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Gorzkiewicz M, Łoś-Rycharska E, Gawryjołek J, Gołębiewski M, Krogulska A, Grzybowski T. The methylation profile of IL4, IL5, IL10, IFNG and FOXP3 associated with environmental exposures differed between Polish infants with the food allergy and/or atopic dermatitis and without the disease. Front Immunol 2023; 14:1209190. [PMID: 37520545 PMCID: PMC10373304 DOI: 10.3389/fimmu.2023.1209190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 06/29/2023] [Indexed: 08/01/2023] Open
Abstract
Objectives Epigenetic dynamics has been indicated to play a role in allergy development. The environmental stimuli have been shown to influence the methylation processes. This study investigated the differences in CpGs methylation rate of immune-attached genes between healthy and allergic infants. The research was aimed at finding evidence for the impact of environmental factors on methylation-based regulation of immunological processes in early childhood. Methods The analysis of methylation level of CpGs in the IL4, IL5, IL10, IFNG and FOXP3 genes was performed using high resolution melt real time PCR technology. DNA was isolated from whole blood of Polish healthy and allergic infants, with food allergy and/or atopic dermatitis, aged under six months. Results The significantly lower methylation level of FOXP3 among allergic infants compared to healthy ones was reported. Additional differences in methylation rates were found, when combining with environmental factors. In different studied groups, negative correlations between age and the IL10 and FOXP3 methylation were detected, and positive - in the case of IL4. Among infants with different allergy symptoms, the decrease in methylation level of IFNG, IL10, IL4 and FOXP3 associated with passive smoke exposure was observed. Complications during pregnancy were linked to different pattern of the IFNG, IL5, IL4 and IL10 methylation depending on allergy status. The IFNG and IL5 methylation rates were higher among exclusively breastfed infants with atopic dermatitis compared to the non-breastfed. A decrease in the IFNG methylation was noted among allergic patients fed exclusively with milk formula. In different study groups, a negative correlation between IFNG, IL5 methylation and maternal BMI or IL5 methylation and weight was noted. Some positive correlations between methylation rate of IL10 and child's weight were found. A higher methylation of IL4 was positively correlated with the number of family members with allergy. Conclusion The FOXP3 methylation in allergic infants was lower than in the healthy ones. The methylation profile of IL4, IL5, IL10, IFNG and FOXP3 associated with environmental exposures differed between the studied groups. The results offer insights into epigenetic regulation of immunological response in early childhood.
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Affiliation(s)
- Marta Gorzkiewicz
- Department of Forensic Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Toruń, Poland
| | - Ewa Łoś-Rycharska
- Department of Pediatrics, Allergology and Gastroenterology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Toruń, Poland
| | - Julia Gawryjołek
- Department of Pediatrics, Allergology and Gastroenterology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Toruń, Poland
| | - Marcin Gołębiewski
- Department of Plant Physiology and Biotechnology, Nicolaus Copernicus University in Toruń, Toruń, Poland
- Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University in Toruń, Toruń, Poland
| | - Aneta Krogulska
- Department of Pediatrics, Allergology and Gastroenterology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Toruń, Poland
| | - Tomasz Grzybowski
- Department of Forensic Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Toruń, Poland
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Cañas JA, Núñez R, Cruz-Amaya A, Gómez F, Torres MJ, Palomares F, Mayorga C. Epigenetics in Food Allergy and Immunomodulation. Nutrients 2021; 13:4345. [PMID: 34959895 PMCID: PMC8708211 DOI: 10.3390/nu13124345] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 11/27/2021] [Accepted: 11/29/2021] [Indexed: 12/30/2022] Open
Abstract
Food allergy (FA) is an increasing problem worldwide and, over recent years, its prevalence is rising in developed countries. Nowadays, the immunological and cellular processes that occur in the allergic reactions are not fully understood, which hampers the development of in vitro diagnostic tools and further treatment options. Moreover, allergic diseases could be reinforced by environmental exposure and genetic modifications. Gene expression can be controlled by different epigenetic mechanisms like DNA methylation, histone modifications, and microRNAs. In addition, several environmental factors such as dietary components (vitamin D, butyrate, folic acid) are able to regulate this epigenetic mechanism. All these factors produce modifications in immune genes that could alter the development and function of immune cells, and therefore the etiology of the disease. Furthermore, these epigenetic mechanisms have also an influence on immunomodulation, which could explain sustained responsiveness or unresponsiveness during immunotherapy due to epigenetic modifications in key genes that induce tolerance in several FA. Thus, in this review we focus on the different epigenetic mechanisms that occur in FA and on the influence of several dietary components in these gene modifications.
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Affiliation(s)
- José A. Cañas
- Allergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009 Málaga, Spain; (J.A.C.); (R.N.); (A.C.-A.); (F.P.)
- Andalusian Centre for Nanomedicine and Biotechnology-BIONAND, 29590 Málaga, Spain;
| | - Rafael Núñez
- Allergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009 Málaga, Spain; (J.A.C.); (R.N.); (A.C.-A.); (F.P.)
| | - Anyith Cruz-Amaya
- Allergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009 Málaga, Spain; (J.A.C.); (R.N.); (A.C.-A.); (F.P.)
- Andalusian Centre for Nanomedicine and Biotechnology-BIONAND, 29590 Málaga, Spain;
| | - Francisca Gómez
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, 29009 Málaga, Spain;
| | - María J. Torres
- Andalusian Centre for Nanomedicine and Biotechnology-BIONAND, 29590 Málaga, Spain;
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, 29009 Málaga, Spain;
- Medicine Department, Universidad de Málaga-UMA, 29010 Málaga, Spain
| | - Francisca Palomares
- Allergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009 Málaga, Spain; (J.A.C.); (R.N.); (A.C.-A.); (F.P.)
| | - Cristobalina Mayorga
- Allergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, 29009 Málaga, Spain; (J.A.C.); (R.N.); (A.C.-A.); (F.P.)
- Andalusian Centre for Nanomedicine and Biotechnology-BIONAND, 29590 Málaga, Spain;
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, 29009 Málaga, Spain;
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Aptamer-Based Fluorescent Biosensor for the Rapid and Sensitive Detection of Allergens in Food Matrices. Foods 2021; 10:foods10112598. [PMID: 34828878 PMCID: PMC8623274 DOI: 10.3390/foods10112598] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/20/2021] [Accepted: 10/22/2021] [Indexed: 02/07/2023] Open
Abstract
Food allergies have seriously affected the life quality of some people and even endangered their lives. At present, there is still no effective cure for food allergies. Avoiding the intake of allergenic food is still the most effective way to prevent allergic diseases. Therefore, it is necessary to develop rapid, accurate, sensitive, and reliable analysis methods to detect food allergens from different sources. Aptamers are oligonucleotide sequences that can bind to a variety of targets with high specificity and selectivity, and they are often combined with different transduction technologies, thereby constructing various types of aptamer sensors. In recent years, with the development of technology and the application of new materials, the sensitivity, portability, and cost of fluorescence sensing technology have been greatly improved. Therefore, aptamer-based fluorescence sensing technology has been widely developed and applied in the specific recognition of food allergens. In this paper, the classification of major allergens and their characteristics in animal and plant foods were comprehensively reviewed, and the preparation principles and practical applications of aptamer-based fluorescence biosensors are summarized. In addition, we hope that this article can provide some strategies for the rapid and sensitive detection of allergens in food matrices.
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Chang C, Wu H, Lu Q. The Epigenetics of Food Allergy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1253:141-152. [PMID: 32445094 DOI: 10.1007/978-981-15-3449-2_5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Christopher Chang
- Division of Pediatric Immunology and Allergy, Joe DiMaggio Children's Hospital, Hollywood, FL, 33021, USA.
- Division of Rheumatology, Allergy and Clinical Immunology, University of California Davis, Davis, CA, 95616, USA.
| | - Haijing Wu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qianjin Lu
- Department of Dermatology, Hunan Key Laboratory of Medical Epigenomics, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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Lee KH, Song Y, O'Sullivan M, Pereira G, Loh R, Zhang GB. The Implications of DNA Methylation on Food Allergy. Int Arch Allergy Immunol 2017; 173:183-192. [PMID: 28848217 DOI: 10.1159/000479513] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Food allergy is a major clinical and public health concern worldwide. The risk factors are well defined, however, the mechanisms by which they affect immune development remain largely unknown, and unfortunately the effective treatment or prevention of food allergy is still being researched. Recent studies show that the genes that are critical for the development of food allergy are regulated through DNA methylation. Environmental factors can affect host DNA methylation status and subsequently predispose people to food allergy. DNA methylation is therefore an important mediator of gene-environment interactions in food allergy and key to understanding the mechanisms underlying the allergic development. Indeed, the modification and identification of the methylation levels of specific genetic loci have gained increasing attention for therapeutic and diagnostic application in combating food allergy. In this review, we summarize and discuss the recent developments of DNA methylation in food allergy, including the pathogenesis, therapy, and diagnosis. This review will also summarize and discuss the environmental factors that affect DNA methylation levels in food allergy.
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Affiliation(s)
- Khui Hung Lee
- School of Public Health, Curtin University of Technology, Bentley WA, Australia
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[Immunological background and pathomechanisms of food allergies]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2017; 59:723-31. [PMID: 27177897 DOI: 10.1007/s00103-016-2346-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Recent advances in immunology have greatly improved our understanding of the pathomechanisms of food allergies. Food allergies are caused and maintained by complex interactions of the innate and adaptive immune system involving antigen-presenting cells (APC), T cells, group 2 innate lymphoid cells (ILC2), epithelial cells (EC) and effectors cells. Additionally, epigenetic factors, the intestinal microbiome and nutritional factors modulating the gastrointestinal lymphatic tissue probably have a significant impact on allergy development. However, why certain individuals develop tolerance while others mount allergic responses, the factors defining the allergenicity of food proteins, as well as the immunological mechanisms triggering allergy development have yet to be analyzed in detail.
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Paparo L, Nocerino R, Cosenza L, Aitoro R, D'Argenio V, Del Monaco V, Di Scala C, Amoroso A, Di Costanzo M, Salvatore F, Berni Canani R. Epigenetic features of FoxP3 in children with cow's milk allergy. Clin Epigenetics 2016; 8:86. [PMID: 27525046 PMCID: PMC4981981 DOI: 10.1186/s13148-016-0252-z] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 08/02/2016] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND DNA methylation of the Th1 and Th2 cytokine genes is altered during cow's milk allergy (CMA). Forkhead box transcription factor 3 (FoxP3) is essential for the development and function of regulatory T cells (Tregs) and is involved in oral tolerance acquisition. We assessed whether tolerance acquisition in children with IgE-mediated CMA is associated with DNA demethylation of the Treg-specific demethylated region (TSDR) of FoxP3. RESULTS Forty children (aged 3-18 months) were enrolled: 10 children with active IgE-mediated CMA (group 1), 10 children who outgrew CMA after dietary treatment with an extensively hydrolyzed casein formula containing the probiotic Lactobacillus rhamnosus GG (group 2), 10 children who outgrew CMA after treatment with other formulas (group 3), and 10 healthy controls (group 4). FoxP3 TSDR demethylation and expression were measured in mononuclear cells purified from peripheral blood of the four groups of children. FoxP3 TSDR demethylation was significantly lower in children with active IgE-mediated CMA than in either children who outgrew CMA or in healthy children. Formula selection influenced the FoxP3 TSDR demethylation profile. The FoxP3 TSDR demethylation rate and expression level were correlated. CONCLUSIONS Tolerance acquisition in children with IgE-mediated CMA involves epigenetic regulation of the FoxP3 gene. This feature could be a new target for preventive and therapeutic strategies against CMA.
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Affiliation(s)
- Lorella Paparo
- Department of Translational Medical Science, University of Naples "Federico II", Via S. Pansini, 5 80131 Naples, Italy
| | - Rita Nocerino
- Department of Translational Medical Science, University of Naples "Federico II", Via S. Pansini, 5 80131 Naples, Italy
| | - Linda Cosenza
- Department of Translational Medical Science, University of Naples "Federico II", Via S. Pansini, 5 80131 Naples, Italy
| | - Rosita Aitoro
- Department of Translational Medical Science, University of Naples "Federico II", Via S. Pansini, 5 80131 Naples, Italy
| | - Valeria D'Argenio
- CEINGE-Biotecnologie Avanzate s.c.ar.l, Via Gaetano Salvatore 486, 80131 Naples, Italy ; Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy
| | - Valentina Del Monaco
- CEINGE-Biotecnologie Avanzate s.c.ar.l, Via Gaetano Salvatore 486, 80131 Naples, Italy ; Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy
| | - Carmen Di Scala
- Department of Translational Medical Science, University of Naples "Federico II", Via S. Pansini, 5 80131 Naples, Italy
| | - Antonio Amoroso
- Department of Translational Medical Science, University of Naples "Federico II", Via S. Pansini, 5 80131 Naples, Italy
| | - Margherita Di Costanzo
- Department of Translational Medical Science, University of Naples "Federico II", Via S. Pansini, 5 80131 Naples, Italy
| | - Francesco Salvatore
- CEINGE-Biotecnologie Avanzate s.c.ar.l, Via Gaetano Salvatore 486, 80131 Naples, Italy ; Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Via S. Pansini 5, 80131 Naples, Italy ; IRCCS-Fondazione SDN, Via E. Gianturco 113, 80143 Naples, Italy
| | - Roberto Berni Canani
- Department of Translational Medical Science, University of Naples "Federico II", Via S. Pansini, 5 80131 Naples, Italy ; CEINGE-Biotecnologie Avanzate s.c.ar.l, Via Gaetano Salvatore 486, 80131 Naples, Italy ; European Laboratory for the Investigation of Food-Induced Diseases, University of Naples "Federico II", Via S. Pansini 5, 80131 Naples, Italy
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