PMID- 36845043 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230228 IS - 2296-861X (Print) IS - 2296-861X (Electronic) IS - 2296-861X (Linking) VI - 10 DP - 2023 TI - A rose flavor compound activating the NRF2 pathway in dendritic cells ameliorates contact hypersensitivity in mice. PG - 1081263 LID - 10.3389/fnut.2023.1081263 [doi] LID - 1081263 AB - Dendritic cells (DCs), which are typical antigen-presenting cells, localize to various sites in the body, particularly the front line of infection as sentinels, and are involved in innate and adaptive immune responses. Although the functions of DCs, such as pathogen-induced cytokine production and antigen-specific T cell activation, are important for host defenses against infection and tumorigenesis, the hyper- and/or extended activation of DCs leads to inflammatory and autoimmune diseases. In the present study, beta-damascone, a major ingredient of rose fragrance, was selected from an aroma library as a candidate compound that suppresses antigen-induced immune responses. beta-Damascone inhibited the functions of DCs, including the antigen-dependent proliferation of T cells, DC-induced Th1 development, and the TLR ligand-induced production of inflammatory cytokines by DCs. The beta-damascone treatment also increased the protein level of the transcription factor NF-E2-related factor 2 (NRF2), which plays key roles in antioxidant responses, and the transcription of Hmox1 and Nqo1, target genes of NRF2, in DCs. Nrf2 (-/) (-) DCs induced Th1-development and produced large amount of IL-12p40 even in the presence of beta-damascone, whereas these functions by Nrf2 (+/-) DCs were inhibited by beta-damascone under the same conditions. The intake of beta-damascone suppressed ear swelling in contact hypersensitivity (CHS) model mice, but not in CHS-induced Nrf2 (-/) (-) mice. Collectively, the present results indicate the potential of the rose aroma compound beta-damascone, which suppresses DC-mediated immune responses by activating the NRF2 pathway in DCs, for the prevention and/or attenuation of immune-mediated diseases. CI - Copyright (c) 2023 Kodama, Okada, Hachisu, Ando, Ito, Nagata, Katagiri, Yasuda, Hiroki, Yashiro, Ichihara, Yamamoto and Nishiyama. FAU - Kodama, Naoki AU - Kodama N AD - Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan. FAU - Okada, Hikaru AU - Okada H AD - Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan. FAU - Hachisu, Masakazu AU - Hachisu M AD - Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan. FAU - Ando, Miki AU - Ando M AD - Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan. FAU - Ito, Naoto AU - Ito N AD - Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan. FAU - Nagata, Kazuki AU - Nagata K AD - Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan. FAU - Katagiri, Mayuka AU - Katagiri M AD - Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan. FAU - Yasuda, Yayoi AU - Yasuda Y AD - Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan. FAU - Hiroki, Ikumi AU - Hiroki I AD - Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan. FAU - Yashiro, Takuya AU - Yashiro T AD - Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan. FAU - Ichihara, Gaku AU - Ichihara G AD - Department of Occupational and Environmental Health, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Chiba, Japan. FAU - Yamamoto, Masayuki AU - Yamamoto M AD - Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Japan. FAU - Nishiyama, Chiharu AU - Nishiyama C AD - Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo, Japan. LA - eng PT - Journal Article DEP - 20230209 PL - Switzerland TA - Front Nutr JT - Frontiers in nutrition JID - 101642264 PMC - PMC9946980 OTO - NOTNLM OT - NRF2 OT - aroma OT - contact hypersensitivity OT - dendritic cell OT - rose OT - beta-damascone COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2023/02/28 06:00 MHDA- 2023/02/28 06:01 PMCR- 2023/01/01 CRDT- 2023/02/27 04:53 PHST- 2022/10/27 00:00 [received] PHST- 2023/01/23 00:00 [accepted] PHST- 2023/02/27 04:53 [entrez] PHST- 2023/02/28 06:00 [pubmed] PHST- 2023/02/28 06:01 [medline] PHST- 2023/01/01 00:00 [pmc-release] AID - 10.3389/fnut.2023.1081263 [doi] PST - epublish SO - Front Nutr. 2023 Feb 9;10:1081263. doi: 10.3389/fnut.2023.1081263. eCollection 2023.