Distinct roles of short and long thymic stromal lymphopoietin isoforms in house dust mite-induced asthmatic airway epithelial barrier disruption.

Distinct roles of short and long thymic stromal lymphopoietin isoforms in house dust mite-induced asthmatic airway epithelial barrier disruption.
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短胸腺基质淋巴细胞生成素亚型和长胸腺基质淋巴细胞亚型在屋尘螨诱导的哮喘气道上皮屏障破坏中的不同作用

DOI:
10.1038/srep39559
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发表时间:
2016-12-20
期刊:
影响因子:
4.6
通讯作者:
Cai S
Cai S
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Dong H;Hu Y;Liu L;Zou M;Huang C;Luo L;Yu C;Wan X;Zhao H;Chen J;Xie Z;Le Y;Zou F;Cai S

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气道上皮完整性的丧失对哮喘发病机制有重要影响。胸腺基质淋巴细胞生成素(TSLP)可能具有双重免疫调节作用。在肠道炎症性疾病中,TSLP 的长异构体 (lfTSLP) 会促进炎症,而短异构体 (sfTSLP) 会抑制炎症。我们假设lfTSLP会导致屋尘螨(HDM)诱导的气道上皮屏障功能障碍,而合成的sfTSLP可以预防这些影响。在体外,通过监测跨上皮电阻、荧光右旋糖酐通透性以及E-钙粘蛋白和β-连环蛋白的分布来评估气道上皮屏障功能。在体内,BALB/c小鼠每周连续5天通过鼻吸入暴露于HDM以建立哮喘模型。在暴露于 HDM 之前 1 小时施用 sfTSLP 和 1α,25-二羟基维生素 D3 (1,25D3)。 8周后,进行动物肺功能测试和病理染色以评估哮喘进展。我们发现 HDM 和 lfTSLP 会损害屏障功能。 sfTSLP 和 1,25D3 治疗可防止 HDM 诱导的气道上皮屏障破坏。此外,sfTSLP 和 1,25D3 治疗可改善 HDM 诱导的小鼠哮喘。我们的数据强调了 sfTSLP 和 lfTSLP 不同表达模式和生物学特性的重要性。此外,我们的结果表明 sfTSLP 和 1,25D3 可以作为哮喘个体化治疗的新型治疗剂。
Loss of airway epithelial integrity contributes significantly to asthma pathogenesis. Thymic stromal lymphopoietin (TSLP) may have dual immunoregulatory roles. In inflammatory disorders of the bowel, the long isoform of TSLP (lfTSLP) promotes inflammation while the short isoform (sfTSLP) inhibits inflammation. We hypothesize that lfTSLP contributes to house dust mite (HDM)-induced airway epithelial barrier dysfunction and that synthetic sfTSLP can prevent these effects.In vitro, airway epithelial barrier function was assessed by monitoring transepithelial electrical resistance, fluorescent-dextran permeability, and distribution of E-cadherin and β-catenin.In vivo, BALB/c mice were exposed to HDM by nasal inhalation for 5 consecutive days per week to establish an asthma model. sfTSLP and 1α,25-Dihydroxyvitamin D3 (1,25D3) were administered 1 h before HDM exposure. After 8 weeks, animal lung function tests and pathological staining were performed to evaluate asthma progression. We found that HDM and lfTSLP impaired barrier function. Treatment with sfTSLP and 1,25D3 prevented HDM-induced airway epithelial barrier disruption. Moreover, sfTSLP and 1,25D3 treatment ameliorated HDM-induced asthma in mice. Our data emphasize the importance of the different expression patterns and biological properties of sfTSLP and lfTSLP. Moreover, our results indicate that sfTSLP and 1,25D3 may serve as novel therapeutic agents for individualized treatment of asthma.
DOI: 10.1111/cea.12102
发表时间: 2013-06
期刊: Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology
影响因子: --
作者:
Agrawal T;Gupta GK;Agrawal DK
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