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Choi YJ, Oh JW. Identification and Standardization of Hum j 6 is Crucial to the Diagnosis of Pollinosis Due to Japanese Hop. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2023; 15:702-704. [PMID: 37957790 PMCID: PMC10643853 DOI: 10.4168/aair.2023.15.6.702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/19/2023] [Accepted: 10/22/2023] [Indexed: 11/15/2023]
Affiliation(s)
- Young-Jin Choi
- Department of Pediatrics, Hanyang University Guri Hospital, Guri, Korea
- Department of Pediatrics, College of Medicine, Hanyang University, Seoul, Korea
| | - Jae-Won Oh
- Department of Pediatrics, Hanyang University Guri Hospital, Guri, Korea
- Department of Pediatrics, College of Medicine, Hanyang University, Seoul, Korea.
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2
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Jung CG, Park HS. Emerging Hop Japanese Pollinosis in Asia. Curr Protein Pept Sci 2022; 23:714-720. [PMID: 35658882 DOI: 10.2174/1389203723666220603155320] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 04/22/2022] [Accepted: 04/22/2022] [Indexed: 12/31/2022]
Abstract
Hop Japanese (Hop J) pollen has been considered one of the major causative pollen allergens in Far East Asia in the autumn season. The sensitization rate, pollen count, and allergenicity of Hop J pollens are increasing in this region because of increased air pollution and global warming. However, commercial skin test agents for the diagnosis and allergen extracts for the allergen immunotherapy are not available. This review summarizes recent data on clinical impact of Hop J pollinosis in order to facilitate the development of diagnostic and therapeutic agents for this region.
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Affiliation(s)
- Chang-Gyu Jung
- Department of Allergy and Clinical Immunology, Keimyung University School of Medicine, Daegu, Korea
| | - Hae-Sim Park
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
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Park CS, Jo EJ, Kim MY, Nam YH, Lee SE, Choi GS, Jeong YY, Kim HK, Oh JW, Park HK. Change in sensitization to inhalant allergens in adults with respiratory allergic disease in Busan and Gyeongsangnam-do province. ALLERGY ASTHMA & RESPIRATORY DISEASE 2022. [DOI: 10.4168/aard.2022.10.3.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Chan Sun Park
- Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Eun-Jung Jo
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Mi-Yeong Kim
- Department of Internal Medicine, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Young-Hee Nam
- Department of Internal Medicine, College of Medicine, Dong-A University, Busan, Korea
| | - Seung-Eun Lee
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Gil-Soon Choi
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
| | - Yi-Yeong Jeong
- Department of Internal Medicine, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Hee-Kyoo Kim
- Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
| | - Jae-Won Oh
- Department of Pediatrics, Hanyang University Guri Hospital, Hanyang University of College of Medicine, Seoul, Korea
| | - Hye-Kyung Park
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
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Jang SW, Jeong KY, Yuk JE, Lee J, Park KH, Park JW. Allergen Homologues, Pathogenesis-Related 1, Polygalacturonase, and Pectin Methyl Esterase from a Japanese Hop. Protein Pept Lett 2021; 28:362-371. [PMID: 32798367 DOI: 10.2174/0929866527666200813201924] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/21/2020] [Accepted: 06/10/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Japanese hop is an important cause of weed pollinosis in East Asia. Its pollen is abundant in autumn. This pollen is known to be the cause of many allergic diseases. However, molecular characteristics of its allergens have not been elucidated. OBJECTIVE In this study, we produced recombinant proteins of allergen homologues from Japanese hop by the analysis of expressed sequence tags (EST), and evaluated its allergenicity. METHODS cDNA library was constructed using as little as 50 ng of total RNA from Japanese hop pollen. Allergen homologues were identified by the initial screening of 963 EST clones. Recombinant proteins were overexpressed in the E. coli expression system and purified using Ni-nitrilotriacetic acid-agarose. Purified proteins were analyzed by ELISA. RESULTS AND DISCUSSION Japanese hop pathogenesis-related 1 protein (PR-1) shares 37.0 to 44.4% of amino acid sequence identity with Art v 2, Cuc m 3, and Cyn d 24. Pectin methyl esterase (PME) shows 23.2 to 50.2% of identities to Act d 7, Ole e 11, and Sal k 1. Polygalacturonase (PGs) shows 16.7 to 19.3% of identities to Phl p 13, Cry j 2, Cha o 2, Jun a 2, Pla a 2, and Pla or 2. IgE antibodies from Japanese hop allergy patients' sera recognized PR-1 (3.4%), PME (13.8%), PGs (3.7%), and profilin (13.8%), respectively. CONCLUSION Novel allergenic components were identified, even though low IgE reactivity was displayed reflecting the low degree of cross-reactivity with other pollen allergens. We believe that these molecules have worth further studies.
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Affiliation(s)
- Seok Woo Jang
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Kyoung Yong Jeong
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Ji Eun Yuk
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jongsun Lee
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Kyung Hee Park
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul 03722, Korea
| | - Jung-Won Park
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul 03722, Korea
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Jeong KY, Park JW. Allergens of Regional Importance in Korea. FRONTIERS IN ALLERGY 2021; 2:652275. [PMID: 35386990 PMCID: PMC8974691 DOI: 10.3389/falgy.2021.652275] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 02/17/2021] [Indexed: 11/13/2022] Open
Abstract
Allergen repertoire should reflect the region's climate, flora, and dining culture to allow for a better diagnosis. In Korea, tree pollens of oak and birch in the spring in conjunction with weed pollens of mugwort, ragweed, and Japanese hop are the main causes of seasonal allergic rhinitis. More specifically, the sawtooth oak in Korea and the Japanese hop in East Asia make a difference from western countries. Among food allergens, the sensitization to silkworm pupa and buckwheat is also common in Korean patients. Honey bee venom due to apitherapy in traditional medicine and Asian needle ant, Pachycondyla chinensis, are important causes of anaphylaxis in Korea. Climate change, frequent overseas traveling, and international product exchanges make situations more complicated. Ragweed, for example, was not native to Korea, but invaded the country in the early 1950s. Recently, Japanese hop and Asian needle ants have been recognized as important invasive ecosystem disturbing species in western countries. However, the molecular properties of the component allergens from these unique culprit allergens have been poorly characterized. The present review summarizes the molecular studies on the allergens of regional importance in Korea.
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Xi GP, Zhang Q, Yin J. Establishment and characterization of murine models of asthma and subcutaneous immunotherapy for Humulus pollen allergy. IMMUNITY INFLAMMATION AND DISEASE 2021; 9:443-455. [PMID: 33434413 PMCID: PMC8127558 DOI: 10.1002/iid3.405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 12/24/2020] [Accepted: 12/28/2020] [Indexed: 11/20/2022]
Abstract
Introduction Humulus pollen is an important cause of allergic asthma in East Asia. There have been some murine models for Humulus pollen allergy established by intraperitoneal (IP) sensitization and nasal drip stimulation, but they were not comprehensive enough. Here, we used atomized inhalation for challenge and compared the subcutaneous (SC) and IP sensitization routes to determine the optimal method to establish a model of asthma induced by Humulus pollen. Subsequently, we tried to develop a rapid subcutaneous immunotherapy (SCIT) model for Humulus allergy. Methods BALB/c Mice were sensitized through the SC or IP route, with respective reference to previously established sensitization methods and allergen dosing, and challenged with nebulized Humulus pollen extract to induce asthma. To compare the two sensitization methods, airway hyperresponsiveness (AHR), inflammatory cell infiltration, allergen‐specific serum immunoglobulin (Ig)E (sIgE) levels, cytokine levels, and lung histopathology were assessed. The effects of SCIT (once every other day for 16 days) on airway inflammation, AHR, sIgE, and allergen‐specific serum IgG2a (sIgG2a) levels were evaluated by using the model established in this study. Results Although mice sensitized by the SC or IP routes both showed AHR and airway inflammation, the SC route elicited significantly higher levels of sIgE, eosinophil inflammation, and T helper type 2 cytokines, compared with the IP route. SCIT in the treatment group significantly reduced the titers of sIgE, enhanced the titers of sIgG2a, and effectively alleviated pulmonary inflammation and AHR, compared with the vehicle group. Conclusions The SC route can be used to establish a murine model of Humulus pollen allergy that recapitulates the characteristics of clinical allergic asthma. Short‐term SCIT can significantly improve symptoms and pathophysiology in asthmatic mice.
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Affiliation(s)
- Guang P Xi
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing, China.,National Clinical Research Center for Dermatologic and immunologic Diseases, Beijing, China
| | - Qian Zhang
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing, China.,National Clinical Research Center for Dermatologic and immunologic Diseases, Beijing, China
| | - Jia Yin
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing, China.,National Clinical Research Center for Dermatologic and immunologic Diseases, Beijing, China
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7
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Shin JY, Han MJ, Cho C, Kim KR, Ha JC, Oh JW. Allergenic Pollen Calendar in Korea Based on Probability Distribution Models and Up-to-Date Observations. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2020; 12:259-273. [PMID: 32009321 PMCID: PMC6997285 DOI: 10.4168/aair.2020.12.2.259] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/08/2019] [Accepted: 10/21/2019] [Indexed: 11/20/2022]
Abstract
Purpose The pollen calendar is the simplest forecasting method for pollen concentrations. As pollen concentrations are liable to seasonal variations due to alterations in climate and land-use, it is necessary to update the pollen calendar using recent data. To attenuate the impact of considerable temporal and spatial variability in pollen concentrations on the pollen calendar, it is essential to employ a new methodology for its creation. Methods A pollen calendar was produced in Korea using data from recent observations, and a new method for creating the calendar was proposed, considering both risk levels and temporal resolution of pollen concentrations. A probability distribution was used for smoothing concentrations and determining risk levels. Airborne pollen grains were collected between 2007 and 2017 at 8 stations; 13 allergenic pollens, including those of alder, Japanese cedar, birch, hazelnut, oak, elm, pine, ginkgo, chestnut, grasses, ragweed, mugwort and Japanese hop, were identified from the collected grains. Results The concentrations of each pollen depend on locations and seasons due to large variability in species distribution and their environmental condition. In the descending order of concentration, pine, oak and Japanese hop pollens were found to be the most common in Korea. The pollen concentrations were high in spring and autumn, and those of oak and Japanese hop were probably the most common cause of allergy symptoms in spring and autumn, respectively. High Japanese cedar pollen counts were observed in Jeju, while moderate concentrations were in Jeonju, Gwangju and Busan. Conclusions A new methodology for the creation of a pollen calendar was developed to attenuate the impact of large temporal and spatial variability in pollen concentrations. This revised calendar should be available to the public and allergic patients to prevent aggravation of pollen allergy.
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Affiliation(s)
- Ju Young Shin
- Applied Meteorology Research Division, National Institute of Meteorological Sciences, Seogwipo, Korea
| | - Mae Ja Han
- Applied Meteorology Research Division, National Institute of Meteorological Sciences, Seogwipo, Korea
| | - Changbum Cho
- Applied Meteorology Research Division, National Institute of Meteorological Sciences, Seogwipo, Korea
| | - Kyu Rang Kim
- Applied Meteorology Research Division, National Institute of Meteorological Sciences, Seogwipo, Korea.
| | - Jong Chul Ha
- Applied Meteorology Research Division, National Institute of Meteorological Sciences, Seogwipo, Korea
| | - Jae Won Oh
- Department of Pediatrics, Hanyang University Guri Hospital, Hanyang University College of Medicine, Seoul, Korea.
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Jeong KY, Lee J, Mistrello G, Park KH, Park JW. IgE Cross-Reactivity between Humulus japonicus and Humulus lupulus. Yonsei Med J 2018; 59:852-856. [PMID: 30091318 PMCID: PMC6082984 DOI: 10.3349/ymj.2018.59.7.852] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/09/2018] [Accepted: 07/11/2018] [Indexed: 11/27/2022] Open
Abstract
PURPOSE Japanese hop (Humulus japonicus) is a major cause of weed pollinosis in East Asia. However, supplies of commercial allergen extract from this plant have not met clinical demand. The pollen of common hop (Humulus lupulus), a closely related species, may provide an alternative source if there is strong IgE cross-reactivity between these two species. We aimed to compare the IgE cross-reactivity and allergenicity of common hop and Japanese hop pollen. MATERIALS AND METHODS Cross-reactivity was measured by inhibition ELISA. One- and two-dimensional (2D) gel analyses combined with IgE immunoblotting and mass spectrometry [liquid chromatography coupled to electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS)] were performed to detect IgE-reactive pollen components. RESULTS Up to 16.7% of IgE reactivity to Japanese hop was inhibited by common hop. A 12-kDa protein component of Japanese hop pollen that showed the most potent IgE reaction was absent from common hop. Six IgE-reactive components from Japanese hop were detected by 2D gel electrophoresis and LC-ESI-MS/MS, but showed low Mascot scores, preventing positive identification. CONCLUSION No significant IgE cross-reaction was observed for Japanese and common hop pollen allergens. Development of allergy diagnostic and immunotherapeutic reagents based on Japanese hop pollen are urgently needed.
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Affiliation(s)
- Kyoung Yong Jeong
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea.
| | - Jongsun Lee
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Gianni Mistrello
- Research and Development Department, Lofarma S.p.A, Viale Cassala, Milan, Italy
| | - Kyung Hee Park
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Won Park
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea.
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9
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Jung CG, Yang EM, Lee JH, Kim HM, Park HS. Evaluation of the allergenic relationship between Humulus japonicusand Humulus lupuluspollen allergens. ALLERGY ASTHMA & RESPIRATORY DISEASE 2017. [DOI: 10.4168/aard.2017.5.4.217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Chang-Gyu Jung
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
| | - Eun-Mi Yang
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
| | - Ji-Ho Lee
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
| | - Hyun Mi Kim
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
| | - Hae-Sim Park
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea
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10
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Jeong KY, Son M, Choi SY, Park KH, Park HJ, Hong CS, Lee JH, Park JW. Standardization of Weed Pollen Extracts, Japanese Hop and Mugwort, in Korea. Yonsei Med J 2016; 57:399-406. [PMID: 26847293 PMCID: PMC4740533 DOI: 10.3349/ymj.2016.57.2.399] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 07/24/2015] [Accepted: 08/10/2015] [Indexed: 11/27/2022] Open
Abstract
PURPOSE Japanese hop (Humulus spp.) and mugwort (Artemisia spp.) are notable causes of autumn pollinosis in East Asia. However, Japanese hop and mugwort pollen extracts, which are widely used for the diagnosis, have not been standardized. This study was performed to standardize Japanese hop and mugwort pollen extracts. MATERIALS AND METHODS Allergen extracts were prepared in a standardized way using locally collected Humulus japonicus and purchased Artemisia vulgaris pollens. The immunoglobulin E (IgE) reactivities of prepared extracts were compared with commercial extracts via IgE immunoblotting and inhibition analyses. Intradermal skin tests were performed to determine the bioequivalent allergy unit (BAU). RESULTS The IgE reactive components of the extracts via IgE immunoblotting were similar to those of commercial extracts. A 11-kDa allergen showed the strongest IgE reactivity in Japanese hop, as did a 28-kDa allergen in mugwort pollen extracts. Allergenic potencies of the investigatory Japanese hop and mugwort extracts were essentially indistinguishable from the commercial ones. Sums of erythema of 50 mm by the intradermal skin test (ΣED50) were calculated to be 14.4th and 13.6th three-fold dilutions for Japanese hop and mugwort extracts, respectively. Therefore, the allergenic activity of the prepared extracts was 90827.4 BAU/mg for Japanese hop and 34412 BAU/mg for mugwort. CONCLUSION We produced Japanese hop and mugwort pollen extracts using a standardized method. Standardized Japanese hop and mugwort pollen extracts will facilitate the production of improved diagnostic and immunotherapeutic reagents.
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Affiliation(s)
- Kyoung Yong Jeong
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Mina Son
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Soo Young Choi
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Hee Park
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Hye Jung Park
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Chein Soo Hong
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Hyun Lee
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jung Won Park
- Department of Internal Medicine, Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea.
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Jeong KY, Lee JH, Kim EJ, Lee JS, Cho SH, Hong SJ, Park JW. Current status of standardization of inhalant allergen extracts in Korea. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2014; 6:196-200. [PMID: 24843793 PMCID: PMC4021236 DOI: 10.4168/aair.2014.6.3.196] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Accepted: 12/02/2013] [Indexed: 11/20/2022]
Abstract
Allergy diagnosis and immunotherapy in Korea rely mostly on imported allergen extracts. However, some allergens that are not important in Western countries are not commercially available, and even the same species of allergen source often displays differences in allergenicity due to amino acid sequence polymorphisms. Therefore, it is essential to prepare allergen extracts that reflect regional characteristics. Allergen standardization has been performed since 2009 with the support of the Korea Center for Disease Control and Prevention. Here, we summarize the current status of allergen standardization, focusing on the house dust mite and cockroach. Pollen allergens that are under investigation are also briefly described.
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Affiliation(s)
- Kyoung Yong Jeong
- Department of Internal Medicine and Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Jae-Hyun Lee
- Department of Internal Medicine and Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
| | - Eun-Jin Kim
- Center for Immunology and Pathology, Korea National Institute of Health, Osong, Cheongwon, Korea
| | - Joo-Shil Lee
- Center for Immunology and Pathology, Korea National Institute of Health, Osong, Cheongwon, Korea
| | - Sang-Heon Cho
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
| | - Soo-Jong Hong
- Department of Pediatrics, Childhood Asthma Atopy Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jung-Won Park
- Department of Internal Medicine and Institute of Allergy, Yonsei University College of Medicine, Seoul, Korea
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12
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Kim JH, Oh JW, Lee HB, Kim SW, Kang IJ, Kook MH, Kim BS, Park KS, Baek HS, Kim KR, Choi YJ. Changes in sensitization rate to weed allergens in children with increased weeds pollen counts in Seoul metropolitan area. J Korean Med Sci 2012; 27:350-5. [PMID: 22468096 PMCID: PMC3314845 DOI: 10.3346/jkms.2012.27.4.350] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Accepted: 01/26/2012] [Indexed: 11/23/2022] Open
Abstract
The prevalence of allergic diseases in children has increased for several decades. We evaluated the correlation between pollen count of weeds and their sensitization rate in Seoul, 1997-2009. Airborne particles carrying allergens were collected daily from 3 stations around Seoul. Skin prick tests to pollen were performed on children with allergic diseases. Ragweed pollen gradually increased between 1999 and 2005, decreased after 2005 and plateaued until 2009 (peak counts, 67 in 2003, 145 in 2005 and 83 grains/m(3)/day in 2007). Japanese hop pollen increased between 2002 and 2009 (peak counts, 212 in 2006 and 492 grains/m(3)/day in 2009). Sensitization rates to weed pollen, especially ragweed and Japanese hop in children with allergic diseases, increased annually (ragweed, 2.2% in 2000 and 2.8% in 2002; Japanese hop, 1.4% in 2000 and 1.9% in 2002). The age for sensitization to pollen gradually became younger since 2000 (4 to 6 yr of age, 3.5% in 1997 and 6.2% in 2009; 7 to 9 yr of age, 4.2% in 1997 and 6.4% in 2009). In conclusion, sensitization rates for weed pollens increase in Korean children given increasing pollen counts of ragweed and Japanese hop.
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Affiliation(s)
- Joo-Hwa Kim
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Jae-Won Oh
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Ha-Baik Lee
- Department of Pediatrics, Hanyang University College of Medicine, Seoul, Korea
| | - Seong-Won Kim
- Department of Pediatrics, Busan St. Maria Hospital, Busan, Korea
| | - Im-Joo Kang
- Department of Pediatrics, Daegu Fatima Hospital, Daegu, Korea
| | - Myung-Hee Kook
- Department of Pediatrics, Gwangju Veteran's Hospital, Gwangju, Korea
| | - Bong-Seong Kim
- Department of Pediatrics, Asan Medical Center, University of Ulsan College of Medicine, Gangneung, Korea
| | - Kang-Seo Park
- Department of Pediatrics, Jeonju Jesus Hospital, Jeonju, Korea
| | - Hey-Sung Baek
- Department of Pediatrics, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Kyu-Rang Kim
- Applied Meteorology Research Laboratory, National Institute of Meteorological Research, Seoul, Korea
| | - Young-Jean Choi
- Applied Meteorology Research Laboratory, National Institute of Meteorological Research, Seoul, Korea
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13
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Ye YM, Lee SK, Kim SH, Nahm DH, Suh CH, Park HS. Changes of serum cytokines after the long term immunotherapy with Japanese hop pollen extracts. J Korean Med Sci 2006; 21:805-10. [PMID: 17043410 PMCID: PMC2721987 DOI: 10.3346/jkms.2006.21.5.805] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Japanese hop (Hop J) pollen has been considered as one of the major causative pollen allergens in the autumn season. We developed a new Hop J immunotherapy extract in collaboration with Allergopharma (Reinbeck, Germany) and investigated immunologic mechanisms during 3 yr immunotherapy. Twenty patients (13 asthma with rhinitis and 7 hay fever) were enrolled from Ajou University Hospital. Sera were collected before, 1 yr, and 3 yr after the immunotherapy. Changes of serum specific IgE, IgG1, and IgG4 levels to Hop J pollen extracts and serum IL-10, IL-12, TGF-beta1 and soluble CD23 levels were monitored by ELISA. Skin reactivity and airway hyper-responsiveness to methacholine were improved during the study period. Specific IgG1 increased at 1 yr then decreased again at 3 yr, and specific IgG4 levels increased progressively (p<0.05, respectively), whereas total and specific IgE levels showed variable responses with no statistical significance. IL-10, TGF-beta1 and soluble CD23 level began to decrease during first year and then further decreased during next two years with statistical significances. (p<0.05, respectively). In conclusion, these findings suggested the favorable effect of long term immunotherapy with Hop J pollen extracts can be explained by lowered IgE affinity and generation of specific IgG4, which may be mediated by IL-10 and TGF-beta1.
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Affiliation(s)
- Young-Min Ye
- Department of Allergy and Rheumatology, Ajou University School of Medicine, Suwon, Korea
| | - Soo-Keol Lee
- Department of Internal Medicine, College of Medicine, Dong-A University, Busan, Korea
| | - Seung-Hyun Kim
- Department of Allergy and Rheumatology, Ajou University School of Medicine, Suwon, Korea
| | - Dong-Ho Nahm
- Department of Allergy and Rheumatology, Ajou University School of Medicine, Suwon, Korea
| | - Chang-Hee Suh
- Department of Allergy and Rheumatology, Ajou University School of Medicine, Suwon, Korea
| | - Hae-Sim Park
- Department of Allergy and Rheumatology, Ajou University School of Medicine, Suwon, Korea
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Kreuzer M, O’Sullivan C, Pravda M, Guilbault G. Development of an immunosensor for the determination of allergy antibody (IgE) in blood samples. Anal Chim Acta 2001. [DOI: 10.1016/s0003-2670(01)01137-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Park HS, Nahm DH, Kim HY, Suh YJ, Cho JW, Kim SS, Lee SK, Jung KS. Clinical and immunologic changes after allergen immunotherapy with Hop Japanese pollen. Ann Allergy Asthma Immunol 2001; 86:444-8. [PMID: 11345290 DOI: 10.1016/s1081-1206(10)62493-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND AND OBJECTIVE Hop Japanese (Hop J) pollen has been reported as one of the major causative pollen allergens in the autumn season. There have been no published data regarding the clinical and immunologic effects of Hop J pollen immunotherapy in sensitized patients. In this study, we evaluated clinical and immunologic effects of Hop J immunotherapy. PATIENTS AND METHODS Pollens were collected in our area, and "Depo-Hop J" was prepared in the laboratory of Allergopharma (Reinbek, Germany). Fifteen asthmatic patients who had Hop J immunotherapy for > 1 year were enrolled. Their clinical parameters, such as asthma symptom scores, were monitored. Skin reactivity to Hop J and degree of airway hyperresponsiveness to methacholine were measured before and 1 year after the immunotherapy. Sera were collected before the immunotherapy, at the end of initial therapy, and 1 year after the therapy. Serum total IgE levels were compared by radioimmunoassay. Serum-specific IgE, IgG1, and IgG4 levels to Hop J were compared by ELISA. To evaluate the changes of cellular mechanisms, soluble CD30 (sCD30), soluble interleukin (IL)-2 receptor (sIL-2R), soluble CD23 (sCD23), and IL-10 levels were measured by ELISA. RESULTS Specific IgG1 and IgG4 levels began to increase at the end of the initial therapy (P < 0.05) with significant decreases in symptom scores (P < 0.05), whereas total and specific IgE levels showed variable responses during the immunotherapy with no statistical significance (P > 0.05). Serum sIL-2R and sCD30 levels decreased significantly (P < 0.05) 1 year after immunotherapy. No significant changes were noted in sCD23, IL-10, skin reactivity to Hop J, or airway responsiveness to methacholine (P > 0.05). CONCLUSIONS We are certain that Hop J allergen immunotherapy, if carried out properly according to suitable indications, can favorably influence asthma. Thus, an increase in specific IgG4 and IgG1 antibodies and reduction of a possible Th2 lymphocyte marker (sCD30) may be associated with symptomatic improvements.
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Affiliation(s)
- H S Park
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea.
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Park JW, Ko SH, Kim CW, Jeoung BJ, Hong CS. Identification and characterization of the major allergen of the Humulus japonicus pollen. Clin Exp Allergy 1999; 29:1080-6. [PMID: 10457112 DOI: 10.1046/j.1365-2222.1999.00615.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Pollen of Humulus japonicus has been known as one of the important causes of pollinosis in Korea and China. To date, the major allergen of H. japonicus has not been determined. OBJECTIVE To identify the major allergen of H. japonicus pollen and characterize its biochemical properties. METHODS With the sera of 29 patients reactive to H. japonicus, the major allergen of H. japonicus was determined from the results of IgE immunoblotting and ELISA inhibition. The biochemical properties of the major allergen of H. japonicus were evaluated by lectin blotting assay and 2-dimensional PAGE blot. N-terminal amino acid sequences were determined by the Edman degradation method. The suggested major allergen was purified by DEAE anion exchange and gel filtration chromatography. RESULTS Twenty-nine sera contained IgE bound to the 10, 16, 20, 29 and 42 kDa proteins of H. japonicus in immunoblot analysis. A protein of 10 kDa was the most prevalent allergen in the sera of H. japonicus-reactive patients (72%). The ELISA optical density of H. japonicus-specific IgE was not inhibited by pollen extracts of birch, oak, rye grass and mugwort. The 10-kDa allergen was neither stained with PAS nor bound with ConA and five other lectins. The isoelectric point of the 10-kDa allergen was approximately pH 5.1. We sequenced the N-terminal amino acids of the 10-kDa allergen, which was not homologous with any previously characterized allergen. The 10-kDa allergen could be purified with DEAE anion exchange and gel filtration chromatography. Maximum inhibitions of H. japonicus-specific IgE ELISA by whole extract of H. japonicus and purified 10-kDa allergen were more than 97 and 88%, respectively, while the 50% inhibitory concentration of the whole extract of H. japonicus and purified 10 kDa were 38 and 20 ng/mL, respectively. CONCLUSION The 10-kDa peptide could be a major allergen of H. japonicus. Its isoelectric point was 5.1 and it did not bind with lectins. The N-terminal amino acid sequence of the 10-kDa major allergen was also determined.
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Affiliation(s)
- J W Park
- Department of Internal Medicine, Institute of Allergy, College of Medicine, Yonsei University, Seoul, Korea
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