PMID- 19483327 OWN - NLM STAT- MEDLINE DCOM- 20090724 LR - 20190720 IS - 0918-6158 (Print) IS - 0918-6158 (Linking) VI - 32 IP - 6 DP - 2009 Jun TI - Ellagic Acid attenuates immunoglobulin E-mediated allergic response in mast cells. PG - 1118-21 AB - Ellagic acid is known to have anti-oxidant, anti-carcinogenic and anti-mutagenic effects. However, roles of ellagic acid in the immediate-type allergic reactions have not yet been investigated. In the present study, we have demonstrated that ellagic acid attenuates immunoglobulin (Ig)E-mediated allergic response in mast cells and in vivo. Oral administration of ellagic acid inhibited anti-dinitrophenyl (DNP) IgE-mediated passive cutaneous anaphylaxis. Ellagic acid dose-dependently reduced histamine release and the expression and secretion of pro-inflammatory cytokines, such as tumor necrosis factor-alpha and interleukin-6 in rat peritoneal mast cells (RPMC) activated by anti-DNP IgE. Moreover, ellagic acid suppressed an increase in intracellular calcium ion concentration ([Ca(2+)](i)) in RPMC. Furthermore, ellagic acid decreased the activation of nuclear factor-kappa B (NF-kappaB). Decreased NF-kappaB activity as well as reduced [Ca(2+)](i) might be involved in the inhibitory effect of ellagic acid on the secretory response. Our findings provide possibility that ellagic acid may serve as an effective therapeutic agent for allergic diseases. FAU - Choi, Yun Ho AU - Choi YH AD - Department of Anatomy, Chonbuk National University Medical School, Jeonbuk, Republic of Korea. FAU - Yan, Guang Hai AU - Yan GH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Japan TA - Biol Pharm Bull JT - Biological & pharmaceutical bulletin JID - 9311984 RN - 0 (Anti-Allergic Agents) RN - 0 (Antigens) RN - 0 (Interleukin-6) RN - 0 (NF-kappa B) RN - 0 (Tumor Necrosis Factor-alpha) RN - 19YRN3ZS9P (Ellagic Acid) RN - 37341-29-0 (Immunoglobulin E) RN - SY7Q814VUP (Calcium) SB - IM MH - Animals MH - Anti-Allergic Agents/chemistry/*pharmacology MH - Antigens/immunology MH - Calcium/metabolism MH - Cell Nucleus/metabolism MH - Cells, Cultured MH - Cytosol/metabolism MH - Disease Models, Animal MH - Ellagic Acid/chemistry/*pharmacology MH - Histamine Release/drug effects MH - Hypersensitivity, Immediate/immunology/*prevention & control MH - Immunoglobulin E/*immunology MH - Interleukin-6/immunology MH - Male MH - Mast Cells/*drug effects/immunology MH - Molecular Structure MH - NF-kappa B/biosynthesis MH - Passive Cutaneous Anaphylaxis/*drug effects/immunology MH - Rats MH - Rats, Sprague-Dawley MH - Tumor Necrosis Factor-alpha/immunology EDAT- 2009/06/02 09:00 MHDA- 2009/07/25 09:00 CRDT- 2009/06/02 09:00 PHST- 2009/06/02 09:00 [entrez] PHST- 2009/06/02 09:00 [pubmed] PHST- 2009/07/25 09:00 [medline] AID - JST.JSTAGE/bpb/32.1118 [pii] AID - 10.1248/bpb.32.1118 [doi] PST - ppublish SO - Biol Pharm Bull. 2009 Jun;32(6):1118-21. doi: 10.1248/bpb.32.1118.