The tick salivary protein sialostatin L inhibits the Th9-derived production of the asthma-promoting cytokine IL-9 and is effective in the prevention of experimental asthma.
The tick salivary protein sialostatin L inhibits the Th9-derived production of the asthma-promoting cytokine IL-9 and is effective in the prevention of experimental asthma.
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DOI:
10.4049/jimmunol.1100529
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发表时间:
2012-03-15
期刊:
影响因子:
--
通讯作者:
Schmitt E
中科院分区:
文献类型:
--
作者:
Horka H;Staudt V;Klein M;Taube C;Reuter S;Dehzad N;Andersen JF;Kopecky J;Schild H;Kotsyfakis M;Hoffmann M;Gerlitzki B;Stassen M;Bopp T;Schmitt E
Ticks developed a multitude of different immune evasion strategies in order to obtain a blood meal. Sialostatin L is an immunosuppressive cysteine protease inhibitor present in the saliva of the hard tick Ixodes scapularis. Herein we demonstrate that sialostatin L strongly inhibits the production of IL-9 by Th9 cells. Since we could show recently that Th9-derived IL-9 is essentially involved in the induction of asthma symptoms, sialostatin L was used for the treatment of experimental asthma. Application of sialostatin L in a model of experimental asthma almost completely abrogated airway hyperresponsiveness and eosinophilia. Our data suggest that sialostatin L can prevent experimental asthma, most likely by inhibiting the IL-9 production of Th9 cells. Thus, alternative to IL-9 neutralization sialostatin L provides the basis for the development of innovative therapeutic strategies to treat asthma.
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