The long elusive IgM Fc receptor, FcμR.

The long elusive IgM Fc receptor, FcμR.
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DOI:
10.1007/s10875-014-0022-7
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发表时间:
2014-07
影响因子:
9.1
通讯作者:
Honjo K
Honjo K
中科院分区:
医学2区
文献类型:
--
作者:
Kubagawa H;Oka S;Kubagawa Y;Torii I;Takayama E;Kang DW;Jones D;Nishida N;Miyawaki T;Bertoli LF;Sanders SK;Honjo K

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IgM以B细胞表面的单体和浆细胞分泌的五聚体存在。免疫前“天然”和抗原诱导的“免疫”IgM抗体对于保护性免疫和通过识别病原体和自身抗原对自身免疫过程的免疫调节都是重要的。迄今为止,已经提出了与IgM的Fc部分相互作用的效应蛋白,例如补体和补体受体,但未能完全解释IgM介导的保护和调节。我们对IgM功能理解不足的一个主要原因似乎是缺乏长期难以捉摸的IgM Fc受体(FcμR)的数据。我们最近在人类和小鼠中发现了真正的FcμR。在这篇文章中,我们简要回顾了我们迄今为止对FcμR的了解。
IgM exists as both a monomer on the surface of B cells and a pentamer secreted by plasma cells. Both preimmune “natural” and antigen-induced “immune” IgM antibodies are important for protective immunity and for immune regulation of autoimmune processes by recognizing pathogens and self-antigens. Effector proteins interacting with the Fc portion of IgM, such as complement and complement receptors, have thus far been proposed but fail to fully account for the IgM-mediated protection and regulation. A major reason for this deficit in our understanding of IgM function seems to be lack of data on a long elusive Fc receptor for IgM (FcμR). We have recently identified a bona fide FcμR in both humans and mice. In this article we briefly review what we have learned so far about FcμR.
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发表时间: 2012-09-13
期刊: NATURE
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