exposure to allergens and viral infection perpetuate a state of chronic airway inflammation leading to a maladaptive innate immune response that fails to resolve, characterized by chronic airway inflammation, airway remodeling and airway hyperresponsiveness. This article will concentrate on the development of asthma in the context of early life and maternal influences, including the effect of asthma on both the fetus and the mother.
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Affiliation(s)
- Peter A B Wark
- Hunter Medical Research Institute and The University of Newcastle, Priority Research Centre for Asthma and Respiratory Diseases, Newcastle, New South Wales, Australia
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45
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Hong X, Wang X. Epigenetics and development of food allergy (FA) in early childhood. Curr Allergy Asthma Rep 2014; 14:460. [PMID: 25096861 DOI: 10.1007/s11882-014-0460-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review aims to highlight the latest advance on epigenetics in the development of food allergy (FA) and to offer future perspectives. FA, a condition caused by an immunoglobulin (Ig) E-mediated hypersensitivity reaction to food, has emerged as a major clinical and public health problem worldwide in light of its increasing prevalence, potential fatality, and significant medical and economic impact. Current evidence supports that epigenetic mechanisms are involved in immune regulation and that the epigenome may represent a key "missing piece" of the etiological puzzle for FA. There are a growing number of population-based epigenetic studies on allergy-related phenotypes, mostly focused on DNA methylation. Previous studies mostly applied candidate-gene approaches and have demonstrated that epigenetic marks are associated with multiple allergic diseases and/or with early-life exposures relevant to allergy development (such as early-life smoking exposure, air pollution, farming environment, and dietary fat). Rapid technological advancements have made unbiased genome-wide DNA methylation studies highly feasible, although there are substantial challenge in study design, data analyses, and interpretation of findings. In conclusion, epigenetics represents both an important knowledge gap and a promising research area for FA. Due to the early onset of FA, epigenetic studies of FA in prospective birth cohorts have the potential to better understand gene-environment interactions and underlying biological mechanisms in FA during critical developmental windows (preconception, in utero, and early childhood) and may lead to new paradigms in the diagnosis, prevention, and management of FA and provide novel targets for future drug discovery and therapies for FA.
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Affiliation(s)
- Xiumei Hong
- Center on the Early Life Origins of Disease, Department of Population, Family and Reproductive Health, Johns Hopkins University Bloomberg School of Public Health, 615 N. Wolfe Street, E4132, Baltimore, MD, 21205-2179, USA
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46
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Influences of the microbiome on the early origins of allergic asthma. Ann Am Thorac Soc 2014; 10 Suppl:S165-9. [PMID: 24313768 DOI: 10.1513/annalsats.201305-118aw] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
During and immediately after birth, neonates are exposed to an environment laden with bacteria, a stark contrast to the sterile environment of the womb. Over the ensuing weeks and months, environmental microbial communities colonize their new host, and subsequent host-microbial cross-talk provides key developmental signals for the host's immune system. Emerging data from epidemiological and cellular research studies suggest that the nature of this cross-talk might be an underlying factor for the development, maintenance, and exacerbation of chronic lung diseases, such as asthma and chronic obstructive pulmonary disease. This review describes recent findings concerning the bacterial microbiota in the airways and places these data within the context of epidemiological and experimental studies that allude to the functional significance of host-microbial cross-talk in pulmonary inflammation.
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47
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Neonatal immunology: responses to pathogenic microorganisms and epigenetics reveal an "immunodiverse" developmental state. Immunol Res 2014; 57:246-57. [PMID: 24214026 DOI: 10.1007/s12026-013-8439-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Neonatal animals have heightened susceptibility to infectious agents and are at increased risk for the development of allergic diseases, such as asthma. Experimental studies using animal models have been quite useful for beginning to identify the cellular and molecular mechanisms underlying these sensitivities. In particular, results from murine neonatal models indicate that developmental regulation of multiple immune cell types contributes to the typically poor responses of neonates to pathogenic microorganisms. Surprisingly, however, animal studies have also revealed that responses at mucosal surfaces in early life may be protective against primary or secondary disease. Our understanding of the molecular events underlying these processes is less well developed. Emerging evidence indicates that the functional properties of neonatal immune cells and the subsequent maturation of the immune system in ontogeny may be regulated by epigenetic phenomena. Here, we review recent findings from our group and others describing cellular responses to infection and developmentally regulated epigenetic processes in the newborn.
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Gaurav R, Agrawal DK. Clinical view on the importance of dendritic cells in asthma. Expert Rev Clin Immunol 2014; 9:899-919. [PMID: 24128155 DOI: 10.1586/1744666x.2013.837260] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Allergic asthma is characterized by airway hyperresponsiveness and inflammation and may lead to airway remodeling in uncontrolled cases. Genetic predisposition to an atopic phenotype plays a major component in the pathophysiology of asthma. However, with tremendous role of epigenetic factors and environmental stimuli in precipitating an immune response, the underlying pathophysiological mechanisms are complicated. Dendritic cells are principal antigen-presenting cells and initiators of the immune response in allergic asthma. Their phenotype, guided by multiple factors may dictate the immune reaction to an allergic or tolerogenic response. Involvement of the local cytokine milieu, microbiome and interplay between immune cells add dimension to the fate of immune response. In addition to allergen exposure, these factors modulate DC phenotype and function. In this article, integration of many factors and pathways associated with the recruitment and activation of DCs in the pathophysiology of allergic asthma is presented in a clinical and translational manner.
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Affiliation(s)
- Rohit Gaurav
- Department of Biomedical Sciences and Center for Clinical and Translational Science, Creighton University School of Medicine, CRISS II Room 510, 2500 California Plaza Omaha, NE 68178, USA
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Abdala-Valencia H, Berdnikovs S, Soveg FW, Cook-Mills JM. α-Tocopherol supplementation of allergic female mice inhibits development of CD11c+CD11b+ dendritic cells in utero and allergic inflammation in neonates. Am J Physiol Lung Cell Mol Physiol 2014; 307:L482-96. [PMID: 25015974 DOI: 10.1152/ajplung.00132.2014] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
α-Tocopherol blocks responses to allergen challenge in allergic adult mice, but it is not known whether α-tocopherol regulates the development of allergic disease. Development of allergic disease often occurs early in life. In clinical studies and animal models, offspring of allergic mothers have increased responsiveness to allergen challenge. Therefore, we determined whether α-tocopherol blocked development of allergic responses in offspring of allergic female mice. Allergic female mice were supplemented with α-tocopherol starting at mating. The pups from allergic mothers developed allergic lung responses, whereas pups from saline-treated mothers did not respond to the allergen challenge, and α-tocopherol supplementation of allergic female mice resulted in a dose-dependent reduction in eosinophils in the pup bronchoalveolar lavage and lungs after allergen challenge. There was also a reduction in pup lung CD11b(+) dendritic cell subsets that are critical to development of allergic responses, but there was no change in several CD11b(-) dendritic cell subsets. Furthermore, maternal supplementation with α-tocopherol reduced the number of fetal liver CD11b(+) dendritic cells in utero. In the pups, there was reduced allergen-induced lung mRNA expression of IL-4, IL-33, TSLP, CCL11, and CCL24. Cross-fostering pups at the time of birth demonstrated that α-tocopherol had a regulatory function in utero. In conclusion, maternal supplementation with α-tocopherol reduced fetal development of subsets of dendritic cells that are critical for allergic responses and reduced development of allergic responses in pups from allergic mothers. These results have implications for supplementation of allergic mothers with α-tocopherol.
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Affiliation(s)
- Hiam Abdala-Valencia
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Sergejs Berdnikovs
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Frank W Soveg
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Joan M Cook-Mills
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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50
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de Planell-Saguer M, Lovinsky-Desir S, Miller RL. Epigenetic regulation: the interface between prenatal and early-life exposure and asthma susceptibility. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2014; 55:231-43. [PMID: 24323745 PMCID: PMC4148423 DOI: 10.1002/em.21836] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 11/18/2013] [Accepted: 11/20/2013] [Indexed: 05/10/2023]
Abstract
Asthma is a complex disease with genetic and environmental influences and emerging evidence suggests that epigenetic regulation is also a major contributor. Here, we focus on the developing paradigm that epigenetic dysregulation in asthma and allergy may start as early as in utero following several environmental exposures. We summarize the pathways important to the allergic immune response that are epigenetically regulated, the key environmental exposures associated with epigenetic changes in asthma genes, and newly identified epigenetic biomarkers that have been linked to clinical asthma. We conclude with a brief discussion about the potential to apply newly developing technologies in epigenetics to the diagnosis and treatment of asthma and allergy. The inherent plasticity of epigenetic regulation following environmental exposures offers opportunities for prevention using environmental remediation, measuring novel biomarkers for early identification of those at risk, and applying advances in pharmaco-epigenetics to tailor medical therapies that maximize efficacy of treatment. 'Precision Medicine' in asthma and allergy is arriving. As the field advances this may involve an individually tailored approach to the prevention, early detection, and treatment of disease based on the knowledge of an individual's epigenetic profile.
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Affiliation(s)
- Mariangels de Planell-Saguer
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
| | - Stephanie Lovinsky-Desir
- Division of Pediatric Pulmonary, Department of Pediatrics, Columbia University College of Physicians and Surgeons, New York, New York
| | - Rachel L. Miller
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Columbia University College of Physicians and Surgeons, New York, New York
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, Columbia University, College of Physicians and Surgeons, New York, New York
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, College of Physicians and Surgeons, New York, New York
- Correspondence to: Rachel L. Miller, Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, Columbia University College of Physicians and Surgeons, PH8E-101B; 630 West 168th Street, New York, NY 10032, USA.
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