Antigen-engaged B cells undergo chemotaxis toward the T zone and form motile conjugates with helper T cells.

Antigen-engaged B cells undergo chemotaxis toward the T zone and form motile conjugates with helper T cells.
复制标题

DOI:
10.1371/journal.pbio.0030150
复制
发表时间:
2005-06
期刊:
影响因子:
9.8
通讯作者:
Cyster JG
Cyster JG
中科院分区:
生物学1区
文献类型:
--
作者:
Okada T;Miller MJ;Parker I;Krummel MF;Neighbors M;Hartley SB;O'Garra A;Cahalan MD;Cyster JG

文献摘要

参考文献

被引文献

相似文献

B细胞和T细胞之间的相互作用对于大多数抗体反应是必不可少的,但这些相互作用的动力学机制尚不清楚。通过对完整淋巴结的双光子显微镜观察,我们发现,在暴露于抗原后,B细胞以CCR7依赖的方式,通过表现出CCR7配体梯度的区域,以定向偏好的方式向B区-T区边界迁移。最初B细胞的运动能力降低,但在1d后,运动能力增加到约9μm/min。抗原结合的B细胞与抗原特异性的辅助T细胞配对持续10到60分钟以上,而非抗原特异性的相互作用持续不到10分钟。B细胞-T细胞结合物在B细胞的引导下,具有高度的动态性和广泛的迁移性。B细胞偶尔接触一个以上的T细胞,而T细胞在相互作用中严格地是一夫一妻制的。这些发现提供了体内淋巴细胞趋化的证据,并开始定义与T细胞依赖的抗体反应相关的时空细胞动力学。用双光子激光扫描显微镜监测完整淋巴结中B细胞和T细胞之间的相互作用。
Interactions between B and T cells are essential for most antibody responses, but the dynamics of these interactions are poorly understood. By two-photon microscopy of intact lymph nodes, we show that upon exposure to antigen, B cells migrate with directional preference toward the B-zone–T-zone boundary in a CCR7-dependent manner, through a region that exhibits a CCR7-ligand gradient. Initially the B cells show reduced motility, but after 1 d, motility is increased to approximately 9 μm/min. Antigen-engaged B cells pair with antigen-specific helper T cells for 10 to more than 60 min, whereas non-antigen-specific interactions last less than 10 min. B cell–T cell conjugates are highly dynamic and migrate extensively, being led by B cells. B cells occasionally contact more than one T cell, whereas T cells are strictly monogamous in their interactions. These findings provide evidence of lymphocyte chemotaxis in vivo, and they begin to define the spatiotemporal cellular dynamics associated with T cell–dependent antibody responses. Interactions between B and T cells in intact lymph nodes are monitored with two-photon laser scanning microscopy.
DOI: 10.1084/jem.179.2.425
发表时间: 1994-02-01
期刊: The Journal of experimental medicine
影响因子: --
作者:
Cooke MP;Heath AW;Shokat KM;Zeng Y;Finkelman FD;Linsley PS;Howard M;Goodnow CC
通讯作者: Goodnow CC
DOI: 10.1126/science.281.5373.96
发表时间: 1998-07-03
期刊: SCIENCE
影响因子: 56.9
作者:
Garside, P;Ingulli, E;Jenkins, MK
通讯作者: Jenkins, MK
DOI: 10.1084/jem.192.10.1425
发表时间: 2000-11-20
期刊: The Journal of experimental medicine
影响因子: --
作者:
Gretz JE;Norbury CC;Anderson AO;Proudfoot AE;Shaw S
通讯作者: Shaw S
DOI: 10.1038/ni1134
发表时间: 2004-12-01
期刊: NATURE IMMUNOLOGY
影响因子: 30.5
作者:
Hugues, S;Fetler, L;Amigorena, S
通讯作者: Amigorena, S
DOI: 10.1002/ar.1091990206
发表时间: 1981-01-01
期刊: ANATOMICAL RECORD
影响因子: --
作者:
BELISLE, C;SAINTEMARIE, G
通讯作者: SAINTEMARIE, G