Soluble IgE receptors--elements of the IgE network.

Soluble IgE receptors--elements of the IgE network.
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DOI:
10.1016/j.imlet.2011.08.004
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发表时间:
2011-12-30
期刊:
影响因子:
4.4
通讯作者:
Fiebiger, Edda
Fiebiger, Edda
中科院分区:
医学3区
文献类型:
--
作者:
Platzer, Barbara;Ruiter, Floortje;van der Mee, John;Fiebiger, Edda

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在血清中可以发现三种人IgE Fc受体的可溶性同种型,即FcεRI、FcεRII和半乳糖凝集素-3。这些可溶性IgE受体是通过与细胞外基质中的IgE相互作用的特征而统一的蛋白质的不同家族。FcεRI(高亲和力IgE受体)α链的截短形式最近被描述为可溶性同种型(sFcεRI)。CD 23(sCD 23)是一种低亲和力IgE受体,也称为FcεRII,其多种可溶性亚型通过细胞外和细胞内蛋白水解的不同机制产生。第二种低亲和力IgE受体,半乳糖凝集素-3,仅作为分泌蛋白存在。我们在这里讨论了这三种可溶性IgE受体作为人类IgE网络元件的生理作用。此外,我们还综述了sFcεRI、sCD 23和半乳糖凝集素-3作为人类疾病生物标志物的潜力和目前的应用。
Soluble isoforms of three human IgE Fc receptors, namely FcεRI, FcεRII and galectin-3, can be found in serum. These soluble IgE receptors are a diverse family of proteins unified by the characteristic of interacting with IgE in the extracellular matrix. A truncated form of the alpha-chain of FcεRI, the high affinity IgE receptor, has recently been described as a soluble isoform (sFcεRI). Multiple soluble isoforms of CD23 (sCD23), the low affinity IgE receptor also known as FcεRII, are generated via different mechanisms of extracellular and intracellular proteolysis. The second low affinity IgE receptor, galectin-3, only exists as a secretory protein. We here discuss the physiological roles of these three soluble IgE receptors as elements of the human IgE network. Additionally, we review the potential and current use of sFcεRI, sCD23 and galectin-3 as biomarkers in human disease.
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