Abstract:
BACKGROUND:Reactive oxygen species (ROS) and eosinophilic granule proteins such as eosinophil-derived neurotoxin (EDN) are known to damage bronchial tissue and cause airway hyperresponsiveness (AHR) in asthma. Hepatocyte growth factor (HGF) regulates various biological activities and is known to be a multifunctional factor. In our previous study, we found that HGF suppressed allergic airway inflammation and AHR in a murine model of asthma. However, there have been few reports regarding the detailed mechanism of the anti-allergic effect of HGF in asthma. In this study, we investigated the potential of recombinant HGF to regulate the production of ROS and the release of EDN from human eosinophils. METHODS:Eosinophils were isolated from subjects with mild eosinophilia by modified CD16-negative selection. We investigated the expression of CD69, an activation marker of eosinophils, on eosinophils, using flow cytometry. Further, ROS production from eosinophils was analyzed using luminol-dependent chemiluminescence, and EDN release was measured by ELISA. RESULTS:Treatment with HGF suppressed interleukin-5-induced upregulation of CD69 expression, ROS production and EDN release from human eosinophils. CONCLUSION:Taken together, these data suggest that in asthma, HGF attenuates allergic airway inflammation and AHR through at least the suppression of ROS production and EDN release from eosinophils.
journal_name
Int Arch Allergy Immunoljournal_title
International archives of allergy and immunologyauthors
Ito W,Takeda M,Fujita M,Kamada Y,Kato H,Chiba T,Yamaguchi K,Ueki S,Kayaba H,Kanehiro A,Chihara Jdoi
10.1159/000144041subject
Has Abstractpub_date
2008-01-01 00:00:00pages
331-7issue
4eissn
1018-2438issn
1423-0097pii
000144041journal_volume
147pub_type
杂志文章abstract::Accumulation and activation of eosinophils in tissue are critical events in the allergic inflammatory response and adhesion molecules play important roles in this process. We previously demonstrated that human eosinophils expressed a nuclear receptor, peroxisome proliferator-activated receptor gamma (PPARgamma), and t...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000126054
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Previous studies suggest that administration of probiotics in vitro can stimulate regulatory and Th1 immune responses. We studied both the in vitro immunological effects of probiotics and the ex vivo immunological effects after oral administration of probiotics in children with food allergy, a Th2-mediated d...
journal_title:International archives of allergy and immunology
pub_type: 临床试验,杂志文章
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更新日期:2007-01-01 00:00:00
abstract:INTRODUCTION:Venom immunotherapy (VIT) is considered to be the gold-standard treatment for patients with Hymenoptera venom allergy. Data regarding VIT in bee venom (BV) allergic patients are scarce. AIM:The aim of this study was to evaluate the outcome of VIT in patients with exclusive BV allergy and to try to define ...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
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abstract::Peritoneal mast cells of Syrian hamsters release histamine to the action of concanavalin A (Con A) in dose-dependent fashion. The rate of release was very rapid in the first seconds of cell activation and completed in 60 s after the challenge. Morphological changes concomitant to the lectin treatment, followed by elec...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
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journal_title:International archives of allergy and immunology
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doi:10.1159/000493581
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abstract::A high-dose, accelerated escalation schedule during subcutaneous allergen-specific immunotherapy (AIT) is safe and well-tolerated in adults. However, there are no data in children and adolescents. The aim of the present trial was to assess safety and tolerability of an accelerated dose escalation schedule of an AIT wi...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000371421
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章,评审
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
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更新日期:1995-10-01 00:00:00
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pub_type: 杂志文章,评审
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000368405
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章,评审
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000095290
更新日期:2006-01-01 00:00:00
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
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更新日期:1999-02-01 00:00:00
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000318704
更新日期:2011-01-01 00:00:00
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pub_type: 杂志文章
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更新日期:2015-01-01 00:00:00
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000436968
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2005-05-01 00:00:00
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000024159
更新日期:1999-02-01 00:00:00
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236168
更新日期:1992-01-01 00:00:00
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章,随机对照试验
doi:10.1159/000151502
更新日期:2009-01-01 00:00:00
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000236975
更新日期:1995-05-01 00:00:00
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journal_title:International archives of allergy and immunology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1159/000319211
更新日期:2011-01-01 00:00:00
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
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更新日期:1995-08-01 00:00:00
abstract:BACKGROUND:The 2S albumins are a group of storage proteins that occur widely in seeds of dicotyledonous plants. The widespread distribution and stability to digestion of allergenic 2S albumins raise the question of why some members of this family present in important food sources, such as soybean, are not regarded as m...
journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000094535
更新日期:2006-01-01 00:00:00
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journal_title:International archives of allergy and immunology
pub_type: 杂志文章
doi:10.1159/000095997
更新日期:2007-01-01 00:00:00