Publication Date:
2015-02-25
Description:
Immunoglobulin E (IgE) is a central mediator of allergic (atopic) inflammation. Therapies directed against IgE can alleviate hay fever and allergic asthma. Genetic association studies have not yet identified novel therapeutic targets or pathways underlying IgE regulation. We therefore surveyed epigenetic associations between serum IgE concentrations and methylation at loci concentrated in CpG islands genome wide in 95 nuclear pedigrees, using DNA from peripheral blood leukocytes. We validated positive results in additional families and in subjects from the general population. Here we show replicated associations--with a meta-analysis false discovery rate less than 10(-4)--between IgE and low methylation at 36 loci. Genes annotated to these loci encode known eosinophil products, and also implicate phospholipid inflammatory mediators, specific transcription factors and mitochondrial proteins. We confirmed that methylation at these loci differed significantly in isolated eosinophils from subjects with and without asthma and high IgE levels. The top three loci accounted for 13% of IgE variation in the primary subject panel, explaining the tenfold higher variance found compared with that derived from large single-nucleotide polymorphism genome-wide association studies. This study identifies novel therapeutic targets and biomarkers for patient stratification for allergic diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4416961/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4416961/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liang, Liming -- Willis-Owen, Saffron A G -- Laprise, Catherine -- Wong, Kenny C C -- Davies, Gwyneth A -- Hudson, Thomas J -- Binia, Aristea -- Hopkin, Julian M -- Yang, Ivana V -- Grundberg, Elin -- Busche, Stephan -- Hudson, Marie -- Ronnblom, Lars -- Pastinen, Tomi M -- Schwartz, David A -- Lathrop, G Mark -- Moffatt, Miriam F -- Cookson, William O C M -- 096964/Wellcome Trust/United Kingdom -- 097117/Wellcome Trust/United Kingdom -- P01-ES18181/ES/NIEHS NIH HHS/ -- R01 HL101251-01/HL/NHLBI NIH HHS/ -- WT 077959/Wellcome Trust/United Kingdom -- WT096964/Wellcome Trust/United Kingdom -- Medical Research Council/United Kingdom -- England -- Nature. 2015 Apr 30;520(7549):670-4. doi: 10.1038/nature14125. Epub 2015 Feb 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Epidemiology and Biostatistics, Harvard School of Public Health, Boston, Massachusetts 02115, USA. ; National Heart and Lung Institute, Imperial College, London SW3 6LY, UK. ; Universite du Quebec a Chicoutimi, Saguenay, Quebec G7H 2B1, Canada. ; Institute of Life Science, College of Medicine, Swansea University, Swansea SA2 8PP, UK. ; 1] Ontario Institute for Cancer Research, Toronto, Ontario M5G 0A3, Canada [2] Departments of Medical Biophysics and Molecular Genetics, University of Toronto, Ontario M5S 1A1, Canada. ; University of Colorado School of Medicine and National Jewish Health, Denver, Colorado 80206, USA. ; Department of Human Genetics, McGill University and Genome Quebec Innovation Centre, Montreal H3A 1B1, Canada. ; Jewish General Hospital and Lady Davis Research Institute, Montreal H3T 1E2, Canada. ; Department of Medical Sciences, SciLifeLab, Uppsala University, Uppsala SE-751 44, Sweden. ; 1] Department of Human Genetics, McGill University and Genome Quebec Innovation Centre, Montreal H3A 1B1, Canada [2] Department of Medical Genetics, McGill University Health Centre, Montreal H3H 1P3, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25707804" target="_blank"〉PubMed〈/a〉
Keywords:
Adolescent
;
Adult
;
Asthma/blood/genetics
;
Child
;
CpG Islands/genetics
;
DNA Methylation/*genetics
;
Eosinophils/cytology/metabolism
;
Epigenesis, Genetic/*genetics
;
Female
;
*Genetic Association Studies
;
Genome, Human/*genetics
;
Humans
;
Immunoglobulin E/*blood
;
Inflammation Mediators
;
Male
;
Middle Aged
;
Mitochondrial Proteins/genetics
;
Pedigree
;
Polymorphism, Single Nucleotide/genetics
;
Transcription Factors/genetics
;
Young Adult
Print ISSN:
0028-0836
Electronic ISSN:
1476-4687
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink
