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.
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DOI:
10.1371/journal.pbio.0030150
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发表时间:
2005-06
期刊:
影响因子:
9.8
通讯作者:
Cyster JG
中科院分区:
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
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.
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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:
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影响因子:
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作者:
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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
影响因子:
30.5
作者:
Hugues, S;Fetler, L;Amigorena, S
通讯作者:
Amigorena, S
影响因子:
--
作者:
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通讯作者:
SAINTEMARIE, G