PMID- 36473469 OWN - NLM STAT- MEDLINE DCOM- 20221216 LR - 20230119 IS - 1097-4180 (Electronic) IS - 1074-7613 (Linking) VI - 55 IP - 12 DP - 2022 Dec 13 TI - Allergenic food protein consumption is associated with systemic IgG antibody responses in non-allergic individuals. PG - 2454-2469.e6 LID - S1074-7613(22)00594-5 [pii] LID - 10.1016/j.immuni.2022.11.004 [doi] AB - Although food-directed immunoglobulin E (IgE) has been studied in the context of allergies, the prevalence and magnitude of IgG responses against dietary antigens are incompletely characterized in the general population. Here, we measured IgG binding against food and environmental antigens obtained from allergen databases and the immune epitope database (IEDB), represented in a phage displayed library of 58,233 peptides. By profiling blood samples of a large cohort representing the average adult Israeli population (n = 1,003), we showed that many food antigens elicited systemic IgG in up to 50% of individuals. Dietary intake of specific food protein correlated with antibody binding, suggesting that diet can shape the IgG epitope repertoire. Our work documents abundant systemic IgG responses against food antigens and provides a reference map of the exact immunogenic epitopes on a population scale, laying the foundation to unravel the role of food- and environmental antigen-directed antibody binding in disease contexts. CI - Copyright (c) 2022 Elsevier Inc. All rights reserved. FAU - Leviatan, Sigal AU - Leviatan S AD - Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel. FAU - Vogl, Thomas AU - Vogl T AD - Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel; Diagnostic and Research Institute of Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Graz, Austria; Center for Cancer Research, Medical University of Vienna, Wien, Austria. Electronic address: thomas.vogl@meduniwien.ac.at. FAU - Klompus, Shelley AU - Klompus S AD - Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel. FAU - Kalka, Iris N AU - Kalka IN AD - Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel. FAU - Weinberger, Adina AU - Weinberger A AD - Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel. FAU - Segal, Eran AU - Segal E AD - Department of Computer Science and Applied Mathematics, Weizmann Institute of Science, Rehovot, Israel; Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel. Electronic address: eran.segal@weizmann.ac.il. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221205 PL - United States TA - Immunity JT - Immunity JID - 9432918 RN - 0 (Allergens) RN - 0 (Immunoglobulin G) RN - 0 (Epitopes) RN - 0 (Dietary Proteins) SB - IM MH - Humans MH - *Allergens MH - Immunoglobulin G MH - Antibody Formation MH - *Food Hypersensitivity MH - Epitopes MH - Dietary Proteins OTO - NOTNLM OT - antibody epitope repertoires OT - dietary antibodies OT - nutrition OT - nutritional immunology OT - phage display COIS- Declaration of interests The authors declare no competing interests. EDAT- 2022/12/07 06:00 MHDA- 2022/12/17 06:00 CRDT- 2022/12/06 18:42 PHST- 2021/12/07 00:00 [received] PHST- 2022/06/01 00:00 [revised] PHST- 2022/11/09 00:00 [accepted] PHST- 2022/12/07 06:00 [pubmed] PHST- 2022/12/17 06:00 [medline] PHST- 2022/12/06 18:42 [entrez] AID - S1074-7613(22)00594-5 [pii] AID - 10.1016/j.immuni.2022.11.004 [doi] PST - ppublish SO - Immunity. 2022 Dec 13;55(12):2454-2469.e6. doi: 10.1016/j.immuni.2022.11.004. Epub 2022 Dec 5.