IgE-dependent TSLP production by human mast cells and the role of mast cell-derived TSLP in bronchial asthma
人类肥大细胞 IgE 依赖性 TSLP 产生以及肥大细胞衍生的 TSLP 在支气管哮喘中的作用
基本信息
- 批准号:18604009
- 负责人:
- 金额:$ 2.64万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2006
- 资助国家:日本
- 起止时间:2006 至 2007
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
To investigate the thymic stromal lymphopoietin (TSLP) expression in asthmatic bronchial mucosa, we determined the cell populations expressing TSLP in the lungs of 16 asthmatics and of 11 controls by using immunohistochemistry. Ninety % of TSLP^+ cells were mast cells in the airways and the number of TSLP^+ mast cells was significantly increased in the airways of asthmatics (P < 0.0001). There was a significant correlation between the number of TSLP^+ mast cells and serum IgE level, hyperresponsibility, eosinophil count in the blood and the sputum, suggesting that mast cell-derived TSLP may play an important role in the pathogenesis of asthma. FcεRI-mediated activation of human mast cells upregulated TSLP mRNA expression 5.2±2.9 fold, and IL-4 significantly enhanced the FcεRI-mediated expression (53.7±15.9 fold, P< 0.05), but LPS and polyI : C failed to induce TSLP mRNA. We confirmed the production of TSLP in MC pellets and mast cell supernatants after activation in the presence of protease inhibitors, indicating mast cells are one of the main sources of TSLP in bronchial asthma.
为探讨胸腺基质淋巴生成素(TSLP)在哮喘支气管黏膜中的表达,应用免疫组织化学方法检测了16例哮喘患者和11例正常对照肺组织中TSLP的表达。哮喘患者呼吸道中90%以上的肥大细胞为肥大细胞,且肥大细胞数量显著增加(P<;0.0001)。TSLP~+肥大细胞数与血清IgE水平、高反应性、血和痰中嗜酸粒细胞计数呈显著正相关,提示肥大细胞来源的TSLP可能在哮喘发病机制中起重要作用。FcεRI介导的人肥大细胞表达上调5.2±2.9倍,IL 4显著增强FcεRI介导的TSLP m RNA表达(5 3.7±15.9倍,P<0.0 5),而脂多糖和PolyI:C不能诱导TSLP m RNA的表达。我们证实,在有蛋白酶抑制剂存在的情况下,MC小球和肥大细胞培养上清液中有TSLP的产生,提示肥大细胞是哮喘中TSLP的主要来源之一。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
IL-4にプライミングされたヒトマスト細胞からのFcεRI依存性thymic stromal lymphopoietinの産生
IL-4引发的人肥大细胞产生 FcεRI 依赖性胸腺基质淋巴细胞生成素
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:Okayama;Y.;Sagara;H.;Okumura;S.;Watanabe;N.;Fueki;M.;Sugiyama;K.;Takeda;K.;Fukuda;T.;Saito;H.;Ra;C;戸敷浩介・劉庭秀;Takeshi Sasaki;岡山 吉道
- 通讯作者:岡山 吉道
Hyperexpression of FcγRI and Toll-like receptor 4 in the intestinal mast cells of Crohn's disease patients.in the intestinal mast cells of Crohn's disease patients
克罗恩病患者肠道肥大细胞中FcγRI和Toll样受体4的过度表达。克罗恩病患者肠道肥大细胞中
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:Kobayashi;R.;Okamura;S.;Ohno;T.;Saito;H.;Mori;M.;Ra;C.;Okayama;Y
- 通讯作者:Y
Mast cell(MC)-derived thymic stromal lymphopoietin(TSLP)activates NKT cells to produce IL-4 in asthmatic airways
肥大细胞 (MC) 来源的胸腺基质淋巴细胞生成素 (TSLP) 激活 NKT 细胞在哮喘气道中产生 IL-4
- DOI:
- 发表时间:2008
- 期刊:
- 影响因子:0
- 作者:Daiko Wakita;et. al.;Okayama Y
- 通讯作者:Okayama Y
Expression of a functional platelet-activating factor receptor on human mast cells
功能性血小板激活因子受体在人肥大细胞上的表达
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:Kevin Roy. B. SERRONA;Jeongsoo YU;Kajiwara N
- 通讯作者:Kajiwara N
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OKAYAMA Yoshimichi其他文献
OKAYAMA Yoshimichi的其他文献
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{{ truncateString('OKAYAMA Yoshimichi', 18)}}的其他基金
Elucidation of mastcell/basophil activation mechanism in chronic spontaneous urticaria
慢性自发性荨麻疹肥大细胞/嗜碱性粒细胞激活机制的阐明
- 批准号:
20K08811 - 财政年份:2020
- 资助金额:
$ 2.64万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Treatment strategy of allergy and immunological diseases against MrgX2 expressed on human mast cells as a target molecule for the treatment
以人肥大细胞表达的MrgX2作为治疗靶分子的过敏和免疫性疾病的治疗策略
- 批准号:
15K09558 - 财政年份:2015
- 资助金额:
$ 2.64万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Investigation of mechanisms of human mast cell activation by respiratory syncytial virus (RSV) and human rhinovirus (HRV) and involvement of asthma inception by these viruses
研究呼吸道合胞病毒(RSV)和人鼻病毒(HRV)激活人类肥大细胞的机制以及这些病毒参与哮喘发作的机制
- 批准号:
23591470 - 财政年份:2011
- 资助金额:
$ 2.64万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
The expression of high affinity IgE receptor β-chain in human mast cells and basophils, and its roles
高亲和力IgE受体β链在人肥大细胞和嗜碱性粒细胞中的表达及其作用
- 批准号:
20591195 - 财政年份:2008
- 资助金额:
$ 2.64万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Investigation of human mast cell biological function induced by FcγRI aggregation
FcγRI聚集诱导人肥大细胞生物学功能的研究
- 批准号:
14570402 - 财政年份:2002
- 资助金额:
$ 2.64万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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