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Wang L, Fang Y, Ma Y, Zhao Z, Ma R, Zhang Y, Qiao Y, Wang X, Zhang Y. A novel natural Syk inhibitor suppresses IgE-mediated mast cell activation and passive cutaneous anaphylaxis. Bioorg Chem 2024; 146:107320. [PMID: 38569323 DOI: 10.1016/j.bioorg.2024.107320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/20/2024] [Accepted: 03/28/2024] [Indexed: 04/05/2024]
Abstract
Spleen tyrosine kinase (Syk) plays a crucial role as a target for allergy treatment due to its involvement in immunoreceptor signaling. The purpose of this study was to identify natural inhibitors of Syk and assess their effects on the IgE-mediated allergic response in mast cells and ICR mice. A list of eight compounds was selected based on pharmacophore and molecular docking, showing potential inhibitory effects through virtual screening. Among these compounds, sophoraflavanone G (SFG) was found to inhibit Syk activity in an enzymatic assay, with an IC50 value of 2.2 μM. To investigate the conformational dynamics of the SYK-SFG system, we performed molecular dynamics simulations. The stability of the binding between SFG and Syk was evaluated using root mean square deviation (RMSD) and root mean square fluctuation (RMSF). In RBL-2H3 cells, SFG demonstrated a dose-dependent suppression of IgE/BSA-induced mast cell degranulation, with no significant cytotoxicity observed at concentrations below 10.0 μM within 24 h. Furthermore, SFG reduced the production of TNF-α and IL-4 in RBL-2H3 cells. Mechanistic investigations revealed that SFG inhibited downstream signaling proteins, including phospholipase Cγ1 (PLCγ1), as well as mitogen-activated protein kinases (AKT, Erk1/2, p38, and JNK), in mast cells in a dose-dependent manner. Passive cutaneous anaphylaxis (PCA) experiments demonstrated that SFG could reduce ear swelling, mast cell degranulation, and the expression of COX-2 and IL-4. Overall, our findings identify naturally occurring SFG as a direct inhibitor of Syk that effectively suppresses mast cell degranulation both in vitro and in vivo.
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Affiliation(s)
- Lele Wang
- Key Laboratory of Ethnomedicine in Ministry of Education, School of Pharmacy, Minzu University of China, Haidian District, Beijing 100081, China
| | - Yuzhen Fang
- Key Laboratory of Ethnomedicine in Ministry of Education, School of Pharmacy, Minzu University of China, Haidian District, Beijing 100081, China
| | - Yuqing Ma
- Beijing Key Lab of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Fengtai District, Beijing 100069, China
| | - Zixi Zhao
- Beijing Key Lab of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Fengtai District, Beijing 100069, China
| | - Ruonan Ma
- Beijing Key Lab of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Fengtai District, Beijing 100069, China
| | - Yanling Zhang
- Key Laboratory of TCM-information Engineer of State Administration of TCM, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yanjiang Qiao
- Key Laboratory of TCM-information Engineer of State Administration of TCM, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 102488, China.
| | - Xing Wang
- Beijing Key Lab of Traditional Chinese Medicine Collateral Disease Theory Research, School of Traditional Chinese Medicine, Capital Medical University, Fengtai District, Beijing 100069, China.
| | - Yuxin Zhang
- Key Laboratory of Ethnomedicine in Ministry of Education, School of Pharmacy, Minzu University of China, Haidian District, Beijing 100081, China.
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Oka M, Akaki S, Ohno O, Terasaki M, Hamaoka-Tamura Y, Saito M, Kato S, Inoue A, Aoki J, Matsuno K, Furuta K, Tanaka S. Suppression of Mast Cell Activation by GPR35: GPR35 Is a Primary Target of Disodium Cromoglycate. J Pharmacol Exp Ther 2024; 389:76-86. [PMID: 38290974 DOI: 10.1124/jpet.123.002024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/18/2024] [Accepted: 01/22/2024] [Indexed: 02/01/2024] Open
Abstract
Mast cell stabilizers, including disodium cromoglycate (DSCG), were found to have potential as the agonists of an orphan G protein-coupled receptor, GPR35, although it remains to be determined whether GPR35 is expressed in mast cells and involved in suppression of mast cell degranulation. Our purpose in this study is to verify the expression of GPR35 in mast cells and to clarify how GPR35 modulates the degranulation. We explored the roles of GPR35 using an expression system, a mast cell line constitutively expressing rat GPR35, peritoneal mast cells, and bone marrow-derived cultured mast cells. Immediate allergic responses were assessed using the IgE-mediated passive cutaneous anaphylaxis (PCA) model. Various known GPR35 agonists, including DSCG and newly designed compounds, suppressed IgE-mediated degranulation. GPR35 was expressed in mature mast cells but not in immature bone marrow-derived cultured mast cells and the rat mast cell line. Degranulation induced by antigens was significantly downmodulated in the mast cell line stably expressing GPR35. A GPR35 agonist, zaprinast, induced a transient activation of RhoA and a transient decrease in the amount of filamentous actin. GPR35 agonists suppressed the PCA responses in the wild-type mice but not in the GPR35-/- mice. These findings suggest that GPR35 should prevent mast cells from undergoing degranulation induced by IgE-mediated antigen stimulation and be the primary target of mast cell stabilizers. SIGNIFICANCE STATEMENT: The agonists of an orphan G protein-coupled receptor, GPR35, including disodium cromoglycate, were found to suppress degranulation of rat and mouse mature mast cells, and their antiallergic effects were abrogated in the GPR35-/- mice, indicating that the primary target of mast cell stabilizers should be GPR35.
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Affiliation(s)
- Masumi Oka
- Laboratory of Pharmacology, Division of Pathological Sciences (M.O., M.T., Y.H.-T., S.T.), Bioscience Research Center (M.S.), and Laboratory of Pharmacology and Experimental Therapeutics, Division of Pathological Sciences (S.K.), Kyoto Pharmaceutical University, Kyoto, Japan; Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan (S.A., K.F.); Laboratory of Medicinal Chemistry, Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Tokyo, Japan (O.O.); Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan (A.I.); Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan (J.A.); and Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan (K.M.)
| | - Sohta Akaki
- Laboratory of Pharmacology, Division of Pathological Sciences (M.O., M.T., Y.H.-T., S.T.), Bioscience Research Center (M.S.), and Laboratory of Pharmacology and Experimental Therapeutics, Division of Pathological Sciences (S.K.), Kyoto Pharmaceutical University, Kyoto, Japan; Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan (S.A., K.F.); Laboratory of Medicinal Chemistry, Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Tokyo, Japan (O.O.); Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan (A.I.); Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan (J.A.); and Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan (K.M.)
| | - Osamu Ohno
- Laboratory of Pharmacology, Division of Pathological Sciences (M.O., M.T., Y.H.-T., S.T.), Bioscience Research Center (M.S.), and Laboratory of Pharmacology and Experimental Therapeutics, Division of Pathological Sciences (S.K.), Kyoto Pharmaceutical University, Kyoto, Japan; Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan (S.A., K.F.); Laboratory of Medicinal Chemistry, Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Tokyo, Japan (O.O.); Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan (A.I.); Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan (J.A.); and Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan (K.M.)
| | - Maho Terasaki
- Laboratory of Pharmacology, Division of Pathological Sciences (M.O., M.T., Y.H.-T., S.T.), Bioscience Research Center (M.S.), and Laboratory of Pharmacology and Experimental Therapeutics, Division of Pathological Sciences (S.K.), Kyoto Pharmaceutical University, Kyoto, Japan; Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan (S.A., K.F.); Laboratory of Medicinal Chemistry, Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Tokyo, Japan (O.O.); Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan (A.I.); Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan (J.A.); and Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan (K.M.)
| | - Yuho Hamaoka-Tamura
- Laboratory of Pharmacology, Division of Pathological Sciences (M.O., M.T., Y.H.-T., S.T.), Bioscience Research Center (M.S.), and Laboratory of Pharmacology and Experimental Therapeutics, Division of Pathological Sciences (S.K.), Kyoto Pharmaceutical University, Kyoto, Japan; Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan (S.A., K.F.); Laboratory of Medicinal Chemistry, Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Tokyo, Japan (O.O.); Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan (A.I.); Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan (J.A.); and Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan (K.M.)
| | - Michiko Saito
- Laboratory of Pharmacology, Division of Pathological Sciences (M.O., M.T., Y.H.-T., S.T.), Bioscience Research Center (M.S.), and Laboratory of Pharmacology and Experimental Therapeutics, Division of Pathological Sciences (S.K.), Kyoto Pharmaceutical University, Kyoto, Japan; Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan (S.A., K.F.); Laboratory of Medicinal Chemistry, Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Tokyo, Japan (O.O.); Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan (A.I.); Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan (J.A.); and Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan (K.M.)
| | - Shinichi Kato
- Laboratory of Pharmacology, Division of Pathological Sciences (M.O., M.T., Y.H.-T., S.T.), Bioscience Research Center (M.S.), and Laboratory of Pharmacology and Experimental Therapeutics, Division of Pathological Sciences (S.K.), Kyoto Pharmaceutical University, Kyoto, Japan; Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan (S.A., K.F.); Laboratory of Medicinal Chemistry, Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Tokyo, Japan (O.O.); Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan (A.I.); Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan (J.A.); and Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan (K.M.)
| | - Asuka Inoue
- Laboratory of Pharmacology, Division of Pathological Sciences (M.O., M.T., Y.H.-T., S.T.), Bioscience Research Center (M.S.), and Laboratory of Pharmacology and Experimental Therapeutics, Division of Pathological Sciences (S.K.), Kyoto Pharmaceutical University, Kyoto, Japan; Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan (S.A., K.F.); Laboratory of Medicinal Chemistry, Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Tokyo, Japan (O.O.); Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan (A.I.); Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan (J.A.); and Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan (K.M.)
| | - Junken Aoki
- Laboratory of Pharmacology, Division of Pathological Sciences (M.O., M.T., Y.H.-T., S.T.), Bioscience Research Center (M.S.), and Laboratory of Pharmacology and Experimental Therapeutics, Division of Pathological Sciences (S.K.), Kyoto Pharmaceutical University, Kyoto, Japan; Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan (S.A., K.F.); Laboratory of Medicinal Chemistry, Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Tokyo, Japan (O.O.); Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan (A.I.); Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan (J.A.); and Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan (K.M.)
| | - Kenji Matsuno
- Laboratory of Pharmacology, Division of Pathological Sciences (M.O., M.T., Y.H.-T., S.T.), Bioscience Research Center (M.S.), and Laboratory of Pharmacology and Experimental Therapeutics, Division of Pathological Sciences (S.K.), Kyoto Pharmaceutical University, Kyoto, Japan; Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan (S.A., K.F.); Laboratory of Medicinal Chemistry, Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Tokyo, Japan (O.O.); Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan (A.I.); Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan (J.A.); and Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan (K.M.)
| | - Kazuyuki Furuta
- Laboratory of Pharmacology, Division of Pathological Sciences (M.O., M.T., Y.H.-T., S.T.), Bioscience Research Center (M.S.), and Laboratory of Pharmacology and Experimental Therapeutics, Division of Pathological Sciences (S.K.), Kyoto Pharmaceutical University, Kyoto, Japan; Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan (S.A., K.F.); Laboratory of Medicinal Chemistry, Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Tokyo, Japan (O.O.); Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan (A.I.); Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan (J.A.); and Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan (K.M.)
| | - Satoshi Tanaka
- Laboratory of Pharmacology, Division of Pathological Sciences (M.O., M.T., Y.H.-T., S.T.), Bioscience Research Center (M.S.), and Laboratory of Pharmacology and Experimental Therapeutics, Division of Pathological Sciences (S.K.), Kyoto Pharmaceutical University, Kyoto, Japan; Division of Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan (S.A., K.F.); Laboratory of Medicinal Chemistry, Department of Chemistry and Life Science, School of Advanced Engineering, Kogakuin University, Tokyo, Japan (O.O.); Department of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan (A.I.); Department of Health Chemistry, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan (J.A.); and Department of Pharmacy, Faculty of Pharmacy, Yasuda Women's University, Hiroshima, Japan (K.M.)
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3
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Ren J, Liu T, Bi B, Sohail S, Din FU. Development and Evaluation of Tacrolimus Loaded Nano-Transferosomes for Skin Targeting and Dermatitis Treatment. J Pharm Sci 2024; 113:471-485. [PMID: 37898166 DOI: 10.1016/j.xphs.2023.10.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 10/23/2023] [Accepted: 10/23/2023] [Indexed: 10/30/2023]
Abstract
Tacrolimus (TRL) is used for the treatment of atopic dermatitis (AD) due to its T-cell stimulation effect. However, its significantly poor water solubility, low penetration and cytotoxicity have reduced its topical applications. Herein, tacrolimus loaded nano transfersomes (TRL-NTs) were prepared, followed by their incorporation into chitosan gel to prepare tacrolimus loaded nano transfersomal gel (TRL-NTsG). TEM analysis of the TRL-NTs was performed to check their morphology. DSC, XRD and FTIR analysis of the TRL-NTs were executed after lyophilization. Similarly, rheology, spreadability and deformability of the TRL-NTsG were investigated. In vitro release, ex vivo permeation and in vitro interaction of TRL-NTsG with keratinocytes and fibroblasts as well as their co-cultures were investigated along with their in vitro cell viability analysis. Moreover, in vivo skin deposition, ear thickness, histopathology and IgE level were also determined. Besides, 6 months stability study was also performed. Results demonstrated the uniformly distributed negatively charged nanovesicles with a mean particle size distribution of 163 nm and zeta potential of -27 mV. DSC and XRD exhibited the thermal stability and amorphous form of the drug, respectively. The TRL-NTsG showed excellent deformability, spreadability and rheological behavior. In vitro release studies exhibited an 8-fold better release of TRL from the TRL-NTsG. Similarly, 6-fold better permeation and stability of the TRL-NTsG with keratinocytes and fibroblasts as well as their co-cultures was observed. Furthermore, the ear thickness (0.6 mm) of the TRL-NTsG was found significantly reduced when compared with the untreated (1.7 mm) and TRL conventional gel treated mice (1.3 mm). The H&E staining showed no toxicity of the TRL-NTsG with significantly reduced IgE levels (120 ng/mL). The formulation was found stable for at least 6 months. These results suggested the efficacy of TRL in AD-induced animal models most importantly when incorporated in NTsG.
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Affiliation(s)
- Jingyu Ren
- Department of Dermatology, The First Hospital of Shanxi Medical University, Taiyuan City, Shanxi Province, 030001, China
| | - Tao Liu
- Shanxi Provincial Inspection and Testing Center, Taiyuan City, Shanxi Province, 030001, China
| | - Bo Bi
- Department of Dermatology, Yangquan Coalmine Group General Hospital, Yangquan City, Shanxi Province, 045000, China.
| | - Saba Sohail
- Nanomedicine Research Group, Department of Pharmacy, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Fakhar Ud Din
- Nanomedicine Research Group, Department of Pharmacy, Quaid-i-Azam University, Islamabad 45320, Pakistan
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Xie M, Liu T, Yin J, Liu J, Yang L, Li T, Xia C, Fan Y. Kechuanning Gel Plaster Exerts Anti-inflammatory and Immunomodulatory Effects on Ovalbumin-induced Asthma Model Rats via ERK Pathway. Comb Chem High Throughput Screen 2024; 27:69-77. [PMID: 37138476 DOI: 10.2174/1386207326666230503105935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 03/02/2023] [Accepted: 03/24/2023] [Indexed: 05/05/2023]
Abstract
BACKGROUND We aimed to evaluate the therapeutic effects of Kechuanning gel plaster on ovalbumin (OVA)-induced rat model of asthma. METHODS Rats were injected with OVA to induce asthma, and Kechuanning gel plaster was administered after the OVA challenge. The immune cell counts in the bronchial alveolar lavage fluid (BALF) were calculated after Kechuanning gel plaster administration. The levels of immune factors in BALF and serum OVA-specific IgE levels were analyzed. Western blot analysis and immunohistochemistry were carried out to analyze the following proteins: C-FOS, C-JUN, RAS p21 protein activator 1 (RASA1), matrix metalloproteinase 9 (MMP9), RAF1, p-MEK1, tissue inhibitor of metalloproteinase-1 (TIMP1), and p-extracellular signal-regulated kinase 1 (ERK1). RESULTS Administration of Kechuanning gel plaster led to decreased immune cell counts, inflammatory cytokines (interleukin (IL)-1β, IL13, and IL17), and OVA-specific IgE expression. Compared to the normal group, the C-FOS, C-JUN, RASA1, MMP9, RAF1, MEK1, TIMP1, and p- ERK1 expressions in the model group were significantly increased, whereas Kechuanning gel plaster administration decreased C-JUN, MMP9, TIMP1, RAF1, MEK1, p-ERK1, C-FOS, and RASA1 protein levels. CONCLUSION Kechuanning gel plaster exerted its therapeutic effects on OVA-induced asthma model rats through the ERK signaling pathway. Kechuanning gel plaster could be considered as a potential alternative therapeutic agent for the management of asthma.
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Affiliation(s)
- Miaomiao Xie
- Wuhan Hospital of Traditional Chinese Medicine, Wuhan, Hubei 430014, P.R. China
| | - Tingting Liu
- Wuhan Hospital of Traditional Chinese Medicine, Wuhan, Hubei 430014, P.R. China
| | - Jie Yin
- Hubei University of Chinese Medicine, Wuhan, Hubei 430065, P.R. China
| | - Jing Liu
- Wuhan Hospital of Traditional Chinese Medicine, Wuhan, Hubei 430014, P.R. China
| | - Liu Yang
- Wuhan Hospital of Traditional Chinese Medicine, Wuhan, Hubei 430014, P.R. China
| | - Ting Li
- Wuhan Hospital of Traditional Chinese Medicine, Wuhan, Hubei 430014, P.R. China
| | - Chen Xia
- Wuhan Hospital of Traditional Chinese Medicine, Wuhan, Hubei 430014, P.R. China
| | - Yanbo Fan
- Wuhan Hospital of Traditional Chinese Medicine, Wuhan, Hubei 430014, P.R. China
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5
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Markov SD, Caffrey TC, O'Connell KA, Grunkemeyer JA, Shin S, Hanson R, Patil PP, Shukla SK, Gonzalez D, Crawford AJ, Vance KE, Huang Y, Eberle KC, Radhakrishnan P, Grandgenett PM, Singh PK, Madiyalakan R, Daniels-Wells TR, Penichet ML, Nicodemus CF, Poole JA, Jaffee EM, Hollingsworth MA, Mehla K. IgE-Based Therapeutic Combination Enhances Antitumor Response in Preclinical Models of Pancreatic Cancer. Mol Cancer Ther 2021; 20:2457-2468. [PMID: 34625505 PMCID: PMC8762606 DOI: 10.1158/1535-7163.mct-21-0368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 08/11/2021] [Accepted: 09/30/2021] [Indexed: 11/16/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) represents 3% of all cancer cases and 7% of all cancer deaths in the United States. Late diagnosis and inadequate response to standard chemotherapies contribute to an unfavorable prognosis and an overall 5-year survival rate of less than 10% in PDAC. Despite recent advances in tumor immunology, tumor-induced immunosuppression attenuates the immunotherapy response in PDAC. To date, studies have focused on IgG-based therapeutic strategies in PDAC. With the recent interest in IgE-based therapies in multiple solid tumors, we explored the MUC1-targeted IgE potential against pancreatic cancer. Our study demonstrates the notable expression of FceRI (receptor for IgE antibody) in tumors from PDAC patients. Our study showed that administration of MUC1 targeted-IgE (mouse/human chimeric anti-MUC1.IgE) antibody at intermittent levels in combination with checkpoint inhibitor (anti-PD-L1) and TLR3 agonist (PolyICLC) induces a robust antitumor response that is dependent on NK and CD8 T cells in pancreatic tumor-bearing mice. Subsequently, our study showed that the antigen specificity of the IgE antibody plays a vital role in executing the antitumor response as nonspecific IgE, induced by ovalbumin (OVA), failed to restrict tumor growth in pancreatic tumor-bearing mice. Utilizing the OVA-induced allergic asthma-PDAC model, we demonstrate that allergic phenotype induced by OVA cannot restrain pancreatic tumor growth in orthotopic tumor-bearing mice. Together, our data demonstrate the novel tumor protective benefits of tumor antigen-specific IgE-based therapeutics in a preclinical model of pancreatic cancer, which can open new avenues for future clinical interventions.
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Affiliation(s)
- Spas Dimitrov Markov
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Thomas C Caffrey
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Kelly A O'Connell
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - James A Grunkemeyer
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Simon Shin
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Ryan Hanson
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Prathamesh P Patil
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Surendra K Shukla
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Daisy Gonzalez
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Ayrianne J Crawford
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Krysten E Vance
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Ying Huang
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Kirsten C Eberle
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Prakash Radhakrishnan
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Paul M Grandgenett
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Pankaj K Singh
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | | | - Tracy R Daniels-Wells
- Division of Surgical Oncology, Department of Surgery, University of California in Los Angeles (UCLA), Los Angeles, California
| | - Manuel L Penichet
- Division of Surgical Oncology, Department of Surgery and Department of Microbiology, Immunology and Molecular Genetics; The Molecular Biology Institute; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California
| | | | - Jill A Poole
- Allergy and Immunology Division, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska
| | - Elizabeth M Jaffee
- Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University School of Medicine, Baltimore Maryland
| | - Michael A Hollingsworth
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska
| | - Kamiya Mehla
- The Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, Nebraska.
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Codina AV, Priotti J, Leonardi D, Vasconi MD, Lamas MC, Hinrichsen LI. Effect of sex and genotype of the host on the anthelmintic efficacy of albendazole microcrystals, in the CBi-IGE Trichinella infection murine model. Parasitology 2021; 148:1545-1553. [PMID: 35060467 PMCID: PMC11010169 DOI: 10.1017/s0031182021001128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/13/2021] [Accepted: 06/03/2021] [Indexed: 11/07/2022]
Abstract
Albendazole (ABZ) is an anthelmintic pharmaceutical commonly used in the treatment of nematode infections. It is a Class II drug poorly water-soluble, with very low bioavailability, a feature particularly limiting to treat the trichinellosis chronic phase. Microcrystals obtained by controlled precipitation using hydroxyethyl cellulose and chitosan have previously been shown to improve ABZ biopharmaceutical properties. This investigation aimed to test the systems' in vivo efficacy in the CBi-IGE murine model of Trichinella spiralis infection in the infection's different phases and parasite’ stages. Treatment in the enteral phase led to a 90% decrease in the larval muscle load, probably due to its effect on T. spiralis female fecundity. Both microcrystal systems given in the migratory phase halved muscle load in males, a response not observed in females. The chitosan-based microcrystals proved to be the best when administered in the chronic phase of the infection – an increased proportion of L1 dead larvae was found compared to controls, except in CBi+-treated females. Males and females from the highly susceptible CBi+ line presented a significantly different treatment response in this phase. In vivo efficacy depended on the host genotype and sex and was related to the parasite cycle stage in which the formulations were administered.
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Affiliation(s)
- Ana V. Codina
- Instituto de Genética Experimental, Facultad de Ciencias Médicas, Universidad Nacional de Rosario, Santa Fe 3100, S2000KTRRosario, Argentina
- CIC-UNR, Universidad Nacional de Rosario, Maipú 1065, S2000CGKRosario, Argentina
| | - Josefina Priotti
- Departamento de Farmacia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 570, S2002LRKRosario, Argentina
| | - Darío Leonardi
- Departamento de Farmacia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 570, S2002LRKRosario, Argentina
- IQUIR-CONICET, Suipacha 570, S2002LRKRosario, Argentina
| | - María D. Vasconi
- Instituto de Genética Experimental, Facultad de Ciencias Médicas, Universidad Nacional de Rosario, Santa Fe 3100, S2000KTRRosario, Argentina
- Área Parasitología, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 570, S2002LRKRosario, Argentina
| | - María C. Lamas
- Departamento de Farmacia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 570, S2002LRKRosario, Argentina
- IQUIR-CONICET, Suipacha 570, S2002LRKRosario, Argentina
| | - Lucila I. Hinrichsen
- Instituto de Genética Experimental, Facultad de Ciencias Médicas, Universidad Nacional de Rosario, Santa Fe 3100, S2000KTRRosario, Argentina
- CIC-UNR, Universidad Nacional de Rosario, Maipú 1065, S2000CGKRosario, Argentina
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7
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Park HH, Lee S, Yu Y, Yoo SM, Baek SY, Jung N, Seo KW, Kang KS. TGF-β secreted by human umbilical cord blood-derived mesenchymal stem cells ameliorates atopic dermatitis by inhibiting secretion of TNF-α and IgE. Stem Cells 2020; 38:904-916. [PMID: 32277785 DOI: 10.1002/stem.3183] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 03/03/2020] [Accepted: 03/17/2020] [Indexed: 12/20/2022]
Abstract
Human mesenchymal stem cells (MSCs) are promising therapeutics for autoimmune diseases due to their immunomodulatory effects. In particular, human umbilical cord blood-derived MSCs (hUCB-MSCs) have a prominent therapeutic effect on atopic dermatitis (AD). However, the underlying mechanism is unclear. This study investigated the role of transforming growth factor-beta (TGF-β) in the therapeutic effect of hUCB-MSCs on AD. Small interfering RNA (siRNA)-mediated depletion of TGF-β disrupted the therapeutic effect of hUCB-MSCs in a mouse model of AD by attenuating the beneficial changes in histopathology, mast cell infiltration, tumor necrosis factor-alpha (TNF-α) expression, and the serum IgE level. To confirm that hUCB-MSCs regulate secretion of TNF-α, we investigated whether they inhibit TNF-α secretion by activated LAD2 cells. Coculture with hUCB-MSCs significantly inhibited secretion of TNF-α by LAD2 cells. However, this effect was abolished by siRNA-mediated depletion of TGF-β in hUCB-MSCs. TNF-α expression in activated LAD2 cells was regulated by the extracellular signal-related kinase signaling pathway and was suppressed by TGF-β secreted from hUCB-MSCs. In addition, TGF-β secreted by hUCB-MSCs inhibited maturation of B cells. Taken together, our findings suggest that TGF-β plays a key role in the therapeutic effect of hUCB-MSCs on AD by regulating TNF-α in mast cells and maturation of B cells.
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Affiliation(s)
- Hwan Hee Park
- Stem Cell and Regenerative Bioengineering Institute, Kangstem Biotech Co., Ltd., Biotechnology Center, Seoul National University, Seoul, South Korea
| | - Seunghee Lee
- Stem Cell and Regenerative Bioengineering Institute, Kangstem Biotech Co., Ltd., Biotechnology Center, Seoul National University, Seoul, South Korea
| | - Yeonsil Yu
- Stem Cell and Regenerative Bioengineering Institute, Kangstem Biotech Co., Ltd., Biotechnology Center, Seoul National University, Seoul, South Korea
| | - Sae Mi Yoo
- Stem Cell and Regenerative Bioengineering Institute, Kangstem Biotech Co., Ltd., Biotechnology Center, Seoul National University, Seoul, South Korea
| | - Song Yi Baek
- Stem Cell and Regenerative Bioengineering Institute, Kangstem Biotech Co., Ltd., Biotechnology Center, Seoul National University, Seoul, South Korea
| | - Namhee Jung
- Stem Cell and Regenerative Bioengineering Institute, Kangstem Biotech Co., Ltd., Biotechnology Center, Seoul National University, Seoul, South Korea
| | - Kwang-Won Seo
- Stem Cell and Regenerative Bioengineering Institute, Kangstem Biotech Co., Ltd., Biotechnology Center, Seoul National University, Seoul, South Korea
| | - Kyung-Sun Kang
- Stem Cell and Regenerative Bioengineering Institute, Kangstem Biotech Co., Ltd., Biotechnology Center, Seoul National University, Seoul, South Korea
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
- Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, South Korea
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8
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Schmider AB, Vaught M, Bauer NC, Elliott HL, Godin MD, Ellis GE, Nigrovic PA, Soberman RJ. The organization of leukotriene biosynthesis on the nuclear envelope revealed by single molecule localization microscopy and computational analyses. PLoS One 2019; 14:e0211943. [PMID: 30735559 PMCID: PMC6368329 DOI: 10.1371/journal.pone.0211943] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 01/24/2019] [Indexed: 12/21/2022] Open
Abstract
The initial steps in the synthesis of leukotrienes are the translocation of 5-lipoxygenase (5-LO) to the nuclear envelope and its subsequent association with its scaffold protein 5-lipoxygenase-activating protein (FLAP). A major gap in our understanding of this process is the knowledge of how the organization of 5-LO and FLAP on the nuclear envelope regulates leukotriene synthesis. We combined single molecule localization microscopy with Clus-DoC cluster analysis, and also a novel unbiased cluster analysis to analyze changes in the relationships between 5-LO and FLAP in response to activation of RBL-2H3 cells to generate leukotriene C4. We identified the time-dependent reorganization of both 5-LO and FLAP into higher-order assemblies or clusters in response to cell activation via the IgE receptor. Clus-DoC analysis identified a subset of these clusters with a high degree of interaction between 5-LO and FLAP that specifically correlates with the time course of LTC4 synthesis, strongly suggesting their role in the initiation of leukotriene biosynthesis.
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Affiliation(s)
- Angela B. Schmider
- Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America
| | - Melissa Vaught
- Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America
| | - Nicholas C. Bauer
- Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America
| | - Hunter L. Elliott
- Image and Data Analysis Core, Department of Cell Biology, Harvard Medical School, Boston, MA, United States of America
| | - Matthew D. Godin
- Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America
| | - Giorgianna E. Ellis
- Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America
| | - Peter A. Nigrovic
- Division of Rheumatology, Immunology and Allergy, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, United States of America
| | - Roy J. Soberman
- Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America
- * E-mail:
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9
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Li X, Yang JH, Jin Y, Jin F, Kim DY, Chang JH, Kim JA, Son JK, Moon TC, Son KH, Chang HW. 15,16-Dihydrotanshinone I suppresses IgE-Ag stimulated mouse bone marrow-derived mast cell activation by inhibiting Syk kinase. J Ethnopharmacol 2015; 169:138-144. [PMID: 25917838 DOI: 10.1016/j.jep.2015.04.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 04/13/2015] [Accepted: 04/14/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE 15,16-Dihydrotanshinone I (DHT-I), isolated from the dried root of Salvia miltiorrhiza Bung, which is traditionally used to treat cardiovascular and inflammatory diseases agent in Chinese medicine. DHT-I has been reported to have a broad range of biological activities, including antibacterial activity, and has been used to treat circulatory disorders, hepatitis, inflammation, cancer, and neurodegenerative diseases. AIM OF THE STUDY The aim of this study was to evaluate the anti-allergic inflammatory effects of DHT-I on degranulation and on the generation of eicosanoids, such as, prostaglandin D2 (PGD2) and leukotriene C4 (LTC4), in IgE/Ag-stimulated bone marrow-derived mast cells (BMMCs). MATERIALS AND METHODS The anti-allergic inflammatory activity of DHT-I was evaluated using BMMCs. The effects of DHT-I on mast cell activation were investigated by following degranulation and eicosanoid generation using ELISA and immunoblotting and immunoprecipitation techniques. RESULTS DHT-I at a concentration of 20μM markedly inhibited degranulation and the generation of PGD2 and LTC4 in IgE/Ag-stimulated BMMCs (about 90% inhibitions, respectively). Analyses of FcεRI-mediated signaling pathways demonstrated that DHT-I inhibited the phosphorylations of spleen tyrosine kinase (Syk) and linker for activation of T cells (LAT), and inhibited downstream signaling process, including [Ca(2+)]i mobilization induced by the phosphorylation of phospholipase Cγ1 (PLCγ1), and the activations of mitogen-activated protein kinases (MAPKs) and the Akt-nuclear factor-κB (NF-κB) pathway. CONCLUSIONS DHT-1 inhibits the release of allergic inflammatory mediators from IgE/Ag-stimulated mast cells by suppressing a FcεRI-mediated Syk-dependent signal pathway. This result suggests DHT-I offers a novel developmental basis for drugs targeting allergic inflammatory diseases.
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Affiliation(s)
- Xian Li
- College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Ju Hye Yang
- Korea Medicine-Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, Daejeon 305-811, Republic of Korea
| | - Ye Jin
- Yanbian University Hospital, Yanji, Jilin Province, China
| | - Fansi Jin
- College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Dong-Young Kim
- College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Jae-Hoon Chang
- College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Jung-Ae Kim
- College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Jong-Keun Son
- College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea
| | - Tae Chul Moon
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada T6G 2S2
| | - Kun Ho Son
- Department of Food Science and Nutrition, Andong National University, Andong 760-749, Republic of Korea.
| | - Hyeun Wook Chang
- College of Pharmacy, Yeungnam University, Gyeongsan 712-749, Republic of Korea.
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10
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Garcia-Faroldi G, Melo FR, Bruemmer D, Conneely OM, Pejler G, Lundequist A. Nuclear receptor 4a3 (nr4a3) regulates murine mast cell responses and granule content. PLoS One 2014; 9:e89311. [PMID: 24586680 PMCID: PMC3930735 DOI: 10.1371/journal.pone.0089311] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 01/22/2014] [Indexed: 11/18/2022] Open
Abstract
Nuclear receptor 4a3 (Nr4a3) is a transcription factor implicated in various settings such as vascular biology and inflammation. We have recently shown that mast cells dramatically upregulate Nuclear receptor 4a3 upon activation, and here we investigated the functional impact of Nuclear receptor 4a3 on mast cell responses. We show that Nuclear receptor 4a3 is involved in the regulation of cytokine/chemokine secretion in mast cells following activation via the high affinity IgE receptor. Moreover, Nuclear receptor 4a3 negatively affects the transcript and protein levels of mast cell tryptase as well as the mast cell's responsiveness to allergen. Together, these findings identify Nuclear receptor 4a3 as a novel regulator of mast cell function.
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Affiliation(s)
- Gianni Garcia-Faroldi
- Swedish University of Agricultural Sciences, Department of Anatomy, Physiology and Biochemistry, BMC, Uppsala, Sweden
| | - Fabio R. Melo
- Swedish University of Agricultural Sciences, Department of Anatomy, Physiology and Biochemistry, BMC, Uppsala, Sweden
| | - Dennis Bruemmer
- Saha Cardiovascular Research Center, University of Kentucky College of Medicine, Wethington, Kentucky, United States of America
| | - Orla M. Conneely
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States of America
| | - Gunnar Pejler
- Swedish University of Agricultural Sciences, Department of Anatomy, Physiology and Biochemistry, BMC, Uppsala, Sweden
| | - Anders Lundequist
- Swedish University of Agricultural Sciences, Department of Anatomy, Physiology and Biochemistry, BMC, Uppsala, Sweden
- * E-mail:
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11
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Słodka A, Wiktorska M, Brzezińska-Błaszczyk E. IgE by Itself Affects Mature Rat Mast Cell Preformed and De Novo-Synthesized Mediator Release and Amplifies Mast Cell Migratory Response. PLoS One 2013; 8:e79286. [PMID: 24205379 PMCID: PMC3813586 DOI: 10.1371/journal.pone.0079286] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 09/24/2013] [Indexed: 11/18/2022] Open
Abstract
Background Immunoglobulin E (IgE) binds to high affinity receptor FcεRI numerously expressed on mast cells. Recent findings have revealed that IgE by itself may regulate various aspects of mast cell biology, however, detailed data is still limited. Methodology/Findings Here, we have examined the influence of IgE alone, used at different concentrations, on mast cell activity and releasability. For the study we have employed in vivo differentiated mature tissue mast cells isolated from rat peritoneal cavity. Mast cells were exposed to IgE alone and then the release of preformed and de novo-synthesized mediators, surface FcεRI expression and mast cell migratory response were assessed. IgE by itself was found to up-regulate FcεRI expression and activate mast cells to degranulation, as well as de novo synthesis and release of cysteinyl leukotrienes and TNF. We have provided evidence that IgE alone also amplified spontaneous and CCL5- or TNF-induced migration of mast cells. Importantly, IgE was effective only at concentrations ≥ 3 µg/mL. A molecular basis investigation using an array of specific inhibitors showed that Src kinases, PLC/PLA2, MAP kinases (ERK and p38) and PI3K were entirely or partially involved in IgE-induced mast cell response. Furthermore, IgE alone stimulated the phosphorylation of MAP kinases and PI3K in rat mast cells. Conclusion Our results clearly demonstrated that IgE by itself, at higher concentrations, influences mast cell activity and releasability. As there are different conditions when the IgE level is raised it might be supposed that in vivo IgE is one of the important factors modulating mast cell biology within tissues.
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Affiliation(s)
- Aleksandra Słodka
- Department of Experimental Immunology, Medical University of Łódź, Łódź, Poland
| | - Magdalena Wiktorska
- Department of Molecular and Medical Biophysics, Medical University of Łódź, Łódź, Poland
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12
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Mira A, Tanaka A, Tateyama Y, Kondo R, Shimizu K. Comparative biological study of roots, stems, leaves, and seeds of Angelica shikokiana Makino. J Ethnopharmacol 2013; 148:980-987. [PMID: 23769982 DOI: 10.1016/j.jep.2013.06.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Revised: 06/03/2013] [Accepted: 06/05/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Angelica shikokiana has been used as a health food for its anticancer, anti-inflammatory, antibacterial, antiallergic, and blood vessel dilating effects in Japan. It can also be used to prevent and treat hepatitis, diabetes, hyperlipidemia, and arteriosclerosis. AIM OF THE STUDY The present study was designed to compare the biological activities such as melanin synthesis inhibitory, anti-allergy, anti-lipase, anti-bacterial, anti-oxidant, and neuroprotective activities of different parts of the plant that may justify the use of this plant in folk medicine. MATERIAL AND METHODS The roots, stems, leaves and, seeds of Angelica shikokiana were separately extracted with water and ethanol. Each extract was examined for melanin synthesis inhibitory and anti-allergy activity on B16-melanoma and RBL-2H3 cells using IgE and A23187 as a stimulant for β-hexosaminidase release, respectively. We also evaluated the inhibition of two enzymes, lipase and acetylcholine esterase, and of the bacterial growth of two species, Escherichia coli and Staphylococcus aureaus. The anti-oxidant activity was determined using oxygen radical anti-oxidant capacity, ORAC assay and its relation to the phenolic content was estimated using the Folin-Ciocalteu method. Besides, the protective effect of the extracts against H2O2-induced oxidative stress in mouse neuroblastoma, Neuro-2A cells was investigated. RESULTS The most active extract exhibiting melanin synthesis inhibition (63%) and at the same time with low cytotoxicity (15%) was the ethanol extract of roots at 20 µg/ml, followed by the ethanol extract of stems (57% inhibition, 5% cytotoxicity). On the other hand, the highest inhibitions of β-hexosaminidase release were recorded for the ethanol extract of leaves with IC50 value of 6.89 µg/ml followed by the water extract of the seeds and leaves with IC50 value of 78.32 and 88.44 µg/ml, respectively. For anti-lipase assay, ethanol extracts of the stems and roots showed the strongest inhibition with IC50 values of 204.06 and 216.24 µg/ml, respectively. None of the examined extracts showed any activity against Escherichia coli. while the ethanol extract of the roots and stems showed moderate inhibition for Staphylococcus aureus with minimum inhibitory concentration of 400 µg/ml. Ethanol extract of the roots showed only 30% inhibition of acetylcholine esterase enzyme. The results of anti-oxidant, phenolic content and protective effect against H2O2-induced cytotoxicity assays showed highly correlated data. Ethanol extract of the stems (ORAC value of 1.08 µmol Trolox/mg and phenolic content 44.25 μg GAE/mg) increased the cell viability of H2O2-treated Neuro-2A cells by 28%.
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Affiliation(s)
- Amira Mira
- Division of Systematic Forest and Forest Products Sciences, Department of agro-environmental sciences, Faculty of Agriculture, Graduate School of Kyushu University, 812-8581, Japan
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13
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Daniels-Wells TR, Helguera G, Leuchter RK, Quintero R, Kozman M, Rodríguez JA, Ortiz-Sánchez E, Martínez-Maza O, Schultes BC, Nicodemus CF, Penichet ML. A novel IgE antibody targeting the prostate-specific antigen as a potential prostate cancer therapy. BMC Cancer 2013; 13:195. [PMID: 23594731 PMCID: PMC3651304 DOI: 10.1186/1471-2407-13-195] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Accepted: 03/06/2013] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Prostate cancer (PCa) is the second leading cause of cancer deaths in men in the United States. The prostate-specific antigen (PSA), often found at high levels in the serum of PCa patients, has been used as a marker for PCa detection and as a target of immunotherapy. The murine IgG1 monoclonal antibody AR47.47, specific for human PSA, has been shown to enhance antigen presentation by human dendritic cells and induce both CD4 and CD8 T-cell activation when complexed with PSA. In this study, we explored the properties of a novel mouse/human chimeric anti-PSA IgE containing the variable regions of AR47.47 as a potential therapy for PCa. Our goal was to take advantage of the unique properties of IgE in order to trigger immune activation against PCa. METHODS Binding characteristics of the antibody were determined by ELISA and flow cytometry. In vitro degranulation was determined by the release of β-hexosaminidase from effector cells. In vivo degranulation was monitored in human FcεRIα transgenic mice using the passive cutaneous anaphylaxis assay. These mice were also used for a vaccination study to determine the in vivo anti-cancer effects of this antibody. Significant differences in survival were determined using the Log Rank test. In vitro T-cell activation was studied using human dendritic cells and autologous T cells. RESULTS The anti-PSA IgE, expressed in murine myeloma cells, is properly assembled and secreted, and binds the antigen and FcεRI. In addition, this antibody is capable of triggering effector cell degranulation in vitro and in vivo when artificially cross-linked, but not in the presence of the natural soluble antigen, suggesting that such an interaction will not trigger systemic anaphylaxis. Importantly, the anti-PSA IgE combined with PSA also triggers immune activation in vitro and in vivo and significantly prolongs the survival of human FcεRIα transgenic mice challenged with PSA-expressing tumors in a prophylactic vaccination setting. CONCLUSIONS The anti-PSA IgE exhibits the expected biological properties and is capable of triggering immune activation and anti-tumor protection. Further studies on this antibody as a potential PCa therapy are warranted.
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Affiliation(s)
- Tracy R Daniels-Wells
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Gustavo Helguera
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Current Affiliation: School of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
| | - Richard K Leuchter
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Rafaela Quintero
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Maggie Kozman
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - José A Rodríguez
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- The Molecular Biology Institute, University of California, Los Angeles, CA, USA
| | - Elizabeth Ortiz-Sánchez
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Current Affiliation: Unit of Biomedical Research in Cancer, Basic Research Division, National Institute of Cancerology, Mexico City, Mexico
| | - Otoniel Martínez-Maza
- Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, CA, USA
- Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles, CA, USA
| | - Birgit C Schultes
- Advanced Immune Therapeutics, Inc, Charlestown, MA, USA
- Current Affiliation: Momenta Pharmaceuticals, Inc, Cambridge, MA, USA
| | - Christopher F Nicodemus
- Advanced Immune Therapeutics, Inc, Charlestown, MA, USA
- Current Affiliation: AIT Strategies, Franconia, NH, USA
| | - Manuel L Penichet
- Division of Surgical Oncology, Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- The Molecular Biology Institute, University of California, Los Angeles, CA, USA
- Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, CA, USA
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14
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Zhang NN, Park DK, Park HJ. The inhibitory activity of atractylenolide Ш, a sesquiterpenoid, on IgE-mediated mast cell activation and passive cutaneous anaphylaxis (PCA). J Ethnopharmacol 2013; 145:278-285. [PMID: 23149288 DOI: 10.1016/j.jep.2012.11.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 10/17/2012] [Accepted: 11/03/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE AT Ш, a sesquiterpenoid, is the major component of Atractylodes japonica Koidz that has been used as a traditional oriental medicine. AIM OF THE STUDY We investigated the anti-allergic activity of AT Ш and its mechanism of action. MATERIALS AND METHODS The released amount of β-hexosaminidase in mast cells, a key parameter of degranulation, was measured. Anti-allergic potential of AT Ш was evaluated using passive cutaneous anaphylaxis in vivo. The anti-allergic mechanism of AT Ш was investigated by immunoblotting analysis, RT-PCR and measurement of [Ca(2+)]i in mast cells. RESULTS AT Ш significantly inhibited IgE/Ag-mediated degranulation with an IC(50) value (36 ± 4 μM) in RBL-2H3 cells without affecting cell viability. It also suppressed IgE/Ag-mediated passive cutaneous anaphylaxis (PCA) response with an ED(50) value (65 ± 41 mg/kg) in vivo. AT Ш suppressed the production of interleukin (IL-4) and tumor necrosis factor (TNF)-alpha mRNAs more potent than the Src-family kinase inhibitor PP2 in RBL-2H3 cells at all concentrations. In order to elucidate the anti-allergic mechanisms of AT Ш in mast cells, we examined the activated levels of signaling molecules. AT Ш inhibited the phosphorylation of Lyn, Fyn, Syk, LAT, PLCγ, Gab2, Akt, p38, and JNK kinases expression. IgE/Ag-mediated [Ca(2+)]i elevation was significantly inhibited by AT Ш. CONCLUSIONS Our study suggests that AT Ш might be used as a therapeutic agent for allergic diseases.
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Affiliation(s)
- Nan-nan Zhang
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 143-701, Republic of Korea
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15
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Li SH, Li XF, Zhao H, Jiang T, Deng YQ, Yu XD, Zhu QY, Qin ED, Qin CF. Cross protection against lethal West Nile virus challenge in mice immunized with recombinant E protein domain III of Japanese encephalitis virus. Immunol Lett 2011; 138:156-60. [PMID: 21515306 DOI: 10.1016/j.imlet.2011.04.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 03/19/2011] [Accepted: 04/07/2011] [Indexed: 11/18/2022]
Abstract
Japanese encephalitis virus (JEV) and West Nile virus (WNV) are closely related mosquito-borne flaviviruses that cause severe encephalitic diseases with global impact. Cross protection among JEV and WNV has been previously described, and most cross reactive epitopes were identified within the domain II of E protein (EDII). In this study, the E protein domain III (EDIII) of JEV was successfully expressed in Escherichia coli, purified by a Ni-NTA column and characterized by Western blotting assay. Competitive inhibition assay showed that this recombinant JEV EDIII blocks the entry of JEV into BHK-21 cells. Mice immunized with the recombinant JEV EDIII developed high IgG and neutralizing antibodies titers against JEV. Most importantly, antibodies induced by JEV EDIII could neutralize WNV in vitro and partially protected mice against lethal WNV challenge. These results demonstrate that immunization with JEV EDIII induces cross-protective immunity against WNV infection, indicating a possible role of EDIII for the cross-protection among flavivirus.
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MESH Headings
- Animals
- Antibodies, Neutralizing
- Antibodies, Viral
- Binding, Competitive
- Blotting, Western
- Cell Line
- Chromatography, Affinity
- Cloning, Molecular
- Cricetinae
- Cross Protection/immunology
- Cross Reactions
- Encephalitis Virus, Japanese/physiology
- Encephalitis, Japanese/immunology
- Encephalitis, Japanese/prevention & control
- Encephalitis, Japanese/virology
- Escherichia coli
- Female
- Immunization
- Immunoglobulin E/chemistry
- Immunoglobulin E/genetics
- Immunoglobulin E/immunology
- Immunoglobulin E/metabolism
- Immunoglobulin E/pharmacology
- Mice
- Mice, Inbred BALB C
- Protein Structure, Tertiary
- Recombinant Proteins/chemistry
- Recombinant Proteins/genetics
- Recombinant Proteins/immunology
- Recombinant Proteins/metabolism
- Recombinant Proteins/pharmacology
- Transfection
- Virus Internalization/drug effects
- West Nile Fever/immunology
- West Nile Fever/prevention & control
- West Nile Fever/virology
- West Nile virus/physiology
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Affiliation(s)
- Shi-Hua Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, No. 20 Dongda Street, Beijing 100071, China
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16
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Pérez-Novo CA, Holtappels G, Vinall SL, Xue L, Zhang N, Bachert C, Pettipher R. CRTH2 mediates the activation of human Th2 cells in response to PGD(2) released from IgE/anti-IgE treated nasal polyp tissue. Allergy 2010; 65:304-10. [PMID: 19839971 DOI: 10.1111/j.1398-9995.2009.02204.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Mast cells release mediators upon stimulation that contribute to the pathogenesis of chronic airway disease, including the recruitment and activation of Th2 lymphocytes. The objective was to determine the involvement of prostaglandin D(2) (PGD(2)) and its receptors in the chemotaxis of Th2 cells, using nasal polyp tissue. METHODS Tissue explants from ten patients with nasal polyposis were incubated with RPMI alone or RPMI containing IgE/anti-IgE for 30 min. Some samples were treated with diclofenac to inhibit the production of PGD(2). Supernatants were assayed for PGD(2) content and for their ability to promote human Th2 cell chemotaxis in the presence and absence of a CRTH2 antagonist. Transcript levels of D protanoid receptor type 1 (DP(1)), chemoattractant receptor-homologous receptor expressed on Th2 cells (CRTH2) and PGD(2) synthase were analysed by real time PCR. RESULTS Increased release of PGD(2) by nasal polyp tissue treated with IgE/anti-IgE was significantly inhibited by preincubation of the tissue with diclofenac. Transcript levels of PGD(2) synthase, DP(1) and CRTH2 receptors increased after stimulation with IgE/anti-IgE. Supernatants from IgE/anti-IgE-stimulated nasal polyp tissue caused significantly increased chemotaxis of Th2 cells. The levels of PGD(2) produced and the degree of Th2 cell chemotaxis were highly correlated. Diclofenac inhibited the production of Th2 cell chemotactic activity, and the chemotactic effect of the supernatant on Th2 cells was inhibited by the CRTH2 antagonist ramatroban. CONCLUSION These data suggest that in immunologically activated nasal polyp tissue, PGD(2) produced by mast cells promotes the migration of Th2 cells through a CRTH2 dependent mechanism.
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Affiliation(s)
- C A Pérez-Novo
- Upper Airways Research Laboratory, Department of Otorhinolaryngology, Ghent University Hospital, Ghent, Belgium
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17
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Yoshimaru T, Suzuki Y, Inoue T, Ra C. L-type Ca2+ channels in mast cells: activation by membrane depolarization and distinct roles in regulating mediator release from store-operated Ca2+ channels. Mol Immunol 2009; 46:1267-77. [PMID: 19128833 DOI: 10.1016/j.molimm.2008.11.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2008] [Revised: 11/20/2008] [Accepted: 11/21/2008] [Indexed: 11/19/2022]
Abstract
Store-operated Ca(2+) channels (SOCs) are considered to be the principal route of Ca(2+) influx in non-excitable cells. We have previously shown that in mast cells IgE+antigen (Ag) induces a dihydropyridine (DHP)-sensitive Ca(2+) influx independently of Ca(2+) store depletion. Since the DHP receptor is the alpha subunit of L-type Ca(2+) channels (LTCCs), we examined the possible role of LTCCs in mast cell activation. Mast cells exhibited substantial expression of the alpha(1C) (Ca(V)1.2) subunit mRNA and protein on their cell surface. IgE+Ag-induced Ca(2+) influx was substantially reduced by the LTCC inhibitor nifedipine, and enhanced by the LTCC activator (S)-BayK8644, whereas these agents had minimal effects on thapsigargin (TG)-induced Ca(2+) influx. These LTCC-modulating agents regulated IgE+Ag-induced cell activation but not TG-induced cell activation. Inhibition of SOCs by 2-aminoethoxydiphenyl borate reduced both degranulation and production of cytokines, including interleukin-13 and tumor necrosis factor-alpha, whereas LTCC modulation reciprocally regulated degranulation and cytokine production. IgE+Ag, but not TG, induced substantial plasma membrane depolarization, which stimulated a DHP-sensitive Ca(2+) response. Moreover, IgE+Ag-, but not TG-induced mitochondrial Ca(2+) increase was regulated by LTCC modulators. Finally, gene silencing analyses using small interfering RNA revealed that the alpha(1C) (Ca(V)1.2) LTCC mediated the pharmacological effects of the LTCC-modulating agents. These results demonstrate that mast cells express LTCCs, which becomes activated by membrane depolarization to regulate cytosolic and mitochondrial Ca(2+), thereby controlling mast cell activation in a distinct manner from SOCs.
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Affiliation(s)
- Tetsuro Yoshimaru
- Division of Molecular Cell Immunology and Allergology, Advanced Medical Research Center, Nihon University Graduate School of Medical Science, 30-1 Oyaguchikami-cho Itabashi-ku, Tokyo 173-8610, Japan
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18
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Abstract
BACKGROUND Mast cells activation through FcepsilonRI cross-linking has a pivotal role in the initiation of allergic reactions. The influence of this activation on programmed cell death of human mast cells has not yet been clarified. This study evaluates the influence of IgE-dependent activation alone and in synergy with TRAIL on the expression of molecules involved in the apoptotic signal transduction. METHODS Human cord blood derived mast cells (CBMC) were cultured with myeloma IgE followed by activation with anti-human IgE. The expression of proteins involved in apoptotic signal transduction was assessed by immunoblot analysis. To test the effect of activation on a pro-apoptotic stimulus, activated, IgE-treated and resting CBMC were incubated with TRAIL, or in a medium with suboptimal concentrations of stem cell factor (SCF). RESULTS In accordance with a previous study of ours, it was found that IgE-dependent activation increased TRAIL-induced caspase-8 and caspase-3 cleavage. However, it did not have a significant influence on CBMC death induced by SCF withdrawal. IgE-dependent activation increased the expression of FLIP and myeloid cell leukemia 1 (MCL-1) anti-apoptotic molecules as well as the pro-apoptotic one, BIM. In addition, a decrease in BID expression was observed. TRAIL could reverse the increase in FLIP but did not influence the upregulation of MCL-1 and of BIM. CONCLUSIONS These findings suggest that IgE-dependent activation of human mast cells induces an increase in both pro-survival and pro-apoptotic molecules. We therefore hypothesized that IgE-dependent activation may regulate human mast cell apoptosis by fine-tuning anti-apoptotic and pro-apoptotic factors.
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Affiliation(s)
- B Berent-Maoz
- Department of Pharmacology and Experimental Therapeutics, School of Pharmacy, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
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19
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Monteseirín J, Vega A, Chacón P, Camacho MJ, El Bekay R, Asturias JA, Martínez A, Guardia P, Pérez-Cano R, Conde J. Neutrophils as a novel source of eosinophil cationic protein in IgE-mediated processes. J Immunol 2007; 179:2634-41. [PMID: 17675527 DOI: 10.4049/jimmunol.179.4.2634] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The production of eosinophil cationic protein (ECP) in IgE-mediated diseases has been associated mainly with eosinophils, although no IgE-dependent ECP release has been observed in these cells. Because there is increasing evidence of neutrophil participation in allergic processes, we have examined whether human neutrophils from allergic patients were able to produce ECP by an IgE-dependent mechanism. After challenge with specific Ags to which the patients were sensitized, ECP release was detected in the culture medium. Furthermore, intracellular protein was detected by flow cytometry, immunofluorescence staining, and Western blotting. Expression at both mRNA and de novo protein synthesis were detected, respectively, by RT-PCR and radiolabeling with (35)S. Ag effect was mimicked by cell treatment with anti-IgE Abs or Abs against FcepsilonRI and galectin-3 (FcepsilonRI>galectin-3), but not against FcepsilonRII. These observations represent a novel view of neutrophils as possible source of ECP in IgE-dependent diseases.
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Affiliation(s)
- Javier Monteseirín
- Servicio Regional de Inmunología y Alergia, Hospital Universitario Virgen Macarena, Sevilla, Spain.
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20
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Gonzalo JA, Qiu Y, Lora JM, Al-Garawi A, Villeval JL, Boyce JA, Martinez-A C, Marquez G, Goya I, Hamid Q, Fraser CC, Picarella D, Cote-Sierra J, Hodge MR, Gutierrez-Ramos JC, Kolbeck R, Coyle AJ. Coordinated involvement of mast cells and T cells in allergic mucosal inflammation: critical role of the CC chemokine ligand 1:CCR8 axis. J Immunol 2007; 179:1740-50. [PMID: 17641040 DOI: 10.4049/jimmunol.179.3.1740] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
CCL1 is the predominant chemokine secreted from IgE-activated human and mouse mast cells in vitro, colocalizes to mast cells in lung biopsies, and is elevated in asthmatic airways. CCR8, the receptor for CCL1, is expressed by approximately 70% of CD4(+) T lymphocytes recruited to the asthmatic airways, and the number of CCR8-expressing cells is increased 3-fold in the airways of asthmatic subjects compared with normal volunteers. In vivo, CCL1 expression in the lung is reduced in mast cell-deficient mice after aeroallergen provocation. Neutralization of CCL1 or CCR8 deficiency results in reduced mucosal lung inflammation, airway hyperresponsiveness, and mucus hypersecretion to a similar degree as detected in mast cell-deficient mice. Adenoviral delivery of CCL1 to the lungs of mast cell-deficient mice restores airway hyperresponsiveness, lung inflammation, and mucus hypersecretion to the degree observed in wild-type mice. The consequences of CCR8 deficiency, including a marked reduction in Th2 cytokine levels, are comparable with those observed by depletion of CD4(+) T lymphocytes. Thus, mast cell-derived CCL1- and CCR8-expressing CD4(+) effector T lymphocytes play an essential role in orchestrating lung mucosal inflammatory responses.
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MESH Headings
- Animals
- Asthma/immunology
- Asthma/metabolism
- Asthma/pathology
- Bronchial Hyperreactivity/genetics
- Bronchial Hyperreactivity/immunology
- Bronchial Hyperreactivity/pathology
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/metabolism
- CD4-Positive T-Lymphocytes/pathology
- Chemokine CCL1
- Chemokines, CC/biosynthesis
- Chemokines, CC/genetics
- Chemokines, CC/physiology
- Cytokines/biosynthesis
- Cytokines/genetics
- Female
- Humans
- Hypersensitivity/genetics
- Hypersensitivity/immunology
- Hypersensitivity/pathology
- Immunoglobulin E/pharmacology
- Inflammation/genetics
- Inflammation/immunology
- Inflammation/pathology
- Lung/immunology
- Lung/metabolism
- Lung/pathology
- Mast Cells/immunology
- Mast Cells/metabolism
- Mast Cells/pathology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Rats
- Rats, Inbred WKY
- Receptors, CCR8
- Receptors, Chemokine/biosynthesis
- Receptors, Chemokine/deficiency
- Receptors, Chemokine/genetics
- Receptors, Chemokine/physiology
- Respiratory Mucosa/immunology
- Respiratory Mucosa/metabolism
- Respiratory Mucosa/pathology
- Signal Transduction/genetics
- Signal Transduction/immunology
- Th2 Cells/immunology
- Th2 Cells/metabolism
- Th2 Cells/pathology
- Up-Regulation/genetics
- Up-Regulation/immunology
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Affiliation(s)
- Jose-Angel Gonzalo
- Department of Mucosal Immunology and Pharmacology, Millennium Pharmaceuticals, Inc., Cambridge, MA 02139, USA
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21
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Duffy SM, Cruse G, Brightling CE, Bradding P. Adenosine closes the K+ channel KCa3.1 in human lung mast cells and inhibits their migration via the adenosine A2A receptor. Eur J Immunol 2007; 37:1653-62. [PMID: 17474152 PMCID: PMC2699420 DOI: 10.1002/eji.200637024] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Human lung mast cells (HLMC) express the Ca2+-activated K+ channel KCa3.1, which opens following IgE-dependent activation. This hyperpolarises the cell membrane and potentiates both Ca2+ influx and degranulation. In addition, blockade of KCa3.1 profoundly inhibits HLMC migration to a variety of diverse chemotactic stimuli. KCa3.1 activation is attenuated by the β2adrenoceptor through a Gαs-coupled mechanism independent of cyclic AMP. Adenosine is an important mediator that both attenuates and enhances HLMC mediator release through the Gαs-coupled A2A and A2B adenosine receptors, respectively. We show that at concentrations that inhibit HLMC degranulation (10–5–10–3 M), adenosine closes KCa3.1 both dose-dependently and reversibly. KCa3.1 suppression by adenosine was reversed partially by the selective adenosine A2A receptor antagonist ZM241385 but not by the A2B receptor antagonist MRS1754, and the effects of adenosine were mimicked by the selective A2A receptor agonist CGS21680. Adenosine also opened a depolarising current carried by non-selective cations. As predicted from the role of KCa3.1 in HLMC migration, adenosine abolished HLMC chemotaxis to asthmatic airway smooth muscle-conditioned medium. In summary, the Gαs-coupled adenosine A2A receptor closes KCa3.1, providing a clearly defined mechanism by which adenosine inhibits HLMC migration and degranulation. A2A receptor agonists with channel-modulating function may be useful for the treatment of mast cell-mediated disease.
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Affiliation(s)
- S Mark Duffy
- Department of Infection, Immunity and Inflammation, Institute for Lung Health, University of Leicester, and Glenfield Hospital, Leicester, UK
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22
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Kikawada E, Bonventre JV, Arm JP. Group V secretory PLA2 regulates TLR2-dependent eicosanoid generation in mouse mast cells through amplification of ERK and cPLA2alpha activation. Blood 2007; 110:561-7. [PMID: 17369491 PMCID: PMC1924482 DOI: 10.1182/blood-2006-10-052258] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2006] [Accepted: 02/06/2007] [Indexed: 01/28/2023] Open
Abstract
Mast cells may be activated through Toll-like receptors (TLRs) for the dose- and time-dependent release of eicosanoids. However, the signaling mechanisms of TLR-dependent rapid eicosanoid generation are not known. We previously reported a role for group V secretory phospholipase A(2) (PLA(2)) in regulating phagocytosis of zymosan and the ensuing eicosanoid generation in mouse resident peritoneal macrophages, suggesting a role for the enzyme in innate immunity. In the present study, we have used gene knockout mice to define an essential role for MyD88 and cytosolic PLA(2)alpha in TLR2-dependent eicosanoid generation. Furthermore, in mast cells lacking group V secretory PLA(2), the time course of phosphorylation of ERK1/2 and of cPLA(2)alpha was markedly truncated, leading to attenuation of eicosanoid generation in response to stimulation through TLR2, but not through c-kit or FcepsilonRI. These findings provide the first dissection of the mechanisms of TLR-dependent rapid eicosanoid generation, which is MyD88-dependent, requires cPLA(2)alpha, and is amplified by group V sPLA(2) through its regulation of the sequential phosphorylation and activation of ERK1/2 and cPLA(2)alpha. The findings support the suggestion that group V sPLA(2) regulates innate immune responses.
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Affiliation(s)
- Eriya Kikawada
- Department of Medicine, Harvard Medical School, Boston, MA, USA
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23
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Yamada P, Isoda H, Han JK, Talorete TPN, Abe Y. Inhibitory effect of fulvic acid extracted from Canadian sphagnum peat on chemical mediator release by RBL-2H3 and KU812 cells. Biosci Biotechnol Biochem 2007; 71:1294-305. [PMID: 17485833 DOI: 10.1271/bbb.60702] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Fulvic acid (FA) was extracted and purified from Canadian Sphagnum peat (CP-FA) and characterized by using an element analysis meter, Fourier transform infrared (FT-IR) spectroscopy, electron spin resonance (ESR) spectroscopy, and (13)C-nuclear magnetic resonance ((13)C-NMR) spectroscopy. To investigate the antiallergic effect of CP-FA, we incubated rat basophilic leukemia (RBL-2H3) cells with 0.001-10.0 microg/ml of CP-FA and determined the beta-hexosaminidase release inhibition at different response stages. The intracellular calcium [Ca(2+)](i) level was also determined by using Fluo 3-AM, a calcium-specific fluorescent probe, and the cytotoxicity of CP-FA was determined by the 3-(4,5-dimethythiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) assay. The results revealed that RBL-2H3 cells incubated for 48 h with 0.001-10.0 microg/ml of CP-FA did not show any decreased viability. CP-FA inhibited the beta-hexosaminidase release by IgE-sensitized, antigen-stimulated RBL-2H3 cells at the antigen-antibody binding stage and the antibody-receptor binding stage. CP-FA also inhibited histamine release from A23187 plus PMA- or compound 48/80-stimulated KU812 cells. Furthermore, there was a decrease in the intracellular [Ca(2+)](i) level in IgE-sensitized cells incubated with CP-FA and stimulated with antigen. Our results show that CP-FA may be useful for the treatment or prevention of allergic diseases.
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MESH Headings
- Animals
- Anti-Allergic Agents/pharmacology
- Antigen-Antibody Complex/immunology
- Antigens/immunology
- Basophils/metabolism
- Benzopyrans/pharmacology
- Calcimycin/pharmacology
- Calcium/analysis
- Cell Line, Tumor
- Dose-Response Relationship, Drug
- Fluorescent Dyes
- Formazans/metabolism
- Histamine Release/drug effects
- Humans
- Immunoglobulin E/pharmacology
- Ionophores/pharmacology
- Leukemia, Basophilic, Acute
- Leukemia, Experimental
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive
- Nuclear Magnetic Resonance, Biomolecular
- Plant Extracts/pharmacology
- Rats
- Spectroscopy, Fourier Transform Infrared
- Sphagnopsida/chemistry
- Tetradecanoylphorbol Acetate/pharmacology
- Tetrazolium Salts/metabolism
- beta-N-Acetylhexosaminidases/antagonists & inhibitors
- p-Methoxy-N-methylphenethylamine/pharmacology
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Affiliation(s)
- Parida Yamada
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
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24
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Yamasaki S, Ishikawa E, Sakuma M, Kanagawa O, Cheng AM, Malissen B, Saito T. LAT and NTAL mediate immunoglobulin E-induced sustained extracellular signal-regulated kinase activation critical for mast cell survival. Mol Cell Biol 2007; 27:4406-15. [PMID: 17420272 PMCID: PMC1900065 DOI: 10.1128/mcb.02109-06] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Immunoglobulin E (IgE) induces mast cell survival in the absence of antigen (Ag) through the high-affinity IgE receptor, Fcepsilon receptor I (FcepsilonRI). Although we have shown that protein tyrosine kinase Syk and sustained extracellular signal-regulated kinase (Erk) activation are required for IgE-induced mast cell survival, how Syk couples with sustained Erk activation is still unclear. Here, we report that the transmembrane adaptors LAT and NTAL are phosphorylated slowly upon IgE stimulation and that sustained but not transient Erk activation induced by IgE was inhibited in LAT(-/-) NTAL(-/-) bone marrow-derived mast cells (BMMCs). IgE-induced survival requires Ras activation, and both were impaired in LAT(-/-) NTAL(-/-) BMMCs. Sos was preferentially required for FcepsilonRI signals by IgE rather than IgE plus Ag. Survival impaired in LAT(-/-) NTAL(-/-) BMMCs was restored to levels comparable to those of the wild type by membrane-targeted Sos, which bypasses the Grb2-mediated membrane recruitment of Sos. The IgE-induced survival of BMMCs lacking Gads, an adaptor critical for the formation of the LAT-SLP-76-phospholipase Cgamma (PLCgamma) complex, was observed to be normal. IgE stimulation induced the membrane retention of Grb2-green fluorescent protein fusion proteins in wild-type but not LAT(-/-) NTAL(-/-) BMMCs. These results suggest that LAT and NTAL contribute to the maintenance of Erk activation and survival through the membrane retention of the Ras-activating complex Grb2-Sos and, further, that the LAT-Gads-SLP-76-PLCgamma and LAT/NTAL-Grb2-Sos pathways are differentially required for degranulation and survival, respectively.
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Affiliation(s)
- Sho Yamasaki
- Laboratory for Cell Signaling, RIKEN Research Center for Allergy and Immunology, Yokohama, Kanagawa, Japan
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25
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Masuda A, Hashimoto K, Yokoi T, Doi T, Kodama T, Kume H, Ohno K, Matsuguchi T. Essential role of GATA transcriptional factors in the activation of mast cells. J Immunol 2007; 178:360-8. [PMID: 17182574 DOI: 10.4049/jimmunol.178.1.360] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Mast cells are pivotal effector cells in IgE-mediated allergic reactions. GATA transcriptional factors such as GATA-1 and GATA-2 are expressed in mast cells, and recent studies have revealed that both GATA-1 and GATA-2 are required for mast cell development. However, the role of GATA transcriptional factors in differentiated mast cells has remained largely unknown. In this study, we repressed the activity of GATA-1 and GATA-2 by using three different approaches (inducible overexpression of a dominant-negative form of GATA, pharmacological inactivation, or small interfering RNA technology), and analyzed the molecular mechanisms of GATA transcriptional factors in the activation of mast cells. Surprisingly, the repression of GATA activity in differentiated mast cells led to the impairment of cell survival, IgE-induced degranulation, and cytokine production. Signal transduction and histone modification in the chromatin related to protein kinase Cbeta were defective in these cells. These results identify that GATA has a critical role in the activation of mast cell.
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Affiliation(s)
- Akio Masuda
- Division of Neurogenetics and Bioinformatics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan.
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26
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Kitaura J, Kawakami Y, Maeda-Yamamoto M, Horejsi V, Kawakami T. Dysregulation of Src Family Kinases in Mast Cells from Epilepsy-Resistant ASK versus Epilepsy-Prone EL Mice. J Immunol 2006; 178:455-62. [PMID: 17182584 DOI: 10.4049/jimmunol.178.1.455] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
EL mice have been used as a model of epilepsy, whereas ASK mice are an epilepsy-resistant variant originating from a colony of EL mice. Mast cell-dependent anaphylaxis is easily inducible by stimulation with IgE and Ag in ASK mice, whereas EL mice are resistant to such stimuli. In this study we have characterized mast cells derived from these two strains. ASK mast cells proliferated more vigorously than EL cells in response to IL-3 and stem cell factor. Although ASK mast cells degranulated less vigorously than EL mast cells upon stimulation with IgE and Ag, ASK cells produced and secreted several-fold more TNF-alpha and IL-2 than EL cells. Consistent with the similarities of these ASK and EL mast cell responses with phenotypes of lyn(-/-) and wild-type mast cells, respectively, Lyn activity was reduced in ASK cells. In addition to the impaired Lyn activity, ASK cells just like lyn(-/-) cells exhibited reduced Syk activity, prolonged activation of ERK and JNK, and enhanced activation of Akt. Furthermore, the lipid raft-resident transmembrane adaptor protein Cbp/PAG that associates with Lyn was hypophosphorylated in ASK cells. Importantly, similar to lyn(-/-) cells, Fyn was hyperactivated in ASK cells. Therefore, these results are consistent with the notion that Lyn-dependent phosphorylation of Cbp/PAG negatively regulates Src family kinases. This study also suggests that reduced activity of Lyn, a negative regulator of mast cell activation, underlies the susceptibility of ASK mice to anaphylaxis and implies that dysregulation of Lyn and other Src family kinases contributes to epileptogenesis.
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Affiliation(s)
- Jiro Kitaura
- Division of Cell Biology, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037, USA
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27
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Oumouna M, Mustapha O, Datta R, Oumouna-Benachour K, Suzuki Y, Hans C, Matthews K, Fallon K, Boulares H. Poly(ADP-ribose) polymerase-1 inhibition prevents eosinophil recruitment by modulating Th2 cytokines in a murine model of allergic airway inflammation: a potential specific effect on IL-5. J Immunol 2006; 177:6489-96. [PMID: 17056581 DOI: 10.4049/jimmunol.177.9.6489] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We recently used a murine model of allergic airway inflammation to show that poly(ADP-ribose) polymerase-1 (PARP-1) plays an important role in the pathogenesis of asthma-related lung inflammation. In this study, we show that PARP-1 inhibition, by a novel inhibitor (TIQ-A) or by gene deletion, prevented eosinophilic infiltration into the airways of OVA-challenged mice. Such impairment of eosinophil recruitment appeared to take place after IgE production. OVA challenge of wild-type mice resulted in a significant increase in IL-4, IL-5, IL-10, IL-13, and GM-CSF secretions. Although IL-4 production was moderately affected in OVA-challenged PARP-1(-/-) mice, the production of IL-5, IL-10, IL-13, and GM-CSF was completely inhibited in ex vivo OVA-challenged lung cells derived from these animals. A single TIQ-A injection before OVA challenge in wild-type mice mimicked the latter effects. The marked effect PARP-1 inhibition exerted on mucus production corroborated the effects observed on the Th2 response. Although PARP-1 inhibition by gene knockout increased the production of the Th1 cytokines IL-2 and IL-12, the inhibition by TIQ-A exerted no effect on these two cytokines. The failure of lung cells derived from OVA-challenged PARP-1(-/-) mice to synthesize GM-CSF, a key cytokine in eosinophil recruitment, was reestablished by replenishment of IL-5. Furthermore, intranasal administration of IL-5 restored the impairment of eosinophil recruitment and mucus production in OVA-challenged PARP-1(-/-) mice. The replenishment of either IL-4 or IgE, however, did not result in such phenotype reversals. Altogether, these results suggest that PARP-1 plays a critical role in eosinophil recruitment by specifically regulating the cascade leading to IL-5 production.
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Affiliation(s)
- Mustapha Oumouna
- Department of Pharmacology and Experimental Therapeutics, Louisiana State University Health Sciences Center, 1901 Perdido Street, New Orleans, LA 70112, USA
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Fehrenbach K, Port F, Grochowy G, Kalis C, Bessler W, Galanos C, Krystal G, Freudenberg M, Huber M. Stimulation of mast cells via FcvarepsilonR1 and TLR2: the type of ligand determines the outcome. Mol Immunol 2006; 44:2087-94. [PMID: 17095089 DOI: 10.1016/j.molimm.2006.09.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2006] [Revised: 09/08/2006] [Accepted: 09/08/2006] [Indexed: 11/27/2022]
Abstract
Little is known about the interplay between pathophysiological processes of allergy and infection, particularly with respect to mast cell (MC)-mediated responses. The presence and recognition of pathogen-associated molecular patterns (PAMPs) might have broad impact on the development and severity of diseases. In this study, we assessed the influence of toll-like receptor 2 (TLR 2)-dependent synthetic analogs of bacterial lipopeptides (LPs), Pam(3)CSK(4) and MALP-2, on Ag (DNP-HSA)-triggered responses in bone marrow-derived MCs (BMMCs). Both LPs strongly synergized with sub-optimal amounts of Ag in the stimulation of cytokine release. Intriguingly, Pam(3)CSK(4), but not MALP-2 suppressed Ag-induced degranulation of BMMCs (together with early tyrosine phosphorylation and calcium mobilization) in a TLR2-independent manner. Further analysis revealed that Pam(3)CSK(4), most probably by electrostatic forces, reduced the level of active DNP-HSA and that this, in turn, was responsible for the suppression of Ag-induced degranulation. Thus, our work demonstrates that LPs can synergize with IgE+Ag in stimulating the production of IL-6 by BMMCs. As well, our findings with Pam(3)CSK(4) indicate that one must be cautious when interpretating results obtained with "model" substances and the combination of ligands must be carefully chosen when functional interactions between the high-affinity receptor for IgE (FcepsilonR1) and TLR2 are examined.
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Affiliation(s)
- Kerstin Fehrenbach
- Department of Molecular Immunology, Biology III, University of Freiburg, Stübeweg 51, 79108 Freiburg, Germany
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Zaitsu M, Narita SI, Lambert KC, Grady JJ, Estes DM, Curran EM, Brooks EG, Watson CS, Goldblum RM, Midoro-Horiuti T. Estradiol activates mast cells via a non-genomic estrogen receptor-alpha and calcium influx. Mol Immunol 2006; 44:1977-85. [PMID: 17084457 PMCID: PMC2603032 DOI: 10.1016/j.molimm.2006.09.030] [Citation(s) in RCA: 181] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2006] [Revised: 09/21/2006] [Accepted: 09/25/2006] [Indexed: 12/26/2022]
Abstract
BACKGROUND Allergic airway diseases are more common in females than in males during early adulthood. A relationship between female hormones and asthma prevalence and severity has been suggested, but the cellular and molecular mechanisms are not understood. OBJECTIVE To elucidate the mechanism(s) by which estrogens enhance the synthesis and release of mediators of acute hypersensitivity. METHODS Two mast cell/basophil cell lines (RBL-2H3 and HMC-1) and primary cultures of bone marrow derived mast cells, all of which naturally express estrogen receptor-alpha, were examined. Cells were incubated with physiological concentrations of 17-beta-estradiol with and without IgE and allergens. Intracellular Ca(2+) concentrations and the release of beta-hexosaminidase and leukotriene C(4) were quantified. RESULTS Estradiol alone induced partial release of the preformed, granular protein beta-hexosaminidase from RBL-2H3, BMMC and HMC-1, but not from BMMC derived from estrogen receptor-alpha knock-out mice. The newly synthesized LTC(4) was also released from RBL-2H3. Estradiol also enhanced IgE-induced degranulation and potentiated LTC(4) production. Intracellular Ca(2+) concentration increased prior to and in parallel with mediator release. Estrogen receptor antagonists or Ca(2+) chelation inhibited these estrogenic effects. CONCLUSION Binding of physiological concentrations of estradiol to a membrane estrogen receptor-alpha initiates a rapid onset and progressive influx of extracellular Ca(2+), which supports the synthesis and release of allergic mediators. Estradiol also enhances IgE-dependent mast cell activation, resulting in a shift of the allergen dose response.
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Affiliation(s)
- Masafumi Zaitsu
- Department of Pediatrics, Child Health Research Center, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555-0366, USA
| | - Shin-Ichiro Narita
- Department of Pediatrics, Child Health Research Center, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555-0366, USA
| | - K. Chad Lambert
- Department of Pediatrics, Child Health Research Center, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555-0366, USA
| | - James J. Grady
- Department of Preventive Medicine and Community Health, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555-1148, USA
| | - D. Mark Estes
- Department of Pediatrics, Child Health Research Center, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555-0366, USA
| | - Edward M. Curran
- Department of Pediatrics, Child Health Research Center, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555-0366, USA
| | - Edward G. Brooks
- Department of Pediatrics, Child Health Research Center, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555-0366, USA
| | - Cheryl S. Watson
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555-0645, USA
| | - Randall M. Goldblum
- Department of Pediatrics, Child Health Research Center, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555-0366, USA
| | - Terumi Midoro-Horiuti
- Department of Pediatrics, Child Health Research Center, University of Texas Medical Branch, 301 University Blvd., Galveston, TX 77555-0366, USA
- Corresponding author. Tel.: +1 409 772 3832; fax: +1 409 772 1761. E-mail address: (T. Midoro-Horiuti)
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Abstract
Lipid rafts are membrane microdomains rich in cholesterol and glycosphingolipids that have been implicated in the regulation of intracellular protein trafficking. During exocytosis, a class of proteins termed SNAREs mediate secretory granule-plasma membrane fusion. To investigate the role of lipid rafts in secretory granule exocytosis, we examined the raft association of SNARE proteins and SNARE complexes in rat basophilic leukemia (RBL) mast cells. The SNARE protein SNAP-23 co-localized with a lipid raft marker and was present in detergent-insoluble lipid raft microdomains in RBL cells. By contrast, only small amounts (<20%) of the plasma membrane SNARE syntaxin 4 or the granule-associated SNARE vesicle-associated membrane protein (VAMP)-2 were present in these microdomains. Despite this, essentially all syntaxin 4 and most of VAMP-2 in these rafts were present in SNARE complexes containing SNAP-23, while essentially none of these complexes were present in nonraft membranes. Whereas SNAP-23 is membrane anchored by palmitoylation, the association of the transmembrane protein syntaxin 4 with lipid rafts was because of its binding to SNAP-23. After stimulating mast cells exocytosis, the amount of syntaxin 4 and VAMP-2 present in rafts increased twofold, and these proteins were now present in raft-associated phospho-SNAP-23/syntaxin 4/VAMP-2 complexes, revealing differential association of SNARE fusion complexes during the process of regulated exocytosis.
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Affiliation(s)
- Niti Puri
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
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Abe M, Hama H, Shirakusa T, Iwasaki A, Ono N, Kimura N, Hugli TE, Okada N, Katsuragi T, Okada H. Contribution of anaphylatoxins to allergic inflammation in human lungs. Microbiol Immunol 2006; 49:981-6. [PMID: 16301808 DOI: 10.1111/j.1348-0421.2005.tb03693.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The contribution of complement activation to allergic asthma remains controversial. In order to elucidate the role played by the complement split products, anaphylatoxins C3a and C5a, we evaluated their effects on production of cysteinyl-leukotrienes (cysLTs) by human lung fragments following an anaphylactic reaction. The lung tissues obtained from two patients with lung cancer showed C5aR-, C5L2R-, and C3aR-mRNA expression. When the chopped lung fragments passively sensitized with human IgE were incubated with anti-human IgE antibody, a significant amount of cysLTs was generated in comparison with the control (without anti-IgE antibody). The co-addition of human C5a at doses of 0.1 to 10 ng/ml to the anti-IgE antibody potentiated cysLT production. The response was bell-shaped in distribution, significant, and peaked at a C5a concentration of 1 ng/ml. The co-addition of human C3a up to 1,000 ng/ml seemed to increase cysLT production, but not to any significant extent. A novel C5a receptor complementary peptide, acetylated peptide A, dose-dependently inhibited cysLT production by the human lung fragments following the anaphylactic reaction in the presence of 1 ng/ml C5a. However, this peptide did not inhibit cysLT production in the presence of 100 ng/ml C3a. It is suggested that the anaphylatoxin C5a potentiates cysLT production in human lung tissues and contributes to allergic inflammation in disorders such as asthma, thus acetylated peptide A may be useful for suppressing allergic inflammation in the lungs.
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Affiliation(s)
- Masayoshi Abe
- Department of Pharmacology, School of Medicine, Fukuoka University, Fukuoka, Japan.
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32
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Barral P, Villalba M, Rodriguez R, Batanero E. The role of major olive pollen allergens Ole e 1, Ole e 9, and Ole e 10 on mice sensitization. Ann Allergy Asthma Immunol 2006; 96:466-71. [PMID: 16597082 DOI: 10.1016/s1081-1206(10)60915-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Olive pollen is an important cause of allergy in Mediterranean countries. To date, 10 allergens (Ole e 1 to Ole e 10) have been isolated and characterized. Animal models of olive pollen allergy are suitable tools for testing the efficacy and safety of new forms of immunotherapy. OBJECTIVES To characterize the immune response in mice sensitized with olive pollen extract and to compare it with that of allergic patients. METHODS BALB/c mice were sensitized by 4 intraperitoneal injections of olive pollen extract in aluminum hydroxide. The allergic state was proved by measuring serum specific IgG1 and total IgE antibody levels. The IgG1 responses to olive pollen allergens were assayed by immunoblotting and enzyme-linked immunosorbent assay. Competition experiments between human IgE and mouse IgG1 binding to olive pollen allergens were performed. RESULTS Sensitization with olive pollen extract induced high levels of specific IgG1 and total IgE in all tested animals. Immunoblotting experiments showed that the mouse IgG1 binding pattern to pollen extract was complex and heterogeneous, as occurs with human IgE. High IgG1 antibody levels to the major olive pollen allergens described for humans were detected in serum samples from sensitized mice, whereas minor olive pollen allergens induced no significant IgG1 response. Coincubation of mouse serum samples with a cocktail of Ole e 1, Ole e 9, and Ole e 10 resulted in a significant decrease (60%) in IgG1 binding to olive pollen extract. Specific mouse IgG1 strongly inhibited human IgE binding to olive pollen allergens. CONCLUSIONS This mouse model of olive pollen sensitization mimics immunologic features of human pollinosis and could be a useful tool for designing novel forms of immunotherapy for olive pollen allergy based on allergen cocktails.
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Affiliation(s)
- Patricia Barral
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas, Universidad Complutense, Madrid, Spain
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Li HW, McCloskey M, He Y, Yeung ES. Real-time dynamics of label-free single mast cell granules revealed by differential interference contrast microscopy. Anal Bioanal Chem 2006; 387:63-9. [PMID: 16633786 DOI: 10.1007/s00216-006-0403-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2005] [Revised: 02/22/2006] [Accepted: 02/27/2006] [Indexed: 10/24/2022]
Abstract
We demonstrate the capability of differential interference contrast (DIC) microscopy as a simple and useful tool for studying cellular events without fluorescence labeling. By coupling an advanced DIC microscope to a computer-controlled motorized vertical stage and a high-speed, high-resolution CCD camera, real-time three-dimensional monitoring is possible in a high-throughput manner. The performance among three modes of microscopy, bright-field, dark-field and DIC, in terms of horizontal resolving power and vertical sectioning was investigated. As a model, exocytosis of rat peritoneal mast cells was recorded on the subsecond time scale. Three-dimensional tracking of granules during degranulation was achieved and granule-granule fusion before plasma membrane fusion was recorded.
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Affiliation(s)
- Hung-Wing Li
- Ames Laboratory-USDOE and Department of Chemistry, Iowa State University, Ames, IA 50011, USA
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Abstract
Fibrocytes are fibroblast-like cells, which appear to participate in wound healing and are present in pathological lesions associated with asthma, pulmonary fibrosis, and scleroderma. Fibrocytes differentiate from CD14+ peripheral blood monocytes, and the presence of serum delays this process dramatically. We previously purified the factor in serum, which inhibits fibrocyte differentiation, and identified it as serum amyloid P (SAP). As SAP binds to Fc receptors for immunoglobulin G (IgG; Fc gammaRs), Fc gammaR activation may be an inhibitory signal for fibrocyte differentiation. Fc gammaR are activated by aggregated IgG, and we find aggregated but not monomeric, human IgG inhibits human fibrocyte differentiation. Monoclonal antibodies that bind to Fc gammaRI (CD64) or Fc gammaRII (CD32) also inhibit fibrocyte differentiation. Aggregated IgG lacking Fc domains or aggregated IgA, IgE, or IgM do not inhibit fibrocyte differentiation. Incubation of monocytes with SAP or aggregated IgG inhibited fibrocyte differentiation. Using inhibitors of protein kinase enzymes, we show that Syk- and Src-related tyrosine kinases participate in the inhibition of fibrocyte differentiation. These observations suggest that fibrocyte differentiation can occur in situations where SAP and aggregated IgG levels are low, such as the resolution phase of inflammation.
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Affiliation(s)
- Darrell Pilling
- Department of Biochemistry and Cell Biology, Rice University, Houston, TX 77005-1892, USA.
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35
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Kimata M, Ishizaki M, Tanaka H, Nagai H, Inagaki N. Production of matrix metalloproteinases in human cultured mast cells: involvement of protein kinase C-mitogen activated protein kinase kinase-extracellular signal-regulated kinase pathway. Allergol Int 2006; 55:67-76. [PMID: 17075289 DOI: 10.2332/allergolint.55.67] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2005] [Accepted: 08/23/2005] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Matrix metalloproteinases (MMPs) have been reported to play crucial roles in the migration of inflammatory cells through basement membrane components. To confirm the role of mast cells as a source of MMPs, we investigated the production of MMP and its pathway in human cultured mast cells (HCMC). We also investigated the production of tissue inhibitors of metalloproteinase (TIMPs). METHODS HCMC was stimulated with phorbor 12-miristate 13-acetate (PMA) and/or calcium ionophore A23187 (A23187), and the resulting MMP production was evaluated by gelatin zymography and western blotting. Expression of MMP and TIMP mRNA was also examined. Granulocyte macrophage-colony stimulating factor (GM-CSF) was measured by ELISA and activation of extracellular signal-regulated kinase (ERK) was evaluated by western blotting. RESULTS We detected the de novo synthesis of MMP-9 in HCMC after stimulation with PMA and found that the synthesis was mediated through protein kinase C-mitogen activated protein kinase kinase (MEK)-ERK pathway. The MMP-9 production induced by PMA was suppressed by simultaneous treatment with A23187, whereas GM-CSF production was potentiated. We also detected the expression of mRNA for membrane-type 1 (MT1)-MMP, TIMP-1 and TIMP-2 after stimulation with PMA. Glucocorticoids and flavonoids inhibited MMP-9 production, and TIMPs and MMP inhibitors inhibited the gelatinolytic activity of mast cell-derived MMP-9. Furthermore, phenylmethylsulfonyl fluoride, a protease inhibitor, inhibited the conversion from proMMP-9 to active MMP-9. CONCLUSIONS These results suggest that the human mast cell is a leading member of MMP production, and the production, activation and activity are controllable by pharmacological agents.
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Affiliation(s)
- Masahiro Kimata
- Department of Pharmacology, Gifu Pharmaceutical University, Gifu, Japan
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36
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Abstract
Mast cells play an important role for the induction and the expression of allergic responses. In this report, we studied the strain difference of bone marrow-derived murine mast cell (BMMC) functions in vitro. BMMC were induced by in vitro culture of bone marrow cells from BALB/c and C57BL/6 mice with interleukin (IL)-3 for 4 weeks, stimulated with immunoglobulin E antibody and antigen, and mediators and cytokines released in the culture supernatant were assayed. BMMC from C57BL/6 mice released a higher amount of granule-associated mediators, beta-hexosaminidase, and histamine than that from BALB/c mice. The expression of mRNA of histidine decarboxylase was higher in C57BL/6 mice. Conversely, the productions of newly synthesized mediators, prostaglandin D2 (PGD2), IL-6, and monocyte chemoattractant protein-1, and the mRNA expression of IL-5 were higher in BALB/c BMMC than C57BL/6 BMMC. Although mRNA and protein expression levels of cyclooxygenase-2 were equal in two strains, both expression levels of hematopoietic PGD synthase (hPGDS) were higher in BALB/c BMMC. Mast cells, freshly obtained from mice, also showed the same strain difference concerning the mediator release. These results indicate that the strain difference exists in mast cell functions in mice, and this difference can be considered to induce the susceptibility difference to allergic reactions in mouse strains.
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Affiliation(s)
- Junko Noguchi
- School of Medicine, University of Occupational and Environmental Health, Japan, 1-1 Iseigaoka, Yahatanishiku, Kitakyushu 807-8555, Japan
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37
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Zaitsu M, Yamasaki F, Ishii E, Midoro-Horiuti T, Goldblum RM, Hamasaki Y. Interleukin-18 primes human basophilic KU812 cells for higher leukotriene synthesis. Prostaglandins Leukot Essent Fatty Acids 2006; 74:61-6. [PMID: 16280246 DOI: 10.1016/j.plefa.2005.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2005] [Revised: 09/13/2005] [Accepted: 09/26/2005] [Indexed: 10/25/2022]
Abstract
The human basophilic cell line KU812 that is an established tool for studying the function of human basophils, is differentiated into mature basophils by interleukin (IL-3) or other agents. However, whether leukotrienes (LTs)-synthesis is affected by cytokines in KU812 cells remains unknown. KU812 cells were incubated with IL-3, IL-4, IL-6, IL-13 or IL-18 for up to 14 days. The A23187 stimulated- and IgE cross-linked-synthesis of LTC(4) and LTB(4) were measured using an enzyme immunoassay (EIA). The expression of messenger RNA (mRNA) for LT-synthesizing enzymes was examined by reverse transcriptase polymerase chain reaction (RT-PCR), and the expression of 5-lipoxygenase (5-LO) was examined by immunostaining. Incubation with IL-3 (10 ng/ml) and IL-18 (10 ng/ml) induced the expression of 5-LO. A23187stimulated LT-synthesis and IgE cross-linked LT-synthesis were enhanced after incubation with IL-3 or IL-18. These results indicated that IL-3 and IL-18 primed human basophils for higher LT-synthesis. Thus, both IL-3 and IL-18 might be important factors for regulating LT-synthesis during the differentiation of human basophils.
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Affiliation(s)
- Masafumi Zaitsu
- Department of Pediatrics, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga City 849-8501, Japan.
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Kim JW, Inagaki Y, Mitsutake S, Maezawa N, Katsumura S, Ryu YW, Park CS, Taniguchi M, Igarashi Y. Suppression of mast cell degranulation by a novel ceramide kinase inhibitor, the F-12509A olefin isomer K1. Biochim Biophys Acta Mol Cell Biol Lipids 2005; 1738:82-90. [PMID: 16352467 DOI: 10.1016/j.bbalip.2005.10.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2005] [Revised: 10/14/2005] [Accepted: 10/26/2005] [Indexed: 11/22/2022]
Abstract
Antigen-induced degranulation of mast cells plays a pivotal role in allergic and inflammatory responses. Recently, ceramide kinase (CERK) and its phosphorylated product ceramide 1-phosphate (C1P) have emerged as important players in mast cell degranulation. Here, we describe the synthesis of a novel F-12509A olefin isomer, K1, as an effective CERK inhibitor. In vitro kinase assays demonstrated that K1 effectively inhibits CERK without inhibiting sphingosine kinase and diacylglycerol kinase. Treating RBL-2H3 cells with K1 reduced cellular C1P levels to 40% yet had no effect on cell growth. Furthermore, treatment with K1 significantly suppressed both calcium ionophore- and IgE/antigen-induced degranulation, indicating that K1 interferes with signals that happen downstream of Ca(2+) mobilization. Finally, we show that K1 affects neither IgE/antigen-induced global tyrosine phosphorylation nor subsequent Ca(2+) elevation, suggesting a specificity for CERK-mediated signals. Our novel CERK inhibitor provides a useful tool for studying the biological functions of CERK and C1P. Moreover, to our knowledge, this is the first report demonstrating that inhibition of CERK suppresses IgE/antigen-induced mast cell degranulation. This finding suggests that CERK inhibitors might be a potential therapeutic tool in the treatment of allergic diseases.
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Affiliation(s)
- Jin-Wook Kim
- Department of Biomembrane and Biofunctional Chemistry, Graduate School of Pharmaceutical Science, Hokkaido University, Kita 12, Nishi 6, Kita-ku, Sapporo 060-0812, Japan
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Licht A, Abramson J, Pecht I. Co-clustering activating and inhibitory receptors: impact at varying expression levels of the latter. Immunol Lett 2005; 104:166-70. [PMID: 16423412 DOI: 10.1016/j.imlet.2005.11.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2005] [Revised: 11/22/2005] [Accepted: 11/22/2005] [Indexed: 11/25/2022]
Abstract
Clustering the mast cell function-associated antigen (MAFA) has earlier been shown to inhibit mast cells' secretory response to the type 1 Fcepsilon receptor (FcepsilonRI) stimulus. MAFA is a type II membrane glycoprotein first identified on rat mast cells and contains an immunoreceptor tyrosine-based inhibitory motif (ITIM) in its cytosolic domain. This inhibition is induced already upon clustering MAFA alone. Still, the inhibitory capacity of MAFA-FcepsilonRI co-clustering has recently been characterized and co-clustered MAFA molecules were found to exhibit a markedly higher inhibition capacity than MAFA-clusters alone. We have now compared the inhibitory capacity of FcepsilonRI co-clustered MAFA on the secretory response of rat mucosal-type mast cells (RBL-2H3 line) expressing different levels of this inhibitory protein. Reacting these cells carrying an IgE class, 2,4 dinitrophenyl (DNP)-specific monoclonal antibody with DNP-conjugated F(ab')2 fragments of non-specific polyclonal mouse IgG causes clustering of the FcepsilonRI-IgE. Reaction of these cells with DNP-conjugated F(ab')2 fragments of the MAFA-specific, monoclonal antibody G63 co-aggregates MAFA together with the FcepsilonRI-IgE thereby producing FcepsilonRI-IgE-MAFA co-clusters. Results of measurements of the secretory responses of RBL-2H3 cells expressing higher or lower MAFA levels than those of unmodified cells provided further support to the notion that co-clustered MAFA molecules exhibit a markedly higher inhibition capacity than MAFA-clusters alone. The molecular basis for this enhanced inhibition is most probably the increased concentration of the inhibitory cell components in the immediate proximity of the co-clustered FcepsilonRI-MAFA.
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Affiliation(s)
- Arieh Licht
- Department of Immunology, The Weizmann Institute of Science, Rehovot 76100, Israel
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Suzuki Y, Yoshimaru T, Inoue T, Ra C. Mitochondrial Ca2+ flux is a critical determinant of the Ca2+ dependence of mast cell degranulation. J Leukoc Biol 2005; 79:508-18. [PMID: 16365155 DOI: 10.1189/jlb.0705412] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
An increase in intracellular Ca2+ ([Ca2+]i) is necessary for mast cell exocytosis, but there is controversy over the requirement for Ca2+ in the extracellular medium. Here, we demonstrate that mitochondrial function is a critical determinant of Ca2+ dependence. In the presence of extracellular Ca2+, mitochondrial metabolic inhibitors, including rotenone, antimycin A, and the protonophore carbonyl cyanide p-trifluoromethoxyphenylhydrazone (FCCP), significantly reduced degranulation induced by immunoglobulin E (IgE) antigen or by thapsigargin, as measured by beta-hexosaminidase release. In the absence of extracellular Ca2+; however, antimycin A and FCCP, but not rotenone, enhanced, rather than reduced, degranulation to a maximum of 76% of that observed in the presence of extracellular Ca2+. This enhancement of extracellular, Ca2+-independent degranulation was concomitant with a rapid collapse of the mitochondrial transmembrane potential. Mitochondrial depolarization did not enhance degranulation induced by thapsigargin, irrespective of the presence or absence of extracellular Ca2+. IgE antigen was more effective than thapsigargin as an inducer of [Ca2+]i release, and mitochondrial depolarization augmented IgE-mediated but not thapsigargin-induced Ca2+ store release and mitochondrial Ca2+ ([Ca2+]m) release. Finally, atractyloside and bongkrekic acid [an agonist and an antagonist, respectively, of the mitochondrial permeability transition pore (mPTP)], respectively, augmented and reduced IgE-mediated Ca2+ store release, [Ca2+]m release, and/or degranulation, whereas they had no effects on thapsigargin-induced Ca2+ store release. These data suggest that the mPTP is involved in the regulation of Ca2+ signaling, thereby affecting the mode of mast cell degranulation. This finding may shed light on a new role for mitochondria in the regulation of mast cell activation.
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Affiliation(s)
- Yoshihiro Suzuki
- Divisionof Molecular Cell Immunology and Allergology, Advanced Medical Research Center, Nihon University Graduate School of Medical Sciences, 30-1 Oyaguchikami-cho Itabashi-ku, Tokyo 173-8610, Japan.
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Bachelet I, Munitz A, Moretta A, Moretta L, Levi-Schaffer F. The Inhibitory Receptor IRp60 (CD300a) Is Expressed and Functional on Human Mast Cells. J Immunol 2005; 175:7989-95. [PMID: 16339535 DOI: 10.4049/jimmunol.175.12.7989] [Citation(s) in RCA: 117] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Mast cell-mediated responses are likely to be regulated by the cross talk between activatory and inhibitory signals. We have screened human cord blood mast cells for recently characterized inhibitory receptors expressed on NK cells. We found that IRp60, an Ig superfamily member, is expressed on human mast cells. On NK cells, IRp60 cross-linking leads to the inhibition of cytotoxic activity vs target cells in vitro. IRp60 is constitutively expressed on mast cells but is down-regulated in vitro by the eosinophil proteins major basic protein and eosinophil-derived neurotoxin. An immune complex-mediated cross-linking of IRp60 led to inhibition of IgE-induced degranulation and stem cell factor-mediated survival via a mechanism involving tyrosine phosphorylation, phosphatase recruitment, and termination of cellular calcium influx. To evaluate the role of IRp60 in regulation of allergic responses in vivo, a murine model of allergic peritonitis was used in which the murine homolog of IRp60, LMIR1, was neutralized in BALB/c mice by mAbs. This neutralization led to a significantly augmented release of inflammatory mediators and eosinophilic infiltration. These data demonstrate a novel pathway for the regulation of human mast cell function and allergic responses, indicating IRp60 as a candidate target for future treatment of allergic and mast cell-associated diseases.
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Affiliation(s)
- Ido Bachelet
- Department of Pharmacology, School of Pharmacy, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
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Kim SH, Jun CD, Suk K, Choi BJ, Lim H, Park S, Lee SH, Shin HY, Kim DK, Shin TY. Gallic Acid Inhibits Histamine Release and Pro-inflammatory Cytokine Production in Mast Cells. Toxicol Sci 2005; 91:123-31. [PMID: 16322071 DOI: 10.1093/toxsci/kfj063] [Citation(s) in RCA: 329] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The discovery of drugs for the treatment of inflammatory allergic diseases such as, asthma, allergic rhinitis, and sinusitis is a very important subject in human health. Gallic acid (3,4,5-trihydroxybenzoic acid), a polyphenyl natural products from gallnut and green tea, is known to have anti-oxidant, anti-inflammatory, anti-microbial, and radical scavenging activities. The aim of the present study was to elucidate whether gallic acid modulates the inflammatory allergic reaction and to study its possible mechanisms of action. Gallic acid attenuated compound 48/80- or immunoglobulin E (IgE)-induced histamine release from mast cells. The inhibitory effect of gallic acid on the histamine release was mediated by the modulation of cAMP and intracellular calcium. Gallic acid decreased the phorbol 12-myristate 13-acetate plus calcium ionophore A23187-stimulated pro-inflammatory cytokine gene expression and production such as TNF-alpha and IL-6 in human mast cells. The inhibitory effect of gallic acid on the pro-inflammatory cytokine was nuclear factor-kappaB and p38 mitogen-activated protein kinase dependent. In addition, gallic acid inhibited compound 48/80-induced systemic allergic reaction and IgE-mediated local allergic reaction. The inhibitory activity of gallic acid on the allergic reaction and histamine release was found to be similar with disodium cromoglycate. Our findings provide evidence that gallic acid inhibits mast cell-derived inflammatory allergic reactions by blocking histamine release and pro-inflammatory cytokine expression, and suggest the mechanisms of action. Furthermore, in vivo and in vitro anti-allergic effect of gallic acid suggests a possible therapeutic application of this agent in inflammatory allergic diseases.
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Affiliation(s)
- Sang-Hyun Kim
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, 700-422, Republic of Korea
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Barbu AE, Pecht I. Desensitization of mast cells' secretory response to an immuno-receptor stimulus. Immunol Lett 2005; 100:78-87. [PMID: 16111771 DOI: 10.1016/j.imlet.2005.06.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2005] [Revised: 05/31/2005] [Accepted: 06/24/2005] [Indexed: 10/25/2022]
Abstract
Knowledge of the desensitization process of responses to the type I receptor for IgE (FcepsilonRI) is rather limited. We investigated whether mast cells' secretory response to this receptor's stimulus can be subjected to desensitization under protocols usually employed for hormonal or neural receptors, i.e. by excessive, prolonged or repetitive exposure to the stimulus. To study this we have employed the rat mucosal-type mast cells of the RBL-2H3 line, which enables a rigorous examination of the response to the FcepsilonRI stimulus. These cells exhibited a marked decrease of both, secretion of granule-stored and de novo synthesized mediators to an optimal stimulation, when first exposed to prolonged FcepsilonRI-IgE clustering by specific antigen (DNP(11)-BSA) or by the IgE specific mAb 95.3 at concentrations that are below the threshold of inducing secretion. The extent of desensitization depended on the employed concentrations of IgE and on the clustering agents, as well as on the length of the desensitization period. The levels of cell surface FcepsilonRI expression and of cell-bound IgE were determined following the desensitization period and no significant correlation has been observed between the extent of endocytosis and the observed desensitization. Thus, a different process, which interferes with FcepsilonRI stimulus-response coupling network, is responsible for the observed desensitization.
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Affiliation(s)
- Alina E Barbu
- Department of Immunology, The Weizmann Institute of Science, 76100 Rehovot, Israel.
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Abstract
Mast cells are involved in both the genesis of allergic inflammation and in host defense; and reside in tissues where their location and responsiveness is regulated in part by adhesion to extracellular matrix proteins (ECM). We have reported that human mast cells (huMC) express TLR1-7, and 9 and respond to toll-like receptors (TLR) ligands by releasing cytokines and leukotriene C4. To determine if TLR ligation could similarly affect mast cells via an influence on adhesion, we employed huMC; and as substrates, fibronectin (FN) and vitronectin (VN). huMC were thus treated with double-stranded RNA (dsRNA) and adhesion to ECM was quantified. FcvarepsilonRI dependent mast cell degranulation was assessed. Adhesion molecule expression and activation was measured by flow cytometry. Activation of huMC through TLR3 with increasing amounts of polyI:C inhibited mast cell adhesion in a dose-dependent manner. This decrease in adhesion was accompanied by a similar decrease in IgE-mediated mast cell degranulation. Activation of TLR3 on huMC resulted in a change in the conformation of CD29, the receptor for FN, to an inactive form. Thus, TLR3 activation decreases mast cell attachment to VN and FN through an active process and one, which would abrogate mast cell attachment dependent potentiation of IgE-mediated responses.
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Affiliation(s)
- M Kulka
- Allergy-Immunology Division, Northwestern University Feinberg School of Medicine, 240 E Huron McGaw Pavilion #2305, Chicago, IL, USA
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Matsuda K, Piliponsky AM, Iikura M, Nakae S, Wang EW, Dutta SM, Kawakami T, Tsai M, Galli SJ. Monomeric IgE enhances human mast cell chemokine production: IL-4 augments and dexamethasone suppresses the response. J Allergy Clin Immunol 2005; 116:1357-63. [PMID: 16337471 DOI: 10.1016/j.jaci.2005.08.042] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2004] [Revised: 08/15/2005] [Accepted: 08/24/2005] [Indexed: 11/19/2022]
Abstract
BACKGROUND Mouse monoclonal IgE antibodies can promote the survival of mouse bone marrow-derived cultured mast cells and induce the cells to secrete mediators in the absence of known specific antigen. OBJECTIVE To determine whether human IgE, in the absence of known specific antigen, had effects on the mediator secretion or survival of human mast cells. METHODS We tested whether human IgE induced human cord blood-derived mast cells to secrete mediators or enhanced their survival on withdrawal of stem cell factor. RESULTS Exposure to IgE, but not IgG, at concentrations as low as 2.5 microg/mL significantly enhanced the release of IL-8 and monocyte chemoattractant protein 1, but not histamine or cysteinyl leukotrienes. However, under the conditions tested, chemokine production in response to IgE alone was significantly less than that induced when aliquots of the same IgE-sensitized populations of human mast cells were stimulated with anti-IgE. The production of IL-8 and monocyte chemoattractant protein 1 in response to either IgE alone or IgE and anti-IgE was enhanced by preincubation of the cells in IL-4 and was inhibited by preincubation of the cells with dexamethasone. By contrast, we did not detect any ability of IgE to enhance mast cell survival on withdrawal of stem cell factor. CONCLUSION Exposure to human IgE in vitro in the absence of known specific antigen can enhance chemokine production by human mast cells, and this secretory response can be enhanced by preincubation of the mast cells with IL-4 and can be suppressed by dexamethasone.
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Affiliation(s)
- Kentaro Matsuda
- Department of Pathology, Stanford University School of Medicine, CA 94305-5324, USA
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Kashyap M, Bailey DP, Gomez G, Rivera J, Huff TF, Ryan JJ. TGF-β1 inhibits late-stage mast cell maturation. Exp Hematol 2005; 33:1281-91. [PMID: 16263412 DOI: 10.1016/j.exphem.2005.07.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2004] [Revised: 07/15/2005] [Accepted: 07/20/2005] [Indexed: 01/09/2023]
Abstract
OBJECTIVE The objective of this study was to determine the effects of transforming growth factor (TGF)-beta1 on mast cell development. MATERIALS AND METHODS Mast cells were cultured from mouse bone marrow in interleukin (IL)-3 + stem cell factor, in the presence or absence of TGF-beta1. We assessed mast cell development by measuring the expression of kit, T1/ST2, FcvarepsilonRI, and Fcgamma receptors. Cell morphology was determined by histochemical staining. Alterations in FcvarepsilonRI subunit expression were measured by Western blot analysis. Adoptive transfer of cultured mast cells into mast cell-deficient W/W(v) mice was used to determine if the in vivo environment could reverse the inhibitory effects of TGF-beta1. RESULTS TGF-beta1 decreased FcvarepsilonRI, c-kit, T1/ST2, and FcgammaR expression, and inhibited granule formation in developing mast cells. Accessory cells were not required for this inhibition. Smad3 deficiency did not alter the response of bone marrow cells to TGF-beta1. TGF-beta1 inhibited expression of the FcvarepsilonRI alpha subunit protein, without decreasing beta or gamma proteins. Mast cells derived in the presence of TGF-beta1 were functionally impaired, as IgE-mediated cytokine secretion was greatly reduced. The changes in granule formation and surface antigen expression were long-standing, as they were not reversed by transfer to W/W(v) mice. CONCLUSIONS TGF-beta1 may contribute to mast cell homeostasis by inhibiting maturation from bone marrow precursors. The effects of TGF-beta1 result in greatly diminished expression of cell surface markers, reduced granulation, and lack of responsiveness to IgE-mediated activation. Thus TGF-beta1 can serve as a potent and multifunctional regulator of mast cell maturation.
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Affiliation(s)
- Mohit Kashyap
- Department of Biology, Virginia Commonwealth University, Richmond, VA 23284-2012, USA
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Schroeder JT, Bieneman AP, Xiao H, Chichester KL, Vasagar K, Saini S, Liu MC. TLR9- and FcεRI-Mediated Responses Oppose One Another in Plasmacytoid Dendritic Cells by Down-Regulating Receptor Expression. J Immunol 2005; 175:5724-31. [PMID: 16237063 DOI: 10.4049/jimmunol.175.9.5724] [Citation(s) in RCA: 123] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Plasmacytoid dendritic cells (pDC) express not only TLR9 molecules through which ligation with CpG DNA favors Th1 responses but also possess IgE receptors (FcepsilonRI) implicated in allergen presentation and induction of Th2 responses. This dichotomy prompted an investigation to determine whether TLR9- and IgE receptor-mediated responses oppose one another in pDC by affecting receptor expression and associated functional responses. Results showed that IgE cross-linking reduced TLR9 in pDC and inhibited the capacity of these cells to secrete IFN-alpha when stimulated with the CpG oligodeoxynucleotide (ODN)-2216. In contrast, an approximately 15-fold reduction in FcepsilonRIalpha mRNA and a loss in surface protein were seen in pDC first exposed to TLR9 ligation with ODN-2216. Results indicated that type I IFNs partly mediated this effect, as rIFN-alpha also caused a significant approximately 4-fold reduction in FcepsilonRIalpha mRNA. Finally, this reduction in FcepsilonRIalpha mediated by ODN-2216 correlated with a selective suppression of allergen-induced CD4+ T cell proliferation, but not of responses resulting from tetanus toxoid. Overall, these results imply mechanisms by which specific innate and IgE-dependent immune responses counterregulate one another at the dendritic cell level and may have significant impact on whether an ensuing response is either of Th1 or Th2 in nature.
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Affiliation(s)
- John T Schroeder
- Department of Medicine, Division of Clinical Immunology, Johns Hopkins Asthma and Allergy Center, Johns Hopkins University, Baltimore, MD 21224, USA
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Alfredsson J, Puthalakath H, Martin H, Strasser A, Nilsson G. Proapoptotic Bcl-2 family member Bim is involved in the control of mast cell survival and is induced together with Bcl-XL upon IgE-receptor activation. Cell Death Differ 2005; 12:136-44. [PMID: 15592435 DOI: 10.1038/sj.cdd.4401537] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Mast cells play critical roles in the regulation of acute and chronic inflammations. Apoptosis is one of the mechanisms that limit and resolve inflammatory responses. Mast cell survival can be controlled by growth factors and activation of the IgE-receptor FcvarepsilonRI. Members of the Bcl-2 protein family are critical regulators of apoptosis and our study provides evidence that the proapoptotic BH3-only family member Bim is essential for growth factor deprivation-induced mast cell apoptosis and that Bim levels increase upon FcvarepsilonRI activation. Bim deficiency or Bcl-2 overexpression delayed or even prevented cytokine withdrawal-induced mast cell apoptosis in culture. The prosurvival protein Bcl-XL and the proapoptotic Bim were both induced upon FcvarepsilonRI activation. These results suggest that Bim and possibly also other BH3-only proteins control growth factor withdrawal-induced mast cell apoptosis and that the fate of mast cells upon FcvarepsilonRI activation depends on the relative levels of pro- and antiapoptotic Bcl-2 family members.
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Affiliation(s)
- J Alfredsson
- Department of Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
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Suzukawa M, Hirai K, Iikura M, Nagase H, Komiya A, Yoshimura-Uchiyama C, Yamada H, Ra C, Ohta K, Yamamoto K, Yamaguchi M. IgE- and FcepsilonRI-mediated migration of human basophils. Int Immunol 2005; 17:1249-55. [PMID: 16103029 DOI: 10.1093/intimm/dxh301] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Local accumulation of basophils at inflammatory sites is observed in experimental antigen challenge and in allergic diseases. It is not fully known what factor(s) regulates local basophil influx in tissues, and it has not been determined whether antigens belong in a panel of basophil chemoattractants. This study was designed to elucidate whether IgE- and high-affinity receptor for IgE (FcepsilonRI)-mediated stimulation can induce human basophil migration. The migration-inducing potency of an anti-FcepsilonRI alpha-chain mAb, CRA-1, was examined on human basophils. CRA-1 mAb elicited significant migration of basophils. The migration-inducing potency of this mAb was maximal at 100 ng ml-1, and CRA-1 mAb at 100 ng ml-1 attracted approximately 10% of total inoculated basophils above baseline levels after incubation for 2.5 h. Checkerboard analysis indicated that basophil migration induced by this mAb was mainly chemotactic and partially chemokinetic. An antigen, Der f 2, also induced migration of basophils from Der f-sensitive subjects. Basophils mixed with 1 ng ml-1 of CRA-1 mAb showed an exaggerated migration response to eotaxin, indicating that FcepsilonRI cross-linkage enhances basophil migration to other chemoattractants. Induction of basophil migration by IgE- and FcepsilonRI-cross-linking stimulation may, at least in part, explain the pathogenesis of local basophil accumulation clinically observed in allergic diseases such as asthma.
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