A potential new target for asthma therapy: a disintegrin and metalloprotease 10 (ADAM10) involvement in murine experimental asthma.

A potential new target for asthma therapy: a disintegrin and metalloprotease 10 (ADAM10) involvement in murine experimental asthma.
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哮喘治疗的一个潜在新目标:解整合素和金属蛋白酶 10 (ADAM10) 参与小鼠实验性哮喘。

DOI:
10.1111/j.1398-9995.2011.02614.x
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发表时间:
2011-09
期刊:
影响因子:
12.4
通讯作者:
Conrad DH
Conrad DH
中科院分区:
医学1区
文献类型:
--
作者:
Mathews JA;Ford J;Norton S;Kang D;Dellinger A;Gibb DR;Ford AQ;Massay H;Kepley CL;Scherle P;Keegan AD;Conrad DH

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CD23(IgE 产生的天然调节剂)水平升高已被证明可以减少小鼠肺部炎症的迹象。本研究的目的是研究 ADAM10(主要 CD23 脱落酶)在实验性哮喘中的参与情况。 ADAM10 可通过使用 B 细胞特异性删除蛋白酶的小鼠或通过鼻内施用选择性 ADAM10 抑制剂进行药物阻断。然后测定气道超敏反应 (AHR) 和支气管肺泡灌洗液 (BALF) 嗜酸性粒细胞增多以及选定的 BALF 细胞因子/趋化因子水平。使用 IgE 和肥大细胞依赖性小鼠模型,与同窝对照小鼠相比,B 细胞特异性 ADAM10 -/- 小鼠(C57B/6 背景)表现出嗜酸性粒细胞增多和 AHR 减少。与 ADAM10-/- 动物相比,用 ADAM10 选择性抑制剂治疗 C57B/6 小鼠导致 BALF 嗜酸性粒细胞增多进一步减少。即使在Th2选择性菌株中,Balb/c、BALF嗜酸性粒细胞增多也分别从60%减少至23%。相比之下,当使用独立于 IgE/肥大细胞的肺部炎症模型时,B 细胞 ADAM10-/- 动物和 ADAM10 抑制剂治疗的动物的肺部炎症水平与对照组相似。因此,这些结果表明 ADAM10 在 IgE 依赖性肺部炎症的进展中很重要。该抑制剂的使用进一步表明 ADAM10 对于维持肺部 Th2 水平很重要。因此,这些结果表明,降低 ADAM10 活性可能有益于控制哮喘和可能的其他 IgE 依赖性疾病。
Elevated levels of CD23, a natural regulator of IgE production, have been shown to decrease the signs of lung inflammation in mice. The aim of this study was to study the involvement of ADAM10, the primary CD23 sheddase, in experimental asthma. ADAM10 was blocked either by using mice with a B cell specific deletion of the protease or pharmacologically by intranasal administration of selective ADAM10 inhibitors. Airway hypersensitivity (AHR) and bronchoaveolar lavage fluid (BALF) eosinophilia and select BALF cytokine/chemokine levels were then determined. Using an IgE and mast cell dependent mouse model, B cell specific ADAM10 -/- mice (C57B/6 background) exhibited decreased eosinophilia and AHR when compared to littermate controls. Treatment of C57B/6 mice with selective inhibitors of ADAM10 resulted in an even further decrease in BALF eosinophilia, as compared with the ADAM10-/- animals. Even in the Th2 selective strain, Balb/c, BALF eosinophilia was reduced from 60 to 23% respectively. In contrast when an IgE/mast cell independent model of lung inflammation was used, the B cell ADAM10-/- animals and ADAM10 inhibitor treated animals had lung inflammation levels that were similar to the controls. These results thus show that ADAM10 is important in the progression of IgE dependent lung inflammation. The use of the inhibitor further suggested that ADAM10 was important for maintaining Th2 levels in the lung. These results thus suggest that decreasing ADAM10 activity could be beneficial in controlling asthma and possible other IgE dependent diseases.
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