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Galván-Morales MÁ. Perspectives of Proteomics in Respiratory Allergic Diseases. Int J Mol Sci 2023; 24:12924. [PMID: 37629105 PMCID: PMC10454482 DOI: 10.3390/ijms241612924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/18/2023] [Accepted: 07/27/2023] [Indexed: 08/27/2023] Open
Abstract
Proteomics in respiratory allergic diseases has such a battery of techniques and programs that one would almost think there is nothing impossible to find, invent or mold. All the resources that we document here are involved in solving problems in allergic diseases, both diagnostic and prognostic treatment, and immunotherapy development. The main perspectives, according to this version, are in three strands and/or a lockout immunological system: (1) Blocking the diapedesis of the cells involved, (2) Modifications and blocking of paratopes and epitopes being understood by modifications to antibodies, antagonisms, or blocking them, and (3) Blocking FcεRI high-affinity receptors to prevent specific IgEs from sticking to mast cells and basophils. These tools and targets in the allergic landscape are, in our view, the prospects in the field. However, there are still many allergens to identify, including some homologies between allergens and cross-reactions, through the identification of structures and epitopes. The current vision of using proteomics for this purpose remains a constant; this is also true for the basis of diagnostic and controlled systems for immunotherapy. Ours is an open proposal to use this vision for treatment.
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Affiliation(s)
- Miguel Ángel Galván-Morales
- Departamento de Atención a la Salud, CBS. Unidad Xochimilco, Universidad Autónoma Metropolitana, Calzada del Hueso 1100, Villa Quietud, Coyoacán, Ciudad de México 04960, Mexico
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Soma T, Uchida Y, Nakagome K, Hoshi R, Nagata M. Eicosanoids seasonally impact pulmonary function in asthmatic patients with Japanese cedar pollinosis. Allergol Int 2020; 69:594-600. [PMID: 32600924 DOI: 10.1016/j.alit.2020.04.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 03/21/2020] [Accepted: 04/04/2020] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Condition of asthma in patients with asthma and concomitant seasonal allergic rhinitis (SAR) deteriorates during the Japanese cedar pollen (JCP) season. However, the underlying mechanisms remain unclear. METHODS We analyzed seasonal variations in eicosanoid levels in the airways of patients with asthma and concomitant SAR sensitized to JCP (N = 29, BA-SAR-JCP group) and those not sensitized (N = 13, BA-AR-non-JCP group) during the JCP season. The association between changes in eicosanoid concentrations and pulmonary function was assessed. Exhaled breath condensate (EBC) was collected, and pulmonary function tests were performed during the JCP and non-JCP seasons. The cysteinyl leukotriene (CysLT), thromboxane B2 (TXB2), prostaglandin D2-methoxime (PGD2-MOX), and leukotriene B4 (LTB4) levels in the collected EBC were measured via enzyme-linked immunosorbent immunoassays. RESULTS The log CysLT levels significantly increased in the BA-SAR-JCP group during the JCP season compared with the non-JCP season (1.78 ± 0.55, 1.39 ± 0.63 pg/mL, mean ± standard deviation, respectively, p = 0.01) and those in the BA-AR-non-JCP group during the JCP season (1.39 ± 0.38 pg/mL, p = 0.04). Moreover, the log TXB2 levels seemed to increase. However, the log LTB4 and log PGD2-MOX levels did not increase. The changes in the log CysLT levels during the two seasons were negatively correlated to forced expiratory volume in one second (FEV1) in the BA-SAR-JCP group (r = -0.52, p < 0.01). CONCLUSIONS In the BA-SAR-JCP group, seasonal increases in eicosanoid levels in the airway likely promoted deterioration in pulmonary function despite optimal maintenance treatment.
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Affiliation(s)
- Tomoyuki Soma
- Department of Respiratory Medicine, Saitama Medical University, Saitama, Japan; Allergy Center, Saitama Medical University, Saitama, Japan.
| | - Yoshitaka Uchida
- Department of Respiratory Medicine, Saitama Medical University, Saitama, Japan; Allergy Center, Saitama Medical University, Saitama, Japan
| | - Kazuyuki Nakagome
- Department of Respiratory Medicine, Saitama Medical University, Saitama, Japan; Allergy Center, Saitama Medical University, Saitama, Japan
| | - Rie Hoshi
- Allergy Center, Saitama Medical University, Saitama, Japan; Hoshi Clinic, Saitama, Japan
| | - Makoto Nagata
- Department of Respiratory Medicine, Saitama Medical University, Saitama, Japan; Allergy Center, Saitama Medical University, Saitama, Japan
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Ihara F, Sakurai D, Yonekura S, Iinuma T, Yagi R, Sakurai T, Ito T, Matsuura A, Morimoto Y, Arai T, Suzuki S, Katayama K, Nakayama T, Okamoto Y. Identification of specifically reduced Th2 cell subsets in allergic rhinitis patients after sublingual immunotherapy. Allergy 2018. [PMID: 29517806 DOI: 10.1111/all.13436] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Although Th2 cells are well known to play important roles in allergic diseases including allergic rhinitis (AR), the factors that induce and sustain the pathogenesis of AR remain unclear. The recent development of sublingual immunotherapy (SLIT) is expected to allow changes to the underlying pathogenesis of AR. However, which Th2 cell subsets are important in house dust mite-induced AR (HDM-AR), the influence of SLIT on the pathogenic Th2 cells, and the association of Th2 cell subsets with SLIT efficacy have not been clarified. METHODS The cytokine production and frequency of HDM-reactive T-cell subsets in peripheral blood mononuclear cells (PBMCs) were evaluated using flow cytometry in 89 HDM-AR patients (placebo [n = 43] and HDM 300 IR [n = 46]) who participated in a placebo-controlled study of SLIT with HDM tablets. All patients provided samples both before treatment as a baseline and at the end of the 52-week study. The PBMCs were stained with CellTrace™ Violet (CTV) before culture with HDM extract, and HDM-reactive T cells were detected as the proliferated cells with diminished CTV. RESULTS HDM-reactive IL-5+ IL-13+ CD27- CD161+ CD4+ cells and ST2+ CD45RO+ CD4+ cells were observed in the peripheral blood from each patient with HDM-AR; these cells significantly decreased after SLIT in the group treated with active tablets. HDM-reactive ST2+ CD45RO+ CD4+ cells were significantly lower in active-responders. CONCLUSION Allergen-reactive ST2+ CD45RO+ CD4+ cells or those combined with IL-5+ IL-13+ CD27- CD161+ CD4+ cells may be useful as markers indicating the successful treatment of SLIT. These cells may play a crucial role in the pathogenesis of AR as pathogenic memory Th2 cells.
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Affiliation(s)
- F. Ihara
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
- Department of Medical Immunology; Graduate School of Medicine; Chiba University; Chiba Japan
| | - D. Sakurai
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - S. Yonekura
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - T. Iinuma
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - R. Yagi
- Department of Immunology; Graduate School of Medicine; Chiba University; Chiba Japan
| | - T. Sakurai
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - T. Ito
- Department of Immunology; Graduate School of Medicine; Chiba University; Chiba Japan
| | - A. Matsuura
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - Y. Morimoto
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - T. Arai
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - S. Suzuki
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
| | - K. Katayama
- Drug Discovery & Disease Research Laboratory; Shionogi & Co., Ltd.; Osaka Japan
| | - T. Nakayama
- Department of Immunology; Graduate School of Medicine; Chiba University; Chiba Japan
| | - Y. Okamoto
- Department of Otorhinolaryngology, Head and Neck Surgery; Graduate School of Medicine; Chiba University; Chiba Japan
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Chang DY, Lee J, Choi SW, Lee HJ, Kang H, Yeo SC, Joo YH, Cho HJ, Jeon SY, Kim RB, Kim SW. Interleukin-4 enzyme-linked immunospot assay may be useful for diagnosing sensitization to house dust mite. Int Forum Allergy Rhinol 2016; 6:1007-1012. [PMID: 27122253 DOI: 10.1002/alr.21786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 02/18/2016] [Accepted: 03/08/2016] [Indexed: 11/12/2022]
Abstract
BACKGROUND The skin prick test (SPT) is considered a standard test for identification of allergens, but it has some limitations in clinical practice. The multiple allergen simultaneous test (MAST), which measures allergen-specific immunoglobulin E in patients' serum, is a widely used alternative test, but is limited by its relatively low sensitivity and specificity. As a novel diagnostic test to identify allergens, we investigated the sensitivity and specificity of an interleukin-4 (IL-4) enzyme-linked immunospot (ELISpot) assay for Dermatophagoides farinae (Der f) and Dermatophagoides pteronyssinus (Der p). METHODS Based on the symptoms and SPT results, 43 house dust mite (HDM) allergic rhinitis (AR) patients and 41 control subjects were included. Peripheral blood was drawn from each subject for IL-4 ELISpot assay and MAST. The receiver operating characteristic (ROC) curve analysis was conducted to determine the cutoff values. Sensitivity, specificity, and positive and neg predictive values were compared between the 2 tests. RESULTS The sensitivity, specificity, and areas under the ROC curve (AUCs) of the IL-4 ELISpot assay were 88.4%, 97.6%, and 0.939 for Der f, and 95.3%, 97.5%, and 0.971 for Der p, respectively. However, the sensitivity, specificity, and AUC of MAST were 76.7%, 73.2%, and 0.777 for Der f, and 69.8%, 75.6%, and 0.788 for Der p, respectively. CONCLUSION The IL-4 ELISpot assay showed higher sensitivity, specificity, and AUC than MAST, which indicates its clinical feasibility for diagnosing allergy for HDM. A further study is needed to determine the accuracy of the IL-4 ELISpot assay for other common allergens.
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Affiliation(s)
- Dong-Yeop Chang
- Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Jino Lee
- Laboratory of Immunology and Infectious Diseases, Graduate School of Medical Science and Engineering, KAIST, Daejeon, Republic of Korea
| | - Sung-Won Choi
- Laboratory of Immunology and Infectious Diseases, Graduate School of Medical Science and Engineering, KAIST, Daejeon, Republic of Korea
| | - Hyeong Joo Lee
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Hyunmo Kang
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Seong Chul Yeo
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Yeon-Hee Joo
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Hyun-Jin Cho
- Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Sea-Yuong Jeon
- Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea.,Department of Otorhinolaryngology, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
| | - Rock Bum Kim
- Regional Cardiocerebrovascular Disease Center, Gyeongsang National University Hospital, Jinju, Republic of Korea
| | - Sang-Wook Kim
- Institute of Health Sciences, Gyeongsang National University, Jinju, Republic of Korea. .,Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Republic of Korea. .,Department of Otorhinolaryngology, Gyeongsang National University School of Medicine, Jinju, Republic of Korea.
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Sakaida H, Masuda S, Takeuchi K. Measurement of Japanese cedar pollen-specific IgE in nasal secretions. Allergol Int 2014; 63:467-73. [PMID: 24957114 DOI: 10.2332/allergolint.13-oa-0668] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Accepted: 03/01/2014] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Japanese cedar pollen (JCP) is the most common allergen for seasonal allergic rhinitis in Japan. Little is known about local production of immunoglobulin (Ig)E in people with or without Japanese cedar pollinosis. The aims of this study were to measure levels of JCP-specific IgE in nasal secretions and determine correlations with levels in serum. METHODS Forty-six subjects were enrolled in this study, comprising 24 symptomatic subjects, 9 asymptomatic subjects sensitized to JCP, and 13 subjects not sensitized to JCP. Nasal secretions were obtained during a period of Japanese cedar dispersal, and levels of JCP-specific IgE were measured with CAP-fluorescent enzyme immunoassay. Serum JCP-specific IgE and total IgE were also measured using the same method. RESULTS Among the 46 subjects enrolled, JCP-specific IgE in nasal secretions was measureable in 43 subjects. Irrespective of symptom development, sensitized subjects showed higher levels of JCP-specific IgE in nasal secretions than non-sensitized subjects. A significant moderate correlation was observed between JCP-specific IgE levels in nasal secretions and serum in all 43 subjects. With stratification by subject group, only symptomatic subjects showed a substantial correlation between JCP-specific IgE levels in nasal secretions and serum. CONCLUSIONS Our results imply a certain association between JCP-specific IgE in nasal secretions and sensitization of Japanese cedar pollinosis. Therefore, levels of allergen-specific IgE in nasal secretions can be used as an alternative diagnostic marker for allergic rhinitis patients.
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Affiliation(s)
- Hiroshi Sakaida
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Mie, Japan
| | - Sawako Masuda
- Department of Otorhinolaryngology, Mie National Hospital, Mie, Japan
| | - Kazuhiko Takeuchi
- Department of Otorhinolaryngology, Head & Neck Surgery, Mie University Graduate School of Medicine, Mie, Japan
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Effector and central memory T helper 2 cells respond differently to peptide immunotherapy. Proc Natl Acad Sci U S A 2014; 111:E784-93. [PMID: 24516158 DOI: 10.1073/pnas.1316178111] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Peptide immunotherapy (PIT) offers realistic prospects for the treatment of allergic diseases, including allergic asthma. Much is understood of the behavior of naive T cells in response to PIT. However, treatment of patients with ongoing allergic disease requires detailed understanding of the responses of allergen-experienced T cells. CD62L expression by allergen-experienced T cells corresponds to effector/effector memory (CD62L(lo)) and central memory (CD62L(hi)) subsets, which vary with allergen exposure (e.g., during, or out with, pollen season). The efficacy of PIT on different T helper 2 (Th2) cell memory populations is unknown. We developed a murine model of PIT in allergic airway inflammation (AAI) driven by adoptively transferred, traceable ovalbumin-experienced Th2 cells. PIT effectively suppressed AAI driven by unfractionated Th2 cells. Selective transfer of CD62L(hi) and CD62L(lo) Th2 cells revealed that these two populations behaved differently from one another and from previously characterized (early deletional) responses of naive CD4(+) T cells to PIT. Most notably, allergen-reactive CD62L(lo) Th2 cells were long-lived within the lung after PIT, before allergen challenge, in contrast to CD62L(hi) Th2 cells. Despite this, PIT was most potent against CD62L(lo) Th2 cells in protecting from AAI, impairing their ability to produce Th2 cytokines, whereas this capacity was heightened in PIT-treated CD62L(hi) Th2 cells. We conclude that Th2 cells do not undergo an early deletional form of tolerance after PIT. Moreover, memory Th2 subsets respond differently to PIT. These findings have implications for the clinical translation of PIT in different allergic scenarios.
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Uekusa Y, Inamine A, Yonekura S, Horiguchi S, Fujimura T, Sakurai D, Yamamoto H, Suzuki H, Hanazawa T, Okamoto Y. Immunological parameters associated with the development of allergic rhinitis: a preliminary prospective study. Am J Rhinol Allergy 2012; 26:92-6. [PMID: 22487284 DOI: 10.2500/ajra.2012.26.3706] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Many subjects are sensitized to Japanese cedar pollen but do not develop allergic rhinitis (AR). The aim of this study was to examine the immunologic parameters related to the development of AR in sensitized subjects. METHODS The subjects were 33 adults who were sensitized to Japanese cedar pollen, but had not developed as of 2007. Cedar pollen-specific IgE (sIgE) and total IgE (tIgE) in serum, cedar pollen antigen (Cry j 1) Cry j-specific memory Th2 cell clone size, and the Cry j-specific induced regulatory T cell (iTreg) level were examined before and after the season in 2008. RESULTS Eight of the 33 subjects developed cedar pollinosis. The sIgE titers before the season in these eight subjects did not differ from those in the subjects who did not develop pollinosis, but the titers after the season were significantly higher in the group that developed pollinosis. The sIgE/tIgE ratio increased in almost all subjects, but the ratio was significantly higher before the season in the subjects who developed pollinosis. Cry j-specific Th2 cells were detected in all subjects, but the clone size only increased in those that developed pollinosis. The Cry j-specific iTreg population did not differ between the two groups. CONCLUSION A high sIgE/tIgE ratio before the season may be predictive of development of pollinosis, and an increase in the allergen-specific Th2 clone size during the pollen season could be a biomarker for pollinosis. The role of allergen-specific iTreg cells in the development of pollinosis could not be clarified in this preliminary study.
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Affiliation(s)
- Yasuhiro Uekusa
- Departments of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
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Yonekura S, Okamoto Y, Horiguchi S, Sakurai D, Chazono H, Hanazawa T, Okawa T, Aoki S, Konno A. Effects of Aging on the Natural History of Seasonal Allergic Rhinitis in Middle-Aged Subjects in South Chiba, Japan. Int Arch Allergy Immunol 2012; 157:73-80. [DOI: 10.1159/000324475] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Accepted: 01/14/2011] [Indexed: 11/19/2022] Open
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Okayama T, Matsuno Y, Yasuda N, Tsukui T, Suzuta Y, Koyanagi M, Sakaguchi M, Ishii Y, Olivry T, Masuda K. Establishment of a quantitative ELISA for the measurement of allergen-specific IgE in dogs using anti-IgE antibody cross-reactive to mouse and dog IgE. Vet Immunol Immunopathol 2011; 139:99-106. [DOI: 10.1016/j.vetimm.2010.09.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2010] [Revised: 08/02/2010] [Accepted: 09/05/2010] [Indexed: 11/28/2022]
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FUJIMURA M, MASUDA K, HAYASHIYA M, OKAYAMA T. Flow Cytometric Analysis of Lymphocyte Proliferative Responses to Food Allergens in Dogs with Food Allergy. J Vet Med Sci 2011; 73:1309-17. [DOI: 10.1292/jvms.10-0410] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Almqvist C, Bradding PB, Chakir J, Ebo D, Grattan C, Kariyawasam HH, Savilahti E, Scadding GK, Vieths S, Wardlaw AJ, Woodfolk J. Developments in the field of allergy in 2008 through the eyes of Clinical & Experimental Allergy. Clin Exp Allergy 2010; 39:1482-98. [PMID: 19954428 DOI: 10.1111/j.1365-2222.2009.03355.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In 2008, many thousands of articles were published on the subject of allergic disease with over 200 reviews, editorials and original papers in Clinical & Experimental Allergy alone. These represent a considerable amount of data and even the most avid reader could only hope to assimilate a small fraction of this knowledge. There is therefore a pressing need for the key messages that emerge from a journal such as Clinical & Experimental Allergy to be summarized by experts in the field in a form that highlights the significance of the developments and sets them in the context of important findings in the field published in other journals. This also has the advantage of making connections between new data in conditions such as asthma, where articles often appear in different sections of the journal. As can be seen from this review, the body of work is diverse both in terms of the disease of interest and the discipline that has been used to investigate it. However, taken as a whole, we hope that the reader will gain a flavour of where the field is mature, where there remain controversies and where the cutting edge is leading.
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Maeda-Yamamoto M, Ema K, Monobe M, Shibuichi I, Shinoda Y, Yamamoto T, Fujisawa T. The efficacy of early treatment of seasonal allergic rhinitis with benifuuki green tea containing O-methylated catechin before pollen exposure: an open randomized study. Allergol Int 2009; 58:437-44. [PMID: 19542766 DOI: 10.2332/allergolint.08-oa-0066] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2008] [Accepted: 03/17/2009] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND We previously reported that 'benifuuki' green tea containing O-methylated catechin significantly relieved the symptoms of perennial or seasonal rhinitis compared with a placebo green tea that did not contain O-methylated catechin in randomized double-blind clinical trials. In this study we assessed the effects of 'benifuuki' green tea on clinical symptoms of seasonal allergic rhinitis. METHODS An open-label, single-dose, randomized, parallel-group study was performed on 38 subjects with Japanese cedar pollinosis. The subjects were randomly assigned to long-term (December 27, 2006-April 8, 2007, 1.5 months before pollen exposure) or short-term (February 15, 2007: after cedar pollen dispersal--April 8, 2007) drinking of a 'benifuuki' tea drink containing 34 mg O-methylated catechin per day. Each subject recorded their daily symptom scores in a diary. The primary efficacy variable was the mean weekly nasal symptom medication score during the study period. RESULTS The nasal symptom medication score in the long-term intake group was significantly lower than that of the short-term intake group at the peak of pollen dispersal. The symptom scores for throat pain, nose-blowing, tears, and hindrance to activities of daily living were significantly better in the long-term group than the short-term group. In particular, the differences in the symptom scores for throat pain and nose-blowing between the 2 groups were marked. CONCLUSIONS We conclude that drinking 'benifuuki' tea for 1.5 months prior to the cedar pollen season is effective in reducing symptom scores for Japanese cedar pollinosis.
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Affiliation(s)
- Mari Maeda-Yamamoto
- National Institute of Vegetable and Tea Sciences, National Agriculture and Food Research Organization, Shizuoka.
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Okamoto Y, Horiguchi S, Yamamoto H, Yonekura S, Hanazawa T. Present situation of cedar pollinosis in Japan and its immune responses. Allergol Int 2009; 58:155-62. [PMID: 19307773 DOI: 10.2332/allergolint.08-rai-0074] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2008] [Indexed: 01/22/2023] Open
Abstract
Recent observations have suggested significant worldwide increase in the prevalence of allergic rhinitis and cedar pollinosis. In Japan, Japanese cedar (Cryptometria japonica) and Japanese cypress (Chamaecyparis obtusa) pollens are considered to be the major unique allergens and their extent of dispersal is quite large, travelling more than 100km and thus causing serious pollinosis. Cedar pollinosis is a typical type 1 allergic disease by an adaptive immune response that occurs through the induction of allergen-specific effector T cells from naïve T cells. We examined the number of Japanese cedar pollen specific memory Th cells in the peripheral blood of the patients and found that the cedar pollen specific IL-4-producing Th2 memory cells increased during the pollen season and decreased during the off-season. However, more than 60% of the cedar-specific memory Th2 cells survived up to 8 months after the pollen season. Natural killer T(NKT) cells represent a unique lymphocyte subpopulation and their activity is not restricted to MHC antigens. NKT cells play an important role in innate immunity, however, the participation in development of allergic rhinitis could not be clarified.
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Affiliation(s)
- Yoshitaka Okamoto
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
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Weber RW. On the cover. Japanese cedar. Ann Allergy Asthma Immunol 2008; 101:A4. [PMID: 19055196 DOI: 10.1016/s1081-1206(10)60278-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Richard W Weber
- National Jewish Medical & Research Center, 1400 Jackson Street Room J326, Denver, CO 80206, USA
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