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Soria-Chacartegui P, Navares-Gómez M, Molina-Jiménez F, Laserna-Mendieta EJ, Arias-González L, Majano P, Casabona S, Lucendo AJ, Abad-Santos F, Santander C, Zubiaur P. Impact of STAT6 Variants on the Response to Proton Pump Inhibitors and Comorbidities in Patients with Eosinophilic Esophagitis. Int J Mol Sci 2024; 25:3685. [PMID: 38612496 PMCID: PMC11011338 DOI: 10.3390/ijms25073685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/20/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
Proton pump inhibitors (PPIs) are the first-line drug for eosinophilic esophagitis (EoE), although it is estimated that there is a lack of histological remission in 50% of patients. This research aimed to identify pharmacogenetic biomarkers predictive of PPI effectiveness and to study their association with disease features. Peak eosinophil count (PEC) and the endoscopic reference score (EREFS) were determined before and after an eight-week PPI course in 28 EoE patients. The impact of the signal transducer and activator of transcription 6 (STAT6), CYP2C19, CYP3A4, CYP3A5, and ABCB1 genetic variations on baseline PEC and EREFS, their reduction and histological response, and on EoE symptoms and comorbidities was analyzed. PEC reduction was higher in omeprazole-treated patients (92.5%) compared to other PPIs (57.9%, p = 0.003). STAT6 rs12368672 (g.18453G>C) G/G genotype showed higher baseline PEC values compared to G/C and C/C genotypes (83.2 vs. 52.9, p = 0.027). EREFS reduction in STAT6 rs12368672 G/G and G/C genotypes was higher than in the C/C genotype (36.7% vs. -75.0% p = 0.011). However, significance was lost after Bonferroni correction. Heartburn incidence was higher in STAT6 rs167769 (g.27148G>A) G/G patients compared to G/A (54.55% vs. 11.77%, p = 0.030). STAT6 rs12368672G>C and rs167769G>A variants might have a relevant impact on EoE status and PPI response. Further research is warranted to clarify the clinical relevance of these variants.
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Affiliation(s)
- Paula Soria-Chacartegui
- Clinical Pharmacology Department, Hospital Universitario de La Princesa, Faculty of Medicine, Universidad Autónoma de Madrid (UAM), 28006 Madrid, Spain
- Instituto de Investigación Sanitaria La Princesa (IIS-IP), 28006 Madrid, Spain (A.J.L.)
| | - Marcos Navares-Gómez
- Clinical Pharmacology Department, Hospital Universitario de La Princesa, Faculty of Medicine, Universidad Autónoma de Madrid (UAM), 28006 Madrid, Spain
- Instituto de Investigación Sanitaria La Princesa (IIS-IP), 28006 Madrid, Spain (A.J.L.)
| | - Francisca Molina-Jiménez
- Instituto de Investigación Sanitaria La Princesa (IIS-IP), 28006 Madrid, Spain (A.J.L.)
- Gastroenterology Department, Hospital Universitario de La Princesa, Faculty of Medicine, Universidad Autónoma de Madrid (UAM), 28006 Madrid, Spain
| | - Emilio J. Laserna-Mendieta
- Instituto de Investigación Sanitaria La Princesa (IIS-IP), 28006 Madrid, Spain (A.J.L.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Gastroenterology Department, Hospital General de Tomelloso, 13700 Ciudad Real, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
| | - Laura Arias-González
- Instituto de Investigación Sanitaria La Princesa (IIS-IP), 28006 Madrid, Spain (A.J.L.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Gastroenterology Department, Hospital General de Tomelloso, 13700 Ciudad Real, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
| | - Pedro Majano
- Instituto de Investigación Sanitaria La Princesa (IIS-IP), 28006 Madrid, Spain (A.J.L.)
- Gastroenterology Department, Hospital Universitario de La Princesa, Faculty of Medicine, Universidad Autónoma de Madrid (UAM), 28006 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Cellular Biology Department, Faculty of Biology, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Sergio Casabona
- Instituto de Investigación Sanitaria La Princesa (IIS-IP), 28006 Madrid, Spain (A.J.L.)
- Gastroenterology Department, Hospital Universitario de La Princesa, Faculty of Medicine, Universidad Autónoma de Madrid (UAM), 28006 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Alfredo J. Lucendo
- Instituto de Investigación Sanitaria La Princesa (IIS-IP), 28006 Madrid, Spain (A.J.L.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Gastroenterology Department, Hospital General de Tomelloso, 13700 Ciudad Real, Spain
- Instituto de Investigación Sanitaria de Castilla-La Mancha (IDISCAM), 45071 Toledo, Spain
| | - Francisco Abad-Santos
- Clinical Pharmacology Department, Hospital Universitario de La Princesa, Faculty of Medicine, Universidad Autónoma de Madrid (UAM), 28006 Madrid, Spain
- Instituto de Investigación Sanitaria La Princesa (IIS-IP), 28006 Madrid, Spain (A.J.L.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Cecilio Santander
- Instituto de Investigación Sanitaria La Princesa (IIS-IP), 28006 Madrid, Spain (A.J.L.)
- Gastroenterology Department, Hospital Universitario de La Princesa, Faculty of Medicine, Universidad Autónoma de Madrid (UAM), 28006 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Pablo Zubiaur
- Clinical Pharmacology Department, Hospital Universitario de La Princesa, Faculty of Medicine, Universidad Autónoma de Madrid (UAM), 28006 Madrid, Spain
- Instituto de Investigación Sanitaria La Princesa (IIS-IP), 28006 Madrid, Spain (A.J.L.)
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Choi BY, Han M, Kwak JW, Kim TH. Genetics and Epigenetics in Allergic Rhinitis. Genes (Basel) 2021; 12:2004. [PMID: 34946955 PMCID: PMC8700872 DOI: 10.3390/genes12122004] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 12/12/2022] Open
Abstract
The pathogenesis of allergic rhinitis is associated with genetic, environmental, and epigenetic factors. Genotyping of single nucleotide polymorphisms (SNPs) is an advanced technique in the field of molecular genetics that is closely correlated with genome-wide association studies (GWASs) in large population groups with allergic diseases. Many recent studies have paid attention to the role of epigenetics, including alteration of DNA methylation, histone acetylation, and miRNA levels in the pathogenesis of allergic rhinitis. In this review article, genetics and epigenetics of allergic rhinitis, including information regarding functions and significance of previously known and newly-discovered genes, are summarized. Directions for future genetic and epigenetic studies of allergic rhinitis are also proposed.
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Affiliation(s)
| | | | | | - Tae Hoon Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, College of Medicine, Korea University, Seoul 02841, Korea; (B.Y.C.); (M.H.); (J.W.K.)
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Abstract
There has been a substantial increase in the incidence and the prevalence of allergic disorders in the recent decades, which seems to be related to rapid environmental and lifestyle changes, such as higher exposure to factors thought to exert pro-allergic effects but less contact with factors known to be associated with protection against the development of allergies. Pollution is the most remarkable example of the former, while less contact with microorganisms, lower proportion of unprocessed natural products in diet, and others resulting from urbanization and westernization of the lifestyle exemplify the latter. It is strongly believed that the effects of environmental factors on allergy susceptibility and development are mediated by epigenetic mechanisms, i.e. biologically relevant biochemical changes of the chromatin carrying transcriptionally-relevant information but not affecting the nucleotide sequence of the genome. Classical epigenetic mechanisms include DNA methylation and histone modifications, for instance acetylation or methylation. In addition, microRNA controls gene expression at the mRNA level. Such epigenetic mechanisms are involved in crucial regulatory processes in cells playing a pivotal role in allergies. Those include centrally managing cells, such as T lymphocytes, as well as specific structural and effector cells in the affected organs, responsible for the local clinical presentation of allergy, e.g. epithelial or airway smooth muscle cells in asthma. Considering that allergic disorders possess multiple clinical (phenotypes) and mechanistic (endotypes) forms, targeted, stratified treatment strategies based on detailed clinical and molecular diagnostics are required. Since conventional diagnostic or therapeutic approaches do not suffice, this gap could possibly be filled out by epigenetic approaches.
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Elements of Immunoglobulin E Network Associate with Aortic valve Area in Patients with Acquired Aortic Stenosis. Biomedicines 2020; 9:biomedicines9010023. [PMID: 33396395 PMCID: PMC7824289 DOI: 10.3390/biomedicines9010023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/23/2020] [Accepted: 12/26/2020] [Indexed: 12/16/2022] Open
Abstract
Allergic mechanisms are likely involved in atherosclerosis and its clinical presentations, such as coronary artery disease (CAD). It has been previously reported that CAD severity associates with serum levels of immunoglobulin E (IgE), the molecule that, along with its high-affinity receptor (FcԑRI), plays a central role in allergic reactions. Considering multiple pathophysiological similarities between atherosclerosis and acquired aortic (valve) stenosis (AS), we speculated that allergic pathways could also contribute to the AS mechanisms and grading. To validate this hypothesis, we first checked whether total serum IgE levels associate with echocardiographic markers of AS severity. Having found a positive correlation between serum IgE and aortic valve area (AVA), we further speculated that also total IgE-determining genetic polymorphisms in FCER1A, a locus encoding an allergen-biding FcԑRI subunit, are related to acquired AS severity. Indeed, the major allele of rs2251746 polymorphism, known to associate with higher IgE levels, turned out to correlate with larger AVA, a marker of less severe AS. Our findings surprisingly suggest a protective role of IgE pathways against AS progression. IgE-mediated protective mechanisms in AS require further investigations.
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Andiappan AK, Puan KJ, Lee B, Yeow PT, Yusof N, Merid SK, Kumar D, Lum J, Foo S, Koh G, Poidinger M, Zolezzi F, Wang DY, Melén E, Rotzschke O. Inverse association of FCER1A allergy variant in monocytes and plasmacytoid dendritic cells. J Allergy Clin Immunol 2020; 147:1510-1513.e8. [PMID: 33160967 DOI: 10.1016/j.jaci.2020.10.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 10/22/2020] [Accepted: 10/29/2020] [Indexed: 10/23/2022]
Affiliation(s)
- Anand Kumar Andiappan
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Kia Joo Puan
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Bernett Lee
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Poh Tuang Yeow
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Nurhashikin Yusof
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Simon Kebede Merid
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Dilip Kumar
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Josephine Lum
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Shihui Foo
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Geraldine Koh
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Michael Poidinger
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore; Murdoch Children's Research Institute, Victoria, Australia
| | - Francesca Zolezzi
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | | | | | - De Yun Wang
- Department of Otalaryngology, National University of Singapore, Singapore
| | - Erik Melén
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden; Department of Paediatrics, Sachs' Children's Hospital, Stockholm, Sweden; Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Olaf Rotzschke
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore.
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Alashkar Alhamwe B, Meulenbroek LAPM, Veening-Griffioen DH, Wehkamp TMD, Alhamdan F, Miethe S, Harb H, Hogenkamp A, Knippels LMJ, Pogge von Strandmann E, Renz H, Garssen J, van Esch BCAM, Garn H, Potaczek DP, Tiemessen MM. Decreased Histone Acetylation Levels at Th1 and Regulatory Loci after Induction of Food Allergy. Nutrients 2020; 12:E3193. [PMID: 33086571 PMCID: PMC7603208 DOI: 10.3390/nu12103193] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/13/2020] [Accepted: 10/16/2020] [Indexed: 12/12/2022] Open
Abstract
Immunoglobulin E (IgE)-mediated allergy against cow's milk protein fractions such as whey is one of the most common food-related allergic disorders of early childhood. Histone acetylation is an important epigenetic mechanism, shown to be involved in the pathogenesis of allergies. However, its role in food allergy remains unknown. IgE-mediated cow's milk allergy was successfully induced in a mouse model, as demonstrated by acute allergic symptoms, whey-specific IgE in serum, and the activation of mast cells upon a challenge with whey protein. The elicited allergic response coincided with reduced percentages of regulatory T (Treg) and T helper 17 (Th17) cells, matching decreased levels of H3 and/or H4 histone acetylation at pivotal Treg and Th17 loci, an epigenetic status favoring lower gene expression. In addition, histone acetylation levels at the crucial T helper 1 (Th1) loci were decreased, most probably preceding the expected reduction in Th1 cells after inducing an allergic response. No changes were observed for T helper 2 cells. However, increased histone acetylation levels, promoting gene expression, were observed at the signal transducer and activator of transcription 6 (Stat6) gene, a proallergic B cell locus, which was in line with the presence of whey-specific IgE. In conclusion, the observed histone acetylation changes are pathobiologically in line with the successful induction of cow's milk allergy, to which they might have also contributed mechanistically.
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Affiliation(s)
- Bilal Alashkar Alhamwe
- Institute of Laboratory Medicine, the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, 35039 Marburg, Germany; (B.A.A.); (F.A.); (S.M.); (H.H.); (H.R.); (H.G.); (D.P.P.)
- Institute of Tumor Immunology, Clinic for Hematology, Oncology and Immunology, Center for Tumor Biology and Immunology, Philipps University Marburg, 35039 Marburg, Germany;
- College of Pharmacy, International University for Science and Technology (IUST), Daraa 15, Syria
| | - Laura A. P. M. Meulenbroek
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (L.A.P.M.M.); (D.H.V.-G.); (T.M.D.W.); (L.M.J.K.); (J.G.); (B.C.A.M.v.E.)
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CT Utrecht, The Netherlands;
| | - Désirée H. Veening-Griffioen
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (L.A.P.M.M.); (D.H.V.-G.); (T.M.D.W.); (L.M.J.K.); (J.G.); (B.C.A.M.v.E.)
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CT Utrecht, The Netherlands;
| | - Tjalling M. D. Wehkamp
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (L.A.P.M.M.); (D.H.V.-G.); (T.M.D.W.); (L.M.J.K.); (J.G.); (B.C.A.M.v.E.)
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CT Utrecht, The Netherlands;
| | - Fahd Alhamdan
- Institute of Laboratory Medicine, the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, 35039 Marburg, Germany; (B.A.A.); (F.A.); (S.M.); (H.H.); (H.R.); (H.G.); (D.P.P.)
- Translational Inflammation Research Division & Core Facility for Single Cell Multiomics, the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center, Philipps University Marburg, 35039 Marburg, Germany
| | - Sarah Miethe
- Institute of Laboratory Medicine, the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, 35039 Marburg, Germany; (B.A.A.); (F.A.); (S.M.); (H.H.); (H.R.); (H.G.); (D.P.P.)
- Translational Inflammation Research Division & Core Facility for Single Cell Multiomics, the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center, Philipps University Marburg, 35039 Marburg, Germany
| | - Hani Harb
- Institute of Laboratory Medicine, the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, 35039 Marburg, Germany; (B.A.A.); (F.A.); (S.M.); (H.H.); (H.R.); (H.G.); (D.P.P.)
- Division of Immunology, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Astrid Hogenkamp
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CT Utrecht, The Netherlands;
| | - Léon M. J. Knippels
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (L.A.P.M.M.); (D.H.V.-G.); (T.M.D.W.); (L.M.J.K.); (J.G.); (B.C.A.M.v.E.)
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CT Utrecht, The Netherlands;
| | - Elke Pogge von Strandmann
- Institute of Tumor Immunology, Clinic for Hematology, Oncology and Immunology, Center for Tumor Biology and Immunology, Philipps University Marburg, 35039 Marburg, Germany;
| | - Harald Renz
- Institute of Laboratory Medicine, the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, 35039 Marburg, Germany; (B.A.A.); (F.A.); (S.M.); (H.H.); (H.R.); (H.G.); (D.P.P.)
| | - Johan Garssen
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (L.A.P.M.M.); (D.H.V.-G.); (T.M.D.W.); (L.M.J.K.); (J.G.); (B.C.A.M.v.E.)
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CT Utrecht, The Netherlands;
| | - Betty C. A. M. van Esch
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (L.A.P.M.M.); (D.H.V.-G.); (T.M.D.W.); (L.M.J.K.); (J.G.); (B.C.A.M.v.E.)
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CT Utrecht, The Netherlands;
| | - Holger Garn
- Institute of Laboratory Medicine, the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, 35039 Marburg, Germany; (B.A.A.); (F.A.); (S.M.); (H.H.); (H.R.); (H.G.); (D.P.P.)
- Translational Inflammation Research Division & Core Facility for Single Cell Multiomics, the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center, Philipps University Marburg, 35039 Marburg, Germany
| | - Daniel P. Potaczek
- Institute of Laboratory Medicine, the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, 35039 Marburg, Germany; (B.A.A.); (F.A.); (S.M.); (H.H.); (H.R.); (H.G.); (D.P.P.)
- Translational Inflammation Research Division & Core Facility for Single Cell Multiomics, the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center, Philipps University Marburg, 35039 Marburg, Germany
- John Paul II Hospital, 31-202 Krakow, Poland
| | - Machteld M. Tiemessen
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (L.A.P.M.M.); (D.H.V.-G.); (T.M.D.W.); (L.M.J.K.); (J.G.); (B.C.A.M.v.E.)
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CT Utrecht, The Netherlands;
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7
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Potaczek DP, Przytulska-Szczerbik A, Bazan-Socha S, Nastałek M, Wojas-Pelc A, Okumura K, Nishiyama C, Jurczyszyn A, Undas A, Wypasek E. Interaction between functional polymorphisms in FCER1A and TLR2 and the severity of atopic dermatitis. Hum Immunol 2020; 81:709-713. [PMID: 32883546 DOI: 10.1016/j.humimm.2020.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 08/12/2020] [Accepted: 08/12/2020] [Indexed: 11/20/2022]
Abstract
Dendritic cell toll-like receptors (TLRs) and the high-affinity immunoglobulin E (IgE) receptor (FcεRI) may biologically interact with regard to atopic dermatitis (AD) development and, especially, severity. Our aim here was to test if such interaction can be detected on the genetic level. The combined effect of the TLR2 gene (TLR2) rs4696480 and the FcεRI α-chain gene (FCER1A) rs2252226 and rs2251746 polymorphisms on the AD severity as measured by SCORAD was assessed. The FCER1A rs2252226 and TLR2 rs4696480 polymorphisms interacted with regard to SCORAD. Higher SCORAD was observed in patients being the TLR2 rs4696480 major homozygotes and carrying at the same time the FCER1A rs2252226 minor allele, compared to those characterized by (any other of) the remaining combined rs2252226 and rs4696480 genotypes. The observation of the epistatic effect of TLR2 and FCER1A genetic variants on SCORAD is in line with the involvement of the interaction TLRs-FcεRI in the pathophysiology of AD.
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Affiliation(s)
- Daniel P Potaczek
- Institute of Laboratory Medicine and Pathobiochemistry, Universities of Giessen and Marburg Lung Center (UGMLC), German Center for Lung Research (DZL), Philipps University Marburg, Marburg, Germany; Krakow Center for Medical Research and Technology, John Paul II Hospital, Krakow, Poland
| | | | - Stanisława Bazan-Socha
- Department of Internal Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Magdalena Nastałek
- Faculty of Rehabilitation, University of Physical Education in Krakow, Poland
| | - Anna Wojas-Pelc
- Department of Dermatology, Jagiellonian University Medical College, Krakow, Poland
| | - Ko Okumura
- Atopy Research Center, Juntendo University School of Medicine, Tokyo, Japan
| | - Chiharu Nishiyama
- Laboratory of Molecular Biology and Immunology, Department of Biological Science and Technology, Tokyo University of Science, Tokyo, Japan
| | - Artur Jurczyszyn
- Department of Hematology, Jagiellonian University Medical College, Krakow, Poland
| | - Anetta Undas
- Krakow Center for Medical Research and Technology, John Paul II Hospital, Krakow, Poland; Institute of Cardiology, Jagiellonian University Medical College, Krakow, Poland
| | - Ewa Wypasek
- Krakow Center for Medical Research and Technology, John Paul II Hospital, Krakow, Poland; Faculty of Medicine and Health Sciences, Andrzej Frycz Modrzewski Krakow University, Krakow, Poland.
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8
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Ginkel CD, Pettersson ME, Dubois AEJ, Koppelman GH. Association of STAT6 gene variants with food allergy diagnosed by double-blind placebo-controlled food challenges. Allergy 2018; 73:1337-1341. [PMID: 29457221 PMCID: PMC6032865 DOI: 10.1111/all.13432] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2018] [Indexed: 12/25/2022]
Abstract
This study describes the role of two STAT6 gene variants in food allergy using data of patients and their parents who underwent double‐blind placebo‐controlled food challenges (DBPCFCs). After quality control, 369 trios were analysed including 262 children (71.0%) with food allergy. Associations were tested by the Family based association test. The A alleles of both SNPs were associated with food allergy (P = .036 and P = .013 for rs324015 and rs1059513, respectively). Furthermore, these A alleles were associated with peanut allergy, higher sIgE levels to both peanut and cow's milk, more severe symptoms and higher eliciting doses during peanut and cow's milk DBPCFCs (all P < .05). In silico analysis indicates that the identified risk variants increase STAT6 expression which stimulates the differentiation of CD4 + T cells to the Th2 subset. In conclusion, STAT6 variants may be involved in the pathophysiology of food allergy and their role seems to be independent of the allergenic food.
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Affiliation(s)
- C. D. Ginkel
- University Medical Center Groningen Department of Paediatric Pulmonology and Paediatric Allergy GRIAC Research Institute University of Groningen Groningen The Netherlands
| | - M. E. Pettersson
- University Medical Center Groningen Department of Paediatric Pulmonology and Paediatric Allergy GRIAC Research Institute University of Groningen Groningen The Netherlands
| | - A. E. J. Dubois
- University Medical Center Groningen Department of Paediatric Pulmonology and Paediatric Allergy GRIAC Research Institute University of Groningen Groningen The Netherlands
| | - G. H. Koppelman
- University Medical Center Groningen Department of Paediatric Pulmonology and Paediatric Allergy GRIAC Research Institute University of Groningen Groningen The Netherlands
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Sharma V, Nandan A, Sharma AK, Singh H, Bharadwaj M, Sinha DN, Mehrotra R. Signature of genetic associations in oral cancer. Tumour Biol 2017; 39:1010428317725923. [DOI: 10.1177/1010428317725923] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Vishwas Sharma
- Department of Health Research, National Institute of Cancer Prevention and Research (NICPR), Noida, India
| | - Amrita Nandan
- Society for Life Science and Human Health, Allahabad, India
| | - Amitesh Kumar Sharma
- Data Management Laboratory, National Institute of Cancer Prevention and Research (NICPR), Noida, India
- Department of Bioinformatics, Indian Council of Medical Research, New Delhi, India
| | - Harpreet Singh
- Data Management Laboratory, National Institute of Cancer Prevention and Research (NICPR), Noida, India
- Department of Bioinformatics, Indian Council of Medical Research, New Delhi, India
| | - Mausumi Bharadwaj
- Department of Health Research, National Institute of Cancer Prevention and Research (NICPR), Noida, India
- Division of Molecular Genetics & Biochemistry
| | - Dhirendra Narain Sinha
- WHO FCTC Global Knowledge Hub on Smokeless Tobacco, National Institute of Cancer Prevention and Research (NICPR), Noida, India
| | - Ravi Mehrotra
- Department of Health Research, National Institute of Cancer Prevention and Research (NICPR), Noida, India
- Data Management Laboratory, National Institute of Cancer Prevention and Research (NICPR), Noida, India
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10
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Edwards MR, Strong K, Cameron A, Walton RP, Jackson DJ, Johnston SL. Viral infections in allergy and immunology: How allergic inflammation influences viral infections and illness. J Allergy Clin Immunol 2017; 140:909-920. [PMID: 28987220 PMCID: PMC7173222 DOI: 10.1016/j.jaci.2017.07.025] [Citation(s) in RCA: 152] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 07/20/2017] [Accepted: 07/31/2017] [Indexed: 12/20/2022]
Abstract
Viral respiratory tract infections are associated with asthma inception in early life and asthma exacerbations in older children and adults. Although how viruses influence asthma inception is poorly understood, much research has focused on the host response to respiratory viruses and how viruses can promote; or how the host response is affected by subsequent allergen sensitization and exposure. This review focuses on the innate interferon-mediated host response to respiratory viruses and discusses and summarizes the available evidence that this response is impaired or suboptimal. In addition, the ability of respiratory viruses to act in a synergistic or additive manner with TH2 pathways will be discussed. In this review we argue that these 2 outcomes are likely linked and discuss the available evidence that shows reciprocal negative regulation between innate interferons and TH2 mediators. With the renewed interest in anti-TH2 biologics, we propose a rationale for why they are particularly successful in controlling asthma exacerbations and suggest ways in which future clinical studies could be used to find direct evidence for this hypothesis.
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Affiliation(s)
- Michael R Edwards
- COPD & Asthma Section, National Heart Lung Institute, Imperial College London, London, United Kingdom; MRC & Asthma UK Centre for Allergic Mechanisms of Asthma, London, United Kingdom.
| | - Katherine Strong
- COPD & Asthma Section, National Heart Lung Institute, Imperial College London, London, United Kingdom; MRC & Asthma UK Centre for Allergic Mechanisms of Asthma, London, United Kingdom
| | - Aoife Cameron
- COPD & Asthma Section, National Heart Lung Institute, Imperial College London, London, United Kingdom; MRC & Asthma UK Centre for Allergic Mechanisms of Asthma, London, United Kingdom
| | - Ross P Walton
- COPD & Asthma Section, National Heart Lung Institute, Imperial College London, London, United Kingdom; MRC & Asthma UK Centre for Allergic Mechanisms of Asthma, London, United Kingdom
| | - David J Jackson
- COPD & Asthma Section, National Heart Lung Institute, Imperial College London, London, United Kingdom; MRC & Asthma UK Centre for Allergic Mechanisms of Asthma, London, United Kingdom; Guy's & St Thomas's Hospital London, London, United Kingdom
| | - Sebastian L Johnston
- COPD & Asthma Section, National Heart Lung Institute, Imperial College London, London, United Kingdom; MRC & Asthma UK Centre for Allergic Mechanisms of Asthma, London, United Kingdom
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11
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Affiliation(s)
- C H Flayer
- Pulmonary, Critical Care and Sleep Medicine, Translational Lung Biology Center, University of California, Davis, Davis, CA, USA
| | - A Haczku
- Pulmonary, Critical Care and Sleep Medicine, Translational Lung Biology Center, University of California, Davis, Davis, CA, USA
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12
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Potaczek DP, Harb H, Michel S, Alhamwe BA, Renz H, Tost J. Epigenetics and allergy: from basic mechanisms to clinical applications. Epigenomics 2017; 9:539-571. [PMID: 28322581 DOI: 10.2217/epi-2016-0162] [Citation(s) in RCA: 175] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Allergic diseases are on the rise in the Western world and well-known allergy-protecting and -driving factors such as microbial and dietary exposure, pollution and smoking mediate their influence through alterations of the epigenetic landscape. Here, we review key facts on the involvement of epigenetic modifications in allergic diseases and summarize and critically evaluate the lessons learned from epigenome-wide association studies. We show the potential of epigenetic changes for various clinical applications: as diagnostic tools, to assess tolerance following immunotherapy or possibly predict the success of therapy at an early time point. Furthermore, new technological advances such as epigenome editing and DNAzymes will allow targeted alterations of the epigenome in the future and provide novel therapeutic tools.
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Affiliation(s)
- Daniel P Potaczek
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps-Universität Marburg, Marburg, Germany.,International Inflammation (in-FLAME) Network, Worldwide Universities Network (WUN).,German Centre for Lung Research (DZL).,John Paul II Hospital, Krakow, Poland
| | - Hani Harb
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps-Universität Marburg, Marburg, Germany.,International Inflammation (in-FLAME) Network, Worldwide Universities Network (WUN).,German Centre for Lung Research (DZL)
| | - Sven Michel
- Secarna Pharmaceuticals GmbH & Co KG, Planegg, Germany
| | - Bilal Alashkar Alhamwe
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps-Universität Marburg, Marburg, Germany
| | - Harald Renz
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Philipps-Universität Marburg, Marburg, Germany.,International Inflammation (in-FLAME) Network, Worldwide Universities Network (WUN).,German Centre for Lung Research (DZL)
| | - Jörg Tost
- Laboratory for Epigenetics & Environment, Centre National de Génotypage, CEA-Institut de Génomique, Evry, France
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13
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Abstract
PURPOSE OF REVIEW The goal of this review was to systematically analyze recent studies updating our knowledge on the role of epigenetic mechanisms in childhood asthma. RECENT FINDINGS A systematic literature search was conducted that identified 23 fresh articles published within the last 5 years reporting the results of human studies on the relationships between epigenetic modifications and childhood asthma or its/related phenotypes. In almost all these studies, meaningful associations between levels of epigenetic marks (DNA methylation and/or histone modifications) and pediatric asthma or its/related phenotypes have been observed. In addition, many studies identified by our screening analyzed those associations in the context of environmental factors, such as pollution, tobacco smoke, farming, or diet, showing in a huge majority a modifying effect of those exposures. SUMMARY The results of our systematic literature search provide a strong support for the role of epigenetic mechanisms in (mediating the effects of environmental exposure on) pediatric asthma. This knowledge may possibly be translated into diagnostic and/or therapeutic approaches.
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14
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Li JY, Zhang Y, Lin XP, Ruan Y, Wang Y, Wang CS, Zhang L. Association between DNA hypomethylation at IL13 gene and allergic rhinitis in house dust mite-sensitized subjects. Clin Exp Allergy 2016; 46:298-307. [PMID: 26399722 DOI: 10.1111/cea.12647] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 08/28/2015] [Accepted: 09/16/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND Allergic rhinitis (AR) is a complex disease, in which gene-environment interactions contribute to its pathogenesis. Epigenetic modifications such as DNA methylation play an important role in the regulation of gene function. As IL13, a pleiotropic cytokine, may be important in conferring susceptibility to AR, the aim of the present work was to assess the relationship between a CpG island methylation status at the upstream of IL13 gene and house dust mite (HDM)-sensitized AR in Han Chinese subjects. METHODS A total of 60 patients with HDM-sensitized AR and 65 control subjects were enrolled as two independent cohorts from Beijing and Liaoning. MassARRAY EpiTYPER and pyrosequencing was used to systematically screen the status of DNA methylation in peripheral blood leucocytes. IL13 mRNA expression was measured by real-time quantitative PCR. Electrophoretic mobility shift assay was used to assess the function of methylation site. RESULTS The mean level of methylation was decreased in the AR patient group compared with the control group (P = 0.01). Two of a total of 33 IL13CpG units analysed (CpG units 24 : 25 : 26 and 38 : 39) showed significant differences in methylation status between the AR patient group and the control group, with DNA hypomethylation at CpG38 significantly associated with higher risk of HDM-sensitized AR in both independent cohorts and a combined cohort (Beijing: OR = 1.24, 95%CI = 1.01-1.52, P = 0.036; Liaoning: OR = 1.62, 95%CI = 1.11-2.38, P = 0.013; Combined: OR = 1.31, 95%CI = 1.10-1.56, P = 0.002). Methylation level of CpG38 correlated negatively with both IL13 mRNA expression and serum total IgE level and affected the binding affinity of SP1. CONCLUSIONS DNA hypomethylation of IL13 gene may be associated with increased risk of AR from HDM sensitization.
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Affiliation(s)
- J Y Li
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Y Zhang
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal diseases, Beijing Institute of Otolaryngology, Beijing, China.,Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China
| | - X P Lin
- Center of Allergy and Immunotherapy, The General Hospital of Shenyang Military Command, Shenyang, China
| | - Y Ruan
- Beijing Key Laboratory of Nasal diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - Y Wang
- Beijing Key Laboratory of Nasal diseases, Beijing Institute of Otolaryngology, Beijing, China
| | - C S Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal diseases, Beijing Institute of Otolaryngology, Beijing, China.,Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China
| | - L Zhang
- Department of Otolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Nasal diseases, Beijing Institute of Otolaryngology, Beijing, China.,Department of Allergy, Beijing TongRen Hospital, Capital Medical University, Beijing, China
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15
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Grzegorzewska AE, Paciorkowski M, Mostowska A, Frycz B, Warchoł W, Stolarek I, Figlerowicz M, Jagodziński PP. Associations of the calcium-sensing receptor gene CASR rs7652589 SNP with nephrolithiasis and secondary hyperparathyroidism in haemodialysis patients. Sci Rep 2016; 6:35188. [PMID: 27739473 PMCID: PMC5064403 DOI: 10.1038/srep35188] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 09/21/2016] [Indexed: 12/20/2022] Open
Abstract
Nephrolithiasis, secondary hyperparathyroidism (sHPT), and cardiovascular complications are associated with disturbances in Ca handling and contribute to morbidity/mortality during haemodialysis (HD). Calcimimetics, activators of the calcium-sensing receptor (CaSR), provide an effective means of reducing parathyroid hormone (PTH) secretion in sHPT. Polymorphism in CaSR gene (CASR) influences Ca-related parameters, however it was not shown in HD patients for CASR rs7652589. The minor allele at this polymorphism modifies the binding sites of transcription factors and CaSR expression. We hypothesized that CASR rs7652589 variants may also influence CaSR in end stage renal disease (ESRD). We aimed to determine the associations of rs7652589 with nephrolithiasis-related ESRD, Ca, P, ALP, PTH, response to treatment with cinacalcet, prevalence of coronary artery disease, and all-cause/cardiovascular mortality in HD patients (n = 1162). Healthy individuals (n = 918) were controls. This study shows that the A allele of rs7652589 is a risk allele for nephrolithiasis-related ESRD. The AA genotype is associated with more severe sHPT (higher Ca and PTH concentrations). The A allele is associated with reduced CaSR transcript level in peripheral blood mononuclear cells. According to computational analysis, potential binding sites for GLI3, AHR and TP53 are removed by the A allele, whereas binding sites for SOX18 and TP63 are created.
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Affiliation(s)
- Alicja E Grzegorzewska
- Department of Nephrology, Transplantology and Internal Diseases, Poznan University of Medical Sciences, Poznań, Poland
| | | | - Adrianna Mostowska
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Poznań, Poland
| | - Bartosz Frycz
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Poznań, Poland
| | - Wojciech Warchoł
- Department of Biophysics, Poznan University of Medical Sciences, Poznań, Poland
| | - Ireneusz Stolarek
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland
| | - Marek Figlerowicz
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Poznań, Poland
| | - Paweł P Jagodziński
- Department of Biochemistry and Molecular Biology, Poznan University of Medical Sciences, Poznań, Poland
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16
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Histone acetyltransferease p300 modulates TIM4 expression in dendritic cells. Sci Rep 2016; 6:21336. [PMID: 26899911 PMCID: PMC4761958 DOI: 10.1038/srep21336] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 01/20/2016] [Indexed: 01/18/2023] Open
Abstract
TIM4 (T cell immunoglobulin mucin domain molecule-4) plays a critical role in the initiation of skewed T helper (Th) 2 polarization. The factors regulating TIM4 expression are unclear. This study tests a hypothesis that p300 and STAT6 (signal transducer and activator transcription-6) regulates TIM4 expression in dendritic cells (DC). In this study, a food allergy mouse model was developed with ovalbumin (a specific antigen) and cholera toxin (CT; an adjuvant). The chromatin immunoprecipitation assay was performed to evaluate the chromatin changes at TIM4 and STAT6 promoters. The TIM4 expression was evaluated by real time RT-PCR and Western blotting. The results showed that high levels of p300 and TIM4 were detected in the intestinal DCs of mice with intestinal allergy. p300 is involved in the CT-induced TIM4 expression in DCs. p300 interacts with the chromatin at the TIM4 promoter locus in DCs isolated from allergic mice. CT increases p300 expression to regulate STAT6 levels in DCs. STAT6 mediates the CT-induced TIM4 expression in DCs. In conclusion, p300 and STAT6 mediate the microbial product CT-induced TIM4 expression in DCs.
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17
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Ng CL, Wang DY. Latest developments in allergic rhinitis in Allergy for clinicians and researchers. Allergy 2015; 70:1521-30. [PMID: 26443244 DOI: 10.1111/all.12782] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2015] [Indexed: 02/06/2023]
Abstract
Research efforts in allergic rhinitis have always been intense. Over the past 3 years, numerous breakthroughs in basic science and clinical research have been made, augmenting our understanding of this condition that afflicts a significant proportion of the global population. New epidemiological findings, novel insights into the molecular and cellular mechanisms of allergy, enhancement of current developmental theories, new concepts of the goals and endpoints of management, and latest therapeutic modalities that includes the harnessing of information technology and big data are some areas where important advances were made. We attempt to bring you a summary of the key research advances made in the field of allergic rhinitis from 2013 to 2015.
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Affiliation(s)
- C. L. Ng
- Department of Otolaryngology; Yong Loo Lin School of Medicine; National University of Singapore; National University Health System; Singapore City Singapore
| | - D. Y. Wang
- Department of Otolaryngology; Yong Loo Lin School of Medicine; National University of Singapore; National University Health System; Singapore City Singapore
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18
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Wypasek E, Potaczek DP, Undas A. Association of the C-Reactive Protein Gene (CRP) rs1205 C>T Polymorphism with Aortic Valve Calcification in Patients with Aortic Stenosis. Int J Mol Sci 2015; 16:23745-59. [PMID: 26473826 PMCID: PMC4632724 DOI: 10.3390/ijms161023745] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 08/28/2015] [Accepted: 08/31/2015] [Indexed: 02/04/2023] Open
Abstract
Elevation in C-reactive protein (CRP) levels have been shown in patients with aortic valve stenosis (AS). Minor allele of the CRP gene (CRP) rs1205 C>T polymorphism has been associated with lower plasma CRP concentrations in cohorts of healthy and atherosclerotic patients. Considering the existing similarities between atherosclerosis and AS, we examined the effect of CRP rs1205 C>T polymorphism on the AS severity. Three hundred consecutive Caucasian patients diagnosed with AS were genotyped for the rs1205 C>T polymorphism using the TaqMan assay. Severity of the AS was assessed using transthoracic echocardiography. The degree of calcification was analyzed semi-quantitatively. Carriers of the rs1205 T allele were characterized by elevated serum CRP levels (2.53 (1.51-3.96) vs. 1.68 (0.98-2.90) mg/L, p<0.001) and a higher proportion of the severe aortic valve calcification (70.4% vs. 55.1%, p=0.01) compared with major homozygotes. The effect of CRP rs1205 polymorphism on CRP levels is opposite in AS-affected than in unaffected subjects, suggesting existence of a disease-specific molecular regulatory mechanism. Furthermore, rs1205 variant allele predisposes to larger aortic valve calcification, potentially being a novel genetic risk marker of disease progression.
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Affiliation(s)
- Ewa Wypasek
- Institute of Cardiology, School of Medicine, Jagiellonian University, 31-202 Cracow, Poland.
- John Paul II Hospital, 31-202 Cracow, Poland.
| | - Daniel P Potaczek
- John Paul II Hospital, 31-202 Cracow, Poland.
- Institute of Laboratory Medicine, Philipps-Universität Marburg, 35043 Marburg, Germany.
| | - Anetta Undas
- Institute of Cardiology, School of Medicine, Jagiellonian University, 31-202 Cracow, Poland.
- John Paul II Hospital, 31-202 Cracow, Poland.
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19
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Toncheva AA, Potaczek DP, Schedel M, Gersting SW, Michel S, Krajnov N, Gaertner VD, Klingbeil JM, Illig T, Franke A, Winkler C, Hohlfeld JM, Vogelberg C, von Berg A, Bufe A, Heinzmann A, Laub O, Rietschel E, Simma B, Genuneit J, Muntau AC, Kabesch M. Childhood asthma is associated with mutations and gene expression differences of ORMDL genes that can interact. Allergy 2015; 70:1288-99. [PMID: 26011647 DOI: 10.1111/all.12652] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND Genomewide association studies identified ORMDL3 as a plausible asthma candidate gene. ORMDL proteins regulate sphingolipid metabolism and ceramide homeostasis and participate in lymphocyte activation and eosinophil recruitment. Strong sequence homology between the three ORMDL genes and ORMDL protein conservation among different species suggest that they may have shared functions. We hypothesized that if single nucleotide polymorphisms (SNPs) in ORMDL3 alter its gene expression and play a role in asthma, variants in ORMDL1 and ORMDL2 might also be associated with asthma. METHODS Asthma associations of 44 genotyped SNPs were determined in at least 1303 subjects (651 asthmatics). ORMDL expression was evaluated in peripheral blood mononuclear cells (PBMC) from 55 subjects (eight asthmatics) before and after allergen stimulation, and in blood (n = 60, 5 asthmatics). Allele-specific cis-effects on ORMDL expression were assessed. Interactions between human ORMDL proteins were determined in living cells. RESULTS Sixteen SNPs in all three ORMDLs were associated with asthma (14 in ORMDL3). Baseline expression of ORMDL1 (P = 1.7 × 10(-6) ) and ORMDL2 (P = 4.9 × 10(-5) ) was significantly higher in PBMC from asthmatics, while induction of ORMDLs upon stimulation was stronger in nonasthmatics. Disease-associated alleles (rs8079416, rs4795405, rs3902920) alter ORMDL3 expression. ORMDL proteins formed homo- and heterooligomers and displayed similar patterns of interaction with SERCA2 and SPT1. CONCLUSIONS Polymorphisms in ORMDL genes are associated with asthma. Asthmatics exhibit increased ORMDL levels, suggesting that ORMDLs contribute to asthma. Formation of heterooligomers and similar interaction patterns with proteins involved in calcium homeostasis and sphingolipid metabolism could indicate shared biological roles of ORMDLs, influencing airway remodeling and hyperresponsiveness.
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Affiliation(s)
- A. A. Toncheva
- Department of Pediatric Pneumology and Allergy; University Children's Hospital Regensburg (KUNO); Regensburg Germany
- Department of Pediatric Pneumology, Allergy and Neonatology; Hannover Medical School; Hannover Germany
| | - D. P. Potaczek
- Department of Pediatric Pneumology, Allergy and Neonatology; Hannover Medical School; Hannover Germany
| | - M. Schedel
- Department of Pediatric Pneumology, Allergy and Neonatology; Hannover Medical School; Hannover Germany
- Department of Pediatrics; National Jewish Health; Denver CO USA
| | - S. W. Gersting
- Department of Molecular Pediatrics; Dr. von Hauner Children's Hospital; Ludwig-Maximilians-University; Munich Germany
| | - S. Michel
- Department of Pediatric Pneumology and Allergy; University Children's Hospital Regensburg (KUNO); Regensburg Germany
- Department of Pediatric Pneumology, Allergy and Neonatology; Hannover Medical School; Hannover Germany
| | - N. Krajnov
- Department of Pediatric Pneumology, Allergy and Neonatology; Hannover Medical School; Hannover Germany
| | - V. D. Gaertner
- Department of Pediatric Pneumology and Allergy; University Children's Hospital Regensburg (KUNO); Regensburg Germany
| | - J. M. Klingbeil
- Department of Molecular Pediatrics; Dr. von Hauner Children's Hospital; Ludwig-Maximilians-University; Munich Germany
| | - T. Illig
- Research Unit of Molecular Epidemiology; Helmholtz Zentrum Munich; Neuherberg Germany
- Hannover Unified Biobank; Hannover Medical School; Hannover Germany
| | - A. Franke
- Institute of Clinical Molecular Biology; Christian-Albrechts-University Kiel; Kiel Germany
| | - C. Winkler
- Department of Clinical Airway Research; Fraunhofer Institute for Toxicology and Experimental Medicine; Hannover Germany
- Department of Respiratory Medicine; Hannover Medical School; Hannover Germany
| | - J. M. Hohlfeld
- Department of Clinical Airway Research; Fraunhofer Institute for Toxicology and Experimental Medicine; Hannover Germany
- Department of Respiratory Medicine; Hannover Medical School; Hannover Germany
| | - C. Vogelberg
- University Children's Hospital; Technical University Dresden; Dresden Germany
| | - A. von Berg
- Research Institute for the Prevention of Allergic Diseases; Children's Department; Marien-Hospital; Wesel Germany
| | - A. Bufe
- Department of Experimental Pneumology; Ruhr-University; Bochum Germany
| | - A. Heinzmann
- University Children's Hospital; Albert Ludwigs University; Freiburg Germany
| | - O. Laub
- Kinder- und Jugendarztpraxis Laub; Rosenheim Germany
| | - E. Rietschel
- University Children's Hospital; University of Cologne; Cologne Germany
| | - B. Simma
- Children's Department; University Teaching Hospital; Landeskrankenhaus Feldkirch; Feldkirch Austria
| | - J. Genuneit
- Institute of Epidemiology and Medical Biometry; Ulm University; Ulm Germany
| | - A. C. Muntau
- University Children's Hospital; University Medical Center Hamburg Eppendorf; Hamburg Germany
| | - M. Kabesch
- Department of Pediatric Pneumology and Allergy; University Children's Hospital Regensburg (KUNO); Regensburg Germany
- Department of Pediatric Pneumology, Allergy and Neonatology; Hannover Medical School; Hannover Germany
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20
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Association of single nucleotide polymorphism rs3792876 in SLC22A4 gene with autoimmune thyroid disease in a Chinese Han population. BMC MEDICAL GENETICS 2015; 16:76. [PMID: 26329403 PMCID: PMC4557484 DOI: 10.1186/s12881-015-0222-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/28/2014] [Accepted: 08/20/2015] [Indexed: 12/04/2022]
Abstract
Background The autoimmune thyroid diseases (AITD), including Graves’ disease (GD) and Hashimoto’s thyroiditis (HT), are caused by interactions between susceptibility genes and environmental triggers. Single nucleotide polymorphisms (SNPs) of Solute carrier family 22, member 4 (SLC22A4) have been shown to be associated with several autoimmune diseases, including Crohn’s disease (CD) and rheumatoid arthritis (RA). The aim of this study is to investigate whether SNP rs3792876 in the SLC22A4 gene is associated with GD, HT and AITD in a Chinese Han population. Methods In this study, we collected specimens from 553 Chinese Han individuals of 92 AITD pedigrees in 10 cities in Liaoning province, China (80 GD pedigrees, 478 members; 12 HT pedigrees, 75 members). SNP rs3792876 was genotyped using the TaqMan allelic discrimination assay. Hardy-Weinberg Equilibrium tests were performed among founders of the pedigrees using Haploview software. Family-based association tests performed using FBAT software. Results No deviation from Hardy-Weinberg equilibrium was observed (p > 0.05). There were not significant association between the SLC22A4 gene polymorphism (rs3792876) and GD, HT and AITD was found. Conclusions These results suggest a lack of association between the SLC22A4 gene polymorphism rs3792876 and susceptibility to GD, HT and AITD in a Chinese Han population.
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21
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An Exploratory Pilot Study of Genetic Marker for IgE-Mediated Allergic Diseases with Expressions of FcεR1α and Cε. Int J Mol Sci 2015; 16:9504-19. [PMID: 25923080 PMCID: PMC4463601 DOI: 10.3390/ijms16059504] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 04/10/2015] [Accepted: 04/20/2015] [Indexed: 12/19/2022] Open
Abstract
The high affinity immunoglobulin E (IgE) receptor-FcεR1 is mainly expressed on the surface of effector cells. Cross-linking of IgE Abs bound to FcεR1 by multi-valent antigens can induce the activation of these cells and the secretion of inflammatory mediators. Since FcεR1 plays a central role in the induction and maintenance of allergic responses, this study aimed to investigate the association of FcεR1 with the allergic phenotype of Cε expression and cytokine and histamine release from peripheral leukocytes. Peripheral leukocytes from 67 allergic and 50 non-allergic subjects were used for genotyping analysis. Peripheral mononuclear cells (PBMCs) were used for Cε expression and ELISpot analysis, while polymorphonuclear cells (PMNs) were used for histamine release. The association between genotype polymorphism of the FcεR1α promoter region (rs2427827 and rs2251746) and allergic features of Cε expression and histamine were analyzed, and their effects on leukocytes function were compared with wild type. The genotype polymorphisms of FcεR1α promoter region with CT and TT in rs2427827 and TC in rs2251746 were significantly higher in allergic patients than in non-allergic controls. Patients with single nucleotide polymorphism (SNP) of FcεR1α promoter region had high levels of total IgE, mite-specific Der p 2 (Group 2 allergen of Dermatophagoides pteronyssinus)-specific IgE and IgE secretion B cells. The mRNA expression of FcεR1α was significantly increased after Der p2 stimulation in PBMCs with SNPs of the FcεR1α promoter region. Despite the increased Cε mRNA expression in PBMCs and histamine release from PMNs and the up-regulated mRNA expression of interleukin (IL)-6 and IL-8 secretions after Der p2 stimulation, there was no statistically significant difference between SNPs of the FcεR1α promoter region and the wild type. SNPs of FcεR1α promoter region were associated with IgE expression, IgE producing B cells, and increased Der p2-induced FcεR1α mRNA expression. These SNPs may be used as a disease marker for IgE-mediated allergic inflammation caused by Dermatophagoides pteronyssinus.
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22
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Oxelius VA, Krueger R, Ahlstedt S, Keil T, Lau S, Wahn U. Innate IgG molecules and innate B cells expressed by immunoglobulin constant heavy G chain (Fcγ) genetic marker genes are involved in the 'allergic march' of IgE sensitization in children. Int Arch Allergy Immunol 2015; 166:25-9. [PMID: 25765251 DOI: 10.1159/000371351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 12/03/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Interindividual variations of immunoglobulin constant heavy G chain (IGHG) genes on chromosome 14q32.3 are identified by alternative genetic markers (GM) of IgG3, IgG1 and IgG2, respectively. They express structurally and functionally innate IgG molecules and B cells, associated with allergic disease, replicated in several studies. MATERIALS AND METHODS 1-year-old and 10-year-old, IgE-sensitized and non-sensitized children from the German Multicenter Allergy Study birth cohort were assessed by new serological methods for the mendelian IGHG (Fcγ) (GM) genes, as innate IgG molecules and innate B cells. RESULTS Food allergy sensitization in thirty-five 1-year-old children (124 not sensitized) was associated with the IGHG*bfn haplotype and B*(bfn) cells (OR 1.9, 95% CI 1.2-3.1; p = 0.010). Aeroallergen sensitization in ninety-nine 10-year-old children (95 not sensitized) was associated with the same genes (OR 1.4, 95% CI 1.02-1.9; p = 0.034). The IgE sensitization was most prominent in the restrictive homozygous IGHG*bfn/*bfn diplotype, 34% at age 1, increasing to 60% at age 10, rating the highest numbers of positive IgE tests, expressing increased levels of IgE and innate IgG2*n. CONCLUSIONS The IGHG*bfn haplotype (B*(bfn) cells) and increased innate IgG2*n levels are predictive factors for IgE sensitization in childhood. IGHG genes can be assessed for prognostic and preventive purposes in clinical care.
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Affiliation(s)
- Vivi-Anne Oxelius
- Department of Pediatrics and Institute of Laboratory Medicine, Department of Clinical Immunology, University Hospital, Lund University, Lund, Sweden
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