Actin-mediated feedback loops in B-cell receptor signaling.

Actin-mediated feedback loops in B-cell receptor signaling.
复制标题

DOI:
10.1111/imr.12113
复制
发表时间:
2013-11
影响因子:
8.7
通讯作者:
Upadhyaya A
Upadhyaya A
中科院分区:
医学1区
文献类型:
--
作者:
Song W;Liu C;Seeley-Fallen MK;Miller H;Ketchum C;Upadhyaya A

文献摘要

参考文献

被引文献

相似文献

在识别同源抗原后,B细胞动员多个细胞装置以传播最佳应答。抗原结合通过B细胞表面的基于B细胞抗原受体(BCR)的信号体被转导成细胞质信号传导事件。BCR信号体是动态和瞬时的,随后被内吞用于抗原加工。BCR信号体的功能是决定B细胞命运的因素之一:克隆扩增、无能或凋亡。越来越多的证据强调了肌动蛋白细胞骨架在B细胞活化中的重要性。我们已经开始认识到肌动蛋白动力学在调节BCR介导的紧张性信号传导和BCR信号体形成中的作用。我们最近的研究揭示了肌动蛋白细胞骨架在下调BCR信号传导中的额外功能,从而有助于B细胞自身耐受的产生和维持。在这篇综述中,我们讨论了肌动蛋白如何重塑其组织和动力学与BCR信号密切协调,以及肌动蛋白重塑如何反过来放大BCR信号的激活和随后的下调过程,为最佳的BCR激活提供重要的反馈。
Upon recognizing cognate antigen, B cells mobilize multiple cellular apparatuses to propagate an optimal response. Antigen binding is transduced into cytoplasmic signaling events through B-cell antigen receptor (BCR)-based signalosomes at the B-cell surface. BCR signalosomes are dynamic and transient and are subsequently endocytosed for antigen processing. The function of BCR signalosomes is one of the determining factors for the fate of B cells: clonal expansion, anergy, or apoptosis. Accumulating evidence underscores the importance of the actin cytoskeleton in B-cell activation. We have begun to appreciate the role of actin dynamics in regulating BCR-mediated tonic signaling and the formation of BCR signalosomes. Our recent studies reveal an additional function of the actin cytoskeleton in the downregulation of BCR signaling, consequently contributing to the generation and maintenance of B-cell self-tolerance. In this review, we discuss how actin remodels its organization and dynamics in close coordination with BCR signaling and how actin remodeling in turn amplifies the activation and subsequent downregulation process of BCR signaling, providing vital feedback for optimal BCR activation.
DOI: 10.1038/35060104
发表时间: 2001-03-01
影响因子: 21.3
作者:
Amann, KJ;Pollard, TD
通讯作者: Pollard, TD
DOI: 10.1016/j.immuni.2007.12.003
发表时间: 2008-01-01
期刊: IMMUNITY
影响因子: 32.4
作者:
Arana, Eloisa;Vehlow, Anne;Batista, Facundo D.
通讯作者: Batista, Facundo D.
DOI: 10.1016/s1074-7613(00)80555-5
发表时间: 1998-04-01
期刊: IMMUNITY
影响因子: 32.4
作者:
Bolland, S;Pearse, RN;Ravetch, JV
通讯作者: Ravetch, JV
DOI: 10.1016/s1074-7613(04)00105-0
发表时间: 2004-05-01
期刊: IMMUNITY
影响因子: 32.4
作者:
Carrasco, YR;Fleire, SJ;Batista, FD
通讯作者: Batista, FD
DOI: 10.1038/ni.2116
发表时间: 2011-11-01
期刊: NATURE IMMUNOLOGY
影响因子: 30.5
作者:
Chaturvedi, Akanksha;Martz, Rebecca;Pierce, Susan K.
通讯作者: Pierce, Susan K.