PMID- 30120223 OWN - NLM STAT- MEDLINE DCOM- 20181217 LR - 20200309 IS - 2041-1723 (Electronic) IS - 2041-1723 (Linking) VI - 9 IP - 1 DP - 2018 Aug 17 TI - Epigenetic dysregulation of naive CD4+ T-cell activation genes in childhood food allergy. PG - 3308 LID - 10.1038/s41467-018-05608-4 [doi] LID - 3308 AB - Food allergy poses a significant clinical and public health burden affecting 2-10% of infants. Using integrated DNA methylation and transcriptomic profiling, we found that polyclonal activation of naive CD4+ T cells through the T cell receptor results in poorer lymphoproliferative responses in children with immunoglobulin E (IgE)-mediated food allergy. Reduced expression of cell cycle-related targets of the E2F and MYC transcription factor networks, and remodeling of DNA methylation at metabolic (RPTOR, PIK3D, MAPK1, FOXO1) and inflammatory genes (IL1R, IL18RAP, CD82) underpins this suboptimal response. Infants who fail to resolve food allergy in later childhood exhibit cumulative increases in epigenetic disruption at T cell activation genes and poorer lymphoproliferative responses compared to children who resolved food allergy. Our data indicate epigenetic dysregulation in the early stages of signal transduction through the T cell receptor complex, and likely reflects pathways modified by gene-environment interactions in food allergy. FAU - Martino, David AU - Martino D AUID- ORCID: 0000-0001-6823-4696 AD - Department of Paediatrics, Murdoch Children's Research Institute, The University of Melbourne, Flemington Road, Parkville, VIC, 3052, Australia. AD - Telethon Kids Institute, 100 Roberts Road, Perth, WA, Australia. FAU - Neeland, Melanie AU - Neeland M AD - Department of Paediatrics, Murdoch Children's Research Institute, The University of Melbourne, Flemington Road, Parkville, VIC, 3052, Australia. FAU - Dang, Thanh AU - Dang T AD - Department of Paediatrics, Murdoch Children's Research Institute, The University of Melbourne, Flemington Road, Parkville, VIC, 3052, Australia. FAU - Cobb, Joanna AU - Cobb J AD - Department of Paediatrics, Murdoch Children's Research Institute, The University of Melbourne, Flemington Road, Parkville, VIC, 3052, Australia. FAU - Ellis, Justine AU - Ellis J AD - Department of Paediatrics, Murdoch Children's Research Institute, The University of Melbourne, Flemington Road, Parkville, VIC, 3052, Australia. FAU - Barnett, Alice AU - Barnett A AD - Department of Paediatrics, Murdoch Children's Research Institute, The University of Melbourne, Flemington Road, Parkville, VIC, 3052, Australia. FAU - Tang, Mimi AU - Tang M AD - Department of Paediatrics, Murdoch Children's Research Institute, The University of Melbourne, Flemington Road, Parkville, VIC, 3052, Australia. FAU - Vuillermin, Peter AU - Vuillermin P AD - Department of Paediatrics, Murdoch Children's Research Institute, The University of Melbourne, Flemington Road, Parkville, VIC, 3052, Australia. AD - Barwon Health, Geelong, VIC, 3220, Australia. AD - Deakin University, Geelong, VIC, 3216, Australia. FAU - Allen, Katrina AU - Allen K AD - Department of Paediatrics, Murdoch Children's Research Institute, The University of Melbourne, Flemington Road, Parkville, VIC, 3052, Australia. katrina.allen@mcri.edu.au. FAU - Saffery, Richard AU - Saffery R AUID- ORCID: 0000-0002-9510-4181 AD - Department of Paediatrics, Murdoch Children's Research Institute, The University of Melbourne, Flemington Road, Parkville, VIC, 3052, Australia. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180817 PL - England TA - Nat Commun JT - Nature communications JID - 101528555 SB - IM MH - CD4-Positive T-Lymphocytes/*immunology MH - Case-Control Studies MH - Child MH - Child, Preschool MH - Cluster Analysis MH - DNA Methylation/genetics MH - *Epigenesis, Genetic MH - Food Hypersensitivity/*genetics/*immunology MH - Gene Expression Profiling MH - Humans MH - Infant MH - Lymphocyte Activation/*genetics MH - Polymorphism, Genetic PMC - PMC6098117 COIS- The authors declare no competing interests. EDAT- 2018/08/19 06:00 MHDA- 2018/12/18 06:00 PMCR- 2018/08/17 CRDT- 2018/08/19 06:00 PHST- 2017/11/30 00:00 [received] PHST- 2018/06/05 00:00 [accepted] PHST- 2018/08/19 06:00 [entrez] PHST- 2018/08/19 06:00 [pubmed] PHST- 2018/12/18 06:00 [medline] PHST- 2018/08/17 00:00 [pmc-release] AID - 10.1038/s41467-018-05608-4 [pii] AID - 5608 [pii] AID - 10.1038/s41467-018-05608-4 [doi] PST - epublish SO - Nat Commun. 2018 Aug 17;9(1):3308. doi: 10.1038/s41467-018-05608-4.