Small molecule analogues of the immunomodulatory parasitic helminth product ES-62 have anti-allergy properties.

Small molecule analogues of the immunomodulatory parasitic helminth product ES-62 have anti-allergy properties.
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DOI:
10.1016/j.ijpara.2014.05.001
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发表时间:
2014-08
影响因子:
4
通讯作者:
Harnett, William
Harnett, William
中科院分区:
医学2区
文献类型:
--
作者:
Rzepecka, Justyna;Coates, Michelle L.;Saggar, Moninder;Al-Riyami, Lamyaa;Coltherd, Jennifer;Tay, Hwee Kee;Huggan, Judith K.;Janicova, Lucia;Khalaf, Abedawn I.;Siebeke, Ivonne;Suckling, Colin J.;Harnett, Margaret M.;Harnett, William

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已经生产了蠕虫免疫调节剂ES-62的小分子类似物。两种类似物抑制肥大细胞功能并防止气道过敏。类似物是药物样的,可以考虑用于治疗人类过敏。ES-62是一种由丝状线虫Acanthocheilonema viteae分泌的糖蛋白,通过共价连接的磷酸胆碱部分表现出抗炎特性。筛选ES-62磷酸胆碱基小分子类似物(SMA)的库显示,两种化合物,称为11 a和12 b,反映蠕虫产品在体外抑制肥大细胞脱粒和细胞因子反应,并在防止卵清蛋白诱导的Th 2相关的气道炎症和嗜酸性粒细胞浸润的小鼠肺。此外,两种SMA在治疗性给药时可抑制肺中性粒细胞浸润。因此,ES-62-SMA 11 a和12 b代表了用于过敏症(如哮喘)的新药开发的起点。
Small molecule analogues of the helminth immunomodulator ES-62 have been produced. Two analogues inhibit mast cell functions and prevent airway hypersensitivity. The analogues are drug-like and could be considered for treatment of human allergy. ES-62, a glycoprotein secreted by the filarial nematode Acanthocheilonema viteae, exhibits anti-inflammatory properties by virtue of covalently attached phosphorylcholine moieties. Screening of a library of ES-62 phosphorylcholine-based small molecule analogues (SMAs) revealed that two compounds, termed 11a and 12b, mirrored the helminth product both in inhibiting mast cell degranulation and cytokine responses in vitro and in preventing ovalbumin-induced Th2-associated airway inflammation and eosinophil infiltration of the lungs in mice. Furthermore, the two SMAs inhibited neutrophil infiltration of the lungs when administered therapeutically. ES-62-SMAs 11a and 12b thus represent starting points for novel drug development for allergies such as asthma.
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