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YANG L, ZHU X, SUGA M, SHINOHARA H. Evaluation of the Anti-Allergic Effect of Natural Medicines on Mast Cell by Using Two-Dimensional Surface Plasmon Resonance Observation. ELECTROCHEMISTRY 2021. [DOI: 10.5796/electrochemistry.20-00113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Lin YANG
- Graduate School of Innovative Life Science, University of Toyama
| | - Xianwei ZHU
- Innovation Research Centre of Acupuncture Combined with Medicine, Shaanxi University of Chinese Medicine
| | - Minoru SUGA
- Faculty of Engineering, Academic Assembly, University of Toyama
| | - Hiroaki SHINOHARA
- Graduate School of Innovative Life Science, University of Toyama
- Faculty of Engineering, Academic Assembly, University of Toyama
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Ding Y, Li C, Zhang Y, Ma P, Zhao T, Che D, Cao J, Wang J, Liu R, Zhang T, He L. Quercetin as a Lyn kinase inhibitor inhibits IgE-mediated allergic conjunctivitis. Food Chem Toxicol 2020; 135:110924. [DOI: 10.1016/j.fct.2019.110924] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/22/2019] [Accepted: 10/24/2019] [Indexed: 01/22/2023]
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Diverse exocytic pathways for mast cell mediators. Biochem Soc Trans 2018; 46:235-247. [PMID: 29472369 DOI: 10.1042/bst20170450] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 12/23/2017] [Accepted: 01/04/2018] [Indexed: 12/14/2022]
Abstract
Mast cells play pivotal roles in innate and adaptive immunities but are also culprits in allergy, autoimmunity, and cardiovascular diseases. Mast cells respond to environmental changes by initiating regulated exocytosis/secretion of various biologically active compounds called mediators (e.g. proteases, amines, and cytokines). Many of these mediators are stored in granules/lysosomes and rely on intricate degranulation processes for release. Mast cell stabilizers (e.g. sodium cromoglicate), which prevent such degranulation processes, have therefore been clinically employed to treat asthma and allergic rhinitis. However, it has become increasingly clear that different mast cell diseases often involve multiple mediators that rely on overlapping but distinct mechanisms for release. This review illustrates existing evidence that highlights the diverse exocytic pathways in mast cells. We also discuss strategies to delineate these pathways so as to identify unique molecular components which could serve as new drug targets for more effective and specific treatments against mast cell-related diseases.
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Song S, Lee SJ, Park DJ, Oh S, Lim KT. The anti-allergic activity of Lactobacillus plantarum L67 and its application to yogurt. J Dairy Sci 2016; 99:9372-9382. [DOI: 10.3168/jds.2016-11809] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 09/02/2016] [Indexed: 01/04/2023]
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Schopohl P, Grüneberg P, Melzig M. The influence of harpagoside and harpagide on TNFα-secretion and cell adhesion molecule mRNA-expression in IFNγ/LPS-stimulated THP-1 cells. Fitoterapia 2016; 110:157-65. [DOI: 10.1016/j.fitote.2016.03.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/04/2016] [Accepted: 03/05/2016] [Indexed: 01/13/2023]
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Lim SJ, Kim M, Randy A, Nho CW. Inhibitory effect of the branches of Hovenia dulcis Thunb. and its constituent pinosylvin on the activities of IgE-mediated mast cells and passive cutaneous anaphylaxis in mice. Food Funct 2016; 6:1361-70. [PMID: 25804702 DOI: 10.1039/c4fo01203h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hovenia dulcis Thunb. (Rhamnaceae) is a hardy tree native to Europe, the Middle East, and North Africa, and it is also grown in parts of Asia and has been used in traditional medicine to treat liver toxicity, stomach disorders, and inflammation. This study investigated the anti-allergy potential of an extract of the branches of H. dulcis (HDB) using the antigen-stimulated mast cell-like cell line rat basophilic leukemia (RBL)-2H3 and a passive cutaneous anaphylaxis (PCA) mouse model. Degranulation assay, reverse transcription PCR, enzyme-lined immunosorbent assays, western blot analyses, and PCA were performed to measure allergic responses and proinflammatory mediators in antigen-stimulated rat basophilic leukemia (RBL)-2H3 mast cells and the PCA mouse model. In antigen-stimulated RBL-2H3 cells, HDB inhibited the secretion of β-hexosaminidase (indicating the inhibition of degranulation) and histamine release; decreased expression and production of the inflammatory mediators, cyclooxygenase-2 and prostaglandin E2, and cytokines interleukin-4 and tumor necrosis factor-α; and suppressed activation of nuclear factor κB, a transcription factor involved in the response to cytokines. HDB attenuated phosphorylation of the mast cell downstream effectors Lyn, Syk, phospholipase Cγ, protein kinase Cμ, extracellular signal-regulated kinase and p38. In IgE-sensitized mice, HDB inhibited mast cell-dependent PCA. Furthermore, HDB contained pinosylvin and possessed significant anti-allergic activities. These results suggest that HDB would be of value in the prevention and treatment of allergic diseases.
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Affiliation(s)
- Sue Ji Lim
- Natural Products Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangwon 210-340, Korea.
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Kim M, Lim SJ, Lee HJ, Nho CW. Cassia tora Seed Extract and Its Active Compound Aurantio-obtusin Inhibit Allergic Responses in IgE-Mediated Mast Cells and Anaphylactic Models. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:9037-46. [PMID: 26434611 DOI: 10.1021/acs.jafc.5b03836] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Cassia tora seed is widely used due to its various biological properties including anticancer, antidiabetic, and anti-inflammatory effects. However, there has been no report of the effects of C. tora seed extract (CTE) on immunoglobulin E (IgE)-mediated allergic responses. In this research, we demonstrated the effects of CTE and its active compound aurantio-obtusin on IgE-sensitized allergic reactions in mast cells and passive cutaneous anaphylaxis (PCA). CTE and aurantio-obtusin suppressed degranulation, histamine production, and reactive oxygen species generation and inhibited the production and mRNA expression of tumor necrosis factor-α and interleukin-4. CTE and aurantio-obtusin also suppressed the prostaglandin E2 production and expression of cyclooxygenase 2. Furthermore, CTE and aurantio-obtusin suppressed IgE-mediated FcεRI signaling such as phosphorylation of Syk, protein kinase Cμ, phospholipase Cγ, and extracellular signal-regulated kinases. CTE and aurantio-obtusin blocked mast cell-dependent PCA in IgE-mediated mice. These results suggest that CTE and aurantio-obtusin are a beneficial treatment for allergy-related diseases.
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Affiliation(s)
- Myungsuk Kim
- Natural Products Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute , Gangwon, Korea
| | - Sue Ji Lim
- Natural Products Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute , Gangwon, Korea
| | - Hee-Ju Lee
- Natural Products Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute , Gangwon, Korea
| | - Chu Won Nho
- Natural Products Research Center, Korea Institute of Science and Technology (KIST) Gangneung Institute , Gangwon, Korea
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Chang YY, Hsu WH, Pan TM. Monascus secondary metabolites monascin and ankaflavin inhibit activation of RBL-2H3 cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:192-199. [PMID: 25525886 DOI: 10.1021/jf504013n] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Monascus-fermented products have been used as dietary food and traditional medicine due to their beneficial effects on circulation and digestive systems in Asia for thousands of years. Besides, monascin and ankaflavin, secondary metabolites from Monascus-fermented products, have proven anti-inflammatory and immunomodulatory effects. In previous research, monascin and ankaflavin ameliorated ovalbumin-induced airway allergic reaction often used as a type I allergy asthma model. Additionally, mast cells play critical roles in type I allergy. Therefore, RBL-2H3 cells were used as the mast cell model to determine whether the improving effects on asthma of monascin and ankaflavin came from influencing mast cells. PMA and ionomycin are common activators of mast cells because they stimulate the main signaling molecules during mast cell activation. Forty micromolar monascin and ankaflavin inhibited PMA/ionomycin-induced mast cell degranulation and TNF-α secretion through suppressing the phosphorylation of PKC and MAPK family ERK, JNK, and p38. Consequently, monascin and ankaflavin affected the activation of mast cells and may have the potential to improve type I allergy.
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Borriello F, Granata F, Varricchi G, Genovese A, Triggiani M, Marone G. Immunopharmacological modulation of mast cells. Curr Opin Pharmacol 2014; 17:45-57. [PMID: 25063971 DOI: 10.1016/j.coph.2014.07.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 07/02/2014] [Accepted: 07/04/2014] [Indexed: 12/31/2022]
Abstract
Mast cells produce a wide spectrum of mediators and they have been implicated in several physiopathological conditions (e.g. allergic reactions and certain tumors). Pharmacologic agents that modulate the release of mediators from mast cells has helped to elucidate the biochemical mechanisms by which immunological and non-immunological stimuli activate these cells. Furthermore, the study of surface receptors and signaling pathways associated with mast cell activation revealed novel pharmacologic targets. Thus, the development of pharmacologic agents based on this new wave of knowledge holds promise for the treatment of several mast cell-mediated disorders.
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Affiliation(s)
- Francesco Borriello
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, School of Medicine, Via Pansini 5, 80131 Naples, Italy
| | - Francescopaolo Granata
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, School of Medicine, Via Pansini 5, 80131 Naples, Italy
| | - Gilda Varricchi
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, School of Medicine, Via Pansini 5, 80131 Naples, Italy
| | - Arturo Genovese
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, School of Medicine, Via Pansini 5, 80131 Naples, Italy
| | - Massimo Triggiani
- Division of Allergy and Clinical Immunology, University of Salerno, School of Medicine, Salerno, Italy
| | - Gianni Marone
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples Federico II, School of Medicine, Via Pansini 5, 80131 Naples, Italy.
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Kim M, Lim SJ, Oidovsambuu S, Nho CW. Gnetin H isolated from Paeonia anomala inhibits FcεRI-mediated mast cell signaling and degranulation. JOURNAL OF ETHNOPHARMACOLOGY 2014; 154:798-806. [PMID: 24832111 DOI: 10.1016/j.jep.2014.05.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 05/05/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Paeonia anomala L. is used in Mongolian traditional medicine to treat various diseases including indigestion, abdominal pain, kidney disorders, inflammation, and female diseases. In this study we examined the effects of Paeonia anomala extract (PAE) and compounds derived from Paeonia anomala on immunoglobulin E (IgE)-mediated type I hypersensitivity responses in vitro. MATERIALS AND METHODS Degranulation assay, reverse transcription PCR, enzyme-lined immunosorbent assays, western blot analyses were performed to measure allergic and proinflammatory mediators in IgE-stimulated rat basophilic leukemia (RBL)-2H3 mast cells treated with or without PAE or gnetin H. RESULTS Seventeen compounds were isolated, and β-hexosaminidase release from IgE-stimulated RBL-2H3 mast cells was measured. Of the seventeen isolated compounds, gnetin H, a resveratrol derivative, significantly inhibited β-hexosaminidase release from RBL-2H3 cells with an IC50 value of 0.3 μM. Notably, Gnetin H reduced β-hexosaminidase release at lower concentrations than resveratrol. Furthermore, PAE and gnetin H inhibited histamine secretion, decreased the production and mRNA expression of tumor necrosis factor-α and interleukin-4 and suppressed translocation of nuclear factor κB. PAE and gnetin H also reduced the expression of cyclooxygenase-2 and production of prostaglandin E2. PAE and gnetin H suppressed the phosphorylation of Syk, protein kinase C (PKC)μ, phospholipase Cγ, and the mitogen-activated protein kinases, c-Jun N-terminal kinase, p38, and extracellular signal-regulated kinase. CONCLUSIONS These results suggest that PAE and its active compound gnetin H could be promising therapeutic agents for allergic disorders.
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Affiliation(s)
- Myungsuk Kim
- Functional Food Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangwon, Korea
| | - Sue Ji Lim
- Functional Food Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangwon, Korea; Department of chemistry, Gangneung-Wonju National University, Gangneung, Gangwon-do 210-702, Korea
| | - Sarangerel Oidovsambuu
- Functional Food Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangwon, Korea
| | - Chu Won Nho
- Functional Food Center, Korea Institute of Science and Technology (KIST) Gangneung Institute, Gangwon, Korea.
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Kim M, Lim SJ, Kang SW, Um BH, Nho CW. Aceriphyllum rossii extract and its active compounds, quercetin and kaempferol inhibit IgE-mediated mast cell activation and passive cutaneous anaphylaxis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:3750-3758. [PMID: 24702030 DOI: 10.1021/jf405486c] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Aceriphyllum rossii contains an abundant source of natural flavonoids with potential antioxidant, anticancer and anti-inflammatory properties. However, the effect of A. rossii extract (ARE) on immunoglobulin E(IgE)-mediated allergic responses remains unknown. In the present study, the effects of ARE and its active compounds, quercetin and kaempferol, on IgE-mediated rat basophilic leukemia mast cell activation and passive cutaneous anaphylaxis (PCA) were investigated. ARE, quercetin, and kaempferol inhibited secretion of β-hexosaminidase and histamine, and reduced the production and mRNA expression of interleukin-4 and tumor necrosis factor-α. ARE also decreased the production of prostaglandin E2 and leukotriene B4 and expression of cyclooxygenase 2 and 5-lipoxygenase. Furthermore, ARE, quercetin, and kaempferol inhibited IgE-mediated phosphorylation of Syk, phospholipase Cγ, protein kinase C (PKC)μ, and the mitogen-activated protein kinases, extracellular signal-regulated kinase, p38, and c-Jun N-terminal kinase. ARE, quercetin, and kaempferol markedly suppressed mast cell-dependent PCA in IgE-sensitized mice. These results indicate that ARE and its active constituents, quercetin and kaempferol, may be a useful therapy for immediate-type hypersensitivity.
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Affiliation(s)
- Myungsuk Kim
- Functional Food Center, Korea Institute of Science and Technology (KIST), Gangneung Institute , Gangwon Korea
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Wang Y, Hao W, Xing R, Di J, Zeng S, Liu J, Xing F. Ionomycin inhibits Jurkat T cell behaviors in the presence of phorbol-12,13-dibutyrate. Ann Hematol 2013; 93:735-46. [DOI: 10.1007/s00277-013-1955-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Accepted: 11/04/2013] [Indexed: 01/13/2023]
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Mast Cell Subsets and Their Functional Modulation by the Acanthocheilonema viteae Product ES-62. J Parasitol Res 2013; 2013:961268. [PMID: 23476740 PMCID: PMC3582060 DOI: 10.1155/2013/961268] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Accepted: 10/16/2012] [Indexed: 02/06/2023] Open
Abstract
ES-62, an immunomodulator secreted by filarial nematodes, exhibits therapeutic potential in mouse models of allergic inflammation, at least in part by inducing the desensitisation of FcεRI-mediated mast cell responses. However, in addition to their pathogenic roles in allergic and autoimmune diseases, mast cells are important in fighting infection, wound healing, and resolving inflammation, reflecting that mast cells exhibit a phenotypic and functional plasticity. We have therefore characterised the differential functional responses to antigen (via FcεRI) and LPS and their modulation by ES-62 of the mature peritoneal-derived mast cells (PDMC; serosal) and those of the connective tissue-like mast cells (CTMC) and the mucosal-like mast cells derived from bone marrow progenitors (BMMC) as a first step to produce disease tissue-targeted therapeutics based on ES-62 action. All three mast cell populations were rendered hyporesponsive by ES-62 and whilst the mechanisms underlying such desensitisation have not been fully delineated, they reflect a downregulation of calcium and PKCα signalling. ES-62 also downregulated MyD88 and PKCδ in mucosal-type BMMC but not PDMC, the additional signals targeted in mucosal-type BMMC likely reflecting that these cells respond to antigen and LPS by degranulation and cytokine secretion whereas PDMC predominantly respond in a degranulation-based manner.
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Onose JI, Yoshioka Y, Ye YQ, Sugaya K, Yajima A, Taniguchi K, Okada K, Yajima S, Takahashi S, Koshino H, Abe N. Inhibitory effects of vialinin A and its analog on tumor necrosis factor-α release and production from RBL-2H3 cells. Cell Immunol 2012; 279:140-4. [DOI: 10.1016/j.cellimm.2012.10.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 09/13/2012] [Accepted: 10/11/2012] [Indexed: 12/25/2022]
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Choi Y, Kim MS, Hwang JK. Inhibitory Effects of Panduratin A on Allergy-Related Mediator Production in Rat Basophilic Leukemia Mast Cells. Inflammation 2012; 35:1904-15. [DOI: 10.1007/s10753-012-9513-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Chen HJ, Lo YC, Chiang W. Inhibitory effects of adlay bran (Coix lachryma-jobi L. var. ma-yuen Stapf) on chemical mediator release and cytokine production in rat basophilic leukemia cells. JOURNAL OF ETHNOPHARMACOLOGY 2012; 141:119-127. [PMID: 22353428 DOI: 10.1016/j.jep.2012.02.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Revised: 02/03/2012] [Accepted: 02/06/2012] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Adlay (Job's tears, Coix lachryma-jobi L. var. ma-yuen Stapf) has long been used in China to treat rheumatism. AIM OF THE STUDY We investigated the anti-allergic effects of adlay bran on rat basophilic leukemia (RBL)-2H3 cells. MATERIALS AND METHODS To evaluate the anti-allergic effects of adlay bran, the release of histamines and cytokines were measured using ELISA. To explore the mechanism of these effects, the protein expression levels were determined using western blotting. RESULTS A 40.8μg/mL concentration of the ethyl acetate fraction of the ethanolic extracts of adlay bran (ABE-EtOAc) effectively inhibited mast cell degranulation. The 40-100% EtOAc/Hex subfractions of ABE-EtOAc inhibited histamine release with an IC(50) of 71-87μg/mL. Moreover, the ABE-EtOAc subfractions suppressed the secretion of interleukin (IL)-4, IL-6 and tumor necrosis factor-α in the RBL-2H3 cells, indicating that adlay bran can inhibit cytokine secretion in the late phase of the allergic reaction. In addition, adlay bran reduced the intracellular production of reactive oxygen species, inhibited the phosphorylation of Akt and decreased the expression of protein kinase C. Furthermore, six phenolic acids and one flavone were isolated. Of these compounds, luteolin showed the most potent inhibitory activity (IC(50)=1.5μg/mL). CONCLUSION Adlay bran extract reduced the release of histamines and cytokines and suppressed the production of Akt. These combined effects influenced the signal transduction in RBL-2H3 cells, thereby revealing the mechanisms of the anti-allergic effects of adlay.
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Affiliation(s)
- Hong-Jhang Chen
- Graduate Institute of Food Science and Technology, College of Bioresources and Agriculture, National Taiwan University, Taipei, Taiwan
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IgE, COX-2, and IL-4 are expressed by DEHP through p38 MAPK and suppressed by plant glycoprotein (75 kDa) in ICR mice. Inflammation 2012; 34:326-34. [PMID: 20686831 DOI: 10.1007/s10753-010-9238-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The aim of the present study was to evaluate the inhibitory effect of glycoprotein isolated from Cudrania tricuspidata Bureau (CTB glycoprotein) on di(2-ethylhexyl) phthalate (DEHP)-induced allergic inflammatory response in mice. We evaluated the activity of β-hexosaminidase, expression of cyclooxygenase (COX)-2, p38 mitogen-activated protein kinase (MAPK), and activator protein (AP)-1, and production of immunoglobulin (Ig)E and interleukin (IL)-4 in DEHP-treated RBL-2H3 cells and ICR mice. Our results revealed that the CTB glycoprotein inhibited the activity of β-hexosaminidase and production of IgE and IL-4 in serum from DEHP-treated mice. We also found that the CTB glycoprotein reduced arachidonic acid release, COX-2 expression, and AP-1 transcriptional activation through p38 MAPK phosphorylation in DEHP-treated RBL-2H3 cells. The activation of AP-1 was completely blocked by treatment with p38 MAPK inhibitor (SKF86002). The results from these experiments indicate that CTB glycoprotein effectively protects against the allergic inflammation response, mainly through downregulation of MAPK/AP-1 in the mast cell degranulation stage. In conclusion, we suggest that the CTB glycoprotein may be one component of health supplements for the prevention of allergic inflammation.
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Fernández-Taboada E, Rodríguez-Esteban G, Saló E, Abril JF. A proteomics approach to decipher the molecular nature of planarian stem cells. BMC Genomics 2011; 12:133. [PMID: 21356107 PMCID: PMC3058083 DOI: 10.1186/1471-2164-12-133] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Accepted: 02/28/2011] [Indexed: 01/07/2023] Open
Abstract
Background In recent years, planaria have emerged as an important model system for research into stem cells and regeneration. Attention is focused on their unique stem cells, the neoblasts, which can differentiate into any cell type present in the adult organism. Sequencing of the Schmidtea mediterranea genome and some expressed sequence tag projects have generated extensive data on the genetic profile of these cells. However, little information is available on their protein dynamics. Results We developed a proteomic strategy to identify neoblast-specific proteins. Here we describe the method and discuss the results in comparison to the genomic high-throughput analyses carried out in planaria and to proteomic studies using other stem cell systems. We also show functional data for some of the candidate genes selected in our proteomic approach. Conclusions We have developed an accurate and reliable mass-spectra-based proteomics approach to complement previous genomic studies and to further achieve a more accurate understanding and description of the molecular and cellular processes related to the neoblasts.
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Affiliation(s)
- Enrique Fernández-Taboada
- Departament de Genètica and Institute of Biomedicine, Universitat de Barcelona, Avenida Diagonal 645, Barcelona, Catalonia, Spain
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Horii M, Shinohara H, Iribe Y, Suzuki M. Living cell-based allergen sensing using a high resolution two-dimensional surface plasmon resonance imager. Analyst 2011; 136:2706-11. [DOI: 10.1039/c0an00874e] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Oh PS, Lim KT. Anti-inflammatory effect of glycoprotein isolated from Cudrania tricuspidata Bureau: involvement of MAPK/NF-κB signaling. Immunol Invest 2010; 40:76-91. [PMID: 20923328 DOI: 10.3109/08820139.2010.516049] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The aim of this study was to evaluate inhibitory effect of glycoprotein isolated from Cudrania tricuspidata Bureau (CTB glycoprotein) on allergic responses. We evaluated the activities of mitogen-activated protein kinase (MAPK), transcriptional factor, and production of immunoglobulin (Ig)E and interleukin (IL)-4 in RBL-2H3 cells and BALB/c mice. Our results showed that CTB glycoprotein inhibited the production of IgE and IL-4 in serum from ovalbumin (OVA)-treated BALB/c mice. We also found that CTB glycoprotein inhibited the phosphorylation of p38 MAPK, and transcriptional activation of nuclear factor (NF)-κB in RBL-2H3 cells. The activation of NF-κB was effectively blocked by treatment with p38 MAPK inhibitor (SKF86002). The results from these experiments indicate that the CTB glycoprotein inhibits release of β-hexosaminidase, and production of IgE and IL-4 via down regulation of MAPK/ NF-κB on the stage of mast cell degranulation. In conclusion, we suggest that the CTB glycoprotein might be a potent preventive agent in allergic responses.
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Affiliation(s)
- Phil-Sun Oh
- Molecular Biochemistry Laboratory, Biotechnology Research Institute and Center for the Control of Animal Hazards Using Biotechnology (BK21), Chonnam National University, Gwang-ju 500-757, South Korea
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Yanase Y, Hide I, Mihara S, Shirai Y, Saito N, Nakata Y, Hide M, Sakai N. A critical role of conventional protein kinase C in morphological changes of rodent mast cells. Immunol Cell Biol 2010; 89:149-59. [PMID: 20498673 DOI: 10.1038/icb.2010.67] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In mast cells, crosslinking the high-affinity IgE receptor (FcɛRI) results in a dynamic reorganization of the actin cytoskeleton that is associated with membrane ruffling. Although the signaling involved in degranulation has been well described, it is less understood in morphological changes. In this study, we investigated the specific role of conventional protein kinase C (cPKC), a crucial signal for degranulation, in antigen-induced membrane ruffling of mast cells. In RBL-2H3 mast cells, antigen induced a long-lasting membrane ruffling, which was blocked with late-added Gö6976, a specific cPKC inhibitor, indicating that sustained activation of cPKC is required for maintaining the reaction. Immunofluorescence staining of endogenous PKCα/β and real-time imaging of transfected green fluorescent protein-tagged PKCα/β demonstrated that in response to antigen both PKCα and PKCβI quickly translocated to the plasma membrane and were colocalized with actin filaments at the ruffling sites. These reactions were blocked by expression of kinase-negative PKCβI, but not kinase-negative PKCα, and by treatment with a specific PKCβ inhibitor, LY333531. The adhesion, spreading and membrane ruffling of mouse bone marrow-derived mast cells (BMMCs), which are mostly nonadhesive, were promoted by both antigen and thymeleatoxin. Treatment with Gö6976 abolished all these reactions. Antigen-mediated migration of BMMC was also sensitive to Gö6076 and LY333531. In addition, BMMC adhesion by and migration toward stem cell factor were shown to be dependent on cPKC. Thus, cPKC, at least PKCβ subtype, may be critical for the dynamic morphological changes that lead to the migration of mast cells.
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Affiliation(s)
- Yuhki Yanase
- Department of Molecular and Pharmacological Neuroscience, Graduate School of Biomedical Sciences, Hiroshima University, Hiroshima, Japan
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22
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Oh PS, Lim KT. Modulatory effects of phytoglycoprotein (75 kDa) on allergic inflammatory cytokines in Di(2-ethylhexyl) phthalate (DEHP)-stimulated RBL-2H3 cells. J Cell Biochem 2010; 109:124-31. [PMID: 19885859 DOI: 10.1002/jcb.22389] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
This study investigated the inhibitory effect of a glycoprotein isolated from Cudrania tricuspidata Bureau (CTB glycoprotein) on di(2-ethylhexyl) phthalate (DEHP)-induced mast cell degranulation and related signaling cascade in RBL-2H3 cells. This experiment evaluated the intracellular Ca(2+) level, and the activities of protein kinase C (PKC), mitogen-activated protein kinase (MAPK), transcription factor, and the cytokines in DEHP-treated RBL-2H3 cells. Our results revealed that the CTB glycoprotein in the presence of DEHP inhibits the release of histamine and expression of interleukin (IL)-4, IL-6, and TNF-alpha in RBL-2H3 cells. We also found that the CTB glycoprotein inhibits the intracellular Ca(2+) level, translocation of PKC from cytosol to membrane and the phosphorylation of ERK1/2 in cells. Moreover, the CTB glycoprotein (100 microg/ml) has suppressive effects on transcriptional activation of nuclear factor (NF)-kappaB in DEHP-treated RBL-2H3 cells. The activation of NF-kappaB was collectively blocked by treatment with PKC inhibitor (staurosporine) as well as ERK1/2 inhibitor (PD98059), respectively. The results from these experiments indicated that the CTB glycoprotein inhibits release of histamine and expressions of IL-4, IL-6, and TNF-alpha via down regulations of PKC/MAPK and NF-kappaB on the stage of mast cell degranulation induced by DEHP. Moreover, oral administration of CTB glycoprotein (10-20 mg/kg) inhibited compound 48/80-mediated systemic reaction in mice. In conclusion, we speculated that the CTB glycoprotein might be one component for preparation of health supplements for prevention of allergic immune disorders.
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Affiliation(s)
- Phil-Sun Oh
- Molecular Biochemistry Laboratory, Biotechnology Research Institute and Center for the Control of Animal Hazards Using Biotechnology (BK21), Chonnam National University, 300 Yongbong-Dong, Gwang-ju 500-757, South Korea
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23
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Park CH, Lim KT. Phytoglycoprotein (75 kDa) Suppresses Release of Histamine and Expression of IL-4 and IFN- γ in BPA-treated RBL-2H3 Cells. Immunol Invest 2010; 39:171-85. [DOI: 10.3109/08820130903513449] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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24
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Ro JY, Han YN, Choi KT, Lee CH. Effects of 20(S)-Protopanaxadiol and 20(S)-Protopanaxatriol on the Inflammatory Mediators Release from the Activated Mast Cells. J Ginseng Res 2009. [DOI: 10.5142/jgr.2009.33.4.316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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25
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Yamashita K, Gon Y, Shimokawa T, Nunomura S, Endo D, Miyata N, Hashimoto S, Van Lint J, Ra C. High affinity receptor for IgE stimulation activates protein kinase D augmenting activator protein-1 activity for cytokine producing in mast cells. Int Immunopharmacol 2009; 10:277-83. [PMID: 19932769 DOI: 10.1016/j.intimp.2009.11.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Accepted: 11/18/2009] [Indexed: 10/20/2022]
Abstract
Protein kinase D (PKD) is a serine-threonine kinase involved in the activation of a variety of cells. In mast cells, activation of PKD by cross-linking of high affinity receptor for IgE (FcepsilonRI) has been reported, but little is known for its effects on cytokine production. We investigated the roles of PKD on FcepsilonRI-induced activator protein-1 (AP-1) activation and proinflammatory cytokine productions in mast cells. Pharmacological inhibition of PKD strongly inhibited production of interleukin (IL)-13 and tumor necrosis factor (TNF)-alpha induced by FcepsilonRI stimulation, and the overexpression of PKD significantly increased the IL-13 and TNF-alpha production. Reporter assay revealed that the overexpression of PKD enhanced FcepsilonRI-induced IL-13 promoter activation, and that the 5'-flanking region of IL-13 gene from positions -110 to -52 was under the regulation of PKD. The overexpression of PKD enhanced the induction of AP-1 luciferase activity by FcepsilonRI stimulation, while it had no effect on luciferase activities dependent upon NF-kappaB and NF-AT activated by FcepsilonRI stimulation. In EMSA, c-Jun and c-Fos appear to be the major components of AP-1 complexes activated by FcepsilonRI stimulation. Moreover the overexpression of PKD strongly enhanced the phosphorylation of both c-Jun and c-Fos following FcepsilonRI stimulation. Although stress-activated protein kinase/c-Jun N-terminal kinase (JNK) is known to be an important regulator for c-Jun phosphorylation and AP-1 activation, overexpression and inhibition of PKD had no effects on JNK phosphorylation. These results suggest that PKD may play a pivotal role in FcepsilonRI-induced cytokine production in mast cells through the activation of c-Jun, c-Fos, and AP-1.
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Affiliation(s)
- Kyoko Yamashita
- Department of Molecular Cell Immunology and Allergology, Nihon University School of Medical Science, Tokyo, Japan
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26
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Kalokasidis K, Molyva D, Mirtsou V, Kokkas B, Goulas A. Evidence for the contribution of tumour necrosis factor in oedema formation induced by histamine in the hind paw of the rat. Inflamm Res 2009; 58:437-40. [DOI: 10.1007/s00011-009-0047-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Revised: 04/16/2009] [Accepted: 04/19/2009] [Indexed: 12/23/2022] Open
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27
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Reddy ABM, Ramana KV, Srivastava S, Bhatnagar A, Srivastava SK. Aldose reductase regulates high glucose-induced ectodomain shedding of tumor necrosis factor (TNF)-alpha via protein kinase C-delta and TNF-alpha converting enzyme in vascular smooth muscle cells. Endocrinology 2009; 150:63-74. [PMID: 18772236 PMCID: PMC2630901 DOI: 10.1210/en.2008-0677] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Chronic low-grade inflammation has emerged as a key contributor to the cardiovascular complications of diabetes, however, the mechanisms by which diabetes increases inflammation remain poorly understood. Here, we report that exposure to high glucose (HG) stimulates ectodomain shedding of TNF-alpha from rat aortic smooth muscle cells in culture. Our results show that exposure to HG decreases membrane-associated TNF-alpha. This decrease in unprocessed TNF-alpha was prevented by the aldose reductase (AR) inhibitor sorbinil and AR small interference RNA. Treatment with HG, but not equimolar mannitol or 3-O-methyl glucose, resulted in phosphorylation and activation of TNF-alpha converting enzyme (TACE) (ADAM17), which were attenuated by sorbinil or AR-specific small interference RNA. HG-induced TACE phosphorylation and TNF-alpha processing were also prevented by TNF-alpha protease inhibitor-1, an inhibitor of TACE. Inhibition of protein kinase C (PKC)-delta by rottlerin prevented HG-induced TACE activation and the accumulation of unprocessed TNF-alpha. Treatment with sorbinil decreased elevated levels of circulating TNF-alpha in streptozotocin-treated diabetic rats. Sorbinil treatment also decreased the expression of TNF-alpha, matrix metalloproteinase-2, matrix metalloproteinase-9, and increased tissue inhibitor of metalloproteinase-3 in vascular smooth muscle cells treated with HG and in balloon-injured carotid arteries of diabetic rats. These results indicate that HG-induced TNF-alpha shedding could be attributed to TACE activation, which is regulated, in part, by PKC-delta and AR. Therefore, inhibition of TACE by TNF-alpha protease inhibitor-1, or pharmacological inhibition of PKC-delta or AR may represent useful strategies for treating vascular inflammation associated with diabetes.
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Affiliation(s)
- Aramati B M Reddy
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, 301 University Boulevard, Galveston, Texas 77555-0647, USA
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28
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Yae E, Yahara S, El-Aasr M, Ikeda T, Yoshimitsu H, Masuoka C, Ono M, Hide I, Nakata Y, Nohara T. Studies on the Constituents of Whole Plants of Youngia japonica. Chem Pharm Bull (Tokyo) 2009; 57:719-23. [DOI: 10.1248/cpb.57.719] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Emiko Yae
- Faculty of Medical and Pharmaceutical Sciences, Kumamoto University
| | - Shoji Yahara
- Faculty of Medical and Pharmaceutical Sciences, Kumamoto University
| | - Mona El-Aasr
- Faculty of Medical and Pharmaceutical Sciences, Kumamoto University
| | - Tsuyoshi Ikeda
- Faculty of Medical and Pharmaceutical Sciences, Kumamoto University
| | | | | | | | - Izumi Hide
- Graduate School of Biomedical Sciences, Hiroshima University
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29
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Kato N, Motohashi S, Okada T, Ozawa T, Mashima K. PICOT, protein kinase C theta-interacting protein, is a novel regulator of FcepsilonRI-mediated mast cell activation. Cell Immunol 2008; 251:62-7. [PMID: 18479680 DOI: 10.1016/j.cellimm.2008.04.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2008] [Revised: 04/01/2008] [Accepted: 04/04/2008] [Indexed: 11/29/2022]
Abstract
PICOT (PKC-interacting cousin of thioredoxin) consists of one thioredoxin homology domain in the N-terminal and two tandem PICOT homology domains in the C-terminal. PICOT specifically interacts with protein kinase C theta (PKC-theta) via its thioredoxin homology domain and acts as an important modulator of T cell receptor (TCR)-signaling. Using PICOT overexpressing rat basophilic leukemia cells (RBL-2H3), we evaluated the effect of PICOT overexpression on the FcepsilonRI-mediated signaling. In comparison to the control cells, introduction of PICOT to RBL-2H3 cells induced increased degranulation and the activation of NFAT and in the expression of IL-4 and TNF-alpha transcripts by FcepsilonRI-crosslinking, whereas no significant change was observed with the elevation of ERK1/2 and p38 MAP kinase phosphorylation and NF-kappaB activation by FcepsilonRI aggregation. More interesting was the exogenous PICOT overexpression in RBL-2H3 cells causing a large decrease in the elevation of JNK phosphorylation. PICOT-regulated FcepsilonRI-mediated signals in RBL-2H3 cells and acted as a positive regulator on IL-4 and TNF-alpha expression, NFAT and degranulation signal pathways and a negative regulator on a JNK signal pathway. Considering that PICOT has no enzymatic activity, the regulation of PICOT on FcepsilonRI-signaling may depend on PICOT-associated molecule(s).
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Affiliation(s)
- Natsumi Kato
- Department of Life Science, Rikkyo (St. Paul's) University, 3-34-1, Nishi-ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
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30
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Asano K, Kanai KI, Furuta A, Furuya A, Suzaki H, Hisamitsu T. Suppressive activity of fexofenadine hydrochloride on nitric oxide production in-vitro and in-vivo. J Pharm Pharmacol 2007; 59:1389-95. [PMID: 17910814 DOI: 10.1211/jpp.59.10.0009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The aim of this study was to examine the effect of fexofenadine hydrochloride (FEX), a histamine H1-receptor antagonist, on nitric oxide (NO) production in-vitro and in-vivo. Nasal fibroblasts (5 x 10(5) cells per mL) were stimulated with 25 ng mL(-1) tumour necrosis factor-alpha in the presence of various concentrations of FEX. NO levels in 24-h-culture supernatants were measured by the Griess method and levels of inducible nitric oxide synthase (iNOS) mRNA levels in 12-h-cultured cells were measured by ELISA. FEX at more than 0.5 microg mL(-1) suppressed NO production from fibroblasts by inhibiting expression of iNOS mRNA. We also examined whether FEX could suppress NO production induced by lipopolysaccharide (LPS) stimulation in-vivo. BALB/c mice were treated with 5.0 mg kg(-1) LPS i.p. after daily oral doses of FEX, 1.0 mg kg(-1), for 1-3 weeks. Plasma was obtained 6 h later and NO levels measured by the Griess method. Expression of iNOS mRNA in lung tissues was measured by ELISA 6 h after LPS injection. Oral administration of FEX for 2 and 3 weeks, but not 1 week, significantly suppressed NO levels in plasma through the inhibition of iNOS mRNA expression, which were enhanced by LPS stimulation. These results suggest that the attenuating effect of FEX on NO production may be of therapeutic benefit in allergic diseases.
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Affiliation(s)
- Kazuhito Asano
- Department of Physiology, School of Medicine, Showa University, Tokyo, Japan.
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31
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Inhibition of Fc epsilon RI-mediated mast cell responses by ES-62, a product of parasitic filarial nematodes. Nat Med 2007; 13:1375-81. [PMID: 17952092 DOI: 10.1038/nm1654] [Citation(s) in RCA: 158] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2007] [Accepted: 08/21/2007] [Indexed: 12/17/2022]
Abstract
Atopic allergy is characterized by an increase in IgE antibodies that signal through the high-affinity Fcepsilon receptor (FcepsilonRI) to induce the release of inflammatory mediators from mast cells. For unknown reasons, the prevalence of allergic diseases has recently increased steeply in the developed world. However, this increase has not been mirrored in developing countries, even though IgE concentrations are often greatly elevated in individuals from these countries, owing to nonspecific IgE induction by universally present parasitic worms. Here we offer one explanation for this paradox based on the properties of ES-62, a molecule secreted by filarial nematodes. We found that highly purified, endotoxin-free ES-62 directly inhibits the FcepsilonRI-induced release of allergy mediators from human mast cells by selectively blocking key signal transduction events, including phospholipase D-coupled, sphingosine kinase-mediated calcium mobilization and nuclear factor-kappaB activation. ES-62 mediates these effects by forming a complex with Toll-like receptor 4, which results in the sequestration of protein kinase C-alpha (PKC-alpha). This causes caveolae/lipid raft-mediated, proteasome-independent degradation of PKC-alpha, a molecule important for the coupling of FcepsilonRI to phospholipase D and mast cell activation. We also show that ES-62 is able to protect mice from mast cell-dependent hypersensitivity in the skin and lungs, indicating that it has potential as a novel therapeutic for allergy.
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32
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Tkaczyk C, Jensen BM, Iwaki S, Gilfillan AM. Adaptive and innate immune reactions regulating mast cell activation: from receptor-mediated signaling to responses. Immunol Allergy Clin North Am 2007; 26:427-50. [PMID: 16931287 DOI: 10.1016/j.iac.2006.05.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this article, we have described studies that have demonstrated that mast cells can be activated as a consequence of adaptive and innate immune reactions and that these responses can be modified by ligands for other receptors expressed on the surface of mast cells. These various stimuli differentially activate multiple signaling pathways within the mast cells required for the generation and/or release of inflammatory mediators. Thus, the composition of the suite of mediators released and the physiologic ramifications of these responses are dependent on the stimuli and the microenvironment in which the mast cells are activated. Knowledge of the different signaling molecules used by cell surface receptors may allow selective pharmacologic targeting such that inhibiting the adverse effects of mast cell activation can be achieved without influencing the beneficial effects of mast cell activation. The exact interconnections between the signaling pathways initiated by the surface receptors described in this article remain to be completely worked out; thus, this remains a topic for future investigation.
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Affiliation(s)
- Christine Tkaczyk
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Building 10, Room 11C206, 10 Center Drive, MSC 1881, Bethesda, MD 20892, USA
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33
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Yasui Y, Nakamura M, Onda T, Uehara T, Murata S, Matsui N, Fukuishi N, Akagi R, Suematsu M, Akagi M. Heme oxygenase-1 inhibits cytokine production by activated mast cells. Biochem Biophys Res Commun 2007; 354:485-90. [PMID: 17234154 DOI: 10.1016/j.bbrc.2006.12.228] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2006] [Accepted: 12/29/2006] [Indexed: 01/20/2023]
Abstract
Heme oxygenase-1 (HO-1) is thought to contribute to host defense reactions against various stresses. In addition, recent reports have suggested that HO-1 modulates immunocyte activation and functions. HO-1 suppresses mast cell degranulation, but whether HO-1 suppresses cytokine synthesis as well is not yet known. We examined whether rat HO-1 cDNA transfected rat basophilic leukemia (RBL)-2H3 cells have altered cytokine production in response to stimulation with anti-ovalbumin (OA) serum/OA compared to Mock transfected RBL-2H3 cells. HO-1 inhibited anti-OA serum/OA-induced IL-3 and TNF-alpha production. Inhibition of HO-1 activity by Zn (II) protoporphyrin IX, a specific HO-1 inhibitor, prevented the suppression of TNF-alpha production. The cytokine inhibition by HO-1 was associated with selective suppression of the DNA-binding activity of AP-1 transcription factors. The suppression of mast cell cytokine production by HO-1 may be an important aspect of the processes that lead to resolution of allergic inflammation.
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Affiliation(s)
- Yumiko Yasui
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-bouji, Tokushima-shi, Tokushima 770-8514, Japan.
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34
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Gallegos LL, Kunkel MT, Newton AC. Targeting Protein Kinase C Activity Reporter to Discrete Intracellular Regions Reveals Spatiotemporal Differences in Agonist-dependent Signaling. J Biol Chem 2006; 281:30947-56. [PMID: 16901905 DOI: 10.1074/jbc.m603741200] [Citation(s) in RCA: 157] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Protein kinase C (PKC) family members transduce an abundance of diverse intracellular signals. Here we address the role of spatial and temporal segregation in signal specificity by measuring the activity of endogenous PKC at defined intracellular locations in real time in live cells. We targeted a genetically encoded fluorescence resonance energy transfer-based reporter for PKC activity, C kinase activity reporter (CKAR) (Violin, J. D., Zhang, J., Tsien, R. Y., and Newton, A. C. (2003) J. Cell Biol. 161, 899-909), to the plasma membrane, Golgi, cytosol, mitochondria, or nucleus by fusing appropriate targeting sequences to the NH2 or COOH terminus of CKAR. Measuring the phosphorylation of the reporter in the presence of PKC inhibitors, activators, and/or phosphatase inhibitors shows that activity at each region is under differential control by phosphatase activity; nuclear activity is completely suppressed by phosphatases, whereas membrane-associated activity is the least suppressed by phosphatases. UTP stimulation of endogenous P2Y receptors in COS 7 cells reveals spatiotemporally divergent PKC responses. Imaging the second messengers Ca2+ and diacylglycerol (DAG) reveal that PKC activity at each location is driven by an initial spike in Ca2+, followed by location-specific diacylglycerol generation. In response to UTP, phosphorylation of GolgiCKAR was sustained the longest, driven by the persistence of DAG, whereas phosphorylation of CytoCKAR was of the shortest duration, driven by high phosphatase activity. Our data reveal that the magnitude and duration of PKC signaling is location-specific and controlled by the level of phosphatase activity and persistence of DAG at each location.
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Affiliation(s)
- Lisa L Gallegos
- Department of Pharmacology, University of California at San Diego, La Jolla, California 92093, USA
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Strozyk E, Pöppelmann B, Schwarz T, Kulms D. Differential effects of NF-kappaB on apoptosis induced by DNA-damaging agents: the type of DNA damage determines the final outcome. Oncogene 2006; 25:6239-51. [PMID: 16702954 DOI: 10.1038/sj.onc.1209655] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The transcription factor nuclear factor kappa-B (NF-kappaB) is generally regarded as an antiapoptotic factor. Accordingly, NF-kappaB activation inhibits death ligand-induced apoptosis. In contrast, ultraviolet light B (UVB)-induced apoptosis is not inhibited but even enhanced upon NF-kappaB activation by interleukin-1 (IL-1). This study was performed to identify the molecular mechanisms underlying this switch of NF-kappaB. Enhancement of UVB-induced apoptosis was always associated with increased release of tumour necrosis factor-alpha (TNF-alpha), which was dependent on NF-kappaB activation. The same was observed when UVA and cisplatin were used, which like UVB induce base modifications. In contrast, apoptosis caused by DNA strand breaks was not enhanced by IL-1, indicating that the type of DNA damage is critical for switching the effect of NF-kappaB on apoptosis. Surprisingly, activated NF-kappaB induced TNF-alpha mRNA expression in the presence of all DNA damage-inducing agents. However, in the presence of DNA strand breaks, there was no release of the TNF-alpha protein, which is so crucial for enhancing apoptosis. Together, this indicates that induction of DNA damage may have a significant impact on biological effects but it is the type of DNA damage that determines the final outcome. This may have implications for the role of NF-kappaB in carcinogenesis and for the application of NF-kappaB inhibitors in anticancer therapy.
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Affiliation(s)
- E Strozyk
- Department of Dermatology, University of Muenster, Muenster, Germany
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36
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Klemm S, Gutermuth J, Hültner L, Sparwasser T, Behrendt H, Peschel C, Mak TW, Jakob T, Ruland J. The Bcl10-Malt1 complex segregates Fc epsilon RI-mediated nuclear factor kappa B activation and cytokine production from mast cell degranulation. ACTA ACUST UNITED AC 2006; 203:337-47. [PMID: 16432253 PMCID: PMC2118204 DOI: 10.1084/jem.20051982] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Mast cells are pivotal effector cells in IgE-mediated allergic inflammatory diseases. Central for mast cell activation are signals from the IgE receptor FcɛRI, which induce cell degranulation with the release of preformed mediators and de novo synthesis of proinflammatory leukotrienes and cytokines. How these individual mast cell responses are differentially controlled is still unresolved. We identify B cell lymphoma 10 (Bcl10) and mucosa-associated lymphoid tissue 1 (Malt1) as novel key regulators of mast cell signaling. Mice deficient for either protein display severely impaired IgE-dependent late phase anaphylactic reactions. Mast cells from these animals neither activate nuclear factor κB (NF-κB) nor produce tumor necrosis factor α or interleukin 6 upon FcɛRI ligation even though proximal signaling, degranulation, and leukotriene secretion are normal. Thus, Bcl10 and Malt1 are essential positive mediators of FcɛRI-dependent mast cell activation that selectively uncouple NF-κB–induced proinflammatory cytokine production from degranulation and leukotriene synthesis.
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Affiliation(s)
- Stefanie Klemm
- Third Medical Department, Klinikum rechts der Isar, Technical University of Munich, 81675 Munich, Germany
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