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Decrease of Hyaluronidase Activity and Suppression of Mouse CD4+ T Lymphocyte Activation by Tomato Juice Saponin Esculeoside B, and Its Sapogenol Esculeogenin B. J Pers Med 2022; 12:jpm12040579. [PMID: 35455695 PMCID: PMC9025294 DOI: 10.3390/jpm12040579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/29/2022] [Accepted: 03/31/2022] [Indexed: 01/10/2023] Open
Abstract
(1) Background: A naturally occurring glycoside, esculeoside B (EsB), has been identified as a major component in juice or canned tomato. We reported how EsB ameliorated mice experimental atopic dermatitis by a decrease in serum IgE levels. However, the underlying immunologic molecular mechanisms are unknown. (2) Methods: The present study tested the effects of EsB on hyaluronidase activity and CD4+ T lymphocyte activation using concanavalin A (ConA)-blast mouse splenocyte primary culture. (3) Results: We found that EsB and its sapogenol esculeogenin B (Esg-B) decreased hyaluronidase activity by a modified Morgan–Elson method. We demonstrated that EsB/Esg-B dose-dependently suppressed T-lymphoproliferation using CFSE-labeled flow-cytometry and water-soluble tetrazolium (WST) assay. Using ELISA and q-PCR methods, EsB/Esg-B suppressed the cytokine secretion and mRNA expression of Th2-relevant IL-4 and Th1-relevant IFN-γ. Moreover, both EsB/Esg-B showed a reduction in IL-10 secretion, but only Esg-B decreased IL-2 secretion. (4) Conclusions: Our study is the first to demonstrate how EsB/Esg-B inhibit hyaluronidase activity and reduce CD4+ T-lymphocyte activation via a reduction in Th2-lymphocyte activity by modulation of Th2/Th1/Treg subunits differentiation.
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Fukui H, Mizuguchi H, Kitamura Y, Takeda N. Patho-Pharmacological Research of Anti-allergic Natural Products Targeting Antihistamine-Sensitive and -Insensitive Allergic Mechanisms. Curr Top Behav Neurosci 2021; 59:77-90. [PMID: 34647283 DOI: 10.1007/7854_2021_255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Histamine H1 receptor (H1R) has a special up-regulation mechanism by the stimulation of H1R, mediated by protein kinase C-delta (PKCδ) signaling and H1R gene expression, resulting increase in H1R signaling. Increase in H1R mRNA in nasal mucosa was induced after the provocation of nasal hypersensitivity model rats and suppressed by the pre-treatment of antihistamines. Improvement of nasal symptoms and suppression of H1R mRNA expression in nasal mucosa were also observed by the pre-treatment of antihistamines in pollinosis patients. Elucidation of a correlation between symptoms and H1R mRNA level suggests that H1R gene is an allergic disease (AD)-susceptibility gene, targeted by antihistamines. Similar to antihistamines, pre-treatment of Kujin extract, an anti-allergic Kampo medicine improved nasal symptoms and suppressed H1R mRNA expression in nasal hypersensitivity model rats. (-)-Maackiain targeting heat shock protein 90 (Hsp90) was isolated as an inhibitor of PKCδ signaling-mediated H1R gene expression from Kujin extract. In addition to H1R-mediated activation of H1R gene expression as the first mechanism, nuclear factor of activated T-cells (NFAT)-mediated IL-9 gene expression is suggested to participate to allergic symptoms as the second mechanism insensitive to antihistamines. Pyrogallol and proanthocyanidin suppressing IL-9 gene expression were discovered from Awa-tea and lotus root knots, respectively. Combination therapy using medicines suppressing both H1R gene expression and IL-9 gene expression is promising for outstanding alleviation of AD. Multifactorial diseases involving H1R gene expression may be treated by the combination therapy with antihistamine and complementary drugs, and diseases involving PKCδ signaling may be treated by drugs targeting Hsp90.
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Affiliation(s)
| | - Hiroyuki Mizuguchi
- Laboratory of Pharmacology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan
| | - Yoshiaki Kitamura
- Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Noriaki Takeda
- Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
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Mizuguchi H, Kitamura Y, Takeda N, Fukui H. Molecular Signaling and Transcriptional Regulation of Histamine H 1 Receptor Gene. Curr Top Behav Neurosci 2021; 59:91-110. [PMID: 34595742 DOI: 10.1007/7854_2021_256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Histamine-activated histamine H1 receptor (H1R) signaling regulates many gene expressions, mainly through the protein kinase C (PKC)/extracellular signal-regulated kinases (ERK) signaling. Involvement of other signaling, including NF-κB, Wnt, RUNX-2, and Rho A signaling was also demonstrated. In addition, cAMP production through the activation of H1R signaling was reported. H1R gene itself is also up-regulated by the activation of H1R signaling with histamine. Here, we review our recent findings in the molecular signaling and transcriptional regulation of the H1R gene. Stimulation with histamine up-regulates H1R gene expression through the activation of H1R in HeLa cells. The PKCδ/ERK/poly(ADP)ribosyl transferase-1 (PARP-1) signaling was involved in this up-regulation. Heat shock protein 90 also plays an important role in regulating PKCδ translocation. Promoter analyses revealed the existence of two promoters in the human H1R gene in HeLa cells. H1R-activated H1R gene up-regulation in response to histamine was also observed in U373 astroglioma cells. However, this up-regulation was mediated not through the PKCδ signaling but possibly through the PKCα signaling. In addition, the promoter region responsible for histamine-induced H1R gene transcription in U373 cells was different from that of HeLa cells. These findings suggest that the molecular signaling and transcriptional regulation of the H1R gene are different between neuronal cells and non-neuronal cells.
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Affiliation(s)
- Hiroyuki Mizuguchi
- Laboratory of Pharmacology, Faculty of Pharmacy, Osaka Ohtani University, Osaka, Japan.
| | - Yoshiaki Kitamura
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Noriaki Takeda
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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4
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Nakano T, Ikeda M, Wakugawa T, Kashiwada Y, Kaminuma O, Kitamura N, Yabumoto M, Fujino H, Kitamura Y, Fukui H, Takeda N, Mizuguchi H. Identification of pyrogallol from Awa-tea as an anti-allergic compound that suppresses nasal symptoms and IL-9 gene expression. THE JOURNAL OF MEDICAL INVESTIGATION 2020; 67:289-297. [PMID: 33148904 DOI: 10.2152/jmi.67.289] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
As the expression level of allergic disease sensitive genes are correlated with the severity of allergic symptoms, suppression of these gene expressions could be promising therapeutics. We demonstrated that protein kinase Cδ / heat shock protein 90-mediated H1R gene expression signaling and nuclear factor of activated T-cells (NFAT)-mediated IL-9 gene expression signaling are responsible for the pathogenesis of pollinosis. Treatment with Awa-tea combined with wild grape hot water extract suppressed these signaling and alleviated nasal symptoms in toluene-2,4-diisocyanate (TDI)-sensitized rats. However, the underlying mechanism of its anti-allergic activity is not elucidated yet. Here, we sought to identify an anti-allergic compound from Awa-tea and pyrogallol was identified as an active compound. Pyrogallol strongly suppressed ionomycin-induced up-regulation of IL-9 gene expression in RBL-2H3 cells. Treatment with pyrogallol in combination with epinastine alleviated nasal symptoms and suppressed up-regulation of IL-9 gene expression in TDI-sensitized rats. Pyrogallol itself did not inhibit calcineurin phosphatase activity. However, pyrogallol suppressed ionomycin-induced dephosphorylation and nuclear translocation of NFAT. These data suggest pyrogallol is an anti-allergic compound in Awa-tea and it suppressed NFAT-mediated IL-9 gene expression through the inhibition of dephosphorylation of NFAT. This might be the underlying mechanism of the therapeutic effects of combined therapy of pyrogallol with antihistamine. J. Med. Invest. 67 : 289-297, August, 2020.
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Affiliation(s)
- Tomohiro Nakano
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Mitsuhiro Ikeda
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Tomoharu Wakugawa
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Yoshiki Kashiwada
- Department of Pharmacognosy, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Osamu Kaminuma
- Department of Disease Model Research Institute of Radiation Biology and Medicine, Hiroshima University, Hiroshima 734-8553, Japan
| | - Noriko Kitamura
- Allergy and Immunology Project, The Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan
| | | | - Hiromichi Fujino
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Yoshiaki Kitamura
- Department of Otolalyngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Hiroyuki Fukui
- Medical Corporation Kinshukai, Osaka 558-0011, Japan.,Laboratory of Pharmacology, Faculty of Pharmacy, Osaka Ohtani University, Osaka 584-8540, Japan
| | - Noriaki Takeda
- Department of Otolalyngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan
| | - Hiroyuki Mizuguchi
- Laboratory of Pharmacology, Faculty of Pharmacy, Osaka Ohtani University, Osaka 584-8540, Japan
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5
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Zhou JR, Kimura S, Nohara T, Yokomizo K. Competitive Inhibition of Mammalian Hyaluronidase by Tomato Saponin, Esculeoside A. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801301112] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Esculeoside A, a glycoside of spirosolane-type, is identified as a major component in ripe tomato fruits. Our previous study showed that esculeoside A inhibited hyaluronidase activity in vitro and ameliorated experimental dermatitis in vivo. The aim of this present study is to investigate the inhibition mode on mammalian hyaluronidase by esculeoside A. Measured by a modified Morgan-Elson method, the present kinetic analysis of the hydrolysis reaction using hyaluronic acid revealed that no significant difference was observed in velocity maximum Vmax, and Michaelis-Menten constant Km was shown as 0.74 mM in the absence of esculeoside A, was increased as 1.32 and 1.98 mM with 3 and 30 μM of esculeoside A, respectively. Thus suggested that the inhibition mode on hyaluronidase by esculeoside A was competitive. This competitive inhibition on hyaluronidase activity may become valuable in the amelioration of mice experimental dermatitis by esculeoside A.
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Affiliation(s)
- Jian-Rong Zhou
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Souta Kimura
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Toshihiro Nohara
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
| | - Kazumi Yokomizo
- Faculty of Pharmaceutical Sciences, Sojo University, Kumamoto 860-0082, Japan
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Mizuguchi H. Development of therapeutic strategy target for intracellular signaling molecules responsible for the pathogenesis of allergic diseases. Nihon Yakurigaku Zasshi 2017; 150:188-194. [PMID: 28966217 DOI: 10.1254/fpj.150.188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Antihistamines suppress upregulation of histidine decarboxylase gene expression with potencies different from their binding affinities for histamine H1 receptor in toluene 2,4-diisocyanate-sensitized rats. J Pharmacol Sci 2016; 130:212-8. [PMID: 26980430 DOI: 10.1016/j.jphs.2016.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 02/01/2016] [Accepted: 02/04/2016] [Indexed: 11/22/2022] Open
Abstract
Antihistamines inhibit histamine signaling by blocking histamine H1 receptor (H1R) or suppressing H1R signaling as inverse agonists. The H1R gene is upregulated in patients with pollinosis, and its expression level is correlated with the severity of nasal symptoms. Here, we show that antihistamine suppressed upregulation of histidine decarboxylase (HDC) mRNA expression in patients with pollinosis, and its expression level was correlated with that of H1R mRNA. Certain antihistamines, including mepyramine and diphenhydramine, suppress toluene-2,4-diisocyanate (TDI)-induced upregulation of HDC gene expression and increase HDC activity in TDI-sensitized rats. However, d-chlorpheniramine did not demonstrate any effect. The potencies of antihistamine suppressive effects on HDC mRNA elevation were different from their H1R receptor binding affinities. In TDI-sensitized rats, the potencies of antihistamine inhibitory effects on sneezing in the early phase were related to H1R binding. In contrast, the potencies of their inhibitory effects on sneezing in the late phase were correlated with those of suppressive effects on HDC mRNA elevation. Data suggest that in addition to the antihistaminic and inverse agonistic activities, certain antihistamines possess additional properties unrelated to receptor binding and alleviate nasal symptoms in the late phase by inhibiting synthesis and release of histamine by suppressing HDC gene transcription.
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Mizuguchi H, Orimoto N, Kadota T, Kominami T, Das AK, Sawada A, Tamada M, Miyagi K, Adachi T, Matsumoto M, Kosaka T, Kitamura Y, Takeda N, Fukui H. Suplatast tosilate alleviates nasal symptoms through the suppression of nuclear factor of activated T-cells-mediated IL-9 gene expression in toluene-2,4-diisocyanate-sensitized rats. J Pharmacol Sci 2016; 130:151-8. [PMID: 26874672 DOI: 10.1016/j.jphs.2015.12.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 12/26/2015] [Accepted: 12/28/2015] [Indexed: 10/22/2022] Open
Abstract
Histamine H1 receptor (H1R) gene is upregulated in patients with pollinosis; its expression level is highly correlated with the nasal symptom severity. Antihistamines are widely used as allergy treatments because they inhibit histamine signaling by blocking H1R or suppressing H1R signaling as inverse agonists. However, long-term treatment with antihistamines does not completely resolve toluene-2,4-diisocyanate (TDI)-induced nasal symptoms, although it can decrease H1R gene expression to the basal level, suggesting additional signaling is responsible for the pathogenesis of the allergic symptoms. Here, we show that treatment with suplatast tosilate in combination with antihistamines markedly alleviates nasal symptoms in TDI-sensitized rats. Suplatast suppressed TDI-induced upregulation of IL-9 gene expression. Suplatast also suppressed ionomycin/phorbol-12-myristate-13-acetate-induced upregulation of IL-2 gene expression in Jurkat cells, in which calcineurin (CN)/nuclear factor of activated T-cells (NFAT) signaling is known to be involved. Immunoblot analysis demonstrated that suplatast inhibited binding of NFAT to DNA. Furthermore, suplatast suppressed ionomycin-induced IL-9 mRNA upregulation in RBL-2H3 cells, in which CN/NFAT signaling is also involved. These data suggest that suplatast suppressed NFAT-mediated IL-9 gene expression in TDI-sensitized rats and this might be the underlying mechanism of the therapeutic effects of combined therapy of suplatast with antihistamine.
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Affiliation(s)
- Hiroyuki Mizuguchi
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Sho-machi, Tokushima 770-8505, Japan.
| | - Naoki Orimoto
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Sho-machi, Tokushima 770-8505, Japan; Taiho Pharmaceutical Co. LTD., 224-2, Ebisuno Hiraishi, Kawauchi-cho, Tokushima 771-0194, Japan
| | - Takuya Kadota
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Sho-machi, Tokushima 770-8505, Japan
| | - Takahiro Kominami
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Sho-machi, Tokushima 770-8505, Japan
| | - Asish K Das
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Sho-machi, Tokushima 770-8505, Japan
| | - Akiho Sawada
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Sho-machi, Tokushima 770-8505, Japan
| | - Misaki Tamada
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Sho-machi, Tokushima 770-8505, Japan
| | - Kohei Miyagi
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Sho-machi, Tokushima 770-8505, Japan
| | - Tsubasa Adachi
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Sho-machi, Tokushima 770-8505, Japan
| | - Mayumi Matsumoto
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Sho-machi, Tokushima 770-8505, Japan
| | - Tomoya Kosaka
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Sho-machi, Tokushima 770-8505, Japan
| | - Yoshiaki Kitamura
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Kuramoto, Tokushima 770-8503, Japan
| | - Noriaki Takeda
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Kuramoto, Tokushima 770-8503, Japan
| | - Hiroyuki Fukui
- Department of Molecular Studies for Incurable Diseases, Institute of Biomedical Sciences, Tokushima University Graduate School, Kuramoto, Tokushima 770-8503, Japan
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Shill MC, Mizuguchi H, Karmakar S, Kadota T, Mukherjee PK, Kitamura Y, Kashiwada Y, Nemoto H, Takeda N, Fukui H. A novel benzofuran, 4-methoxybenzofuran-5-carboxamide, from Tephrosia purpurea suppressed histamine H 1 receptor gene expression through a protein kinase C-δ-dependent signaling pathway. Int Immunopharmacol 2016; 30:18-26. [DOI: 10.1016/j.intimp.2015.11.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 11/16/2015] [Accepted: 11/17/2015] [Indexed: 11/24/2022]
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10
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Nariai Y, Mizuguchi H, Ogasawara T, Nagai H, Sasaki Y, Okamoto Y, Yoshimura Y, Kitamura Y, Nemoto H, Takeda N, Fukui H. Disruption of Heat Shock Protein 90 (Hsp90)-Protein Kinase Cδ (PKCδ) Interaction by (-)-Maackiain Suppresses Histamine H1 Receptor Gene Transcription in HeLa Cells. J Biol Chem 2015; 290:27393-27402. [PMID: 26391399 PMCID: PMC4646370 DOI: 10.1074/jbc.m115.657023] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 09/10/2015] [Indexed: 12/22/2022] Open
Abstract
The histamine H1 receptor (H1R) gene is an allergic disease sensitive gene, and its expression level is strongly correlated with the severity of allergic symptoms. (-)-Maackiain was identified as a Kujin-derived anti-allergic compound that suppresses the up-regulation of the H1R gene. However, the underlying mechanism of H1R gene suppression remains unknown. Here, we sought to identify a target protein of (-)-maackiain and investigate its mechanism of action. A fluorescence quenching assay and immunoblot analysis identified heat shock protein 90 (Hsp90) as a target protein of (-)-maackiain. A pull-down assay revealed that (-)-maackiain disrupted the interaction of Hsp90 with PKCδ, resulting in the suppression of phorbol 12-myristate 13-acetate (PMA)-induced up-regulation of H1R gene expression in HeLa cells. Additional Hsp90 inhibitors, including 17-(allylamino)-17-demethoxygeldanamycin, celastrol, and novobiocin also suppressed PMA-induced H1R gene up-regulation. 17-(Allylamino)-17-demethoxygeldanamycin inhibited PKCδ translocation to the Golgi and phosphorylation of Tyr(311) on PKCδ. These data suggest that (-)-maackiain is a novel Hsp90 pathway inhibitor. The underlying mechanism of the suppression of PMA-induced up-regulation of H1R gene expression by (-)-maackiain and Hsp90 inhibitors is the inhibition of PKCδ activation through the disruption of Hsp90-PKCδ interaction. Involvement of Hsp90 in H1R gene up-regulation suggests that suppression of the Hsp90 pathway could be a novel therapeutic strategy for allergic rhinitis.
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Affiliation(s)
- Yuki Nariai
- Departments of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Hiroyuki Mizuguchi
- Departments of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan.
| | - Takeyasu Ogasawara
- Departments of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Hiroaki Nagai
- Departments of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Yohei Sasaki
- Departments of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Yasunobu Okamoto
- Departments of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Yoshiyuki Yoshimura
- Departments of Clinical Pharmacy, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Yoshiaki Kitamura
- Departments of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Hisao Nemoto
- Departments of Pharmaceutical Chemistry, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Noriaki Takeda
- Departments of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
| | - Hiroyuki Fukui
- Departments of Molecular Studies for Incurable Diseases, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8505, Japan
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Shill MC, Das AK, Itou T, Karmakar S, Mukherjee PK, Mizuguchi H, Kashiwada Y, Fukui H, Nemoto H. The isolation and synthesis of a novel benzofuran compound from Tephrosia purpurea, and the synthesis of several related derivatives, which suppress histamine H1 receptor gene expression. Bioorg Med Chem 2015; 23:6869-74. [DOI: 10.1016/j.bmc.2015.09.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 09/29/2015] [Accepted: 09/30/2015] [Indexed: 10/23/2022]
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12
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Kitamura Y, Nakagawa H, Fujii T, Sakoda T, Enomoto T, Mizuguchi H, Fukui H, Takeda N. Effects of antihistamine on up-regulation of histamine H1 receptor mRNA in the nasal mucosa of patients with pollinosis induced by controlled cedar pollen challenge in an environmental exposure unit. J Pharmacol Sci 2015; 129:183-7. [PMID: 26598006 DOI: 10.1016/j.jphs.2015.10.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 09/30/2015] [Accepted: 10/19/2015] [Indexed: 11/24/2022] Open
Abstract
In the present study, we examined the effects of antihistamine on the up-regulation of H1R mRNA in the nasal mucosa of patients with pollinosis induced by controlled exposure to pollen using an environmental exposure unit. Out of 20 patients, we designated 14 responders, whose levels of H1R mRNA in the nasal mucosa were increased after the first pollen exposure and excluded 6 non-responders. Accordingly, the first exposure to pollen without treatment significantly induced both nasal symptoms and the up-regulation of H1R mRNA in the nasal mucosa of the responders. Subsequently, prophylactic administration of antihistamine prior to the second pollen exposure significantly inhibited both of the above effects in the responders. Moreover, the nasal expression of H1R mRNA before the second pollen exposure in the responders pretreated with antihistamine was significantly decreased, as compared with that before the first pollen exposure without treatment. These findings suggest that antihistamines suppressed histamine-induced transcriptional activation of H1R gene in the nasal mucosa, in addition to their blocking effect against histamine on H1R, resulting in a decrease of nasal symptoms. These findings further suggest that by their inverse agonistic activity, antihistamines suppress the basal transcription of nasal H1R in the absence of histamine in responders.
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Affiliation(s)
- Yoshiaki Kitamura
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.
| | - Hideyuki Nakagawa
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tatsuya Fujii
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Takema Sakoda
- Department of Otolaryngology, Rinku General Medical Center, Osaka, Japan
| | - Tadao Enomoto
- NPO Japan Health Promotion Supporting Network, Wakayama, Japan
| | - Hiroyuki Mizuguchi
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroyuki Fukui
- Department of Molecular Studies for Incurable Diseases, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Noriaki Takeda
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Mizuguchi H, Nariai Y, Kato S, Nakano T, Kanayama T, Kashiwada Y, Nemoto H, Kawazoe K, Takaishi Y, Kitamura Y, Takeda N, Fukui H. Maackiain is a novel antiallergic compound that suppresses transcriptional upregulation of the histamine H1 receptor and interleukin-4 genes. Pharmacol Res Perspect 2015; 3:e00166. [PMID: 26516579 PMCID: PMC4618638 DOI: 10.1002/prp2.166] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 06/10/2015] [Accepted: 06/11/2015] [Indexed: 11/12/2022] Open
Abstract
Kujin contains antiallergic compounds that inhibit upregulation of histamine H1 receptor (H1R) and interleukin (IL)-4 gene expression. However, the underlying mechanism remains unknown. We sought to identify a Kujin-derived antiallergic compound and investigate its mechanism of action. The H1R and IL-4 mRNA levels were determined by real-time quantitative RT-PCR. To investigate the effects of maackiain in vivo, toluene-2,4-diisocyanate (TDI)-sensitized rats were used as a nasal hypersensitivity animal model. We identified (-)-maackiain as the responsible component. Synthetic maackiain showed stereoselectivity for the suppression of IL-4 gene expression but not for H1R gene expression, suggesting distinct target proteins for transcriptional signaling. (-)-Maackiain inhibited of PKCδ translocation to the Golgi and phosphorylation of Tyr(311) on PKCδ, which led to the suppression of H1R gene transcription. However, (-)-maackiain did not show any antioxidant activity or inhibition of PKCδ enzymatic activity per se. Pretreatment with maackiain alleviated nasal symptoms and suppressed TDI-induced upregulations of H1R and IL-4 gene expressions in TDI-sensitized rats. These data suggest that (-)-maackiain is a novel antiallergic compound that alleviates nasal symptoms in TDI-sensitized allergy model rats through the inhibition of H1R and IL-4 gene expression. The molecular mechanism underlying its suppressive effect for H1R gene expression is mediated by the inhibition of PKCδ activation.
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Affiliation(s)
- Hiroyuki Mizuguchi
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School1-78-1 Sho-machi, Tokushima, 770-8505, Japan
| | - Yuki Nariai
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School1-78-1 Sho-machi, Tokushima, 770-8505, Japan
| | - Shuhei Kato
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School1-78-1 Sho-machi, Tokushima, 770-8505, Japan
| | - Tomohiro Nakano
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School1-78-1 Sho-machi, Tokushima, 770-8505, Japan
| | - Tomoyo Kanayama
- Department of Molecular Pharmacology, Institute of Biomedical Sciences, Tokushima University Graduate School1-78-1 Sho-machi, Tokushima, 770-8505, Japan
| | - Yoshiki Kashiwada
- Department of Pharmacognosy, Institute of Biomedical Sciences, Tokushima University Graduate School1-78-1 Sho-machi, Tokushima, 770-8505, Japan
| | - Hisao Nemoto
- Department of Pharmaceutical Chemistry, Institute of Biomedical Sciences, Tokushima University Graduate School1-78-1 Sho-machi, Tokushima, 770-8505, Japan
| | - Kazuyoshi Kawazoe
- Department of Clinical Pharmacy, Institute of Biomedical Sciences, Tokushima Tokushima University Graduate School3-18-15 Kuramoto, Tokushima, 770-8503, Japan
| | - Yoshihisa Takaishi
- Department of Pharmacognosy, Institute of Biomedical Sciences, Tokushima University Graduate School1-78-1 Sho-machi, Tokushima, 770-8505, Japan
| | - Yoshiaki Kitamura
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School3-18-15 Kuramoto, Tokushima, 770-8503, Japan
| | - Noriaki Takeda
- Department of Otolaryngology, Institute of Biomedical Sciences, Tokushima University Graduate School3-18-15 Kuramoto, Tokushima, 770-8503, Japan
| | - Hiroyuki Fukui
- Department of Molecular Studies for Incurable Diseases, Institute of Biomedical Sciences, Tokushima University Graduate School3-18-15 Kuramoto, Tokushima, 770-8503, Japan
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14
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Yasudo H, Ando T, Hiwatari M, Oka A. Suplatast tosilate for treating cutaneous mastocytosis. Pediatr Dermatol 2015; 32:e118-9. [PMID: 25779849 DOI: 10.1111/pde.12552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pediatric cutaneous mastocytosis is a rare disease caused by mast cell hyperplasia. We report the case of an infant diagnosed as cutaneous mastocytosis and seasonal allergies. The wheals, flushing, and pruritus of the mastocytosis were unresponsive to combination therapy with an antihistamine, a mast cell stabilizer (sodium cromoglycate), and a leukotriene antagonist. Addition of suplatast tosilate as a treatment for the seasonal allergy also dramatically improved his cutaneous symptoms and signs. Further trials of suplatast tosilate in selected cases of cutaneous mastocytosis are warranted.
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Affiliation(s)
- Hiroki Yasudo
- Department of Pediatrics, Graduate School of Medicine, Tokyo University, Tokyo, Japan
| | - Tomoaki Ando
- Department of Pediatrics, Graduate School of Medicine, Tokyo University, Tokyo, Japan.,Laboratory for Allergic Disease, RIKEN Center for Integrative Medical Sciences, Yokohama City, Japan
| | - Mitsuteru Hiwatari
- Department of Pediatrics, Graduate School of Medicine, Tokyo University, Tokyo, Japan
| | - Akira Oka
- Department of Pediatrics, Graduate School of Medicine, Tokyo University, Tokyo, Japan
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15
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Friesen CA, Schurman JV, Colombo JM, Abdel-Rahman SM. Eosinophils and mast cells as therapeutic targets in pediatric functional dyspepsia. World J Gastrointest Pharmacol Ther 2013; 4:86-96. [PMID: 24199024 PMCID: PMC3817289 DOI: 10.4292/wjgpt.v4.i4.86] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Revised: 07/31/2013] [Accepted: 08/06/2013] [Indexed: 02/06/2023] Open
Abstract
There is an increasing appreciation for the importance of inflammation as a pathophysiologic entity that contributes to functional gastrointestinal disorders including functional dyspepsia (FD). Importantly, inflammation may serve as a mediator between psychologic and physiologic functions. This manuscript reviews the literature implicating two inflammatory cell types, mast cells and eosinophils, in the generation of dyspeptic symptoms and explores their potential as targets for the treatment of FD. There are a number of inciting events which may initiate an inflammatory response, and the subsequent recruitment and activation of mast cells and eosinophils. These include internal triggers such as stress and anxiety, as well as external triggers such as microbes and allergens. Previous studies suggest that there may be efficacy in utilizing medications directed at mast cells and eosinophils. Evidence exists to suggest that combining “anti-inflammatory” medications with other treatments targeting stress can improve the rate of symptom resolution in pediatric FD.
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16
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Mizuguchi H, Ono S, Hattori M, Sasaki Y, Fukui H. Usefulness of HeLa cells to evaluate inverse agonistic activity of antihistamines. Int Immunopharmacol 2013; 15:539-43. [PMID: 23453703 DOI: 10.1016/j.intimp.2013.02.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 02/06/2013] [Accepted: 02/07/2013] [Indexed: 11/25/2022]
Abstract
Antihistamines are thought to antagonize histamine and prevent it from binding to the histamine H1 receptor (H1R). However, recent studies indicate that antihistamines are classified into two groups, i.e., inverse agonists and neutral antagonists on the basis of their ability to down-regulate the constitutive activity of H1R. As H1R is an allergy-sensitive gene whose expression influences the severity of allergic symptoms, inverse agonists should more potently alleviate allergic symptoms than neutral antagonists by inhibiting H1R constitutive activity. Therefore, it is important to assess inverse agonistic activity of antihistamines. Here we report a novel assay method using HeLa cells expressing H1R endogenously for evaluation of inverse agonistic activity of antihistamines. Pretreatment with inverse agonists down-regulated H1R gene expression below to its basal level. On the other hand, basal H1R mRNA expression was unchanged by neutral antagonist pretreatment. Both inverse agonists and neutral antagonists suppressed histamine-induced H1R mRNA elevation. Classification of antihistamines on the basis of their suppressive activity of basal H1R gene expression was consistent with that of inositol phosphate accumulation in H1R-overexpressed cells. Our data suggest that the assay method using HeLa cells is more convenient and useful than the existing methods and may contribute to develop new antihistamines with inverse agonistic activity.
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Affiliation(s)
- Hiroyuki Mizuguchi
- Department of Molecular Pharmacology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8505, Japan
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17
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Hattori M, Mizuguchi H, Baba Y, Ono S, Nakano T, Zhang Q, Sasaki Y, Kobayashi M, Kitamura Y, Takeda N, Fukui H. Quercetin inhibits transcriptional up-regulation of histamine H1 receptor via suppressing protein kinase C-δ/extracellular signal-regulated kinase/poly(ADP-ribose) polymerase-1 signaling pathway in HeLa cells. Int Immunopharmacol 2013; 15:232-9. [PMID: 23333628 DOI: 10.1016/j.intimp.2012.12.030] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 12/29/2012] [Accepted: 12/31/2012] [Indexed: 11/29/2022]
Abstract
It has been reported that the histamine H1 receptor (H1R) gene is up-regulated in patients with allergic rhinitis and H1R expression level strongly correlates with the severity of allergy symptoms. Accordingly compounds that suppress the H1R gene expression are promising as useful anti-allergic medications. Recently, we demonstrated that histamine or phorbol-12-myristate-13-acetate (PMA) stimulation induced the up-regulation of H1R gene expression through the protein kinase Cδ (PKCδ)/extracellular signal-regulated kinase/poly(ADP-ribose) polymerase-1 signaling pathway in HeLa cells expressing H1R endogenously. Quercetin is one of the well-characterized flavonoids and it possesses many biological activities including anti-allergic activity. However, effect of quercetin on H1R signaling is remained unknown. In the present study, we examined the effect of quercetin on histamine- and PMA-induced up-regulation of H1R gene expression in HeLa cells. We also investigated its in vivo effects on the toluene-2,4-diisocyanate (TDI)-sensitized allergy model rats. Quercetin suppressed histamine- and PMA-induced up-regulation of H1R gene expression. Quercetin also inhibited histamine- or PMA-induced phosphorylation of Tyr(311) of PKCδ and translocation of PKCδ to the Golgi. Pre-treatment with quercetin for 3weeks suppressed TDI-induced nasal allergy-like symptoms and elevation of H1R mRNA in the nasal mucosa of TDI-sensitized rats. These data suggest that quercetin suppresses H1R gene expression by the suppression of PKCδ activation through the inhibition of its translocation to the Golgi.
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Affiliation(s)
- Masashi Hattori
- Department of Molecular Pharmacology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8505, Japan
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18
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Marzaioli V, McMorrow JP, Angerer H, Gilmore A, Crean D, Zocco D, Rooney P, Veale D, Fearon U, Gogarty M, McEvoy AN, Stradner MH, Murphy EP. Histamine contributes to increased RANKL to osteoprotegerin ratio through altered nuclear receptor 4A activity in human chondrocytes. ACTA ACUST UNITED AC 2013; 64:3290-301. [PMID: 22674155 DOI: 10.1002/art.34554] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To elucidate histamine receptor-mediated signaling pathways, transcriptional events, and target gene expression in human cartilage. METHODS Histamine modulation of cartilage destruction was assessed by Safranin O staining and proteoglycan release. H(1) , H(2) , H(3) , and H(4) histamine receptor-dependent regulation of transcription factors (nuclear receptor 4A1 [NR4A1], NR4A2, and NR4A3), RANKL, and osteoprotegerin (OPG) messenger RNA (mRNA) levels were measured in primary and SW-1353 chondrocyte cells using quantitative polymerase chain reaction and selective histamine receptor antagonists. Soluble RANKL and OPG protein levels were determined using enzyme-linked immunosorbent assays. NR4A protein levels and transactivity were evaluated by Western blot analysis, immunocytochemistry, and luciferase reporter assays. Stable depletion of NR4A1-3 was achieved by lentiviral transduction of NR4A short hairpin RNA. RESULTS Primary human chondrocyte cells expressed differential steady-state levels of H(1) -H(4) histamine receptor mRNA. In combination with tumor necrosis factor α, histamine significantly promoted cartilage proteoglycan depletion and release. Histamine modulated the expression of NR4A1-3 orphan receptors in primary and immortalized human chondrocyte cells in a time- and concentration-dependent manner. Histamine selectively signaled through H(1) and H(2) histamine receptors in chondrocytes to modulate RANKL and NR4A2 expression. The temporal effects of histamine on NR4A2 gene transcription were reduced in cells pretreated with inhibitors directed against protein kinase A, MAPK, and NF-κB signaling pathways. Histamine modulated the expression of RANKL with modest effects on OPG levels, leading to increased RANKL:OPG mRNA and protein ratios. Stable knockdown of NR4A1-3 expression resulted in reduced endogenous OPG levels and the loss of histamine-dependent regulation of RANKL expression. CONCLUSION Our findings indicate that histamine, via H(1) and H(2) histamine receptors, contributes to joint disease by enhancing the ratio of RANKL to OPG expression through altered NR4A activity in human chondrocyte cells.
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Affiliation(s)
- Viviana Marzaioli
- Conway Institute for Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
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19
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Mizuguchi H, Miyagi K, Terao T, Sakamoto N, Yamawaki Y, Adachi T, Ono S, Sasaki Y, Yoshimura Y, Kitamura Y, Takeda N, Fukui H. PMA-induced dissociation of Ku86 from the promoter causes transcriptional up-regulation of histamine H(1) receptor. Sci Rep 2012; 2:916. [PMID: 23209876 PMCID: PMC3512088 DOI: 10.1038/srep00916] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Accepted: 10/24/2012] [Indexed: 12/05/2022] Open
Abstract
Histamine H1 receptor (H1R) gene is up-regulated in patients with allergic rhinitis, and its expression level strongly correlates with the severity of symptoms. However, the mechanism underlying this remains unknown. Here we report the mechanism of H1R gene up-regulation. The luciferase assay revealed the existence of two promoter regions, A and B1. Two AP-1 and one Ets-1 bound to region A, while Ku86, Ku70, and PARP-1 bound to region B1. Ku86 was responsible for DNA binding and poly(ADP-ribosyl)ated in response to phorbol-12-myristate-13-acetate stimulation, inducing its dissociation from region B1 that is crucial for promoter activity. Knockdown of Ku86 gene enhanced up-regulation of H1R gene expression. Experiments using inhibitors for MEK and PARP-1 indicate that regions A and B1 are downstream regulatory elements of the PKCδ/ERK/PARP-1 signaling pathway. Data suggest a novel mechanism for the up-regulation of H1R gene expression.
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Affiliation(s)
- Hiroyuki Mizuguchi
- Department of Molecular Pharmacology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8505, Japan
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20
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Mizuguchi H, Ono S, Hattori M, Fukui H. Inverse agonistic activity of antihistamines and suppression of histamine H1 receptor gene expression. J Pharmacol Sci 2011; 118:117-121. [PMID: 22186623 DOI: 10.1254/jphs.11177sc] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Accepted: 11/15/2011] [Indexed: 10/14/2022] Open
Abstract
Histamine H(1) receptor (H1R) expression influences the severity of allergy symptoms. We examined the effect of inverse agonists on H1R gene expression. Two inverse agonists (carebastine and mepyramine), but not the neutral antagonist oxatomide, decreased inositol phosphate accumulation. The inverse agonists also decreased H1R gene expression and down-regulated H1R mRNA below basal expression, while basal H1R mRNA expression was maintained after oxatomide treatment. These results suggest that inverse agonists more potently alleviate allergy symptoms by not only inhibiting stimulus-induced up-regulation of H1R gene expression but also by suppressing basal histamine signaling through their inverse agonistic activity.
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Affiliation(s)
- Hiroyuki Mizuguchi
- Department of Molecular Pharmacology, Institute of Health Biosciences, The University of Tokushima Graduate School, Japan
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21
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Abstract
Immune modulation for treatment of allergic diseases aims to decrease the pathologic immune response rather than to cause a return to an immunologically naive or unresponsive state. Our expanding knowledge of innate and adaptive immune responses at the molecular level has led to development of immunomodulators for several allergic diseases, particularly asthma, allergic rhinitis, and eosinophilic esophagitis. Although successful immune modulation in mouse models of allergic disease have often failed to translate into significant results in human clinical trials, much has been learned about the pleotropic nature of cytokines and their effector mechanisms and of the varied phenotypes of allergic disease. We examine strategies of immune modulation in allergic diseases that have undergone human clinical trials, all with the common goal of decreasing the T-helper 2 (Th2) response, but through different mechanisms: blocking critical Th2 cytokines, inhibiting Th2 cytokine synthesis, blocking critical Th2 effector molecules, inhibiting important cells in the Th2 response, and stimulating Th1 responses. Therapies directed against specific effector molecules, such as immunoglobulin E and prostaglandin D2, hold promise in immune modulation of allergic disease, as do targeting the IL-4/IL-13 receptor and augmenting Th1/Th2 balance with Toll-like receptor agonists.
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Affiliation(s)
- Tran-Hoai T Nguyen
- Division of Allergy and Immunology, Department of Medicine, Creighton University School of Medicine, Omaha, NE, USA
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22
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Nguyen THT, Stokes JR, Casale TB. Future forms of immunotherapy and immunomodulators in allergic disease. Immunol Allergy Clin North Am 2011; 31:343-65, x-xi. [PMID: 21530824 DOI: 10.1016/j.iac.2011.02.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Future forms of immunotherapy, particularly toll-like receptor agonists, have shown promising results in animal models of allergic disease although most have failed to translate into successful human clinical trials. These results have helped to elucidate the pleotropic roles of cytokines as well as the diverse phenotypes of allergic diseases, particularly asthma. The goals of these therapies are to improve patient symptoms and quality of life, to prevent and favorably alter disease course, and to maintain a good risk/benefit ratio along with a cost-effective profile.
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Affiliation(s)
- Tran-Hoai T Nguyen
- Department of Medicine, Division of Allergy and Immunology, Creighton University School of Medicine, 601 North 30th Street, Suite 3M100, Omaha, NE 68131, USA
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23
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Albizia lebbeck suppresses histamine signaling by the inhibition of histamine H1 receptor and histidine decarboxylase gene transcriptions. Int Immunopharmacol 2011; 11:1766-72. [PMID: 21782040 DOI: 10.1016/j.intimp.2011.07.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Revised: 06/21/2011] [Accepted: 07/06/2011] [Indexed: 11/22/2022]
Abstract
Histamine plays major roles in allergic diseases and its action is mediated mainly by histamine H(1) receptor (H1R). We have demonstrated that histamine signaling-related H1R and histidine decarboxylase (HDC) genes are allergic diseases sensitive genes and their expression level affects severity of the allergic symptoms. Therefore, compounds that suppress histamine signaling should be promising candidates as anti-allergic drugs. Here, we investigated the effect of the extract from the bark of Albizia lebbeck (AL), one of the ingredients of Ayruvedic medicines, on H1R and HDC gene expression using toluene-2,4-diisocyanate (TDI) sensitized allergy model rats and HeLa cells expressing endogenous H1R. Administration of the AL extract significantly decreased the numbers of sneezing and nasal rubbing. Pretreatment with the AL extract suppressed TDI-induced H1R and HDC mRNA elevations as well as [(3)H]mepyramine binding, HDC activity, and histamine content in the nasal mucosa. AL extract also suppressed TDI-induced up-regulation of IL-4, IL-5, and IL-13 mRNA. In HeLa cells, AL extract suppressed phorbol-12-myristate-13-acetate- or histamine-induced up-regulation of H1R mRNA. Our data suggest that AL alleviated nasal symptoms by inhibiting histamine signaling in TDI-sensitized rats through suppression of H1R and HDC gene transcriptions. Suppression of Th2-cytokine signaling by AL also suggests that it could affect the histamine-cytokine network.
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24
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Mizuguchi H, Terao T, Kitai M, Ikeda M, Yoshimura Y, Das AK, Kitamura Y, Takeda N, Fukui H. Involvement of protein kinase Cdelta/extracellular signal-regulated kinase/poly(ADP-ribose) polymerase-1 (PARP-1) signaling pathway in histamine-induced up-regulation of histamine H1 receptor gene expression in HeLa cells. J Biol Chem 2011; 286:30542-30551. [PMID: 21730054 DOI: 10.1074/jbc.m111.253104] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The histamine H(1) receptor (H1R) gene is up-regulated in patients with allergic rhinitis. However, the mechanism and reason underlying this up-regulation are still unknown. Recently, we reported that the H1R expression level is strongly correlated with the severity of allergic symptoms. Therefore, understanding the mechanism of this up-regulation will help to develop new anti-allergic drugs targeted for H1R gene expression. Here we studied the molecular mechanism of H1R up-regulation in HeLa cells that express H1R endogenously in response to histamine and phorbol 12-myristate 13-acetate (PMA). In HeLa cells, histamine stimulation caused up-regulation of H1R gene expression. Rottlerin, a PKCδ-selective inhibitor, inhibited up-regulation of H1R gene expression, but Go6976, an inhibitor of Ca(2+)-dependent PKCs, did not. Histamine or PMA stimulation resulted in PKCδ phosphorylation at Tyr(311) and Thr(505). Activation of PKCδ by H(2)O(2) resulted in H1R mRNA up-regulation. Overexpression of PKCδ enhanced up-regulation of H1R gene expression, and knockdown of the PKCδ gene suppressed this up-regulation. Histamine or PMA caused translocation PKCδ from the cytosol to the Golgi. U0126, an MEK inhibitor, and DPQ, a poly(ADP-ribose) polymerase-1 inhibitor, suppressed PMA-induced up-regulation of H1R gene expression. These results were confirmed by a luciferase assay using the H1R promoter. Phosphorylation of ERK and Raf-1 in response to PMA was also observed. However, real-time PCR analysis showed no inhibition of H1R mRNA up-regulation by a Raf-1 inhibitor. These results suggest the involvement of the PKCδ/ERK/poly(ADP-ribose) polymerase-1 signaling pathway in histamine- or PMA-induced up-regulation of H1R gene expression in HeLa cells.
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Affiliation(s)
| | - Takuma Terao
- Departments of Molecular Pharmacology, Tokushima 770-8505, Japan
| | - Mika Kitai
- Departments of Molecular Pharmacology, Tokushima 770-8505, Japan
| | - Mitsuhiro Ikeda
- Departments of Molecular Pharmacology, Tokushima 770-8505, Japan
| | | | - Asish Kumar Das
- Departments of Molecular Pharmacology, Tokushima 770-8505, Japan
| | - Yoshiaki Kitamura
- Otolaryngology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8505, Japan
| | - Noriaki Takeda
- Otolaryngology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8505, Japan
| | - Hiroyuki Fukui
- Departments of Molecular Pharmacology, Tokushima 770-8505, Japan.
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25
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Dev S, Mizuguchi H, Das AK, Baba Y, Fukui H. Transcriptional microarray analysis reveals suppression of histamine signaling by Kujin alleviates allergic symptoms through down-regulation of FAT10 expression. Int Immunopharmacol 2011; 11:1504-9. [PMID: 21601015 DOI: 10.1016/j.intimp.2011.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2011] [Revised: 03/29/2011] [Accepted: 05/03/2011] [Indexed: 01/05/2023]
Abstract
Previously, we have shown that hot water extract from Kujin, the dried roots of Sophora flavescens alleviates allergic symptoms by suppressing histamine signaling at the transcription level in toluene 2,4-diisocyanate (TDI)-sensitized rats. To know more insights into the mechanism of the anti-allergic action of Kujin, we carried out the microarray analysis to explore genes that were up-regulated by treatment with TDI and also were suppressed these up-regulated gene expression by Kujin. Microarray analysis revealed the substantial up-regulation of FAT10 (also called UbD) mRNA due to TDI sensitization and Kujin extract significantly suppressed this up-regulation. FAT10 is an ubiquitin like protein having an active role in the immune system and is induced by proinflammatory cytokines. Activation of NF-κB by FAT10 also has been reported. However, the role of FAT10 in allergic pathogenesis remains unknown. Here we investigated the correlation of FAT10-NF-κB signaling with histamine signaling in TDI-sensitized rats. Real time RT-PCR analysis confirmed that treatment with TDI up-regulated FAT10 mRNA expression in the nasal mucosa of TDI-sensitized rats and Kujin extract suppressed this elevation. Treatment with H(1)-antihistamines suppressed the TDI-induced up-regulation of FAT10 mRNA expression in TDI-sensitized rats. Direct administration of histamine into the nasal cavity of non-TDI-treated normal rats up-regulated the expression of FAT10 mRNA. Our data suggest that Kujin might alleviate allergic symptoms by inhibition of NF-κB activation through suppression of histamine-induced up-regulation of FAT10 mRNA expression.
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Affiliation(s)
- Shrabanti Dev
- Department of Molecular Pharmacology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
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26
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Mizuguchi H, Kitamura Y, Kondo Y, Kuroda W, Yoshida H, Miyamoto Y, Hattori M, Takeda N, Fukui H. [Histamine H₁ receptor gene as an allergic diseases-sensitive gene and its impact on therapeutics for allergic diseases]. YAKUGAKU ZASSHI 2011; 131:171-8. [PMID: 21297357 DOI: 10.1248/yakushi.131.171] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Therapeutics targeting disease-sensitive genes are required for the therapy of multifactorial diseases. There is no clinical report on therapeutics for allergic disease-sensitive genes. We are focusing on the histamine H₁ receptor (H1R) as a sensitive gene. H1R mediates allergy histamine signals. H1R is a rate-limiting molecule of the H1R signal because the signal is increased with elevated receptor expression level. We discovered that the stimulation of H1R induced H1R gene expression through PKCδ activation, resulting in receptor upregulation. The mechanism of H1R gene expression was revealed to play a key role in the receptor expression level in studies using cultured HeLa cells and allergic rhinitis model rats. Preseasonal prophylactic treatment with antihistamines is recommended for the therapy of pollinosis. However, the mechanism of the therapy remains to be elucidated. We demonstrated that repeated pretreatment treatment with antihistamines in the allergic rhinitis model rats resulted not only in improvement of symptoms but also in suppressed elevation of H1R mRNA levels in the nasal mucosa. A clinical trial was then initiated. When symptoms and H1R mRNA levels in the nasal mucosa of pollinosis patients with or without preseasonal prophylactic treatment with antihistamines were examined, both symptoms and high levels of H1R mRNA were significantly improved in treated compared with untreated patients. These results strongly suggest that H1R is an allergic disease-sensitive gene.
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Affiliation(s)
- Hiroyuki Mizuguchi
- Department of Molecular Pharmacology, Institute of Health Biosciences, The University of Tokushima Graduate School.
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27
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Fukui H. [Pathological significance of increased histamine H(1)-receptor gene expression]. Nihon Yakurigaku Zasshi 2010; 135:153-157. [PMID: 20410658 DOI: 10.1254/fpj.135.153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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