Generalized Lévy walks and the role of chemokines in migration of effector CD8+ T cells.
Generalized Lévy walks and the role of chemokines in migration of effector CD8+ T cells.
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DOI:
10.1038/nature11098
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发表时间:
2012-06-28
期刊:
影响因子:
64.8
通讯作者:
Hunter, Christopher A.
中科院分区:
文献类型:
--
作者:
Harris, Tajie H.;Banigan, Edward J.;Christian, David A.;Konradt, Christoph;Wojno, Elia D. Tait;Norose, Kazumi;Wilson, Emma H.;John, Beena;Weninger, Wolfgang;Luster, Andrew D.;Liu, Andrea J.;Hunter, Christopher A.
Chemokines play a central role in regulating processes essential to the immune function of T cells, such as their migration within lymphoid tissues and targeting of pathogens in sites of inflammation. Here we track T cells using multi-photon microscopy to demonstrate that the chemokine CXCL10 enhances the ability of CD8+ T cells to control the pathogen T. gondii in the brains of chronically infected mice. This chemokine boosts T cell function in two different ways: it maintains the effector T cell population in the brain and speeds up the average migration speed without changing the nature of the walk statistics. Remarkably, these statistics are not Brownian; rather, CD8+ T cell motility in the brain is well described by a generalized Lévy walk. According to our model, this surprising feature enables T cells to find rare targets with more than an order of magnitude more efficiency than Brownian random walkers. Thus, CD8+ T cell behavior is similar to Lévy strategies reported in organisms ranging from mussels to marine predators and monkeys, and CXCL10 aids T cells in shortening the average time to find rare targets.
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影响因子:
2
作者:
Reynolds, A. M.;Bartumeus, F.
通讯作者:
Bartumeus, F.
DOI:
10.1073/pnas.2137243100
发表时间:
2003-10-28
影响因子:
11.1
作者:
Bartumeus, F;Peters, F;Catalan, J
通讯作者:
Catalan, J
影响因子:
64.8
作者:
Humphries, Nicolas E.;Queiroz, Nuno;Sims, David W.
通讯作者:
Sims, David W.
影响因子:
3.6
作者:
Ebert, LA;Schaerli, P;Moser, B
通讯作者:
Moser, B
影响因子:
64.8
作者:
Sims, David W.;Southall, Emily J.;Metcalfe, Julian D.
通讯作者:
Metcalfe, Julian D.