Identification of splenic reservoir monocytes and their deployment to inflammatory sites.

Identification of splenic reservoir monocytes and their deployment to inflammatory sites.
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DOI:
10.1126/science.1175202
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发表时间:
2009-07-31
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Pittet MJ
Pittet MJ
中科院分区:
其他
文献类型:
--
作者:
Swirski FK;Nahrendorf M;Etzrodt M;Wildgruber M;Cortez-Retamozo V;Panizzi P;Figueiredo JL;Kohler RH;Chudnovskiy A;Waterman P;Aikawa E;Mempel TR;Libby P;Weissleder R;Pittet MJ

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目前的范式表明,单核细胞自由循环并巡逻血管,但在组织进入时不可逆地分化为树突状细胞(DC)或巨噬细胞。在这里,我们表明,真正的未分化的单核细胞居住在脾脏和数量超过其等价物在循环中。储库单核细胞聚集在被膜下红髓的索中,并且与巨噬细胞和DC不同。响应于缺血性心肌损伤,脾单核细胞增加其运动性,离开脾包膜,在损伤组织中积聚,并参与伤口愈合。这些观察结果揭示了脾脏作为储存和快速部署单核细胞的位点的作用,并将脾脏单核细胞鉴定为身体用来调节炎症的资源。
A current paradigm states that monocytes circulate freely and patrol blood vessels but differentiate irreversibly into dendritic cells (DCs) or macrophages upon tissue entry. Here we show that bona fide undifferentiated monocytes reside in the spleen and outnumber their equivalents in circulation. The reservoir monocytes assemble in clusters in the cords of the subcapsular red pulp and are distinct from macrophages and DCs. In response to ischemic myocardial injury, splenic monocytes increase their motility, exit the spleen en masse, accumulate in injured tissue, and participate in wound healing. These observations uncover a role for the spleen as a site for storage and rapid deployment of monocytes and identify splenic monocytes as a resource that the body exploits to regulate inflammation.
单核吞噬细胞的起源和动力学。
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发表时间: 1968-09-01
影响因子: 15.3
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