PMID- 25746371 OWN - NLM STAT- MEDLINE DCOM- 20160104 LR - 20150324 IS - 1878-1705 (Electronic) IS - 1567-5769 (Linking) VI - 25 IP - 2 DP - 2015 Apr TI - Anti-allergic activity of R-phycocyanin from Porphyra haitanensis in antigen-sensitized mice and mast cells. PG - 465-73 LID - S1567-5769(15)00088-0 [pii] LID - 10.1016/j.intimp.2015.02.032 [doi] AB - The prevalence of food allergy has increased in Asian countries. Marine algae have been proposed as the potential resource for anti-allergic therapeutics. The present study was aimed at isolating R-phycocyanin (RPC) from Porphyra haitanensis and determining the anti-allergy potential of RPC in antigen-sensitized mice and mast cells. In animal experiments, RPC could effectively reduce tropomyosin (TM)-specific immunoglobulin E (IgE) and histamine levels, alleviate allergy symptoms and jejunum tissue inflammation in mice, and inhibit the expression and release of cytokines (interleukin-4 (IL-4) and IL-13) in peritoneal lavage fluid. In spleen lymphocyte experiments, high purity of RPC skewed the immunological function of CD4(+) T cells towards Th1 activity. A higher expression of interferon (IFN)-gamma was induced by a synergistic effect of TM and RPC. Through the Jun N-terminal kinase and Janus kinase 2 signaling pathways, IFN-gamma synthesis was induced by RPC in combination with TM. Anti-allergic effect of RPC was evaluated in IgE-mediated rat mast RBL-2H3 cells. The results demonstrated that RPC inhibited allergy markers, including the release of beta-hexosaminidase, histamine and ROS in antigen-sensitized RBL-2H3 cells. RPC also suppressed the production of pro-inflammatory factors (IL-4 and tumor necrosis factor-alpha). In conclusion, RPC decreased allergic sensitization against TM by blocking Th2 cell polarization as well as suppressed the release of allergic-mediators in antigen-stimulated mast cells. It may be used as a functional food component or active pharmaceutical ingredient for allergic patients. CI - Copyright (c) 2015 Elsevier B.V. All rights reserved. FAU - Liu, Qingmei AU - Liu Q AD - College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, 43 Yindou Road, Xiamen, 361021 Fujian, PR China. FAU - Wang, Youzhao AU - Wang Y AD - College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, 43 Yindou Road, Xiamen, 361021 Fujian, PR China. FAU - Cao, Minjie AU - Cao M AD - College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, 43 Yindou Road, Xiamen, 361021 Fujian, PR China. FAU - Pan, Tzuming AU - Pan T AD - Department of Biochemical Science and Technology, College of Life Science, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan. FAU - Yang, Yang AU - Yang Y AD - College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, 43 Yindou Road, Xiamen, 361021 Fujian, PR China. FAU - Mao, Haiyan AU - Mao H AD - College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, 43 Yindou Road, Xiamen, 361021 Fujian, PR China. FAU - Sun, Lechang AU - Sun L AD - College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, 43 Yindou Road, Xiamen, 361021 Fujian, PR China. FAU - Liu, Guangming AU - Liu G AD - College of Food and Biological Engineering, Fujian Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Jimei University, 43 Yindou Road, Xiamen, 361021 Fujian, PR China. Electronic address: gmliu@jmu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150304 PL - Netherlands TA - Int Immunopharmacol JT - International immunopharmacology JID - 100965259 RN - 0 (Anti-Allergic Agents) RN - 0 (Antigens) RN - 0 (Cytokines) RN - 0 (Tropomyosin) RN - 11016-15-2 (Phycocyanin) RN - 37341-29-0 (Immunoglobulin E) RN - 820484N8I3 (Histamine) SB - IM MH - Animals MH - Anti-Allergic Agents/*pharmacology/*therapeutic use MH - Antigens/immunology MH - Cell Line MH - Cell Proliferation MH - Cytokines/immunology MH - Feces/chemistry MH - Female MH - Histamine/blood/immunology MH - Hypersensitivity/blood/*drug therapy/immunology MH - Immunoglobulin E/blood MH - Jejunum/immunology MH - Mast Cells/*drug effects/immunology MH - Mice, Inbred BALB C MH - Phycocyanin/*pharmacology/*therapeutic use MH - Porphyra MH - Rats MH - Th2 Cells/immunology MH - Tropomyosin/immunology OTO - NOTNLM OT - Anti-allergic activity OT - Murine model OT - Porphyra haitanensis OT - R-phycocyanin OT - RBL-2H3 cell OT - Th2 immune response EDAT- 2015/03/10 06:00 MHDA- 2016/01/05 06:00 CRDT- 2015/03/10 06:00 PHST- 2014/12/24 00:00 [received] PHST- 2015/02/19 00:00 [revised] PHST- 2015/02/20 00:00 [accepted] PHST- 2015/03/10 06:00 [entrez] PHST- 2015/03/10 06:00 [pubmed] PHST- 2016/01/05 06:00 [medline] AID - S1567-5769(15)00088-0 [pii] AID - 10.1016/j.intimp.2015.02.032 [doi] PST - ppublish SO - Int Immunopharmacol. 2015 Apr;25(2):465-73. doi: 10.1016/j.intimp.2015.02.032. Epub 2015 Mar 4.