Clonal and cellular dynamics in germinal centers.

Clonal and cellular dynamics in germinal centers.
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DOI:
10.1016/j.coi.2014.02.010
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发表时间:
2014-06
影响因子:
7
通讯作者:
Mesin L
Mesin L
中科院分区:
医学2区
文献类型:
--
作者:
Victora GD;Mesin L

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生发中心(GCs)是抗体亲和力成熟的场所,这是一个涉及复杂克隆和细胞动力学的过程。携带高亲和力免疫球蛋白的B细胞的选择是通过一种刻板的模式进行的,即B细胞在GC的两个解剖间隔之间循环迁移。这一过程发生在一个非常适合活体显微镜分析的时间框架内,近年来通过使用这些技术已经学到了很多东西。在更长的时间尺度上,单个GC中B细胞克隆和变体的多样性也被认为随着亲和力成熟的进展而变化;然而,我们对单个GC中克隆动力学的了解是有限的。我们讨论在阐明克隆和细胞动力学模式方面的最新进展。
Germinal centers (GCs) are the site of antibody affinity maturation, a process that involves complex clonal and cellular dynamics. Selection of B cells bearing higher-affinity immunoglobulins proceeds via a stereotyped pattern where B cells migrate cyclically between the GC’s two anatomical compartments. This process occurs in a timeframe that is well suited to analysis by intravital microscopy, and much has been learned in recent years by use of these techniques. On a longer time scale, the diversity of B cell clones and variants within individual GCs is also thought to change as affinity maturation progresses; however, our understanding of clonal dynamics in individual GCs is limited. We discuss recent progress in the elucidation of clonal and cellular dynamics patterns.
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